0ab0f1c120
This simplifies shared library builds on Windows (no need to
conditionally change declspec to dllimport).
Once this lands, we can make the same change (plus update
internal references):
https://skia-review.googlesource.com/c/skcms/+/124982
Change-Id: I0d4fa9031258f77d370e6e6e018afaf543c29d85
Reviewed-on: https://skia-review.googlesource.com/124983
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Mike Klein <mtklein@chromium.org>
445 lines
16 KiB
C++
445 lines
16 KiB
C++
/*
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* Copyright 2016 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "Resources.h"
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#include "SkCodec.h"
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#include "SkColorSpace.h"
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#include "SkColorSpacePriv.h"
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#include "SkColorSpace_XYZ.h"
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#include "SkData.h"
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#include "SkImageInfo.h"
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#include "SkMatrix44.h"
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#include "SkRefCnt.h"
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#include "SkStream.h"
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#include "SkTypes.h"
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#include "Test.h"
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#include "png.h"
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#if defined(SK_USE_SKCMS)
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#include "skcms.h"
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#endif
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#include <memory>
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#include <utility>
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static bool almost_equal(float a, float b) {
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return SkTAbs(a - b) < 0.001f;
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}
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static void test_space(skiatest::Reporter* r, SkColorSpace* space,
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const float red[], const float green[], const float blue[],
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const SkGammaNamed expectedGamma) {
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REPORTER_ASSERT(r, nullptr != space);
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REPORTER_ASSERT(r, expectedGamma == space->gammaNamed());
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const SkMatrix44& mat = *space->toXYZD50();
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const float src[] = {
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1, 0, 0, 1,
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0, 1, 0, 1,
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0, 0, 1, 1,
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};
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const float* ref[3] = { red, green, blue };
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float dst[4];
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for (int i = 0; i < 3; ++i) {
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mat.mapScalars(&src[i*4], dst);
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REPORTER_ASSERT(r, almost_equal(ref[i][0], dst[0]));
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REPORTER_ASSERT(r, almost_equal(ref[i][1], dst[1]));
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REPORTER_ASSERT(r, almost_equal(ref[i][2], dst[2]));
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}
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}
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static void test_path(skiatest::Reporter* r, const char* path,
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const float red[], const float green[], const float blue[],
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const SkGammaNamed expectedGamma) {
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std::unique_ptr<SkStream> stream(GetResourceAsStream(path));
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REPORTER_ASSERT(r, nullptr != stream);
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if (!stream) {
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return;
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}
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std::unique_ptr<SkCodec> codec(SkCodec::MakeFromStream(std::move(stream)));
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REPORTER_ASSERT(r, nullptr != codec);
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if (!codec) {
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return;
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}
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SkColorSpace* colorSpace = codec->getInfo().colorSpace();
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test_space(r, colorSpace, red, green, blue, expectedGamma);
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}
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static constexpr float g_sRGB_XYZ[]{
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0.4358f, 0.3853f, 0.1430f, // Rx, Gx, Bx
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0.2224f, 0.7170f, 0.0606f, // Ry, Gy, Gz
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0.0139f, 0.0971f, 0.7139f, // Rz, Gz, Bz
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};
