diff options
Diffstat (limited to 'gnu')
| -rw-r--r-- | gnu/packages/graphics.scm | 4 | ||||
| -rw-r--r-- | gnu/packages/patches/ilmbase-fix-tests.patch | 149 |
2 files changed, 152 insertions, 1 deletions
diff --git a/gnu/packages/graphics.scm b/gnu/packages/graphics.scm index 560febe958..3fdf07d361 100644 --- a/gnu/packages/graphics.scm +++ b/gnu/packages/graphics.scm @@ -1,6 +1,7 @@ ;;; GNU Guix --- Functional package management for GNU ;;; Copyright © 2015 Ludovic Courtès <ludo@gnu.org> ;;; Copyright © 2015 Tomáš Čech <sleep_walker@gnu.org> +;;; Copyright © 2016 Leo Famulari <leo@famulari.name> ;;; ;;; This file is part of GNU Guix. ;;; @@ -89,7 +90,8 @@ many more.") version ".tar.gz")) (sha256 (base32 - "1izddjwbh1grs8080vmaix72z469qy29wrvkphgmqmcm0sv1by7c")))) + "1izddjwbh1grs8080vmaix72z469qy29wrvkphgmqmcm0sv1by7c")) + (patches (map search-patch '("ilmbase-fix-tests.patch"))))) (build-system gnu-build-system) (home-page "http://www.openexr.com/") (synopsis "Utility C++ libraries for threads, maths, and exceptions") diff --git a/gnu/packages/patches/ilmbase-fix-tests.patch b/gnu/packages/patches/ilmbase-fix-tests.patch new file mode 100644 index 0000000000..fcaa37d201 --- /dev/null +++ b/gnu/packages/patches/ilmbase-fix-tests.patch @@ -0,0 +1,149 @@ +Fix FTBFS on i686-linux due to rounding issue (see references). + +Fixes Guix bug #22049 (see below). + +Copied from Debian. + +Source: +https://sources.debian.net/src/ilmbase/2.2.0-11/debian/patches/testBoxAlgo.patch/ +https://sources.debian.net/src/ilmbase/2.2.0-11/debian/patches/testBox.patch/ + +References: +https://lists.nongnu.org/archive/html/openexr-devel/2015-12/msg00001.html +https://debbugs.gnu.org/cgi/bugreport.cgi?bug=22049 +https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=815712 +https://anonscm.debian.org/cgit/pkg-phototools/ilmbase.git/commit/?id=ab28bb45cdad8adc32e345b777ab8e692b1d9a9c + +--- + +Subject: testBoxAlgo: allow fuzzy match of b12 == b2 +From: Steven Chamberlain <steven@pyro.eu.org> +Date: Wed, 24 Feb 2016 01:04:11 +0000 + +Also fix a pre-existing typo. + +Index: ilmbase/ImathTest/testBoxAlgo.cpp +=================================================================== +--- ilmbase.orig/ImathTest/testBoxAlgo.cpp ++++ ilmbase/ImathTest/testBoxAlgo.cpp +@@ -886,10 +886,11 @@ boxMatrixTransform () + + assert (approximatelyEqual (b2.min, b4.min, e)); + assert (approximatelyEqual (b2.max, b4.max, e)); +- assert (approximatelyEqual (b3.max, b4.max, e)); ++ assert (approximatelyEqual (b3.min, b4.min, e)); + assert (approximatelyEqual (b3.max, b4.max, e)); + +- assert (b21 == b2); ++ assert (approximatelyEqual (b2.min, b21.min, e)); ++ assert (approximatelyEqual (b2.max, b21.max, e)); + assert (b31 == b3); + + M[0][3] = 1; + +--- + +Subject: testBox: allow fuzzy comparison of floats, doubles +From: Steven Chamberlain <steven@pyro.eu.org> +Date: Wed, 24 Feb 2016 01:10:11 +0000 + +Allow for inexact values, as long as the error is smaller than the +epsilon of the data type. + +On 32-bit x86, allow even greater discrepency at double +precision, due to possible double-rounding. See +https://lists.nongnu.org/archive/html/openexr-devel/2015-12/msg00001.html + +Index: ilmbase/ImathTest/testBox.cpp +=================================================================== +--- ilmbase.orig/ImathTest/testBox.cpp ++++ ilmbase/ImathTest/testBox.cpp +@@ -47,6 +47,58 @@ using namespace IMATH_INTERNAL_NAMESPACE + + namespace { + ++template <class T> ++bool ++approximatelyEqual (const T &p1, const T &p2) ++{ ++ /* int and short should be exact */ ++ return (p1 == p2); ++} ++ ++bool ++approximatelyEqual (const Vec2<float> &p1, const Vec2<float> &p2) ++{ ++ float e = limits<float>::epsilon(); ++ float m = 0; ++ ++ for (int i = 0; i < 2; ++i) ++ { ++ m = max (m, abs (p1[i])); ++ m = max (m, abs (p2[i])); ++ } ++ ++ for (int i = 0; i < 2; ++i) ++ if (!equalWithAbsError (p1[i], p2[i], m * e)) ++ return false; ++ ++ return true; ++} ++ ++bool ++approximatelyEqual (const Vec2<double> &p1, const Vec2<double> &p2) ++{ ++#if defined(__i386__) || defined(_M_IX86) ++ /* double-rounding on 32-bit x86 may cause larger error: ++ use epsilon of float rather than double */ ++ double e = limits<float>::epsilon(); ++#else ++ double e = limits<double>::epsilon(); ++#endif ++ double m = 0; ++ ++ for (int i = 0; i < 2; ++i) ++ { ++ m = max (m, abs (p1[i])); ++ m = max (m, abs (p2[i])); ++ } ++ ++ for (int i = 0; i < 2; ++i) ++ if (!equalWithAbsError (p1[i], p2[i], m * e)) ++ return false; ++ ++ return true; ++} ++ + // + // Test case generation utility - create a vector of IMATH_INTERNAL_NAMESPACE::Vec{2,3,4} + // with all permutations of integers 1..T::dimensions(). +@@ -250,7 +302,8 @@ testExtendByPoint(const char *type) + + IMATH_INTERNAL_NAMESPACE::Box<T> b; + b.extendBy(p); +- assert(b.min == p && b.max == p); ++ assert (approximatelyEqual (b.min, p)); ++ assert (approximatelyEqual (b.max, p)); + } + + // +@@ -283,7 +336,8 @@ testExtendByPoint(const char *type) + + b.extendBy(p); + +- assert(b.min == min && b.max == max); ++ assert (approximatelyEqual (b.min, min)); ++ assert (approximatelyEqual (b.max, max)); + } + } + } +@@ -358,7 +412,8 @@ testExtendByBox(const char *type) + } + b.extendBy(IMATH_INTERNAL_NAMESPACE::Box<T>(p0, p1)); + +- assert(b.min == min && b.max == max); ++ assert (approximatelyEqual (b.min, min)); ++ assert (approximatelyEqual (b.max, max)); + } + } + } |