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-rw-r--r--gnu/packages/patches/icecat-update-bundled-graphite2.patch2488
1 files changed, 0 insertions, 2488 deletions
diff --git a/gnu/packages/patches/icecat-update-bundled-graphite2.patch b/gnu/packages/patches/icecat-update-bundled-graphite2.patch
deleted file mode 100644
index c3ab920335..0000000000
--- a/gnu/packages/patches/icecat-update-bundled-graphite2.patch
+++ /dev/null
@@ -1,2488 +0,0 @@
-
-# HG changeset patch
-# User Jonathan Kew <jkew@mozilla.com>
-# Date 1460660890 -3600
-# Node ID 7330633d20ffb33941e41ea0666c4099b6e6d317
-# Parent 5c312182da9020504103aa329360abaffa7e232d
-Bug 1262846 (patch for ESR trees) - Update Graphite2 library to 1.3.8. r=jrmuizel a=sledru
-
-diff --git a/gfx/graphite2/README.mozilla b/gfx/graphite2/README.mozilla
---- a/gfx/graphite2/README.mozilla
-+++ b/gfx/graphite2/README.mozilla
-@@ -1,3 +1,3 @@
--This directory contains the Graphite2 library release 1.3.6 from
--https://github.com/silnrsi/graphite/releases/download/1.3.6/graphite-minimal-1.3.6.tgz
-+This directory contains the Graphite2 library release 1.3.8 from
-+https://github.com/silnrsi/graphite/releases/download/1.3.8/graphite2-minimal-1.3.8.tgz
- See gfx/graphite2/moz-gr-update.sh for update procedure.
-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
-@@ -25,17 +25,17 @@
- 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 3
--#define GR2_VERSION_BUGFIX 6
-+#define GR2_VERSION_BUGFIX 8
-
- #ifdef __cplusplus
- extern "C"
- {
- #endif
-
- typedef struct gr_face gr_face;
- typedef struct gr_font gr_font;
-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
-@@ -14,17 +14,17 @@
- RELEASE=$1
-
- if [ "x$RELEASE" == "x" ]
- then
- echo "Must provide the version number to be used."
- exit 1
- fi
-
--TARBALL="https://github.com/silnrsi/graphite/releases/download/$RELEASE/graphite-minimal-$RELEASE.tgz"
-+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"
-
-diff --git a/gfx/graphite2/src/CachedFace.cpp b/gfx/graphite2/src/CachedFace.cpp
---- a/gfx/graphite2/src/CachedFace.cpp
-+++ b/gfx/graphite2/src/CachedFace.cpp
-@@ -64,20 +64,20 @@ bool CachedFace::runGraphite(Segment *se
- return false;
-
- assert(m_cacheStore);
- // find where the segment can be broken
- Slot * subSegStartSlot = seg->first();
- Slot * subSegEndSlot = subSegStartSlot;
- uint16 cmapGlyphs[eMaxSpliceSize];
- int subSegStart = 0;
-- for (unsigned int i = 0; i < seg->charInfoCount(); ++i)
-+ for (unsigned int i = 0; i < seg->charInfoCount() && subSegEndSlot; ++i)
- {
- const unsigned int length = i - subSegStart + 1;
-- if (length < eMaxSpliceSize)
-+ if (length < eMaxSpliceSize && subSegEndSlot->gid() < m_cacheStore->maxCmapGid())
- cmapGlyphs[length-1] = subSegEndSlot->gid();
- else return false;
- const bool spaceOnly = m_cacheStore->isSpaceGlyph(subSegEndSlot->gid());
- // at this stage the character to slot mapping is still 1 to 1
- const int breakWeight = seg->charinfo(i)->breakWeight(),
- nextBreakWeight = (i + 1 < seg->charInfoCount())?
- seg->charinfo(i+1)->breakWeight() : 0;
- const uint8 f = seg->charinfo(i)->flags();
-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
-@@ -61,93 +61,88 @@ inline bool is_return(const instr i) {
- const instr pop_ret = *opmap[POP_RET].impl,
- ret_zero = *opmap[RET_ZERO].impl,
- ret_true = *opmap[RET_TRUE].impl;
- return i == pop_ret || i == ret_zero || i == ret_true;
- }
-
- struct context
- {
-- context(uint8 ref=0) : codeRef(ref) {flags.changed=false; flags.referenced=false; flags.inserted=false;}
-+ context(uint8 ref=0) : codeRef(ref) {flags.changed=false; flags.referenced=false;}
- struct {
- uint8 changed:1,
-- referenced:1,
-- inserted:1;
-+ referenced:1;
- } flags;
- uint8 codeRef;
- };
-
- } // end namespace
-
-
- class Machine::Code::decoder
- {
- public:
- struct limits;
-- struct analysis
-- {
-- static const int NUMCONTEXTS = 256;
-- uint8 slotref;
-- context contexts[NUMCONTEXTS];
-- byte max_ref;
--
-- analysis() : slotref(0), max_ref(0) {};
-- void set_ref(int index, bool incinsert=false) throw();
-- void set_noref(int index) throw();
-- void set_changed(int index) throw();
--
-- };
-+ static const int NUMCONTEXTS = 256;
-
- 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; }
-+ byte max_ref() { return _max_ref; }
-+ int out_index() const { return _out_index; }
-
- private:
-+ void set_ref(int index) throw();
-+ void set_noref(int index) throw();
-+ void set_changed(int index) throw();
- 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 validate_opcode(const byte opc, const byte * const bc);
- bool valid_upto(const uint16 limit, const uint16 x) const throw();
- bool test_context() const throw();
-+ bool test_ref(int8 index) const throw();
- void failure(const status_t s) const throw() { _code.failure(s); }
-
- Code & _code;
-- int _pre_context;
-- uint16 _rule_length;
-+ int _out_index;
-+ uint16 _out_length;
- instr * _instr;
- byte * _data;
- limits & _max;
-- analysis _analysis;
- enum passtype _passtype;
- int _stack_depth;
- bool _in_ctxt_item;
-+ int16 _slotref;
-+ context _contexts[NUMCONTEXTS];
-+ byte _max_ref;
- };
-
-
- struct Machine::Code::decoder::limits
- {
- 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(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),
-+ _out_index(code._constraint ? 0 : lims.pre_context),
-+ _out_length(code._constraint ? 1 : lims.rule_length),
- _instr(code._code), _data(code._data), _max(lims), _passtype(pt),
- _stack_depth(0),
-- _in_ctxt_item(false)
-+ _in_ctxt_item(false),
-+ _slotref(0),
-+ _max_ref(0)
- { }
-
-
-
- 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,
- enum passtype pt, byte * * const _out)
- : _code(0), _data(0), _data_size(0), _instr_count(0), _max_ref(0), _status(loaded),
-@@ -163,17 +158,17 @@ Machine::Code::Code(bool is_constraint,
- return;
- }
- assert(bytecode_end > bytecode_begin);
- const opcode_t * op_to_fn = Machine::getOpcodeTable();
-
- // Allocate code and data target buffers, these sizes are a worst case
- // estimate. Once we know their real sizes the we'll shrink them.
- if (_out) _code = reinterpret_cast<instr *>(*_out);
-- else _code = static_cast<instr *>(malloc(estimateCodeDataOut(bytecode_end-bytecode_begin)));
-+ else _code = static_cast<instr *>(malloc(estimateCodeDataOut(bytecode_end-bytecode_begin, 1, is_constraint ? 0 : rule_length)));
- _data = reinterpret_cast<byte *>(_code + (bytecode_end - bytecode_begin));
-
- if (!_code || !_data) {
- failure(alloc_failed);
- return;
- }
-
- decoder::limits lims = {
-@@ -266,23 +261,23 @@ bool Machine::Code::decoder::load(const
- return bool(_code);
- }
-
- // Validation check and fixups.
