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Diffstat (limited to 'gnu/packages/patches/icecat-update-graphite2.patch')
| -rw-r--r-- | gnu/packages/patches/icecat-update-graphite2.patch | 9988 |
1 files changed, 9988 insertions, 0 deletions
diff --git a/gnu/packages/patches/icecat-update-graphite2.patch b/gnu/packages/patches/icecat-update-graphite2.patch new file mode 100644 index 0000000000..af2c47bef7 --- /dev/null +++ b/gnu/packages/patches/icecat-update-graphite2.patch @@ -0,0 +1,9988 @@ +Copied from upstream: +https://hg.mozilla.org/releases/mozilla-esr38/raw-rev/ed4d2ce6046b + +# HG changeset patch +# User Jonathan Kew <jkew@mozilla.com> +# Date 1455126706 0 +# Node ID ed4d2ce6046b20287fd13c548dd3982fe1a24875 +# Parent 78d3632feb7b6f6046025352630bd4f5365f3106 +Bug 1246093 - Update graphite2 library to latest release on esr38. r=me,a=sledru+lizzard + +diff --git a/gfx/graphite2/COPYING b/gfx/graphite2/COPYING +new file mode 100644 +--- /dev/null ++++ b/gfx/graphite2/COPYING +@@ -0,0 +1,26 @@ ++/* GRAPHITE2 LICENSING ++ ++ Copyright 2010, SIL International ++ All rights reserved. ++ ++ This library is free software; you can redistribute it and/or modify ++ it under the terms of the GNU Lesser General Public License as published ++ by the Free Software Foundation; either version 2.1 of License, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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Here is a sample; alter the names: ++ ++ Yoyodyne, Inc., hereby disclaims all copyright interest in the ++ library `Frob' (a library for tweaking knobs) written by James ++ Random Hacker. ++ ++ <signature of Ty Coon>, 1 April 1990 ++ Ty Coon, President of Vice ++ ++That's all there is to it! ++ ++ +diff --git a/gfx/graphite2/README.md b/gfx/graphite2/README.md +new file mode 100644 +--- /dev/null ++++ b/gfx/graphite2/README.md +@@ -0,0 +1,32 @@ ++# Graphite engine ++ ++## What is Graphite? ++ ++Graphite is a system that can be used to create “smart fonts” capable of displaying writing systems with various complex behaviors. A smart font contains not only letter shapes but also additional instructions indicating how to combine and position the letters in complex ways. ++ ++Graphite was primarily developed to provide the flexibility needed for minority languages which often need to be written according to slightly different rules than well-known languages that use the same script. ++ ++Examples of complex script behaviors Graphite can handle include: ++ ++* contextual shaping ++* ligatures ++* reordering ++* split glyphs ++* bidirectionality ++* stacking diacritics ++* complex positioning ++* shape aware kerning ++* automatic diacritic collision avoidance ++ ++See [examples of scripts with complex rendering](http://scripts.sil.org/CmplxRndExamples). ++ ++## Graphite system overview ++The Graphite system consists of: ++ ++* A rule-based programming language [Graphite Description Language](http://scripts.sil.org/cms/scripts/page.php?site_id=projects&item_id=graphite_devFont#gdl) (GDL) that can be used to describe the behavior of a writing system ++* A compiler for that language ++* A rendering engine that can serve as the layout component of a text-processing application ++ ++Graphite renders TrueType fonts that have been extended by means of compiling a GDL program. ++ ++Further technical information is available on the [Graphite technical overview](http://scripts.sil.org/cms/scripts/page.php?site_id=projects&item_id=graphite_techAbout) page. +diff --git a/gfx/graphite2/README.mozilla b/gfx/graphite2/README.mozilla +--- a/gfx/graphite2/README.mozilla ++++ b/gfx/graphite2/README.mozilla +@@ -1,6 +1,7 @@ +-This directory contains the Graphite2 library from http://hg.palaso.org/graphitedev +- +-Current version derived from upstream changeset 1efd96aeade9 +- ++This directory contains the Graphite2 library release 1.3.5 from ++https://github.com/silnrsi/graphite/releases/download/1.3.5/graphite2-minimal-1.3.5.tgz + See gfx/graphite2/moz-gr-update.sh for update procedure. + ++Also includes two post-1.3.5 fixes: ++a8b3ac2aed0eb132cd80efe7de88f8153e73c829 ++e569e28d83491fedb31b9220493f3c07f6ec6d80 +diff --git a/gfx/graphite2/include/graphite2/Font.h b/gfx/graphite2/include/graphite2/Font.h +--- a/gfx/graphite2/include/graphite2/Font.h ++++ b/gfx/graphite2/include/graphite2/Font.h +@@ -24,18 +24,18 @@ + General Public License, as published by the Free Software Foundation, + either version 2 of the License or (at your option) any later version. + */ + #pragma once + + #include "graphite2/Types.h" + + #define GR2_VERSION_MAJOR 1 +-#define GR2_VERSION_MINOR 2 +-#define GR2_VERSION_BUGFIX 4 ++#define GR2_VERSION_MINOR 3 ++#define GR2_VERSION_BUGFIX 5 + + #ifdef __cplusplus + extern "C" + { + #endif + + typedef struct gr_face gr_face; + typedef struct gr_font gr_font; +diff --git a/gfx/graphite2/include/graphite2/Segment.h b/gfx/graphite2/include/graphite2/Segment.h +--- a/gfx/graphite2/include/graphite2/Segment.h ++++ b/gfx/graphite2/include/graphite2/Segment.h +@@ -115,35 +115,68 @@ enum gr_attrCode { + gr_slatJStretch, + /// Amount this slot can shrink (not implemented) + gr_slatJShrink, + /// Granularity by which this slot can stretch or shrink (not implemented) + gr_slatJStep, + /// Justification weight for this glyph (not implemented) + gr_slatJWeight, + /// Amount this slot mush shrink or stretch in design units +- gr_slatJWidth, ++ gr_slatJWidth = 29, + /// SubSegment split point + gr_slatSegSplit = gr_slatJStretch + 29, + /// User defined attribute, see subattr for user attr number + gr_slatUserDefn, + /// Bidi level +- gr_slatBidiLevel, ++ gr_slatBidiLevel = 56, ++ /// Collision flags ++ gr_slatColFlags, ++ /// Collision constraint rectangle left (bl.x) ++ gr_slatColLimitblx, ++ /// Collision constraint rectangle lower (bl.y) ++ gr_slatColLimitbly, ++ /// Collision constraint rectangle right (tr.x) ++ gr_slatColLimittrx, ++ /// Collision constraint rectangle upper (tr.y) ++ gr_slatColLimittry, ++ /// Collision shift x ++ gr_slatColShiftx, ++ /// Collision shift y ++ gr_slatColShifty, ++ /// Collision margin ++ gr_slatColMargin, ++ /// Margin cost weight ++ gr_slatColMarginWt, ++ // Additional glyph that excludes movement near this one: ++ gr_slatColExclGlyph, ++ gr_slatColExclOffx, ++ gr_slatColExclOffy, ++ // Collision sequence enforcing attributes: ++ gr_slatSeqClass, ++ gr_slatSeqProxClass, ++ gr_slatSeqOrder, ++ gr_slatSeqAboveXoff, ++ gr_slatSeqAboveWt, ++ gr_slatSeqBelowXlim, ++ gr_slatSeqBelowWt, ++ gr_slatSeqValignHt, ++ gr_slatSeqValignWt, + + /// not implemented + gr_slatMax, + /// not implemented + gr_slatNoEffect = gr_slatMax + 1 + }; + + enum gr_bidirtl { + /// Underlying paragraph direction is RTL + gr_rtl = 1, + /// Set this to not run the bidi pass internally, even if the font asks for it. +- /// This presumes that the segment is in a single direction. ++ /// This presumes that the segment is in a single direction. Most of the time ++ /// this bit should be set unless you know you are passing full paragraphs of text. + gr_nobidi = 2, + /// Disable auto mirroring for rtl text + gr_nomirror = 4 + }; + + typedef struct gr_char_info gr_char_info; + typedef struct gr_segment gr_segment; + typedef struct gr_slot gr_slot; +diff --git a/gfx/graphite2/include/graphite2/Types.h b/gfx/graphite2/include/graphite2/Types.h +--- a/gfx/graphite2/include/graphite2/Types.h ++++ b/gfx/graphite2/include/graphite2/Types.h +@@ -53,17 +53,20 @@ enum gr_encform { + #else + #if defined __GNUC__ + #define GR2_API __attribute__((dllimport)) + #else + #define GR2_API __declspec(dllimport) + #endif + #endif + #define GR2_LOCAL ++#elif __GNUC__ >= 4 ++ #if defined GRAPHITE2_STATIC ++ #define GR2_API __attribute__ ((visibility("hidden"))) ++ #else ++ #define GR2_API __attribute__ ((visibility("default"))) ++ #endif ++ #define GR2_LOCAL __attribute__ ((visibility("hidden"))) + #else +- #if __GNUC__ >= 4 +- #define GR2_API __attribute__ ((visibility("default"))) +- #define GR2_LOCAL __attribute__ ((visibility("hidden"))) +- #else +- #define GR2_API +- #define GR2_LOCAL +- #endif ++ #define GR2_API ++ #define GR2_LOCAL + #endif ++ +diff --git a/gfx/graphite2/moz-gr-update.sh b/gfx/graphite2/moz-gr-update.sh +--- a/gfx/graphite2/moz-gr-update.sh ++++ b/gfx/graphite2/moz-gr-update.sh +@@ -1,35 +1,49 @@ + #!/bin/bash + + # Script used to update the Graphite2 library in the mozilla source tree + + # This script lives in gfx/graphite2, along with the library source, + # but must be run from the top level of the mozilla-central tree. + +-# It expects to find a checkout of the graphite2 tree in a directory "graphitedev" +-# alongside the current mozilla tree that is to be updated. +-# Expect error messages from the copy commands if this is not found! ++# Run as ++# ++# ./gfx/graphite2/moz-gr-update.sh RELEASE ++# ++# where RELEASE is the graphite2 release to be used, e.g. "1.3.4". + +-# copy the source and headers +-cp -R ../graphitedev/src/* gfx/graphite2/src +-cp ../graphitedev/include/graphite2/* gfx/graphite2/include/graphite2 ++RELEASE=$1 + +-# record the upstream changeset that was used +-CHANGESET=$(cd ../graphitedev/ && hg log | head -n 1 | cut -d : -f 1,3 | sed -e 's/:/ /') +-echo "This directory contains the Graphite2 library from http://hg.palaso.org/graphitedev\n" > gfx/graphite2/README.mozilla +-echo "Current version derived from upstream" $CHANGESET >> gfx/graphite2/README.mozilla +-echo "\nSee" $0 "for update procedure.\n" >> gfx/graphite2/README.mozilla ++if [ "x$RELEASE" == "x" ] ++then ++ echo "Must provide the version number to be used." ++ exit 1 ++fi ++ ++TARBALL="https://github.com/silnrsi/graphite/releases/download/$RELEASE/graphite2-minimal-$RELEASE.tgz" ++ ++foo=`basename $0` ++TMPFILE=`mktemp -t ${foo}` || exit 1 ++ ++curl -L "$TARBALL" -o "$TMPFILE" ++tar -x -z -C gfx/graphite2/ --strip-components 1 -f "$TMPFILE" || exit 1 ++rm "$TMPFILE" ++ ++echo "This directory contains the Graphite2 library release $RELEASE from" > gfx/graphite2/README.mozilla ++echo "$TARBALL" >> gfx/graphite2/README.mozilla ++echo "" ++echo "See" $0 "for update procedure." >> gfx/graphite2/README.mozilla + + # fix up includes because of bug 721839 (cstdio) and bug 803066 (Windows.h) +-find gfx/graphite2/ -name "*.cpp" -exec perl -p -i -e "s/<cstdio>/<stdio.h>/;s/Windows.h/windows.h/;" {} \; +-find gfx/graphite2/ -name "*.h" -exec perl -p -i -e "s/<cstdio>/<stdio.h>/;s/Windows.h/windows.h/;" {} \; ++#find gfx/graphite2/ -name "*.cpp" -exec perl -p -i -e "s/<cstdio>/<stdio.h>/;s/Windows.h/windows.h/;" {} \; ++#find gfx/graphite2/ -name "*.h" -exec perl -p -i -e "s/<cstdio>/<stdio.h>/;s/Windows.h/windows.h/;" {} \; + + # summarize what's been touched +-echo Updated to $CHANGESET. ++echo Updated to $RELEASE. + echo Here is what changed in the gfx/graphite2 directory: + echo + + hg stat gfx/graphite2 + + echo + echo If gfx/graphite2/src/files.mk has changed, please make corresponding + echo changes to gfx/graphite2/src/moz.build +diff --git a/gfx/graphite2/src/CMakeLists.txt b/gfx/graphite2/src/CMakeLists.txt +--- a/gfx/graphite2/src/CMakeLists.txt ++++ b/gfx/graphite2/src/CMakeLists.txt +@@ -69,29 +69,31 @@ add_library(graphite2 SHARED + ${GRAPHITE2_VM_TYPE}_machine.cpp + gr_char_info.cpp + gr_features.cpp + gr_face.cpp + gr_font.cpp + gr_logging.cpp + gr_segment.cpp + gr_slot.cpp +- Bidi.cpp + CachedFace.cpp + CmapCache.cpp + Code.cpp ++ Collider.cpp ++ Decompressor.cpp + Face.cpp + FeatureMap.cpp + Font.cpp + GlyphFace.cpp + GlyphCache.cpp ++ Intervals.cpp + Justifier.cpp + NameTable.cpp + Pass.cpp +- Rule.cpp ++ Position.cpp + Segment.cpp + Silf.cpp + Slot.cpp + Sparse.cpp + TtfUtil.cpp + UtfCodec.cpp + ${FILEFACE} + ${SEGCACHE} +@@ -99,27 +101,28 @@ add_library(graphite2 SHARED + + set_target_properties(graphite2 PROPERTIES PUBLIC_HEADER "${GRAPHITE_HEADERS}" + SOVERSION ${GRAPHITE_SO_VERSION} + VERSION ${GRAPHITE_VERSION} + LT_VERSION_CURRENT ${GRAPHITE_API_CURRENT} + LT_VERSION_REVISION ${GRAPHITE_API_REVISION} + LT_VERSION_AGE ${GRAPHITE_API_AGE}) + +-if (${CMAKE_BUILD_TYPE} STREQUAL "ClangASN") +- set(GRAPHITE_LINK_FLAGS "-fsanitize=address") +-else (${CMAKE_BUILD_TYPE} STREQUAL "ClangASN") +- set(GRAPHITE_LINK_FLAGS "") +-endif (${CMAKE_BUILD_TYPE} STREQUAL "ClangASN") +- + if (${CMAKE_SYSTEM_NAME} STREQUAL "Linux") + set_target_properties(graphite2 PROPERTIES + COMPILE_FLAGS "-Wall -Wextra -Wno-unknown-pragmas -Wendif-labels -Wshadow -Wctor-dtor-privacy -Wnon-virtual-dtor -fno-rtti -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden -fno-stack-protector" + LINK_FLAGS "-nodefaultlibs ${GRAPHITE_LINK_FLAGS}" + LINKER_LANGUAGE C) ++ if (CMAKE_COMPILER_IS_GNUCXX) ++ add_definitions(-Wdouble-promotion) ++ endif (CMAKE_COMPILER_IS_GNUCXX) ++ message(STATUS "Compiler ID is: ${CMAKE_CXX_COMPILER_ID}") ++ if (${CMAKE_CXX_COMPILER_ID} STREQUAL "Clang") ++ add_definitions(-Wimplicit-fallthrough) ++ endif (${CMAKE_CXX_COMPILER_ID} STREQUAL "Clang") + if (${CMAKE_CXX_COMPILER} MATCHES ".*mingw.*") + target_link_libraries(graphite2 kernel32 msvcr90 mingw32 gcc user32) + else (${CMAKE_CXX_COMPILER} MATCHES ".*mingw.*") + if (GRAPHITE2_ASAN) + target_link_libraries(graphite2 c gcc_s) + else (GRAPHITE2_ASAN) + target_link_libraries(graphite2 c gcc) + endif (GRAPHITE2_ASAN) +@@ -127,17 +130,17 @@ if (${CMAKE_SYSTEM_NAME} STREQUAL "Linu + nolib_test(stdc++ $<TARGET_SONAME_FILE:graphite2>) + endif (${CMAKE_CXX_COMPILER} MATCHES ".*mingw.*") + set(CMAKE_CXX_IMPLICIT_LINK_LIBRARIES "") + CREATE_LIBTOOL_FILE(graphite2 "/lib${LIB_SUFFIX}") + endif (${CMAKE_SYSTEM_NAME} STREQUAL "Linux") + + if (${CMAKE_SYSTEM_NAME} STREQUAL "Darwin") + set_target_properties(graphite2 PROPERTIES +- COMPILE_FLAGS "-Wall -Wextra -Wno-unknown-pragmas -Wendif-labels -Wshadow -Wno-ctor-dtor-privacy -Wno-non-virtual-dtor -fno-rtti -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden -fno-stack-protector" ++ COMPILE_FLAGS "-Wall -Wextra -Wno-unknown-pragmas -Wimplicit-fallthrough -Wendif-labels -Wshadow -Wno-ctor-dtor-privacy -Wno-non-virtual-dtor -fno-rtti -fno-exceptions -fvisibility=hidden -fvisibility-inlines-hidden -fno-stack-protector" + LINK_FLAGS "-nodefaultlibs" + LINKER_LANGUAGE C) + target_link_libraries(graphite2 c) + include(Graphite) + nolib_test(stdc++ $<TARGET_SONAME_FILE:graphite2>) + set(CMAKE_CXX_IMPLICIT_LINK_LIBRARIES "") + CREATE_LIBTOOL_FILE(graphite2 "/lib${LIB_SUFFIX}") + endif (${CMAKE_SYSTEM_NAME} STREQUAL "Darwin") +diff --git a/gfx/graphite2/src/CmapCache.cpp b/gfx/graphite2/src/CmapCache.cpp +--- a/gfx/graphite2/src/CmapCache.cpp ++++ b/gfx/graphite2/src/CmapCache.cpp +@@ -33,31 +33,31 @@ of the License or (at your option) any l + + + using namespace graphite2; + + const void * bmp_subtable(const Face::Table & cmap) + { + const void * stbl; + if (!cmap.size()) return 0; +- if (TtfUtil::CheckCmapSubtable4(stbl = TtfUtil::FindCmapSubtable(cmap, 3, 1, cmap.size())) +- || TtfUtil::CheckCmapSubtable4(stbl = TtfUtil::FindCmapSubtable(cmap, 0, 3, cmap.size())) +- || TtfUtil::CheckCmapSubtable4(stbl = TtfUtil::FindCmapSubtable(cmap, 0, 2, cmap.size())) +- || TtfUtil::CheckCmapSubtable4(stbl = TtfUtil::FindCmapSubtable(cmap, 0, 1, cmap.size())) +- || TtfUtil::CheckCmapSubtable4(stbl = TtfUtil::FindCmapSubtable(cmap, 0, 0, cmap.size()))) ++ if (TtfUtil::CheckCmapSubtable4(stbl = TtfUtil::FindCmapSubtable(cmap, 3, 1, cmap.size()), cmap.size()) ++ || TtfUtil::CheckCmapSubtable4(stbl = TtfUtil::FindCmapSubtable(cmap, 0, 3, cmap.size()), cmap.size()) ++ || TtfUtil::CheckCmapSubtable4(stbl = TtfUtil::FindCmapSubtable(cmap, 0, 2, cmap.size()), cmap.size()) ++ || TtfUtil::CheckCmapSubtable4(stbl = TtfUtil::FindCmapSubtable(cmap, 0, 1, cmap.size()), cmap.size()) ++ || TtfUtil::CheckCmapSubtable4(stbl = TtfUtil::FindCmapSubtable(cmap, 0, 0, cmap.size()), cmap.size())) + return stbl; + return 0; + } + + const void * smp_subtable(const Face::Table & cmap) + { + const void * stbl; + if (!cmap.size()) return 0; +- if (TtfUtil::CheckCmapSubtable12(stbl = TtfUtil::FindCmapSubtable(cmap, 3, 10, cmap.size())) +- || TtfUtil::CheckCmapSubtable12(stbl = TtfUtil::FindCmapSubtable(cmap, 0, 4, cmap.size()))) ++ if (TtfUtil::CheckCmapSubtable12(stbl = TtfUtil::FindCmapSubtable(cmap, 3, 10, cmap.size()), cmap.size()) ++ || TtfUtil::CheckCmapSubtable12(stbl = TtfUtil::FindCmapSubtable(cmap, 0, 4, cmap.size()), cmap.size())) + return stbl; + return 0; + } + + template <unsigned int (*NextCodePoint)(const void *, unsigned int, int *), + uint16 (*LookupCodePoint)(const void *, unsigned int, int)> + bool cache_subtable(uint16 * blocks[], const void * cst, const unsigned int limit) + { +diff --git a/gfx/graphite2/src/Code.cpp b/gfx/graphite2/src/Code.cpp +--- a/gfx/graphite2/src/Code.cpp ++++ b/gfx/graphite2/src/Code.cpp +@@ -37,17 +37,17 @@ of the License or (at your option) any l + #include "inc/Code.h" + #include "inc/Face.h" + #include "inc/GlyphFace.h" + #include "inc/GlyphCache.h" + #include "inc/Machine.h" + #include "inc/Rule.h" + #include "inc/Silf.h" + +-#include <stdio.h> ++#include <cstdio> + + #ifdef NDEBUG + #ifdef __GNUC__ + #pragma GCC diagnostic ignored "-Wunused-parameter" + #endif + #endif + + +@@ -84,112 +84,119 @@ public: + struct limits; + struct analysis + { + uint8 slotref; + context contexts[256]; + byte max_ref; + + analysis() : slotref(0), max_ref(0) {}; +- void set_ref(int index) throw(); ++ void set_ref(int index, bool incinsert=false) throw(); ++ void set_noref(int index) throw(); + void set_changed(int index) throw(); + + }; + +- decoder(const limits & lims, Code &code) throw(); ++ decoder(limits & lims, Code &code, enum passtype pt) throw(); + + bool load(const byte * bc_begin, const byte * bc_end); + void apply_analysis(instr * const code, instr * code_end); + byte max_ref() { return _analysis.max_ref; } + int pre_context() const { return _pre_context; } + + private: + opcode fetch_opcode(const byte * bc); + void analyse_opcode(const opcode, const int8 * const dp) throw(); + bool emit_opcode(opcode opc, const byte * & bc); + bool validate_opcode(const opcode opc, const byte * const bc); + bool valid_upto(const uint16 limit, const uint16 x) const throw(); ++ bool test_context() const throw(); + void failure(const status_t s) const throw() { _code.failure(s); } + + Code & _code; + int _pre_context; + uint16 _rule_length; + instr * _instr; + byte * _data; +- const limits & _max; ++ limits & _max; + analysis _analysis; ++ enum passtype _passtype; ++ int _stack_depth; ++ bool _in_ctxt_item; + }; + + + struct Machine::Code::decoder::limits + { +- const byte * const bytecode; ++ const byte * bytecode; + const uint8 pre_context; + const uint16 rule_length, + classes, + glyf_attrs, + features; + const byte attrid[gr_slatMax]; + }; + +-inline Machine::Code::decoder::decoder(const limits & lims, Code &code) throw() ++inline Machine::Code::decoder::decoder(limits & lims, Code &code, enum passtype pt) throw() + : _code(code), + _pre_context(code._constraint ? 0 : lims.pre_context), + _rule_length(code._constraint ? 1 : lims.rule_length), +- _instr(code._code), _data(code._data), _max(lims) ++ _instr(code._code), _data(code._data), _max(lims), _passtype(pt), ++ _stack_depth(0), ++ _in_ctxt_item(false) + { } + + + + Machine::Code::Code(bool is_constraint, const byte * bytecode_begin, const byte * const bytecode_end, +- uint8 pre_context, uint16 rule_length, const Silf & silf, const Face & face) ++ uint8 pre_context, uint16 rule_length, const Silf & silf, const Face & face, ++ enum passtype pt, byte * * const _out) + : _code(0), _data(0), _data_size(0), _instr_count(0), _max_ref(0), _status(loaded), +- _constraint(is_constraint), _modify(false), _delete(false), _own(true) ++ _constraint(is_constraint), _modify(false), _delete(false), _own(_out==0) + { + #ifdef GRAPHITE2_TELEMETRY + telemetry::category _code_cat(face.tele.code); + #endif + assert(bytecode_begin != 0); + if (bytecode_begin == bytecode_end) + { +- ::new (this) Code(); ++ // ::new (this) Code(); + return; + } + assert(bytecode_end > bytecode_begin); + const opcode_t * op_to_fn = Machine::getOpcodeTable(); + +- // Allocate code and dat target buffers, these sizes are a worst case ++ // Allocate code and data target buffers, these sizes are a worst case + // estimate. Once we know their real sizes the we'll shrink them. +- _code = static_cast<instr *>(malloc((bytecode_end - bytecode_begin) +- * sizeof(instr))); +- _data = static_cast<byte *>(malloc((bytecode_end - bytecode_begin) +- * sizeof(byte))); ++ if (_out) _code = reinterpret_cast<instr *>(*_out); ++ else _code = static_cast<instr *>(malloc(estimateCodeDataOut(bytecode_end-bytecode_begin))); ++ _data = reinterpret_cast<byte *>(_code + (bytecode_end - bytecode_begin)); + + if (!_code || !_data) { + failure(alloc_failed); + return; + } + +- const decoder::limits lims = { ++ decoder::limits lims = { + bytecode_end, + pre_context, + rule_length, + silf.numClasses(), + face.glyphs().numAttrs(), + face.numFeatures(), + {1,1,1,1,1,1,1,1, + 1,1,1,1,1,1,1,255, + 1,1,1,1,1,1,1,1, + 1,1,1,1,1,1,0,0, + 0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0, silf.numUser()} + }; + +- decoder dec(lims, *this); ++ decoder dec(lims, *this, pt); + if(!dec.load(bytecode_begin, bytecode_end)) + return; + + // Is this an empty program? + if (_instr_count == 0) + { + release_buffers(); + ::new (this) Code(); +@@ -204,20 +211,25 @@ Machine::Code::Code(bool is_constraint, + + assert((_constraint && immutable()) || !_constraint); + dec.apply_analysis(_code, _code + _instr_count); + _max_ref = dec.max_ref(); + + // Now we know exactly how much code and data the program really needs + // realloc the buffers to exactly the right size so we don't waste any + // memory. +- assert((bytecode_end - bytecode_begin) >= std::ptrdiff_t(_instr_count)); +- assert((bytecode_end - bytecode_begin) >= std::ptrdiff_t(_data_size)); +- _code = static_cast<instr *>(realloc(_code, (_instr_count+1)*sizeof(instr))); +- _data = static_cast<byte *>(realloc(_data, _data_size*sizeof(byte))); ++ assert((bytecode_end - bytecode_begin) >= ptrdiff_t(_instr_count)); ++ assert((bytecode_end - bytecode_begin) >= ptrdiff_t(_data_size)); ++ memmove(_code + (_instr_count+1), _data, _data_size*sizeof(byte)); ++ size_t const total_sz = ((_instr_count+1) + (_data_size + sizeof(instr)-1)/sizeof(instr))*sizeof(instr); ++ if (_out) ++ *_out += total_sz; ++ else ++ _code = static_cast<instr *>(realloc(_code, total_sz)); ++ _data = reinterpret_cast<byte *>(_code + (_instr_count+1)); + + if (!_code) + { + failure(alloc_failed); + return; + } + + // Make this RET_ZERO, we should never reach this but just in case ... +@@ -232,16 +244,17 @@ Machine::Code::~Code() throw () + { + if (_own) + release_buffers(); + } + + + bool Machine::Code::decoder::load(const byte * bc, const byte * bc_end) + { ++ _max.bytecode = bc_end; + while (bc < bc_end) + { + const opcode opc = fetch_opcode(bc++); + if (opc == vm::MAX_OPCODE) + return false; + + analyse_opcode(opc, reinterpret_cast<const int8 *>(bc)); + +@@ -261,141 +274,194 @@ opcode Machine::Code::decoder::fetch_opc + + // Do some basic sanity checks based on what we know about the opcode + if (!validate_opcode(opc, bc)) return MAX_OPCODE; + + // And check it's arguments as far as possible + switch (opc) + { + case NOP : ++ break; + case PUSH_BYTE : + case PUSH_BYTEU : + case PUSH_SHORT : + case PUSH_SHORTU : + case PUSH_LONG : ++ ++_stack_depth; ++ break; + case ADD : + case SUB : + case MUL : + case DIV : + case MIN_ : + case MAX_ : +- case NEG : +- case TRUNC8 : +- case TRUNC16 : +- case COND : + case AND : + case OR : +- case NOT : + case EQUAL : + case NOT_EQ : + case LESS : + case GTR : + case LESS_EQ : + case GTR_EQ : ++ case BITOR : ++ case BITAND : ++ if (--_stack_depth <= 0) ++ failure(underfull_stack); ++ break; ++ case NEG : ++ case TRUNC8 : ++ case TRUNC16 : ++ case NOT : ++ case BITNOT : ++ case BITSET : ++ if (_stack_depth <= 0) ++ failure(underfull_stack); ++ break; ++ case COND : ++ _stack_depth -= 2; ++ if (_stack_depth <= 0) ++ failure(underfull_stack); + break; + case NEXT : + case NEXT_N : // runtime checked + case COPY_NEXT : ++ test_context(); + ++_pre_context; + break; + case PUT_GLYPH_8BIT_OBS : + valid_upto(_max.classes, bc[0]); ++ test_context(); + break; + case PUT_SUBS_8BIT_OBS : + valid_upto(_rule_length, _pre_context + int8(bc[0])); + valid_upto(_max.classes, bc[1]); + valid_upto(_max.classes, bc[2]); ++ test_context(); + break; + case PUT_COPY : + valid_upto(_rule_length, _pre_context + int8(bc[0])); ++ test_context(); + break; + case INSERT : +- --_pre_context; ++ if (_passtype >= PASS_TYPE_POSITIONING) ++ failure(invalid_opcode); ++ else ++ --_pre_context; + break; + case DELETE : ++ if (_passtype >= PASS_TYPE_POSITIONING) ++ failure(invalid_opcode); ++ test_context(); + break; + case ASSOC : + for (uint8 num = bc[0]; num; --num) + valid_upto(_rule_length, _pre_context + int8(bc[num])); ++ test_context(); + break; + case CNTXT_ITEM : + valid_upto(_max.rule_length, _max.pre_context + int8(bc[0])); +- if (bc + 2 + bc[1] >= _max.bytecode) failure(jump_past_end); +- if (_pre_context != 0) failure(nested_context_item); ++ if (bc + 2 + bc[1] >= _max.bytecode) failure(jump_past_end); ++ if (_in_ctxt_item) failure(nested_context_item); + break; + case ATTR_SET : + case ATTR_ADD : + case ATTR_SUB : + case ATTR_SET_SLOT : ++ if (--_stack_depth < 0) ++ failure(underfull_stack); + valid_upto(gr_slatMax, bc[0]); ++ test_context(); + break; + case IATTR_SET_SLOT : ++ if (--_stack_depth < 0) ++ failure(underfull_stack); + if (valid_upto(gr_slatMax, bc[0])) + valid_upto(_max.attrid[bc[0]], bc[1]); ++ test_context(); + break; + case PUSH_SLOT_ATTR : ++ ++_stack_depth; + valid_upto(gr_slatMax, bc[0]); + valid_upto(_rule_length, _pre_context + int8(bc[1])); + break; + case PUSH_GLYPH_ATTR_OBS : ++ ++_stack_depth; + valid_upto(_max.glyf_attrs, bc[0]); + valid_upto(_rule_length, _pre_context + int8(bc[1])); + break; + case PUSH_GLYPH_METRIC : ++ ++_stack_depth; + valid_upto(kgmetDescent, bc[0]); + valid_upto(_rule_length, _pre_context + int8(bc[1])); + // level: dp[2] no check necessary + break; + case PUSH_FEAT : ++ ++_stack_depth; + valid_upto(_max.features, bc[0]); + valid_upto(_rule_length, _pre_context + int8(bc[1])); + break; + case PUSH_ATT_TO_GATTR_OBS : ++ ++_stack_depth; + valid_upto(_max.glyf_attrs, bc[0]); + valid_upto(_rule_length, _pre_context + int8(bc[1])); + break; + case PUSH_ATT_TO_GLYPH_METRIC : ++ ++_stack_depth; + valid_upto(kgmetDescent, bc[0]); + valid_upto(_rule_length, _pre_context + int8(bc[1])); + // level: dp[2] no check necessary + break; + case PUSH_ISLOT_ATTR : ++ ++_stack_depth; + if (valid_upto(gr_slatMax, bc[0])) + { + valid_upto(_rule_length, _pre_context + int8(bc[1])); + valid_upto(_max.attrid[bc[0]], bc[2]); + } + break; + case PUSH_IGLYPH_ATTR :// not implemented ++ ++_stack_depth; ++ break; + case POP_RET : ++ if (--_stack_depth < 0) ++ failure(underfull_stack); ++ GR_FALLTHROUGH; ++ // no break + case RET_ZERO : + case RET_TRUE : + break; + case IATTR_SET : + case IATTR_ADD : + case IATTR_SUB : ++ if (--_stack_depth < 0) ++ failure(underfull_stack); + if (valid_upto(gr_slatMax, bc[0])) + valid_upto(_max.attrid[bc[0]], bc[1]); ++ test_context(); + break; + case PUSH_PROC_STATE : // dummy: dp[0] no check necessary + case PUSH_VERSION : ++ ++_stack_depth; + break; + case PUT_SUBS : + valid_upto(_rule_length, _pre_context + int8(bc[0])); + valid_upto(_max.classes, uint16(bc[1]<< 8) | bc[2]); + valid_upto(_max.classes, uint16(bc[3]<< 8) | bc[4]); ++ test_context(); + break; + case PUT_SUBS2 : // not implemented + case PUT_SUBS3 : // not implemented + break; + case PUT_GLYPH : + valid_upto(_max.classes, uint16(bc[0]<< 8) | bc[1]); ++ test_context(); + break; + case PUSH_GLYPH_ATTR : + case PUSH_ATT_TO_GLYPH_ATTR : ++ ++_stack_depth; + valid_upto(_max.glyf_attrs, uint16(bc[0]<< 8) | bc[1]); + valid_upto(_rule_length, _pre_context + int8(bc[2])); + break; + default: + failure(invalid_opcode); + break; + } + +@@ -410,62 +476,77 @@ void Machine::Code::decoder::analyse_opc + switch (opc) + { + case DELETE : + _code._delete = true; + break; + case PUT_GLYPH_8BIT_OBS : + case PUT_GLYPH : + _code._modify = true; +- _analysis.set_changed(_analysis.slotref); ++ _analysis.set_changed(0); ++ break; ++ case ATTR_SET : ++ case ATTR_ADD : ++ case ATTR_SET_SLOT : ++ case IATTR_SET_SLOT : ++ case IATTR_SET : ++ case IATTR_ADD : ++ case IATTR_SUB : ++ _analysis.set_noref(0); + break; + case NEXT : + case COPY_NEXT : + if (!_analysis.contexts[_analysis.slotref].flags.inserted) + ++_analysis.slotref; + _analysis.contexts[_analysis.slotref] = context(_code._instr_count+1); +- if (_analysis.slotref > _analysis.max_ref) _analysis.max_ref = _analysis.slotref; ++ // if (_analysis.slotref > _analysis.max_ref) _analysis.max_ref = _analysis.slotref; + break; + case INSERT : + _analysis.contexts[_analysis.slotref].flags.inserted = true; + _code._modify = true; + break; + case PUT_SUBS_8BIT_OBS : // slotref on 1st parameter + case PUT_SUBS : + _code._modify = true; +- _analysis.set_changed(_analysis.slotref); ++ _analysis.set_changed(0); ++ GR_FALLTHROUGH; + // no break + case PUT_COPY : + { +- if (arg[0] != 0) { _analysis.set_changed(_analysis.slotref); _code._modify = true; } ++ if (arg[0] != 0) { _analysis.set_changed(0); _code._modify = true; } + if (arg[0] <= 0 && -arg[0] <= _analysis.slotref - _analysis.contexts[_analysis.slotref].flags.inserted) +- _analysis.set_ref(_analysis.slotref + arg[0] - _analysis.contexts[_analysis.slotref].flags.inserted); +- else if (_analysis.slotref + arg[0] > _analysis.max_ref) _analysis.max_ref = _analysis.slotref + arg[0]; ++ _analysis.set_ref(arg[0], true); ++ else if (arg[0] > 0) ++ _analysis.set_ref(arg[0], true); + break; + } + case PUSH_ATT_TO_GATTR_OBS : // slotref on 2nd parameter + if (_code._constraint) return; ++ GR_FALLTHROUGH; + // no break + case PUSH_GLYPH_ATTR_OBS : + case PUSH_SLOT_ATTR : + case PUSH_GLYPH_METRIC : + case PUSH_ATT_TO_GLYPH_METRIC : + case PUSH_ISLOT_ATTR : + case PUSH_FEAT : + if (arg[1] <= 0 && -arg[1] <= _analysis.slotref - _analysis.contexts[_analysis.slotref].flags.inserted) +- _analysis.set_ref(_analysis.slotref + arg[1] - _analysis.contexts[_analysis.slotref].flags.inserted); +- else if (_analysis.slotref + arg[1] > _analysis.max_ref) _analysis.max_ref = _analysis.slotref + arg[1]; ++ _analysis.set_ref(arg[1], true); ++ else if (arg[1] > 0) ++ _analysis.set_ref(arg[1], true); + break; + case PUSH_ATT_TO_GLYPH_ATTR : + if (_code._constraint) return; ++ GR_FALLTHROUGH; + // no break + case PUSH_GLYPH_ATTR : + if (arg[2] <= 0 && -arg[2] <= _analysis.slotref - _analysis.contexts[_analysis.slotref].flags.inserted) +- _analysis.set_ref(_analysis.slotref + arg[2] - _analysis.contexts[_analysis.slotref].flags.inserted); +- else if (_analysis.slotref + arg[2] > _analysis.max_ref) _analysis.max_ref = _analysis.slotref + arg[2]; ++ _analysis.set_ref(arg[2], true); ++ else if (arg[2] > 0) ++ _analysis.set_ref(arg[2], true); + break; + case ASSOC : // slotrefs in varargs + break; + default: + break; + } + } + +@@ -494,32 +575,41 @@ bool Machine::Code::decoder::emit_opcode + _code._data_size += param_sz; + } + + // recursively decode a context item so we can split the skip into + // instruction and data portions. + if (opc == CNTXT_ITEM) + { + assert(_pre_context == 0); ++ _in_ctxt_item = true; + _pre_context = _max.pre_context + int8(_data[-2]); + _rule_length = _max.rule_length; + + const size_t ctxt_start = _code._instr_count; + byte & instr_skip = _data[-1]; + byte & data_skip = *_data++; + ++_code._data_size; ++ const byte *curr_end = _max.bytecode; + + if (load(bc, bc + instr_skip)) + { + bc += instr_skip; + data_skip = instr_skip - (_code._instr_count - ctxt_start); + instr_skip = _code._instr_count - ctxt_start; ++ _max.bytecode = curr_end; + + _rule_length = 1; + _pre_context = 0; ++ _in_ctxt_item = false; ++ } ++ else ++ { ++ _pre_context = 0; ++ return false; + } + } + + return bool(_code); + } + + + void Machine::Code::decoder::apply_analysis(instr * const code, instr * code_end) +@@ -533,87 +623,115 @@ void Machine::Code::decoder::apply_analy + { + if (!c->flags.referenced || !c->flags.changed) continue; + + instr * const tip = code + c->codeRef + tempcount; + memmove(tip+1, tip, (code_end - tip) * sizeof(instr)); + *tip = temp_copy; + ++code_end; + ++tempcount; ++ _code._delete = true; + } + + _code._instr_count = code_end - code; + } + + + inline + bool Machine::Code::decoder::validate_opcode(const opcode opc, const byte * const bc) + { + if (opc >= MAX_OPCODE) + { + failure(invalid_opcode); + return false; + } + const opcode_t & op = Machine::getOpcodeTable()[opc]; ++ if (op.param_sz == VARARGS && bc >= _max.bytecode) ++ { ++ failure(arguments_exhausted); ++ return false; ++ } + const size_t param_sz = op.param_sz == VARARGS ? bc[0] + 1 : op.param_sz; +- if (bc + param_sz > _max.bytecode) ++ if (bc - 1 + param_sz >= _max.bytecode) + { + failure(arguments_exhausted); + return false; + } + return true; + } + + + bool Machine::Code::decoder::valid_upto(const uint16 limit, const uint16 x) const throw() + { + const bool t = x < limit; + if (!t) failure(out_of_range_data); + return t; + } + ++bool Machine::Code::decoder::test_context() const throw() ++{ ++ if (_pre_context >= _rule_length) ++ { ++ failure(out_of_range_data); ++ return false; ++ } ++ return true; ++} + + inline + void Machine::Code::failure(const status_t s) throw() { + release_buffers(); + _status = s; + } + + + inline +-void Machine::Code::decoder::analysis::set_ref(const int index) throw() { +- contexts[index].flags.referenced = true; +- if (index > max_ref) max_ref = index; ++void Machine::Code::decoder::analysis::set_ref(int index, bool incinsert) throw() { ++ if (incinsert && contexts[slotref].flags.inserted) --index; ++ if (index + slotref < 0) return; ++ contexts[index + slotref].flags.referenced = true; ++ if ((index > 0 || !contexts[index + slotref].flags.inserted) && index + slotref > max_ref) max_ref = index + slotref; + } + + + inline +-void Machine::Code::decoder::analysis::set_changed(const int index) throw() { +- contexts[index].flags.changed = true; +- if (index > max_ref) max_ref = index; ++void Machine::Code::decoder::analysis::set_noref(int index) throw() { ++ if (contexts[slotref].flags.inserted) --index; ++ if (index + slotref < 0) return; ++ if ((index > 0 || !contexts[index + slotref].flags.inserted) && index + slotref > max_ref) max_ref = index + slotref; ++} ++ ++ ++inline ++void Machine::Code::decoder::analysis::set_changed(int index) throw() { ++ if (contexts[slotref].flags.inserted) --index; ++ if (index + slotref < 0) return; ++ contexts[index + slotref].flags.changed = true; ++ if ((index > 0 || !contexts[index + slotref].flags.inserted) && index + slotref > max_ref) max_ref = index + slotref; + } + + + void Machine::Code::release_buffers() throw() + { +- free(_code); +- free(_data); ++ if (_own) ++ free(_code); + _code = 0; + _data = 0; + _own = false; + } + + + int32 Machine::Code::run(Machine & m, slotref * & map) const + { +- assert(_own); ++// assert(_own); + assert(*this); // Check we are actually runnable + +- if (m.slotMap().size() <= size_t(_max_ref + m.slotMap().context())) ++ if (m.slotMap().size() <= size_t(_max_ref + m.slotMap().context()) ++ || m.slotMap()[_max_ref + m.slotMap().context()] == 0) + { + m._status = Machine::slot_offset_out_bounds; +-// return (m.slotMap().end() - map); + return 1; ++// return m.run(_code, _data, map); + } + + return m.run(_code, _data, map); + } + +diff --git a/gfx/graphite2/src/Collider.cpp b/gfx/graphite2/src/Collider.cpp +new file mode 100644 +--- /dev/null ++++ b/gfx/graphite2/src/Collider.cpp +@@ -0,0 +1,1088 @@ ++/* GRAPHITE2 LICENSING ++ ++ Copyright 2010, SIL International ++ All rights reserved. ++ ++ This library is free software; you can redistribute it and/or modify ++ it under the terms of the GNU Lesser General Public License as published ++ by the Free Software Foundation; either version 2.1 of License, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ Lesser General Public License for more details. ++ ++ You should also have received a copy of the GNU Lesser General Public ++ License along with this library in the file named "LICENSE". ++ If not, write to the Free Software Foundation, 51 Franklin Street, ++ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the ++ internet at http://www.fsf.org/licenses/lgpl.html. ++ ++Alternatively, the contents of this file may be used under the terms of the ++Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public ++License, as published by the Free Software Foundation, either version 2 ++of the License or (at your option) any later version. ++*/ ++#include <algorithm> ++#include <limits> ++#include <math.h> ++#include <string> ++#include <functional> ++#include "inc/Collider.h" ++#include "inc/Segment.h" ++#include "inc/Slot.h" ++#include "inc/GlyphCache.h" ++#include "inc/Sparse.h" ++ ++#define ISQRT2 0.707106781f ++ ++// Possible rounding error for subbox boundaries: 0.016 = 1/64 = 1/256 * 4 ++// (values in font range from 0..256) ++// #define SUBBOX_RND_ERR 0.016 ++ ++using namespace graphite2; ++ ++//// SHIFT-COLLIDER //// ++ ++// Initialize the Collider to hold the basic movement limits for the ++// target slot, the one we are focusing on fixing. ++bool ShiftCollider::initSlot(Segment *seg, Slot *aSlot, const Rect &limit, float margin, float marginWeight, ++ const Position &currShift, const Position &currOffset, int dir, GR_MAYBE_UNUSED json * const dbgout) ++{ ++ int i; ++ float mx, mn; ++ float a, shift; ++ const GlyphCache &gc = seg->getFace()->glyphs(); ++ unsigned short gid = aSlot->gid(); ++ if (!gc.check(gid)) ++ return false; ++ const BBox &bb = gc.getBoundingBBox(gid); ++ const SlantBox &sb = gc.getBoundingSlantBox(gid); ++ //float sx = aSlot->origin().x + currShift.x; ++ //float sy = aSlot->origin().y + currShift.y; ++ if (currOffset.x != 0.f || currOffset.y != 0.f) ++ _limit = Rect(limit.bl - currOffset, limit.tr - currOffset); ++ else ++ _limit = limit; ++ // For a ShiftCollider, these indices indicate which vector we are moving by: ++ // each _ranges represents absolute space with respect to the origin of the slot. Thus take into account