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

third_party/qcms/BUILD.gn

+# Copyright 2014 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+config("qcms_config") {
+  include_dirs = [ "src" ]
+}
+
+# Do not build QCMS on Android or iOS. (See http://crbug.com/577155)
+disable_qcms = is_android || is_ios
+
+source_set("qcms") {
+  if (disable_qcms) {
+    sources = [
+      "src/empty.c",
+    ]
+  } else {
+    sources = [
+      "src/chain.c",
+      "src/chain.h",
+      "src/iccread.c",
+      "src/matrix.c",
+      "src/matrix.h",
+      "src/qcms.h",
+      "src/qcms_util.c",
+      "src/qcmsint.h",
+      "src/qcmstypes.h",
+      "src/transform.c",
+      "src/transform_util.c",
+      "src/transform_util.h",
+    ]
+
+    if (current_cpu == "x86" || current_cpu == "x64") {
+      defines = [ "SSE2_ENABLE" ]
+      sources += [ "src/transform-sse2.c" ]
+    }
+  }
+
+  configs -= [ "//build/config/compiler:chromium_code" ]
+  configs += [ "//build/config/compiler:no_chromium_code" ]
+  public_configs = [ ":qcms_config" ]
+
+  if (is_win) {
+    cflags = [
+      "/wd4018",  # Signed/unsigned mismatch in comparison.
+      "/wd4056",  # Overflow in floating-point constant arithmetic (INFINITY).
+      "/wd4756",  # Overflow in constant arithmetic (INFINITY).
+    ]
+  }
+}
+
+if (!disable_qcms) {
+  executable("qcms_tests") {
+    if (current_cpu == "x86" || current_cpu == "x64") {
+      defines = [ "SSE2_ENABLE" ]
+    }
+    sources = [
+      "src/tests/qcms_test_internal_srgb.c",
+      "src/tests/qcms_test_main.c",
+      "src/tests/qcms_test_munsell.c",
+      "src/tests/qcms_test_ntsc_gamut.c",
+      "src/tests/qcms_test_output_trc.c",
+      "src/tests/qcms_test_tetra_clut_rgba.c",
+      "src/tests/qcms_test_util.c",
+    ]
+
+    deps = [
+      "//build/config/sanitizers:deps",
+      "//build/win:default_exe_manifest",
+      "//third_party/qcms",
+    ]
+
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [ "//build/config/compiler:no_chromium_code" ]
+    public_configs = [ ":qcms_config" ]
+  }
+}