- //
-
- opcode Machine::Code::decoder::fetch_opcode(const byte * bc)
- {
-- const opcode opc = opcode(*bc++);
-+ const byte opc = *bc++;
-
- // 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)
-+ switch (opcode(opc))
- {
- case NOP :
- break;
- case PUSH_BYTE :
- case PUSH_BYTEU :
- case PUSH_SHORT :
- case PUSH_SHORTU :
- case PUSH_LONG :
-@@ -319,47 +314,57 @@ opcode Machine::Code::decoder::fetch_opc
- 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;
-+ ++_out_index;
-+ if (_out_index < -1 || _out_index > _out_length || _slotref > _max.rule_length)
-+ failure(out_of_range_data);
- 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]));
-+ test_ref(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_ref(int8(bc[0]));
- test_context();
- break;
- case INSERT :
- if (_passtype >= PASS_TYPE_POSITIONING)
- failure(invalid_opcode);
-- else
-- --_pre_context;
-+ ++_out_length;
-+ if (_out_index < 0) ++_out_index;
-+ if (_out_index < -1 || _out_index >= _out_length)
-+ failure(out_of_range_data);
- break;
- case DELETE :
- if (_passtype >= PASS_TYPE_POSITIONING)
- failure(invalid_opcode);
-- test_context();
-+ if (_out_index < _max.pre_context)
-+ failure(out_of_range_data);
-+ --_out_index;
-+ --_out_length;
-+ if (_out_index < -1 || _out_index > _out_length)
-+ failure(out_of_range_data);
- break;
- case ASSOC :
-+ if (bc[0] == 0)
-+ failure(out_of_range_data);
- for (uint8 num = bc[0]; num; --num)
-- valid_upto(_rule_length, _pre_context + int8(bc[num]));
-+ test_ref(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 (_in_ctxt_item) failure(nested_context_item);
- break;
- case ATTR_SET :
-@@ -378,52 +383,43 @@ opcode Machine::Code::decoder::fetch_opc
- 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]));
-+ test_ref(int8(bc[1]));
- if (attrCode(bc[0]) == gr_slatUserDefn) // use IATTR for user attributes
- failure(out_of_range_data);
- break;
- case PUSH_GLYPH_ATTR_OBS :
-+ case PUSH_ATT_TO_GATTR_OBS :
- ++_stack_depth;
- valid_upto(_max.glyf_attrs, bc[0]);
-- valid_upto(_rule_length, _pre_context + int8(bc[1]));
-+ test_ref(int8(bc[1]));
- break;
-+ case PUSH_ATT_TO_GLYPH_METRIC :
- case PUSH_GLYPH_METRIC :
- ++_stack_depth;
- valid_upto(kgmetDescent, bc[0]);
-- valid_upto(_rule_length, _pre_context + int8(bc[1]));
-+ test_ref(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
-+ test_ref(int8(bc[1]));
- break;
- case PUSH_ISLOT_ATTR :
- ++_stack_depth;
- if (valid_upto(gr_slatMax, bc[0]))
- {
-- valid_upto(_rule_length, _pre_context + int8(bc[1]));
-+ test_ref(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)
-@@ -442,118 +438,107 @@ opcode Machine::Code::decoder::fetch_opc
- 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]));
-+ test_ref(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]));
-+ test_ref(int8(bc[2]));
-+ break;
-+ case SET_FEAT :
-+ valid_upto(_max.features, bc[0]);
-+ test_ref(int8(bc[1]));
- break;
- default:
- failure(invalid_opcode);
- break;
- }
-
-- return bool(_code) ? opc : MAX_OPCODE;
-+ return bool(_code) ? opcode(opc) : MAX_OPCODE;
- }
-
-
- void Machine::Code::decoder::analyse_opcode(const opcode opc, const int8 * arg) throw()
- {
-- if (_code._constraint) return;
--
- switch (opc)
- {
- case DELETE :
- _code._delete = true;
- break;
-+ case ASSOC :
-+ set_changed(0);
-+// for (uint8 num = arg[0]; num; --num)
-+// _analysis.set_noref(num);
-+ break;
- case PUT_GLYPH_8BIT_OBS :
- case PUT_GLYPH :
- _code._modify = true;
-- _analysis.set_changed(0);
-+ set_changed(0);
- break;
- case ATTR_SET :
- case ATTR_ADD :
-+ case ATTR_SUB :
- case ATTR_SET_SLOT :
- case IATTR_SET_SLOT :
- case IATTR_SET :
- case IATTR_ADD :
- case IATTR_SUB :
-- _analysis.set_noref(0);
-+ 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);
-+ ++_slotref;
-+ _contexts[_slotref] = context(_code._instr_count+1);
- // if (_analysis.slotref > _analysis.max_ref) _analysis.max_ref = _analysis.slotref;
- break;
- case INSERT :
-- _analysis.contexts[_analysis.slotref].flags.inserted = true;
-+ if (_slotref >= 0) --_slotref;
- _code._modify = true;
- break;
- case PUT_SUBS_8BIT_OBS : // slotref on 1st parameter
- case PUT_SUBS :
- _code._modify = true;
-- _analysis.set_changed(0);
-+ set_changed(0);
- GR_FALLTHROUGH;
- // no break
- case PUT_COPY :
-- {
-- 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(arg[0], true);
-- else if (arg[0] > 0)
-- _analysis.set_ref(arg[0], true);
-+ if (arg[0] != 0) { set_changed(0); _code._modify = true; }
-+ set_ref(arg[0]);
- 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_GATTR_OBS :
- 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(arg[1], true);
-- else if (arg[1] > 0)
-- _analysis.set_ref(arg[1], true);
-+ case SET_FEAT :
-+ set_ref(arg[1]);
- 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(arg[2], true);
-- else if (arg[2] > 0)
-- _analysis.set_ref(arg[2], true);
-- break;
-- case ASSOC : // slotrefs in varargs
-+ set_ref(arg[2]);
- break;
- default:
- break;
- }
- }
-
-
- bool Machine::Code::decoder::emit_opcode(opcode opc, const byte * & bc)
-@@ -579,81 +564,89 @@ bool Machine::Code::decoder::emit_opcode
- _data += param_sz;
- _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);
-+ assert(_out_index == 0);
- _in_ctxt_item = true;
-- _pre_context = _max.pre_context + int8(_data[-2]);
-- _rule_length = _max.rule_length;
-+ _out_index = _max.pre_context + int8(_data[-2]);
-+ _slotref = int8(_data[-2]);
-+ _out_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;
-+ _out_length = 1;
-+ _out_index = 0;
-+ _slotref = 0;
- _in_ctxt_item = false;
- }
- else
- {
-- _pre_context = 0;
-+ _out_index = 0;
-+ _slotref = 0;
- return false;
- }
- }
-
- return bool(_code);
- }
-
-
- void Machine::Code::decoder::apply_analysis(instr * const code, instr * code_end)
- {
- // insert TEMP_COPY commands for slots that need them (that change and are referenced later)
- int tempcount = 0;
- if (_code._constraint) return;
-
- const instr temp_copy = Machine::getOpcodeTable()[TEMP_COPY].impl[0];
-- for (const context * c = _analysis.contexts, * const ce = c + _analysis.slotref; c != ce; ++c)
-+ for (const context * c = _contexts, * const ce = c + _slotref; c < ce; ++c)
- {
- 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)
-+bool Machine::Code::decoder::validate_opcode(const byte opc, const byte * const bc)
- {
- if (opc >= MAX_OPCODE)
- {
- failure(invalid_opcode);
- return false;
- }
- const opcode_t & op = Machine::getOpcodeTable()[opc];
-+ if (op.impl[_code._constraint] == 0)
-+ {
-+ failure(unimplemented_opcode_used);
-+ return false;
-+ }
- 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 - 1 + param_sz >= _max.bytecode)
- {
-@@ -666,56 +659,69 @@ bool Machine::Code::decoder::validate_op
-
- bool Machine::Code::decoder::valid_upto(const uint16 limit, const uint16 x) const throw()
- {
- const bool t = (limit != 0) && (x < limit);
- if (!t) failure(out_of_range_data);
- return t;
- }
-
-+inline
-+bool Machine::Code::decoder::test_ref(int8 index) const throw()
-+{
-+ if (_code._constraint && !_in_ctxt_item)
-+ {
-+ if (index > 0 || -index > _max.pre_context)
-+ {
-+ failure(out_of_range_data);
-+ return false;
-+ }
-+ }
-+ else
-+ return valid_upto(_max.rule_length, _slotref + _max.pre_context + index);
-+ return true;
-+}
-+
- bool Machine::Code::decoder::test_context() const throw()
- {
-- if (_pre_context >= _rule_length || _analysis.slotref >= analysis::NUMCONTEXTS - 1)