true origins but subtract the vmin for the slot ++ for (i = 0; i < 4; ++i) ++ { ++ switch (i) { ++ case 0 : // x direction ++ mn = _limit.bl.x + currOffset.x; ++ mx = _limit.tr.x + currOffset.x; ++ _len[i] = bb.xa - bb.xi; ++ a = currOffset.y + currShift.y; ++ _ranges[i].initialise<XY>(mn, mx, margin, marginWeight, a); ++ break; ++ case 1 : // y direction ++ mn = _limit.bl.y + currOffset.y; ++ mx = _limit.tr.y + currOffset.y; ++ _len[i] = bb.ya - bb.yi; ++ a = currOffset.x + currShift.x; ++ _ranges[i].initialise<XY>(mn, mx, margin, marginWeight, a); ++ break; ++ case 2 : // sum (negatively sloped diagonal boundaries) ++ // pick closest x,y limit boundaries in s direction ++ shift = currOffset.x + currOffset.y + currShift.x + currShift.y; ++ mn = -2 * min(currShift.x - _limit.bl.x, currShift.y - _limit.bl.y) + shift; ++ mx = 2 * min(_limit.tr.x - currShift.x, _limit.tr.y - currShift.y) + shift; ++ _len[i] = sb.sa - sb.si; ++ a = currOffset.x - currOffset.y + currShift.x - currShift.y; ++ _ranges[i].initialise<SD>(mn, mx, margin / ISQRT2, marginWeight, a); ++ break; ++ case 3 : // diff (positively sloped diagonal boundaries) ++ // pick closest x,y limit boundaries in d direction ++ shift = currOffset.x - currOffset.y + currShift.x - currShift.y; ++ mn = -2 * min(currShift.x - _limit.bl.x, _limit.tr.y - currShift.y) + shift; ++ mx = 2 * min(_limit.tr.x - currShift.x, currShift.y - _limit.bl.y) + shift; ++ _len[i] = sb.da - sb.di; ++ a = currOffset.x + currOffset.y + currShift.x + currShift.y; ++ _ranges[i].initialise<SD>(mn, mx, margin / ISQRT2, marginWeight, a); ++ break; ++ } ++ } ++ ++ _target = aSlot; ++ if ((dir & 1) == 0) ++ { ++ // For LTR, switch and negate x limits. ++ _limit.bl.x = -1 * limit.tr.x; ++ //_limit.tr.x = -1 * limit.bl.x; ++ } ++ _currOffset = currOffset; ++ _currShift = currShift; ++ _origin = aSlot->origin() - currOffset; // the original anchor position of the glyph ++ ++ _margin = margin; ++ _marginWt = marginWeight; ++ ++ SlotCollision *c = seg->collisionInfo(aSlot); ++ _seqClass = c->seqClass(); ++ _seqProxClass = c->seqProxClass(); ++ _seqOrder = c->seqOrder(); ++ return true; ++} ++ ++template <class O> ++float sdm(float vi, float va, float mx, float my, O op) ++{ ++ float res = 2 * mx - vi; ++ if (op(res, vi + 2 * my)) ++ { ++ res = va + 2 * my; ++ if (op(res, 2 * mx - va)) ++ res = mx + my; ++ } ++ return res; ++} ++ ++// Mark an area with a cost that can vary along the x or y axis. The region is expressed in terms of the centre of the target glyph in each axis ++void ShiftCollider::addBox_slope(bool isx, const Rect &box, const BBox &bb, const SlantBox &sb, const Position &org, float weight, float m, bool minright, int axis) ++{ ++ float a, c; ++ switch (axis) { ++ case 0 : ++ if (box.bl.y < org.y + bb.ya && box.tr.y > org.y + bb.yi && box.width() > 0) ++ { ++ a = org.y + 0.5f * (bb.yi + bb.ya); ++ c = 0.5f * (bb.xi + bb.xa); ++ if (isx) ++ _ranges[axis].weighted<XY>(box.bl.x - c, box.tr.x - c, weight, a, m, ++ (minright ? box.tr.x : box.bl.x) - c, a, 0, false); ++ else ++ _ranges[axis].weighted<XY>(box.bl.x - c, box.tr.x - c, weight, a, 0, 0, org.y, ++ m * (a * a + sqr((minright ? box.tr.y : box.bl.y) - 0.5f * (bb.yi + bb.ya))), false); ++ } ++ break; ++ case 1 : ++ if (box.bl.x < org.x + bb.xa && box.tr.x > org.x + bb.xi && box.height() > 0) ++ { ++ a = org.x + 0.5f * (bb.xi + bb.xa); ++ c = 0.5f * (bb.yi + bb.ya); ++ if (isx) ++ _ranges[axis].weighted<XY>(box.bl.y - c, box.tr.y - c, weight, a, 0, 0, org.x, ++ m * (a * a + sqr((minright ? box.tr.x : box.bl.x) - 0.5f * (bb.xi + bb.xa))), false); ++ else ++ _ranges[axis].weighted<XY>(box.bl.y - c, box.tr.y - c, weight, a, m, ++ (minright ? box.tr.y : box.bl.y) - c, a, 0, false); ++ } ++ break; ++ case 2 : ++ if (box.bl.x - box.tr.y < org.x - org.y + sb.da && box.tr.x - box.bl.y > org.x - org.y + sb.di) ++ { ++ float d = org.x - org.y + 0.5f * (sb.di + sb.da); ++ c = 0.5f * (sb.si + sb.sa); ++ float smax = min(2 * box.tr.x - d, 2 * box.tr.y + d); ++ float smin = max(2 * box.bl.x - d, 2 * box.bl.y + d); ++ if (smin > smax) return; ++ float si; ++ a = d; ++ if (isx) ++ si = 2 * (minright ? box.tr.x : box.bl.x) - a; ++ else ++ si = 2 * (minright ? box.tr.y : box.bl.y) + a; ++ _ranges[axis].weighted<SD>(smin - c, smax - c, weight / 2, a, m / 2, si, 0, 0, isx); ++ } ++ break; ++ case 3 : ++ if (box.bl.x + box.bl.y < org.x + org.y + sb.sa && box.tr.x + box.tr.y > org.x + org.y + sb.si) ++ { ++ float s = org.x + org.y + 0.5f * (sb.si + sb.sa); ++ c = 0.5f * (sb.di + sb.da); ++ float dmax = min(2 * box.tr.x - s, s - 2 * box.bl.y); ++ float dmin = max(2 * box.bl.x - s, s - 2 * box.tr.y); ++ if (dmin > dmax) return; ++ float di; ++ a = s; ++ if (isx) ++ di = 2 * (minright ? box.tr.x : box.bl.x) - a; ++ else ++ di = 2 * (minright ? box.tr.y : box.bl.y) + a; ++ _ranges[axis].weighted<SD>(dmin - c, dmax - c, weight / 2, a, m / 2, di, 0, 0, !isx); ++ } ++ break; ++ default : ++ break; ++ } ++ return; ++} ++ ++// Mark an area with an absolute cost, making it completely inaccessible. ++inline void ShiftCollider::removeBox(const Rect &box, const BBox &bb, const SlantBox &sb, const Position &org, int axis) ++{ ++ float c; ++ switch (axis) { ++ case 0 : ++ if (box.bl.y < org.y + bb.ya && box.tr.y > org.y + bb.yi && box.width() > 0) ++ { ++ c = 0.5f * (bb.xi + bb.xa); ++ _ranges[axis].exclude(box.bl.x - c, box.tr.x - c); ++ } ++ break; ++ case 1 : ++ if (box.bl.x < org.x + bb.xa && box.tr.x > org.x + bb.xi && box.height() > 0) ++ { ++ c = 0.5f * (bb.yi + bb.ya); ++ _ranges[axis].exclude(box.bl.y - c, box.tr.y - c); ++ } ++ break; ++ case 2 : ++ if (box.bl.x - box.tr.y < org.x - org.y + sb.da && box.tr.x - box.bl.y > org.x - org.y + sb.di ++ && box.width() > 0 && box.height() > 0) ++ { ++ float di = org.x - org.y + sb.di; ++ float da = org.x - org.y + sb.da; ++ float smax = sdm(di, da, box.tr.x, box.tr.y, std::greater<float>()); ++ float smin = sdm(da, di, box.bl.x, box.bl.y, std::less<float>()); ++ c = 0.5f * (sb.si + sb.sa); ++ _ranges[axis].exclude(smin - c, smax - c); ++ } ++ break; ++ case 3 : ++ if (box.bl.x + box.bl.y < org.x + org.y + sb.sa && box.tr.x + box.tr.y > org.x + org.y + sb.si ++ && box.width() > 0 && box.height() > 0) ++ { ++ float si = org.x + org.y + sb.si; ++ float sa = org.x + org.y + sb.sa; ++ float dmax = sdm(si, sa, box.tr.x, -box.bl.y, std::greater<float>()); ++ float dmin = sdm(sa, si, box.bl.x, -box.tr.y, std::less<float>()); ++ c = 0.5f * (sb.di + sb.da); ++ _ranges[axis].exclude(dmin - c, dmax - c); ++ } ++ break; ++ default : ++ break; ++ } ++ return; ++} ++ ++// Adjust the movement limits for the target to avoid having it collide ++// with the given neighbor slot. Also determine if there is in fact a collision ++// between the target and the given slot. ++bool ShiftCollider::mergeSlot(Segment *seg, Slot *slot, const Position &currShift, ++ bool isAfter, // slot is logically after _target ++ bool sameCluster, bool &hasCol, bool isExclusion, ++ GR_MAYBE_UNUSED json * const dbgout ) ++{ ++ bool isCol = false; ++ const float sx = slot->origin().x - _origin.x + currShift.x; ++ const float sy = slot->origin().y - _origin.y + currShift.y; ++ const float sd = sx - sy; ++ const float ss = sx + sy; ++ float vmin, vmax; ++ float omin, omax, otmin, otmax; ++ float cmin, cmax; // target limits ++ float torg; ++ const GlyphCache &gc = seg->getFace()->glyphs(); ++ const unsigned short gid = slot->gid(); ++ if (!gc.check(gid)) ++ return false; ++ const BBox &bb = gc.getBoundingBBox(gid); ++ ++ SlotCollision * cslot = seg->collisionInfo(slot); ++ int orderFlags = 0; ++ bool sameClass = _seqProxClass == 0 && cslot->seqClass() == _seqClass; ++ if (sameCluster && _seqClass ++ && (sameClass || (_seqProxClass != 0 && cslot->seqClass() == _seqProxClass))) ++ // Force the target glyph to be in the specified direction from the slot we're testing. ++ orderFlags = _seqOrder; ++ ++ // short circuit if only interested in direct collision and we are out of range ++ if (orderFlags || (sx + bb.xa + _margin >= _limit.bl.x && sx + bb.xi - _margin <= _limit.tr.x) ++ || (sy + bb.ya + _margin >= _limit.bl.y && sy + bb.yi - _margin <= _limit.tr.y)) ++ ++ { ++ const float tx = _currOffset.x + _currShift.x; ++ const float ty = _currOffset.y + _currShift.y; ++ const float td = tx - ty; ++ const float ts = tx + ty; ++ const SlantBox &sb = gc.getBoundingSlantBox(gid); ++ const unsigned short tgid = _target->gid(); ++ const BBox &tbb = gc.getBoundingBBox(tgid); ++ const SlantBox &tsb = gc.getBoundingSlantBox(tgid); ++ float seq_above_wt = cslot->seqAboveWt(); ++ float seq_below_wt = cslot->seqBelowWt(); ++ float seq_valign_wt = cslot->seqValignWt(); ++ // if isAfter, invert orderFlags for diagonal orders. ++ if (isAfter) ++ { ++ // invert appropriate bits ++ orderFlags ^= (sameClass ? 0x3F : 0x3); ++ // consider 2 bits at a time, non overlapping. If both bits set, clear them ++ orderFlags = orderFlags ^ ((((orderFlags >> 1) & orderFlags) & 0x15) * 3); ++ } ++ ++#if !defined GRAPHITE2_NTRACING ++ if (dbgout) ++ dbgout->setenv(0, slot); ++#endif ++ ++ // Process main bounding octabox. ++ for (int i = 0; i < 4; ++i) ++ { ++ switch (i) { ++ case 0 : // x direction ++ vmin = max(max(bb.xi - tbb.xa + sx, sb.di - tsb.da + ty + sd), sb.si - tsb.sa - ty + ss); ++ vmax = min(min(bb.xa - tbb.xi + sx, sb.da - tsb.di + ty + sd), sb.sa - tsb.si - ty + ss); ++ otmin = tbb.yi + ty; ++ otmax = tbb.ya + ty; ++ omin = bb.yi + sy; ++ omax = bb.ya + sy; ++ torg = _currOffset.x; ++ cmin = _limit.bl.x + torg; ++ cmax = _limit.tr.x - tbb.xi + tbb.xa + torg; ++ break; ++ case 1 : // y direction ++ vmin = max(max(bb.yi - tbb.ya + sy, tsb.di - sb.da + tx - sd), sb.si - tsb.sa - tx + ss); ++ vmax = min(min(bb.ya - tbb.yi + sy, tsb.da - sb.di + tx - sd), sb.sa - tsb.si - tx + ss); ++ otmin = tbb.xi + tx; ++ otmax = tbb.xa + tx; ++ omin = bb.xi + sx; ++ omax = bb.xa + sx; ++ torg = _currOffset.y; ++ cmin = _limit.bl.y + torg; ++ cmax = _limit.tr.y - tbb.yi + tbb.ya + torg; ++ break; ++ case 2 : // sum - moving along the positively-sloped vector, so the boundaries are the ++ // negatively-sloped boundaries. ++ vmin = max(max(sb.si - tsb.sa + ss, 2 * (bb.yi - tbb.ya + sy) + td), 2 * (bb.xi - tbb.xa + sx) - td); ++ vmax = min(min(sb.sa - tsb.si + ss, 2 * (bb.ya - tbb.yi + sy) + td), 2 * (bb.xa - tbb.xi + sx) - td); ++ otmin = tsb.di + td; ++ otmax = tsb.da + td; ++ omin = sb.di + sd; ++ omax = sb.da + sd; ++ torg = _currOffset.x + _currOffset.y; ++ cmin = _limit.bl.x + _limit.bl.y + torg; ++ cmax = _limit.tr.x + _limit.tr.y - tsb.si + tsb.sa + torg; ++ break; ++ case 3 : // diff - moving along the negatively-sloped vector, so the boundaries are the ++ // positively-sloped boundaries. ++ vmin = max(max(sb.di - tsb.da + sd, 2 * (bb.xi - tbb.xa + sx) - ts), -2 * (bb.ya - tbb.yi + sy) + ts); ++ vmax = min(min(sb.da - tsb.di + sd, 2 * (bb.xa - tbb.xi + sx) - ts), -2 * (bb.yi - tbb.ya + sy) + ts); ++ otmin = tsb.si + ts; ++ otmax = tsb.sa + ts; ++ omin = sb.si + ss; ++ omax = sb.sa + ss; ++ torg = _currOffset.x - _currOffset.y; ++ cmin = _limit.bl.x - _limit.tr.y + torg; ++ cmax = _limit.tr.x - _limit.bl.y - tsb.di + tsb.da + torg; ++ break; ++ default : ++ continue; ++ } ++ ++#if !defined GRAPHITE2_NTRACING ++ if (dbgout) ++ dbgout->setenv(1, reinterpret_cast<void *>(-1)); ++#define DBGTAG(x) if (dbgout) dbgout->setenv(1, reinterpret_cast<void *>(-x)); ++#else ++#define DBGTAG(x) ++#endif ++ ++ if (orderFlags) ++ { ++ Position org(tx, ty); ++ float xminf = _limit.bl.x + _currOffset.x + tbb.xi; ++ float xpinf = _limit.tr.x + _currOffset.x + tbb.xa; ++ float ypinf = _limit.tr.y + _currOffset.y + tbb.ya; ++ float yminf = _limit.bl.y + _currOffset.y + tbb.yi; ++ switch (orderFlags) { ++ case SlotCollision::SEQ_ORDER_RIGHTUP : ++ { ++ float r1Xedge = cslot->seqAboveXoff() + 0.5f * (bb.xi + bb.xa) + sx; ++ float r3Xedge = cslot->seqBelowXlim() + bb.xa + sx + 0.5f * (tbb.xa - tbb.xi); ++ float r2Yedge = 0.5f * (bb.yi + bb.ya) + sy; ++ ++ // DBGTAG(1x) means the regions are up and right ++ // region 1 ++ DBGTAG(11) ++ addBox_slope(true, Rect(Position(xminf, r2Yedge), Position(r1Xedge, ypinf)), ++ tbb, tsb, org, 0, seq_above_wt, true, i); ++ // region 2 ++ DBGTAG(12) ++ removeBox(Rect(Position(xminf, yminf), Position(r3Xedge, r2Yedge)), tbb, tsb, org, i); ++ // region 3, which end is zero is irrelevant since m weight is 0 ++ DBGTAG(13) ++ addBox_slope(true, Rect(Position(r3Xedge, yminf), Position(xpinf, r2Yedge - cslot->seqValignHt())), ++ tbb, tsb, org, seq_below_wt, 0, true, i); ++ // region 4 ++ DBGTAG(14) ++ addBox_slope(false, Rect(Position(sx + bb.xi, r2Yedge), Position(xpinf, r2Yedge + cslot->seqValignHt())), ++ tbb, tsb, org, 0, seq_valign_wt, true, i); ++ // region 5 ++ DBGTAG(15) ++ addBox_slope(false, Rect(Position(sx + bb.xi, r2Yedge - cslot->seqValignHt()), Position(xpinf, r2Yedge)), ++ tbb, tsb, org, seq_below_wt, seq_valign_wt, false, i); ++ break; ++ } ++ case SlotCollision::SEQ_ORDER_LEFTDOWN : ++ { ++ float r1Xedge = 0.5f * (bb.xi + bb.xa) + cslot->seqAboveXoff() + sx; ++ float r3Xedge = bb.xi - cslot->seqBelowXlim() + sx - 0.5f * (tbb.xa - tbb.xi); ++ float r2Yedge = 0.5f * (bb.yi + bb.ya) + sy; ++ // DBGTAG(2x) means the regions are up and right ++ // region 1 ++ DBGTAG(21) ++ addBox_slope(true, Rect(Position(r1Xedge, yminf), Position(xpinf, r2Yedge)), ++ tbb, tsb, org, 0, seq_above_wt, false, i); ++ // region 2 ++ DBGTAG(22) ++ removeBox(Rect(Position(r3Xedge, r2Yedge), Position(xpinf, ypinf)), tbb, tsb, org, i); ++ // region 3 ++ DBGTAG(23) ++ addBox_slope(true, Rect(Position(xminf, r2Yedge - cslot->seqValignHt()), Position(r3Xedge, ypinf)), ++ tbb, tsb, org, seq_below_wt, 0, false, i); ++ // region 4 ++ DBGTAG(24) ++ addBox_slope(false, Rect(Position(xminf, r2Yedge), Position(sx + bb.xa, r2Yedge + cslot->seqValignHt())), ++ tbb, tsb, org, 0, seq_valign_wt, true, i); ++ // region 5 ++ DBGTAG(25) ++ addBox_slope(false, Rect(Position(xminf, r2Yedge - cslot->seqValignHt()), ++ Position(sx + bb.xa, r2Yedge)), tbb, tsb, org, seq_below_wt, seq_valign_wt, false, i); ++ break; ++ } ++ case SlotCollision::SEQ_ORDER_NOABOVE : // enforce neighboring glyph being above ++ DBGTAG(31); ++ removeBox(Rect(Position(bb.xi - tbb.xa + sx, sy + bb.ya), ++ Position(bb.xa - tbb.xi + sx, ypinf)), tbb, tsb, org, i); ++ break; ++ case SlotCollision::SEQ_ORDER_NOBELOW : // enforce neighboring glyph being below ++ DBGTAG(32); ++ removeBox(Rect(Position(bb.xi - tbb.xa + sx, yminf), ++ Position(bb.xa - tbb.xi + sx, sy + bb.yi)), tbb, tsb, org, i); ++ break; ++ case SlotCollision::SEQ_ORDER_NOLEFT : // enforce neighboring glyph being to the left ++ DBGTAG(33) ++ removeBox(Rect(Position(xminf, bb.yi - tbb.ya + sy), ++ Position(bb.xi - tbb.xa + sx, bb.ya - tbb.yi + sy)), tbb, tsb, org, i); ++ break; ++ case SlotCollision::SEQ_ORDER_NORIGHT : // enforce neighboring glyph being to the right ++ DBGTAG(34) ++ removeBox(Rect(Position(bb.xa - tbb.xi + sx, bb.yi - tbb.ya + sy), ++ Position(xpinf, bb.ya - tbb.yi + sy)), tbb, tsb, org, i); ++ break; ++ default : ++ break; ++ } ++ } ++ ++ if (vmax < cmin - _margin || vmin > cmax + _margin || omax < otmin - _margin || omin > otmax + _margin) ++ continue; ++ ++ // Process sub-boxes that are defined for this glyph. ++ // We only need to do this if there was in fact a collision with the main octabox. ++ uint8 numsub = gc.numSubBounds(gid); ++ if (numsub > 0) ++ { ++ bool anyhits = false; ++ for (int j = 0; j < numsub; ++j) ++ { ++ const BBox &sbb = gc.getSubBoundingBBox(gid, j); ++ const SlantBox &ssb = gc.getSubBoundingSlantBox(gid, j); ++ switch (i) { ++ case 0 : // x ++ vmin = max(max(sbb.xi-tbb.xa+sx, ssb.di-tsb.da+sd+ty), ssb.si-tsb.sa+ss-ty); ++ vmax = min(min(sbb.xa-tbb.xi+sx, ssb.da-tsb.di+sd+ty), ssb.sa-tsb.si+ss-ty); ++ omin = sbb.yi + sy; ++ omax = sbb.ya + sy; ++ break; ++ case 1 : // y ++ vmin = max(max(sbb.yi-tbb.ya+sy, tsb.di-ssb.da-sd+tx), ssb.si-tsb.sa+ss-tx); ++ vmax = min(min(sbb.ya-tbb.yi+sy, tsb.da-ssb.di-sd+tx), ssb.sa-tsb.si+ss-tx); ++ omin = sbb.xi + sx; ++ omax = sbb.xa + sx; ++ break; ++ case 2 : // sum ++ vmin = max(max(ssb.si-tsb.sa+ss, 2*(sbb.yi-tbb.ya+sy)+td), 2*(sbb.xi-tbb.xa+sx)-td); ++ vmax = min(min(ssb.sa-tsb.si+ss, 2*(sbb.ya-tbb.yi+sy)+td), 2*(sbb.xa-tbb.xi+sx)-td); ++ omin = ssb.di + sd; ++ omax = ssb.da + sd; ++ break; ++ case 3 : // diff ++ vmin = max(max(ssb.di-tsb.da+sd, 2*(sbb.xi-tbb.xa+sx)-ts), -2*(sbb.ya-tbb.yi+sy)+ts); ++ vmax = min(min(ssb.da-tsb.di+sd, 2*(sbb.xa-tbb.xi+sx)-ts), -2*(sbb.yi-tbb.ya+sy)+ts); ++ omin = ssb.si + ss; ++ omax = ssb.sa + ss; ++ break; ++ } ++ if (vmax < cmin - _margin || vmin > cmax + _margin || omax < otmin - _margin || omin > otmax + _margin) ++ continue; ++ ++#if !defined GRAPHITE2_NTRACING ++ if (dbgout) ++ dbgout->setenv(1, reinterpret_cast<void *>(j)); ++#endif ++ if (omin > otmax) ++ _ranges[i].weightedAxis(i, vmin - _margin, vmax + _margin, 0, 0, 0, 0, 0, ++ sqr(_margin - omin + otmax) * _marginWt, false); ++ else if (omax < otmin) ++ _ranges[i].weightedAxis(i, vmin - _margin, vmax + _margin, 0, 0, 0, 0, 0, ++ sqr(_margin - otmin + omax) * _marginWt, false); ++ else ++ _ranges[i].exclude_with_margins(vmin, vmax, i); ++ anyhits = true; ++ } ++ if (anyhits) ++ isCol = true; ++ } ++ else // no sub-boxes ++ { ++#if !defined GRAPHITE2_NTRACING ++ if (dbgout) ++ dbgout->setenv(1, reinterpret_cast<void *>(-1)); ++#endif ++ isCol = true; ++ if (omin > otmax) ++ _ranges[i].weightedAxis(i, vmin - _margin, vmax + _margin, 0, 0, 0, 0, 0, ++ sqr(_margin - omin + otmax) * _marginWt, false); ++ else if (omax < otmin) ++ _ranges[i].weightedAxis(i, vmin - _margin, vmax + _margin, 0, 0, 0, 0, 0, ++ sqr(_margin - otmin + omax) * _marginWt, false); ++ else ++ _ranges[i].exclude_with_margins(vmin, vmax, i); ++ ++ } ++ } ++ } ++ bool res = true; ++ if (cslot->exclGlyph() > 0 && gc.check(cslot->exclGlyph()) && !isExclusion) ++ { ++ // Set up the bogus slot representing the exclusion glyph. ++ Slot *exclSlot = seg->newSlot(); ++ exclSlot->setGlyph(seg, cslot->exclGlyph()); ++ Position exclOrigin(slot->origin() + cslot->exclOffset()); ++ exclSlot->origin(exclOrigin); ++ res &= mergeSlot(seg, exclSlot, currShift, isAfter, sameCluster, isCol, true, dbgout ); ++ seg->freeSlot(exclSlot); ++ } ++ hasCol |= isCol; ++ return res; ++ ++} // end of ShiftCollider::mergeSlot ++ ++ ++// Figure out where to move the target glyph to, and return the amount to shift by. ++Position ShiftCollider::resolve(GR_MAYBE_UNUSED Segment *seg, bool &isCol, GR_MAYBE_UNUSED json * const dbgout) ++{ ++ float tbase; ++ float totalCost = (float)(std::numeric_limits<float>::max() / 2); ++ Position resultPos = Position(0, 0); ++#if !defined GRAPHITE2_NTRACING ++ int bestAxis = -1; ++ if (dbgout) ++ { ++ outputJsonDbgStartSlot(dbgout, seg); ++ *dbgout << "vectors" << json::array; ++ } ++#endif ++ isCol = true; ++ for (int i = 0; i < 4; ++i) ++ { ++ float bestCost = -1; ++ float bestPos; ++ // Calculate the margin depending on whether we are moving diagonally or not: ++ switch (i) { ++ case 0 : // x direction ++ tbase = _currOffset.x; ++ break; ++ case 1 : // y direction ++ tbase = _currOffset.y; ++ break; ++ case 2 : // sum (negatively-sloped diagonals) ++ tbase = _currOffset.x + _currOffset.y; ++ break; ++ case 3 : // diff (positively-sloped diagonals) ++ tbase = _currOffset.x - _currOffset.y; ++ break; ++ } ++ Position testp; ++ bestPos = _ranges[i].closest(0, bestCost) - tbase; // Get the best relative position ++#if !defined GRAPHITE2_NTRACING ++ if (dbgout) ++ outputJsonDbgOneVector(dbgout, seg, i, tbase, bestCost, bestPos) ; ++#endif ++ if (bestCost >= 0.0f) ++ { ++ isCol = false; ++ switch (i) { ++ case 0 : testp = Position(bestPos, _currShift.y); break; ++ case 1 : testp = Position(_currShift.x, bestPos); break; ++ case 2 : testp = Position(0.5f * (_currShift.x - _currShift.y + bestPos), 0.5f * (_currShift.y - _currShift.x + bestPos)); break; ++ case 3 : testp = Position(0.5f * (_currShift.x + _currShift.y + bestPos), 0.5f * (_currShift.x + _currShift.y - bestPos)); break; ++ } ++ if (bestCost < totalCost - 0.01f) ++ { ++ totalCost = bestCost; ++ resultPos = testp; ++#if !defined GRAPHITE2_NTRACING ++ bestAxis = i; ++#endif ++ } ++ } ++ } // end of loop over 4 directions ++ ++#if !defined GRAPHITE2_NTRACING ++ if (dbgout) ++ outputJsonDbgEndSlot(dbgout, resultPos, bestAxis, isCol); ++#endif ++ ++ return resultPos; ++ ++} // end of ShiftCollider::resolve ++ ++ ++#if !defined GRAPHITE2_NTRACING ++ ++void ShiftCollider::outputJsonDbg(json * const dbgout, Segment *seg, int axis) ++{ ++ int axisMax = axis; ++ if (axis < 0) // output all axes ++ { ++ *dbgout << "gid" << _target->gid() ++ << "limit" << _limit ++ << "target" << json::object ++ << "origin" << _target->origin() ++ << "margin" << _margin ++ << "bbox" << seg->theGlyphBBoxTemporary(_target->gid()) ++ << "slantbox" << seg->getFace()->glyphs().slant(_target->gid()) ++ << json::close; // target object ++ *dbgout << "ranges" << json::array; ++ axis = 0; ++ axisMax = 3; ++ } ++ for (int iAxis = axis; iAxis <= axisMax; ++iAxis) ++ { ++ *dbgout << json::flat << json::array << _ranges[iAxis].position(); ++ for (Zones::const_iterator s = _ranges[iAxis].begin(), e = _ranges[iAxis].end(); s != e; ++s) ++ *dbgout << json::flat << json::array ++ << Position(s->x, s->xm) << s->sm << s->smx << s->c ++ << json::close; ++ *dbgout << json::close; ++ } ++ if (axis < axisMax) // looped through the _ranges array for all axes ++ *dbgout << json::close; // ranges array ++} ++ ++void ShiftCollider::outputJsonDbgStartSlot(json * const dbgout, Segment *seg) ++{ ++ *dbgout << json::object // slot - not closed till the end of the caller method ++ << "slot" << objectid(dslot(seg, _target)) ++ << "gid" << _target->gid() ++ << "limit" << _limit ++ << "target" << json::object ++ << "origin" << _origin ++ << "currShift" << _currShift ++ << "currOffset" << seg->collisionInfo(_target)->offset() ++ << "bbox" << seg->theGlyphBBoxTemporary(_target->gid()) ++ << "slantBox" << seg->getFace()->glyphs().slant(_target->gid()) ++ << "fix" << "shift"; ++ *dbgout << json::close; // target object ++} ++ ++void ShiftCollider::outputJsonDbgEndSlot(GR_MAYBE_UNUSED json * const dbgout, ++ Position resultPos, int bestAxis, bool isCol) ++{ ++ *dbgout << json::close // vectors array ++ << "result" << resultPos ++ //<< "scraping" << _scraping[bestAxis] ++ << "bestAxis" << bestAxis ++ << "stillBad" << isCol ++ << json::close; // slot object ++} ++ ++void ShiftCollider::outputJsonDbgOneVector(json * const dbgout, Segment *seg, int axis, ++ float tleft, float bestCost, float bestVal) ++{ ++ const char * label; ++ switch (axis) ++ { ++ case 0: label = "x"; break; ++ case 1: label = "y"; break; ++ case 2: label = "sum (NE-SW)"; break; ++ case 3: label = "diff (NW-SE)"; break; ++ default: label = "???"; break; ++ } ++ ++ *dbgout << json::object // vector ++ << "direction" << label ++ << "targetMin" << tleft; ++ ++ outputJsonDbgRemovals(dbgout, axis, seg); ++ ++ *dbgout << "ranges"; ++ outputJsonDbg(dbgout, seg, axis); ++ ++ *dbgout << "bestCost" << bestCost ++ << "bestVal" << bestVal + tleft ++ << json::close; // vectors object ++} ++ ++void ShiftCollider::outputJsonDbgRemovals(json * const dbgout, int axis, Segment *seg) ++{ ++ *dbgout << "removals" << json::array; ++ _ranges[axis].jsonDbgOut(seg); ++ *dbgout << json::close; // removals array ++} ++ ++#endif // !defined GRAPHITE2_NTRACING ++ ++ ++//// KERN-COLLIDER //// ++ ++inline ++static float localmax (float al, float au, float bl, float bu, float x) ++{ ++ if (al < bl) ++ { if (au < bu) return au < x ? au : x; } ++ else if (au > bu) return bl < x ? bl : x; ++ return x; ++} ++ ++inline ++static float localmin(float al, float au, float bl, float bu, float x) ++{ ++ if (bl > al) ++ { if (bu > au) return bl > x ? bl : x; } ++ else if (au > bu) return al > x ? al : x; ++ return x; ++} ++ ++// Return the given edge of the glyph at height y, taking any slant box into account. ++static float get_edge(Segment *seg, const Slot *s, const Position &shift, float y, float width, bool isRight) ++{ ++ const GlyphCache &gc = seg->getFace()->glyphs(); ++ unsigned short gid = s->gid(); ++ float sx = s->origin().x + shift.x; ++ float sy = s->origin().y + shift.y; ++ uint8 numsub = gc.numSubBounds(gid); ++ float res = isRight ? (float)-1e38 : (float)1e38; ++ ++ if (numsub > 0) ++ { ++ for (int i = 0; i < numsub; ++i) ++ { ++ const BBox &sbb = gc.getSubBoundingBBox(gid, i); ++ const SlantBox &ssb = gc.getSubBoundingSlantBox(gid, i); ++ if (sy + sbb.yi > y + width / 2 || sy + sbb.ya < y - width / 2) ++ continue; ++ if (isRight) ++ { ++ float x = sx + sbb.xa; ++ if (x > res) ++ { ++ float td = sx - sy + ssb.da + y; ++ float ts = sx + sy + ssb.sa - y; ++ x = localmax(td - width / 2, td + width / 2, ts - width / 2, ts + width / 2, x); ++ if (x > res) ++ res = x; ++ } ++ } ++ else ++ { ++ float x = sx + sbb.xi; ++ if (x < res) ++ { ++ float td = sx - sy + ssb.di + y; ++ float ts = sx + sy + ssb.si - y; ++ x = localmin(td - width / 2, td + width / 2, ts - width / 2, ts + width / 2, x); ++ if (x < res) ++ res = x; ++ } ++ } ++ } ++ } ++ else ++ { ++ const BBox &bb = gc.getBoundingBBox(gid); ++ const SlantBox &sb = gc.getBoundingSlantBox(gid); ++ float td = sx - sy + y; ++ float ts = sx + sy - y; ++ if (isRight) ++ res = localmax(td + sb.da - width / 2, td + sb.da + width / 2, ts + sb.sa - width / 2, ts + sb.sa + width / 2, sx + bb.xa); ++ else ++ res = localmin(td + sb.di - width / 2, td + sb.di + width / 2, ts + sb.si - width / 2, ts + sb.si + width / 2, sx + bb.xi); ++ } ++ return res; ++} ++ ++ ++bool KernCollider::initSlot(Segment *seg, Slot *aSlot, const Rect &limit, float margin, ++ const Position &currShift, const Position &offsetPrev, int dir, ++ float ymin, float ymax, GR_MAYBE_UNUSED json * const dbgout) ++{ ++ const GlyphCache &gc = seg->getFace()->glyphs(); ++ const Slot *base = aSlot; ++ // const Slot *last = aSlot; ++ const Slot *s; ++ int numSlices; ++ while (base->attachedTo()) ++ base = base->attachedTo(); ++ if (margin < 10) margin = 10; ++ ++ _limit = limit; ++ _offsetPrev = offsetPrev; // kern from a previous pass ++ ++ // Calculate the height of the glyph and how many horizontal slices to use. ++ if (_maxy >= 1e37f) ++ { ++ _maxy = ymax; ++ _miny = ymin; ++ _sliceWidth = margin / 1.5f; ++ numSlices = int((_maxy - _miny + 2) / (_sliceWidth / 1.5f) + 1.f); // +2 helps with rounding errors ++ _edges.clear(); ++ _edges.insert(_edges.begin(), numSlices, (dir & 1) ? 1e38f : -1e38f); ++ _xbound = (dir & 1) ? (float)1e38f : (float)-1e38f; ++ } ++ else if (_maxy != ymax || _miny != ymin) ++ { ++ if (_miny != ymin) ++ { ++ numSlices = int((ymin - _miny) / _sliceWidth - 1); ++ _miny += numSlices * _sliceWidth; ++ if (numSlices < 0) ++ _edges.insert(_edges.begin(), -numSlices, (dir & 1) ? 1e38f : -1e38f); ++ else if ((unsigned)numSlices < _edges.size()) // this shouldn't fire since we always grow the range ++ { ++ Vector<float>::iterator e = _edges.begin(); ++ while (numSlices--) ++ ++e; ++ _edges.erase(_edges.begin(), e); ++ } ++ } ++ if (_maxy != ymax) ++ { ++ numSlices = int((ymax - _miny) / _sliceWidth + 1); ++ _maxy = numSlices * _sliceWidth + _miny; ++ if (numSlices > (int)_edges.size()) ++ _edges.insert(_edges.end(), numSlices - _edges.size(), (dir & 1) ? 1e38f : -1e38f); ++ else if (numSlices < (int)_edges.size()) // this shouldn't fire since we always grow the range ++ { ++ while ((int)_edges.size() > numSlices) ++ _edges.pop_back(); ++ } ++ } ++ } ++ numSlices = _edges.size(); ++ ++#if !defined GRAPHITE2_NTRACING ++ // Debugging ++ _seg = seg; ++ _slotNear.clear(); ++ _slotNear.insert(_slotNear.begin(), numSlices, NULL); ++ _nearEdges.clear(); ++ _nearEdges.insert(_nearEdges.begin(), numSlices, (dir & 1) ? -1e38f : +1e38f); ++#endif ++ ++ // Determine the trailing edge of each slice (ie, left edge for a RTL glyph). ++ for (s = base; s; s = s->nextInCluster(s)) ++ { ++ SlotCollision *c = seg->collisionInfo(s); ++ if (!gc.check(s->gid())) ++ return false; ++ const BBox &bs = gc.getBoundingBBox(s->gid()); ++ float x = s->origin().x + c->shift().x + ((dir & 1) ? bs.xi : bs.xa); ++ // Loop over slices. ++ // Note smin might not be zero if glyph s is not at the bottom of the cluster; similarly for smax. ++ float toffset = c->shift().y - _miny + 1 + s->origin().y; ++ int smin = max(0, int((bs.yi + toffset) / _sliceWidth)); ++ int smax = min(numSlices - 1, int((bs.ya + toffset) / _sliceWidth + 1)); ++ for (int i = smin; i <= smax; ++i) ++ { ++ float t; ++ float y = _miny - 1 + (i + .5f) * _sliceWidth; // vertical center of slice ++ if ((dir & 1) && x < _edges[i]) ++ { ++ t = get_edge(seg, s, c->shift(), y, _sliceWidth, false); ++ if (t < _edges[i]) ++ { ++ _edges[i] = t; ++ if (t < _xbound) ++ _xbound = t; ++ } ++ } ++ else if (!(dir & 1) && x > _edges[i]) ++ { ++ t = get_edge(seg, s, c->shift(), y, _sliceWidth, true); ++ if (t > _edges[i]) ++ { ++ _edges[i] = t; ++ if (t > _xbound) ++ _xbound = t; ++ } ++ } ++ } ++ } ++ _mingap = (float)1e38; ++ _target = aSlot; ++ _margin = margin; ++ _currShift = currShift; ++ return true; ++} // end of KernCollider::initSlot ++ ++ ++// Determine how much the target slot needs to kern away from the given slot. ++// In other words, merge information from given slot's position with what the target slot knows ++// about how it can kern. ++// Return false if we know there is no collision, true if we think there might be one. ++bool KernCollider::mergeSlot(Segment *seg, Slot *slot, const Position &currShift, float currSpace, int dir, GR_MAYBE_UNUSED json * const dbgout) ++{ ++ int rtl = (dir & 1) * 2 - 1; ++ if (!seg->getFace()->glyphs().check(slot->gid())) ++ return false; ++ const Rect &bb = seg->theGlyphBBoxTemporary(slot->gid()); ++ const float sx = slot->origin().x + currShift.x; ++ float x = sx + (rtl > 0 ? bb.tr.x : bb.bl.x); ++ // this isn't going to reduce _mingap so skip ++ if ((rtl > 0 && x < _xbound - _mingap - currSpace) || (rtl <= 0 && x > _xbound + _mingap + currSpace)) ++ return false; ++ ++ const float sy = slot->origin().y + currShift.y; ++ int smin = max(0, int((bb.bl.y + (1 - _miny + sy)) / _sliceWidth + 1)); ++ int smax = min((int)_edges.size() - 1, int((bb.tr.y + (1 - _miny + sy)) / _sliceWidth + 1)); ++ bool collides = false; ++ ++ for (int i = smin; i <= smax; ++i) ++ { ++ float t; ++ float y = (float)(_miny - 1 + (i + .5f) * _sliceWidth); // vertical center of slice ++ if (x * rtl > _edges[i] * rtl - _mingap - currSpace) ++ { ++ // 2 * currSpace to account for the space that is already separating them and the space we want to add ++ float m = get_edge(seg, slot, currShift, y, _sliceWidth, rtl > 0) + 2 * rtl * currSpace; ++ t = rtl * (_edges[i] - m); ++ // Check slices above and below (if any). ++ if (i < (int)_edges.size() - 1) t = min(t, rtl * (_edges[i+1] - m)); ++ if (i > 0) t = min(t, rtl * (_edges[i-1] - m)); ++ // _mingap is positive to shrink ++ if (t < _mingap) ++ { ++ _mingap = t; ++ collides = true; ++ } ++#if !defined GRAPHITE2_NTRACING ++ // Debugging - remember the closest neighboring edge for this slice. ++ if (rtl * m > rtl * _nearEdges[i]) ++ { ++ _slotNear[i] = slot; ++ _nearEdges[i] = m; ++ } ++#endif ++ } ++ } ++ return collides; // note that true is not a necessarily reliable value ++ ++} // end of KernCollider::mergeSlot ++ ++ ++// Return the amount to kern by. ++Position KernCollider::resolve(GR_MAYBE_UNUSED Segment *seg, GR_MAYBE_UNUSED Slot *slot, ++ int dir, float margin, GR_MAYBE_UNUSED json * const dbgout) ++{ ++ float resultNeeded = (1 - 2 * (dir & 1)) * (_mingap - margin); ++ float result = min(_limit.tr.x - _offsetPrev.x, max(resultNeeded, _limit.bl.x - _offsetPrev.x)); ++ ++#if !defined GRAPHITE2_NTRACING ++ if (dbgout) ++ { ++ *dbgout << json::object // slot ++ << "slot" << objectid(dslot(seg, _target)) ++ << "gid" << _target->gid() ++ << "margin" << _margin ++ << "limit" << _limit ++ << "miny" << _miny ++ << "maxy" << _maxy ++ << "slicewidth" << _sliceWidth ++ << "target" << json::object ++ << "origin" << _target->origin() ++ //<< "currShift" << _currShift ++ << "offsetPrev" << _offsetPrev ++ << "bbox" << seg->theGlyphBBoxTemporary(_target->gid()) ++ << "slantBox" << seg->getFace()->glyphs().slant(_target->gid()) ++ << "fix" << "kern" ++ << json::close; // target object ++ ++ *dbgout << "slices" << json::array; ++ for (int is = 0; is < (int)_edges.size(); is++) ++ { ++ *dbgout << json::flat << json::object ++ << "i" << is ++ << "targetEdge" << _edges[is] ++ << "neighbor" << objectid(dslot(seg, _slotNear[is])) ++ << "nearEdge" << _nearEdges[is] ++ << json::close; ++ } ++ *dbgout << json::close; // slices array ++ ++ *dbgout ++ << "xbound" << _xbound ++ << "minGap" << _mingap ++ << "needed" << resultNeeded ++ << "result" << result ++ << "stillBad" << (result != resultNeeded) ++ << json::close; // slot object ++ } ++#endif ++ ++ return Position(result, 0.); ++ ++} // end of KernCollider::resolve ++ ++void KernCollider::shift(const Position &mv, int dir) ++{ ++ for (Vector<float>::iterator e = _edges.begin(); e != _edges.end(); ++e) ++ *e += mv.x; ++ _xbound += (1 - 2 * (dir & 1)) * mv.x; ++} ++ ++//// SLOT-COLLISION //// ++ ++// Initialize the collision attributes for the given slot. ++SlotCollision::SlotCollision(Segment *seg, Slot *slot) ++{ ++ initFromSlot(seg, slot); ++} ++ ++void SlotCollision::initFromSlot(Segment *seg, Slot *slot) ++{ ++ // Initialize slot attributes from glyph attributes. ++ // The order here must match the order in the grcompiler code, ++ // GrcSymbolTable::AssignInternalGlyphAttrIDs. ++ uint16 gid = slot->gid(); ++ uint16 aCol = seg->silf()->aCollision(); // flags attr ID ++ const GlyphFace * glyphFace = seg->getFace()->glyphs().glyphSafe(gid); ++ if (!glyphFace) ++ return; ++ const sparse &p = glyphFace->attrs(); ++ _flags = p[aCol]; ++ _limit = Rect(Position(p[aCol+1], p[aCol+2]), ++ Position(p[aCol+3], p[aCol+4])); ++ _margin = p[aCol+5]; ++ _marginWt = p[aCol+6]; ++ ++ _seqClass = p[aCol+7]; ++ _seqProxClass = p[aCol+8]; ++ _seqOrder = p[aCol+9]; ++ _seqAboveXoff = p[aCol+10]; ++ _seqAboveWt = p[aCol+11]; ++ _seqBelowXlim = p[aCol+12]; ++ _seqBelowWt = p[aCol+13]; ++ _seqValignHt = p[aCol+14]; ++ _seqValignWt = p[aCol+15]; ++ ++ // These attributes do not have corresponding glyph attribute: ++ _exclGlyph = 0; ++ _exclOffset = Position(0, 0); ++} ++ ++float SlotCollision::getKern(int dir) const ++{ ++ if ((_flags & SlotCollision::COLL_KERN) != 0) ++ return float(_shift.x * ((dir & 1) ? -1 : 1)); ++ else ++ return 0; ++} ++ +diff --git a/gfx/graphite2/src/Decompressor.cpp b/gfx/graphite2/src/Decompressor.cpp +new file mode 100644 +--- /dev/null ++++ b/gfx/graphite2/src/Decompressor.cpp +@@ -0,0 +1,113 @@ ++/* GRAPHITE2 LICENSING ++ ++ Copyright 2015, SIL International ++ All rights reserved. ++ ++ This library is free software; you can redistribute it and/or modify ++ it under the terms of the GNU Lesser General Public License as published ++ by the Free Software Foundation; either version 2.1 of License, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ Lesser General Public License for more details. ++ ++ You should also have received a copy of the GNU Lesser General Public ++ License along with this library in the file named "LICENSE". ++ If not, write to the Free Software Foundation, 51 Franklin Street, ++ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the ++ internet at http://www.fsf.org/licenses/lgpl.html. ++ ++Alternatively, the contents of this file may be used under the terms of the ++Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public ++License, as published by the Free Software Foundation, either version 2 ++of the License or (at your option) any later version. ++*/ ++#include <cassert> ++ ++#include "inc/Decompressor.h" ++#include "inc/Compression.h" ++ ++using namespace lz4; ++ ++namespace { ++ ++inline ++u32 read_literal(u8 const * &s, u8 const * const e, u32 l) { ++ if (l == 15 && s != e) ++ { ++ u8 b = 0; ++ do { l += b = *s++; } while(b==0xff && s != e); ++ } ++ return l; ++} ++ ++bool read_sequence(u8 const * &src, u8 const * const end, u8 const * &literal, u32 & literal_len, u32 & match_len, u32 & match_dist) ++{ ++ u8 const token = *src++; ++ ++ literal_len = read_literal(src, end, token >> 4); ++ literal = src; ++ src += literal_len; ++ ++ if (src > end - 2) ++ return false; ++ ++ match_dist = *src++; ++ match_dist |= *src++ << 8; ++ match_len = read_literal(src, end, token & 0xf); ++ ++ return src <= end-5; ++} ++ ++} ++ ++int lz4::decompress(void const *in, size_t in_size, void *out, size_t out_size) ++{ ++ if (out_size <= in_size || in_size < sizeof(unsigned long)+1) ++ return -1; ++ ++ u8 const * src = static_cast<u8 const *>(in), ++ * literal = 0, ++ * const src_end = src + in_size; ++ ++ u8 * dst = static_cast<u8*>(out), ++ * const dst_end = dst + out_size; ++ ++ u32 literal_len = 0, ++ match_len = 0, ++ match_dist = 0; ++ ++ while (read_sequence(src, src_end, literal, literal_len, match_len, match_dist)) ++ { ++ if (literal_len != 0) ++ { ++ // Copy in literal. At this point the last full sequence must be at ++ // least MINMATCH + 5 from the end of the output buffer. ++ if (dst + align(literal_len) > dst_end - (MINMATCH+5)) ++ return -1; ++ dst = overrun_copy(dst, literal, literal_len); ++ } ++ ++ // Copy, possibly repeating, match from earlier in the ++ // decoded output. ++ u8 const * const pcpy = dst - match_dist; ++ if (pcpy < static_cast<u8*>(out) ++ || dst + match_len + MINMATCH > dst_end - 5) ++ return -1; ++ if (dst > pcpy+sizeof(unsigned long) ++ && dst + align(match_len + MINMATCH) <= dst_end) ++ dst = overrun_copy(dst, pcpy, match_len + MINMATCH); ++ else ++ dst = safe_copy(dst, pcpy, match_len + MINMATCH); ++ } ++ ++ if (literal + literal_len > src_end ++ || dst + literal_len > dst_end) ++ return -1; ++ dst = fast_copy(dst, literal, literal_len); ++ ++ return dst - (u8*)out; ++} ++ +diff --git a/gfx/graphite2/src/Face.cpp b/gfx/graphite2/src/Face.cpp +--- a/gfx/graphite2/src/Face.cpp ++++ b/gfx/graphite2/src/Face.cpp +@@ -23,28 +23,39 @@ Alternatively, the contents of this file + Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public + License, as published by the Free Software Foundation, either version 2 + of the License or (at your option) any later version. + */ + #include <cstring> + #include "graphite2/Segment.h" + #include "inc/CmapCache.h" + #include "inc/debug.h" ++#include "inc/Decompressor.h" + #include "inc/Endian.h" + #include "inc/Face.h" + #include "inc/FileFace.h" + #include "inc/GlyphFace.h" + #include "inc/json.h" + #include "inc/SegCacheStore.h" + #include "inc/Segment.h" + #include "inc/NameTable.h" + #include "inc/Error.h" + + using namespace graphite2; + ++namespace ++{ ++enum compression ++{ ++ NONE, ++ LZ4 ++}; ++ ++} ++ + Face::Face(const void* appFaceHandle/*non-NULL*/, const gr_face_ops & ops) + : m_appFaceHandle(appFaceHandle), + m_pFileFace(NULL), + m_pGlyphFaceCache(NULL), + m_cmap(NULL), + m_pNames(NULL), + m_logger(NULL), + m_error(0), m_errcntxt(0), +@@ -79,55 +90,59 @@ float Face::default_glyph_advance(const + + bool Face::readGlyphs(uint32 faceOptions) + { + Error e; + #ifdef GRAPHITE2_TELEMETRY + telemetry::category _glyph_cat(tele.glyph); + #endif + error_context(EC_READGLYPHS); ++ m_pGlyphFaceCache = new GlyphCache(*this, faceOptions); ++ ++ if (e.test(!m_pGlyphFaceCache, E_OUTOFMEM) ++ || e.test(m_pGlyphFaceCache->numGlyphs() == 0, E_NOGLYPHS) ++ || e.test(m_pGlyphFaceCache->unitsPerEm() == 0, E_BADUPEM)) ++ { ++ return error(e); ++ } ++ + if (faceOptions & gr_face_cacheCmap) + m_cmap = new CachedCmap(*this); + else + m_cmap = new DirectCmap(*this); +- +- m_pGlyphFaceCache = new GlyphCache(*this, faceOptions); +- if (e.test(!m_pGlyphFaceCache, E_OUTOFMEM) +- || e.test(m_pGlyphFaceCache->numGlyphs() == 0, E_NOGLYPHS) +- || e.test(m_pGlyphFaceCache->unitsPerEm() == 0, E_BADUPEM) +- || e.test(!m_cmap, E_OUTOFMEM) || e.test(!