Add exact version of qcms used by Chrome for testing and comparison

third_party/qcms/README.chromium

+Name: Quick Color Management System
+Short Name: qcms
+URL: https://github.com/jrmuizel/qcms/tree/v4
+Version: v4
+Date: 2012-03-13
+License: MIT
+License File: src/COPYING
+Security Critical: yes
+
+Description:
+Contains support for applying an ICC color profile to an image.  The code is
+originally based on tinycms, re-written by Mozilla for better security and
+performance.  This copy is a source-drop from Mozilla on March 13, 2012.
+
+Local Modifications:
+Some files only have license headers in the master branch.
+ - Added the same license headers to the versions brought down from the 'v4'
+   branch src URL qcms/tree/v4
+The following changes have been made since qcms was imported:
+ - Add bgra output support.
+ - Use HAVE_POSIX_MEMALIGN instead of HAS_POSIX_MEMALIG
+   (https://bugzilla.mozilla.org/show_bug.cgi?id=692922)
+ - Applied upstream patch:
+   - https://bug752254.bugzilla.mozilla.org/attachment.cgi?id=626102
+ - Applied upstream patch for sanitizing gamma table:
+   - Expanded gamma clamp range to allow 1.0.
+ - Do not short-circuit bogus profile check for A2B0 or B2A0 unless v4 enabled.
+ - Only reference code from transform-sse1.c and transform-sse2.c when SSE is
+   enabled.
+ - Limit the use an x86-only attribute to 32-bit x86 builds.
+   - https://code.google.com/p/chromium/issues/detail?id=490016
+ - Fix integer truncation warning/errors on Win64 build.
+ - Apply upstream thread safety (fix) patch from
+   - https://bugzilla.mozilla.org/show_bug.cgi?id=853169
+ - Apply upstream fix for qcms_profile_from_memory from
+   - https://bugzilla.mozilla.org/show_bug.cgi?id=969226
+ - Apply upstream simplification of qcmstypes.h
+   - https://hg.mozilla.org/mozilla-central/rev/b5be94737a83
+ - Check for unused tag_len in read_nested_curveType()
+ - Apply qcms_transform_precacheLUT_float does not properly free dest buffer
+   - https://bugzilla.mozilla.org/show_bug.cgi?id=701348
+ - Add qcms_profile_match api
+   - https://code.google.com/p/chromium/issues/detail?id=401971
+ - Add qcms_profile_get_description api
+   - https://code.google.com/p/chromium/issues/detail?id=401971
+ - Convert MLUC profile description embedded nulls to '.'
+   - https://code.google.com/p/chromium/issues/detail?id=401971
+ - [APPLE port] Use en-localized profile description names
+   - https://code.google.com/p/chromium/issues/detail?id=401971
+ - [APPLE port] Use mmod data for profile descriptions
+   - https://code.google.com/p/chromium/issues/detail?id=401971
+ - Minor variable name change: description -> description_offset
+   - https://code.google.com/p/chromium/issues/detail?id=401971
+ - Avoid divisions creating sample points in the float cube LUT builder
+   - https://code.google.com/p/chromium/issues/detail?id=443863
+ - Add bgra (z,y,x) sampled transform lookup table api
+   - https://code.google.com/p/chromium/issues/detail?id=443863
+ - Apply upstream fix reject invalid sizes from
+   - https://bugzilla.mozilla.org/show_bug.cgi?id=1132468
+ - lut_inverse_interp16: remove odd whitespace formatting
+   - https://code.google.com/p/chromium/issues/detail?id=458024
+ - lut_inverse_interp16: better handle degenerate TRC curves
+   - https://code.google.com/p/chromium/issues/detail?id=458024
+ - Add vcgt tag reader and API to read its RGB gamma data
+   - https://code.google.com/p/chromium/issues/detail?id=471749
+ - Consolidate loop over channels and elements in VCGT parser
+   - https://code.google.com/p/chromium/issues/detail?id=471749
+ - Limit vcgt table to a maximum of 1024 entries
+   - https://code.google.com/p/chromium/issues/detail?id=471749
+ - Add float to half float conversion routine
+   - https://code.google.com/p/chromium/issues/detail?id=491784
+ - Use half float conversion tables (not functions)
+   - https://code.google.com/p/chromium/issues/detail?id=491784
+ - Add matrix transform flag and matrix extraction api
+   - https://code.google.com/p/chromium/issues/detail?id=491826
+ - Add tone reproduction curve (TRC) extraction api
+   - https://code.google.com/p/chromium/issues/detail?id=491826
+ - lut_inverse_interp16: interpolate degenerate zeros in TRC curves
+   - https://code.google.com/p/chromium/issues/detail?id=458024
+ - Make half float code self-contained: add halffloat.h
+   - https://code.google.com/p/chromium/issues/detail?id=491784
+ - lut_inverse_interp16: fix black level inversion error
+   - https://code.google.com/p/chromium/issues/detail?id=504681
+ - Apply upstream fix of uninitialized value