-+ if (_out_index >= _out_length || _out_index < 0 || _slotref >= NUMCONTEXTS - 1)
- {
- 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(int index, bool incinsert) throw() {
-- if (incinsert && contexts[slotref].flags.inserted) --index;
-- if (index + slotref < 0 || index + slotref >= NUMCONTEXTS) return;
-- contexts[index + slotref].flags.referenced = true;
-- if ((index > 0 || !contexts[index + slotref].flags.inserted) && index + slotref > max_ref) max_ref = index + slotref;
-+void Machine::Code::decoder::set_ref(int index) throw() {
-+ if (index + _slotref < 0 || index + _slotref >= NUMCONTEXTS) return;
-+ _contexts[index + _slotref].flags.referenced = true;
-+ if (index + _slotref > _max_ref) _max_ref = index + _slotref;
- }
-
-
- inline
--void Machine::Code::decoder::analysis::set_noref(int index) throw() {
-- if (contexts[slotref].flags.inserted) --index;
-- if (index + slotref < 0 || index + slotref >= NUMCONTEXTS) return;
-- if ((index > 0 || !contexts[index + slotref].flags.inserted) && index + slotref > max_ref) max_ref = index + slotref;
-+void Machine::Code::decoder::set_noref(int index) throw() {
-+ if (index + _slotref < 0 || index + _slotref >= NUMCONTEXTS) return;
-+ if (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 || index + slotref >= NUMCONTEXTS) 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::decoder::set_changed(int index) throw() {
-+ if (index + _slotref < 0 || index + _slotref >= NUMCONTEXTS) return;
-+ _contexts[index + _slotref].flags.changed= true;
-+ if (index + _slotref > _max_ref) _max_ref = index + _slotref;
- }
-
-
- void Machine::Code::release_buffers() throw()
- {
- if (_own)
- free(_code);
- _code = 0;
-diff --git a/gfx/graphite2/src/Collider.cpp b/gfx/graphite2/src/Collider.cpp
---- a/gfx/graphite2/src/Collider.cpp
-+++ b/gfx/graphite2/src/Collider.cpp
-@@ -21,17 +21,17 @@
-
- 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 <cmath>
- #include <string>
- #include <functional>
- #include "inc/Collider.h"
- #include "inc/Segment.h"
- #include "inc/Slot.h"
- #include "inc/GlyphCache.h"
- #include "inc/Sparse.h"
-
-@@ -824,43 +824,43 @@ bool KernCollider::initSlot(Segment *seg
- 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;
-+ _maxy = ymax + margin;
-+ _miny = ymin - margin;
- 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);
-+ numSlices = int((ymin - margin - _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);
-+ numSlices = int((ymax + margin - _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();
- }
-@@ -930,53 +930,60 @@ bool KernCollider::initSlot(Segment *seg
- // 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);
-+ float x = (sx + (rtl > 0 ? bb.tr.x : bb.bl.x)) * rtl;
- // this isn't going to reduce _mingap so skip
-- if ((rtl > 0 && x < _xbound - _mingap - currSpace) || (rtl <= 0 && x > _xbound + _mingap + currSpace))
-+ if (x < rtl * (_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));
-+ int smin = max(1, int((bb.bl.y + (1 - _miny + sy)) / _sliceWidth + 1)) - 1;
-+ int smax = min((int)_edges.size() - 2, int((bb.tr.y + (1 - _miny + sy)) / _sliceWidth + 1)) + 1;
-+ if (smin > smax)
-+ return false;
- bool collides = false;
-+ float below = smin > 0 ? _edges[smin-1] * rtl : 1e38f;
-+ float here = _edges[smin] * rtl;
-+ float above = smin < (int)_edges.size() - 1 ? _edges[smin+1] * rtl : 1e38f;
-
- 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)
-+ if ( (x > here - _mingap - currSpace)
-+ || (x > below - _mingap - currSpace)
-+ || (x > above - _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);
-+ float m = get_edge(seg, slot, currShift, y, _sliceWidth, rtl > 0) * rtl + 2 * currSpace;
- // 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));
-+ t = min(min(here, below), above) - 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])
-+ if (m > rtl * _nearEdges[i])
- {
- _slotNear[i] = slot;
-- _nearEdges[i] = m;
-+ _nearEdges[i] = m * rtl;
- }
- #endif
- }
-+ below = here; here = above;
-+ above = i < (int)_edges.size() - 2 ? _edges[i+2] * rtl : 1e38f;
- }
- 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,
-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
-@@ -178,17 +178,18 @@ bool Face::runGraphite(Segment *seg, con
- if ((seg->dir() & 3) == 3 && aSilf->bidiPass() == 0xFF)
- seg->doMirror(aSilf->aMirror());
- bool res = aSilf->runGraphite(seg, 0, aSilf->positionPass(), true);
- if (res)
- {
- seg->associateChars(0, seg->charInfoCount());
- if (aSilf->flags() & 0x20)
- res &= seg->initCollisions();
-- res &= aSilf->runGraphite(seg, aSilf->positionPass(), aSilf->numPasses(), false);
-+ if (res)
-+ 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
-@@ -226,17 +227,17 @@ const Silf *Face::chooseSilf(uint32 scri
- return m_silfs;
- }
-
- uint16 Face::findPseudo(uint32 uid) const
- {
- return (m_numSilf) ? m_silfs[0].findPseudo(uid) : 0;
- }
-
--uint16 Face::getGlyphMetric(uint16 gid, uint8 metric) const
-+int32 Face::getGlyphMetric(uint16 gid, uint8 metric) const
- {
- switch (metrics(metric))
- {
- case kgmetAscent : return m_ascent;
- case kgmetDescent : return m_descent;
- default:
- if (gid >= glyphs().numGlyphs()) return 0;
- return glyphs().glyph(gid)->getMetric(metric);
-@@ -277,17 +278,17 @@ Face::Table::Table(const Face & face, co
- : _f(&face), _compressed(false)
- {
- size_t sz = 0;
- _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
-+ releaseBuffers(); // Make sure we release the table buffer even if the table failed it's checks
- return;
- }
-
- if (be::peek<uint32>(_p) >= version)
- decompress();
- }
-
- void Face::Table::releaseBuffers()
-@@ -324,17 +325,18 @@ Error Face::Table::decompress()
- 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))
-+ if (!e.test(!uncompressed_table || uncompressed_size < 4, E_OUTOFMEM))
-+ memset(uncompressed_table, 0, 4); // make sure version number is initialised
- // 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);
-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
-@@ -111,18 +111,20 @@ private:
- _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),
-+ _glyphs(_glyph_loader && *_glyph_loader && _glyph_loader->num_glyphs()
-+ ? grzeroalloc<const GlyphFace *>(_glyph_loader->num_glyphs()) : 0),
-+ _boxes(_glyph_loader && _glyph_loader->has_boxes() && _glyph_loader->num_glyphs()
-+ ? 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];
-@@ -139,17 +141,17 @@ GlyphCache::GlyphCache(const Face & face
- for (uint16 gid = 1; loaded && gid != _num_glyphs; ++gid)
- _glyphs[gid] = loaded = _glyph_loader->read_glyph(gid, glyphs[gid], &numsubs);
-
- if (!loaded)
- {
- _glyphs[0] = 0;
- delete [] glyphs;
- }
-- else if (numsubs > 0)
-+ else if (numsubs > 0 && _boxes)
- {
- 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]);
-@@ -204,16 +206,18 @@ GlyphCache::~GlyphCache()
- 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
- {
-+ if (glyphid >= numGlyphs())
-+ return _glyphs[0];
- 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, &numsubs);
- if (!p)
- {
-@@ -280,26 +284,27 @@ GlyphCache::Loader::Loader(const Face &
- _long_fmt = flags & 1;
- int tmpnumgattrs = (m_pGloc.size()
- - (p - m_pGloc)
- - sizeof(uint16)*(flags & 0x2 ? _num_attrs : 0))
- / (_long_fmt ? sizeof(uint32) : sizeof(uint16)) - 1;
-
- if (version >= 0x00020000 || tmpnumgattrs < 0 || tmpnumgattrs > 65535
- || _num_attrs == 0 || _num_attrs > 0x3000 // is this hard limit appropriate?