*m_cmap, E_BADCMAP)) +- { ++ if (e.test(!m_cmap, E_OUTOFMEM) || e.test(!*m_cmap, E_BADCMAP)) + return error(e); +- } + + if (faceOptions & gr_face_preloadGlyphs) + nameTable(); // preload the name table along with the glyphs. + + return true; + } + + bool Face::readGraphite(const Table & silf) + { + #ifdef GRAPHITE2_TELEMETRY + telemetry::category _silf_cat(tele.silf); + #endif + Error e; + error_context(EC_READSILF); + const byte * p = silf; +- if (e.test(!p, E_NOSILF)) return error(e); ++ if (e.test(!p, E_NOSILF) || e.test(silf.size() < 20, E_BADSIZE)) return error(e); + + const uint32 version = be::read<uint32>(p); + if (e.test(version < 0x00020000, E_TOOOLD)) return error(e); + if (version >= 0x00030000) + be::skip<uint32>(p); // compilerVersion + m_numSilf = be::read<uint16>(p); ++ + be::skip<uint16>(p); // reserved + + bool havePasses = false; + m_silfs = new Silf[m_numSilf]; ++ if (e.test(!m_silfs, E_OUTOFMEM)) return error(e); + for (int i = 0; i < m_numSilf; i++) + { + error_context(EC_ASILF + (i << 8)); + const uint32 offset = be::read<uint32>(p), + next = i == m_numSilf - 1 ? silf.size() : be::peek<uint32>(p); + if (e.test(next > silf.size() || offset >= next, E_BADSIZE)) + return error(e); + +@@ -153,29 +168,38 @@ bool Face::runGraphite(Segment *seg, con + if (dbgout) + { + *dbgout << json::object + << "id" << objectid(seg) + << "passes" << json::array; + } + #endif + +- bool res = aSilf->runGraphite(seg, 0, aSilf->justificationPass(), true); ++// if ((seg->dir() & 1) != aSilf->dir()) ++// seg->reverseSlots(); ++ if ((seg->dir() & 3) == 3 && aSilf->bidiPass() == 0xFF) ++ seg->doMirror(aSilf->aMirror()); ++ bool res = aSilf->runGraphite(seg, 0, aSilf->positionPass(), true); + if (res) +- res = aSilf->runGraphite(seg, aSilf->positionPass(), aSilf->numPasses(), false); ++ { ++ seg->associateChars(0, seg->charInfoCount()); ++ if (aSilf->flags() & 0x20) ++ res &= seg->initCollisions(); ++ res &= aSilf->runGraphite(seg, aSilf->positionPass(), aSilf->numPasses(), false); ++ } + + #if !defined GRAPHITE2_NTRACING + if (dbgout) + { ++ seg->positionSlots(0, 0, 0, aSilf->dir()); + *dbgout << json::item + << json::close // Close up the passes array + << "output" << json::array; + for(Slot * s = seg->first(); s; s = s->next()) + *dbgout << dslot(seg, s); +- seg->finalise(0); // Call this here to fix up charinfo back indexes. + *dbgout << json::close + << "advance" << seg->advance() + << "chars" << json::array; + for(size_t i = 0, n = seg->charInfoCount(); i != n; ++i) + *dbgout << json::flat << *seg->charinfo(i); + *dbgout << json::close // Close up the chars array + << json::close; // Close up the segment object + } +@@ -208,17 +232,19 @@ uint16 Face::findPseudo(uint32 uid) cons + } + + uint16 Face::getGlyphMetric(uint16 gid, uint8 metric) const + { + switch (metrics(metric)) + { + case kgmetAscent : return m_ascent; + case kgmetDescent : return m_descent; +- default: return glyphs().glyph(gid)->getMetric(metric); ++ default: ++ if (gid >= glyphs().numGlyphs()) return 0; ++ return glyphs().glyph(gid)->getMetric(metric); + } + } + + void Face::takeFileFace(FileFace* pFileFace GR_MAYBE_UNUSED/*takes ownership*/) + { + #ifndef GRAPHITE2_NFILEFACE + if (m_pFileFace==pFileFace) + return; +@@ -240,30 +266,100 @@ NameTable * Face::nameTable() const + uint16 Face::languageForLocale(const char * locale) const + { + nameTable(); + if (m_pNames) + return m_pNames->getLanguageId(locale); + return 0; + } + +-Face::Table::Table(const Face & face, const Tag n) throw() +-: _f(&face) ++ ++ ++Face::Table::Table(const Face & face, const Tag n, uint32 version) throw() ++: _f(&face), _compressed(false) + { + size_t sz = 0; +- _p = reinterpret_cast<const byte *>((*_f->m_ops.get_table)(_f->m_appFaceHandle, n, &sz)); ++ _p = static_cast<const byte *>((*_f->m_ops.get_table)(_f->m_appFaceHandle, n, &sz)); + _sz = uint32(sz); ++ + if (!TtfUtil::CheckTable(n, _p, _sz)) + { + this->~Table(); // Make sure we release the table buffer even if the table filed it's checks +- _p = 0; _sz = 0; ++ return; + } ++ ++ if (be::peek<uint32>(_p) >= version) ++ decompress(); ++} ++ ++void Face::Table::releaseBuffers() ++{ ++ if (_compressed) ++ free(const_cast<byte *>(_p)); ++ else if (_p && _f->m_ops.release_table) ++ (*_f->m_ops.release_table)(_f->m_appFaceHandle, _p); ++ _p = 0; _sz = 0; + } + + Face::Table & Face::Table::operator = (const Table & rhs) throw() + { + if (_p == rhs._p) return *this; + + this->~Table(); + new (this) Table(rhs); + return *this; + } + ++Error Face::Table::decompress() ++{ ++ Error e; ++ if (e.test(_sz < 5 * sizeof(uint32), E_BADSIZE)) ++ return e; ++ byte * uncompressed_table = 0; ++ size_t uncompressed_size = 0; ++ ++ const byte * p = _p; ++ const uint32 version = be::read<uint32>(p); // Table version number. ++ ++ // The scheme is in the top 5 bits of the 1st uint32. ++ const uint32 hdr = be::read<uint32>(p); ++ switch(compression(hdr >> 27)) ++ { ++ case NONE: return e; ++ ++ case LZ4: ++ { ++ uncompressed_size = hdr & 0x07ffffff; ++ uncompressed_table = gralloc<byte>(uncompressed_size); ++ if (!e.test(!uncompressed_table, E_OUTOFMEM)) ++ // coverity[forward_null : FALSE] - uncompressed_table has been checked so can't be null ++ // coverity[checked_return : FALSE] - we test e later ++ e.test(lz4::decompress(p, _sz - 2*sizeof(uint32), uncompressed_table, uncompressed_size) != signed(uncompressed_size), E_SHRINKERFAILED); ++ break; ++ } ++ ++ default: ++ e.error(E_BADSCHEME); ++ }; ++ ++ // Check the uncompressed version number against the original. ++ if (!e) ++ // coverity[forward_null : FALSE] - uncompressed_table has already been tested so can't be null ++ // coverity[checked_return : FALSE] - we test e later ++ e.test(be::peek<uint32>(uncompressed_table) != version, E_SHRINKERFAILED); ++ ++ // Tell the provider to release the compressed form since were replacing ++ // it anyway. ++ releaseBuffers(); ++ ++ if (e) ++ { ++ free(uncompressed_table); ++ uncompressed_table = 0; ++ uncompressed_size = 0; ++ } ++ ++ _p = uncompressed_table; ++ _sz = uncompressed_size; ++ _compressed = true; ++ ++ return e; ++} +diff --git a/gfx/graphite2/src/FeatureMap.cpp b/gfx/graphite2/src/FeatureMap.cpp +--- a/gfx/graphite2/src/FeatureMap.cpp ++++ b/gfx/graphite2/src/FeatureMap.cpp +@@ -126,60 +126,61 @@ bool FeatureMap::readFeats(const Face & + unsigned short bits = 0; //to cause overflow on first Feature + + for (int i = 0, ie = m_numFeats; i != ie; i++) + { + const uint32 label = version < 0x00020000 ? be::read<uint16>(p) : be::read<uint32>(p); + const uint16 num_settings = be::read<uint16>(p); + if (version >= 0x00020000) + be::skip<uint16>(p); +- const byte * const feat_setts = feat_start + be::read<uint32>(p); ++ const uint32 settings_offset = be::read<uint32>(p); + const uint16 flags = be::read<uint16>(p), + uiName = be::read<uint16>(p); + +- if (feat_setts + num_settings * FEATURE_SETTING_SIZE > feat_end) ++ if (settings_offset > size_t(feat_end - feat_start) ++ || settings_offset + num_settings * FEATURE_SETTING_SIZE > size_t(feat_end - feat_start)) + { + free(defVals); + return false; + } + + FeatureSetting *uiSet; + uint32 maxVal; + if (num_settings != 0) + { + uiSet = gralloc<FeatureSetting>(num_settings); + if (!uiSet) + { + free(defVals); + return false; + } +- maxVal = readFeatureSettings(feat_setts, uiSet, num_settings); ++ maxVal = readFeatureSettings(feat_start + settings_offset, uiSet, num_settings); + defVals[i] = uiSet[0].value(); + } + else + { + uiSet = 0; + maxVal = 0xffffffff; + defVals[i] = 0; + } + + ::new (m_feats + i) FeatureRef (face, bits, maxVal, + label, uiName, flags, + uiSet, num_settings); + } +- m_defaultFeatures = new Features(bits/(sizeof(uint32)*8) + 1, *this); ++ new (&m_defaultFeatures) Features(bits/(sizeof(uint32)*8) + 1, *this); + m_pNamedFeats = new NameAndFeatureRef[m_numFeats]; +- if (!m_defaultFeatures || !m_pNamedFeats) ++ if (!m_pNamedFeats) + { + free(defVals); + return false; + } + for (int i = 0; i < m_numFeats; ++i) + { +- m_feats[i].applyValToFeature(defVals[i], *m_defaultFeatures); ++ m_feats[i].applyValToFeature(defVals[i], m_defaultFeatures); + m_pNamedFeats[i] = m_feats+i; + } + + free(defVals); + + qsort(m_pNamedFeats, m_numFeats, sizeof(NameAndFeatureRef), &cmpNameAndFeatures); + + return true; +@@ -209,17 +210,17 @@ bool SillMap::readSill(const Face & face + if (sill.size() < m_numLanguages * 8U + 12) return false; + + for (int i = 0; i < m_numLanguages; i++) + { + uint32 langid = be::read<uint32>(p); + uint16 numSettings = be::read<uint16>(p); + uint16 offset = be::read<uint16>(p); + if (offset + 8U * numSettings > sill.size() && numSettings > 0) return false; +- Features* feats = new Features(*m_FeatureMap.m_defaultFeatures); ++ Features* feats = new Features(m_FeatureMap.m_defaultFeatures); + if (!feats) return false; + const byte *pLSet = sill + offset; + + // Apply langauge specific settings + for (int j = 0; j < numSettings; j++) + { + uint32 name = be::read<uint32>(pLSet); + uint16 val = be::read<uint16>(pLSet); +@@ -245,17 +246,17 @@ Features* SillMap::cloneFeatures(uint32 + // the number of languages in a font is usually small e.g. 8 in Doulos + // so this loop is not very expensive + for (uint16 i = 0; i < m_numLanguages; i++) + { + if (m_langFeats[i].m_lang == langname) + return new Features(*m_langFeats[i].m_pFeatures); + } + } +- return new Features (*m_FeatureMap.m_defaultFeatures); ++ return new Features (m_FeatureMap.m_defaultFeatures); + } + + + + const FeatureRef *FeatureMap::findFeatureRef(uint32 name) const + { + NameAndFeatureRef *it; + +diff --git a/gfx/graphite2/src/FileFace.cpp b/gfx/graphite2/src/FileFace.cpp +--- a/gfx/graphite2/src/FileFace.cpp ++++ b/gfx/graphite2/src/FileFace.cpp +@@ -55,18 +55,22 @@ FileFace::FileFace(const char *filename) + if (fread(_header_tbl, 1, tbl_len, _file) != tbl_len) return; + if (!TtfUtil::CheckHeader(_header_tbl)) return; + } + + // Get the table directory + if (!TtfUtil::GetTableDirInfo(_header_tbl, tbl_offset, tbl_len)) return; + _table_dir = (TtfUtil::Sfnt::OffsetSubTable::Entry*)gralloc<char>(tbl_len); + if (fseek(_file, tbl_offset, SEEK_SET)) return; +- if (_table_dir) +- if (fread(_table_dir, 1, tbl_len, _file) != tbl_len) return; ++ if (_table_dir && fread(_table_dir, 1, tbl_len, _file) != tbl_len) ++ { ++ free(_table_dir); ++ _table_dir = NULL; ++ } ++ return; + } + + FileFace::~FileFace() + { + free(_table_dir); + free(_header_tbl); + if (_file) + fclose(_file); +@@ -78,17 +82,17 @@ const void *FileFace::get_table_fn(const + if (appFaceHandle == 0) return 0; + const FileFace & file_face = *static_cast<const FileFace *>(appFaceHandle); + + void *tbl; + size_t tbl_offset, tbl_len; + if (!TtfUtil::GetTableInfo(name, file_face._header_tbl, file_face._table_dir, tbl_offset, tbl_len)) + return 0; + +- if (tbl_offset + tbl_len > file_face._file_len ++ if (tbl_offset > file_face._file_len || tbl_len > file_face._file_len - tbl_offset + || fseek(file_face._file, tbl_offset, SEEK_SET) != 0) + return 0; + + tbl = malloc(tbl_len); + if (fread(tbl, 1, tbl_len, file_face._file) != tbl_len) + { + free(tbl); + return 0; +diff --git a/gfx/graphite2/src/GlyphCache.cpp b/gfx/graphite2/src/GlyphCache.cpp +--- a/gfx/graphite2/src/GlyphCache.cpp ++++ b/gfx/graphite2/src/GlyphCache.cpp +@@ -26,16 +26,17 @@ of the License or (at your option) any l + */ + #include "graphite2/Font.h" + + #include "inc/Main.h" + #include "inc/Face.h" //for the tags + #include "inc/GlyphCache.h" + #include "inc/GlyphFace.h" + #include "inc/Endian.h" ++#include "inc/bits.h" + + using namespace graphite2; + + namespace + { + // Iterator over version 1 or 2 glat entries which consist of a series of + // +-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+ + // v1 |k|n|v1 |v2 |...|vN | or v2 | k | n |v1 |v2 |...|vN | +@@ -56,99 +57,127 @@ namespace + if (_n == run()) advance_entry(); + return *this; + } + _glat_iterator<W> operator ++ (int) { _glat_iterator<W> tmp(*this); operator++(); return tmp; } + + // This is strictly a >= operator. A true == operator could be + // implemented that test for overlap but it would be more expensive a + // test. +- bool operator == (const _glat_iterator<W> & rhs) { return _v >= rhs._e; } ++ bool operator == (const _glat_iterator<W> & rhs) { return _v >= rhs._e - 1; } + bool operator != (const _glat_iterator<W> & rhs) { return !operator==(rhs); } + + value_type operator * () const { + return value_type(key(), be::peek<uint16>(_v)); + } + + protected: + const byte * _e, * _v; +- ptrdiff_t _n; ++ size_t _n; + }; + + typedef _glat_iterator<uint8> glat_iterator; + typedef _glat_iterator<uint16> glat2_iterator; + } + ++const SlantBox SlantBox::empty = {0,0,0,0}; ++ + + class GlyphCache::Loader + { + public: + Loader(const Face & face, const bool dumb_font); //return result indicates success. Do not use if failed. + + operator bool () const throw(); + unsigned short int units_per_em() const throw(); + unsigned short int num_glyphs() const throw(); + unsigned short int num_attrs() const throw(); ++ bool has_boxes() const throw(); + +- const GlyphFace * read_glyph(unsigned short gid, GlyphFace &) const throw(); ++ const GlyphFace * read_glyph(unsigned short gid, GlyphFace &, int *numsubs) const throw(); ++ GlyphBox * read_box(uint16 gid, GlyphBox *curr, const GlyphFace & face) const throw(); + + CLASS_NEW_DELETE; + private: + Face::Table _head, + _hhea, + _hmtx, + _glyf, + _loca, + m_pGlat, + m_pGloc; + + bool _long_fmt; ++ bool _has_boxes; + unsigned short _num_glyphs_graphics, //i.e. boundary box and advance + _num_glyphs_attributes, + _num_attrs; // number of glyph attributes per glyph + }; + + + + GlyphCache::GlyphCache(const Face & face, const uint32 face_options) + : _glyph_loader(new Loader(face, bool(face_options & gr_face_dumbRendering))), + _glyphs(_glyph_loader && *_glyph_loader ? grzeroalloc<const GlyphFace *>(_glyph_loader->num_glyphs()) : 0), ++ _boxes(_glyph_loader && _glyph_loader->has_boxes() ? grzeroalloc<GlyphBox *>(_glyph_loader->num_glyphs()) : 0), + _num_glyphs(_glyphs ? _glyph_loader->num_glyphs() : 0), + _num_attrs(_glyphs ? _glyph_loader->num_attrs() : 0), + _upem(_glyphs ? _glyph_loader->units_per_em() : 0) + { + if ((face_options & gr_face_preloadGlyphs) && _glyph_loader && _glyphs) + { ++ int numsubs = 0; + GlyphFace * const glyphs = new GlyphFace [_num_glyphs]; + if (!glyphs) + return; + + // The 0 glyph is definately required. +- _glyphs[0] = _glyph_loader->read_glyph(0, glyphs[0]); ++ _glyphs[0] = _glyph_loader->read_glyph(0, glyphs[0], &numsubs); + + // glyphs[0] has the same address as the glyphs array just allocated, + // thus assigning the &glyphs[0] to _glyphs[0] means _glyphs[0] points + // to the entire array. + const GlyphFace * loaded = _glyphs[0]; + for (uint16 gid = 1; loaded && gid != _num_glyphs; ++gid) +- _glyphs[gid] = loaded = _glyph_loader->read_glyph(gid, glyphs[gid]); ++ _glyphs[gid] = loaded = _glyph_loader->read_glyph(gid, glyphs[gid], &numsubs); + + if (!loaded) + { + _glyphs[0] = 0; + delete [] glyphs; + } ++ else if (numsubs > 0) ++ { ++ GlyphBox * boxes = (GlyphBox *)gralloc<char>(_num_glyphs * sizeof(GlyphBox) + numsubs * 8 * sizeof(float)); ++ GlyphBox * currbox = boxes; ++ ++ for (uint16 gid = 0; currbox && gid != _num_glyphs; ++gid) ++ { ++ _boxes[gid] = currbox; ++ currbox = _glyph_loader->read_box(gid, currbox, *_glyphs[gid]); ++ } ++ if (!currbox) ++ { ++ free(boxes); ++ _boxes[0] = 0; ++ } ++ } + delete _glyph_loader; + _glyph_loader = 0; + } + + if (_glyphs && glyph(0) == 0) + { + free(_glyphs); + _glyphs = 0; ++ if (_boxes) ++ { ++ free(_boxes); ++ _boxes = 0; ++ } + _num_glyphs = _num_attrs = _upem = 0; + } + } + + + GlyphCache::~GlyphCache() + { + if (_glyphs) +@@ -158,91 +187,130 @@ GlyphCache::~GlyphCache() + const GlyphFace * * g = _glyphs; + for(unsigned short n = _num_glyphs; n; --n, ++g) + delete *g; + } + else + delete [] _glyphs[0]; + free(_glyphs); + } ++ if (_boxes) ++ { ++ if (_glyph_loader) ++ { ++ GlyphBox * * g = _boxes; ++ for (uint16 n = _num_glyphs; n; --n, ++g) ++ free(*g); ++ } ++ else ++ free(_boxes[0]); ++ free(_boxes); ++ } + delete _glyph_loader; + } + + const GlyphFace *GlyphCache::glyph(unsigned short glyphid) const //result may be changed by subsequent call with a different glyphid + { + const GlyphFace * & p = _glyphs[glyphid]; + if (p == 0 && _glyph_loader) + { ++ int numsubs = 0; + GlyphFace * g = new GlyphFace(); +- if (g) p = _glyph_loader->read_glyph(glyphid, *g); ++ if (g) p = _glyph_loader->read_glyph(glyphid, *g, &numsubs); + if (!p) + { + delete g; + return *_glyphs; + } ++ if (_boxes) ++ { ++ _boxes[glyphid] = (GlyphBox *)gralloc<char>(sizeof(GlyphBox) + 8 * numsubs * sizeof(float)); ++ if (!_glyph_loader->read_box(glyphid, _boxes[glyphid], *_glyphs[glyphid])) ++ { ++ free(_boxes[glyphid]); ++ _boxes[glyphid] = 0; ++ } ++ } + } + return p; + } + + + + GlyphCache::Loader::Loader(const Face & face, const bool dumb_font) + : _head(face, Tag::head), + _hhea(face, Tag::hhea), + _hmtx(face, Tag::hmtx), + _glyf(face, Tag::glyf), + _loca(face, Tag::loca), + _long_fmt(false), ++ _has_boxes(false), + _num_glyphs_graphics(0), + _num_glyphs_attributes(0), + _num_attrs(0) + { + if (!operator bool()) + return; + + const Face::Table maxp = Face::Table(face, Tag::maxp); + if (!maxp) { _head = Face::Table(); return; } + + _num_glyphs_graphics = TtfUtil::GlyphCount(maxp); + // This will fail if the number of glyphs is wildly out of range. +- if (_glyf && TtfUtil::LocaLookup(_num_glyphs_graphics-1, _loca, _loca.size(), _head) == size_t(-1)) ++ if (_glyf && TtfUtil::LocaLookup(_num_glyphs_graphics-1, _loca, _loca.size(), _head) == size_t(-2)) + { + _head = Face::Table(); + return; + } + + if (!dumb_font) + { +- if ((m_pGlat = Face::Table(face, Tag::Glat)) == NULL ++ if ((m_pGlat = Face::Table(face, Tag::Glat, 0x00030000)) == NULL + || (m_pGloc = Face::Table(face, Tag::Gloc)) == NULL + || m_pGloc.size() < 6) + { + _head = Face::Table(); + return; + } + const byte * p = m_pGloc; +- const int version = be::read<uint32>(p); ++ int version = be::read<uint32>(p); + const uint16 flags = be::read<uint16>(p); + _num_attrs = be::read<uint16>(p); + // We can accurately calculate the number of attributed glyphs by + // subtracting the length of the attribids array (numAttribs long if present) + // and dividing by either 2 or 4 depending on shor or lonf format + _long_fmt = flags & 1; +- _num_glyphs_attributes = (m_pGloc.size() ++ int tmpnumgattrs = (m_pGloc.size() + - (p - m_pGloc) + - sizeof(uint16)*(flags & 0x2 ? _num_attrs : 0)) + / (_long_fmt ? sizeof(uint32) : sizeof(uint16)) - 1; + +- if (version != 0x00010000 ++ if (version >= 0x00020000 || tmpnumgattrs < 0 || tmpnumgattrs > 65535 + || _num_attrs == 0 || _num_attrs > 0x3000 // is this hard limit appropriate? +- || _num_glyphs_graphics > _num_glyphs_attributes) ++ || _num_glyphs_graphics > tmpnumgattrs) + { + _head = Face::Table(); + return; + } ++ ++ _num_glyphs_attributes = static_cast<unsigned short>(tmpnumgattrs); ++ p = m_pGlat; ++ version = be::read<uint32>(p); ++ if (version >= 0x00040000) // reject Glat tables that are too new ++ { ++ _head = Face::Table(); ++ return; ++ } ++ else if (version >= 0x00030000) ++ { ++ unsigned int glatflags = be::read<uint32>(p); ++ _has_boxes = glatflags & 1; ++ // delete this once the compiler is fixed ++ _has_boxes = true; ++ } + } + } + + inline + GlyphCache::Loader::operator bool () const throw() + { + return _head && _hhea && _hmtx && !(bool(_glyf) != bool(_loca)); + } +@@ -260,34 +328,44 @@ unsigned short int GlyphCache::Loader::n + } + + inline + unsigned short int GlyphCache::Loader::num_attrs() const throw() + { + return _num_attrs; + } + +-const GlyphFace * GlyphCache::Loader::read_glyph(unsigned short glyphid, GlyphFace & glyph) const throw() ++inline ++bool GlyphCache::Loader::has_boxes () const throw() ++{ ++ return _has_boxes; ++} ++ ++const GlyphFace * GlyphCache::Loader::read_glyph(unsigned short glyphid, GlyphFace & glyph, int *numsubs) const throw() + { + Rect bbox; + Position advance; + + if (glyphid < _num_glyphs_graphics) + { + int nLsb; + unsigned int nAdvWid; + if (_glyf) + { + int xMin, yMin, xMax, yMax; + size_t locidx = TtfUtil::LocaLookup(glyphid, _loca, _loca.size(), _head); + void *pGlyph = TtfUtil::GlyfLookup(_glyf, locidx, _glyf.size()); + + if (pGlyph && TtfUtil::GlyfBox(pGlyph, xMin, yMin, xMax, yMax)) ++ { ++ if ((xMin > xMax) || (yMin > yMax)) ++ return 0; + bbox = Rect(Position(static_cast<float>(xMin), static_cast<float>(yMin)), + Position(static_cast<float>(xMax), static_cast<float>(yMax))); ++ } + } + if (TtfUtil::HorMetrics(glyphid, _hmtx, _hmtx.size(), _hhea, nLsb, nAdvWid)) + advance = Position(static_cast<float>(nAdvWid), 0); + } + + if (glyphid < _num_glyphs_attributes) + { + const byte * gloc = m_pGloc; +@@ -307,35 +385,95 @@ const GlyphFace * GlyphCache::Loader::re + glocs = be::read<uint16>(gloc); + gloce = be::peek<uint16>(gloc); + } + + if (glocs >= m_pGlat.size() || gloce > m_pGlat.size()) + return 0; + + const uint32 glat_version = be::peek<uint32>(m_pGlat); ++ if (glat_version == 0x00030000) ++ { ++ const byte * p = m_pGlat + glocs; ++ uint16 bmap = be::read<uint16>(p); ++ int num = bit_set_count((uint32)bmap); ++ if (numsubs) *numsubs += num; ++ glocs += 6 + 8 * num; ++ if (glocs > gloce) ++ return 0; ++ } + if (glat_version < 0x00020000) + { + if (gloce - glocs < 2*sizeof(byte)+sizeof(uint16) + || gloce - glocs > _num_attrs*(2*sizeof(byte)+sizeof(uint16))) +- { +- return 0; +- } +- ++ return 0; + new (&glyph) GlyphFace(bbox, advance, glat_iterator(m_pGlat + glocs), glat_iterator(m_pGlat + gloce)); + } + else + { +- if (gloce - glocs < 3*sizeof(uint16) +- || gloce - glocs > _num_attrs*3*sizeof(uint16)) +- { +- return 0; +- } +- ++ if (gloce - glocs < 3*sizeof(uint16) // can a glyph have no attributes? why not? ++ || gloce - glocs > _num_attrs*3*sizeof(uint16) ++ || glocs > m_pGlat.size() - 2*sizeof(uint16)) ++ return 0; + new (&glyph) GlyphFace(bbox, advance, glat2_iterator(m_pGlat + glocs), glat2_iterator(m_pGlat + gloce)); + } +- + if (!glyph.attrs() || glyph.attrs().capacity() > _num_attrs) + return 0; + } +- + return &glyph; + } ++ ++inline float scale_to(uint8 t, float zmin, float zmax) ++{ ++ return (zmin + t * (zmax - zmin) / 255); ++} ++ ++Rect readbox(Rect &b, uint8 zxmin, uint8 zymin, uint8 zxmax, uint8 zymax) ++{ ++ return Rect(Position(scale_to(zxmin, b.bl.x, b.tr.x), scale_to(zymin, b.bl.y, b.tr.y)), ++ Position(scale_to(zxmax, b.bl.x, b.tr.x), scale_to(zymax, b.bl.y, b.tr.y))); ++} ++ ++GlyphBox * GlyphCache::Loader::read_box(uint16 gid, GlyphBox *curr, const GlyphFace & glyph) const throw() ++{ ++ if (gid >= _num_glyphs_attributes) return 0; ++ ++ const byte * gloc = m_pGloc; ++ size_t glocs = 0, gloce = 0; ++ ++ be::skip<uint32>(gloc); ++ be::skip<uint16>(gloc,2); ++ if (_long_fmt) ++ { ++ be::skip<uint32>(gloc, gid); ++ glocs = be::read<uint32>(gloc); ++ gloce = be::peek<uint32>(gloc); ++ } ++ else ++ { ++ be::skip<uint16>(gloc, gid); ++ glocs = be::read<uint16>(gloc); ++ gloce = be::peek<uint16>(gloc); ++ } ++ ++ if (glocs >= m_pGlat.size() || gloce > m_pGlat.size()) ++ return 0; ++ ++ const byte * p = m_pGlat + glocs; ++ uint16 bmap = be::read<uint16>(p); ++ int num = bit_set_count((uint32)bmap); ++ ++ Rect bbox = glyph.theBBox(); ++ Rect diamax(Position(bbox.bl.x + bbox.bl.y, bbox.bl.x - bbox.tr.y), ++ Position(bbox.tr.x + bbox.tr.y, bbox.tr.x - bbox.bl.y)); ++ Rect diabound = readbox(diamax, p[0], p[2], p[1], p[3]); ++ ::new (curr) GlyphBox(num, bmap, &diabound); ++ be::skip<uint8>(p, 4); ++ ++ for (int i = 0; i < num * 2; ++i) ++ { ++ Rect box = readbox((i & 1) ? diamax : bbox, p[0], p[2], p[1], p[3]); ++ curr->addSubBox(i >> 1, i & 1, &box); ++ be::skip<uint8>(p, 4); ++ } ++ return (GlyphBox *)((char *)(curr) + sizeof(GlyphBox) + 2 * num * sizeof(Rect)); ++} ++ +diff --git a/gfx/graphite2/src/Intervals.cpp b/gfx/graphite2/src/Intervals.cpp +new file mode 100644 +--- /dev/null ++++ b/gfx/graphite2/src/Intervals.cpp +@@ -0,0 +1,294 @@ ++/* GRAPHITE2 LICENSING ++ ++ Copyright 2010, SIL International ++ All rights reserved. ++ ++ This library is free software; you can redistribute it and/or modify ++ it under the terms of the GNU Lesser General Public License as published ++ by the Free Software Foundation; either version 2.1 of License, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ Lesser General Public License for more details. ++ ++ You should also have received a copy of the GNU Lesser General Public ++ License along with this library in the file named "LICENSE". ++ If not, write to the Free Software Foundation, 51 Franklin Street, ++ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the ++ internet at http://www.fsf.org/licenses/lgpl.html. ++ ++Alternatively, the contents of this file may be used under the terms of the ++Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public ++License, as published by the Free Software Foundation, either version 2 ++of the License or (at your option) any later version. ++*/ ++#include <algorithm> ++#include <cmath> ++#include <limits> ++ ++#include "inc/Intervals.h" ++#include "inc/Segment.h" ++#include "inc/Slot.h" ++#include "inc/debug.h" ++#include "inc/bits.h" ++ ++using namespace graphite2; ++ ++#include <cmath> ++ ++inline ++Zones::Exclusion Zones::Exclusion::split_at(float p) { ++ Exclusion r(*this); ++ r.xm = x = p; ++ return r; ++} ++ ++inline ++void Zones::Exclusion::left_trim(float p) { ++ x = p; ++} ++ ++inline ++Zones::Exclusion & Zones::Exclusion::operator += (Exclusion const & rhs) { ++ c += rhs.c; sm += rhs.sm; smx += rhs.smx; open = false; ++ return *this; ++} ++ ++inline ++uint8 Zones::Exclusion::outcode(float val) const { ++ float p = val; ++ return ((p >= xm) << 1) | (p < x); ++} ++ ++void Zones::exclude_with_margins(float xmin, float xmax, int axis) { ++ remove(xmin, xmax); ++ weightedAxis(axis, xmin-_margin_len, xmin, 0, 0, _margin_weight, xmin-_margin_len, 0, 0, false); ++ weightedAxis(axis, xmax, xmax+_margin_len, 0, 0, _margin_weight, xmax+_margin_len, 0, 0, false); ++} ++ ++namespace ++{ ++ ++inline ++bool separated(float a, float b) { ++ return a != b; ++ //return std::fabs(a-b) > std::numeric_limits<float>::epsilon(); // std::epsilon may not work. but 0.5 fails exising 64 bit tests ++ //return std::fabs(a-b) > 0.5f; ++} ++ ++} ++ ++void Zones::insert(Exclusion e) ++{ ++#if !defined GRAPHITE2_NTRACING ++ addDebug(&e); ++#endif ++ e.x = max(e.x, _pos); ++ e.xm = min(e.xm, _posm); ++ if (e.x >= e.xm) return; ++ ++ for (iterator i = _exclusions.begin(), ie = _exclusions.end(); i != ie && e.x < e.xm; ++i) ++ { ++ const uint8 oca = e.outcode(i->x), ++ ocb = e.outcode(i->xm); ++ if ((oca & ocb) != 0) continue; ++ ++ switch (oca ^ ocb) // What kind of overlap? ++ { ++ case 0: // e completely covers i ++ // split e at i.x into e1,e2 ++ // split e2 at i.mx into e2,e3 ++ // drop e1 ,i+e2, e=e3 ++ *i += e; ++ e.left_trim(i->xm); ++ break; ++ case 1: // e overlaps on the rhs of i ++ // split i at e->x into i1,i2 ++ // split e at i.mx into e1,e2 ++ // trim i1, insert i2+e1, e=e2 ++ if (!separated(i->xm, e.x)) break; ++ if (separated(i->x,e.x)) { i = _exclusions.insert(i,i->split_at(e.x)); ++i; } ++ *i += e; ++ e.left_trim(i->xm); ++ break; ++ case 2: // e overlaps on the lhs of i ++ // split e at i->x into e1,e2 ++ // split i at e.mx into i1,i2 ++ // drop e1, insert e2+i1, trim i2 ++ if (!separated(e.xm, i->x)) return; ++ if (separated(e.xm, i->xm)) i = _exclusions.insert(i,i->split_at(e.xm)); ++ *i += e; ++ return; ++ case 3: // i completely covers e ++ // split i at e.x into i1,i2 ++ // split i2 at e.mx into i2,i3 ++ // insert i1, insert e+i2 ++ if (separated(e.xm, i->xm)) i = _exclusions.insert(i,i->split_at(e.xm)); ++ i = _exclusions.insert(i, i->split_at(e.x)); ++ *++i += e; ++ return; ++ } ++ ++ ie = _exclusions.end(); ++ } ++} ++ ++ ++void Zones::remove(float x, float xm) ++{ ++#if !defined GRAPHITE2_NTRACING ++ removeDebug(x, xm); ++#endif ++ x = max(x, _pos); ++ xm = min(xm, _posm); ++ if (x >= xm) return; ++ ++ for (iterator i = _exclusions.begin(), ie = _exclusions.end(); i != ie; ++i) ++ { ++ const uint8 oca = i->outcode(x), ++ ocb = i->outcode(xm); ++ if ((oca & ocb) != 0) continue; ++ ++ switch (oca ^ ocb) // What kind of overlap? ++ { ++ case 0: // i completely covers e ++ if (separated(i->x, x)) { i = _exclusions.insert(i,i->split_at(x)); ++i; } ++ GR_FALLTHROUGH; ++ // no break ++ case 1: // i overlaps on the rhs of e ++ i->left_trim(xm); ++ return; ++ case 2: // i overlaps on the lhs of e ++ i->xm = x; ++ if (separated(i->x, i->xm)) break; ++ GR_FALLTHROUGH; ++ // no break ++ case 3: // e completely covers i ++ i = _exclusions.erase(i); ++ --i; ++ break; ++ } ++ ++ ie = _exclusions.end(); ++ } ++} ++ ++ ++Zones::const_iterator Zones::find_exclusion_under(float x) const ++{ ++ int l = 0, h = _exclusions.size(); ++ ++ while (l < h) ++ { ++ int const p = (l+h) >> 1; ++ switch (_exclusions[p].outcode(x)) ++ { ++ case 0 : return _exclusions.begin()+p; ++ case 1 : h = p; break; ++ case 2 : ++ case 3 : l = p+1; break; ++ } ++ } ++ ++ return _exclusions.begin()+l; ++} ++ ++ ++float Zones::closest(float origin, float & cost) const ++{ ++ float best_c = std::numeric_limits<float>::max(), ++ best_x = 0; ++ ++ const const_iterator start = find_exclusion_under(origin); ++ ++ // Forward scan looking for lowest cost ++ for (const_iterator i = start, ie = _exclusions.end(); i != ie; ++i) ++ if (i->track_cost(best_c, best_x, origin)) break; ++ ++ // Backward scan looking for lowest cost ++ // We start from the exclusion to the immediate left of start since we've ++ // already tested start with the right most scan above. ++ for (const_iterator i = start-1, ie = _exclusions.begin()-1; i != ie; --i) ++ if (i->track_cost(best_c, best_x, origin)) break; ++ ++ cost = (best_c == std::numeric_limits<float>::max() ? -1 : best_c); ++ return best_x; ++} ++ ++ ++// Cost and test position functions ++ ++bool Zones::Exclusion::track_cost(float & best_cost, float & best_pos, float origin) const { ++ const float p = test_position(origin), ++ localc = cost(p - origin); ++ if (open && localc > best_cost) return true; ++ ++ if (localc < best_cost) ++ { ++ best_cost = localc; ++ best_pos = p; ++ } ++ return false; ++} ++ ++inline ++float Zones::Exclusion::cost(float p) const { ++ return (sm * p - 2 * smx) * p + c; ++} ++ ++ ++float Zones::Exclusion::test_position(float origin) const { ++ if (sm < 0) ++ { ++ // sigh, test both ends and perhaps the middle too! ++ float res = x; ++ float cl = cost(x); ++ if (x < origin && xm > origin) ++ { ++ float co = cost(origin); ++ if (co < cl) ++ { ++ cl = co; ++ res = origin; ++ } ++ } ++ float cr = cost(xm); ++ return cl > cr ? xm : res; ++ } ++ else ++ { ++ float zerox = smx / sm + origin; ++ if (zerox < x) return x; ++ else if (zerox > xm) return xm; ++ else return zerox; ++ } ++} ++ ++ ++#if !defined GRAPHITE2_NTRACING ++ ++void Zones::jsonDbgOut(Segment *seg) const { ++ ++ if (_dbg) ++ { ++ for (Zones::idebugs s = dbgs_begin(), e = dbgs_end(); s != e; ++s) ++ { ++ *_dbg << json::flat << json::array ++ << objectid(dslot(seg, (Slot *)(s->_env[0]))) ++ << reinterpret_cast<ptrdiff_t>(s->_env[1]); ++ if (s->_isdel) ++ *_dbg << "remove" << Position(s->_excl.x, s->_excl.xm); ++ else ++ *_dbg << "exclude" << json::flat << json::array ++ << s->_excl.x << s->_excl.xm ++ << s->_excl.sm << s->_excl.smx << s->_excl.c ++ << json::close; ++ *_dbg << json::close; ++ } ++ } ++} ++ ++#endif ++ +diff --git a/gfx/graphite2/src/Justifier.cpp b/gfx/graphite2/src/Justifier.cpp +--- a/gfx/graphite2/src/Justifier.cpp ++++ b/gfx/graphite2/src/Justifier.cpp +@@ -26,17 +26,17 @@ of the License or (at your option) any l + */ + + #include "inc/Segment.h" + #include "graphite2/Font.h" + #include "inc/debug.h" + #include "inc/CharInfo.h" + #include "inc/Slot.h" + #include "inc/Main.h" +-#include <math.h> ++#include <cmath> + + using namespace graphite2; + + class JustifyTotal { + public: + JustifyTotal() : m_numGlyphs(0), m_tStretch(0), m_tShrink(0), m_tStep(0), m_tWeight(0) {} + void accumulate(Slot *s, Segment *seg, int level); + int weight() const { return m_tWeight; } +@@ -55,37 +55,44 @@ void JustifyTotal::accumulate(Slot *s, S + { + ++m_numGlyphs; + m_tStretch += s->getJustify(seg, level, 0); + m_tShrink += s->getJustify(seg, level, 1); + m_tStep += s->getJustify(seg, level, 2); + m_tWeight += s->getJustify(seg, level, 3); + } + +-float Segment::justify(Slot *pSlot, const Font *font, float width, GR_MAYBE_UNUSED justFlags flags, Slot *pFirst, Slot *pLast) ++float Segment::justify(Slot *pSlot, const Font *font, float width, GR_MAYBE_UNUSED justFlags jflags, Slot *pFirst, Slot *pLast) + { + Slot *s, *end; + float currWidth = 0.0; + const float scale = font ? font->scale() : 1.0f; + Position res; + + if (width < 0 && !