+   - https://github.com/jrmuizel/qcms/commit/0edb697
+ - Apply Keep the output of the TRC between 0 and 1
+   - https://bugzilla.mozilla.org/show_bug.cgi?id=764181
+ - Drop SSE1 code as Chromium mandates SSE2 as a minimum requirement
+   - https://code.google.com/p/chromium/issues/detail?id=506856
+ - Apply Fix potential leaks in qcms_transform_create
+   - https://bugzilla.mozilla.org/show_bug.cgi?id=1168480
+ - Apply fix for crash in qcms_transform_data_rgb_out_lut_sse1
+   - https://bugzilla.mozilla.org/show_bug.cgi?id=1163740
+ - Add SSE2 code for qcms_transform_data_rgba_out_lut_sse2
+   - https://code.google.com/p/chromium/issues/detail?id=506607
+ - Turbo charge SSE2 qcms_transform_data_rgba_out_lut_sse2
+   - https://code.google.com/p/chromium/issues/detail?id=506607
+ - Check matrix transforms have the same PCS 
+   - https://code.google.com/p/chromium/issues/detail?id=510682
+ - Apply Don't reject valid profiles with no CLUT offset
+   - https://bugzilla.mozilla.org/show_bug.cgi?id=1176551
+ - Runtime detect qcms_transform_data_tetra_clut_rgba_sse2 use
+   - https://code.google.com/p/chromium/issues/detail?id=506607
+ - LUT8/16 profiles with an empty CLUT are invalid
+   - https://code.google.com/p/chromium/issues/detail?id=487284
+ - Caching transform prelude to save computation in V4 profiles
+   - https://code.google.com/p/chromium/issues/detail?id=506607
+ - Use the caching transform prelude for non-SSE code in transform.c
+   - https://code.google.com/p/chromium/issues/detail?id=506607
+ - Expand QCMS tests. Add Munsell test for transform accuracy
+   - https://code.google.com/p/chromium/issues/detail?id=532910
+ - Compute RMS error from color error dE in the Munsell test
+   - https://code.google.com/p/chromium/issues/detail?id=532910
+ - Store color profile version and add a version read API
+   - https://code.google.com/p/chromium/issues/detail?id=532258
+ - Add support for VCGT tag formula gamma
+   - https://code.google.com/p/chromium/issues/detail?id=551568
+ - Minimize transform RMS in qcms_transform_data_rgb(a)_out_lut
+   - https://code.google.com/p/chromium/issues/detail?id=532910
+ - Allow negative XYZ for display profiles on the APPLE port
+   - https://code.google.com/p/chromium/issues/detail?id=562951
+ - Add a color profile white point transform api
+   - https://code.google.com/p/chromium/issues/detail?id=564355
+ - Compute the pole and zero values needed by lut_inverse_interp16 once
+   - https://code.google.com/p/chromium/issues/detail?id=505793
+ - Store the profile media white point during iccread.c
+   - https://code.google.com/p/chromium/issues/detail?id=565222
+ - Add an API to check for profile media white point
+   - https://code.google.com/p/chromium/issues/detail?id=565222
+ - Add a qcms_profile_get_white_point() api
+   - https://code.google.com/p/chromium/issues/detail?id=565222
+ - Set the media white point of the sRGB profile
+   - https://code.google.com/p/chromium/issues/detail?id=565222
+ - Don't build QCMS on Android and iOS
+   - https://code.google.com/p/chromium/issues/detail?id=577155
+ - Fix para curve tag interval paramater use
+   - https://code.google.com/p/chromium/issues/detail?id=580920
+ - Verify internal sRGB profile tristimulus match the standard sRGB profile
+   - https://code.google.com/p/chromium/issues/detail?id=580917
+ - Expose unsigned short version of TRC curve
+   - https://code.google.com/p/chromium/issues/detail?id=495196
+ - Add qcms_profile_ntsc_relative_gamut_size api
+   - https://code.google.com/p/chromium/issues/detail?id=582870
+ - Fix build issue of qcms_tests for MIPS Linux
+   - https://code.google.com/p/chromium/issues/detail?id=590227
+ - Update primaries used to build internal sRGB profile
+   - https://code.google.com/p/chromium/issues/detail?id=580917
+ - Update internal sRGB profile test report output
+   - https://code.google.com/p/chromium/issues/detail?id=580917
+ - Add more internal sRGB profile tests
+   - https://code.google.com/p/chromium/issues/detail?id=580917
+ - Fix build_output_lut to return correct data for parametric curves
+   - https://bugs.chromium.org/p/chromium/issues/detail?id=600338
+ - Make build_output_lut output 4096 points for parametric curves
+   - https://bugs.chromium.org/p/chromium/issues/detail?id=600338
+ - Use a static table in build_output_lut to invert para curves
+   - https://bugs.chromium.org/p/chromium/issues/detail?id=600338
+ - Make qcms_test_output_trc handle normal gamma curves
+   - https://bugs.chromium.org/p/chromium/issues/detail?id=600338
+
+For the Chromium changes, since the import, in a patch format run:
+  git diff b8456f38 src