-- || _num_glyphs_graphics > tmpnumgattrs)
-+ || _num_glyphs_graphics > tmpnumgattrs
-+ || m_pGlat.size() < 4)
- {
- _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
-+ if (version >= 0x00040000 || (version >= 0x00030000 && m_pGlat.size() < 8)) // 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;
-@@ -381,22 +386,24 @@ const GlyphFace * GlyphCache::Loader::re
- }
- else
- {
- be::skip<uint16>(gloc, glyphid);
- glocs = be::read<uint16>(gloc);
- gloce = be::peek<uint16>(gloc);
- }
-
-- if (glocs >= m_pGlat.size() || gloce > m_pGlat.size())
-+ if (glocs >= m_pGlat.size() - 1 || gloce > m_pGlat.size())
- return 0;
-
- const uint32 glat_version = be::peek<uint32>(m_pGlat);
-- if (glat_version == 0x00030000)
-+ if (glat_version >= 0x00030000)
- {
-+ if (glocs >= gloce)
-+ return 0;
- 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;
- }
-@@ -449,29 +456,31 @@ GlyphBox * GlyphCache::Loader::read_box(
- }
- 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())
-+ if (gloce > m_pGlat.size() || glocs + 6 >= gloce)
- 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);
-+ if (glocs + 6 + num * 8 >= gloce)
-+ return 0;
-
- 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/GlyphFace.cpp b/gfx/graphite2/src/GlyphFace.cpp
---- a/gfx/graphite2/src/GlyphFace.cpp
-+++ b/gfx/graphite2/src/GlyphFace.cpp
-@@ -24,25 +24,25 @@ 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/GlyphFace.h"
-
-
- using namespace graphite2;
-
--uint16 GlyphFace::getMetric(uint8 metric) const
-+int32 GlyphFace::getMetric(uint8 metric) const
- {
- switch (metrics(metric))
- {
-- case kgmetLsb : return static_cast<uint16>(m_bbox.bl.x);
-- case kgmetRsb : return static_cast<uint16>(m_advance.x - m_bbox.tr.x);
-- case kgmetBbTop : return static_cast<uint16>(m_bbox.tr.y);
-- case kgmetBbBottom : return static_cast<uint16>(m_bbox.bl.y);
-- case kgmetBbLeft : return static_cast<uint16>(m_bbox.bl.x);
-- case kgmetBbRight : return static_cast<uint16>(m_bbox.tr.x);
-- case kgmetBbHeight : return static_cast<uint16>(m_bbox.tr.y - m_bbox.bl.y);
-- case kgmetBbWidth : return static_cast<uint16>(m_bbox.tr.x - m_bbox.bl.x);
-- case kgmetAdvWidth : return static_cast<uint16>(m_advance.x);
-- case kgmetAdvHeight : return static_cast<uint16>(m_advance.y);
-+ case kgmetLsb : return m_bbox.bl.x;
-+ case kgmetRsb : return m_advance.x - m_bbox.tr.x;
-+ case kgmetBbTop : return m_bbox.tr.y;
-+ case kgmetBbBottom : return m_bbox.bl.y;
-+ case kgmetBbLeft : return m_bbox.bl.x;
-+ case kgmetBbRight : return m_bbox.tr.x;
-+ case kgmetBbHeight : return m_bbox.tr.y - m_bbox.bl.y;
-+ case kgmetBbWidth : return m_bbox.tr.x - m_bbox.bl.x;
-+ case kgmetAdvWidth : return m_advance.x;
-+ case kgmetAdvHeight : return m_advance.y;
- default : return 0;
- }
- }
-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
-@@ -95,62 +95,63 @@ float Segment::justify(Slot *pSlot, cons
-
- end = pLast->nextSibling();
- pFirst = pFirst->nextSibling();
-
- int icount = 0;
- int numLevels = silf()->numJustLevels();
- if (!numLevels)
- {
-- for (s = pSlot; s != end; s = s->next())
-+ for (s = pSlot; s && s != end; s = s->nextSibling())
- {
- CharInfo *c = charinfo(s->before());
- if (isWhitespace(c->unicodeChar()))
- {
- s->setJustify(this, 0, 3, 1);
- s->setJustify(this, 0, 2, 1);
- s->setJustify(this, 0, 0, -1);
- ++icount;
- }
- }
- if (!icount)
- {
-- for (s = pSlot; s != end; s = s->nextSibling())
-+ for (s = pSlot; s && s != end; s = s->nextSibling())
- {
- s->setJustify(this, 0, 3, 1);
- s->setJustify(this, 0, 2, 1);
- s->setJustify(this, 0, 0, -1);
- }
- }
- ++numLevels;
- }
-
- Vector<JustifyTotal> stats(numLevels);
-- for (s = pFirst; s != end; s = s->nextSibling())
-+ for (s = pFirst; s && 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 < 0.0f) ? -1 : numLevels - 1; i >= 0; --i)
- {
- float diff;
- float error = 0.;
- float diffpw;
- int tWeight = stats[i].weight();
-+ if (tWeight == 0) continue;
-
- do {
- error = 0.;
- diff = width - currWidth;
- diffpw = diff / tWeight;
- tWeight = 0;
-- for (s = pFirst; s != end; s = s->nextSibling()) // don't include final glyph
-+ for (s = pFirst; s && s != end; s = s->nextSibling()) // don't include final glyph
- {
- int w = s->getJustify(this, i, 3);
- float pref = diffpw * w + error;
- int step = s->getJustify(this, i, 2);
- if (!step) step = 1; // handle lazy font developers
- if (pref > 0)
- {
- float max = uint16(s->getJustify(this, i, 0));
-diff --git a/gfx/graphite2/src/NameTable.cpp b/gfx/graphite2/src/NameTable.cpp
---- a/gfx/graphite2/src/NameTable.cpp
-+++ b/gfx/graphite2/src/NameTable.cpp
-@@ -42,25 +42,26 @@ NameTable::NameTable(const void* data, s
- memcpy(pdata, data, length);
- m_table = reinterpret_cast<const TtfUtil::Sfnt::FontNames*>(pdata);
-
- if ((length > sizeof(TtfUtil::Sfnt::FontNames)) &&
- (length > sizeof(TtfUtil::Sfnt::FontNames) +
- sizeof(TtfUtil::Sfnt::NameRecord) * ( be::swap<uint16>(m_table->count) - 1)))
- {
- uint16 offset = be::swap<uint16>(m_table->string_offset);
-- m_nameData = reinterpret_cast<const uint8*>(pdata) + offset;
-- setPlatformEncoding(platformId, encodingID);
-- m_nameDataLength = length - offset;
-+ if (offset < length)
-+ {
-+ m_nameData = reinterpret_cast<const uint8*>(pdata) + offset;
-+ setPlatformEncoding(platformId, encodingID);
-+ m_nameDataLength = length - offset;
-+ return;
-+ }
- }
-- else
-- {
-- free(const_cast<TtfUtil::Sfnt::FontNames*>(m_table));
-- m_table = NULL;
-- }
-+ free(const_cast<TtfUtil::Sfnt::FontNames*>(m_table));
-+ m_table = NULL;
- }
-
- uint16 NameTable::setPlatformEncoding(uint16 platformId, uint16 encodingID)
- {
- if (!m_nameData) return 0;
- uint16 i = 0;
- uint16 count = be::swap<uint16>(m_table->count);
- for (; i < count; i++)
-@@ -139,28 +140,36 @@ void* NameTable::getName(uint16& languag
- uint16 offset = be::swap<uint16>(nameRecord.offset);
- if(offset + utf16Length > m_nameDataLength)
- {
- languageId = 0;
- length = 0;
- return NULL;
- }
- utf16Length >>= 1; // in utf16 units
-- utf16::codeunit_t * utf16Name = gralloc<utf16::codeunit_t>(utf16Length);
-+ utf16::codeunit_t * utf16Name = gralloc<utf16::codeunit_t>(utf16Length + 1);
- if (!utf16Name)
- {
- languageId = 0;
- length = 0;
- return NULL;
- }
- const uint8* pName = m_nameData + offset;
- for (size_t i = 0; i < utf16Length; i++)
- {
- utf16Name[i] = be::read<uint16>(pName);
- }
-+ utf16Name[utf16Length] = 0;
-+ if (!utf16::validate(utf16Name, utf16Name + utf16Length))
-+ {
-+ free(utf16Name);
-+ languageId = 0;
-+ length = 0;
-+ return NULL;
-+ }
- switch (enc)
- {
- case gr_utf8:
- {
- utf8::codeunit_t* uniBuffer = gralloc<utf8::codeunit_t>(3 * utf16Length + 1);
- if (!uniBuffer)
- {
- free(utf16Name);
-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
-@@ -96,17 +96,17 @@ bool Pass::readPass(const byte * const p
- 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
- const byte flags = be::read<byte>(p);
- if (e.test((flags & 0x1f) &&
-- (pt < PASS_TYPE_POSITIONING || !m_silf->aCollision() || !face.glyphs().hasBoxes()),