(silf()->flags())) + return width; + ++ if ((m_dir & 1) != m_silf->dir() && m_silf->bidiPass() != m_silf->numPasses()) ++ { ++ reverseSlots(); ++ s = pFirst; ++ pFirst = pLast; ++ pLast = s; ++ } + if (!pFirst) pFirst = pSlot; + while (!pFirst->isBase()) pFirst = pFirst->attachedTo(); + if (!pLast) pLast = last(); + while (!pLast->isBase()) pLast = pLast->attachedTo(); + const float base = pFirst->origin().x / scale; + width = width / scale; +- if ((flags & gr_justEndInline) == 0) ++ if ((jflags & gr_justEndInline) == 0) + { + do { + Rect bbox = theGlyphBBoxTemporary(pLast->glyph()); +- if (bbox.bl.x != 0. || bbox.bl.y != 0. || bbox.tr.x != 0. || bbox.tr.y == 0.) ++ if (bbox.bl.x != 0.f || bbox.bl.y != 0.f || bbox.tr.x != 0.f || bbox.tr.y == 0.f) + break; + pLast = pLast->prev(); + } while (pLast != pFirst); + } + + end = pLast->nextSibling(); + pFirst = pFirst->nextSibling(); + +@@ -111,28 +118,27 @@ float Segment::justify(Slot *pSlot, cons + s->setJustify(this, 0, 3, 1); + s->setJustify(this, 0, 2, 1); + s->setJustify(this, 0, 0, -1); + } + } + ++numLevels; + } + +- JustifyTotal *stats = new JustifyTotal[numLevels]; +- if (!stats) return -1.0; ++ Vector<JustifyTotal> stats(numLevels); + for (s = pFirst; s != end; s = s->nextSibling()) + { + float w = s->origin().x / scale + s->advance() - base; + if (w > currWidth) currWidth = w; + for (int j = 0; j < numLevels; ++j) + stats[j].accumulate(s, this, j); + s->just(0); + } + +- for (int i = (width < 0.0) ? -1 : numLevels - 1; i >= 0; --i) ++ for (int i = (width < 0.0f) ? -1 : numLevels - 1; i >= 0; --i) + { + float diff; + float error = 0.; + float diffpw; + int tWeight = stats[i].weight(); + + do { + error = 0.; +@@ -154,29 +160,29 @@ float Segment::justify(Slot *pSlot, cons + } + else + { + float max = uint16(s->getJustify(this, i, 1)); + if (i == 0) max += s->just(); + if (-pref > max) pref = -max; + else tWeight += w; + } +- int actual = step ? int(pref / step) * step : int(pref); ++ int actual = int(pref / step) * step; + + if (actual) + { + error += diffpw * w - actual; + if (i == 0) + s->just(s->just() + actual); + else + s->setJustify(this, i, 4, actual); + } + } + currWidth += diff - error; +- } while (i == 0 && int(abs(error)) > 0 && tWeight); ++ } while (i == 0 && int(std::abs(error)) > 0 && tWeight); + } + + Slot *oldFirst = m_first; + Slot *oldLast = m_last; + if (silf()->flags() & 1) + { + m_first = pSlot = addLineEnd(pSlot); + m_last = pLast = addLineEnd(end); +@@ -192,41 +198,44 @@ float Segment::justify(Slot *pSlot, cons + #if !defined GRAPHITE2_NTRACING + json * const dbgout = m_face->logger(); + if (dbgout) + *dbgout << json::object + << "justifies" << objectid(this) + << "passes" << json::array; + #endif + +- if (m_silf->justificationPass() != m_silf->positionPass() && (width >= 0. || (silf()->flags() & 1))) ++ if (m_silf->justificationPass() != m_silf->positionPass() && (width >= 0.f || (silf()->flags() & 1))) + m_silf->runGraphite(this, m_silf->justificationPass(), m_silf->positionPass()); + + #if !defined GRAPHITE2_NTRACING + if (dbgout) + { + *dbgout << json::item << json::close; // Close up the passes array +- positionSlots(NULL, pSlot, pLast); ++ positionSlots(NULL, pSlot, pLast, m_dir); + Slot *lEnd = pLast->nextSibling(); + *dbgout << "output" << json::array; + for(Slot * t = pSlot; t != lEnd; t = t->next()) + *dbgout << dslot(this, t); + *dbgout << json::close << json::close; + } + #endif + +- res = positionSlots(font, pSlot, pLast); ++ res = positionSlots(font, pSlot, pLast, m_dir); + + if (silf()->flags() & 1) + { + delLineEnd(m_first); + delLineEnd(m_last); + } + m_first = oldFirst; + m_last = oldLast; ++ ++ if ((m_dir & 1) != m_silf->dir() && m_silf->bidiPass() != m_silf->numPasses()) ++ reverseSlots(); + return res.x; + } + + Slot *Segment::addLineEnd(Slot *nSlot) + { + Slot *eSlot = newSlot(); + if (!eSlot) return NULL; + const uint16 gid = silf()->endLineGlyphid(); +diff --git a/gfx/graphite2/src/Pass.cpp b/gfx/graphite2/src/Pass.cpp +--- a/gfx/graphite2/src/Pass.cpp ++++ b/gfx/graphite2/src/Pass.cpp +@@ -26,91 +26,120 @@ of the License or (at your option) any l + */ + #include "inc/Main.h" + #include "inc/debug.h" + #include "inc/Endian.h" + #include "inc/Pass.h" + #include <cstring> + #include <cstdlib> + #include <cassert> ++#include <cmath> + #include "inc/Segment.h" + #include "inc/Code.h" + #include "inc/Rule.h" + #include "inc/Error.h" ++#include "inc/Collider.h" + + using namespace graphite2; + using vm::Machine; + typedef Machine::Code Code; + ++enum KernCollison ++{ ++ None = 0, ++ CrossSpace = 1, ++ InWord = 2, ++ reserved = 3 ++}; + + Pass::Pass() + : m_silf(0), + m_cols(0), + m_rules(0), + m_ruleMap(0), + m_startStates(0), + m_transitions(0), + m_states(0), +- m_flags(0), ++ m_codes(0), ++ m_progs(0), ++ m_numCollRuns(0), ++ m_kernColls(0), + m_iMaxLoop(0), + m_numGlyphs(0), + m_numRules(0), + m_numStates(0), + m_numTransition(0), + m_numSuccess(0), ++ m_successStart(0), + m_numColumns(0), + m_minPreCtxt(0), +- m_maxPreCtxt(0) ++ m_maxPreCtxt(0), ++ m_colThreshold(0), ++ m_isReverseDir(false) + { + } + + Pass::~Pass() + { + free(m_cols); + free(m_startStates); + free(m_transitions); + free(m_states); + free(m_ruleMap); + +- delete [] m_rules; ++ if (m_rules) delete [] m_rules; ++ if (m_codes) delete [] m_codes; ++ free(m_progs); + } + +-bool Pass::readPass(const byte * const pass_start, size_t pass_length, size_t subtable_base, GR_MAYBE_UNUSED Face & face, Error &e) ++bool Pass::readPass(const byte * const pass_start, size_t pass_length, size_t subtable_base, ++ GR_MAYBE_UNUSED Face & face, passtype pt, GR_MAYBE_UNUSED uint32 version, Error &e) + { +- const byte * p = pass_start, +- * const pass_end = p + pass_length; ++ const byte * p = pass_start, ++ * const pass_end = p + pass_length; + size_t numRanges; + + if (e.test(pass_length < 40, E_BADPASSLENGTH)) return face.error(e); + // Read in basic values +- m_flags = be::read<byte>(p); ++ const byte flags = be::read<byte>(p); ++ if (e.test((flags & 0x1f) && ++ (pt < PASS_TYPE_POSITIONING || !m_silf->aCollision() || !face.glyphs().hasBoxes()), ++ E_BADCOLLISIONPASS)) ++ return face.error(e); ++ m_numCollRuns = flags & 0x7; ++ m_kernColls = (flags >> 3) & 0x3; ++ m_isReverseDir = (flags >> 5) & 0x1; + m_iMaxLoop = be::read<byte>(p); ++ if (m_iMaxLoop < 1) m_iMaxLoop = 1; + be::skip<byte>(p,2); // skip maxContext & maxBackup + m_numRules = be::read<uint16>(p); ++ if (e.test(!m_numRules && m_numCollRuns == 0, E_BADEMPTYPASS)) return face.error(e); + be::skip<uint16>(p); // fsmOffset - not sure why we would want this + const byte * const pcCode = pass_start + be::read<uint32>(p) - subtable_base, + * const rcCode = pass_start + be::read<uint32>(p) - subtable_base, + * const aCode = pass_start + be::read<uint32>(p) - subtable_base; + be::skip<uint32>(p); + m_numStates = be::read<uint16>(p); + m_numTransition = be::read<uint16>(p); + m_numSuccess = be::read<uint16>(p); + m_numColumns = be::read<uint16>(p); + numRanges = be::read<uint16>(p); + be::skip<uint16>(p, 3); // skip searchRange, entrySelector & rangeShift. + assert(p - pass_start == 40); + // Perform some sanity checks. + if ( e.test(m_numTransition > m_numStates, E_BADNUMTRANS) + || e.test(m_numSuccess > m_numStates, E_BADNUMSUCCESS) + || e.test(m_numSuccess + m_numTransition < m_numStates, E_BADNUMSTATES) +- || e.test(numRanges == 0, E_NORANGES)) ++ || e.test(m_numRules && numRanges == 0, E_NORANGES) ++ || e.test(m_numColumns > 0x7FFF, E_BADNUMCOLUMNS)) + return face.error(e); + + m_successStart = m_numStates - m_numSuccess; +- if (e.test(p + numRanges * 6 - 4 > pass_end, E_BADPASSLENGTH)) return face.error(e); ++ // test for beyond end - 1 to account for reading uint16 ++ if (e.test(p + numRanges * 6 - 2 > pass_end, E_BADPASSLENGTH)) return face.error(e); + m_numGlyphs = be::peek<uint16>(p + numRanges * 6 - 4) + 1; + // Calculate the start of various arrays. + const byte * const ranges = p; + be::skip<uint16>(p, numRanges*3); + const byte * const o_rule_map = p; + be::skip<uint16>(p, m_numSuccess + 1); + + // More sanity checks +@@ -126,108 +155,141 @@ bool Pass::readPass(const byte * const p + m_maxPreCtxt = be::read<uint8>(p); + if (e.test(m_minPreCtxt > m_maxPreCtxt, E_BADCTXTLENBOUNDS)) return face.error(e); + const byte * const start_states = p; + be::skip<int16>(p, m_maxPreCtxt - m_minPreCtxt + 1); + const uint16 * const sort_keys = reinterpret_cast<const uint16 *>(p); + be::skip<uint16>(p, m_numRules); + const byte * const precontext = p; + be::skip<byte>(p, m_numRules); +- be::skip<byte>(p); // skip reserved byte + +- if (e.test(p + sizeof(uint16) > pass_end, E_BADCTXTLENS)) return face.error(e); ++ if (e.test(p + sizeof(uint16) + sizeof(uint8) > pass_end, E_BADCTXTLENS)) return face.error(e); ++ m_colThreshold = be::read<uint8>(p); ++ if (m_colThreshold == 0) m_colThreshold = 10; // A default + const size_t pass_constraint_len = be::read<uint16>(p); ++ + const uint16 * const o_constraint = reinterpret_cast<const uint16 *>(p); + be::skip<uint16>(p, m_numRules + 1); + const uint16 * const o_actions = reinterpret_cast<const uint16 *>(p); + be::skip<uint16>(p, m_numRules + 1); + const byte * const states = p; ++ if (e.test(p + 2u*m_numTransition*m_numColumns >= pass_end, E_BADPASSLENGTH)) return face.error(e); + be::skip<int16>(p, m_numTransition*m_numColumns); +- be::skip<byte>(p); // skip reserved byte +- if (e.test(p != pcCode, E_BADPASSCCODEPTR) || e.test(p >= pass_end, E_BADPASSLENGTH)) return face.error(e); ++ be::skip<uint8>(p); ++ if (e.test(p != pcCode, E_BADPASSCCODEPTR)) return face.error(e); + be::skip<byte>(p, pass_constraint_len); +- if (e.test(p != rcCode, E_BADRULECCODEPTR) || e.test(p >= pass_end, E_BADPASSLENGTH) ++ if (e.test(p != rcCode, E_BADRULECCODEPTR) + || e.test(size_t(rcCode - pcCode) != pass_constraint_len, E_BADCCODELEN)) return face.error(e); + be::skip<byte>(p, be::peek<uint16>(o_constraint + m_numRules)); +- if (e.test(p != aCode, E_BADACTIONCODEPTR) || e.test(p >= pass_end, E_BADPASSLENGTH)) return face.error(e); ++ if (e.test(p != aCode, E_BADACTIONCODEPTR)) return face.error(e); + be::skip<byte>(p, be::peek<uint16>(o_actions + m_numRules)); + + // We should be at the end or within the pass + if (e.test(p > pass_end, E_BADPASSLENGTH)) return face.error(e); + + // Load the pass constraint if there is one. + if (pass_constraint_len) + { + face.error_context(face.error_context() + 1); + m_cPConstraint = vm::Machine::Code(true, pcCode, pcCode + pass_constraint_len, +- precontext[0], be::peek<uint16>(sort_keys), *m_silf, face); ++ precontext[0], be::peek<uint16>(sort_keys), *m_silf, face, PASS_TYPE_UNKNOWN); + if (e.test(!m_cPConstraint, E_OUTOFMEM) +- || e.test(m_cPConstraint.status(), m_cPConstraint.status() + E_CODEFAILURE)) ++ || e.test(!m_cPConstraint, m_cPConstraint.status() + E_CODEFAILURE)) + return face.error(e); + face.error_context(face.error_context() - 1); + } +- if (!readRanges(ranges, numRanges, e)) return face.error(e); +- if (!readRules(rule_map, numEntries, precontext, sort_keys, +- o_constraint, rcCode, o_actions, aCode, face, e)) return false; ++ if (m_numRules) ++ { ++ if (!readRanges(ranges, numRanges, e)) return face.error(e); ++ if (!readRules(rule_map, numEntries, precontext, sort_keys, ++ o_constraint, rcCode, o_actions, aCode, face, pt, e)) return false; ++ } + #ifdef GRAPHITE2_TELEMETRY + telemetry::category _states_cat(face.tele.states); + #endif +- return readStates(start_states, states, o_rule_map, face, e); ++ return m_numRules ? readStates(start_states, states, o_rule_map, face, e) : true; + } + + + bool Pass::readRules(const byte * rule_map, const size_t num_entries, + const byte *precontext, const uint16 * sort_key, + const uint16 * o_constraint, const byte *rc_data, + const uint16 * o_action, const byte * ac_data, +- Face & face, Error &e) ++ Face & face, passtype pt, Error &e) + { + const byte * const ac_data_end = ac_data + be::peek<uint16>(o_action + m_numRules); + const byte * const rc_data_end = rc_data + be::peek<uint16>(o_constraint + m_numRules); + +- if (e.test(!(m_rules = new Rule [m_numRules]), E_OUTOFMEM)) return face.error(e); + precontext += m_numRules; + sort_key += m_numRules; + o_constraint += m_numRules; + o_action += m_numRules; + + // Load rules. + const byte * ac_begin = 0, * rc_begin = 0, + * ac_end = ac_data + be::peek<uint16>(o_action), + * rc_end = rc_data + be::peek<uint16>(o_constraint); ++ ++ // Allocate pools ++ m_rules = new Rule [m_numRules]; ++ m_codes = new Code [m_numRules*2]; ++ const size_t prog_pool_sz = vm::Machine::Code::estimateCodeDataOut(ac_end - ac_data + rc_end - rc_data); ++ m_progs = gralloc<byte>(prog_pool_sz); ++ byte * prog_pool_free = m_progs, ++ * prog_pool_end = m_progs + prog_pool_sz; ++ if (e.test(!(m_rules && m_codes && m_progs), E_OUTOFMEM)) return face.error(e); ++ + Rule * r = m_rules + m_numRules - 1; + for (size_t n = m_numRules; n; --n, --r, ac_end = ac_begin, rc_end = rc_begin) + { + face.error_context((face.error_context() & 0xFFFF00) + EC_ARULE + ((n - 1) << 24)); + r->preContext = *--precontext; + r->sort = be::peek<uint16>(--sort_key); + #ifndef NDEBUG + r->rule_idx = n - 1; + #endif + if (r->sort > 63 || r->preContext >= r->sort || r->preContext > m_maxPreCtxt || r->preContext < m_minPreCtxt) + return false; + ac_begin = ac_data + be::peek<uint16>(--o_action); + --o_constraint; + rc_begin = be::peek<uint16>(o_constraint) ? rc_data + be::peek<uint16>(o_constraint) : rc_end; + + if (ac_begin > ac_end || ac_begin > ac_data_end || ac_end > ac_data_end +- || rc_begin > rc_end || rc_begin > rc_data_end || rc_end > rc_data_end) ++ || rc_begin > rc_end || rc_begin > rc_data_end || rc_end > rc_data_end ++ || vm::Machine::Code::estimateCodeDataOut(ac_end - ac_begin + rc_end - rc_begin) > size_t(prog_pool_end - prog_pool_free)) + return false; +- r->action = new vm::Machine::Code(false, ac_begin, ac_end, r->preContext, r->sort, *m_silf, face); +- r->constraint = new vm::Machine::Code(true, rc_begin, rc_end, r->preContext, r->sort, *m_silf, face); ++ r->action = new (m_codes+n*2-2) vm::Machine::Code(false, ac_begin, ac_end, r->preContext, r->sort, *m_silf, face, pt, &prog_pool_free); ++ r->constraint = new (m_codes+n*2-1) vm::Machine::Code(true, rc_begin, rc_end, r->preContext, r->sort, *m_silf, face, pt, &prog_pool_free); + + if (e.test(!r->action || !r->constraint, E_OUTOFMEM) + || e.test(r->action->status() != Code::loaded, r->action->status() + E_CODEFAILURE) + || e.test(r->constraint->status() != Code::loaded, r->constraint->status() + E_CODEFAILURE) + || e.test(!r->constraint->immutable(), E_MUTABLECCODE)) + return face.error(e); + } + ++ byte * moved_progs = static_cast<byte *>(realloc(m_progs, prog_pool_free - m_progs)); ++ if (e.test(!moved_progs, E_OUTOFMEM)) ++ { ++ if (prog_pool_free - m_progs == 0) m_progs = 0; ++ return face.error(e); ++ } ++ ++ if (moved_progs != m_progs) ++ { ++ for (Code * c = m_codes, * const ce = c + m_numRules*2; c != ce; ++c) ++ { ++ c->externalProgramMoved(moved_progs - m_progs); ++ } ++ m_progs = moved_progs; ++ } ++ + // Load the rule entries map + face.error_context((face.error_context() & 0xFFFF00) + EC_APASS); ++ //TODO: Coverty: 1315804: FORWARD_NULL + RuleEntry * re = m_ruleMap = gralloc<RuleEntry>(num_entries); + if (e.test(!re, E_OUTOFMEM)) return face.error(e); + for (size_t n = num_entries; n; --n, ++re) + { + const ptrdiff_t rn = be::read<uint16>(rule_map); + if (e.test(rn >= m_numRules, E_BADRULENUM)) return face.error(e); + re->rule = m_rules + rn; + } +@@ -320,43 +382,69 @@ bool Pass::readRanges(const byte * range + + if (e.test(ci != ci_end, E_BADRANGE)) + return false; + } + return true; + } + + +-void Pass::runGraphite(Machine & m, FiniteStateMachine & fsm) const ++bool Pass::runGraphite(vm::Machine & m, FiniteStateMachine & fsm, bool reverse) const + { + Slot *s = m.slotMap().segment.first(); +- if (!s || !testPassConstraint(m)) return; +- Slot *currHigh = s->next(); ++ if (!s || !testPassConstraint(m)) return true; ++ if (reverse) ++ { ++ m.slotMap().segment.reverseSlots(); ++ s = m.slotMap().segment.first(); ++ } ++ if (m_numRules) ++ { ++ Slot *currHigh = s->next(); + + #if !defined GRAPHITE2_NTRACING +- if (fsm.dbgout) *fsm.dbgout << "rules" << json::array; +- json::closer rules_array_closer(fsm.dbgout); ++ if (fsm.dbgout) *fsm.dbgout << "rules" << json::array; ++ json::closer rules_array_closer(fsm.dbgout); + #endif + +- m.slotMap().highwater(currHigh); +- int lc = m_iMaxLoop; +- do ++ m.slotMap().highwater(currHigh); ++ int lc = m_iMaxLoop; ++ do ++ { ++ findNDoRule(s, m, fsm); ++ if (s && (s == m.slotMap().highwater() || m.slotMap().highpassed() || --lc == 0)) { ++ if (!lc) ++ s = m.slotMap().highwater(); ++ lc = m_iMaxLoop; ++ if (s) ++ m.slotMap().highwater(s->next()); ++ } ++ } while (s); ++ } ++ //TODO: Use enums for flags ++ const bool collisions = m_numCollRuns || m_kernColls; ++ ++ if (!collisions || !m.slotMap().segment.hasCollisionInfo()) ++ return true; ++ ++ if (m_numCollRuns) + { +- findNDoRule(s, m, fsm); +- if (s && (m.slotMap().highpassed() || s == m.slotMap().highwater() || --lc == 0)) { +- if (!lc) +- { +-// if (dbgout) *dbgout << json::item << json::flat << rule_event(-1, s, 1); +- s = m.slotMap().highwater(); +- } +- lc = m_iMaxLoop; +- if (s) +- m.slotMap().highwater(s->next()); ++ if (!(m.slotMap().segment.flags() & Segment::SEG_INITCOLLISIONS)) ++ { ++ m.slotMap().segment.positionSlots(0, 0, 0, m.slotMap().dir(), true); ++// m.slotMap().segment.flags(m.slotMap().segment.flags() | Segment::SEG_INITCOLLISIONS); + } +- } while (s); ++ if (!collisionShift(&m.slotMap().segment, m.slotMap().dir(), fsm.dbgout)) ++ return false; ++ } ++ if ((m_kernColls) && !collisionKern(&m.slotMap().segment, m.slotMap().dir(), fsm.dbgout)) ++ return false; ++ if (collisions && !collisionFinish(&m.slotMap().segment, fsm.dbgout)) ++ return false; ++ return true; + } + + bool Pass::runFSM(FiniteStateMachine& fsm, Slot * slot) const + { + fsm.reset(slot, m_maxPreCtxt); + if (fsm.slots.context() < m_minPreCtxt) + return false; + +@@ -419,18 +507,18 @@ void Pass::findNDoRule(Slot * & slot, Ma + { + if (fsm.rules.size() != 0) + { + *fsm.dbgout << json::item << json::object; + dumpRuleEventConsidered(fsm, *r); + if (r != re) + { + const int adv = doAction(r->rule->action, slot, m); +- dumpRuleEventOutput(fsm, *r->rule, slot); +- if (r->rule->action->deletes()) fsm.slots.collectGarbage(); ++ dumpRuleEventOutput(fsm, m, *r->rule, slot); ++ if (r->rule->action->deletes()) fsm.slots.collectGarbage(slot); + adjustSlot(adv, slot, fsm.slots); + *fsm.dbgout << "cursor" << objectid(dslot(&fsm.slots.segment, slot)) + << json::close; // Close RuelEvent object + + return; + } + else + { +@@ -442,47 +530,49 @@ void Pass::findNDoRule(Slot * & slot, Ma + } + } + else + #endif + { + if (r != re) + { + const int adv = doAction(r->rule->action, slot, m); +- if (r->rule->action->deletes()) fsm.slots.collectGarbage(); ++ if (r->rule->action->deletes()) fsm.slots.collectGarbage(slot); + adjustSlot(adv, slot, fsm.slots); + return; + } + } + } + + slot = slot->next(); ++ return; + } + + #if !defined GRAPHITE2_NTRACING + + void Pass::dumpRuleEventConsidered(const FiniteStateMachine & fsm, const RuleEntry & re) const + { + *fsm.dbgout << "considered" << json::array; + for (const RuleEntry *r = fsm.rules.begin(); r != &re; ++r) + { +- if (r->rule->preContext > fsm.slots.context()) continue; +- *fsm.dbgout << json::flat << json::object +- << "id" << r->rule - m_rules ++ if (r->rule->preContext > fsm.slots.context()) ++ continue; ++ *fsm.dbgout << json::flat << json::object ++ << "id" << r->rule - m_rules + << "failed" << true + << "input" << json::flat << json::object + << "start" << objectid(dslot(&fsm.slots.segment, input_slot(fsm.slots, -r->rule->preContext))) + << "length" << r->rule->sort + << json::close // close "input" + << json::close; // close Rule object + } + } + + +-void Pass::dumpRuleEventOutput(const FiniteStateMachine & fsm, const Rule & r, Slot * const last_slot) const ++void Pass::dumpRuleEventOutput(const FiniteStateMachine & fsm, Machine & m, const Rule & r, Slot * const last_slot) const + { + *fsm.dbgout << json::item << json::flat << json::object + << "id" << &r - m_rules + << "failed" << false + << "input" << json::flat << json::object + << "start" << objectid(dslot(&fsm.slots.segment, input_slot(fsm.slots, 0))) + << "length" << r.sort - r.preContext + << json::close // close "input" +@@ -490,17 +580,17 @@ void Pass::dumpRuleEventOutput(const Fin + << json::close // close considered array + << "output" << json::object + << "range" << json::flat << json::object + << "start" << objectid(dslot(&fsm.slots.segment, input_slot(fsm.slots, 0))) + << "end" << objectid(dslot(&fsm.slots.segment, last_slot)) + << json::close // close "input" + << "slots" << json::array; + const Position rsb_prepos = last_slot ? last_slot->origin() : fsm.slots.segment.advance(); +- fsm.slots.segment.positionSlots(0); ++ fsm.slots.segment.positionSlots(0, 0, 0, m.slotMap().dir()); + + for(Slot * slot = output_slot(fsm.slots, 0); slot != last_slot; slot = slot->next()) + *fsm.dbgout << dslot(&fsm.slots.segment, slot); + *fsm.dbgout << json::close // close "slots" + << "postshift" << (last_slot ? last_slot->origin() : fsm.slots.segment.advance()) - rsb_prepos + << json::close; // close "output" object + + } +@@ -546,22 +636,26 @@ bool Pass::testConstraint(const Rule & r + if (!ret || m.status() != Machine::finished) + return false; + } + + return true; + } + + +-void SlotMap::collectGarbage() ++void SlotMap::collectGarbage(Slot * &aSlot) + { + for(Slot **s = begin(), *const *const se = end() - 1; s != se; ++s) { + Slot *& slot = *s; + if(slot->isDeleted() || slot->isCopied()) ++ { ++ if (slot == aSlot) ++ aSlot = slot->prev() ? slot->prev() : slot->next(); + segment.freeSlot(slot); ++ } + } + } + + + + int Pass::doAction(const Code *codeptr, Slot * & slot_out, vm::Machine & m) const + { + assert(codeptr); +@@ -581,40 +675,412 @@ int Pass::doAction(const Code *codeptr, + + slot_out = *map; + return ret; + } + + + void Pass::adjustSlot(int delta, Slot * & slot_out, SlotMap & smap) const + { +- if (delta < 0) ++ if (!slot_out) + { +- if (!slot_out) ++ if (smap.highpassed() || slot_out == smap.highwater()) + { + slot_out = smap.segment.last(); + ++delta; +- if (smap.highpassed() && !smap.highwater()) ++ if (!smap.highwater()) + smap.highpassed(false); + } ++ else ++ { ++ slot_out = smap.segment.first(); ++ --delta; ++ } ++ } ++ if (delta < 0) ++ { + while (++delta <= 0 && slot_out) + { + if (smap.highpassed() && smap.highwater() == slot_out) + smap.highpassed(false); + slot_out = slot_out->prev(); + } + } + else if (delta > 0) + { +- if (!slot_out) +- { +- slot_out = smap.segment.first(); +- --delta; +- } + while (--delta >= 0 && slot_out) + { + slot_out = slot_out->next(); + if (slot_out == smap.highwater() && slot_out) + smap.highpassed(true); + } + } + } + ++bool Pass::collisionShift(Segment *seg, int dir, json * const dbgout) const ++{ ++ ShiftCollider shiftcoll(dbgout); ++ // bool isfirst = true; ++ bool hasCollisions = false; ++ Slot *start = seg->first(); // turn on collision fixing for the first slot ++ Slot *end = NULL; ++ bool moved = false; ++ ++#if !defined GRAPHITE2_NTRACING ++ if (dbgout) ++ *dbgout << "collisions" << json::array ++ << json::flat << json::object << "num-loops" << m_numCollRuns << json::close; ++#endif ++ ++ while (start) ++ { ++#if !defined GRAPHITE2_NTRACING ++ if (dbgout) *dbgout << json::object << "phase" << "1" << "moves" << json::array; ++#endif ++ hasCollisions = false; ++ end = NULL; ++ // phase 1 : position shiftable glyphs, ignoring kernable glyphs ++ for (Slot *s = start; s; s = s->next()) ++ { ++ const SlotCollision * c = seg->collisionInfo(s); ++ if (start && (c->flags() & (SlotCollision::COLL_FIX | SlotCollision::COLL_KERN)) == SlotCollision::COLL_FIX ++ && !resolveCollisions(seg, s, start, shiftcoll, false, dir, moved, hasCollisions, dbgout)) ++ return false; ++ if (s != start && (c->flags() & SlotCollision::COLL_END)) ++ { ++ end = s->next(); ++ break; ++ } ++ } ++ ++#if !defined GRAPHITE2_NTRACING ++ if (dbgout) ++ *dbgout << json::close << json::close; // phase-1 ++#endif ++ ++ // phase 2 : loop until happy. ++ for (int i = 0; i < m_numCollRuns - 1; ++i) ++ { ++ if (hasCollisions || moved) ++ { ++ ++#if !defined GRAPHITE2_NTRACING ++ if (dbgout) ++ *dbgout << json::object << "phase" << "2a" << "loop" << i << "moves" << json::array; ++#endif ++ // phase 2a : if any shiftable glyphs are in collision, iterate backwards, ++ // fixing them and ignoring other non-collided glyphs. Note that this handles ONLY ++ // glyphs that are actually in collision from phases 1 or 2b, and working backwards ++ // has the intended effect of breaking logjams. ++ if (hasCollisions) ++ { ++ hasCollisions = false; ++ #if 0 ++ moved = true; ++ for (Slot *s = start; s != end; s = s->next()) ++ { ++ SlotCollision * c = seg->collisionInfo(s); ++ c->setShift(Position(0, 0)); ++ } ++ #endif ++ Slot *lend = end ? end->prev() : seg->last(); ++ Slot *lstart = start->prev(); ++ for (Slot *s = lend; s != lstart; s = s->prev()) ++ { ++ SlotCollision * c = seg->collisionInfo(s); ++ if (start && (c->flags() & (SlotCollision::COLL_FIX | SlotCollision::COLL_KERN | SlotCollision::COLL_ISCOL)) ++ == (SlotCollision::COLL_FIX | SlotCollision::COLL_ISCOL)) // ONLY if this glyph is still colliding ++ { ++ if (!resolveCollisions(seg, s, lend, shiftcoll, true, dir, moved, hasCollisions, dbgout)) ++ return false; ++ c->setFlags(c->flags() | SlotCollision::COLL_TEMPLOCK); ++ } ++ } ++ } ++ ++#if !defined GRAPHITE2_NTRACING ++ if (dbgout) ++ *dbgout << json::close << json::close // phase 2a ++ << json::object << "phase" << "2b" << "loop" << i << "moves" << json::array; ++#endif ++ ++ // phase 2b : redo basic diacritic positioning pass for ALL glyphs. Each successive loop adjusts ++ // glyphs from their current adjusted position, which has the effect of gradually minimizing the ++ // resulting adjustment; ie, the final result will be gradually closer to the original location. ++ // Also it allows more flexibility in the final adjustment, since it is moving along the ++ // possible 8 vectors from successively different starting locations. ++ if (moved) ++ { ++ moved = false; ++ for (Slot *s = start; s != end; s = s->next()) ++ { ++ SlotCollision * c = seg->collisionInfo(s); ++ if (start && (c->flags() & (SlotCollision::COLL_FIX | SlotCollision::COLL_TEMPLOCK ++ | SlotCollision::COLL_KERN)) == SlotCollision::COLL_FIX ++ && !resolveCollisions(seg, s, start, shiftcoll, false, dir, moved, hasCollisions, dbgout)) ++ return false; ++ else if (c->flags() & SlotCollision::COLL_TEMPLOCK) ++ c->setFlags(c->flags() & ~SlotCollision::COLL_TEMPLOCK); ++ } ++ } ++ // if (!hasCollisions) // no, don't leave yet because phase 2b will continue to improve things ++ // break; ++#if !defined GRAPHITE2_NTRACING ++ if (dbgout) ++ *dbgout << json::close << json::close; // phase 2 ++#endif ++ } ++ } ++ if (!end) ++ break; ++ start = NULL; ++ for (Slot *s = end->prev(); s; s = s->next()) ++ { ++ if (seg->collisionInfo(s)->flags() & SlotCollision::COLL_START) ++ { ++ start = s; ++ break; ++ } ++ } ++ } ++ return true; ++} ++ ++bool Pass::collisionKern(Segment *seg, int dir, json * const dbgout) const ++{ ++ KernCollider kerncoll(dbgout); ++ Slot *start = seg->first(); ++ float ymin = 1e38f; ++ float ymax = -1e38f; ++ const GlyphCache &gc = seg->getFace()->glyphs(); ++ ++ // phase 3 : handle kerning of clusters ++#if !defined GRAPHITE2_NTRACING ++ if (dbgout) ++ *dbgout << json::object << "phase" << "3" << "moves" << json::array; ++#endif ++ ++ for (Slot *s = seg->first(); s; s = s->next()) ++ { ++ if (!gc.check(s->gid())) ++ return false; ++ const SlotCollision * c = seg->collisionInfo(s); ++ const Rect &bbox = seg->theGlyphBBoxTemporary(s->gid()); ++ float y = s->origin().y + c->shift().y; ++ ymax = max(y + bbox.tr.y, ymax); ++ ymin = min(y + bbox.bl.y, ymin); ++ if (start && (c->flags() & (SlotCollision::COLL_KERN | SlotCollision::COLL_FIX)) ++ == (SlotCollision::COLL_KERN | SlotCollision::COLL_FIX)) ++ resolveKern(seg, s, start, kerncoll, dir, ymin, ymax, dbgout); ++ if (c->flags() & SlotCollision::COLL_END) ++ start = NULL; ++ if (c->flags() & SlotCollision::COLL_START) ++ start = s; ++ } ++ ++#if !defined GRAPHITE2_NTRACING ++ if (dbgout) ++ *dbgout << json::close << json::close; // phase 3 ++#endif ++ return true; ++} ++ ++bool Pass::collisionFinish(Segment *seg, GR_MAYBE_UNUSED json * const dbgout) const ++{ ++ for (Slot *s = seg->first(); s; s = s->next()) ++ { ++ SlotCollision *c = seg->collisionInfo(s); ++ if (c->shift().x != 0 || c->shift().y != 0) ++ { ++ const Position newOffset = c->shift(); ++ const Position nullPosition(0, 0); ++ c->setOffset(newOffset + c->offset()); ++ c->setShift(nullPosition); ++ } ++ } ++// seg->positionSlots(); ++ ++#if !defined GRAPHITE2_NTRACING ++ if (dbgout) ++ *dbgout << json::close; ++#endif ++ return true; ++} ++ ++// Can slot s be kerned, or is it attached to something that can be kerned? ++static bool inKernCluster(Segment *seg, Slot *s) ++{ ++ SlotCollision *c = seg->collisionInfo(s); ++ if (c->flags() & SlotCollision::COLL_KERN /** && c->flags() & SlotCollision::COLL_FIX **/ ) ++ return true; ++ while (s->attachedTo()) ++ { ++ s = s->attachedTo(); ++ c = seg->collisionInfo(s); ++ if (c->flags() & SlotCollision::COLL_KERN /** && c->flags() & SlotCollision::COLL_FIX **/ ) ++ return true; ++ } ++ return false; ++} ++ ++// Fix collisions for the given slot. ++// Return true if everything was fixed, false if there are still collisions remaining. ++// isRev means be we are processing backwards. ++bool Pass::resolveCollisions(Segment *seg, Slot *slotFix, Slot *start, ++ ShiftCollider &coll, GR_MAYBE_UNUSED bool isRev, int dir, bool &moved, bool &hasCol, ++ json * const dbgout) const ++{ ++ Slot * nbor; // neighboring slot ++ SlotCollision *cFix = seg->collisionInfo(slotFix); ++ if (!coll.initSlot(seg, slotFix, cFix->limit(), cFix->margin(), cFix->marginWt(), ++ cFix->shift(), cFix->offset(), dir, dbgout)) ++ return false; ++ bool collides = false; ++ // When we're processing forward, ignore kernable glyphs that preceed the target glyph. ++ // When processing backward, don't ignore these until we pass slotFix. ++ bool ignoreForKern = !isRev; ++ bool rtl = dir & 1; ++ Slot *base = slotFix; ++ while (base->attachedTo()) ++ base = base->attachedTo(); ++ Position zero(0., 0.); ++ ++ // Look for collisions with the neighboring glyphs. ++ for (nbor = start; nbor; nbor = isRev ? nbor->prev() : nbor->next()) ++ { ++ SlotCollision *cNbor = seg->collisionInfo(nbor); ++ bool sameCluster = nbor->isChildOf(base); ++ if (nbor != slotFix // don't process if this is the slot of interest ++ && !(cNbor->flags() & SlotCollision::COLL_IGNORE) // don't process if ignoring ++ && (nbor == base || sameCluster // process if in the same cluster as slotFix ++ || !inKernCluster(seg, nbor) // or this cluster is not to be kerned ++ || (rtl ^ ignoreForKern)) // or it comes before(ltr) or after(rtl) ++ && (!isRev // if processing forwards then good to merge otherwise only: ++ || !(cNbor->flags() & SlotCollision::COLL_FIX) // merge in immovable stuff ++ || ((cNbor->flags() & SlotCollision::COLL_KERN) && !sameCluster) // ignore other kernable clusters ++ || (cNbor->flags() & SlotCollision::COLL_ISCOL)) // test against other collided glyphs ++ && !coll.mergeSlot(seg, nbor, cNbor->shift(), !ignoreForKern, sameCluster, collides, false, dbgout)) ++ return false; ++ else if (nbor == slotFix) ++ // Switching sides of this glyph - if we were ignoring kernable stuff before, don't anymore. ++ ignoreForKern = !ignoreForKern; ++ ++ if (nbor != start && (cNbor->flags() & (isRev ? SlotCollision::COLL_START : SlotCollision::COLL_END))) ++ break; ++ } ++ bool isCol = false; ++ if (collides || cFix->shift().x != 0.f || cFix->shift().y != 0.f) ++ { ++ Position shift = coll.resolve(seg, isCol, dbgout); ++ // isCol has been set to true if a collision remains. ++ if (std::fabs(shift.x) < 1e38f && std::fabs(shift.y) < 1e38f) ++ { ++ if (sqr(shift.x-cFix->shift().x) + sqr(shift.y-cFix->shift().y) >= m_colThreshold * m_colThreshold) ++ moved = true; ++ cFix->setShift(shift); ++ if (slotFix->firstChild()) ++ { ++ Rect bbox; ++ Position here = slotFix->origin() + shift; ++ float clusterMin = here.x; ++ slotFix->firstChild()->finalise(seg, NULL, here, bbox, 0, clusterMin, rtl, false); ++ } ++ } ++ } ++ else ++ { ++ // This glyph is not colliding with anything. ++#if !defined GRAPHITE2_NTRACING ++ if (dbgout) ++ { ++ *dbgout << json::object ++ << "missed" << objectid(dslot(seg, slotFix)); ++ coll.outputJsonDbg(dbgout, seg, -1); ++ *dbgout << json::close; ++ } ++#endif ++ } ++ ++ // Set the is-collision flag bit. ++ if (isCol) ++ { cFix->setFlags(cFix->flags() | SlotCollision::COLL_ISCOL | SlotCollision::COLL_KNOWN); } ++ else ++ { cFix->setFlags((cFix->flags() & ~SlotCollision::COLL_ISCOL) | SlotCollision::COLL_KNOWN); } ++ hasCol |= isCol; ++ return true; ++} ++ ++float Pass::resolveKern(Segment *seg, Slot *slotFix, GR_MAYBE_UNUSED Slot *start, KernCollider &coll, int dir, ++ float &ymin, float &ymax, json *const dbgout) const ++{ ++ Slot *nbor; // neighboring slot ++ float currSpace = 0.; ++ bool collides = false; ++ unsigned int space_count = 0; ++ Slot *base = slotFix; ++ while (base->attachedTo()) ++ base = base->attachedTo(); ++ SlotCollision *cFix = seg->collisionInfo(base); ++ const GlyphCache &gc = seg->getFace()->glyphs(); ++ ++ if (base != slotFix) ++ { ++ cFix->setFlags(cFix->flags() | SlotCollision::COLL_KERN | SlotCollision::COLL_FIX); ++ return 0; ++ } ++ bool seenEnd = (cFix->flags() & SlotCollision::COLL_END) != 0; ++ bool isInit = false; ++ ++ for (nbor = slotFix->next(); nbor; nbor = nbor->next()) ++ { ++ if (nbor->isChildOf(base)) ++ continue; ++ if (!gc.check(nbor->gid())) ++ return 0.; ++ const Rect &bb = seg->theGlyphBBoxTemporary(nbor->gid()); ++ SlotCollision *cNbor = seg->collisionInfo(nbor); ++ if (bb.bl.y == 0.f && bb.tr.y == 0.f) ++ { ++ if (m_kernColls == InWord) ++ break; ++ // Add space for a space glyph. ++ currSpace += nbor->advance(); ++ ++space_count; ++ } ++ else ++ { ++ space_count = 0; ++ float y = nbor->origin().y + cNbor->shift().y; ++ ymax = max(y + bb.tr.y, ymax); ++ ymin = min(y + bb.bl.y, ymin); ++ if (nbor != slotFix && !(cNbor->flags() & SlotCollision::COLL_IGNORE)) ++ { ++ seenEnd = true; ++ if (!isInit) ++ { ++ if (!coll.initSlot(seg, slotFix, cFix->limit(), cFix->margin(), ++ cFix->shift(), cFix->offset(), dir, ymin, ymax, dbgout)) ++ return 0.; ++ isInit = true; ++ } ++ collides |= coll.mergeSlot(seg, nbor, cNbor->shift(), currSpace, dir, dbgout); ++ } ++ } ++ if (cNbor->flags() & SlotCollision::COLL_END) ++ { ++ if (seenEnd && space_count < 2) ++ break; ++ else ++ seenEnd = true; ++ } ++ } ++ if (collides) ++ { ++ Position mv = coll.resolve(seg, slotFix, dir, cFix->margin(), dbgout); ++ coll.shift(mv, dir); ++ Position delta = slotFix->advancePos() + mv - cFix->shift(); ++ slotFix->advance(delta); ++ cFix->setShift(mv); ++ return mv.x; ++ } ++ return 0.; ++} ++ +diff --git a/gfx/graphite2/src/Position.cpp b/gfx/graphite2/src/Position.cpp +new file mode 100644 +--- /dev/null ++++ b/gfx/graphite2/src/Position.cpp +@@ -0,0 +1,98 @@ ++/* GRAPHITE2 LICENSING ++ ++ Copyright 2010, SIL International ++ All rights reserved. ++ ++ This library is free software; you can redistribute it and/or modify ++ it under the terms of the GNU Lesser General Public License as published ++ by the Free Software Foundation; either version 2.1 of License, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ Lesser General Public License for more details. ++ ++ You should also have received a copy of the GNU Lesser General Public ++ License along with this library in the file named "LICENSE". ++ If not, write to the Free Software Foundation, 51 Franklin Street, ++ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the ++ internet at http://www.fsf.org/licenses/lgpl.html. ++ ++Alternatively, the contents of this file may be used under the terms of the ++Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public ++License, as published by the Free Software Foundation, either version 2 ++of the License or (at your option) any later version. ++*/ ++#include "inc/Position.h" ++#include <cmath> ++ ++using namespace graphite2; ++ ++bool Rect::hitTest(Rect &other) ++{ ++ if (bl.x > other.tr.x) return false; ++ if (tr.x < other.bl.x) return false; ++ if (bl.y > other.tr.y) return false; ++ if (tr.y < other.bl.y) return false; ++ return true; ++} ++ ++Position Rect::overlap(Position &offset, Rect &other, Position &othero) ++{ ++ float ax = (bl.x + offset.x) - (other.tr.x + othero.x); ++ float ay = (bl.y + offset.y) - (other.tr.y + othero.y); ++ float bx = (other.bl.x + othero.x) - (tr.x + offset.x); ++ float by = (other.bl.y + othero.y) - (tr.y + offset.y); ++ return Position((ax > bx ? ax : bx), (ay > by ? ay : by)); ++} ++ ++float boundmin(float move, float lim1, float lim2, float &error) ++{ ++ // error is always positive for easy comparison ++ if (move < lim1 && move < lim2) ++ { error = 0.; return move; } ++ else if (lim1 < lim2) ++ { error = std::fabs(move - lim1); return lim1; } ++ else ++ { error = std::fabs(move - lim2); return lim2; } ++} ++ ++#if 0 ++Position Rect::constrainedAvoid(Position &offset, Rect &box, Rect &sdbox, Position &other, Rect &obox, Rect &osdbox) ++{ ++ // a = max, i = min, s = sum, d = diff ++ float eax, eay, eix, eiy, eas, eis, ead, eid; ++ float beste = INF; ++ Position res; ++ // calculate the movements in each direction and the error (amount of remaining overlap) ++ // first param is movement, second and third are movement over the constraining box ++ float ax = boundmin(obox.tr.x + other.x - box.bl.x - offset.x + 1, tr.x - offset.x, INF, &eax); ++ float ay = boundmin(obox.tr.y + other.y - box.bl.y - offset.y + 1, tr.y - offset.y, INF, &eay); ++ float ix = boundmin(obox.bl.x + other.x - box.tr.x - offset.x + 1, bl.x - offset.x, INF, &eix); ++ float iy = boundmin(obox.bl.y + other.y - box.tr.y - offset.y + 1, bl.y - offset.y, INF, &eiy); ++ float as = boundmin(ISQRT2 * (osdbox.tr.x + other.x + other.y - sdbox.bl.x - offset.x - offset.y) + 1, tr.x - offset.x, tr.y - offset.y, &eas); ++ float is = boundmin(ISQRT2 * (osdbox.bl.x + other.x + other.y - sdbox.tr.x - offset.x - offset.y) + 1, bl.x - offset.x, bl.y - offset.y, &eis); ++ float ad = boundmin(ISQRT2 * (osdbox.tr.y + other.x - other.y - sdbox.bl.y - offset.x + offset.y) + 1, tr.y - offset.y, tr.x - offset.x, &ead); ++ float id = boundmin(ISQRT2 * (osdbox.bl.y + other.x - other.y - sdbox.tr.y - offset.x + offset.y) + 1, bl.y - offset.y, bl.x - offset.x, &eid); ++ ++ if (eax < beste) ++ { res = Position(ax, 0); beste = eax; } ++ if (eay < beste) ++ { res = Position(0, ay); beste = eay; } ++ if (eix < beste) ++ { res = Position(ix, 0); beste = eix; } ++ if (eiy < beste) ++ { res = Position(0, iy); beste = eiy; } ++ if (SQRT2 * (eas) < beste) ++ { res = Position(as, ad); beste = SQRT2 * (eas); } ++ if (SQRT2 * (eis) < beste) ++ { res = Position(is, is); beste = SQRT2 * (eis); } ++ if (SQRT2 * (ead) < beste) ++ { res = Position(ad, ad); beste = SQRT2 * (ead); } ++ if (SQRT2 * (eid) < beste) ++ { res = Position(id, id); beste = SQRT2 * (eid); } ++ return res; ++} ++#endif ++ +diff --git a/gfx/graphite2/src/SegCache.cpp b/gfx/graphite2/src/SegCache.cpp +--- a/gfx/graphite2/src/SegCache.cpp ++++ b/gfx/graphite2/src/SegCache.cpp +@@ -35,17 +35,17 @@ of the License or (at your option) any l + + + using namespace graphite2; + + #ifndef GRAPHITE2_NSEGCACHE + + SegCache::SegCache(const SegCacheStore * store, const Features & feats) + : m_prefixLength(ePrefixLength), +- m_maxCachedSegLength(eMaxSpliceSize), ++// m_maxCachedSegLength(eMaxSpliceSize), + m_segmentCount(0), + m_features(feats), + m_totalAccessCount(0l), m_totalMisses(0l), + m_purgeFactor(1.0f / (ePurgeFactor * store->maxSegmentCount())) + { + m_prefixes.raw = grzeroalloc<void*>(store->maxCmapGid() + 2); + m_prefixes.range[SEG_CACHE_MIN_INDEX] = SEG_CACHE_UNSET_INDEX; + m_prefixes.range[SEG_CACHE_MAX_INDEX] = SEG_CACHE_UNSET_INDEX; +@@ -79,17 +79,17 @@ SegCache::~SegCache() + { + assert(m_prefixes.raw == NULL); + } + + SegCacheEntry* SegCache::cache(SegCacheStore * store, const uint16* cmapGlyphs, size_t length, Segment * seg, size_t charOffset) + { + uint16 pos = 0; + if (!length) return NULL; +- assert(length < m_maxCachedSegLength); ++// assert(length < m_maxCachedSegLength); + SegCachePrefixArray pArray = m_prefixes; + while (pos + 1 < m_prefixLength) + { + uint16 gid = (pos < length)? cmapGlyphs[pos] : 0; + if (!pArray.array[gid].raw) + { + pArray.array[gid].raw = grzeroalloc<void*>(store->maxCmapGid() + 2); + if (!pArray.array[gid].raw) +diff --git a/gfx/graphite2/src/Segment.cpp b/gfx/graphite2/src/Segment.cpp +--- a/gfx/graphite2/src/Segment.cpp ++++ b/gfx/graphite2/src/Segment.cpp +@@ -31,48 +31,53 @@ of the License or (at your option) any l + #include "inc/bits.h" + #include "inc/Segment.h" + #include "graphite2/Font.h" + #include "inc/CharInfo.h" + #include "inc/debug.h" + #include "inc/Slot.h" + #include "inc/Main.h" + #include "inc/CmapCache.h" +-#include "inc/Bidi.h" ++#include "inc/Collider.h" + #include "graphite2/Segment.h" + + + using namespace graphite2; + + Segment::Segment(unsigned int numchars, const Face* face, uint32 script, int textDir) + : m_freeSlots(NULL), + m_freeJustifies(NULL), + m_charinfo(new CharInfo[numchars]), ++ m_collisions(NULL), + m_face(face), + m_silf(face->chooseSilf(script)), + m_first(NULL), + m_last(NULL), + m_bufSize(numchars + 10), + m_numGlyphs(numchars), + m_numCharinfo(numchars), + m_passBits(m_silf->aPassBits() ? -1 : 0), + m_defaultOriginal(0), +- m_dir(textDir) ++ m_dir(textDir), ++ m_flags(((m_silf->flags() & 0x20) != 0) << 1) + { + freeSlot(newSlot()); + m_bufSize = log_binary(numchars)+1; + } + + Segment::~Segment() + { + for (SlotRope::iterator i = m_slots.begin(); i != m_slots.end(); ++i) + free(*i); +- for (AttributeRope::iterator j = m_userAttrs.begin(); j != m_userAttrs.end(); ++j) +- free(*j); ++ for (AttributeRope::iterator i = m_userAttrs.begin(); i != m_userAttrs.end(); ++i) ++ free(*i); ++ for (JustifyRope::iterator i = m_justifies.begin(); i != m_justifies.end(); ++i) ++ free(*i); + delete[] m_charinfo; ++ free(m_collisions); + } + + #ifndef GRAPHITE2_NSEGCACHE + SegmentScopeState Segment::setScope(Slot * firstSlot, Slot * lastSlot, size_t subLength) + { + SegmentScopeState state; + state.numGlyphsOutsideScope = m_numGlyphs - subLength; + state.realFirstSlot = m_first; +@@ -159,28 +164,35 @@ void Segment::appendSlot(int id, int cid + m_passBits &= theGlyph->attrs()[m_silf->aPassBits()] + | (m_silf->numPasses() > 16 ? (theGlyph->attrs()[m_silf->aPassBits() + 1] << 16) : 0); + } + + Slot *Segment::newSlot() + { + if (!m_freeSlots) + { ++ // check that the segment doesn't grow indefinintely ++ if (m_numGlyphs > m_numCharinfo * MAX_SEG_GROWTH_FACTOR) ++ return NULL; + int numUser = m_silf->numUser(); + #if !defined GRAPHITE2_NTRACING + if (m_face->logger()) ++numUser; + #endif + Slot *newSlots = grzeroalloc<Slot>(m_bufSize); +- int16 *newAttrs = grzeroalloc<int16>(numUser * m_bufSize); +- if (!newSlots || !newAttrs) return NULL; ++ int16 *newAttrs = grzeroalloc<int16>(m_bufSize * numUser); ++ if (!newSlots || !newAttrs) ++ { ++ free(newSlots); ++ free(newAttrs); ++ return NULL; ++ } + for (size_t i = 0; i < m_bufSize; i++) + { ++ ::new (newSlots + i) Slot(newAttrs + i * numUser); + newSlots[i].next(newSlots + i + 1); +- newSlots[i].userAttrs(newAttrs + i * numUser); +- newSlots[i].setBidiClass(-1); + } + newSlots[m_bufSize - 1].next(NULL); + newSlots[0].next(NULL); + m_slots.push_back(newSlots); + m_userAttrs.push_back(newAttrs); + m_freeSlots = (m_bufSize > 1)? newSlots + 1 : NULL; + return newSlots; + } +@@ -197,17 +209,17 @@ void Segment::freeSlot(Slot *aSlot) + if (aSlot->attachedTo()) + aSlot->attachedTo()->removeChild(aSlot); + while (aSlot->firstChild()) + { + aSlot->firstChild()->attachTo(NULL); + aSlot->removeChild(aSlot->firstChild()); + } + // reset the slot incase it is reused +- ::new (aSlot) Slot; ++ ::new (aSlot) Slot(aSlot->userAttrs()); + memset(aSlot->userAttrs(), 0, m_silf->numUser() * sizeof(int16)); + // Update generation counter for debug + #if !defined GRAPHITE2_NTRACING + if (m_face->logger()) + ++aSlot->userAttrs()[m_silf->numUser()]; + #endif + // update next pointer + if (!m_freeSlots) +@@ -301,16 +313,71 @@ void Segment::splice(size_t offset, size + slot->set(*srcSlot, offset, m_silf->numUser(), m_silf->numJustLevels(), numChars); + if (srcSlot->attachedTo()) slot->attachTo(indexmap[srcSlot->attachedTo()->index()]); + if (srcSlot->nextSibling()) slot->m_sibling = indexmap[srcSlot->nextSibling()->index()]; + if (srcSlot->firstChild()) slot->m_child = indexmap[srcSlot->firstChild()->index()]; + } + } + #endif // GRAPHITE2_NSEGCACHE + ++// reverse the slots but keep diacritics in their same position after their bases ++void Segment::reverseSlots() ++{ ++ m_dir = m_dir ^ 64; // invert the reverse flag ++ if (m_first == m_last) return; // skip 0 or 1 glyph runs ++ ++ Slot *t = 0; ++ Slot *curr = m_first; ++ Slot *tlast; ++ Slot *tfirst; ++ Slot *out = 0; ++ ++ while (curr && getSlotBidiClass(curr) == 16) ++ curr = curr->next(); ++ if (!curr) return; ++ tfirst = curr->prev(); ++ tlast = curr; ++ ++ while (curr) ++ { ++ if (getSlotBidiClass(curr) == 16) ++ { ++ Slot *d = curr->next(); ++ while (d && getSlotBidiClass(d) == 16) ++ d = d->next(); ++ ++ d = d ? d->prev() : m_last; ++ Slot *p = out->next(); // one after the diacritics. out can't be null ++ if (p) ++ p->prev(d); ++ else ++ tlast = d; ++ t = d->next(); ++ d->next(p); ++ curr->prev(out); ++ out->next(curr); ++ } ++ else // will always fire first time round the loop ++ { ++ if (out) ++ out->prev(curr); ++ t = curr->next(); ++ curr->next(out); ++ out = curr; ++ } ++ curr = t; ++ } ++ out->prev(tfirst); ++ if (tfirst) ++ tfirst->next(out); ++ else ++ m_first = out; ++ m_last = tlast; ++} ++ + void Segment::linkClusters(Slot *s, Slot * end) + { + end = end->next(); + + for (; s != end && !s->isBase(); s = s->next()); + Slot * ls = s; + + if (m_dir & 1) +@@ -330,39 +397,47 @@ void Segment::linkClusters(Slot *s, Slot + if (!s->isBase()) continue; + + ls->sibling(s); + ls = s; + } + } + } + +-Position Segment::positionSlots(const Font *font, Slot * iStart, Slot * iEnd) ++Position Segment::positionSlots(const Font *font, Slot * iStart, Slot * iEnd, bool isRtl, bool isFinal) + { + Position currpos(0., 0.); + float clusterMin = 0.; + Rect bbox; + ++ if (currdir() != isRtl) ++ { ++ Slot *temp; ++ reverseSlots(); ++ temp = iStart; ++ iStart = iEnd; ++ iEnd = temp; ++ } + if (!iStart) iStart = m_first; + if (!iEnd) iEnd = m_last; + +- if (m_dir & 1) ++ if (isRtl) + { + for (Slot * s = iEnd, * const end = iStart->prev(); s && s != end; s = s->prev()) + { + if (s->isBase()) +- currpos = s->finalise(this, font, currpos, bbox, 0, clusterMin = currpos.x); ++ currpos = s->finalise(this, font, currpos, bbox, 0, clusterMin = currpos.x, isRtl, isFinal); + } + } + else + { + for (Slot * s = iStart, * const end = iEnd->next(); s && s != end; s = s->next()) + { + if (s->isBase()) +- currpos = s->finalise(this, font, currpos, bbox, 0, clusterMin = currpos.x); ++ currpos = s->finalise(this, font, currpos, bbox, 0, clusterMin = currpos.x, isRtl, isFinal); + } + } + return currpos; + } + + + void Segment::associateChars(int offset, int numChars) + { +@@ -429,66 +504,28 @@ bool Segment::read_text(const Face *face + { + case gr_utf8: process_utf_data(*this, *face, addFeatures(*pFeats), utf8::const_iterator(pStart), nChars); break; + case gr_utf16: process_utf_data(*this, *face, addFeatures(*pFeats), utf16::const_iterator(pStart), nChars); break; + case gr_utf32: process_utf_data(*this, *face, addFeatures(*pFeats), utf32::const_iterator(pStart), nChars); break; + } + return true; + } + +-void Segment::prepare_pos(const Font * /*font*/) ++void Segment::doMirror(uint16 aMirror) + { +- // copy key changeable metrics into slot (if any); +-} +- +-Slot *process_bidi(Slot *start, int level, int prelevel, int &nextLevel, int dirover, int isol, int &cisol, int &isolerr, int &embederr, int init, Segment *seg, uint8 aMirror, BracketPairStack &stack); +-void resolveImplicit(Slot *s, Segment *seg, uint8 aMirror); +-void resolveWhitespace(int baseLevel, Slot *s); +-Slot *resolveOrder(Slot * & s, const bool reordered, const int level = 0); +- +-void Segment::bidiPass(uint8 aBidi, int paradir, uint8 aMirror) +-{ +- if (slotCount() == 0) +- return; +- +- Slot *s; +- int baseLevel = paradir ? 1 : 0; +- unsigned int bmask = 0; +- unsigned int ssize = 0; +- for (s = first(); s; s = s->next()) ++ Slot * s; ++ for (s = m_first; s; s = s->next()) + { +- if (s->getBidiClass() == -1) +- { +- unsigned int bAttr = glyphAttr(s->gid(), aBidi); +- s->setBidiClass((bAttr <= 22) * bAttr); +- } +- bmask |= (1 << s->getBidiClass()); +- s->setBidiLevel(baseLevel); +- if (glyphAttr(s->gid(), aMirror) && s->getBidiClass() == 21) +- ++ssize; +- } +- +- BracketPairStack bstack(ssize); +- if (bmask & (paradir ? 0x2E7892 : 0x2E789C)) +- { +- // O(8N) algorithm, with no working data beyond what is needed for processParens +- int nextLevel = paradir; +- int e, i, c; +- process_bidi(first(), baseLevel, paradir, nextLevel, 0, 0, c = 0, i = 0, e = 0, 1, this, aMirror, bstack); +- resolveImplicit(first(), this, aMirror); +- resolveWhitespace(baseLevel, last()); +- s = resolveOrder(s = first(), baseLevel != 0); +- if (s) +- { +- first(s); last(s->prev()); +- s->prev()->next(0); s->prev(0); +- } +- } +- else if (!(dir() & 4) && baseLevel && aMirror) +- { +- for (s = first(); s; s = s->next()) +- { +- unsigned short g = glyphAttr(s->gid(), aMirror); +- if (g) s->setGlyph(this, g); +- } ++ unsigned short g = glyphAttr(s->gid(), aMirror); ++ if (g && (!(dir() & 4) || !glyphAttr(s->gid(), aMirror + 1))) ++ s->setGlyph(this, g); + } + } + ++bool Segment::initCollisions() ++{ ++ m_collisions = grzeroalloc<SlotCollision>(slotCount()); ++ if (!m_collisions) return false; ++ ++ for (Slot *p = m_first; p; p = p->next()) ++ ::new (collisionInfo(p)) SlotCollision(this, p); ++ return true; ++} +diff --git a/gfx/graphite2/src/Silf.cpp b/gfx/graphite2/src/Silf.cpp +--- a/gfx/graphite2/src/Silf.cpp ++++ b/gfx/graphite2/src/Silf.cpp +@@ -46,23 +46,25 @@ Silf::Silf() throw() + m_justs(0), + m_numPasses(0), + m_numJusts(0), + m_sPass(0), + m_pPass(0), + m_jPass(0), + m_bPass(0), + m_flags(0), ++ m_dir(0), + m_aPseudo(0), + m_aBreak(0), + m_aUser(0), + m_aBidi(0), + m_aMirror(0), + m_aPassBits(0), + m_iMaxComp(0), ++ m_aCollision(0), + m_aLig(0), + m_numPseudo(0), + m_nClass(0), + m_nLinear(0), + m_gEndLine(0) + { + memset(&m_silfinfo, 0, sizeof m_silfinfo); + } +@@ -88,16 +90,20 @@ void Silf::releaseBuffers() throw() + + + bool Silf::readGraphite(const byte * const silf_start, size_t lSilf, Face& face, uint32 version) + { + const byte * p = silf_start, + * const silf_end = p + lSilf; + Error e; + ++ if (e.test(version >= 0x00060000, E_BADSILFVERSION)) ++ { ++ releaseBuffers(); return face.error(e); ++ } + if (version >= 0x00030000) + { + if (e.test(lSilf < 28, E_BADSIZE)) { releaseBuffers(); return face.error(e); } + be::skip<int32>(p); // ruleVersion + be::skip<uint16>(p,2); // passOffset & pseudosOffset + } + else if (e.test(lSilf < 20, E_BADSIZE)) { releaseBuffers(); return face.error(e); } + const uint16 maxGlyph = be::read<uint16>(p); +@@ -132,73 +138,88 @@ bool Silf::readGraphite(const byte * con + for (uint8 i = 0; i < m_numJusts; i++) + { + ::new(m_justs + i) Justinfo(p[0], p[1], p[2], p[3]); + be::skip<byte>(p,8); + } + } + + if (e.test(p + sizeof(uint16) + sizeof(uint8)*8 >= silf_end, E_BADENDJUSTS)) { releaseBuffers(); return face.error(e); } +- m_aLig = be::read<uint16>(p); +- m_aUser = be::read<uint8>(p); +- m_iMaxComp = be::read<uint8>(p); +- be::skip<byte>(p,5); // direction and 4 reserved bytes ++ m_aLig = be::read<uint16>(p); ++ m_aUser = be::read<uint8>(p); ++ m_iMaxComp = be::read<uint8>(p); ++ m_dir = be::read<uint8>(p) - 1; ++ m_aCollision = be::read<uint8>(p); ++ be::skip<byte>(p,3); + be::skip<uint16>(p, be::read<uint8>(p)); // don't need critical features yet + be::skip<byte>(p); // reserved + if (e.test(p >= silf_end, E_BADCRITFEATURES)) { releaseBuffers(); return face.error(e); } + be::skip<uint32>(p, be::read<uint8>(p)); // don't use scriptTag array. + if (e.test(p + sizeof(uint16) + sizeof(uint32) >= silf_end, E_BADSCRIPTTAGS)) { releaseBuffers(); return face.error(e); } + m_gEndLine = be::read<uint16>(p); // lbGID + const byte * o_passes = p, + * const passes_start = silf_start + be::read<uint32>(p); + + const size_t num_attrs = face.glyphs().numAttrs(); + if (e.test(m_aPseudo >= num_attrs, E_BADAPSEUDO) + || e.test(m_aBreak >= num_attrs, E_BADABREAK) + || e.test(m_aBidi >= num_attrs, E_BADABIDI) + || e.test(m_aMirror>= num_attrs, E_BADAMIRROR) ++ || e.test(m_aCollision && m_aCollision >= num_attrs - 5, E_BADACOLLISION) + || e.test(m_numPasses > 128, E_BADNUMPASSES) || e.test(passes_start >= silf_end, E_BADPASSESSTART) + || e.test(m_pPass < m_sPass, E_BADPASSBOUND) || e.test(m_pPass > m_numPasses, E_BADPPASS) || e.test(m_sPass > m_numPasses, E_BADSPASS) + || e.test(m_jPass < m_pPass, E_BADJPASSBOUND) || e.test(m_jPass > m_numPasses, E_BADJPASS) + || e.test((m_bPass != 0xFF && (m_bPass < m_jPass || m_bPass > m_numPasses)), E_BADBPASS) + || e.test(m_aLig > 127, E_BADALIG)) + { + releaseBuffers(); + return face.error(e); + } + be::skip<uint32>(p, m_numPasses); + if (e.test(p + sizeof(uint16) >= passes_start, E_BADPASSESSTART)) { releaseBuffers(); return face.error(e); } + m_numPseudo = be::read<uint16>(p); + be::skip<uint16>(p, 3); // searchPseudo, pseudoSelector, pseudoShift +- if (e.test(p + m_numPseudo*(sizeof(uint32) + sizeof(uint16)) >= passes_start, E_BADNUMPSEUDO)) ++ m_pseudos = new Pseudo[m_numPseudo]; ++ if (e.test(p + m_numPseudo*(sizeof(uint32) + sizeof(uint16)) >= passes_start, E_BADNUMPSEUDO) ++ || e.test(!m_pseudos, E_OUTOFMEM)) + { + releaseBuffers(); return face.error(e); + } +- m_pseudos = new Pseudo[m_numPseudo]; + for (int i = 0; i < m_numPseudo; i++) + { + m_pseudos[i].uid = be::read<uint32>(p); + m_pseudos[i].gid = be::read<uint16>(p); + } + + const size_t clen = readClassMap(p, passes_start - p, version, e); +- if (e || e.test(p + clen > passes_start, E_BADPASSESSTART)) { releaseBuffers(); return face.error(e); } ++ m_passes = new Pass[m_numPasses]; ++ if (e || e.test(p + clen > passes_start, E_BADPASSESSTART) ++ || e.test(!m_passes, E_OUTOFMEM)) ++ { releaseBuffers(); return face.error(e); } + +- m_passes = new Pass[m_numPasses]; + for (size_t i = 0; i < m_numPasses; ++i) + { + const byte * const pass_start = silf_start + be::read<uint32>(o_passes), + * const pass_end = silf_start + be::peek<uint32>(o_passes); + face.error_context((face.error_context() & 0xFF00) + EC_ASILF + (i << 16)); +- if (e.test(pass_start > pass_end, E_BADPASSSTART) || e.test(pass_end > silf_end, E_BADPASSEND)) { ++ if (e.test(pass_start > pass_end, E_BADPASSSTART) ++ || e.test(pass_start < passes_start, E_BADPASSSTART) ++ || e.test(pass_end > silf_end, E_BADPASSEND)) { + releaseBuffers(); return face.error(e); + } + ++ enum passtype pt = PASS_TYPE_UNKNOWN; ++ if (i >= m_jPass) pt = PASS_TYPE_JUSTIFICATION; ++ else if (i >= m_pPass) pt = PASS_TYPE_POSITIONING; ++ else if (i >= m_sPass) pt = PASS_TYPE_SUBSTITUTE; ++ else pt = PASS_TYPE_LINEBREAK; ++ + m_passes[i].init(this); +- if (!m_passes[i].readPass(pass_start, pass_end - pass_start, pass_start - silf_start, face, e)) ++ if (!m_passes[i].readPass(pass_start, pass_end - pass_start, pass_start - silf_start, face, pt, ++ version, e)) + { + releaseBuffers(); + return false; + } + } + + // fill in gr_faceinfo + m_silfinfo.upem = face.glyphs().unitsPerEm(); +@@ -246,35 +267,38 @@ size_t Silf::readClassMap(const byte *p, + uint32 max_off; + if (version >= 0x00040000) + max_off = readClassOffsets<uint32>(p, data_len, e); + else + max_off = readClassOffsets<uint16>(p, data_len, e); + + if (max_off == ERROROFFSET) return ERROROFFSET; + ++ if (e.test((int)max_off < m_nLinear + (m_nClass - m_nLinear) * 6, E_CLASSESTOOBIG)) ++ return ERROROFFSET; ++ + // Check the linear offsets are sane, these must be monotonically increasing. + for (const uint32 *o = m_classOffsets, * const o_end = o + m_nLinear; o != o_end; ++o) + if (e.test(o[0] > o[1], E_BADCLASSOFFSET)) + return ERROROFFSET; + + // Fortunately the class data is all uint16s so we can decode these now + m_classData = gralloc<uint16>(max_off); + if (e.test(!m_classData, E_OUTOFMEM)) return ERROROFFSET; + for (uint16 *d = m_classData, * const d_end = d + max_off; d != d_end; ++d) + *d = be::read<uint16>(p); + + // Check the lookup class invariants for each non-linear class + for (const uint32 *o = m_classOffsets + m_nLinear, * const o_end = m_classOffsets + m_nClass; o != o_end; ++o) + { + const uint16 * lookup = m_classData + *o; +- if (e.test(*o > max_off - 4, E_HIGHCLASSOFFSET) // LookupClass doesn't stretch over max_off ++ if (e.test(*o + 4 > max_off, E_HIGHCLASSOFFSET) // LookupClass doesn't stretch over max_off + || e.test(lookup[0] == 0 // A LookupClass with no looks is a suspicious thing ... +- || lookup[0] > (max_off - *o - 4)/2 // numIDs lookup pairs fits within (start of LookupClass' lookups array, max_off] +- || lookup[3] != lookup[0] - lookup[1], E_BADCLASSLOOKUPINFO)) // rangeShift: numIDs - searchRange ++ || lookup[0] * 2 + *o + 4 > max_off // numIDs lookup pairs fits within (start of LookupClass' lookups array, max_off] ++ || lookup[3] + lookup[1] != lookup[0], E_BADCLASSLOOKUPINFO)) // rangeShift: numIDs - searchRange + return ERROROFFSET; + } + + return max_off; + } + + uint16 Silf::findPseudo(uint32 uid) const + { +@@ -285,17 +309,17 @@ uint16 Silf::findPseudo(uint32 uid) cons + + uint16 Silf::findClassIndex(uint16 cid, uint16 gid) const + { + if (cid > m_nClass) return -1; + + const uint16 * cls = m_classData + m_classOffsets[cid]; + if (cid < m_nLinear) // output class being used for input, shouldn't happen + { +- for (unsigned int i = 0, n = m_classOffsets[cid + 1]; i < n; ++i, ++cls) ++ for (unsigned int i = 0, n = m_classOffsets[cid + 1] - m_classOffsets[cid]; i < n; ++i, ++cls) + if (*cls == gid) return i; + return -1; + } + else + { + const uint16 * min = cls + 4, // lookups array + * max = min + cls[0]*2; // lookups aray is numIDs (cls[0]) uint16 pairs long + do +@@ -326,90 +350,82 @@ uint16 Silf::getClassGlyph(uint16 cid, u + } + return 0; + } + + + bool Silf::runGraphite(Segment *seg, uint8 firstPass, uint8 lastPass, int dobidi) const + { + assert(seg != 0); +- SlotMap map(*seg); ++ SlotMap map(*seg, m_dir); + FiniteStateMachine fsm(map, seg->getFace()->logger()); + vm::Machine m(map); + unsigned int initSize = seg->slotCount(); + uint8 lbidi = m_bPass; + #if !defined GRAPHITE2_NTRACING + json * const dbgout = seg->getFace()->logger(); + #endif + + if (lastPass == 0) + { + if (firstPass == lastPass && lbidi == 0xFF) + return true; + lastPass = m_numPasses; + } +- if (firstPass <= lbidi && lastPass >= lbidi && dobidi) ++ if ((firstPass < lbidi || (dobidi && firstPass == lbidi)) && (lastPass >= lbidi || (dobidi && lastPass + 1 == lbidi))) + lastPass++; + else + lbidi = 0xFF; + + for (size_t i = firstPass; i < lastPass; ++i) + { + // bidi and mirroring + if (i == lbidi) + { + #if !defined GRAPHITE2_NTRACING + if (dbgout) + { + *dbgout << json::item << json::object + << "id" << -1 + << "slots" << json::array; +- seg->positionSlots(0); ++ seg->positionSlots(0, 0, 0, m_dir); + for(Slot * s = seg->first(); s; s = s->next()) + *dbgout << dslot(seg, s); + *dbgout << json::close + << "rules" << json::array << json::close + << json::close; + } + #endif +- +- if (!(seg->dir() & 2)) +- seg->bidiPass(m_aBidi, seg->dir() & 1, m_aMirror); +- else if (m_aMirror) +- { +- Slot * s; +- for (s = seg->first(); s; s = s->next()) +- { +- unsigned short g = seg->glyphAttr(s->gid(), m_aMirror); +- if (g && (!(seg->dir() & 4) || !seg->glyphAttr(s->gid(), m_aMirror + 1))) +- s->setGlyph(seg, g); +- } +- } ++ if (seg->currdir() != (m_dir & 1)) ++ seg->reverseSlots(); ++ if (m_aMirror && (seg->dir() & 3) == 3) ++ seg->doMirror(m_aMirror); + --i; ++ lbidi = lastPass; + --lastPass; +- lbidi = 0xFF; + continue; + } + + #if !defined GRAPHITE2_NTRACING + if (dbgout) + { + *dbgout << json::item << json::object + << "id" << i+1 + << "slots" << json::array; +- seg->positionSlots(0); ++ seg->positionSlots(0, 0, 0, m_dir); + for(Slot * s = seg->first(); s; s = s->next()) + *dbgout << dslot(seg, s); + *dbgout << json::close; + } + #endif + + // test whether to reorder, prepare for positioning +- if (i >= 32 || (seg->passBits() & (1 << i)) == 0) +- m_passes[i].runGraphite(m, fsm); ++ bool reverse = (lbidi == 0xFF) && (seg->currdir() != ((m_dir & 1) ^ m_passes[i].reverseDir())); ++ if ((i >= 32 || (seg->passBits() & (1 << i)) == 0 || m_passes[i].collisionLoops()) ++ && !m_passes[i].runGraphite(m, fsm, reverse)) ++ return false; + // only subsitution passes can change segment length, cached subsegments are short for their text + if (m.status() != vm::Machine::finished +- || (i < m_pPass && (seg->slotCount() > initSize * MAX_SEG_GROWTH_FACTOR +- || (seg->slotCount() && seg->slotCount() * MAX_SEG_GROWTH_FACTOR < initSize)))) ++ || (seg->slotCount() && seg->slotCount() * MAX_SEG_GROWTH_FACTOR < initSize)) + return false; + } + return true; + } +diff --git a/gfx/graphite2/src/Slot.cpp b/gfx/graphite2/src/Slot.cpp +--- a/gfx/graphite2/src/Slot.cpp ++++ b/gfx/graphite2/src/Slot.cpp +@@ -24,34 +24,34 @@ Mozilla Public License (http://mozilla.o + License, as published by the Free Software Foundation, either version 2 + of the License or (at your option) any later version. + */ + #include "inc/Segment.h" + #include "inc/Slot.h" + #include "inc/Silf.h" + #include "inc/CharInfo.h" + #include "inc/Rule.h" ++#include "inc/Collider.h" + + + using namespace graphite2; + +-Slot::Slot() : ++Slot::Slot(int16 *user_attrs) : + m_next(NULL), m_prev(NULL), + m_glyphid(0), m_realglyphid(0), m_original(0), m_before(0), m_after(0), + m_index(0), m_parent(NULL), m_child(NULL), m_sibling(NULL), + m_position(0, 0), m_shift(0, 0), m_advance(0, 0), + m_attach(0, 0), m_with(0, 0), m_just(0.), +- m_flags(0), m_attLevel(0), m_bidiCls(-1), m_bidiLevel(0), m_justs(NULL) +- // Do not set m_userAttr since it is set *before* new is called since this +- // is used as a positional new to reset the GrSlot ++ m_flags(0), m_attLevel(0), m_bidiCls(-1), m_bidiLevel(0), ++ m_userAttr(user_attrs), m_justs(NULL) + { + } + + // take care, this does not copy any of the GrSlot pointer fields +-void Slot::set(const Slot & orig, int charOffset, size_t numUserAttr, size_t justLevels, size_t numChars) ++void Slot::set(const Slot & orig, int charOffset, size_t sizeAttr, size_t justLevels, size_t numChars) + { + // leave m_next and m_prev unchanged + m_glyphid = orig.m_glyphid; + m_realglyphid = orig.m_realglyphid; + m_original = orig.m_original + charOffset; + if (charOffset + int(orig.m_before) < 0) + m_before = 0; + else +@@ -68,95 +68,104 @@ void Slot::set(const Slot & orig, int ch + m_advance = orig.m_advance; + m_attach = orig.m_attach; + m_with = orig.m_with; + m_flags = orig.m_flags; + m_attLevel = orig.m_attLevel; + m_bidiCls = orig.m_bidiCls; + m_bidiLevel = orig.m_bidiLevel; + if (m_userAttr && orig.m_userAttr) +- memcpy(m_userAttr, orig.m_userAttr, numUserAttr * sizeof(*m_userAttr)); ++ memcpy(m_userAttr, orig.m_userAttr, sizeAttr * sizeof(*m_userAttr)); + if (m_justs && orig.m_justs) + memcpy(m_justs, orig.m_justs, SlotJustify::size_of(justLevels)); + } + + void Slot::update(int /*numGrSlots*/, int numCharInfo, Position &relpos) + { + m_before += numCharInfo; + m_after += numCharInfo; + m_position = m_position + relpos; + } + +-Position Slot::finalise(const Segment *seg, const Font *font, Position & base, Rect & bbox, uint8 attrLevel, float & clusterMin) ++Position Slot::finalise(const Segment *seg, const Font *font, Position & base, Rect & bbox, uint8 attrLevel, float & clusterMin, bool rtl, bool isFinal) + { ++ SlotCollision *coll = NULL; + if (attrLevel && m_attLevel > attrLevel) return Position(0, 0); +- float scale = 1.0; +- Position shift(m_shift.x * ((seg->dir() & 1) * -2 + 1) + m_just, m_shift.y); ++ float scale = font ? font->scale() : 1.0f; ++ Position shift(m_shift.x * (rtl * -2 + 1) + m_just, m_shift.y); + float tAdvance = m_advance.x + m_just; ++ if (isFinal && (coll = seg->collisionInfo(this))) ++ { ++ const Position &collshift = coll->offset(); ++ if (!(coll->flags() & SlotCollision::COLL_KERN) || rtl) ++ shift = shift + collshift; ++ } + const GlyphFace * glyphFace = seg->getFace()->glyphs().glyphSafe(glyph()); + if (font) + { + scale = font->scale(); + shift *= scale; + if (font->isHinted() && glyphFace) +- tAdvance = (m_advance.x - glyphFace->theAdvance().x + m_just) * scale + font->advance(m_glyphid); ++ tAdvance = (m_advance.x - glyphFace->theAdvance().x + m_just) * scale + font->advance(glyph()); + else + tAdvance *= scale; + } + Position res; + + m_position = base + shift; + if (!m_parent) + { + res = base + Position(tAdvance, m_advance.y * scale); +- clusterMin = base.x; ++ clusterMin = m_position.x; + } + else + { + float tAdv; + m_position += (m_attach - m_with) * scale; +- tAdv = m_advance.x >= 0.5 ? m_position.x + tAdvance - shift.x : 0.f; ++ tAdv = m_advance.x >= 0.5f ? m_position.x + tAdvance - shift.x : 0.f; + res = Position(tAdv, 0); +- if ((m_advance.x >= 0.5 || m_position.x < 0) && m_position.x < clusterMin) clusterMin = m_position.x; ++ if ((m_advance.x >= 0.5f || m_position.x < 0) && m_position.x < clusterMin) clusterMin = m_position.x; + } + + if (glyphFace) + { + Rect ourBbox = glyphFace->theBBox() * scale + m_position; + bbox = bbox.widen(ourBbox); + } + + if (m_child && m_child != this && m_child->attachedTo() == this) + { +- Position tRes = m_child->finalise(seg, font, m_position, bbox, attrLevel, clusterMin); +- if ((!m_parent || m_advance.x >= 0.5) && tRes.x > res.x) res = tRes; ++ Position tRes = m_child->finalise(seg, font, m_position, bbox, attrLevel, clusterMin, rtl, isFinal); ++ if ((!m_parent || m_advance.x >= 0.5f) && tRes.x > res.x) res = tRes; + } + + if (m_parent && m_sibling && m_sibling != this && m_sibling->attachedTo() == m_parent) + { +- Position tRes = m_sibling->finalise(seg, font, base, bbox, attrLevel, clusterMin); ++ Position tRes = m_sibling->finalise(seg, font, base, bbox, attrLevel, clusterMin, rtl, isFinal); + if (tRes.x > res.x) res = tRes; + } + + if (!m_parent && clusterMin < base.x) + { +- Position adj = Position(base.x - clusterMin, 0.); ++ Position adj = Position(m_position.x - clusterMin, 0.); + res += adj; + m_position += adj; + if (m_child) m_child->floodShift(adj); + } + return res; + } + +-int32 Slot::clusterMetric(const Segment *seg, uint8 metric, uint8 attrLevel) ++int32 Slot::clusterMetric(const Segment *seg, uint8 metric, uint8 attrLevel, bool rtl) + { + Position base; ++ if (glyph() >= seg->getFace()->glyphs().numGlyphs()) ++ return 0; + Rect bbox = seg->theGlyphBBoxTemporary(glyph()); + float clusterMin = 0.; +- Position res = finalise(seg, NULL, base, bbox, attrLevel, clusterMin); ++ Position res = finalise(seg, NULL, base, bbox, attrLevel, clusterMin, rtl, false); + + switch (metrics(metric)) + { + case kgmetLsb : + return static_cast<uint32>(bbox.bl.x); + case kgmetRsb : + return static_cast<uint32>(res.x - bbox.tr.x); + case kgmetBbTop : +@@ -175,19 +184,20 @@ int32 Slot::clusterMetric(const Segment + return static_cast<uint32>(res.x); + case kgmetAdvHeight : + return static_cast<uint32>(res.y); + default : + return 0; + } + } + ++#define SLOTGETCOLATTR(x) { SlotCollision *c = seg->collisionInfo(this); return c ? int(c-> x) : 0; } ++ + int Slot::getAttr(const Segment *seg, attrCode ind, uint8 subindex) const + { +- if (!this) return 0; + if (ind == gr_slatUserDefnV1) + { + ind = gr_slatUserDefn; + subindex = 0; + } + else if (ind >= gr_slatJStretch && ind < gr_slatJStretch + 20 && ind != gr_slatJWidth) + { + int indx = ind - gr_slatJStretch; +@@ -205,37 +215,66 @@ int Slot::getAttr(const Segment *seg, at + case gr_slatAttYOff : return 0; + case gr_slatAttWithX : return int(m_with.x); + case gr_slatAttWithY : return int(m_with.y); + case gr_slatAttWithXOff: + case gr_slatAttWithYOff:return 0; + case gr_slatAttLevel : return m_attLevel; + case gr_slatBreak : return seg->charinfo(m_original)->breakWeight(); + case gr_slatCompRef : return 0; +- case gr_slatDir : if (m_bidiCls == -1) +- const_cast<Slot *>(this)->setBidiClass(seg->glyphAttr(gid(), seg->silf()->aBidi())); +- return m_bidiCls; ++ case gr_slatDir : return seg->dir() & 1; + case gr_slatInsert : return isInsertBefore(); + case gr_slatPosX : return int(m_position.x); // but need to calculate it + case gr_slatPosY : return int(m_position.y); + case gr_slatShiftX : return int(m_shift.x); + case gr_slatShiftY : return int(m_shift.y); + case gr_slatMeasureSol: return -1; // err what's this? + case gr_slatMeasureEol: return -1; + case gr_slatJWidth: return int(m_just); + case gr_slatUserDefn : return m_userAttr[subindex]; + case gr_slatSegSplit : return seg->charinfo(m_original)->flags() & 3; + case gr_slatBidiLevel: return m_bidiLevel; +- default : return 0; ++ case gr_slatColFlags : { SlotCollision *c = seg->collisionInfo(this); return c ? c->flags() : 0; } ++ case gr_slatColLimitblx : SLOTGETCOLATTR(limit().bl.x) ++ case gr_slatColLimitbly : SLOTGETCOLATTR(limit().bl.y) ++ case gr_slatColLimittrx : SLOTGETCOLATTR(limit().tr.x) ++ case gr_slatColLimittry : SLOTGETCOLATTR(limit().tr.y) ++ case gr_slatColShiftx : SLOTGETCOLATTR(offset().x) ++ case gr_slatColShifty : SLOTGETCOLATTR(offset().y) ++ case gr_slatColMargin : SLOTGETCOLATTR(margin()) ++ case gr_slatColMarginWt : SLOTGETCOLATTR(marginWt()) ++ case gr_slatColExclGlyph : SLOTGETCOLATTR(exclGlyph()) ++ case gr_slatColExclOffx : SLOTGETCOLATTR(exclOffset().x) ++ case gr_slatColExclOffy : SLOTGETCOLATTR(exclOffset().y) ++ case gr_slatSeqClass : SLOTGETCOLATTR(seqClass()) ++ case gr_slatSeqProxClass : SLOTGETCOLATTR(seqProxClass()) ++ case gr_slatSeqOrder : SLOTGETCOLATTR(seqOrder()) ++ case gr_slatSeqAboveXoff : SLOTGETCOLATTR(seqAboveXoff()) ++ case gr_slatSeqAboveWt : SLOTGETCOLATTR(seqAboveWt()) ++ case gr_slatSeqBelowXlim : SLOTGETCOLATTR(seqBelowXlim()) ++ case gr_slatSeqBelowWt : SLOTGETCOLATTR(seqBelowWt()) ++ case gr_slatSeqValignHt : SLOTGETCOLATTR(seqValignHt()) ++ case gr_slatSeqValignWt : SLOTGETCOLATTR(seqValignWt()) ++ default : return 0; + } + } + ++#define SLOTCOLSETATTR(x) { \ ++ SlotCollision *c = seg->collisionInfo(this); \ ++ if (c) { c-> x ; c->setFlags(c->flags() & ~SlotCollision::COLL_KNOWN); } \ ++ break; } ++#define SLOTCOLSETCOMPLEXATTR(t, y, x) { \ ++ SlotCollision *c = seg->collisionInfo(this); \ ++ if (c) { \ ++ const t &s = c-> y; \ ++ c-> x ; c->setFlags(c->flags() & ~SlotCollision::COLL_KNOWN); } \ ++ break; } ++ + void Slot::setAttr(Segment *seg, attrCode ind, uint8 subindex, int16 value, const SlotMap & map) + { +- if (!this) return; + if (ind == gr_slatUserDefnV1) + { + ind = gr_slatUserDefn; + subindex = 0; + } + else if (ind >= gr_slatJStretch && ind < gr_slatJStretch + 20 && ind != gr_slatJWidth) + { + int indx = ind - gr_slatJStretch; +@@ -247,22 +286,22 @@ void Slot::setAttr(Segment *seg, attrCod + case gr_slatAdvX : m_advance.x = value; break; + case gr_slatAdvY : m_advance.y = value; break; + case gr_slatAttTo : + { + const uint16 idx = uint16(value); + if (idx < map.size() && map[idx]) + { + Slot *other = map[idx]; +- if (other == this) break; ++ if (other == this || other == m_parent) break; + if (m_parent) m_parent->removeChild(this); +- if (other->child(this)) ++ if (!other->isChildOf(this) && other->child(this)) + { + attachTo(other); +- if (((seg->dir() & 1) != 0) ^ (idx > subindex)) ++ if ((map.dir() != 0) ^ (idx > subindex)) + m_with = Position(advance(), 0); + else // normal match to previous root + m_attach = Position(other->advance(), 0); + } + } + break; + } + case gr_slatAttX : m_attach.x = value; break; +@@ -275,29 +314,52 @@ void Slot::setAttr(Segment *seg, attrCod + case gr_slatAttWithYOff : break; + case gr_slatAttLevel : + m_attLevel = byte(value); + break; + case gr_slatBreak : + seg->charinfo(m_original)->breakWeight(value); + break; + case gr_slatCompRef : break; // not sure what to do here +- case gr_slatDir : m_bidiCls = value; break; ++ case gr_slatDir : break; + case gr_slatInsert : + markInsertBefore(value? true : false); + break; + case gr_slatPosX : break; // can't set these here + case gr_slatPosY : break; + case gr_slatShiftX : m_shift.x = value; break; + case gr_slatShiftY : m_shift.y = value; break; + case gr_slatMeasureSol : break; + case gr_slatMeasureEol : break; + case gr_slatJWidth : just(value); break; + case gr_slatSegSplit : seg->charinfo(m_original)->addflags(value & 3); break; + case gr_slatUserDefn : m_userAttr[subindex] = value; break; ++ case gr_slatColFlags : { ++ SlotCollision *c = seg->collisionInfo(this); ++ if (c) ++ c->setFlags(value); ++ break; } ++ case gr_slatColLimitblx : SLOTCOLSETCOMPLEXATTR(Rect, limit(), setLimit(Rect(Position(value, s.bl.y), s.tr))) ++ case gr_slatColLimitbly : SLOTCOLSETCOMPLEXATTR(Rect, limit(), setLimit(Rect(Position(s.bl.x, value), s.tr))) ++ case gr_slatColLimittrx : SLOTCOLSETCOMPLEXATTR(Rect, limit(), setLimit(Rect(s.bl, Position(value, s.tr.y)))) ++ case gr_slatColLimittry : SLOTCOLSETCOMPLEXATTR(Rect, limit(), setLimit(Rect(s.bl, Position(s.tr.x, value)))) ++ case gr_slatColMargin : SLOTCOLSETATTR(setMargin(value)) ++ case gr_slatColMarginWt : SLOTCOLSETATTR(setMarginWt(value)) ++ case gr_slatColExclGlyph : SLOTCOLSETATTR(setExclGlyph(value)) ++ case gr_slatColExclOffx : SLOTCOLSETCOMPLEXATTR(Position, exclOffset(), setExclOffset(Position(value, s.y))) ++ case gr_slatColExclOffy : SLOTCOLSETCOMPLEXATTR(Position, exclOffset(), setExclOffset(Position(s.x, value))) ++ case gr_slatSeqClass : SLOTCOLSETATTR(setSeqClass(value)) ++ case gr_slatSeqProxClass : SLOTCOLSETATTR(setSeqProxClass(value)) ++ case gr_slatSeqOrder : SLOTCOLSETATTR(setSeqOrder(value)) ++ case gr_slatSeqAboveXoff : SLOTCOLSETATTR(setSeqAboveXoff(value)) ++ case gr_slatSeqAboveWt : SLOTCOLSETATTR(setSeqAboveWt(value)) ++ case gr_slatSeqBelowXlim : SLOTCOLSETATTR(setSeqBelowXlim(value)) ++ case gr_slatSeqBelowWt : SLOTCOLSETATTR(setSeqBelowWt(value)) ++ case gr_slatSeqValignHt : SLOTCOLSETATTR(setSeqValignHt(value)) ++ case gr_slatSeqValignWt : SLOTCOLSETATTR(setSeqValignWt(value)) + default : + break; + } + } + + int Slot::getJustify(const Segment *seg, uint8 level, uint8 subindex) const + { + if (level && level >= seg->silf()->numJustLevels()) return 0; +@@ -369,46 +431,54 @@ bool Slot::removeChild(Slot *ap) + } + + bool Slot::removeSibling(Slot *ap) + { + if (this == ap || !m_sibling) return false; + else if (ap == m_sibling) + { + m_sibling = m_sibling->nextSibling(); ++ ap->sibling(NULL); + return true; + } + else + return m_sibling->removeSibling(ap); + return true; + } + + void Slot::setGlyph(Segment *seg, uint16 glyphid, const GlyphFace * theGlyph) + { + m_glyphid = glyphid; ++ m_bidiCls = -1; + if (!theGlyph) + { + theGlyph = seg->getFace()->glyphs().glyphSafe(glyphid); + if (!theGlyph) + { + m_realglyphid = 0; + m_advance = Position(0.,0.); + return; + } + } + m_realglyphid = theGlyph->attrs()[seg->silf()->aPseudo()]; ++ if (m_realglyphid > seg->getFace()->glyphs().numGlyphs()) ++ m_realglyphid = 0; + const GlyphFace *aGlyph = theGlyph; + if (m_realglyphid) + { + aGlyph = seg->getFace()->glyphs().glyphSafe(m_realglyphid); + if (!aGlyph) aGlyph = theGlyph; + } + m_advance = Position(aGlyph->theAdvance().x, 0.); + if (seg->silf()->aPassBits()) ++ { + seg->mergePassBits(theGlyph->attrs()[seg->silf()->aPassBits()]); ++ if (seg->silf()->numPasses() > 16) ++ seg->mergePassBits(theGlyph->attrs()[seg->silf()->aPassBits()+1] << 16); ++ } + } + + void Slot::floodShift(Position adj) + { + m_position += adj; + if (m_child) m_child->floodShift(adj); + if (m_sibling) m_sibling->floodShift(adj); + } +@@ -420,8 +490,35 @@ void SlotJustify::LoadSlot(const Slot *s + Justinfo *justs = seg->silf()->justAttrs() + i; + int16 *v = values + i * NUMJUSTPARAMS; + v[0] = seg->glyphAttr(s->gid(), justs->attrStretch()); + v[1] = seg->glyphAttr(s->gid(), justs->attrShrink()); + v[2] = seg->glyphAttr(s->gid(), justs->attrStep()); + v[3] = seg->glyphAttr(s->gid(), justs->attrWeight()); + } + } ++ ++Slot * Slot::nextInCluster(const Slot *s) const ++{ ++ Slot *base; ++ if (s->firstChild()) ++ return s->firstChild(); ++ else if (s->nextSibling()) ++ return s->nextSibling(); ++ while ((base = s->attachedTo())) ++ { ++ // if (base->firstChild() == s && base->nextSibling()) ++ if (base->nextSibling()) ++ return base->nextSibling(); ++ s = base; ++ } ++ return NULL; ++} ++ ++bool Slot::isChildOf(const Slot *base) const ++{ ++ if (m_parent == base) ++ return true; ++ else if (!m_parent) ++ return false; ++ else ++ return m_parent->isChildOf(base); ++} +diff --git a/gfx/graphite2/src/Sparse.cpp b/gfx/graphite2/src/Sparse.cpp +--- a/gfx/graphite2/src/Sparse.cpp ++++ b/gfx/graphite2/src/Sparse.cpp +@@ -25,17 +25,17 @@ License, as published by the Free Softwa + of the License or (at your option) any later version. + */ + #include <cassert> + #include "inc/Sparse.h" + #include "inc/bits.h" + + using namespace graphite2; + +-sparse::chunk sparse::empty_chunk = {0,0}; ++const sparse::chunk sparse::empty_chunk = {0,0}; + + sparse::~sparse() throw() + { + if (m_array.map == &empty_chunk) return; + free(m_array.values); + } + + +diff --git a/gfx/graphite2/src/TtfUtil.cpp b/gfx/graphite2/src/TtfUtil.cpp +--- a/gfx/graphite2/src/TtfUtil.cpp ++++ b/gfx/graphite2/src/TtfUtil.cpp +@@ -57,18 +57,20 @@ Description + Forward declarations + ***********************************************************************************************/ + + /*********************************************************************************************** + Local Constants and static variables + ***********************************************************************************************/ + namespace + { ++#ifdef ALL_TTFUTILS + // max number of components allowed in composite glyphs + const int kMaxGlyphComponents = 8; ++#endif + + template <int R, typename T> + inline float fixed_to_float(const T f) { + return float(f)/float(2^R); + } + + /*---------------------------------------------------------------------------------------------- + Table of standard Postscript glyph names. From Martin Hosken. Disagress with ttfdump.exe +@@ -222,69 +224,79 @@ bool GetTableInfo(const Tag TableTag, co + /*---------------------------------------------------------------------------------------------- + Check the specified table. Tests depend on the table type. + Return true if successful, false otherwise. + ----------------------------------------------------------------------------------------------*/ + bool CheckTable(const Tag TableId, const void * pTable, size_t lTableSize) + { + using namespace Sfnt; + +- if (pTable == 0) return false; ++ if (pTable == 0 || lTableSize < 4) return false; + + switch(TableId) + { + case Tag::cmap: // cmap + { + const Sfnt::CharacterCodeMap * const pCmap + = reinterpret_cast<const Sfnt::CharacterCodeMap *>(pTable); ++ if (lTableSize < sizeof(Sfnt::CharacterCodeMap)) ++ return false; + return be::swap(pCmap->version) == 0; + } + + case Tag::head: // head + { + const Sfnt::FontHeader * const pHead + = reinterpret_cast<const Sfnt::FontHeader *>(pTable); ++ if (lTableSize < sizeof(Sfnt::FontHeader)) ++ return false; + bool r = be::swap(pHead->version) == OneFix + && be::swap(pHead->magic_number) == FontHeader::MagicNumber + && be::swap(pHead->glyph_data_format) + == FontHeader::GlypDataFormat + && (be::swap(pHead->index_to_loc_format) + == FontHeader::ShortIndexLocFormat + || be::swap(pHead->index_to_loc_format) + == FontHeader::LongIndexLocFormat) + && sizeof(FontHeader) <= lTableSize; + return r; + } + + case Tag::post: // post + { + const Sfnt::PostScriptGlyphName * const pPost + = reinterpret_cast<const Sfnt::PostScriptGlyphName *>(pTable); ++ if (lTableSize < sizeof(Sfnt::PostScriptGlyphName)) ++ return false; + const fixed format = be::swap(pPost->format); + bool r = format == PostScriptGlyphName::Format1 + || format == PostScriptGlyphName::Format2 + || format == PostScriptGlyphName::Format3 + || format == PostScriptGlyphName::Format25; + return r; + } + + case Tag::hhea: // hhea + { + const Sfnt::HorizontalHeader * pHhea = + reinterpret_cast<const Sfnt::HorizontalHeader *>(pTable); ++ if (lTableSize < sizeof(Sfnt::HorizontalHeader)) ++ return false; + bool r = be::swap(pHhea->version) == OneFix + && be::swap(pHhea->metric_data_format) == 0 + && sizeof (Sfnt::HorizontalHeader) <= lTableSize; + return r; + } + + case Tag::maxp: // maxp + { + const Sfnt::MaximumProfile * pMaxp = + reinterpret_cast<const Sfnt::MaximumProfile *>(pTable); ++ if (lTableSize < sizeof(Sfnt::MaximumProfile)) ++ return false; + bool r = be::swap(pMaxp->version) == OneFix + && sizeof(Sfnt::MaximumProfile) <= lTableSize; + return r; + } + + case Tag::OS_2: // OS/2 + { + const Sfnt::Compatibility * pOs2 +@@ -319,16 +331,18 @@ bool CheckTable(const Tag TableId, const + return false; + break; + } + + case Tag::name: + { + const Sfnt::FontNames * pName + = reinterpret_cast<const Sfnt::FontNames *>(pTable); ++ if (lTableSize < sizeof(Sfnt::FontNames)) ++ return false; + return be::swap(pName->format) == 0; + } + + default: + break; + } + + return true; +@@ -791,27 +805,27 @@ bool HorMetrics(gid16 nGlyphId, const vo + reinterpret_cast<const Sfnt::HorizontalMetric *>(pHmtx); + + const Sfnt::HorizontalHeader * phhea = + reinterpret_cast<const Sfnt::HorizontalHeader *>(pHhea); + + size_t cLongHorMetrics = be::swap(phhea->num_long_hor_metrics); + if (nGlyphId < cLongHorMetrics) + { // glyph id is acceptable +- if (nGlyphId * sizeof(Sfnt::HorizontalMetric) >= lHmtxSize) return false; ++ if ((nGlyphId + 1) * sizeof(Sfnt::HorizontalMetric) > lHmtxSize) return false; + nAdvWid = be::swap(phmtx[nGlyphId].advance_width); + nLsb = be::swap(phmtx[nGlyphId].left_side_bearing); + } + else + { + // guard against bad glyph id + size_t lLsbOffset = sizeof(Sfnt::HorizontalMetric) * cLongHorMetrics + + sizeof(int16) * (nGlyphId - cLongHorMetrics); // offset in bytes + // We test like this as LsbOffset is an offset not a length. +- if (lLsbOffset > lHmtxSize - sizeof(int16)) ++ if (lLsbOffset >= lHmtxSize - sizeof(int16) || cLongHorMetrics == 0) + { + nLsb = 0; + return false; + } + nAdvWid = be::swap(phmtx[cLongHorMetrics - 1].advance_width); + nLsb = be::peek<int16>(reinterpret_cast<const byte *>(phmtx) + lLsbOffset); + } + +@@ -833,31 +847,33 @@ const void * FindCmapSubtable(const void + { + if (be::swap(pTable->encoding[i].platform_id) == nPlatformId && + (nEncodingId == -1 || be::swap(pTable->encoding[i].platform_specific_id) == nEncodingId)) + { + uint32 offset = be::swap(pTable->encoding[i].offset); + const uint8 * pRtn = reinterpret_cast<const uint8 *>(pCmap) + offset; + if (length) + { +- if (offset > length) return NULL; ++ if (offset > length - 2) return NULL; + uint16 format = be::read<uint16>(pRtn); + if (format == 4) + { ++ if (offset > length - 4) return NULL; + uint16 subTableLength = be::peek<uint16>(pRtn); + if (i + 1 == csuPlatforms) + { + if (subTableLength > length - offset) + return NULL; + } + else if (subTableLength > be::swap(pTable->encoding[i+1].offset)) + return NULL; + } + if (format == 12) + { ++ if (offset > length - 6) return NULL; + uint32 subTableLength = be::peek<uint32>(pRtn); + if (i + 1 == csuPlatforms) + { + if (subTableLength > length - offset) + return NULL; + } + else if (subTableLength > be::swap(pTable->encoding[i+1].offset)) + return NULL; +@@ -868,48 +884,80 @@ const void * FindCmapSubtable(const void + } + + return 0; + } + + /*---------------------------------------------------------------------------------------------- + Check the Microsoft Unicode subtable for expected values + ----------------------------------------------------------------------------------------------*/ +-bool CheckCmapSubtable4(const void * pCmapSubtable4) ++bool CheckCmapSubtable4(const void * pCmapSubtable4, size_t table_len /*, unsigned int maxgid*/) + { + if (!pCmapSubtable4) return false; + const Sfnt::CmapSubTable * pTable = reinterpret_cast<const Sfnt::CmapSubTable *>(pCmapSubtable4); +- // Bob H says ome freeware TT fonts have version 1 (eg, CALIGULA.TTF) ++ // Bob H say some freeware TT fonts have version 1 (eg, CALIGULA.TTF) + // so don't check subtable version. 