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static constexpr float g_sRGB_R[]{ 0.4358f, 0.2224f, 0.0139f };
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static constexpr float g_sRGB_G[]{ 0.3853f, 0.7170f, 0.0971f };
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static constexpr float g_sRGB_B[]{ 0.1430f, 0.0606f, 0.7139f };
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DEF_TEST(ColorSpace_sRGB, r) {
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test_space(r, SkColorSpace::MakeSRGB().get(),
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g_sRGB_R, g_sRGB_G, g_sRGB_B, kSRGB_SkGammaNamed);
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}
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DEF_TEST(ColorSpaceParseICCProfiles, r) {
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#if (PNG_LIBPNG_VER_MAJOR > 1) || (PNG_LIBPNG_VER_MAJOR == 1 && PNG_LIBPNG_VER_MINOR >= 6)
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test_path(r, "images/color_wheel_with_profile.png", g_sRGB_R, g_sRGB_G, g_sRGB_B,
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kSRGB_SkGammaNamed);
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#endif
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const float red[] = { 0.385117f, 0.716904f, 0.0970612f };
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const float green[] = { 0.143051f, 0.0606079f, 0.713913f };
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const float blue[] = { 0.436035f, 0.222488f, 0.013916f };
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test_path(r, "images/icc-v2-gbr.jpg", red, green, blue, k2Dot2Curve_SkGammaNamed);
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test_path(r, "images/webp-color-profile-crash.webp",
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red, green, blue, kNonStandard_SkGammaNamed);
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test_path(r, "images/webp-color-profile-lossless.webp",
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red, green, blue, kNonStandard_SkGammaNamed);
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test_path(r, "images/webp-color-profile-lossy.webp",
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red, green, blue, kNonStandard_SkGammaNamed);
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test_path(r, "images/webp-color-profile-lossy-alpha.webp",
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red, green, blue, kNonStandard_SkGammaNamed);
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}
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DEF_TEST(ColorSpaceSRGBCompare, r) {
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// Create an sRGB color space by name
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sk_sp<SkColorSpace> namedColorSpace = SkColorSpace::MakeSRGB();
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// Create an sRGB color space by value
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SkMatrix44 srgbToxyzD50(SkMatrix44::kUninitialized_Constructor);
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srgbToxyzD50.set3x3RowMajorf(g_sRGB_XYZ);
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sk_sp<SkColorSpace> rgbColorSpace =
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SkColorSpace::MakeRGB(SkColorSpace::kSRGB_RenderTargetGamma, srgbToxyzD50);
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REPORTER_ASSERT(r, rgbColorSpace == namedColorSpace);
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SkColorSpaceTransferFn srgbFn;
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srgbFn.fA = (1.0f / 1.055f);
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srgbFn.fB = (0.055f / 1.055f);
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srgbFn.fC = (1.0f / 12.92f);
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srgbFn.fD = 0.04045f;
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srgbFn.fE = 0.0f;
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srgbFn.fF = 0.0f;
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srgbFn.fG = 2.4f;
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sk_sp<SkColorSpace> rgbColorSpace2 = SkColorSpace::MakeRGB(srgbFn, srgbToxyzD50);
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REPORTER_ASSERT(r, rgbColorSpace2 == namedColorSpace);
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// Change a single value from the sRGB matrix
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srgbToxyzD50.set(2, 2, 0.5f);
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sk_sp<SkColorSpace> strangeColorSpace =
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SkColorSpace::MakeRGB(SkColorSpace::kSRGB_RenderTargetGamma, srgbToxyzD50);
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REPORTER_ASSERT(r, strangeColorSpace != namedColorSpace);
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}
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DEF_TEST(ColorSpaceSRGBLinearCompare, r) {
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// Create the linear sRGB color space by name
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sk_sp<SkColorSpace> namedColorSpace = SkColorSpace::MakeSRGBLinear();
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// Create the linear sRGB color space via the sRGB color space's makeLinearGamma()
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auto srgb = SkColorSpace::MakeSRGB();
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auto srgbXYZ = static_cast<SkColorSpace_XYZ*>(srgb.get());
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sk_sp<SkColorSpace> viaSrgbColorSpace = srgbXYZ->makeLinearGamma();