-+ (pt < PASS_TYPE_POSITIONING || !m_silf->aCollision() || !face.glyphs().hasBoxes() || !(m_silf->flags() & 0x20)),
- 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
-@@ -226,17 +226,21 @@ bool Pass::readRules(const byte * rule_m
- // 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);
-+ int totalSlots = 0;
-+ const uint16 *tsort = sort_key;
-+ for (int i = 0; i < m_numRules; ++i)
-+ totalSlots += be::peek<uint16>(--tsort);
-+ const size_t prog_pool_sz = vm::Machine::Code::estimateCodeDataOut(ac_end - ac_data + rc_end - rc_data, 2 * m_numRules, totalSlots);
- 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; r >= m_rules; --n, --r, ac_end = ac_begin, rc_end = rc_begin)
- {
-@@ -249,17 +253,17 @@ bool Pass::readRules(const byte * rule_m
- 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
-- || vm::Machine::Code::estimateCodeDataOut(ac_end - ac_begin + rc_end - rc_begin) > size_t(prog_pool_end - prog_pool_free))
-+ || vm::Machine::Code::estimateCodeDataOut(ac_end - ac_begin + rc_end - rc_begin, 2, r->sort) > size_t(prog_pool_end - prog_pool_free))
- return false;
- 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))
-@@ -330,17 +334,17 @@ bool Pass::readStates(const byte * start
-
- // load state transition table.
- for (uint16 * t = m_transitions,
- * const t_end = t + m_numTransition*m_numColumns; t != t_end; ++t)
- {
- *t = be::read<uint16>(states);
- if (e.test(*t >= m_numStates, E_BADSTATE))
- {
-- face.error_context((face.error_context() & 0xFFFF00) + EC_ATRANS + (((t - m_transitions) / m_numColumns) << 24));
-+ face.error_context((face.error_context() & 0xFFFF00) + EC_ATRANS + (((t - m_transitions) / m_numColumns) << 8));
- return face.error(e);
- }
- }
-
- State * s = m_states,
- * const success_begin = m_states + m_numStates - m_numSuccess;
- const RuleEntry * rule_map_end = m_ruleMap + be::peek<uint16>(o_rule_map + m_numSuccess*sizeof(uint16));
- for (size_t n = m_numStates; n; --n, ++s)
-@@ -351,17 +355,18 @@ bool Pass::readStates(const byte * start
- if (e.test(begin >= rule_map_end || end > rule_map_end || begin > end, E_BADRULEMAPPING))
- {
- face.error_context((face.error_context() & 0xFFFF00) + EC_ARULEMAP + (n << 24));
- return face.error(e);
- }
- s->rules = begin;
- s->rules_end = (end - begin <= FiniteStateMachine::MAX_RULES)? end :
- begin + FiniteStateMachine::MAX_RULES;
-- qsort(begin, end - begin, sizeof(RuleEntry), &cmpRuleEntry);
-+ if (begin) // keep UBSan happy can't call qsort with null begin
-+ qsort(begin, end - begin, sizeof(RuleEntry), &cmpRuleEntry);
- }
-
- return true;
- }
-
- bool Pass::readRanges(const byte * ranges, size_t num_ranges, Error &e)
- {
- m_cols = gralloc<uint16>(m_numGlyphs);
-@@ -449,19 +454,19 @@ bool Pass::runFSM(FiniteStateMachine& fs
- if (fsm.slots.context() < m_minPreCtxt)
- return false;
-
- uint16 state = m_startStates[m_maxPreCtxt - fsm.slots.context()];
- uint8 free_slots = SlotMap::MAX_SLOTS;
- do
- {
- fsm.slots.pushSlot(slot);
-- if (--free_slots == 0
-- || slot->gid() >= m_numGlyphs
-+ if (slot->gid() >= m_numGlyphs
- || m_cols[slot->gid()] == 0xffffU
-+ || --free_slots == 0
- || state >= m_numTransition)
- return free_slots != 0;
-
- const uint16 * transitions = m_transitions + state*m_numColumns;
- state = transitions[m_cols[slot->gid()]];
- if (state >= m_successStart)
- fsm.rules.accumulate_rules(m_states[state]);
-
-@@ -627,37 +632,40 @@ bool Pass::testPassConstraint(Machine &
- }
-
-
- bool Pass::testConstraint(const Rule & r, Machine & m) const
- {
- const uint16 curr_context = m.slotMap().context();
- if (unsigned(r.sort - r.preContext) > m.slotMap().size() - curr_context
- || curr_context - r.preContext < 0) return false;
-+
-+ vm::slotref * map = m.slotMap().begin() + curr_context - r.preContext;
-+ if (map[r.sort - 1] == 0)
-+ return false;
-+
- if (!*r.constraint) return true;
- assert(r.constraint->constraint());
--
-- vm::slotref * map = m.slotMap().begin() + curr_context - r.preContext;
- for (int n = r.sort; n && map; --n, ++map)
- {
- if (!*map) continue;
- const int32 ret = r.constraint->run(m, map);
- if (!ret || m.status() != Machine::finished)
- return false;
- }
-
- return true;
- }
-
-
- 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 && (slot->isDeleted() || slot->isCopied()))
- {
- if (slot == aSlot)
- aSlot = slot->prev() ? slot->prev() : slot->next();
- segment.freeSlot(slot);
- }
- }
- }
-
-@@ -848,17 +856,16 @@ bool Pass::collisionShift(Segment *seg,
- }
- }
- }
- 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)
-@@ -871,17 +878,17 @@ bool Pass::collisionKern(Segment *seg, i
- 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);
-+ resolveKern(seg, s, start, 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)
-@@ -1010,17 +1017,17 @@ bool Pass::resolveCollisions(Segment *se
- 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 Pass::resolveKern(Segment *seg, Slot *slotFix, GR_MAYBE_UNUSED Slot *start, 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())
-@@ -1030,16 +1037,17 @@ float Pass::resolveKern(Segment *seg, Sl
-
- 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;
-+ KernCollider coll(dbgout);
-
- 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());
-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
-@@ -419,16 +419,19 @@ Position Segment::positionSlots(const Fo
- reverseSlots();
- temp = iStart;
- iStart = iEnd;
- iEnd = temp;
- }
- if (!iStart) iStart = m_first;
- if (!iEnd) iEnd = m_last;
-
-+ if (!iStart || !iEnd) // only true for empty segments
-+ return currpos;
-+
- 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, isRtl, isFinal);
- }
- }
-@@ -526,11 +529,14 @@ void Segment::doMirror(uint16 aMirror)
- }
-
- 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);
-+ if (p->index() < slotCount())
-+ ::new (collisionInfo(p)) SlotCollision(this, p);
-+ else
-+ return false;
- 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
-@@ -350,20 +350,20 @@ 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, m_dir);
-+ unsigned int maxSize = seg->slotCount() * MAX_SEG_GROWTH_FACTOR;
-+ SlotMap map(*seg, m_dir, maxSize);
- 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)
-@@ -419,13 +419,13 @@ bool Silf::runGraphite(Segment *seg, uin
-
- // test whether to reorder, prepare for positioning
- 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
-- || (seg->slotCount() && seg->slotCount() * MAX_SEG_GROWTH_FACTOR < initSize))
-+ || (seg->slotCount() && seg->slotCount() > maxSize))
- 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
-@@ -80,20 +80,20 @@ void Slot::set(const Slot & orig, int ch
-
- 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, bool rtl, bool isFinal)
-+Position Slot::finalise(const Segment *seg, const Font *font, Position & base, Rect & bbox, uint8 attrLevel, float & clusterMin, bool rtl, bool isFinal, int depth)
- {
- SlotCollision *coll = NULL;
-- if (attrLevel && m_attLevel > attrLevel) return Position(0, 0);