21 Mar 2002 spec changes version to language. + if (be::swap(pTable->format) != 4) return false; + const Sfnt::CmapSubTableFormat4 * pTable4 = reinterpret_cast<const Sfnt::CmapSubTableFormat4 *>(pCmapSubtable4); + uint16 length = be::swap(pTable4->length); ++ if (length > table_len) ++ return false; + if (length < sizeof(Sfnt::CmapSubTableFormat4)) + return false; + uint16 nRanges = be::swap(pTable4->seg_count_x2) >> 1; + if (length < sizeof(Sfnt::CmapSubTableFormat4) + 4 * nRanges * sizeof(uint16)) + return false; + // check last range is properly terminated + uint16 chEnd = be::peek<uint16>(pTable4->end_code + nRanges - 1); +- return (chEnd == 0xFFFF); ++ if (chEnd != 0xFFFF) ++ return false; ++#if 0 ++ int lastend = -1; ++ for (int i = 0; i < nRanges; ++i) ++ { ++ uint16 end = be::peek<uint16>(pTable4->end_code + i); ++ uint16 start = be::peek<uint16>(pTable4->end_code + nRanges + 1 + i); ++ int16 delta = be::peek<int16>(pTable4->end_code + 2*nRanges + 1 + i); ++ uint16 offset = be::peek<uint16>(pTable4->end_code + 3*nRanges + 1 + i); ++ if (lastend >= end || lastend >= start) ++ return false; ++ if (offset) ++ { ++ const uint16 *gstart = pTable4->end_code + 3*nRanges + 1 + i + (offset >> 1); ++ const uint16 *gend = gstart + end - start; ++ if ((char *)gend >= (char *)pCmapSubtable4 + length) ++ return false; ++ while (gstart <= gend) ++ { ++ uint16 g = be::peek<uint16>(gstart++); ++ if (g && ((g + delta) & 0xFFFF) > maxgid) ++ return false; ++ } ++ } ++ else if (((delta + end) & 0xFFFF) > maxgid) ++ return false; ++ lastend = end; ++ } ++#endif ++ return true; + } + + /*---------------------------------------------------------------------------------------------- + Return the Glyph ID for the given Unicode ID in the Microsoft Unicode subtable. + (Actually this code only depends on subtable being format 4.) + Return 0 if the Unicode ID is not in the subtable. + ----------------------------------------------------------------------------------------------*/ + gid16 CmapSubtable4Lookup(const void * pCmapSubtabel4, unsigned int nUnicodeId, int rangeKey) + { + const Sfnt::CmapSubTableFormat4 * pTable = reinterpret_cast<const Sfnt::CmapSubTableFormat4 *>(pCmapSubtabel4); + + uint16 nSeg = be::swap(pTable->seg_count_x2) >> 1; + + uint16 n; +- const uint16 * pLeft, * pMid; ++ const uint16 * pLeft, * pMid; + uint16 cMid, chStart, chEnd; + + if (rangeKey) + { + pMid = &(pTable->end_code[rangeKey]); + chEnd = be::peek<uint16>(pMid); + } + else +@@ -1027,29 +1075,41 @@ unsigned int CmapSubtable4NextCodepoint( + if (pRangeKey) + *pRangeKey = iRange + 1; + return be::peek<uint16>(pStartCode + iRange + 1); + } + + /*---------------------------------------------------------------------------------------------- + Check the Microsoft UCS-4 subtable for expected values. + ----------------------------------------------------------------------------------------------*/ +-bool CheckCmapSubtable12(const void *pCmapSubtable12) ++bool CheckCmapSubtable12(const void *pCmapSubtable12, size_t table_len /*, unsigned int maxgid*/) + { + if (!pCmapSubtable12) return false; + const Sfnt::CmapSubTable * pTable = reinterpret_cast<const Sfnt::CmapSubTable *>(pCmapSubtable12); + if (be::swap(pTable->format) != 12) + return false; + const Sfnt::CmapSubTableFormat12 * pTable12 = reinterpret_cast<const Sfnt::CmapSubTableFormat12 *>(pCmapSubtable12); + uint32 length = be::swap(pTable12->length); ++ if (length > table_len) ++ return false; + if (length < sizeof(Sfnt::CmapSubTableFormat12)) + return false; +- +- return (length == (sizeof(Sfnt::CmapSubTableFormat12) + (be::swap(pTable12->num_groups) - 1) +- * sizeof(uint32) * 3)); ++ uint32 num_groups = be::swap(pTable12->num_groups); ++ if (length != (sizeof(Sfnt::CmapSubTableFormat12) + (num_groups - 1) * sizeof(uint32) * 3)) ++ return false; ++#if 0 ++ for (unsigned int i = 0; i < num_groups; ++i) ++ { ++ if (be::swap(pTable12->group[i].end_char_code) - be::swap(pTable12->group[i].start_char_code) + be::swap(pTable12->group[i].start_glyph_id) > maxgid) ++ return false; ++ if (i > 0 && be::swap(pTable12->group[i].start_char_code) <= be::swap(pTable12->group[i-1].end_char_code)) ++ return false; ++ } ++#endif ++ return true; + } + + /*---------------------------------------------------------------------------------------------- + Return the Glyph ID for the given Unicode ID in the Microsoft UCS-4 subtable. + (Actually this code only depends on subtable being format 12.) + Return 0 if the Unicode ID is not in the subtable. + ----------------------------------------------------------------------------------------------*/ + gid16 CmapSubtable12Lookup(const void * pCmap310, unsigned int uUnicodeId, int rangeKey) +@@ -1140,49 +1200,53 @@ unsigned int CmapSubtable12NextCodepoint + Technically this method should return an unsigned long but it is unlikely the offset will + exceed 2^31. + ----------------------------------------------------------------------------------------------*/ + size_t LocaLookup(gid16 nGlyphId, + const void * pLoca, size_t lLocaSize, + const void * pHead) // throw (std::out_of_range) + { + const Sfnt::FontHeader * pTable = reinterpret_cast<const Sfnt::FontHeader *>(pHead); ++ size_t res = -2; + + // CheckTable verifies the index_to_loc_format is valid + if (be::swap(pTable->index_to_loc_format) == Sfnt::FontHeader::ShortIndexLocFormat) + { // loca entries are two bytes and have been divided by two +- if (nGlyphId < (lLocaSize >> 1) - 1) // allow sentinel value to be accessed ++ if (lLocaSize > 1 && nGlyphId + 1u < lLocaSize >> 1) // allow sentinel value to be accessed + { + const uint16 * pShortTable = reinterpret_cast<const uint16 *>(pLoca); +- return (be::peek<uint16>(pShortTable + nGlyphId) << 1); ++ res = be::peek<uint16>(pShortTable + nGlyphId) << 1; ++ if (res == static_cast<size_t>(be::peek<uint16>(pShortTable + nGlyphId + 1) << 1)) ++ return -1; + } + } +- +- if (be::swap(pTable->index_to_loc_format) == Sfnt::FontHeader::LongIndexLocFormat) ++ else if (be::swap(pTable->index_to_loc_format) == Sfnt::FontHeader::LongIndexLocFormat) + { // loca entries are four bytes +- if (nGlyphId < (lLocaSize >> 2) - 1) ++ if (lLocaSize > 3 && nGlyphId + 1u < lLocaSize >> 2) + { + const uint32 * pLongTable = reinterpret_cast<const uint32 *>(pLoca); +- return be::peek<uint32>(pLongTable + nGlyphId); ++ res = be::peek<uint32>(pLongTable + nGlyphId); ++ if (res == static_cast<size_t>(be::peek<uint32>(pLongTable + nGlyphId + 1))) ++ return -1; + } + } + + // only get here if glyph id was bad +- return -1; ++ return res; + //throw std::out_of_range("glyph id out of range for font"); + } + + /*---------------------------------------------------------------------------------------------- + Return a pointer into the glyf table based on the given offset (from LocaLookup). + Return NULL on error. + ----------------------------------------------------------------------------------------------*/ + void * GlyfLookup(const void * pGlyf, size_t nGlyfOffset, size_t nTableLen) + { + const uint8 * pByte = reinterpret_cast<const uint8 *>(pGlyf); +- if (nGlyfOffset == size_t(-1) || nGlyfOffset >= nTableLen) ++ if (nGlyfOffset + pByte < pByte || nGlyfOffset + sizeof(Sfnt::Glyph) >= nTableLen) + return NULL; + return const_cast<uint8 *>(pByte + nGlyfOffset); + } + + /*---------------------------------------------------------------------------------------------- + Get the bounding box coordinates for a simple glyf entry (non-composite). + Return true if successful, false otherwise. + ----------------------------------------------------------------------------------------------*/ +@@ -1784,17 +1848,16 @@ bool GlyfContourEndPoints(gid16 nGlyphId + cnPoints - count of points from largest end point obtained from GlyfContourEndPoints + prgnX & prgnY - should point to buffers large enough to hold cnPoints integers + The ranges are parallel so that coordinates for point(n) are found at offset n in + both ranges. These points are in absolute coordinates. + prgfOnCurve - should point to a buffer a large enough to hold cnPoints bytes (bool) + This range is parallel to the prgnX & prgnY + Return true if successful, false otherwise. On false, all points may be INT_MIN + False may indicate a white space glyph, a multi-level composite, or a corrupt font +- // TODO: doesn't support composite glyphs whose components are themselves components + It's not clear from the TTF spec when the transforms should be applied. Should the + transform be done before or after attachment point calcs? (current code - before) + Should the transform be applied to other offsets? (currently - no; however commented + out code is in place so that if CompoundGlyph::UnscaledOffset on the MS rasterizer is + clear (typical) then yes, and if CompoundGlyph::ScaledOffset on the Apple rasterizer is + clear (typical?) then no). See GetComponentTransform. + It's also unclear where point numbering with attachment poinst starts + (currently - first point number is relative to whole glyph, second point number is +diff --git a/gfx/graphite2/src/call_machine.cpp b/gfx/graphite2/src/call_machine.cpp +--- a/gfx/graphite2/src/call_machine.cpp ++++ b/gfx/graphite2/src/call_machine.cpp +@@ -65,57 +65,60 @@ using namespace graphite2; + using namespace vm; + + struct regbank { + slotref is; + slotref * map; + SlotMap & smap; + slotref * const map_base; + const instr * & ip; ++ uint8 direction; + int8 flags; + }; + + typedef bool (* ip_t)(registers); + + // Pull in the opcode definitions + // We pull these into a private namespace so these otherwise common names dont + // pollute the toplevel namespace. + namespace { + #define smap reg.smap + #define seg smap.segment + #define is reg.is + #define ip reg.ip + #define map reg.map + #define mapb reg.map_base + #define flags reg.flags ++#define dir reg.direction + + #include "inc/opcodes.h" + + #undef smap + #undef seg + #undef is + #undef ip + #undef map + #undef mapb + #undef flags ++#undef dir + } + + Machine::stack_t Machine::run(const instr * program, + const byte * data, + slotref * & map) + + { + assert(program != 0); + + // Declare virtual machine registers + const instr * ip = program-1; + const byte * dp = data; + stack_t * sp = _stack + Machine::STACK_GUARD, + * const sb = sp; +- regbank reg = {*map, map, _map, _map.begin()+_map.context(), ip, 0}; ++ regbank reg = {*map, map, _map, _map.begin()+_map.context(), ip, _map.dir(), 0}; + + // Run the program + while ((reinterpret_cast<ip_t>(*++ip))(dp, sp, sb, reg)) {} + const stack_t ret = sp == _stack+STACK_GUARD+1 ? *sp-- : 0; + + check_final_stack(sp); + map = reg.map; + *map = reg.is; +diff --git a/gfx/graphite2/src/direct_machine.cpp b/gfx/graphite2/src/direct_machine.cpp +--- a/gfx/graphite2/src/direct_machine.cpp ++++ b/gfx/graphite2/src/direct_machine.cpp +@@ -56,16 +56,17 @@ using namespace vm; + + namespace { + + const void * direct_run(const bool get_table_mode, + const instr * program, + const byte * data, + Machine::stack_t * stack, + slotref * & __map, ++ uint8 _dir, + SlotMap * __smap=0) + { + // We need to define and return to opcode table from within this function + // other inorder to take the addresses of the instruction bodies. + #include "inc/opcode_table.h" + if (get_table_mode) + return opcode_table; + +@@ -74,16 +75,17 @@ const void * direct_run(const bool + const byte * dp = data; + Machine::stack_t * sp = stack + Machine::STACK_GUARD, + * const sb = sp; + SlotMap & smap = *__smap; + Segment & seg = smap.segment; + slotref is = *__map, + * map = __map, + * const mapb = smap.begin()+smap.context(); ++ uint8 dir = _dir; + int8 flags = 0; + + // start the program + goto **ip; + + // Pull in the opcode definitions + #include "inc/opcodes.h" + +@@ -104,14 +106,14 @@ const opcode_t * Machine::getOpcodeTable + + Machine::stack_t Machine::run(const instr * program, + const byte * data, + slotref * & is) + { + assert(program != 0); + + const stack_t *sp = static_cast<const stack_t *>( +- direct_run(false, program, data, _stack, is, &_map)); ++ direct_run(false, program, data, _stack, is, _map.dir(), &_map)); + const stack_t ret = sp == _stack+STACK_GUARD+1 ? *sp-- : 0; + check_final_stack(sp); + return ret; + } + +diff --git a/gfx/graphite2/src/files.mk b/gfx/graphite2/src/files.mk +--- a/gfx/graphite2/src/files.mk ++++ b/gfx/graphite2/src/files.mk +@@ -42,29 +42,32 @@ + $($(_NS)_BASE)/src/gr_char_info.cpp \ + $($(_NS)_BASE)/src/gr_face.cpp \ + $($(_NS)_BASE)/src/gr_features.cpp \ + $($(_NS)_BASE)/src/gr_font.cpp \ + $($(_NS)_BASE)/src/gr_logging.cpp \ + $($(_NS)_BASE)/src/gr_segment.cpp \ + $($(_NS)_BASE)/src/gr_slot.cpp \ + $($(_NS)_BASE)/src/json.cpp \ +- $($(_NS)_BASE)/src/Bidi.cpp \ + $($(_NS)_BASE)/src/CachedFace.cpp \ + $($(_NS)_BASE)/src/CmapCache.cpp \ + $($(_NS)_BASE)/src/Code.cpp \ ++ $($(_NS)_BASE)/src/Collider.cpp \ ++ $($(_NS)_BASE)/src/Decompressor.cpp \ + $($(_NS)_BASE)/src/Face.cpp \ + $($(_NS)_BASE)/src/FeatureMap.cpp \ + $($(_NS)_BASE)/src/FileFace.cpp \ + $($(_NS)_BASE)/src/Font.cpp \ + $($(_NS)_BASE)/src/GlyphCache.cpp \ + $($(_NS)_BASE)/src/GlyphFace.cpp \ ++ $($(_NS)_BASE)/src/Intervals.cpp \ + $($(_NS)_BASE)/src/Justifier.cpp \ + $($(_NS)_BASE)/src/NameTable.cpp \ + $($(_NS)_BASE)/src/Pass.cpp \ ++ $($(_NS)_BASE)/src/Position.cpp \ + $($(_NS)_BASE)/src/SegCache.cpp \ + $($(_NS)_BASE)/src/SegCacheEntry.cpp \ + $($(_NS)_BASE)/src/SegCacheStore.cpp \ + $($(_NS)_BASE)/src/Segment.cpp \ + $($(_NS)_BASE)/src/Silf.cpp \ + $($(_NS)_BASE)/src/Slot.cpp \ + $($(_NS)_BASE)/src/Sparse.cpp \ + $($(_NS)_BASE)/src/TtfUtil.cpp \ +@@ -73,25 +76,29 @@ + $(_NS)_PRIVATE_HEADERS = \ + $($(_NS)_BASE)/src/inc/bits.h \ + $($(_NS)_BASE)/src/inc/debug.h \ + $($(_NS)_BASE)/src/inc/json.h \ + $($(_NS)_BASE)/src/inc/CachedFace.h \ + $($(_NS)_BASE)/src/inc/CharInfo.h \ + $($(_NS)_BASE)/src/inc/CmapCache.h \ + $($(_NS)_BASE)/src/inc/Code.h \ ++ $($(_NS)_BASE)/src/inc/Collider.h \ ++ $($(_NS)_BASE)/src/inc/Compression.h \ ++ $($(_NS)_BASE)/src/inc/Decompressor.h \ + $($(_NS)_BASE)/src/inc/Endian.h \ + $($(_NS)_BASE)/src/inc/Error.h \ + $($(_NS)_BASE)/src/inc/Face.h \ + $($(_NS)_BASE)/src/inc/FeatureMap.h \ + $($(_NS)_BASE)/src/inc/FeatureVal.h \ + $($(_NS)_BASE)/src/inc/FileFace.h \ + $($(_NS)_BASE)/src/inc/Font.h \ + $($(_NS)_BASE)/src/inc/GlyphCache.h \ + $($(_NS)_BASE)/src/inc/GlyphFace.h \ ++ $($(_NS)_BASE)/src/inc/Intervals.h \ + $($(_NS)_BASE)/src/inc/List.h \ + $($(_NS)_BASE)/src/inc/locale2lcid.h \ + $($(_NS)_BASE)/src/inc/Machine.h \ + $($(_NS)_BASE)/src/inc/Main.h \ + $($(_NS)_BASE)/src/inc/NameTable.h \ + $($(_NS)_BASE)/src/inc/opcode_table.h \ + $($(_NS)_BASE)/src/inc/opcodes.h \ + $($(_NS)_BASE)/src/inc/Pass.h \ +diff --git a/gfx/graphite2/src/gr_face.cpp b/gfx/graphite2/src/gr_face.cpp +--- a/gfx/graphite2/src/gr_face.cpp ++++ b/gfx/graphite2/src/gr_face.cpp +@@ -41,17 +41,17 @@ extern json *global_log; + + namespace + { + bool load_face(Face & face, unsigned int options) + { + #ifdef GRAPHITE2_TELEMETRY + telemetry::category _misc_cat(face.tele.misc); + #endif +- Face::Table silf(face, Tag::Silf); ++ Face::Table silf(face, Tag::Silf, 0x00050000); + if (silf) options &= ~gr_face_dumbRendering; + else if (!(options & gr_face_dumbRendering)) + return false; + + if (!face.readGlyphs(options)) + return false; + + if (silf) +diff --git a/gfx/graphite2/src/gr_logging.cpp b/gfx/graphite2/src/gr_logging.cpp +--- a/gfx/graphite2/src/gr_logging.cpp ++++ b/gfx/graphite2/src/gr_logging.cpp +@@ -19,24 +19,25 @@ + Suite 500, Boston, MA 02110-1335, USA or visit their web page on the + internet at http://www.fsf.org/licenses/lgpl.html. + + Alternatively, the contents of this file may be used under the terms of the + Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public + License, as published by the Free Software Foundation, either version 2 + of the License or (at your option) any later version. + */ +-#include <stdio.h> ++#include <cstdio> + + #include "graphite2/Log.h" + #include "inc/debug.h" + #include "inc/CharInfo.h" + #include "inc/Slot.h" + #include "inc/Segment.h" + #include "inc/json.h" ++#include "inc/Collider.h" + + #if defined _WIN32 + #include "windows.h" + #endif + + using namespace graphite2; + + #if !defined GRAPHITE2_NTRACING +@@ -179,16 +180,17 @@ json & graphite2::operator << (json & j, + + + json & graphite2::operator << (json & j, const dslot & ds) throw() + { + assert(ds.first); + assert(ds.second); + const Segment & seg = *ds.first; + const Slot & s = *ds.second; ++ const SlotCollision *cslot = seg.collisionInfo(ds.second); + + j << json::object + << "id" << objectid(ds) + << "gid" << s.gid() + << "charinfo" << json::flat << json::object + << "original" << s.original() + << "before" << s.before() + << "after" << s.after() +@@ -215,16 +217,38 @@ json & graphite2::operator << (json & j, + j << json::close; + if (s.firstChild()) + { + j << "children" << json::flat << json::array; + for (const Slot *c = s.firstChild(); c; c = c->nextSibling()) + j << objectid(dslot(&seg, c)); + j << json::close; + } ++ if (cslot) ++ { ++ // Note: the reason for using Positions to lump together related attributes is to make the ++ // JSON output slightly more compact. ++ j << "collision" << json::flat << json::object ++// << "shift" << cslot->shift() -- not used pass level, only within the collision routine itself ++ << "offset" << cslot->offset() ++ << "limit" << cslot->limit() ++ << "flags" << cslot->flags() ++ << "margin" << Position(cslot->margin(), cslot->marginWt()) ++ << "exclude" << cslot->exclGlyph() ++ << "excludeoffset" << cslot->exclOffset(); ++ if (cslot->seqOrder() != 0) ++ { ++ j << "seqclass" << Position(cslot->seqClass(), cslot->seqProxClass()) ++ << "seqorder" << cslot->seqOrder() ++ << "seqabove" << Position(cslot->seqAboveXoff(), cslot->seqAboveWt()) ++ << "seqbelow" << Position(cslot->seqBelowXlim(), cslot->seqBelowWt()) ++ << "seqvalign" << Position(cslot->seqValignHt(), cslot->seqValignWt()); ++ } ++ j << json::close; ++ } + return j << json::close; + } + + + graphite2::objectid::objectid(const dslot & ds) throw() + { + const Slot * const p = ds.second; + uint32 s = reinterpret_cast<size_t>(p); +diff --git a/gfx/graphite2/src/gr_segment.cpp b/gfx/graphite2/src/gr_segment.cpp +--- a/gfx/graphite2/src/gr_segment.cpp ++++ b/gfx/graphite2/src/gr_segment.cpp +@@ -43,21 +43,17 @@ namespace + Segment* pRes=new Segment(nChars, face, script, dir); + + + if (!pRes->read_text(face, pFeats, enc, pStart, nChars) || !pRes->runGraphite()) + { + delete pRes; + return NULL; + } +- // run the line break passes +- // run the substitution passes +- pRes->prepare_pos(font); +- // run the positioning passes +- pRes->finalise(font); ++ pRes->finalise(font, true); + + return static_cast<gr_segment*>(pRes); + } + + + } + + +diff --git a/gfx/graphite2/src/gr_slot.cpp b/gfx/graphite2/src/gr_slot.cpp +--- a/gfx/graphite2/src/gr_slot.cpp ++++ b/gfx/graphite2/src/gr_slot.cpp +@@ -98,21 +98,21 @@ float gr_slot_advance_X(const gr_slot* p + if (face && font->isHinted()) + res = (res - face->glyphs().glyph(p->gid())->theAdvance().x) * scale + font->advance(p->gid()); + else + res = res * scale; + } + return res; + } + +-float gr_slot_advance_Y(const gr_slot *p/*not NULL*/, const gr_face *face, const gr_font *font) ++float gr_slot_advance_Y(const gr_slot *p/*not NULL*/, GR_MAYBE_UNUSED const gr_face *face, const gr_font *font) + { + assert(p); + float res = p->advancePos().y; +- if (font && (face || !face)) ++ if (font) + return res * font->scale(); + else + return res; + } + + int gr_slot_before(const gr_slot* p/*not NULL*/) + { + assert(p); +diff --git a/gfx/graphite2/src/inc/Code.h b/gfx/graphite2/src/inc/Code.h +--- a/gfx/graphite2/src/inc/Code.h ++++ b/gfx/graphite2/src/inc/Code.h +@@ -36,32 +36,41 @@ of the License or (at your option) any l + #include "inc/Main.h" + #include "inc/Machine.h" + + namespace graphite2 { + + class Silf; + class Face; + ++enum passtype { ++ PASS_TYPE_UNKNOWN = 0, ++ PASS_TYPE_LINEBREAK, ++ PASS_TYPE_SUBSTITUTE, ++ PASS_TYPE_POSITIONING, ++ PASS_TYPE_JUSTIFICATION ++}; ++ + namespace vm { + + class Machine::Code + { + public: + enum status_t + { + loaded, + alloc_failed, + invalid_opcode, + unimplemented_opcode_used, + out_of_range_data, + jump_past_end, + arguments_exhausted, + missing_return, +- nested_context_item ++ nested_context_item, ++ underfull_stack + }; + + private: + class decoder; + + instr * _code; + byte * _data; + size_t _data_size, +@@ -72,40 +81,51 @@ private: + _modify, + _delete; + mutable bool _own; + + void release_buffers() throw (); + void failure(const status_t) throw(); + + public: ++ static size_t estimateCodeDataOut(size_t num_bytecodes); ++ + Code() throw(); + Code(bool is_constraint, const byte * bytecode_begin, const byte * const bytecode_end, +- uint8 pre_context, uint16 rule_length, const Silf &, const Face &); ++ uint8 pre_context, uint16 rule_length, const Silf &, const Face &, ++ enum passtype pt, byte * * const _out = 0); + Code(const Machine::Code &) throw(); + ~Code() throw(); + + Code & operator=(const Code &rhs) throw(); +- operator bool () const throw(); +- status_t status() const throw(); +- bool constraint() const throw(); +- size_t dataSize() const throw(); +- size_t instructionCount() const throw(); +- bool immutable() const throw(); +- bool deletes() const throw(); +- size_t maxRef() const throw(); ++ operator bool () const throw() { return _code && status() == loaded; } ++ status_t status() const throw() { return _status; } ++ bool constraint() const throw() { return _constraint; } ++ size_t dataSize() const throw() { return _data_size; } ++ size_t instructionCount() const throw() { return _instr_count; } ++ bool immutable() const throw() { return !(_delete || _modify); } ++ bool deletes() const throw() { return _delete; } ++ size_t maxRef() const throw() { return _max_ref; } ++ void externalProgramMoved(ptrdiff_t) throw(); + + int32 run(Machine &m, slotref * & map) const; + + CLASS_NEW_DELETE; + }; + ++inline ++size_t Machine::Code::estimateCodeDataOut(size_t n_bc) ++{ ++ return n_bc * (sizeof(instr)+sizeof(byte)); ++} ++ ++ + inline Machine::Code::Code() throw() + : _code(0), _data(0), _data_size(0), _instr_count(0), _max_ref(0), +- _status(loaded), _constraint(false), _modify(false),_delete(false), ++ _status(loaded), _constraint(false), _modify(false), _delete(false), + _own(false) + { + } + + inline Machine::Code::Code(const Machine::Code &obj) throw () + : _code(obj._code), + _data(obj._data), + _data_size(obj._data_size), +@@ -131,45 +151,19 @@ inline Machine::Code & Machine::Code::op + _constraint = rhs._constraint; + _modify = rhs._modify; + _delete = rhs._delete; + _own = rhs._own; + rhs._own = false; + return *this; + } + +-inline Machine::Code::operator bool () const throw () { +- return _code && status() == loaded; +-} +- +-inline Machine::Code::status_t Machine::Code::status() const throw() { +- return _status; +-} +- +-inline bool Machine::Code::constraint() const throw() { +- return _constraint; +-} +- +-inline size_t Machine::Code::dataSize() const throw() { +- return _data_size; +-} +- +-inline size_t Machine::Code::instructionCount() const throw() { +- return _instr_count; +-} +- +-inline bool Machine::Code::immutable() const throw() ++inline void Machine::Code::externalProgramMoved(ptrdiff_t dist) throw() + { +- return !(_delete || _modify); +-} +- +-inline bool Machine::Code::deletes() const throw() +-{ +- return _delete; +-} +- +-inline size_t Machine::Code::maxRef() const throw() +-{ +- return _max_ref; ++ if (_code && !_own) ++ { ++ _code += dist / sizeof(instr); ++ _data += dist; ++ } + } + + } // namespace vm + } // namespace graphite2 +diff --git a/gfx/graphite2/src/inc/Collider.h b/gfx/graphite2/src/inc/Collider.h +new file mode 100644 +--- /dev/null ++++ b/gfx/graphite2/src/inc/Collider.h +@@ -0,0 +1,242 @@ ++/* GRAPHITE2 LICENSING ++ ++ Copyright 2010, SIL International ++ All rights reserved. ++ ++ This library is free software; you can redistribute it and/or modify ++ it under the terms of the GNU Lesser General Public License as published ++ by the Free Software Foundation; either version 2.1 of License, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ Lesser General Public License for more details. ++ ++ You should also have received a copy of the GNU Lesser General Public ++ License along with this library in the file named "LICENSE". ++ If not, write to the Free Software Foundation, 51 Franklin Street, ++ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the ++ internet at http://www.fsf.org/licenses/lgpl.html. ++ ++Alternatively, the contents of this file may be used under the terms of the ++Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public ++License, as published by the Free Software Foundation, either version 2 ++of the License or (at your option) any later version. ++*/ ++#pragma once ++ ++#include "inc/List.h" ++#include "inc/Position.h" ++#include "inc/Intervals.h" ++#include "inc/debug.h" ++ ++namespace graphite2 { ++ ++class json; ++class Slot; ++class Segment; ++ ++#define SLOTCOLSETUINTPROP(x, y) uint16 x() const { return _ ##x; } void y (uint16 v) { _ ##x = v; } ++#define SLOTCOLSETINTPROP(x, y) int16 x() const { return _ ##x; } void y (int16 v) { _ ##x = v; } ++#define SLOTCOLSETPOSITIONPROP(x, y) const Position &x() const { return _ ##x; } void y (const Position &v) { _ ##x = v; } ++ ++// Slot attributes related to collision-fixing ++class SlotCollision ++{ ++public: ++ enum { ++ // COLL_TESTONLY = 0, // default - test other glyphs for collision with this one, but don't move this one ++ COLL_FIX = 1, // fix collisions involving this glyph ++ COLL_IGNORE = 2, // ignore this glyph altogether ++ COLL_START = 4, // start of range of possible collisions ++ COLL_END = 8, // end of range of possible collisions ++ COLL_KERN = 16, // collisions with this glyph are fixed by adding kerning space after it ++ COLL_ISCOL = 32, // this glyph has a collision ++ COLL_KNOWN = 64, // we've figured out what's happening with this glyph ++ COLL_TEMPLOCK = 128, // Lock glyphs that have been given priority positioning ++ ////COLL_JUMPABLE = 128, // moving glyphs may jump this stationary glyph in any direction - DELETE ++ ////COLL_OVERLAP = 256, // use maxoverlap to restrict - DELETE ++ }; ++ ++ // Behavior for the collision.order attribute. To GDL this is an enum, to us it's a bitfield, with only 1 bit set ++ // Allows for easier inversion. ++ enum { ++ SEQ_ORDER_LEFTDOWN = 1, ++ SEQ_ORDER_RIGHTUP = 2, ++ SEQ_ORDER_NOABOVE = 4, ++ SEQ_ORDER_NOBELOW = 8, ++ SEQ_ORDER_NOLEFT = 16, ++ SEQ_ORDER_NORIGHT = 32 ++ }; ++ ++ SlotCollision(Segment *seg, Slot *slot); ++ void initFromSlot(Segment *seg, Slot *slot); ++ ++ const Rect &limit() const { return _limit; } ++ void setLimit(const Rect &r) { _limit = r; } ++ SLOTCOLSETPOSITIONPROP(shift, setShift) ++ SLOTCOLSETPOSITIONPROP(offset, setOffset) ++ SLOTCOLSETPOSITIONPROP(exclOffset, setExclOffset) ++ SLOTCOLSETUINTPROP(margin, setMargin) ++ SLOTCOLSETUINTPROP(marginWt, setMarginWt) ++ SLOTCOLSETUINTPROP(flags, setFlags) ++ SLOTCOLSETUINTPROP(exclGlyph, setExclGlyph) ++ SLOTCOLSETUINTPROP(seqClass, setSeqClass) ++ SLOTCOLSETUINTPROP(seqProxClass, setSeqProxClass) ++ SLOTCOLSETUINTPROP(seqOrder, setSeqOrder) ++ SLOTCOLSETINTPROP(seqAboveXoff, setSeqAboveXoff) ++ SLOTCOLSETUINTPROP(seqAboveWt, setSeqAboveWt) ++ SLOTCOLSETINTPROP(seqBelowXlim, setSeqBelowXlim) ++ SLOTCOLSETUINTPROP(seqBelowWt, setSeqBelowWt) ++ SLOTCOLSETUINTPROP(seqValignHt, setSeqValignHt) ++ SLOTCOLSETUINTPROP(seqValignWt, setSeqValignWt) ++ ++ float getKern(int dir) const; ++ ++private: ++ Rect _limit; ++ Position _shift; // adjustment within the given pass ++ Position _offset; // total adjustment for collisions ++ Position _exclOffset; ++ uint16 _margin; ++ uint16 _marginWt; ++ uint16 _flags; ++ uint16 _exclGlyph; ++ uint16 _seqClass; ++ uint16 _seqProxClass; ++ uint16 _seqOrder; ++ int16 _seqAboveXoff; ++ uint16 _seqAboveWt; ++ int16 _seqBelowXlim; ++ uint16 _seqBelowWt; ++ uint16 _seqValignHt; ++ uint16 _seqValignWt; ++ ++}; // end of class SlotColllision ++ ++struct BBox; ++struct SlantBox; ++ ++class ShiftCollider ++{ ++public: ++ typedef std::pair<float, float> fpair; ++ typedef Vector<fpair> vfpairs; ++ typedef vfpairs::iterator ivfpairs; ++ ++ ShiftCollider(json *dbgout); ++ ~ShiftCollider() throw() { }; ++ ++ bool initSlot(Segment *seg, Slot *aSlot, const Rect &constraint, ++ float margin, float marginMin, const Position &currShift, ++ const Position &currOffset, int dir, GR_MAYBE_UNUSED json * const dbgout); ++ bool mergeSlot(Segment *seg, Slot *slot, const Position &currShift, bool isAfter, ++ bool sameCluster, bool &hasCol, bool isExclusion, GR_MAYBE_UNUSED json * const dbgout); ++ Position resolve(Segment *seg, bool &isCol, GR_MAYBE_UNUSED json * const dbgout); ++ void addBox_slope(bool isx, const Rect &box, const BBox &bb, const SlantBox &sb, const Position &org, float weight, float m, bool minright, int mode); ++ void removeBox(const Rect &box, const BBox &bb, const SlantBox &sb, const Position &org, int mode); ++ const Position &origin() const { return _origin; } ++ ++#if !defined GRAPHITE2_NTRACING ++ void outputJsonDbg(json * const dbgout, Segment *seg, int axis); ++ void outputJsonDbgStartSlot(json * const dbgout, Segment *seg); ++ void outputJsonDbgEndSlot(json * const dbgout, Position resultPos, int bestAxis, bool isCol); ++ void outputJsonDbgOneVector(json * const dbgout, Segment *seg, int axis, float tleft, float bestCost, float bestVal); ++ void outputJsonDbgRawRanges(json * const dbgout, int axis); ++ void outputJsonDbgRemovals(json * const dbgout, int axis, Segment *seg); ++#endif ++ ++ CLASS_NEW_DELETE; ++ ++protected: ++ Zones _ranges[4]; // possible movements in 4 directions (horizontally, vertically, diagonally); ++ Slot * _target; // the glyph to fix ++ Rect _limit; ++ Position _currShift; ++ Position _currOffset; ++ Position _origin; // Base for all relative calculations ++ float _margin; ++ float _marginWt; ++ float _len[4]; ++ uint16 _seqClass; ++ uint16 _seqProxClass; ++ uint16 _seqOrder; ++ ++ //bool _scraping[4]; ++ ++}; // end of class ShiftCollider ++ ++inline ++ShiftCollider::ShiftCollider(GR_MAYBE_UNUSED json *dbgout) ++: _target(0), ++ _margin(0.0), ++ _marginWt(0.0), ++ _seqClass(0), ++ _seqProxClass(0), ++ _seqOrder(0) ++{ ++#if !defined GRAPHITE2_NTRACING ++ for (int i = 0; i < 4; ++i) ++ _ranges[i].setdebug(dbgout); ++#endif ++} ++ ++class KernCollider ++{ ++public: ++ KernCollider(json *dbg); ++ ~KernCollider() throw() { }; ++ bool initSlot(Segment *seg, Slot *aSlot, const Rect &constraint, float margin, ++ const Position &currShift, const Position &offsetPrev, int dir, ++ float ymin, float ymax, json * const dbgout); ++ bool mergeSlot(Segment *seg, Slot *slot, const Position &currShift, float currSpace, int dir, json * const dbgout); ++ Position resolve(Segment *seg, Slot *slot, int dir, float margin, json * const dbgout); ++ void shift(const Position &mv, int dir); ++ ++ CLASS_NEW_DELETE; ++ ++private: ++ Slot * _target; // the glyph to fix ++ Rect _limit; ++ float _margin; ++ Position _offsetPrev; // kern from a previous pass ++ Position _currShift; // NOT USED?? ++ float _miny; // y-coordinates offset by global slot position ++ float _maxy; ++ Vector<float> _edges; // edges of horizontal slices ++ float _sliceWidth; // width of each slice ++ float _mingap; ++ float _xbound; // max or min edge ++ ++#if !defined GRAPHITE2_NTRACING ++ // Debugging ++ Segment * _seg; ++ Vector<float> _nearEdges; // closest potential collision in each slice ++ Vector<Slot*> _slotNear; ++#endif ++}; // end of class KernCollider ++ ++ ++inline ++float sqr(float x) { ++ return x * x; ++} ++ ++inline ++KernCollider::KernCollider(GR_MAYBE_UNUSED json *dbg) ++: _target(0), ++ _margin(0.0f), ++ _miny(-1e38f), ++ _maxy(1e38f), ++ _sliceWidth(0.0f), ++ _mingap(0.0f), ++ _xbound(0.0) ++{ ++#if !defined GRAPHITE2_NTRACING ++ _seg = 0; ++#endif ++}; ++ ++}; // end of namespace graphite2 ++ +diff --git a/gfx/graphite2/src/inc/Compression.h b/gfx/graphite2/src/inc/Compression.h +new file mode 100644 +--- /dev/null ++++ b/gfx/graphite2/src/inc/Compression.h +@@ -0,0 +1,103 @@ ++/* GRAPHITE2 LICENSING ++ ++ Copyright 2015, SIL International ++ All rights reserved. ++ ++ This library is free software; you can redistribute it and/or modify ++ it under the terms of the GNU Lesser General Public License as published ++ by the Free Software Foundation; either version 2.1 of License, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ Lesser General Public License for more details. ++ ++ You should also have received a copy of the GNU Lesser General Public ++ License along with this library in the file named "LICENSE". ++ If not, write to the Free Software Foundation, 51 Franklin Street, ++ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the ++ internet at http://www.fsf.org/licenses/lgpl.html. ++ ++Alternatively, the contents of this file may be used under the terms of the ++Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public ++License, as published by the Free Software Foundation, either version 2 ++of the License or (at your option) any later version. ++*/ ++ ++#pragma once ++ ++#include <cassert> ++#include <cstddef> ++#include <cstring> ++ ++namespace ++{ ++ ++#if defined(_MSC_VER) ++typedef unsigned __int8 u8; ++typedef unsigned __int16 u16; ++typedef unsigned __int32 u32; ++typedef unsigned __int64 u64; ++#else ++#include <stdint.h> ++typedef uint8_t u8; ++typedef uint16_t u16; ++typedef uint32_t u32; ++typedef uint64_t u64; ++#endif ++ ++ptrdiff_t const MINMATCH = 4; ++ ++template<int S> ++inline ++void unaligned_copy(void * d, void const * s) { ++ ::memcpy(d, s, S); ++} ++ ++inline ++size_t align(size_t p) { ++ return (p + sizeof(unsigned long)-1) & ~(sizeof(unsigned long)-1); ++} ++ ++inline ++u8 * safe_copy(u8 * d, u8 const * s, size_t n) { ++ while (n--) *d++ = *s++; ++ return d; ++} ++ ++inline ++u8 * overrun_copy(u8 * d, u8 const * s, size_t n) { ++ size_t