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REPORTER_ASSERT(r, namedColorSpace == viaSrgbColorSpace);
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// Create a linear sRGB color space by value
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SkMatrix44 srgbToxyzD50(SkMatrix44::kUninitialized_Constructor);
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srgbToxyzD50.set3x3RowMajorf(g_sRGB_XYZ);
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sk_sp<SkColorSpace> rgbColorSpace =
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SkColorSpace::MakeRGB(SkColorSpace::kLinear_RenderTargetGamma, srgbToxyzD50);
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REPORTER_ASSERT(r, rgbColorSpace == namedColorSpace);
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SkColorSpaceTransferFn linearExpFn;
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linearExpFn.fA = 1.0f;
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linearExpFn.fB = 0.0f;
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linearExpFn.fC = 0.0f;
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linearExpFn.fD = 0.0f;
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linearExpFn.fE = 0.0f;
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linearExpFn.fF = 0.0f;
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linearExpFn.fG = 1.0f;
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sk_sp<SkColorSpace> rgbColorSpace2 = SkColorSpace::MakeRGB(linearExpFn, srgbToxyzD50);
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REPORTER_ASSERT(r, rgbColorSpace2 == namedColorSpace);
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SkColorSpaceTransferFn linearFn;
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linearFn.fA = 0.0f;
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linearFn.fB = 0.0f;
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linearFn.fC = 1.0f;
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linearFn.fD = 1.0f;
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linearFn.fE = 0.0f;
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linearFn.fF = 0.0f;
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linearFn.fG = 0.0f;
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sk_sp<SkColorSpace> rgbColorSpace3 = SkColorSpace::MakeRGB(linearFn, srgbToxyzD50);
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REPORTER_ASSERT(r, rgbColorSpace3 == namedColorSpace);
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// Change a single value from the sRGB matrix
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srgbToxyzD50.set(2, 2, 0.5f);
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sk_sp<SkColorSpace> strangeColorSpace =
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SkColorSpace::MakeRGB(SkColorSpace::kLinear_RenderTargetGamma, srgbToxyzD50);
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REPORTER_ASSERT(r, strangeColorSpace != namedColorSpace);
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}
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static void test_serialize(skiatest::Reporter* r, SkColorSpace* space, bool isNamed) {
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sk_sp<SkData> data1 = space->serialize();
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size_t bytes = space->writeToMemory(nullptr);
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sk_sp<SkData> data2 = SkData::MakeUninitialized(bytes);
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space->writeToMemory(data2->writable_data());
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sk_sp<SkColorSpace> newSpace1 = SkColorSpace::Deserialize(data1->data(), data1->size());
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sk_sp<SkColorSpace> newSpace2 = SkColorSpace::Deserialize(data2->data(), data2->size());
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if (isNamed) {
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REPORTER_ASSERT(r, space == newSpace1.get());
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REPORTER_ASSERT(r, space == newSpace2.get());
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} else {
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REPORTER_ASSERT(r, SkColorSpace::Equals(space, newSpace1.get()));
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REPORTER_ASSERT(r, SkColorSpace::Equals(space, newSpace2.get()));
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}
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}
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DEF_TEST(ColorSpace_Serialize, r) {
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test_serialize(r, SkColorSpace::MakeSRGB().get(), true);
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test_serialize(r, SkColorSpace::MakeSRGBLinear().get(), true);
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sk_sp<SkData> monitorData = GetResourceAsData("icc_profiles/HP_ZR30w.icc");
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test_serialize(r, SkColorSpace::MakeICC(monitorData->data(), monitorData->size()).get(), false);
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monitorData = GetResourceAsData("icc_profiles/HP_Z32x.icc");
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test_serialize(r, SkColorSpace::MakeICC(monitorData->data(), monitorData->size()).get(), false);
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monitorData = GetResourceAsData("icc_profiles/upperLeft.icc");
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test_serialize(r, SkColorSpace::MakeICC(monitorData->data(), monitorData->size()).get(), false);