-+ if (depth > 100 || (attrLevel && m_attLevel > attrLevel)) return Position(0, 0);
- 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;
-@@ -128,23 +128,23 @@ Position Slot::finalise(const Segment *s
- 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, rtl, isFinal);
-+ Position tRes = m_child->finalise(seg, font, m_position, bbox, attrLevel, clusterMin, rtl, isFinal, depth + 1);
- 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, rtl, isFinal);
-+ Position tRes = m_sibling->finalise(seg, font, base, bbox, attrLevel, clusterMin, rtl, isFinal, depth + 1);
- if (tRes.x > res.x) res = tRes;
- }
-
- if (!m_parent && clusterMin < base.x)
- {
- Position adj = Position(m_position.x - clusterMin, 0.);
- res += adj;
- m_position += adj;
-@@ -160,35 +160,35 @@ int32 Slot::clusterMetric(const Segment
- return 0;
- Rect bbox = seg->theGlyphBBoxTemporary(glyph());
- float clusterMin = 0.;
- Position res = finalise(seg, NULL, base, bbox, attrLevel, clusterMin, rtl, false);
-
- switch (metrics(metric))
- {
- case kgmetLsb :
-- return static_cast<uint32>(bbox.bl.x);
-+ return bbox.bl.x;
- case kgmetRsb :
-- return static_cast<uint32>(res.x - bbox.tr.x);
-+ return res.x - bbox.tr.x;
- case kgmetBbTop :
-- return static_cast<uint32>(bbox.tr.y);
-+ return bbox.tr.y;
- case kgmetBbBottom :
-- return static_cast<uint32>(bbox.bl.y);
-+ return bbox.bl.y;
- case kgmetBbLeft :
-- return static_cast<uint32>(bbox.bl.x);
-+ return bbox.bl.x;
- case kgmetBbRight :
-- return static_cast<uint32>(bbox.tr.x);
-+ return bbox.tr.x;
- case kgmetBbWidth :
-- return static_cast<uint32>(bbox.tr.x - bbox.bl.x);
-+ return bbox.tr.x - bbox.bl.x;
- case kgmetBbHeight :
-- return static_cast<uint32>(bbox.tr.y - bbox.bl.y);
-+ return bbox.tr.y - bbox.bl.y;
- case kgmetAdvWidth :
-- return static_cast<uint32>(res.x);
-+ return res.x;
- case kgmetAdvHeight :
-- return static_cast<uint32>(res.y);
-+ return 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
-@@ -290,19 +290,32 @@ 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 || other == m_parent) break;
-- if (m_parent) m_parent->removeChild(this);
-- if (!other->isChildOf(this) && other->child(this))
-+ if (other == this || other == m_parent || other->isCopied()) break;
-+ if (m_parent) { m_parent->removeChild(this); attachTo(NULL); }
-+ Slot *pOther = other;
-+ int count = 0;
-+ bool foundOther = false;
-+ while (pOther)
-+ {
-+ ++count;
-+ if (pOther == this) foundOther = true;
-+ pOther = pOther->attachedTo();
-+ }
-+ for (pOther = m_child; pOther; pOther = pOther->m_child)
-+ ++count;
-+ for (pOther = m_sibling; pOther; pOther = pOther->m_sibling)
-+ ++count;
-+ if (count < 100 && !foundOther && other->child(this))
- {
- attachTo(other);
- if ((map.dir() != 0) ^ (idx > subindex))
- m_with = Position(advance(), 0);
- else // normal match to previous root
- m_attach = Position(other->advance(), 0);
- }
- }
-@@ -416,41 +429,34 @@ bool Slot::sibling(Slot *ap)
- m_sibling = ap;
- else
- return m_sibling->sibling(ap);
- return true;
- }
-
- bool Slot::removeChild(Slot *ap)
- {
-- if (this == ap || !m_child) return false;
-+ if (this == ap || !m_child || !ap) return false;
- else if (ap == m_child)
- {
- Slot *nSibling = m_child->nextSibling();
-- m_child->removeSibling(nSibling);
-+ m_child->nextSibling(NULL);
- m_child = nSibling;
- return true;
- }
-- else
-- return m_child->removeSibling(ap);
-- return true;
--}
--
--bool Slot::removeSibling(Slot *ap)
--{
-- if (this == ap || !m_sibling) return false;
-- else if (ap == m_sibling)
-+ for (Slot *p = m_child; p; p = p->m_sibling)
- {
-- m_sibling = m_sibling->nextSibling();
-- if (m_sibling) ap->removeSibling(m_sibling);
-- return true;
-+ if (p->m_sibling && p->m_sibling == ap)
-+ {
-+ p->m_sibling = p->m_sibling->m_sibling;
-+ ap->nextSibling(NULL);
-+ return true;
-+ }
- }
-- else
-- return m_sibling->removeSibling(ap);
-- return true;
-+ return false;
- }
-
- void Slot::setGlyph(Segment *seg, uint16 glyphid, const GlyphFace * theGlyph)
- {
- m_glyphid = glyphid;
- m_bidiCls = -1;
- if (!theGlyph)
- {
-@@ -475,21 +481,23 @@ void Slot::setGlyph(Segment *seg, uint16
- 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)
-+void Slot::floodShift(Position adj, int depth)
- {
-+ if (depth > 100)
-+ return;
- m_position += adj;
-- if (m_child) m_child->floodShift(adj);
-- if (m_sibling) m_sibling->floodShift(adj);
-+ if (m_child) m_child->floodShift(adj, depth + 1);
-+ if (m_sibling) m_sibling->floodShift(adj, depth + 1);
- }
-
- void SlotJustify::LoadSlot(const Slot *s, const Segment *seg)
- {
- for (int i = seg->silf()->numJustLevels() - 1; i >= 0; --i)
- {
- Justinfo *justs = seg->silf()->justAttrs() + i;
- int16 *v = values + i * NUMJUSTPARAMS;
-@@ -514,15 +522,14 @@ Slot * Slot::nextInCluster(const Slot *s
- 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);
-+ for (Slot *p = m_parent; p; p = p->m_parent)
-+ if (p == base)
-+ return true;
-+ return false;
- }
-+
-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
-@@ -891,25 +891,27 @@ const void * FindCmapSubtable(const void
- ----------------------------------------------------------------------------------------------*/
- bool CheckCmapSubtable4(const void * pCmapSubtable4, const void * pCmapEnd /*, unsigned int maxgid*/)
- {
- size_t table_len = (const byte *)pCmapEnd - (const byte *)pCmapSubtable4;
- if (!pCmapSubtable4) return false;
- const Sfnt::CmapSubTable * pTable = reinterpret_cast<const Sfnt::CmapSubTable *>(pCmapSubtable4);
- // 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;
-+ if (table_len < sizeof(*pTable) || be::swap(pTable->format) != 4) return false;
- const Sfnt::CmapSubTableFormat4 * pTable4 = reinterpret_cast<const Sfnt::CmapSubTableFormat4 *>(pCmapSubtable4);
-+ if (table_len < sizeof(*pTable4))
-+ return false;
- 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))
-+ if (!nRanges || 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);
- if (chEnd != 0xFFFF)
- return false;
- #if 0
- int lastend = -1;
- for (int i = 0; i < nRanges; ++i)
-@@ -999,17 +1001,17 @@ gid16 CmapSubtable4Lookup(const void * p
- uint16 idRangeOffset = be::peek<uint16>(pMid += nSeg);
-
- if (idRangeOffset == 0)
- return (uint16)(idDelta + nUnicodeId); // must use modulus 2^16
-
- // Look up value in glyphIdArray
- const ptrdiff_t offset = (nUnicodeId - chStart) + (idRangeOffset >> 1) +
- (pMid - reinterpret_cast<const uint16 *>(pTable));
-- if (offset * 2 >= be::swap<uint16>(pTable->length))
-+ if (offset * 2 + 1 >= be::swap<uint16>(pTable->length))
- return 0;
- gid16 nGlyphId = be::peek<uint16>(reinterpret_cast<const uint16 *>(pTable)+offset);
- // If this value is 0, return 0. Else add the idDelta
- return nGlyphId ? nGlyphId + idDelta : 0;
- }
-
- return 0;
- }
-@@ -1081,19 +1083,21 @@ unsigned int CmapSubtable4NextCodepoint(
- /*----------------------------------------------------------------------------------------------
- Check the Microsoft UCS-4 subtable for expected values.