const WS = sizeof(unsigned long); ++ u8 const * e = s + n; ++ do ++ { ++ unaligned_copy<WS>(d, s); ++ d += WS; ++ s += WS; ++ } ++ while (s < e); ++ d-=(s-e); ++ ++ return d; ++} ++ ++ ++inline ++u8 * fast_copy(u8 * d, u8 const * s, size_t n) { ++ size_t const WS = sizeof(unsigned long); ++ size_t wn = n/WS; ++ while (wn--) ++ { ++ unaligned_copy<WS>(d, s); ++ d += WS; ++ s += WS; ++ } ++ n &= WS-1; ++ return safe_copy(d, s, n); ++} ++ ++ ++} // end of anonymous namespace ++ ++ +diff --git a/gfx/graphite2/src/inc/Decompressor.h b/gfx/graphite2/src/inc/Decompressor.h +new file mode 100644 +--- /dev/null ++++ b/gfx/graphite2/src/inc/Decompressor.h +@@ -0,0 +1,56 @@ ++/* GRAPHITE2 LICENSING ++ ++ Copyright 2015, SIL International ++ All rights reserved. ++ ++ This library is free software; you can redistribute it and/or modify ++ it under the terms of the GNU Lesser General Public License as published ++ by the Free Software Foundation; either version 2.1 of License, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ Lesser General Public License for more details. ++ ++ You should also have received a copy of the GNU Lesser General Public ++ License along with this library in the file named "LICENSE". ++ If not, write to the Free Software Foundation, 51 Franklin Street, ++ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the ++ internet at http://www.fsf.org/licenses/lgpl.html. ++ ++Alternatively, the contents of this file may be used under the terms of the ++Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public ++License, as published by the Free Software Foundation, either version 2 ++of the License or (at your option) any later version. ++*/ ++ ++#pragma once ++ ++#include <cstddef> ++ ++namespace lz4 ++{ ++ ++// decompress an LZ4 block ++// Parameters: ++// @in - Input buffer containing an LZ4 block. ++// @in_size - Size of the input LZ4 block in bytes. ++// @out - Output buffer to hold decompressed results. ++// @out_size - The size of the buffer pointed to by @out. ++// Invariants: ++// @in - This buffer must be at least 1 machine word in length, ++// regardless of the actual LZ4 block size. ++// @in_size - This must be at least 4 and must also be <= to the ++// allocated buffer @in. ++// @out - This must be bigger than the input buffer and at least ++// 13 bytes. ++// @out_size - Must always be big enough to hold the expected size. ++// Return: ++// -1 - Decompression failed. ++// size - Actual number of bytes decompressed. ++int decompress(void const *in, size_t in_size, void *out, size_t out_size); ++ ++} // end of namespace shrinker ++ ++ +diff --git a/gfx/graphite2/src/inc/Error.h b/gfx/graphite2/src/inc/Error.h +--- a/gfx/graphite2/src/inc/Error.h ++++ b/gfx/graphite2/src/inc/Error.h +@@ -106,22 +106,30 @@ enum errors { + E_BADRULECCODEPTR = 45, // The rule constraint code position does not align with where the forward reference says it should be + E_BADCCODELEN = 46, // Bad rule/pass constraint code length + E_BADACTIONCODEPTR = 47, // The action code position does not align with where the forward reference says it should be + E_MUTABLECCODE = 48, // Constraint code edits slots. It shouldn't. + E_BADSTATE = 49, // Bad state transition referencing an illegal state + E_BADRULEMAPPING = 50, // The structure of the rule mapping is bad + E_BADRANGE = 51, // Bad column range structure including a glyph in more than one column + E_BADRULENUM = 52, // A reference to a rule is out of range (too high) ++ E_BADACOLLISION = 53, // Bad Silf table collision attribute number (too high) ++ E_BADEMPTYPASS = 54, // Can't have empty passes (no rules) except for collision passes ++ E_BADSILFVERSION = 55, // The Silf table has a bad version (probably too high) ++ E_BADCOLLISIONPASS = 56, // Collision flags set on a non positioning pass ++ E_BADNUMCOLUMNS = 57, // Arbitrarily limit number of columns in fsm + // Code errors + E_CODEFAILURE = 60, // Base code error. The following subcodes must align with Machine::Code::status_t in Code.h +- E_CODEALLOC = 61, // Out of memory +- E_INVALIDOPCODE = 62, // Invalid op code +- E_UNIMPOPCODE = 63, // Unimplemented op code encountered +- E_OUTOFRANGECODE = 64, // Code argument out of range +- E_BADJUMPCODE = 65, // Code jumps past end of op codes +- E_CODEBADARGS = 66, // Code arguments exhausted +- E_CODENORETURN = 67, // Missing return type op code at end of code +- E_CODENESTEDCTXT = 68 // Nested context encountered in code ++ E_CODEALLOC = 61, // Out of memory ++ E_INVALIDOPCODE = 62, // Invalid op code ++ E_UNIMPOPCODE = 63, // Unimplemented op code encountered ++ E_OUTOFRANGECODE = 64, // Code argument out of range ++ E_BADJUMPCODE = 65, // Code jumps past end of op codes ++ E_CODEBADARGS = 66, // Code arguments exhausted ++ E_CODENORETURN = 67, // Missing return type op code at end of code ++ E_CODENESTEDCTXT = 68, // Nested context encountered in code ++// Compression errors ++ E_BADSCHEME = 69, ++ E_SHRINKERFAILED = 70, + }; + + } + +diff --git a/gfx/graphite2/src/inc/Face.h b/gfx/graphite2/src/inc/Face.h +--- a/gfx/graphite2/src/inc/Face.h ++++ b/gfx/graphite2/src/inc/Face.h +@@ -21,33 +21,34 @@ + + Alternatively, the contents of this file may be used under the terms of the + Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public + License, as published by the Free Software Foundation, either version 2 + of the License or (at your option) any later version. + */ + #pragma once + +-#include <stdio.h> ++#include <cstdio> + + #include "graphite2/Font.h" + + #include "inc/Main.h" + #include "inc/FeatureMap.h" + #include "inc/TtfUtil.h" + #include "inc/Silf.h" + #include "inc/Error.h" + + namespace graphite2 { + + class Cmap; + class FileFace; + class GlyphCache; + class NameTable; + class json; ++class Font; + + + using TtfUtil::Tag; + + // These are the actual tags, as distinct from the consecutive IDs in TtfUtil.h + + class Face + { +@@ -165,47 +166,51 @@ json * Face::logger() const throw() + + + + class Face::Table + { + const Face * _f; + mutable const byte * _p; + uint32 _sz; ++ bool _compressed; ++ ++ Error decompress(); ++ ++ void releaseBuffers(); + + public: + Table() throw(); +- Table(const Face & face, const Tag n) throw(); ++ Table(const Face & face, const Tag n, uint32 version=0xffffffff) throw(); + Table(const Table & rhs) throw(); + ~Table() throw(); + + operator const byte * () const throw(); + + Table & operator = (const Table & rhs) throw(); + size_t size() const throw(); + }; + + inline + Face::Table::Table() throw() +-: _f(0), _p(0), _sz(0) ++: _f(0), _p(0), _sz(0), _compressed(false) + { + } + + inline + Face::Table::Table(const Table & rhs) throw() +-: _f(rhs._f), _p(rhs._p), _sz(rhs._sz) ++: _f(rhs._f), _p(rhs._p), _sz(rhs._sz), _compressed(rhs._compressed) + { + rhs._p = 0; + } + + inline + Face::Table::~Table() throw() + { +- if (_p && _f->m_ops.release_table) +- (*_f->m_ops.release_table)(_f->m_appFaceHandle, _p); ++ releaseBuffers(); + } + + inline + Face::Table::operator const byte * () const throw() + { + return _p; + } + +diff --git a/gfx/graphite2/src/inc/FeatureMap.h b/gfx/graphite2/src/inc/FeatureMap.h +--- a/gfx/graphite2/src/inc/FeatureMap.h ++++ b/gfx/graphite2/src/inc/FeatureMap.h +@@ -51,17 +51,17 @@ private: + }; + + class FeatureRef + { + typedef uint32 chunk_t; + static const uint8 SIZEOF_CHUNK = sizeof(chunk_t)*8; + + public: +- FeatureRef() : m_nameValues(0) {} ++ FeatureRef(); + FeatureRef(const Face & face, unsigned short & bits_offset, uint32 max_val, + uint32 name, uint16 uiName, uint16 flags, + FeatureSetting *settings, uint16 num_set) throw(); + ~FeatureRef() throw(); + + bool applyValToFeature(uint32 val, Features& pDest) const; //defined in GrFaceImp.h + void maskFeature(Features & pDest) const { + if (m_index < pDest.size()) //defensive +@@ -94,16 +94,26 @@ private: + byte m_bits, // how many bits to shift the value into place + m_index; // index into the array to find the ulong to mask + + private: //unimplemented + FeatureRef& operator=(const FeatureRef&); + }; + + ++inline ++FeatureRef::FeatureRef() ++: m_pFace(0), m_nameValues(0), ++ m_mask(0), m_max(0), m_id(0), ++ m_nameid(0), m_flags(0), m_numSet(0), ++ m_bits(0), m_index(0) ++{ ++} ++ ++ + class NameAndFeatureRef + { + public: + NameAndFeatureRef(uint32 name = 0) : m_name(name) , m_pFRef(NULL){} + NameAndFeatureRef(const FeatureRef* p/*not NULL*/) : m_name(p->getId()), m_pFRef(p) {} + + bool operator<(const NameAndFeatureRef& rhs) const //orders by m_name + { return m_name<rhs.m_name; } +@@ -112,35 +122,34 @@ class NameAndFeatureRef + + uint32 m_name; + const FeatureRef* m_pFRef; + }; + + class FeatureMap + { + public: +- FeatureMap() : m_numFeats(0), m_feats(NULL), m_pNamedFeats(NULL), +- m_defaultFeatures(NULL) {} +- ~FeatureMap() { delete [] m_feats; delete[] m_pNamedFeats; delete m_defaultFeatures; } ++ FeatureMap() : m_numFeats(0), m_feats(NULL), m_pNamedFeats(NULL) {} ++ ~FeatureMap() { delete [] m_feats; delete[] m_pNamedFeats; } + + bool readFeats(const Face & face); + const FeatureRef *findFeatureRef(uint32 name) const; + FeatureRef *feature(uint16 index) const { return m_feats + index; } + //GrFeatureRef *featureRef(byte index) { return index < m_numFeats ? m_feats + index : NULL; } + const FeatureRef *featureRef(byte index) const { return index < m_numFeats ? m_feats + index : NULL; } + FeatureVal* cloneFeatures(uint32 langname/*0 means default*/) const; //call destroy_Features when done. + uint16 numFeats() const { return m_numFeats; }; + CLASS_NEW_DELETE + private: + friend class SillMap; + uint16 m_numFeats; + + FeatureRef *m_feats; + NameAndFeatureRef* m_pNamedFeats; //owned +- FeatureVal* m_defaultFeatures; //owned ++ FeatureVal m_defaultFeatures; //owned + + private: //defensive on m_feats, m_pNamedFeats, and m_defaultFeatures + FeatureMap(const FeatureMap&); + FeatureMap& operator=(const FeatureMap&); + }; + + + class SillMap +diff --git a/gfx/graphite2/src/inc/FileFace.h b/gfx/graphite2/src/inc/FileFace.h +--- a/gfx/graphite2/src/inc/FileFace.h ++++ b/gfx/graphite2/src/inc/FileFace.h +@@ -27,17 +27,17 @@ of the License or (at your option) any l + #pragma once + + //#include "inc/FeatureMap.h" + //#include "inc/GlyphsCache.h" + //#include "inc/Silf.h" + + #ifndef GRAPHITE2_NFILEFACE + +-#include <stdio.h> ++#include <cstdio> + #include <cassert> + + #include "graphite2/Font.h" + + #include "inc/Main.h" + #include "inc/TtfTypes.h" + #include "inc/TtfUtil.h" + +diff --git a/gfx/graphite2/src/inc/GlyphCache.h b/gfx/graphite2/src/inc/GlyphCache.h +--- a/gfx/graphite2/src/inc/GlyphCache.h ++++ b/gfx/graphite2/src/inc/GlyphCache.h +@@ -24,24 +24,73 @@ Mozilla Public License (http://mozilla.o + License, as published by the Free Software Foundation, either version 2 + of the License or (at your option) any later version. + */ + #pragma once + + + #include "graphite2/Font.h" + #include "inc/Main.h" ++#include "inc/Position.h" ++#include "inc/GlyphFace.h" + + namespace graphite2 { + + class Face; + class FeatureVal; +-class GlyphFace; + class Segment; + ++ ++struct SlantBox ++{ ++ static const SlantBox empty; ++ ++// SlantBox(float psi = 0., float pdi = 0., float psa = 0., float pda = 0.) : si(psi), di(pdi), sa(psa), da(pda) {}; ++ float width() const { return sa - si; } ++ float height() const { return da - di; } ++ float si; // min ++ float di; // min ++ float sa; // max ++ float da; // max ++}; ++ ++ ++struct BBox ++{ ++ BBox(float pxi = 0, float pyi = 0., float pxa = 0., float pya = 0.) : xi(pxi), yi(pyi), xa(pxa), ya(pya) {}; ++ float width() const { return xa - xi; } ++ float height() const { return ya - yi; } ++ float xi; // min ++ float yi; // min ++ float xa; // max ++ float ya; // max ++}; ++ ++ ++class GlyphBox ++{ ++ GlyphBox(const GlyphBox &); ++ GlyphBox & operator = (const GlyphBox &); ++ ++public: ++ GlyphBox(uint8 numsubs, unsigned short bitmap, Rect *slanted) : _num(numsubs), _bitmap(bitmap), _slant(*slanted) {}; ++ ++ void addSubBox(int subindex, int boundary, Rect *val) { _subs[subindex * 2 + boundary] = *val; } ++ Rect &subVal(int subindex, int boundary) { return _subs[subindex * 2 + boundary]; } ++ const Rect &slant() const { return _slant; } ++ uint8 num() const { return _num; } ++ const Rect *subs() const { return _subs; } ++ ++private: ++ uint8 _num; ++ unsigned short _bitmap; ++ Rect _slant; ++ Rect _subs[1]; ++}; ++ + class GlyphCache + { + class Loader; + + GlyphCache(const GlyphCache&); + GlyphCache& operator=(const GlyphCache&); + + public: +@@ -49,22 +98,34 @@ public: + ~GlyphCache(); + + unsigned short numGlyphs() const throw(); + unsigned short numAttrs() const throw(); + unsigned short unitsPerEm() const throw(); + + const GlyphFace *glyph(unsigned short glyphid) const; //result may be changed by subsequent call with a different glyphid + const GlyphFace *glyphSafe(unsigned short glyphid) const; ++ float getBoundingMetric(unsigned short glyphid, uint8 metric) const; ++ uint8 numSubBounds(unsigned short glyphid) const; ++ float getSubBoundingMetric(unsigned short glyphid, uint8 subindex, uint8 metric) const; ++ const Rect & slant(unsigned short glyphid) const { return _boxes[glyphid] ? _boxes[glyphid]->slant() : _empty_slant_box; } ++ const SlantBox & getBoundingSlantBox(unsigned short glyphid) const; ++ const BBox & getBoundingBBox(unsigned short glyphid) const; ++ const SlantBox & getSubBoundingSlantBox(unsigned short glyphid, uint8 subindex) const; ++ const BBox & getSubBoundingBBox(unsigned short glyphid, uint8 subindex) const; ++ bool check(unsigned short glyphid) const; ++ bool hasBoxes() const { return _boxes != 0; } + + CLASS_NEW_DELETE; + + private: ++ const Rect _empty_slant_box; + const Loader * _glyph_loader; + const GlyphFace * * _glyphs; ++ GlyphBox * * _boxes; + unsigned short _num_glyphs, + _num_attrs, + _upem; + }; + + inline + unsigned short GlyphCache::numGlyphs() const throw() + { +@@ -79,14 +140,84 @@ unsigned short GlyphCache::numAttrs() co + + inline + unsigned short GlyphCache::unitsPerEm() const throw() + { + return _upem; + } + + inline ++bool GlyphCache::check(unsigned short glyphid) const ++{ ++ return _boxes && glyphid < _num_glyphs; ++} ++ ++inline + const GlyphFace *GlyphCache::glyphSafe(unsigned short glyphid) const + { + return glyphid < _num_glyphs ? glyph(glyphid) : NULL; + } + ++inline ++float GlyphCache::getBoundingMetric(unsigned short glyphid, uint8 metric) const ++{ ++ if (glyphid >= _num_glyphs) return 0.; ++ switch (metric) { ++ case 0: return (float)(glyph(glyphid)->theBBox().bl.x); // x_min ++ case 1: return (float)(glyph(glyphid)->theBBox().bl.y); // y_min ++ case 2: return (float)(glyph(glyphid)->theBBox().tr.x); // x_max ++ case 3: return (float)(glyph(glyphid)->theBBox().tr.y); // y_max ++ case 4: return (float)(_boxes[glyphid] ? _boxes[glyphid]->slant().bl.x : 0.f); // sum_min ++ case 5: return (float)(_boxes[glyphid] ? _boxes[glyphid]->slant().bl.y : 0.f); // diff_min ++ case 6: return (float)(_boxes[glyphid] ? _boxes[glyphid]->slant().tr.x : 0.f); // sum_max ++ case 7: return (float)(_boxes[glyphid] ? _boxes[glyphid]->slant().tr.y : 0.f); // diff_max ++ default: return 0.; ++ } ++} ++ ++inline const SlantBox &GlyphCache::getBoundingSlantBox(unsigned short glyphid) const ++{ ++ return _boxes[glyphid] ? *(SlantBox *)(&(_boxes[glyphid]->slant())) : SlantBox::empty; ++} ++ ++inline const BBox &GlyphCache::getBoundingBBox(unsigned short glyphid) const ++{ ++ return *(BBox *)(&(glyph(glyphid)->theBBox())); ++} ++ ++inline ++float GlyphCache::getSubBoundingMetric(unsigned short glyphid, uint8 subindex, uint8 metric) const ++{ ++ GlyphBox *b = _boxes[glyphid]; ++ if (b == NULL || subindex >= b->num()) return 0; ++ ++ switch (metric) { ++ case 0: return b->subVal(subindex, 0).bl.x; ++ case 1: return b->subVal(subindex, 0).bl.y; ++ case 2: return b->subVal(subindex, 0).tr.x; ++ case 3: return b->subVal(subindex, 0).tr.y; ++ case 4: return b->subVal(subindex, 1).bl.x; ++ case 5: return b->subVal(subindex, 1).bl.y; ++ case 6: return b->subVal(subindex, 1).tr.x; ++ case 7: return b->subVal(subindex, 1).tr.y; ++ default: return 0.; ++ } ++} ++ ++inline const SlantBox &GlyphCache::getSubBoundingSlantBox(unsigned short glyphid, uint8 subindex) const ++{ ++ GlyphBox *b = _boxes[glyphid]; ++ return *(SlantBox *)(b->subs() + 2 * subindex + 1); ++} ++ ++inline const BBox &GlyphCache::getSubBoundingBBox(unsigned short glyphid, uint8 subindex) const ++{ ++ GlyphBox *b = _boxes[glyphid]; ++ return *(BBox *)(b->subs() + 2 * subindex); ++} ++ ++inline ++uint8 GlyphCache::numSubBounds(unsigned short glyphid) const ++{ ++ return _boxes[glyphid] ? _boxes[glyphid]->num() : 0; ++} ++ + } // namespace graphite2 +diff --git a/gfx/graphite2/src/inc/Intervals.h b/gfx/graphite2/src/inc/Intervals.h +new file mode 100644 +--- /dev/null ++++ b/gfx/graphite2/src/inc/Intervals.h +@@ -0,0 +1,234 @@ ++/* GRAPHITE2 LICENSING ++ ++ Copyright 2010, SIL International ++ All rights reserved. ++ ++ This library is free software; you can redistribute it and/or modify ++ it under the terms of the GNU Lesser General Public License as published ++ by the Free Software Foundation; either version 2.1 of License, or ++ (at your option) any later version. ++ ++ This program is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ Lesser General Public License for more details. ++ ++ You should also have received a copy of the GNU Lesser General Public ++ License along with this library in the file named "LICENSE". ++ If not, write to the Free Software Foundation, 51 Franklin Street, ++ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the ++ internet at http://www.fsf.org/licenses/lgpl.html. ++ ++Alternatively, the contents of this file may be used under the terms of the ++Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public ++License, as published by the Free Software Foundation, either version 2 ++of the License or (at your option) any later version. ++*/ ++#pragma once ++ ++#include <utility> ++ ++#include "inc/Main.h" ++#include "inc/List.h" ++#include "inc/json.h" ++#include "inc/Position.h" ++ ++// An IntervalSet represents the possible movement of a given glyph in a given direction ++// (horizontally, vertically, or diagonally). ++// A vector is needed to represent disjoint ranges, eg, -300..-150, 20..200, 500..750. ++// Each pair represents the min/max of a sub-range. ++ ++namespace graphite2 { ++ ++class Segment; ++ ++enum zones_t {SD, XY}; ++ ++class Zones ++{ ++ struct Exclusion ++ { ++ template<zones_t O> ++ static Exclusion weighted(float xmin, float xmax, float f, float a0, ++ float m, float xi, float ai, float c, bool nega); ++ ++ float x, // x position ++ xm, // xmax position ++ c, // constant + sum(MiXi^2) ++ sm, // sum(Mi) ++ smx; // sum(MiXi) ++ bool open; ++ ++ Exclusion(float x, float w, float smi, float smxi, float c); ++ Exclusion & operator += (Exclusion const & rhs); ++ uint8 outcode(float p) const; ++ ++ Exclusion split_at(float p); ++ void left_trim(float p); ++ ++ bool track_cost(float & cost, float & x, float origin) const; ++ ++ private: ++ float test_position(float origin) const; ++ float cost(float x) const; ++ }; ++ ++ typedef Vector<Exclusion> exclusions; ++ ++ typedef exclusions::iterator iterator; ++ typedef Exclusion * pointer; ++ typedef Exclusion & reference; ++ typedef std::reverse_iterator<iterator> reverse_iterator; ++ ++public: ++ typedef exclusions::const_iterator const_iterator; ++ typedef Exclusion const * const_pointer; ++ typedef Exclusion const & const_reference; ++ typedef std::reverse_iterator<const_iterator> const_reverse_iterator; ++ ++#if !defined GRAPHITE2_NTRACING ++ struct Debug ++ { ++ Exclusion _excl; ++ bool _isdel; ++ Vector<void *> _env; ++ ++ Debug(Exclusion *e, bool isdel, json *dbg) : _excl(*e), _isdel(isdel), _env(dbg->getenvs()) { }; ++ }; ++ ++ typedef Vector<Debug> debugs; ++ typedef debugs::const_iterator idebugs; ++ void addDebug(Exclusion *e); ++ void removeDebug(float pos, float posm); ++ void setdebug(json *dbgout) { _dbg = dbgout; } ++ idebugs dbgs_begin() const { return _dbgs.begin(); } ++ idebugs dbgs_end() const { return _dbgs.end(); } ++ void jsonDbgOut(Segment *seg) const; ++ Position position() const { return Position(_pos, _posm); } ++#endif ++ ++ Zones(); ++ template<zones_t O> ++ void initialise(float xmin, float xmax, float margin_len, float margin_weight, float ao); ++ ++ void exclude(float xmin, float xmax); ++ void exclude_with_margins(float xmin, float xmax, int axis); ++ ++ template<zones_t O> ++ void weighted(float xmin, float xmax, float f, float a0, float mi, float xi, float ai, float c, bool nega); ++ void weightedAxis(int axis, float xmin, float xmax, float f, float a0, float mi, float xi, float ai, float c, bool nega); ++ ++ float closest( float origin, float &cost) const; ++ ++ const_iterator begin() const { return _exclusions.begin(); } ++ const_iterator end() const { return _exclusions.end(); } ++ ++private: ++ exclusions _exclusions; ++#if !defined GRAPHITE2_NTRACING ++ json * _dbg; ++ debugs _dbgs; ++#endif ++ float _margin_len, ++ _margin_weight, ++ _pos, ++ _posm; ++ ++ void insert(Exclusion e); ++ void remove(float x, float xm); ++ const_iterator find_exclusion_under(float x) const; ++}; ++ ++ ++inline ++Zones::Zones() ++: _margin_len(0), _margin_weight(0), _pos(0), _posm(0) ++{ ++#if !defined GRAPHITE2_NTRACING ++ _dbg = 0; ++#endif ++ _exclusions.reserve(8); ++} ++ ++inline ++Zones::Exclusion::Exclusion(float x_, float xm_, float smi, float smxi, float c_) ++: x(x_), xm(xm_), c(c_), sm(smi), smx(smxi), open(false) ++{ } ++ ++template<zones_t O> ++inline ++void Zones::initialise(float xmin, float xmax, float margin_len, ++ float margin_weight, float a0) ++{ ++ _margin_len = margin_len; ++ _margin_weight = margin_weight; ++ _pos = xmin; ++ _posm = xmax; ++ _exclusions.clear(); ++ _exclusions.push_back(Exclusion::weighted<O>(xmin, xmax, 1, a0, 0, 0, 0, 0, false)); ++ _exclusions.front().open = true; ++#if !defined GRAPHITE2_NTRACING ++ _dbgs.clear(); ++#endif ++} ++ ++inline ++void Zones::exclude(float xmin, float xmax) { ++ remove(xmin, xmax); ++} ++ ++template<zones_t O> ++inline ++void Zones::weighted(float xmin, float xmax, float f, float a0, ++ float m, float xi, float ai, float c, bool nega) { ++ insert(Exclusion::weighted<O>(xmin, xmax, f, a0, m, xi, ai, c, nega)); ++} ++ ++inline ++void Zones::weightedAxis(int axis, float xmin, float xmax, float f, float a0, ++ float m, float xi, float ai, float c, bool nega) { ++ if (axis < 2) ++ weighted<XY>(xmin, xmax, f, a0, m, xi, ai, c, nega); ++ else ++ weighted<SD>(xmin, xmax, f, a0, m, xi, ai, c, nega); ++} ++ ++#if !defined GRAPHITE2_NTRACING ++inline ++void Zones::addDebug(Exclusion *e) { ++ if (_dbg) ++ _dbgs.push_back(Debug(e, false, _dbg)); ++} ++ ++inline ++void Zones::removeDebug(float pos, float posm) { ++ if (_dbg) ++ { ++ Exclusion e(pos, posm, 0, 0, 0); ++ _dbgs.push_back(Debug(&e, true, _dbg)); ++ } ++} ++#endif ++ ++template<> ++inline ++Zones::Exclusion Zones::Exclusion::weighted<XY>(float xmin, float xmax, float f, float a0, ++ float m, float xi, GR_MAYBE_UNUSED float ai, float c, GR_MAYBE_UNUSED bool nega) { ++ return Exclusion(xmin, xmax, ++ m + f, ++ m * xi, ++ m * xi * xi + f * a0 * a0 + c); ++} ++ ++template<> ++inline ++Zones::Exclusion Zones::Exclusion::weighted<SD>(float xmin, float xmax, float f, float a0, ++ float m, float xi, float ai,float c, bool nega) { ++ float xia = nega ? xi - ai : xi + ai; ++ return Exclusion(xmin, xmax, ++ 0.25f * (m + 2.f * f), ++ 0.25f * m * xia, ++ 0.25f * (m * xia * xia + 2.f * f * a0 * a0) + c); ++} ++ ++} // end of namespace graphite2 +diff --git a/gfx/graphite2/src/inc/List.h b/gfx/graphite2/src/inc/List.h +--- a/gfx/graphite2/src/inc/List.h ++++ b/gfx/graphite2/src/inc/List.h +@@ -65,29 +65,30 @@ public: + iterator end() { return m_last; } + const_iterator end() const { return m_last; } + + bool empty() const { return m_first == m_last; } + size_t size() const { return m_last - m_first; } + size_t capacity() const{ return m_end - m_first; } + + void reserve(size_t n); ++ void resize(size_t n, const T & v = T()); + + reference front() { assert(size() > 0); return *begin(); } + const_reference front() const { assert(size() > 0); return *begin(); } + reference back() { assert(size() > 0); return *(end()-1); } + const_reference back() const { assert(size() > 0); return *(end()-1); } + + Vector<T> & operator = (const Vector<T> & rhs) { assign(rhs.begin(), rhs.end()); return *this; } + reference operator [] (size_t n) { assert(size() > n); return m_first[n]; } + const_reference operator [] (size_t n) const { assert(size() > n); return m_first[n]; } + + void assign(size_t n, const T& u) { clear(); insert(begin(), n, u); } + void assign(const_iterator first, const_iterator last) { clear(); insert(begin(), first, last); } +- iterator insert(iterator p, const T & x) { p = _insert_default(p, 1); *p = x; return p; } ++ iterator insert(iterator p, const T & x) { p = _insert_default(p, 1); new (p) T(x); return p; } + void insert(iterator p, size_t n, const T & x); + void insert(iterator p, const_iterator first, const_iterator last); + void pop_back() { assert(size() > 0); --m_last; } + void push_back(const T &v) { if (m_last == m_end) reserve(size()+1); new (m_last++) T(v); } + + void clear() { erase(begin(), end()); } + iterator erase(iterator p) { return erase(p, p+1); } + iterator erase(iterator first, iterator last); +@@ -99,28 +100,37 @@ private: + template <typename T> + inline + void Vector<T>::reserve(size_t n) + { + if (n > capacity()) + { + const ptrdiff_t sz = size(); + m_first = static_cast<T*>(realloc(m_first, n*sizeof(T))); ++ if (!m_first) std::abort(); + m_last = m_first + sz; + m_end = m_first + n; + } + } + ++template <typename T> ++inline ++void Vector<T>::resize(size_t n, const T & v) { ++ const ptrdiff_t d = n-size(); ++ if (d < 0) erase(end()+d, end()); ++ else if (d > 0) insert(end(), d, v); ++} ++ + template<typename T> + inline + typename Vector<T>::iterator Vector<T>::_insert_default(iterator p, size_t n) + { + assert(begin() <= p && p <= end()); + const ptrdiff_t i = p - begin(); +- reserve((size() + n + 7) >> 3 << 3); ++ reserve(((size() + n + 7) >> 3) << 3); + p = begin() + i; + // Move tail if there is one + if (p != end()) memmove(p + n, p, distance(p,end())*sizeof(T)); + m_last += n; + return p; + } + + template<typename T> +diff --git a/gfx/graphite2/src/inc/Machine.h b/gfx/graphite2/src/inc/Machine.h +--- a/gfx/graphite2/src/inc/Machine.h ++++ b/gfx/graphite2/src/inc/Machine.h +@@ -105,17 +105,19 @@ enum opcode { + + PUSH_IGLYPH_ATTR, // not implemented + + POP_RET, RET_ZERO, RET_TRUE, + IATTR_SET, IATTR_ADD, IATTR_SUB, + PUSH_PROC_STATE, PUSH_VERSION, + PUT_SUBS, PUT_SUBS2, PUT_SUBS3, + PUT_GLYPH, PUSH_GLYPH_ATTR, PUSH_ATT_TO_GLYPH_ATTR, +- MAX_OPCODE, ++ BITOR, BITAND, BITNOT, ++ BITSET, SET_FEAT, ++ MAX_OPCODE, + // private opcodes for internal use only, comes after all other on disk opcodes + TEMP_COPY = MAX_OPCODE + }; + + struct opcode_t + { + instr impl[2]; + uint8 param_sz; +@@ -143,17 +145,17 @@ public: + + Machine(SlotMap &) throw(); + static const opcode_t * getOpcodeTable() throw(); + + CLASS_NEW_DELETE; + + SlotMap & slotMap() const throw(); + status_t status() const throw(); +- operator bool () const throw(); ++// operator bool () const throw(); + + private: + void check_final_stack(const stack_t * const sp); + stack_t run(const instr * program, const byte * data, + slotref * & map) HOT; + + SlotMap & _map; + stack_t _stack[STACK_MAX + 2*STACK_GUARD]; +diff --git a/gfx/graphite2/src/inc/Main.h b/gfx/graphite2/src/inc/Main.h +--- a/gfx/graphite2/src/inc/Main.h ++++ b/gfx/graphite2/src/inc/Main.h +@@ -80,25 +80,25 @@ struct telemetry {}; + // typesafe wrapper around malloc for simple types + // use free(pointer) to deallocate + + template <typename T> T * gralloc(size_t n) + { + #ifdef GRAPHITE2_TELEMETRY + telemetry::count_bytes(sizeof(T) * n); + #endif +- return reinterpret_cast<T*>(malloc(sizeof(T) * n)); ++ return static_cast<T*>(malloc(sizeof(T) * n)); + } + + template <typename T> T * grzeroalloc(size_t n) + { + #ifdef GRAPHITE2_TELEMETRY + telemetry::count_bytes(sizeof(T) * n); + #endif +- return reinterpret_cast<T*>(calloc(n, sizeof(T))); ++ return static_cast<T*>(calloc(n, sizeof(T))); + } + + template <typename T> + inline T min(const T a, const T b) + { + return a < b ? a : b; + } + +@@ -115,13 +115,32 @@ inline T max(const T a, const T b) + void * operator new (size_t, void * p) throw() { return p; } \ + void * operator new[] (size_t size) {return gralloc<byte>(size);} \ + void * operator new[] (size_t, void * p) throw() { return p; } \ + void operator delete (void * p) throw() { free(p);} \ + void operator delete (void *, void *) throw() {} \ + void operator delete[] (void * p)throw() { free(p); } \ + void operator delete[] (void *, void *) throw() {} + +-#ifdef __GNUC__ ++#if defined(__GNUC__) || defined(__clang__) + #define GR_MAYBE_UNUSED __attribute__((unused)) + #else + #define GR_MAYBE_UNUSED + #endif ++ ++#if defined(__clang__) && __cplusplus >= 201103L ++ /* clang's fallthrough annotations are only available starting in C++11. */ ++ #define GR_FALLTHROUGH [[clang::fallthrough]] ++#elif defined(_MSC_VER) ++ /* ++ * MSVC's __fallthrough annotations are checked by /analyze (Code Analysis): ++ * https://msdn.microsoft.com/en-us/library/ms235402%28VS.80%29.aspx ++ */ ++ #include <sal.h> ++ #define GR_FALLTHROUGH __fallthrough ++#else ++ #define GR_FALLTHROUGH /* fallthrough */ ++#endif ++ ++#ifdef _MSC_VER ++#pragma warning(disable: 4800) ++#pragma warning(disable: 4355) ++#endif +diff --git a/gfx/graphite2/src/inc/Pass.h b/gfx/graphite2/src/inc/Pass.h +--- a/gfx/graphite2/src/inc/Pass.h ++++ b/gfx/graphite2/src/inc/Pass.h +@@ -34,65 +34,85 @@ namespace graphite2 { + class Segment; + class Face; + class Silf; + struct Rule; + struct RuleEntry; + struct State; + class FiniteStateMachine; + class Error; ++class ShiftCollider; ++class KernCollider; ++class json; ++ ++enum passtype; + + class Pass + { + public: + Pass(); + ~Pass(); + +- bool readPass(const byte * pPass, size_t pass_length, size_t subtable_base, Face & face, Error &e); +- void runGraphite(vm::Machine & m, FiniteStateMachine & fsm) const; ++ bool readPass(const byte * pPass, size_t pass_length, size_t subtable_base, Face & face, ++ enum passtype pt, uint32 version, Error &e); ++ bool runGraphite(vm::Machine & m, FiniteStateMachine & fsm, bool reverse) const; + void init(Silf *silf) { m_silf = silf; } +- byte spaceContextuals() const { return (m_flags & 0x0E) >> 1; } ++ byte collisionLoops() const { return m_numCollRuns; } ++ bool reverseDir() const { return m_isReverseDir; } + + CLASS_NEW_DELETE + private: + void findNDoRule(Slot* & iSlot, vm::Machine &, FiniteStateMachine& fsm) const; + int doAction(const vm::Machine::Code* codeptr, Slot * & slot_out, vm::Machine &) const; + bool testPassConstraint(vm::Machine & m) const; + bool testConstraint(const Rule & r, vm::Machine &) const; + bool readRules(const byte * rule_map, const size_t num_entries, + const byte *precontext, const uint16 * sort_key, + const uint16 * o_constraint, const byte *constraint_data, + const uint16 * o_action, const byte * action_data, +- Face &, Error &e); ++ Face &, enum passtype pt, Error &e); + bool readStates(const byte * starts, const byte * states, const byte * o_rule_map, Face &, Error &e); + bool readRanges(const byte * ranges, size_t num_ranges, Error &e); + uint16 glyphToCol(const uint16 gid) const; + bool runFSM(FiniteStateMachine & fsm, Slot * slot) const; + void dumpRuleEventConsidered(const FiniteStateMachine & fsm, const RuleEntry & re) const; +- void dumpRuleEventOutput(const FiniteStateMachine & fsm, const Rule & r, Slot * os) const; ++ void dumpRuleEventOutput(const FiniteStateMachine & fsm, vm::Machine & m, const Rule & r, Slot * os) const; + void adjustSlot(int delta, Slot * & slot_out, SlotMap &) const; +- const Silf* m_silf; +- uint16 * m_cols; +- Rule * m_rules; // rules +- RuleEntry * m_ruleMap; +- uint16 * m_startStates; // prectxt length +- uint16 * m_transitions; +- State * m_states; +- +- byte m_flags; ++ bool collisionShift(Segment *seg, int dir, json * const dbgout) const; ++ bool collisionKern(Segment *seg, int dir, json * const dbgout) const; ++ bool collisionFinish(Segment *seg, GR_MAYBE_UNUSED json * const dbgout) const; ++ bool resolveCollisions(Segment *seg, Slot *slot, Slot *start, ShiftCollider &coll, bool isRev, ++ int dir, bool &moved, bool &hasCol, json * const dbgout) const; ++ float resolveKern(Segment *seg, Slot *slot, Slot *start, KernCollider &coll, int dir, ++ float &ymin, float &ymax, json *const dbgout) const; ++ ++ const Silf * m_silf; ++ uint16 * m_cols; ++ Rule * m_rules; // rules ++ RuleEntry * m_ruleMap; ++ uint16 * m_startStates; // prectxt length ++ uint16 * m_transitions; ++ State * m_states; ++ vm::Machine::Code * m_codes; ++ byte * m_progs; ++ ++ byte m_numCollRuns; ++ byte m_kernColls; + byte m_iMaxLoop; + uint16 m_numGlyphs; + uint16 m_numRules; + uint16 m_numStates; + uint16 m_numTransition; + uint16 m_numSuccess; + uint16 m_successStart; + uint16 m_numColumns; + byte m_minPreCtxt; + byte m_maxPreCtxt; ++ byte m_colThreshold; ++ bool m_isReverseDir; + vm::Machine::Code m_cPConstraint; + + private: //defensive + Pass(const Pass&); + Pass& operator=(const Pass&); + }; + + } // namespace graphite2 +diff --git a/gfx/graphite2/src/inc/Position.h b/gfx/graphite2/src/inc/Position.h +--- a/gfx/graphite2/src/inc/Position.h ++++ b/gfx/graphite2/src/inc/Position.h +@@ -45,15 +45,24 @@ public: + + class Rect + { + public : + Rect() {} + Rect(const Position& botLeft, const Position& topRight): bl(botLeft), tr(topRight) {} + Rect widen(const Rect& other) { return Rect(Position(bl.x > other.bl.x ? other.bl.x : bl.x, bl.y > other.bl.y ? other.bl.y : bl.y), Position(tr.x > other.tr.x ? tr.x : other.tr.x, tr.y > other.tr.y ? tr.y : other.tr.y)); } + Rect operator + (const Position &a) const { return Rect(Position(bl.x + a.x, bl.y + a.y), Position(tr.x + a.x, tr.y + a.y)); } ++ Rect operator - (const Position &a) const { return Rect(Position(bl.x - a.x, bl.y - a.y), Position(tr.x - a.x, tr.y - a.y)); } + Rect operator * (float m) const { return Rect(Position(bl.x, bl.y) * m, Position(tr.x, tr.y) * m); } ++ float width() const { return tr.x - bl.x; } ++ float height() const { return tr.y - bl.y; } ++ ++ bool hitTest(Rect &other); ++ ++ // returns Position(overlapx, overlapy) where overlap<0 if overlapping else positive) ++ Position overlap(Position &offset, Rect &other, Position &otherOffset); ++ //Position constrainedAvoid(Position &offset, Rect &box, Rect &sdbox, Position &other, Rect &obox, Rect &osdbox); + + Position bl; + Position tr; + }; + + } // namespace graphite2 +diff --git a/gfx/graphite2/src/inc/Rule.h b/gfx/graphite2/src/inc/Rule.h +--- a/gfx/graphite2/src/inc/Rule.h ++++ b/gfx/graphite2/src/inc/Rule.h +@@ -36,30 +36,36 @@ struct Rule { + const vm::Machine::Code * constraint, + * action; + unsigned short sort; + byte preContext; + #ifndef NDEBUG + uint16 rule_idx; + #endif + +- Rule() : constraint(0), action(0), sort(0), preContext(0) {} +- ~Rule(); ++ Rule(); ++ ~Rule() {} + + CLASS_NEW_DELETE; + + private: + Rule(const Rule &); + Rule & operator = (const Rule &); + }; + +-inline Rule::~Rule() ++inline ++Rule::Rule() ++: constraint(0), ++ action(0), ++ sort(0), ++ preContext(0) + { +- delete constraint; +- delete action; ++#ifndef NDEBUG ++ rule_idx = 0; ++#endif + } + + + struct RuleEntry + { + const Rule * rule; + + inline +@@ -91,40 +97,43 @@ bool State::empty() const + return rules_end == rules; + } + + + class SlotMap + { + public: + enum {MAX_SLOTS=64}; +- SlotMap(Segment & seg); ++ SlotMap(Segment & seg, uint8 direction); + + Slot * * begin(); + Slot * * end(); + size_t size() const; + unsigned short context() const; + void reset(Slot &, unsigned short); + + Slot * const & operator[](int n) const; + Slot * & operator [] (int); + void pushSlot(Slot * const slot); +- void collectGarbage(); ++ void collectGarbage(Slot *& aSlot); + + Slot * highwater() { return m_highwater; } + void highwater(Slot *s) { m_highwater = s; m_highpassed = false; } + bool highpassed() const { return m_highpassed; } + void highpassed(bool v) { m_highpassed = v; } + ++ uint8 dir() const { return m_dir; } ++ + Segment & segment; + private: + Slot * m_slot_map[MAX_SLOTS+1]; + unsigned short m_size; + unsigned short m_precontext; + Slot * m_highwater; ++ uint8 m_dir; + bool m_highpassed; + }; + + + class FiniteStateMachine + { + public: + enum {MAX_RULES=128}; +@@ -228,18 +237,18 @@ void FiniteStateMachine::Rules::accumula + return; + } + } + while (rre != rrend && out != lrend) { *out++ = *rre++; } + m_end = out; + } + + inline +-SlotMap::SlotMap(Segment & seg) +-: segment(seg), m_size(0), m_precontext(0), m_highwater(0), m_highpassed(false) ++SlotMap::SlotMap(Segment & seg, uint8 direction) ++: segment(seg), m_size(0), m_precontext(0), m_highwater(0), m_dir(direction), m_highpassed(false) + { + m_slot_map[0] = 0; + } + + inline + Slot * * SlotMap::begin() + { + return &m_slot_map[1]; // allow map to go 1 before slot_map when inserting +diff --git a/gfx/graphite2/src/inc/SegCache.h b/gfx/graphite2/src/inc/SegCache.h +--- a/gfx/graphite2/src/inc/SegCache.h ++++ b/gfx/graphite2/src/inc/SegCache.h +@@ -258,17 +258,17 @@ public: + + CLASS_NEW_DELETE + private: + void freeLevel(SegCacheStore * store, SegCachePrefixArray prefixes, size_t level); + void purgeLevel(SegCacheStore * store, SegCachePrefixArray prefixes, size_t level, + unsigned long long minAccessCount, unsigned long long oldAccessTime); + + uint16 m_prefixLength; +- uint16 m_maxCachedSegLength; ++// uint16 m_maxCachedSegLength; + size_t m_segmentCount; + SegCachePrefixArray m_prefixes; + Features m_features; + mutable unsigned long long m_totalAccessCount; + mutable unsigned long long m_totalMisses; + float m_purgeFactor; + }; + +diff --git a/gfx/graphite2/src/inc/Segment.h b/gfx/graphite2/src/inc/Segment.h +--- a/gfx/graphite2/src/inc/Segment.h ++++ b/gfx/graphite2/src/inc/Segment.h +@@ -30,29 +30,28 @@ of the License or (at your option) any l + + #include <cassert> + + #include "inc/CharInfo.h" + #include "inc/Face.h" + #include "inc/FeatureVal.h" + #include "inc/GlyphCache.h" + #include "inc/GlyphFace.h" +-//#include "inc/Silf.h" + #include "inc/Slot.h" + #include "inc/Position.h" + #include "inc/List.h" +-#include "inc/Bidi.h" ++#include "inc/Collider.h" + + #define MAX_SEG_GROWTH_FACTOR 256 + + namespace graphite2 { + + typedef Vector<Features> FeatureList; + typedef Vector<Slot *> SlotRope; +-typedef Vector<int16 *> AttributeRope; ++typedef Vector<int16 *> AttributeRope; + typedef Vector<SlotJustify *> JustifyRope; + + #ifndef GRAPHITE2_NSEGCACHE + class SegmentScopeState; + #endif + class Font; + class Segment; + class Silf; +@@ -81,119 +80,151 @@ private: + + class Segment + { + // Prevent copying of any kind. + Segment(const Segment&); + Segment& operator=(const Segment&); + + public: ++ ++ enum { ++ SEG_INITCOLLISIONS = 1, ++ SEG_HASCOLLISIONS = 2 ++ }; ++ + unsigned int slotCount() const { return m_numGlyphs; } //one slot per glyph + void extendLength(int num) { m_numGlyphs += num; } + Position advance() const { return m_advance; } + bool runGraphite() { if (m_silf) return m_face->runGraphite(this, m_silf); else return true;}; + void chooseSilf(uint32 script) { m_silf = m_face->chooseSilf(script); } + const Silf *silf() const { return m_silf; } + unsigned int charInfoCount() const { return m_numCharinfo; } + const CharInfo *charinfo(unsigned int index) const { return index < m_numCharinfo ? m_charinfo + index : NULL; } + CharInfo *charinfo(unsigned int index) { return index < m_numCharinfo ? m_charinfo + index : NULL; } +- int8 dir() const { return m_dir; } + + Segment(unsigned int numchars, const Face* face, uint32 script, int dir); + ~Segment(); + #ifndef GRAPHITE2_NSEGCACHE + SegmentScopeState setScope(Slot * firstSlot, Slot * lastSlot, size_t subLength); + void removeScope(SegmentScopeState & state); + void append(const Segment &other); + void splice(size_t offset, size_t length, Slot * const startSlot, + Slot * endSlot, const Slot * srcSlot, + const size_t numGlyphs); + #endif ++ uint8 flags() const { return m_flags; } ++ void flags(uint8 f) { m_flags = f; } + Slot *first() { return m_first; } + void first(Slot *p) { m_first = p; } + Slot *last() { return m_last; } + void last(Slot *p) { m_last = p; } + void appendSlot(int i, int cid, int gid, int fid, size_t coffset); + Slot *newSlot(); + void freeSlot(Slot *); + SlotJustify *newJustify(); + void freeJustify(SlotJustify *aJustify); +- Position positionSlots(const Font *font, Slot *first=0, Slot *last=0); ++ Position positionSlots(const Font *font=0, Slot *first=0, Slot *last=0, bool isRtl = false, bool isFinal = true); + void associateChars(int offset, int num); + void linkClusters(Slot *first, Slot *last); + uint16 getClassGlyph(uint16 cid, uint16 offset) const { return m_silf->getClassGlyph(cid, offset); } + uint16 findClassIndex(uint16 cid, uint16 gid) const { return m_silf->findClassIndex(cid, gid); } + int addFeatures(const Features& feats) { m_feats.push_back(feats); return m_feats.size() - 1; } + uint32 getFeature(int index, uint8 findex) const { const FeatureRef* pFR=m_face->theSill().theFeatureMap().featureRef(findex); if (!pFR) return 0; else return pFR->getFeatureVal(m_feats[index]); } ++ void setFeature(int index, uint8 findex, uint32 val) { ++ const FeatureRef* pFR=m_face->theSill().theFeatureMap().featureRef(findex); ++ if (pFR) ++ { ++ if (val > pFR->maxVal()) val = pFR->maxVal(); ++ pFR->applyValToFeature(val, m_feats[index]); ++ } } ++ int8 dir() const { return m_dir; } + void dir(int8 val) { m_dir = val; } ++ bool currdir() const { return ((m_dir >> 6) ^ m_dir) & 1; } + unsigned int passBits() const { return m_passBits; } + void mergePassBits(const unsigned int val) { m_passBits &= val; } + int16 glyphAttr(uint16 gid, uint16 gattr) const { const GlyphFace * p = m_face->glyphs().glyphSafe(gid); return p ? p->attrs()[gattr] : 0; } +- int32 getGlyphMetric(Slot *iSlot, uint8 metric, uint8 attrLevel) const; ++ int32 getGlyphMetric(Slot *iSlot, uint8 metric, uint8 attrLevel, bool rtl) const; + float glyphAdvance(uint16 gid) const { return m_face->glyphs().glyph(gid)->theAdvance().x; } + const Rect &theGlyphBBoxTemporary(uint16 gid) const { return m_face->glyphs().glyph(gid)->theBBox(); } //warning value may become invalid when another glyph is accessed + Slot *findRoot(Slot *is) const { return is->attachedTo() ? findRoot(is->attachedTo()) : is; } + int numAttrs() const { return m_silf->numUser(); } + int defaultOriginal() const { return m_defaultOriginal; } + const Face * getFace() const { return m_face; } + const Features & getFeatures(unsigned int /*charIndex*/) { assert(m_feats.size() == 1); return m_feats[0]; } +- void bidiPass(uint8 aBidi, int paradir, uint8 aMirror); ++ void bidiPass(int paradir, uint8 aMirror); ++ int8 getSlotBidiClass(Slot *s) const; ++ void doMirror(uint16 aMirror); + Slot *addLineEnd(Slot *nSlot); + void delLineEnd(Slot *s); + bool hasJustification() const { return m_justifies.size() != 0; } ++ void reverseSlots(); + + bool isWhitespace(const int cid) const; +- ++ bool hasCollisionInfo() const { return (m_flags & SEG_HASCOLLISIONS); } ++ SlotCollision *collisionInfo(const Slot *s) const { return m_collisions ? m_collisions + s->index() : 0; } + CLASS_NEW_DELETE + + public: //only used by: GrSegment* makeAndInitialize(const GrFont *font, const GrFace *face, uint32 script, const FeaturesHandle& pFeats/*must not be IsNull*/, encform enc, const void* pStart, size_t nChars, int dir); + bool read_text(const Face *face, const Features* pFeats/*must not be NULL*/, gr_encform enc, const void*pStart, size_t nChars); +- void prepare_pos(const Font *font); +- void finalise(const Font *font); ++ void finalise(const Font *font, bool reverse=false); + float justify(Slot *pSlot, const Font *font, float width, enum justFlags flags, Slot *pFirst, Slot *pLast); ++ bool initCollisions(); + + private: + Position m_advance; // whole segment advance + SlotRope m_slots; // Vector of slot buffers + AttributeRope m_userAttrs; // Vector of userAttrs buffers + JustifyRope m_justifies; // Slot justification info buffers + FeatureList m_feats; // feature settings referenced by charinfos in this segment + Slot * m_freeSlots; // linked list of free slots + SlotJustify * m_freeJustifies; // Slot justification blocks free list + CharInfo * m_charinfo; // character info, one per input character ++ SlotCollision * m_collisions; + const Face * m_face; // GrFace + const Silf * m_silf; + Slot * m_first; // first slot in segment + Slot * m_last; // last slot in segment + unsigned int m_bufSize, // how big a buffer to create when need more slots + m_numGlyphs, + m_numCharinfo, // size of the array and number of input characters + m_passBits; // if bit set then skip pass + int m_defaultOriginal; // number of whitespace chars in the string + int8 m_dir; ++ uint8 m_flags; // General purpose flags + }; + +- ++inline ++int8 Segment::getSlotBidiClass(Slot *s) const ++{ ++ int8 res = s->getBidiClass(); ++ if (res != -1) return res; ++ res = int8(glyphAttr(s->gid(), m_silf->aBidi())); ++ s->setBidiClass(res); ++ return res; ++} + + inline +-void Segment::finalise(const Font *font) ++void Segment::finalise(const Font *font, bool reverse) + { + if (!m_first) return; + +- m_advance = positionSlots(font); +- associateChars(0, m_numCharinfo); ++ m_advance = positionSlots(font, m_first, m_last, m_silf->dir(), true); ++ //associateChars(0, m_numCharinfo); ++ if (reverse && currdir() != (m_dir & 1)) ++ reverseSlots(); + linkClusters(m_first, m_last); + } + + inline +-int32 Segment::getGlyphMetric(Slot *iSlot, uint8 metric, uint8 attrLevel) const { ++int32 Segment::getGlyphMetric(Slot *iSlot, uint8 metric, uint8 attrLevel, bool rtl) const { + if (attrLevel > 0) + { + Slot *is = findRoot(iSlot); +- return is->clusterMetric(this, metric, attrLevel); ++ return is->clusterMetric(this, metric, attrLevel, rtl); + } + else + return m_face->getGlyphMetric(iSlot->gid(), metric); + } + + inline + bool Segment::isWhitespace(const int cid) const + { +@@ -206,68 +237,12 @@ bool Segment::isWhitespace(const int cid + + (cid >= 0x2000) * (cid <= 0x200A) + + (cid == 0x2028) + + (cid == 0x2029) + + (cid == 0x202F) + + (cid == 0x205F) + + (cid == 0x3000)) != 0; + } + +-//inline +-//bool Segment::isWhitespace(const int cid) const +-//{ +-// switch (cid >> 8) +-// { +-// case 0x00: +-// switch (cid) +-// { +-// case 0x09: +-// case 0x0A: +-// case 0x0B: +-// case 0x0C: +-// case 0x0D: +-// case 0x20: +-// return true; +-// default: +-// break; +-// } +-// break; +-// case 0x16: +-// return cid == 0x1680; +-// break; +-// case 0x18: +-// return cid == 0x180E; +-// break; +-// case 0x20: +-// switch (cid) +-// { +-// case 0x00: +-// case 0x01: +-// case 0x02: +-// case 0x03: +-// case 0x04: +-// case 0x05: +-// case 0x06: +-// case 0x07: +-// case 0x08: +-// case 0x09: +-// case 0x0A: +-// case 0x28: +-// case 0x29: +-// case 0x2F: +-// case 0x5F: +-// return true +-// default: +-// break; +-// } +-// break; +-// case 0x30: +-// return cid == 0x3000; +-// break; +-// } +-// +-// return false; +-//} +- + } // namespace graphite2 + + struct gr_segment : public graphite2::Segment {}; + +diff --git a/gfx/graphite2/src/inc/Silf.h b/gfx/graphite2/src/inc/Silf.h +--- a/gfx/graphite2/src/inc/Silf.h ++++ b/gfx/graphite2/src/inc/Silf.h +@@ -80,24 +80,26 @@ public: + uint16 getClassGlyph(uint16 cid, unsigned int index) const; + uint16 findPseudo(uint32 uid) const; + uint8 numUser() const { return m_aUser; } + uint8 aPseudo() const { return m_aPseudo; } + uint8 aBreak() const { return m_aBreak; } + uint8 aMirror() const {return m_aMirror; } + uint8 aPassBits() const { return m_aPassBits; } + uint8 aBidi() const { return m_aBidi; } ++ uint8 aCollision() const { return m_aCollision; } + uint8 substitutionPass() const { return m_sPass; } + uint8 positionPass() const { return m_pPass; } + uint8 justificationPass() const { return m_jPass; } + uint8 bidiPass() const { return m_bPass; } + uint8 numPasses() const { return m_numPasses; } + uint8 maxCompPerLig() const { return m_iMaxComp; } + uint16 numClasses() const { return m_nClass; } + byte flags() const { return m_flags; } ++ byte dir() const { return m_dir; } + uint8 numJustLevels() const { return m_numJusts; } + Justinfo *justAttrs() const { return m_justs; } + uint16 endLineGlyphid() const { return m_gEndLine; } + const gr_faceinfo *silfInfo() const { return &m_silfinfo; } + + CLASS_NEW_DELETE; + + private: +@@ -107,23 +109,20 @@ private: + Pass * m_passes; + Pseudo * m_pseudos; + uint32 * m_classOffsets; + uint16 * m_classData; + Justinfo * m_justs; + uint8 m_numPasses; + uint8 m_numJusts; + uint8 m_sPass, m_pPass, m_jPass, m_bPass, +- m_flags; ++ m_flags, m_dir; + +- uint8 m_aPseudo, m_aBreak, m_aUser, m_aBidi, m_aMirror, m_aPassBits, +- m_iMaxComp; +- uint16 m_aLig, +- m_numPseudo, +- m_nClass, +- m_nLinear, +- m_gEndLine; ++ uint8 m_aPseudo, m_aBreak, m_aUser, m_aBidi, m_aMirror, m_aPassBits, ++ m_iMaxComp, m_aCollision; ++ uint16 m_aLig, m_numPseudo, m_nClass, m_nLinear, ++ m_gEndLine; + gr_faceinfo m_silfinfo; + + void releaseBuffers() throw(); + }; + + } // namespace graphite2 +diff --git a/gfx/graphite2/src/inc/Slot.h b/gfx/graphite2/src/inc/Slot.h +--- a/gfx/graphite2/src/inc/Slot.h ++++ b/gfx/graphite2/src/inc/Slot.h +@@ -27,25 +27,23 @@ of the License or (at your option) any l + #pragma once + + #include "graphite2/Types.h" + #include "graphite2/Segment.h" + #include "inc/Main.h" + #include "inc/Font.h" + #include "inc/Position.h" + +- +- + namespace graphite2 { + + typedef gr_attrCode attrCode; + + class GlyphFace; ++class SegCacheEntry; + class Segment; +-class SegCacheEntry; + + struct SlotJustify + { + static const int NUMJUSTPARAMS = 5; + + SlotJustify(const SlotJustify &); + SlotJustify & operator = (const SlotJustify &); + +@@ -70,73 +68,79 @@ class Slot + }; + + public: + struct iterator; + + unsigned short gid() const { return m_glyphid; } + Position origin() const { return m_position; } + float advance() const { return m_advance.x; } ++ void advance(Position &val) { m_advance = val; } + Position advancePos() const { return m_advance; } + int before() const { return m_before; } + int after() const { return m_after; } + uint32 index() const { return m_index; } + void index(uint32 val) { m_index = val; } + +- Slot(); ++ Slot(int16 *m_userAttr = NULL); + void set(const Slot & slot, int charOffset, size_t numUserAttr, size_t justLevels, size_t numChars); + Slot *next() const { return m_next; } + void next(Slot *s) { m_next = s; } + Slot *prev() const { return m_prev; } + void prev(Slot *s) { m_prev = s; } + uint16 glyph() const { return m_realglyphid ? m_realglyphid : m_glyphid; } + void setGlyph(Segment *seg, uint16 glyphid, const GlyphFace * theGlyph = NULL); + void setRealGid(uint16 realGid) { m_realglyphid = realGid; } + void adjKern(const Position &pos) { m_shift = m_shift + pos; m_advance = m_advance + pos; } + void origin(const Position &pos) { m_position = pos + m_shift; } + void originate(int ind) { m_original = ind; } + int original() const { return m_original; } + void before(int ind) { m_before = ind; } + void after(int ind) { m_after = ind; } + bool isBase() const { return (!m_parent); } + void update(int numSlots, int numCharInfo, Position &relpos); +- Position finalise(const Segment* seg, const Font* font, Position & base, Rect & bbox, uint8 attrLevel, float & clusterMin); ++ Position finalise(const Segment* seg, const Font* font, Position & base, Rect & bbox, uint8 attrLevel, float & clusterMin, bool rtl, bool isFinal); + bool isDeleted() const { return (m_flags & DELETED) ? true : false; } + void markDeleted(bool state) { if (state) m_flags |= DELETED; else m_flags &= ~DELETED; } + bool isCopied() const { return (m_flags & COPIED) ? true : false; } + void markCopied(bool state) { if (state) m_flags |= COPIED; else m_flags &= ~COPIED; } + bool isPositioned() const { return (m_flags & POSITIONED) ? true : false; } + void markPositioned(bool state) { if (state) m_flags |= POSITIONED; else m_flags &= ~POSITIONED; } + bool isInsertBefore() const { return !(m_flags & INSERTED); } + uint8 getBidiLevel() const { return m_bidiLevel; } + void setBidiLevel(uint8 level) { m_bidiLevel = level; } ++ int8 getBidiClass(const Segment *seg); + int8 getBidiClass() const { return m_bidiCls; } + void setBidiClass(int8 cls) { m_bidiCls = cls; } + int16 *userAttrs() const { return m_userAttr; } + void userAttrs(int16 *p) { m_userAttr = p; } + void markInsertBefore(bool state) { if (!state) m_flags |= INSERTED; else m_flags &= ~INSERTED; } + void setAttr(Segment* seg, attrCode ind, uint8 subindex, int16 val, const SlotMap & map); + int getAttr(const Segment *seg, attrCode ind, uint8 subindex) const; + int getJustify(const Segment *seg, uint8 level, uint8 subindex) const; + void setJustify(Segment *seg, uint8 level, uint8 subindex, int16 value); + bool isLocalJustify() const { return m_justs != NULL; }; + void attachTo(Slot *ap) { m_parent = ap; } + Slot *attachedTo() const { return m_parent; } + Position attachOffset() const { return m_attach - m_with; } + Slot* firstChild() const { return m_child; } ++ void firstChild(Slot *ap) { m_child = ap; } + bool child(Slot *ap); + Slot* nextSibling() const { return m_sibling; } ++ void nextSibling(Slot *ap) { m_sibling = ap; } + bool sibling(Slot *ap); + bool removeChild(Slot *ap); + bool removeSibling(Slot *ap); +- int32 clusterMetric(const Segment* seg, uint8 metric, uint8 attrLevel); ++ int32 clusterMetric(const Segment* seg, uint8 metric, uint8 attrLevel, bool rtl); + void positionShift(Position a) { m_position += a; } + void floodShift(Position adj); + float just() const { return m_just; } + void just(float j) { m_just = j; } ++ Slot *nextInCluster(const Slot *s) const; ++ bool isChildOf(const Slot *base) const; + + CLASS_NEW_DELETE + + private: + Slot *m_next; // linked list of slots + Slot *m_prev; + unsigned short m_glyphid; // glyph id + uint16 m_realglyphid; +diff --git a/gfx/graphite2/src/inc/Sparse.h b/gfx/graphite2/src/inc/Sparse.h +--- a/gfx/graphite2/src/inc/Sparse.h ++++ b/gfx/graphite2/src/inc/Sparse.h +@@ -51,17 +51,17 @@ private: + static const unsigned char SIZEOF_CHUNK = (sizeof(mask_t) - sizeof(key_type))*8; + + struct chunk + { + mask_t mask:SIZEOF_CHUNK; + key_type offset; + }; + +- static chunk empty_chunk; ++ static const chunk empty_chunk; + sparse(const sparse &); + sparse & operator = (const sparse &); + + public: + template<typename I> + sparse(I first, const I last); + sparse() throw(); + ~sparse() throw(); +@@ -83,17 +83,17 @@ private: + } m_array; + key_type m_nchunks; + }; + + + inline + sparse::sparse() throw() : m_nchunks(0) + { +- m_array.map = &empty_chunk; ++ m_array.map = const_cast<graphite2::sparse::chunk *>(&empty_chunk); + } + + + template <typename I> + sparse::sparse(I attr, const I last) + : m_nchunks(0) + { + m_array.map = 0; +@@ -108,30 +108,31 @@ sparse::sparse(I attr, const I last) + if (v.first <= lastkey) { m_nchunks = 0; return; } + + lastkey = v.first; + const key_type k = v.first / SIZEOF_CHUNK; + if (k >= m_nchunks) m_nchunks = k+1; + } + if (m_nchunks == 0) + { +- m_array.map=&empty_chunk; ++ m_array.map=const_cast<graphite2::sparse::chunk *>(&empty_chunk); + return; + } + + m_array.values = grzeroalloc<mapped_type>((m_nchunks*sizeof(chunk) + sizeof(mapped_type)-1) + / sizeof(mapped_type) + + n_values); + + if (m_array.values == 0) + { + free(m_array.values); m_array.map=0; + return; + } + ++ // coverity[forward_null : FALSE] Since m_array is union and m_array.values is not NULL + chunk * ci = m_array.map; + ci->offset = (m_nchunks*sizeof(chunk) + sizeof(mapped_type)-1)/sizeof(mapped_type); + mapped_type * vi = m_array.values + ci->offset; + for (; attr != last; ++attr, ++vi) + { + const typename std::iterator_traits<I>::value_type v = *attr; + if (v.second == 0) { --vi; continue; } + +diff --git a/gfx/graphite2/src/inc/TtfUtil.h b/gfx/graphite2/src/inc/TtfUtil.h +--- a/gfx/graphite2/src/inc/TtfUtil.h ++++ b/gfx/graphite2/src/inc/TtfUtil.h +@@ -132,21 +132,21 @@ public: + int GetLangsForNames(const void * pName, int nPlatformId, int nEncodingId, + int *nameIdList, int cNameIds, short *langIdList); + void SwapWString(void * pWStr, size_t nSize = 0); // throw (std::invalid_argument); + #endif + + ////////////////////////////////// cmap lookup tools + const void * FindCmapSubtable(const void * pCmap, int nPlatformId = 3, + int nEncodingId = 1, size_t length = 0); +- bool CheckCmapSubtable4(const void * pCmap31); ++ bool CheckCmapSubtable4(const void * pCmap31, size_t table_len /*, unsigned int maxgid*/); + gid16 CmapSubtable4Lookup(const void * pCmapSubtabel4, unsigned int nUnicodeId, int rangeKey = 0); + unsigned int CmapSubtable4NextCodepoint(const void *pCmap31, unsigned int nUnicodeId, + int * pRangeKey = 0); +- bool CheckCmapSubtable12(const void *pCmap310); ++ bool CheckCmapSubtable12(const void *pCmap310, size_t table_len /*, unsigned int maxgid*/); + gid16 CmapSubtable12Lookup(const void * pCmap310, unsigned int uUnicodeId, int rangeKey = 0); + unsigned int CmapSubtable12NextCodepoint(const void *pCmap310, unsigned int nUnicodeId, + int * pRangeKey = 0); + + ///////////////////////////////// horizontal metric data for a glyph + bool HorMetrics(gid16 nGlyphId, const void * pHmtx, size_t lHmtxSize, + const void * pHhea, int & nLsb, unsigned int & nAdvWid); + +diff --git a/gfx/graphite2/src/inc/UtfCodec.h b/gfx/graphite2/src/inc/UtfCodec.h +--- a/gfx/graphite2/src/inc/UtfCodec.h ++++ b/gfx/graphite2/src/inc/UtfCodec.h +@@ -126,19 +126,22 @@ public: + static uchar_t get(const codeunit_t * cp, int8 & l) throw() + { + const int8 seq_sz = sz_lut[*cp >> 4]; + uchar_t u = *cp & mask_lut[seq_sz]; + l = 1; + bool toolong = false; + + switch(seq_sz) { +- case 4: u <<= 6; u |= *++cp & 0x3F; if (*cp >> 6 != 2) break; ++l; toolong = (u < 0x10); // no break +- case 3: u <<= 6; u |= *++cp & 0x3F; if (*cp >> 6 != 2) break; ++l; toolong |= (u < 0x20); // no break +- case 2: u <<= 6; u |= *++cp & 0x3F; if (*cp >> 6 != 2) break; ++l; toolong |= (u < 0x80); // no break ++ case 4: u <<= 6; u |= *++cp & 0x3F; if (*cp >> 6 != 2) break; ++l; toolong = (u < 0x10); GR_FALLTHROUGH; ++ // no break ++ case 3: u <<= 6; u |= *++cp & 0x3F; if (*cp >> 6 != 2) break; ++l; toolong |= (u < 0x20); GR_FALLTHROUGH; ++ // no break ++ case 2: u <<= 6; u |= *++cp & 0x3F; if (*cp >> 6 != 2) break; ++l; toolong |= (u < 0x80); GR_FALLTHROUGH; ++ // no break + case 1: break; + case 0: l = -1; return 0xFFFD; + } + + if (l != seq_sz || toolong) + { + l = -l; + return 0xFFFD; +diff --git a/gfx/graphite2/src/inc/bits.h b/gfx/graphite2/src/inc/bits.h +--- a/gfx/graphite2/src/inc/bits.h ++++ b/gfx/graphite2/src/inc/bits.h +@@ -24,25 +24,73 @@ Mozilla Public License (http://mozilla.o + License, as published by the Free Software Foundation, either version 2 + of the License or (at your option) any later version. + */ + #pragma once + + namespace graphite2 + { + ++ ++#if defined GRAPHITE2_BUILTINS && (defined __GNUC__ || defined __clang__) ++ + template<typename T> + inline unsigned int bit_set_count(T v) + { +- v = v - ((v >> 1) & T(~T(0)/3)); // temp +- v = (v & T(~T(0)/15*3)) + ((v >> 2) & T(~T(0)/15*3)); // temp +- v = (v + (v >> 4)) & T(~T(0)/255*15); // temp +- return (T)(v * T(~T(0)/255)) >> (sizeof(T)-1)*8; // count ++ return __builtin_popcount(v); + } + ++template<> ++inline unsigned int bit_set_count(int16 v) ++{ ++ return __builtin_popcount(static_cast<uint16>(v)); ++} ++ ++template<> ++inline unsigned int bit_set_count(int8 v) ++{ ++ return __builtin_popcount(static_cast<uint8>(v)); ++} ++ ++template<> ++inline unsigned int bit_set_count(unsigned long v) ++{ ++ return __builtin_popcountl(v); ++} ++ ++template<> ++inline unsigned int bit_set_count(signed long v) ++{ ++ return __builtin_popcountl(v); ++} ++ ++template<> ++inline unsigned int bit_set_count(unsigned long long v) ++{ ++ return __builtin_popcountll(v); ++} ++ ++template<> ++inline unsigned int bit_set_count(signed long long v) ++{ ++ return __builtin_popcountll(v); ++} ++#else ++ ++template<typename T> ++inline unsigned int bit_set_count(T v) ++{ ++ v = v - ((v >> 1) & T(~(0UL)/3)); // temp ++ v = (v & T(~(0UL)/15*3)) + ((v >> 2) & T(~(0UL)/15*3)); // temp ++ v = (v + (v >> 4)) & T(~(0UL)/255*15); // temp ++ return (T)(v * T(~(0UL)/255)) >> (sizeof(T)-1)*8; // count ++} ++ ++#endif ++ + + template<int S> + inline unsigned long _mask_over_val(unsigned long v) + { + v = _mask_over_val<S/2>(v); + v |= v >> S*4; + return v; + } +@@ -82,9 +130,17 @@ inline T has_zero(const T x) + + template<typename T> + inline T zero_bytes(const T x, unsigned char n) + { + const T t = T(~T(0)/255*n); + return T((has_zero(x^t) >> 7)*n); + } + ++#if 0 ++inline float float_round(float x, uint32 m) ++{ ++ *reinterpret_cast<unsigned int *>(&x) &= m; ++ return *reinterpret_cast<float *>(&x); + } ++#endif ++ ++} +diff --git a/gfx/graphite2/src/inc/debug.h b/gfx/graphite2/src/inc/debug.h +--- a/gfx/graphite2/src/inc/debug.h ++++ b/gfx/graphite2/src/inc/debug.h +@@ -49,31 +49,39 @@ struct objectid + { + char name[16]; + objectid(const dslot &) throw(); + objectid(const Segment * const p) throw(); + }; + + + json & operator << (json & j, const Position &) throw(); ++json & operator << (json & j, const Rect &) throw(); + json & operator << (json & j, const CharInfo &) throw(); + json & operator << (json & j, const dslot &) throw(); + json & operator << (json & j, const objectid &) throw(); + json & operator << (json & j, const telemetry &) throw(); + + + + inline + json & operator << (json & j, const Position & p) throw() + { + return j << json::flat << json::array << p.x << p.y << json::close; + } + + + inline ++json & operator << (json & j, const Rect & p) throw() ++{ ++ return j << json::flat << json::array << p.bl.x << p.bl.y << p.tr.x << p.tr.y << json::close; ++} ++ ++ ++inline + json & operator << (json & j, const objectid & sid) throw() + { + return j << sid.name; + } + + + } // namespace graphite2 + +diff --git a/gfx/graphite2/src/inc/json.h b/gfx/graphite2/src/inc/json.h +--- a/gfx/graphite2/src/inc/json.h ++++ b/gfx/graphite2/src/inc/json.h +@@ -24,19 +24,21 @@ Mozilla Public License (http://mozilla.o + License, as published by the Free Software Foundation, either version 2 + of the License or (at your option) any later version. + */ + // JSON pretty printer for graphite font debug output logging. + // Created on: 15 Dec 2011 + // Author: Tim Eves + + #pragma once ++ + #include "inc/Main.h" + #include <cassert> +-#include <stdio.h> ++#include <cstdio> ++#include "inc/List.h" + + namespace graphite2 { + + class json + { + // Prevent copying + json(const json &); + json & operator = (const json &); +@@ -44,31 +46,36 @@ class json + typedef void (*_context_t)(json &); + class _null_t {}; + + FILE * const _stream; + char _contexts[128], // context stack + * _context, // current context (top of stack) + * _flatten; // if !0 points to context above which + // pretty printed output should occur. ++ Vector<void *> _env; + + void context(const char current) throw(); + void indent(const int d=0) throw(); + void push_context(const char, const char) throw(); + void pop_context() throw(); + + public: + class closer; + + typedef const char * string; + typedef double number; + typedef long signed int integer; + typedef bool boolean; + static const _null_t null; + ++ void setenv(unsigned int index, void *val) { _env.reserve(index + 1); if (index >= _env.size()) _env.insert(_env.end(), _env.size() - index + 1, 0); _env[index] = val; } ++ void *getenv(unsigned int index) const { return _env[index]; } ++ const Vector<void *> &getenvs() const { return _env; } ++ + static void flat(json &) throw(); + static void close(json &) throw(); + static void object(json &) throw(); + static void array(json &) throw(); + static void item(json &) throw(); + + json(FILE * stream) throw(); + ~json() throw (); +diff --git a/gfx/graphite2/src/inc/opcode_table.h b/gfx/graphite2/src/inc/opcode_table.h +--- a/gfx/graphite2/src/inc/opcode_table.h ++++ b/gfx/graphite2/src/inc/opcode_table.h +@@ -38,17 +38,17 @@ of the License or (at your option) any l + // sattrnum - 0 .. 29 (gr_slatJWidth) , 55 (gr_slatUserDefn) + // attrid - 0 .. silf.numUser() where sattrnum == 55; 0..silf.m_iMaxComp where sattrnum == 15 otherwise 0 + // gattrnum - 0 .. face->getGlyphFaceCache->numAttrs() + // gmetric - 0 .. 11 (kgmetDescent) + // featidx - 0 .. face.numFeatures() + // level - any byte + static const opcode_t opcode_table[] = + { +- {{do2(nop)}, 0, "NOP"}, ++ {{do2(nop)}, 0, "NOP"}, + + {{do2(push_byte)}, 1, "PUSH_BYTE"}, // number + {{do2(push_byte_u)}, 1, "PUSH_BYTE_U"}, // number + {{do2(push_short)}, 2, "PUSH_SHORT"}, // number number + {{do2(push_short_u)}, 2, "PUSH_SHORT_U"}, // number number + {{do2(push_long)}, 4, "PUSH_LONG"}, // number number number number + + {{do2(add)}, 0, "ADD"}, +@@ -109,12 +109,17 @@ static const opcode_t opcode_table[] = + {{do2(push_proc_state)}, 1, "PUSH_PROC_STATE"}, // dummy + {{do2(push_version)}, 0, "PUSH_VERSION"}, + {{do_(put_subs), NILOP}, 5, "PUT_SUBS"}, // slot input_class input_class output_class output_class + {{NILOP,NILOP}, 0, "PUT_SUBS2"}, + {{NILOP,NILOP}, 0, "PUT_SUBS3"}, + {{do_(put_glyph), NILOP}, 2, "PUT_GLYPH"}, // output_class output_class + {{do2(push_glyph_attr)}, 3, "PUSH_GLYPH_ATTR"}, // gattrnum gattrnum slot + {{do2(push_att_to_glyph_attr)}, 3, "PUSH_ATT_TO_GLYPH_ATTR"}, // gattrnum gattrnum slot ++ {{do2(bor)}, 0, "BITOR"}, ++ {{do2(band)}, 0, "BITAND"}, ++ {{do2(bnot)}, 0, "BITNOT"}, // 0x40 ++ {{do2(setbits)}, 4, "BITSET"}, ++ {{do2(set_feat)}, 2, "SET_FEAT"}, + // private opcodes for internal use only, comes after all other on disk opcodes. + {{do_(temp_copy), NILOP}, 0, "TEMP_COPY"} + }; + +diff --git a/gfx/graphite2/src/inc/opcodes.h b/gfx/graphite2/src/inc/opcodes.h +--- a/gfx/graphite2/src/inc/opcodes.h ++++ b/gfx/graphite2/src/inc/opcodes.h +@@ -56,16 +56,17 @@ of the License or (at your option) any l + // pushed. + // seg = A reference to the Segment this code is running over. + // is = The current slot index + // isb = The original base slot index at the start of this rule + // isf = The first positioned slot + // isl = The last positioned slot + // ip = The current instruction pointer + // endPos = Position of advance of last cluster ++// dir = writing system directionality of the font + + + // #define NOT_IMPLEMENTED assert(false) + #define NOT_IMPLEMENTED + + #define binop(op) const int32 a = pop(); *sp = int32(*sp) op a + #define use_params(n) dp += n + +@@ -236,30 +237,34 @@ STARTOP(put_subs_8bit_obs) + index = seg.findClassIndex(input_class, slot->gid()); + is->setGlyph(&seg, seg.getClassGlyph(output_class, index)); + } + ENDOP + + STARTOP(put_copy) + declare_params(1); + const int slot_ref = int8(*param); +- if (is && (slot_ref ||is != *map)) ++ if (is) + { +- int16 *tempUserAttrs = is->userAttrs(); + slotref ref = slotat(slot_ref); +- if (ref) ++ if (ref && ref != is) + { +- memcpy(tempUserAttrs, ref->userAttrs(), seg.numAttrs() * sizeof(uint16)); ++ int16 *tempUserAttrs = is->userAttrs(); ++ if (is->attachedTo() || is->firstChild()) DIE + Slot *prev = is->prev(); + Slot *next = is->next(); +- memcpy(is, slotat(slot_ref), sizeof(Slot)); ++ memcpy(tempUserAttrs, ref->userAttrs(), seg.numAttrs() * sizeof(uint16)); ++ memcpy(is, ref, sizeof(Slot)); ++ is->firstChild(NULL); ++ is->nextSibling(NULL); + is->userAttrs(tempUserAttrs); + is->next(next); + is->prev(prev); +- is->sibling(NULL); ++ if (is->attachedTo()) ++ is->attachedTo()->child(is); + } + is->markCopied(false); + is->markDeleted(false); + } + ENDOP + + STARTOP(insert) + Slot *newSlot = seg.newSlot(); +@@ -304,24 +309,26 @@ STARTOP(insert) + { + newSlot->originate(newSlot->prev()->original()); + newSlot->after(newSlot->prev()->after()); + } + else + { + newSlot->originate(seg.defaultOriginal()); + } ++ if (is == smap.highwater()) ++ smap.highpassed(false); + is = newSlot; + seg.extendLength(1); + if (map != &smap[-1]) + --map; + ENDOP + + STARTOP(delete_) +- if (!is) DIE ++ if (!is || is->isDeleted()) DIE + is->markDeleted(true); + if (is->prev()) + is->prev()->next(is->next()); + else + seg.first(is->next()); + + if (is->next()) + is->next()->prev(is->prev()); +@@ -380,30 +387,30 @@ STARTOP(attr_set) + ENDOP + + STARTOP(attr_add) + declare_params(1); + const attrCode slat = attrCode(uint8(*param)); + const int val = int(pop()); + if ((slat == gr_slatPosX || slat == gr_slatPosY) && (flags & POSITIONED) == 0) + { +- seg.positionSlots(0, *smap.begin(), *(smap.end()-1)); ++ seg.positionSlots(0, *smap.begin(), *(smap.end()-1), dir); + flags |= POSITIONED; + } + int res = is->getAttr(&seg, slat, 0); + is->setAttr(&seg, slat, 0, val + res, smap); + ENDOP + + STARTOP(attr_sub) + declare_params(1); + const attrCode slat = attrCode(uint8(*param)); + const int val = int(pop()); + if ((slat == gr_slatPosX || slat == gr_slatPosY) && (flags & POSITIONED) == 0) + { +- seg.positionSlots(0, *smap.begin(), *(smap.end()-1)); ++ seg.positionSlots(0, *smap.begin(), *(smap.end()-1), dir); + flags |= POSITIONED; + } + int res = is->getAttr(&seg, slat, 0); + is->setAttr(&seg, slat, 0, res - val, smap); + ENDOP + + STARTOP(attr_set_slot) + declare_params(1); +@@ -422,17 +429,17 @@ STARTOP(iattr_set_slot) + ENDOP + + STARTOP(push_slot_attr) + declare_params(2); + const attrCode slat = attrCode(uint8(param[0])); + const int slot_ref = int8(param[1]); + if ((slat == gr_slatPosX || slat == gr_slatPosY) && (flags & POSITIONED) == 0) + { +- seg.positionSlots(0, *smap.begin(), *(smap.end()-1)); ++ seg.positionSlots(0, *smap.begin(), *(smap.end()-1), dir); + flags |= POSITIONED; + } + slotref slot = slotat(slot_ref); + if (slot) + { + int res = slot->getAttr(&seg, slat, 0); + push(res); + } +@@ -449,17 +456,17 @@ ENDOP + + STARTOP(push_glyph_metric) + declare_params(3); + const unsigned int glyph_attr = uint8(param[0]); + const int slot_ref = int8(param[1]); + const signed int attr_level = uint8(param[2]); + slotref slot = slotat(slot_ref); + if (slot) +- push(seg.getGlyphMetric(slot, glyph_attr, attr_level)); ++ push(seg.getGlyphMetric(slot, glyph_attr, attr_level, dir)); + ENDOP + + STARTOP(push_feat) + declare_params(2); + const unsigned int feat = uint8(param[0]); + const int slot_ref = int8(param[1]); + slotref slot = slotat(slot_ref); + if (slot) +@@ -487,28 +494,28 @@ STARTOP(push_att_to_glyph_metric) + const unsigned int glyph_attr = uint8(param[0]); + const int slot_ref = int8(param[1]); + const signed int attr_level = uint8(param[2]); + slotref slot = slotat(slot_ref); + if (slot) + { + slotref att = slot->attachedTo(); + if (att) slot = att; +- push(int32(seg.getGlyphMetric(slot, glyph_attr, attr_level))); ++ push(int32(seg.getGlyphMetric(slot, glyph_attr, attr_level, dir))); + } + ENDOP + + STARTOP(push_islot_attr) + declare_params(3); + const attrCode slat = attrCode(uint8(param[0])); + const int slot_ref = int8(param[1]), + idx = uint8(param[2]); + if ((slat == gr_slatPosX || slat == gr_slatPosY) && (flags & POSITIONED) == 0) + { +- seg.positionSlots(0, *smap.begin(), *(smap.end()-1)); ++ seg.positionSlots(0, *smap.begin(), *(smap.end()-1), dir); + flags |= POSITIONED; + } + slotref slot = slotat(slot_ref); + if (slot) + { + int res = slot->getAttr(&seg, slat, idx); + push(res); + } +@@ -543,31 +550,31 @@ ENDOP + + STARTOP(iattr_add) + declare_params(2); + const attrCode slat = attrCode(uint8(param[0])); + const size_t idx = uint8(param[1]); + const int val = int(pop()); + if ((slat == gr_slatPosX || slat == gr_slatPosY) && (flags & POSITIONED) == 0) + { +- seg.positionSlots(0, *smap.begin(), *(smap.end()-1)); ++ seg.positionSlots(0, *smap.begin(), *(smap.end()-1), dir); + flags |= POSITIONED; + } + int res = is->getAttr(&seg, slat, idx); + is->setAttr(&seg, slat, idx, val + res, smap); + ENDOP + + STARTOP(iattr_sub) + declare_params(2); + const attrCode slat = attrCode(uint8(param[0])); + const size_t idx = uint8(param[1]); + const int val = int(pop()); + if ((slat == gr_slatPosX || slat == gr_slatPosY) && (flags & POSITIONED) == 0) + { +- seg.positionSlots(0, *smap.begin(), *(smap.end()-1)); ++ seg.positionSlots(0, *smap.begin(), *(smap.end()-1), dir); + flags |= POSITIONED; + } + int res = is->getAttr(&seg, slat, idx); + is->setAttr(&seg, slat, idx, res - val, smap); + ENDOP + + STARTOP(push_proc_state) + use_params(1); +@@ -631,16 +638,50 @@ STARTOP(push_att_to_glyph_attr) + slotref att = slot->attachedTo(); + if (att) slot = att; + push(int32(seg.glyphAttr(slot->gid(), glyph_attr))); + } + ENDOP + + STARTOP(temp_copy) + slotref newSlot = seg.newSlot(); +- if (!newSlot) DIE; ++ if (!newSlot || !is) DIE; + int16 *tempUserAttrs = newSlot->userAttrs(); + memcpy(newSlot, is, sizeof(Slot)); + memcpy(tempUserAttrs, is->userAttrs(), seg.numAttrs() * sizeof(uint16)); + newSlot->userAttrs(tempUserAttrs); + newSlot->markCopied(true); + *map = newSlot; + ENDOP ++ ++STARTOP(band) ++ binop(&); ++ENDOP ++ ++STARTOP(bor) ++ binop(|); ++ENDOP ++ ++STARTOP(bnot) ++ *sp = ~*sp; ++ENDOP ++ ++STARTOP(setbits) ++ declare_params(4); ++ const uint16 m = uint16(param[0]) << 8 ++ | uint8(param[1]); ++ const uint16 v = uint16(param[2]) << 8 ++ | uint8(param[3]); ++ *sp = ((*sp) & ~m) | v; ++ENDOP ++ ++STARTOP(set_feat) ++ declare_params(2); ++ const unsigned int feat = uint8(param[0]); ++ const int slot_ref = int8(param[1]); ++ slotref slot = slotat(slot_ref); ++ if (slot) ++ { ++ uint8 fid = seg.charinfo(slot->original())->fid(); ++ seg.setFeature(fid, feat, pop()); ++ } ++ENDOP ++ +diff --git a/gfx/graphite2/src/json.cpp b/gfx/graphite2/src/json.cpp +--- a/gfx/graphite2/src/json.cpp ++++ b/gfx/graphite2/src/json.cpp +@@ -24,17 +24,18 @@ Mozilla Public License (http://mozilla.o + License, as published by the Free Software Foundation, either version 2 + of the License or (at your option) any later version. + */ + // JSON debug logging + // Author: Tim Eves + + #if !defined GRAPHITE2_NTRACING + +-#include <stdio.h> ++#include <cstdio> ++#include <limits> + #include "inc/json.h" + + using namespace graphite2; + + namespace + { + enum + { +@@ -111,16 +112,29 @@ json & json::operator << (json::string s + const char ctxt = _context[-1] == obj ? *_context == member ? seq : member : seq; + context(ctxt); + fprintf(_stream, "\"%s\"", s); + if (ctxt == member) fputc(' ', _stream); + + return *this; + } + +-json & json::operator << (json::number f) throw() { context(seq); fprintf(_stream, "%g", f); return *this; } ++json & json::operator << (json::number f) throw() ++{ ++ context(seq); ++ if (std::numeric_limits<json::number>::infinity() == f) ++ fputs("Infinity", _stream); ++ else if (-std::numeric_limits<json::number>::infinity() == f) ++ fputs("-Infinity", _stream); ++ else if (std::numeric_limits<json::number>::quiet_NaN() == f || ++ std::numeric_limits<json::number>::signaling_NaN() == f) ++ fputs("NaN", _stream); ++ else ++ fprintf(_stream, "%g", f); ++ return *this; ++} + json & json::operator << (json::integer d) throw() { context(seq); fprintf(_stream, "%ld", d); return *this; } + json & json::operator << (long unsigned d) throw() { context(seq); fprintf(_stream, "%ld", d); return *this; } + json & json::operator << (json::boolean b) throw() { context(seq); fputs(b ? "true" : "false", _stream); return *this; } + json & json::operator << (json::_null_t) throw() { context(seq); fputs("null",_stream); return *this; } + + #endif + +diff --git a/gfx/graphite2/src/moz.build b/gfx/graphite2/src/moz.build +--- a/gfx/graphite2/src/moz.build ++++ b/gfx/graphite2/src/moz.build +@@ -18,37 +18,40 @@ if CONFIG['GNU_CC']: + ] + else: + UNIFIED_SOURCES += [ + 'call_machine.cpp' + ] + + # This should contain all of the _SOURCES from files.mk, except *_machine.cpp + UNIFIED_SOURCES += [ +- 'Bidi.cpp', + 'CachedFace.cpp', + 'CmapCache.cpp', + 'Code.cpp', ++ 'Collider.cpp', ++ 'Decompressor.cpp', + 'Face.cpp', + 'FeatureMap.cpp', + 'FileFace.cpp', + 'Font.cpp', + 'GlyphCache.cpp', + 'GlyphFace.cpp', + 'gr_char_info.cpp', + 'gr_face.cpp', + 'gr_features.cpp', + 'gr_font.cpp', + 'gr_logging.cpp', + 'gr_segment.cpp', + 'gr_slot.cpp', ++ 'Intervals.cpp', + 'json.cpp', + 'Justifier.cpp', + 'NameTable.cpp', + 'Pass.cpp', ++ 'Position.cpp', + 'SegCache.cpp', + 'SegCacheEntry.cpp', + 'SegCacheStore.cpp', + 'Segment.cpp', + 'Silf.cpp', + 'Slot.cpp', + 'Sparse.cpp', + 'TtfUtil.cpp', + |