- ----------------------------------------------------------------------------------------------*/
- bool CheckCmapSubtable12(const void *pCmapSubtable12, const void *pCmapEnd /*, unsigned int maxgid*/)
- {
- size_t table_len = (const byte *)pCmapEnd - (const byte *)pCmapSubtable12;
- if (!pCmapSubtable12) return false;
- const Sfnt::CmapSubTable * pTable = reinterpret_cast<const Sfnt::CmapSubTable *>(pCmapSubtable12);
-- if (be::swap(pTable->format) != 12)
-+ if (table_len < sizeof(*pTable) || be::swap(pTable->format) != 12)
- return false;
- const Sfnt::CmapSubTableFormat12 * pTable12 = reinterpret_cast<const Sfnt::CmapSubTableFormat12 *>(pCmapSubtable12);
-+ if (table_len < sizeof(*pTable12))
-+ return false;
- uint32 length = be::swap(pTable12->length);
- if (length > table_len)
- return false;
- if (length < sizeof(Sfnt::CmapSubTableFormat12))
- return false;
- uint32 num_groups = be::swap(pTable12->num_groups);
- if (num_groups > 0x10000000 || length != (sizeof(Sfnt::CmapSubTableFormat12) + (num_groups - 1) * sizeof(uint32) * 3))
- return false;
-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
-@@ -81,17 +81,17 @@ 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);
-+ static size_t estimateCodeDataOut(size_t num_bytecodes, int nRules, int nSlots);
-
- 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 &,
- enum passtype pt, byte * * const _out = 0);
- Code(const Machine::Code &) throw();
- ~Code() throw();
-
-@@ -107,19 +107,21 @@ public:
- 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)
-+size_t Machine::Code::estimateCodeDataOut(size_t n_bc, int nRules, int nSlots)
- {
-- return (n_bc + 1) * (sizeof(instr)+sizeof(byte));
-+ // max is: all codes are instructions + 1 for each rule + max tempcopies
-+ // allocate space for separate maximal code and data then merge them later
-+ return (n_bc + nRules + nSlots) * sizeof(instr) + n_bc * 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),
- _own(false)
- {
-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
-@@ -82,17 +82,17 @@ public:
- uint16 languageForLocale(const char * locale) const;
-
- // Features
- uint16 numFeatures() const;
- const FeatureRef * featureById(uint32 id) const;
- const FeatureRef * feature(uint16 index) const;
-
- // Glyph related
-- uint16 getGlyphMetric(uint16 gid, uint8 metric) const;
-+ int32 getGlyphMetric(uint16 gid, uint8 metric) const;
- uint16 findPseudo(uint32 uid) const;
-
- // Errors
- unsigned int error() const { return m_error; }
- bool error(Error e) { m_error = e.error(); return false; }
- unsigned int error_context() const { return m_error; }
- void error_context(unsigned int errcntxt) { m_errcntxt = errcntxt; }
-
-diff --git a/gfx/graphite2/src/inc/GlyphFace.h b/gfx/graphite2/src/inc/GlyphFace.h
---- a/gfx/graphite2/src/inc/GlyphFace.h
-+++ b/gfx/graphite2/src/inc/GlyphFace.h
-@@ -46,17 +46,17 @@ class GlyphFace
- public:
- GlyphFace();
- template<typename I>
- GlyphFace(const Rect & bbox, const Position & adv, I first, const I last);
-
- const Position & theAdvance() const;
- const Rect & theBBox() const { return m_bbox; }
- const sparse & attrs() const { return m_attrs; }
-- uint16 getMetric(uint8 metric) const;
-+ int32 getMetric(uint8 metric) const;
-
- CLASS_NEW_DELETE;
- private:
- Rect m_bbox; // bounding box metrics in design units
- Position m_advance; // Advance width and height in design units
- sparse m_attrs;
- };
-
-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
-@@ -179,17 +179,17 @@ inline SlotMap& Machine::slotMap() const
- return _map;
- }
-
- inline Machine::status_t Machine::status() const throw()
- {
- return _status;
- }
-
--inline void Machine::check_final_stack(const int32 * const sp)
-+inline void Machine::check_final_stack(const stack_t * const sp)
- {
- stack_t const * const base = _stack + STACK_GUARD,
- * const limit = base + STACK_MAX;
- if (sp < base) _status = stack_underflow; // This should be impossible now.
- else if (sp >= limit) _status = stack_overflow; // So should this.
- else if (sp != base) _status = stack_not_empty;
- }
-
-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
-@@ -76,17 +76,17 @@ private:
- void dumpRuleEventConsidered(const FiniteStateMachine & fsm, const RuleEntry & re) const;
- void dumpRuleEventOutput(const FiniteStateMachine & fsm, vm::Machine & m, const Rule & r, Slot * os) const;
- void adjustSlot(int delta, Slot * & slot_out, SlotMap &) const;
- 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 resolveKern(Segment *seg, Slot *slot, Slot *start, 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;
-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
-@@ -97,17 +97,17 @@ bool State::empty() const
- return rules_end == rules;
- }
-
-
- class SlotMap
- {
- public:
- enum {MAX_SLOTS=64};
-- SlotMap(Segment & seg, uint8 direction);
-+ SlotMap(Segment & seg, uint8 direction, int maxSize);
-
- Slot * * begin();
- Slot * * end();
- size_t size() const;
- unsigned short context() const;
- void reset(Slot &, unsigned short);
-
- Slot * const & operator[](int n) const;
-@@ -116,23 +116,25 @@ public:
- 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; }
-+ int decMax() { return --m_maxSize; }
-
- Segment & segment;
- private:
- Slot * m_slot_map[MAX_SLOTS+1];
- unsigned short m_size;
- unsigned short m_precontext;
- Slot * m_highwater;
-+ int m_maxSize;
- uint8 m_dir;
- bool m_highpassed;
- };
-
-
- class FiniteStateMachine
- {
- public:
-@@ -237,18 +239,19 @@ void FiniteStateMachine::Rules::accumula
- return;
- }
- }
- while (rre != rrend && out != lrend) { *out++ = *rre++; }
- m_end = out;
- }
-
- inline
--SlotMap::SlotMap(Segment & seg, uint8 direction)
--: segment(seg), m_size(0), m_precontext(0), m_highwater(0), m_dir(direction), m_highpassed(false)
-+SlotMap::SlotMap(Segment & seg, uint8 direction, int maxSize)
-+: segment(seg), m_size(0), m_precontext(0), m_highwater(0),
-+ m_maxSize(maxSize), 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/Segment.h b/gfx/graphite2/src/inc/Segment.h
---- a/gfx/graphite2/src/inc/Segment.h
-+++ b/gfx/graphite2/src/inc/Segment.h
-@@ -35,17 +35,17 @@ of the License or (at your option) any l
- #include "inc/FeatureVal.h"
- #include "inc/GlyphCache.h"
- #include "inc/GlyphFace.h"
- #include "inc/Slot.h"
- #include "inc/Position.h"
- #include "inc/List.h"
- #include "inc/Collider.h"
-
--#define MAX_SEG_GROWTH_FACTOR 256
-+#define MAX_SEG_GROWTH_FACTOR 64
-
- namespace graphite2 {
-
- typedef Vector<Features> FeatureList;
- typedef Vector<Slot *> SlotRope;
- typedef Vector<int16 *> AttributeRope;
- typedef Vector<SlotJustify *> JustifyRope;
-
-@@ -154,17 +154,17 @@ public:
- 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); }
-+ bool hasCollisionInfo() const { return (m_flags & SEG_HASCOLLISIONS) && m_collisions; }
- 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 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();
-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
-@@ -92,17 +92,17 @@ public:
- 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, bool rtl, bool isFinal);
-+ Position finalise(const Segment* seg, const Font* font, Position & base, Rect & bbox, uint8 attrLevel, float & clusterMin, bool rtl, bool isFinal, int depth = 0);
- 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; }
-@@ -123,20 +123,19 @@ public:
- 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, bool rtl);
- void positionShift(Position a) { m_position += a; }
-- void floodShift(Position adj);
-+ void floodShift(Position adj, int depth = 0);
- 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:
-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
-@@ -35,16 +35,17 @@ typedef uint32 uchar_t;
-
- template <int N>
- struct _utf_codec
- {
- typedef uchar_t codeunit_t;
-
- static void put(codeunit_t * cp, const uchar_t , int8 & len) throw();
- static uchar_t get(const codeunit_t * cp, int8 & len) throw();
-+ static bool validate(const codeunit_t * s, const codeunit_t * e) throw();
- };
-
-
- template <>
- struct _utf_codec<32>
- {
- private:
- static const uchar_t limit = 0x110000;
-@@ -58,16 +59,22 @@ public:
- }
-
- inline
- static uchar_t get(const codeunit_t * cp, int8 & l) throw()
- {
- if (cp[0] < limit) { l = 1; return cp[0]; }
- else { l = -1; return 0xFFFD; }
- }
-+
-+ inline
-+ static bool validate(codeunit_t * s, codeunit_t * e) throw()
-+ {
-+ return e > s;
-+ }
- };
-
-
- template <>
- struct _utf_codec<16>
- {
- private:
- static const int32 lead_offset = 0xD800 - (0x10000 >> 10);
-@@ -88,22 +95,31 @@ public:
- }
-
- inline
- static uchar_t get(const codeunit_t * cp, int8 & l) throw()
- {
- const uint32 uh = cp[0];
- l = 1;
-
-- if (0xD800 > uh || uh > 0xDFFF) { return uh; }
-+ if (uh < 0xD800|| uh > 0xDFFF) { return uh; }
- const uint32 ul = cp[1];
-- if (uh > 0xDBFF || 0xDC00 > ul || ul > 0xDFFF) { l = -1; return 0xFFFD; }
-+ if (uh > 0xDBFF || ul < 0xDC00 || ul > 0xDFFF) { l = -1; return 0xFFFD; }
- ++l;
- return (uh<<10) + ul + surrogate_offset;
- }
-+
-+ inline
-+ static bool validate(codeunit_t * s, codeunit_t * e) throw()
-+ {
-+ const ptrdiff_t n = e-s;
-+ if (n <= 0) return n == 0;
-+ const uint32 u = *(s+(n-1)); // Get the last codepoint
-+ return (u < 0xD800 || u > 0xDBFF);
-+ }
- };
-
-
- template <>
- struct _utf_codec<8>
- {
- private:
- static const int8 sz_lut[16];
-@@ -143,16 +159,34 @@ public:
-
- if (l != seq_sz || toolong)
- {
- l = -l;
- return 0xFFFD;
- }
- return u;
- }
-+
-+ inline
-+ static bool validate(codeunit_t * s, codeunit_t * e) throw()
-+ {
-+ const ptrdiff_t n = e-s;
-+ if (n <= 0) return n == 0;
-+ s += (n-1);
-+ if (*s < 0x80) return true;
-+ if (*s >= 0xC0) return false;
-+ if (n == 1) return true;
-+ if (*--s < 0x80) return true;
-+ if (*s >= 0xe0) return false;
-+ if (n == 2 || *s >= 0xC0) return true;
-+ if (*--s < 0x80) return true;
-+ if (*s >= 0xF0) return false;
-+ return true;
-+ }
-+
- };
-
-
- template <typename C>
- class _utf_iterator
- {
- typedef _utf_codec<sizeof(C)*8> codec;
-
-@@ -195,16 +229,21 @@ public:
-
- template <typename C>
- struct utf
- {
- typedef typename _utf_codec<sizeof(C)*8>::codeunit_t codeunit_t;
-
- typedef _utf_iterator<C> iterator;
- typedef _utf_iterator<const C> const_iterator;
-+
-+ inline
-+ static bool validate(codeunit_t * s, codeunit_t * e) throw() {
-+ return _utf_codec<sizeof(C)*8>::validate(s,e);
-+ }
- };
-
-
- typedef utf<uint32> utf32;
- typedef utf<uint16> utf16;
- typedef utf<uint8> utf8;
-
- } // namespace graphite2
-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
-@@ -113,13 +113,13 @@ static const opcode_t opcode_table[] =
- {{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"},
-+ {{do_(set_feat), NILOP}, 2, "SET_FEAT"}, // featidx slot
- // 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
-@@ -62,17 +62,18 @@ of the License or (at your option) any l
- // 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 binop(op) const uint32 a = pop(); *sp = uint32(*sp) op a
-+#define sbinop(op) const int32 a = pop(); *sp = int32(*sp) op a
- #define use_params(n) dp += n
-
- #define declare_params(n) const byte * param = dp; \
- use_params(n);
-
- #define push(n) { *++sp = n; }
- #define pop() (*sp--)
- #define slotat(x) (map[(x)])
-@@ -125,17 +126,17 @@ STARTOP(sub)
- ENDOP
-
- STARTOP(mul)
- binop(*);
- ENDOP
-
- STARTOP(div_)
- if (*sp == 0) DIE;
-- binop(/);
-+ sbinop(/);
- ENDOP
-
- STARTOP(min_)
- const int32 a = pop(), b = *sp;
- if (a < b) *sp = a;
- ENDOP
-
- STARTOP(max_)
-@@ -176,29 +177,29 @@ STARTOP(equal)
- binop(==);
- ENDOP
-
- STARTOP(not_eq_)
- binop(!=);
- ENDOP
-
- STARTOP(less)
-- binop(<);
-+ sbinop(<);
- ENDOP
-
- STARTOP(gtr)
-- binop(>);
-+ sbinop(>);
- ENDOP
-
- STARTOP(less_eq)
-- binop(<=);
-+ sbinop(<=);
- ENDOP
-
- STARTOP(gtr_eq)
-- binop(>=);
-+ sbinop(>=);
- ENDOP
-
- STARTOP(next)
- if (map - &smap[0] >= int(smap.size())) DIE
- if (is)
- {
- if (is == smap.highwater())
- smap.highpassed(true);
-@@ -237,17 +238,17 @@ 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)
-+ if (is && !is->isDeleted())
- {
- slotref ref = slotat(slot_ref);
- if (ref && ref != is)
- {
- int16 *tempUserAttrs = is->userAttrs();
- if (is->attachedTo() || is->firstChild()) DIE
- Slot *prev = is->prev();
- Slot *next = is->next();
-@@ -262,16 +263,17 @@ STARTOP(put_copy)
- is->attachedTo()->child(is);
- }
- is->markCopied(false);
- is->markDeleted(false);
- }
- ENDOP
-
- STARTOP(insert)
-+ if (smap.decMax() <= 0) DIE;
- Slot *newSlot = seg.newSlot();
- if (!newSlot) DIE;
- Slot *iss = is;
- while (iss && iss->isDeleted()) iss = iss->next();
- if (!iss)
- {
- if (seg.last())
- {
-@@ -550,31 +552,31 @@ 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), dir);
-+ seg.positionSlots(0, *smap.begin(), *(smap.end()-1), seg.currdir());
- 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), dir);
-+ seg.positionSlots(0, *smap.begin(), *(smap.end()-1), seg.currdir());
- 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);
-
generated by cgit v1.2.3 (git 2.25.4) at 2024-06-28 11:03:30 +0000