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monitorData = GetResourceAsData("icc_profiles/upperRight.icc");
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test_serialize(r, SkColorSpace::MakeICC(monitorData->data(), monitorData->size()).get(), false);
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SkColorSpaceTransferFn fn;
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fn.fA = 1.0f;
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fn.fB = 0.0f;
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fn.fC = 1.0f;
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fn.fD = 0.5f;
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fn.fE = 0.0f;
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fn.fF = 0.0f;
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fn.fG = 1.0f;
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SkMatrix44 toXYZ(SkMatrix44::kIdentity_Constructor);
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test_serialize(r, SkColorSpace::MakeRGB(fn, toXYZ).get(), false);
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}
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DEF_TEST(ColorSpace_Equals, r) {
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sk_sp<SkColorSpace> srgb = SkColorSpace::MakeSRGB();
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sk_sp<SkData> data = GetResourceAsData("icc_profiles/HP_ZR30w.icc");
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sk_sp<SkColorSpace> z30 = SkColorSpace::MakeICC(data->data(), data->size());
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data = GetResourceAsData("icc_profiles/HP_Z32x.icc");
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sk_sp<SkColorSpace> z32 = SkColorSpace::MakeICC(data->data(), data->size());
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data = GetResourceAsData("icc_profiles/upperLeft.icc");
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sk_sp<SkColorSpace> upperLeft = SkColorSpace::MakeICC(data->data(), data->size());
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data = GetResourceAsData("icc_profiles/upperRight.icc");
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sk_sp<SkColorSpace> upperRight = SkColorSpace::MakeICC(data->data(), data->size());
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SkColorSpaceTransferFn fn;
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fn.fA = 1.0f;
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fn.fB = 0.0f;
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fn.fC = 1.0f;
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fn.fD = 0.5f;
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fn.fE = 0.0f;
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fn.fF = 0.0f;
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fn.fG = 1.0f;
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SkMatrix44 toXYZ(SkMatrix44::kIdentity_Constructor);
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sk_sp<SkColorSpace> rgb4 = SkColorSpace::MakeRGB(fn, toXYZ);
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REPORTER_ASSERT(r, SkColorSpace::Equals(nullptr, nullptr));
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REPORTER_ASSERT(r, SkColorSpace::Equals(srgb.get(), srgb.get()));
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REPORTER_ASSERT(r, SkColorSpace::Equals(z30.get(), z30.get()));
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REPORTER_ASSERT(r, SkColorSpace::Equals(z32.get(), z32.get()));
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REPORTER_ASSERT(r, SkColorSpace::Equals(upperLeft.get(), upperLeft.get()));
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REPORTER_ASSERT(r, SkColorSpace::Equals(upperRight.get(), upperRight.get()));
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REPORTER_ASSERT(r, SkColorSpace::Equals(rgb4.get(), rgb4.get()));
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REPORTER_ASSERT(r, !SkColorSpace::Equals(nullptr, srgb.get()));
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REPORTER_ASSERT(r, !SkColorSpace::Equals(srgb.get(), nullptr));
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REPORTER_ASSERT(r, !SkColorSpace::Equals(z30.get(), srgb.get()));
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REPORTER_ASSERT(r, !SkColorSpace::Equals(z32.get(), z30.get()));
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REPORTER_ASSERT(r, !SkColorSpace::Equals(upperLeft.get(), srgb.get()));
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REPORTER_ASSERT(r, !SkColorSpace::Equals(upperLeft.get(), upperRight.get()));
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REPORTER_ASSERT(r, !SkColorSpace::Equals(z30.get(), upperRight.get()));
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REPORTER_ASSERT(r, !SkColorSpace::Equals(z30.get(), rgb4.get()));
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REPORTER_ASSERT(r, !SkColorSpace::Equals(srgb.get(), rgb4.get()));
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}
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static inline bool matrix_almost_equal(const SkMatrix44& a, const SkMatrix44& b) {
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return almost_equal(a.get(0, 0), b.get(0, 0)) &&
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almost_equal(a.get(0, 1), b.get(0, 1)) &&
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almost_equal(a.get(0, 2), b.get(0, 2)) &&
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almost_equal(a.get(0, 3), b.get(0, 3)) &&
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almost_equal(a.get(1, 0), b.get(1, 0)) &&
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almost_equal(a.get(1, 1), b.get(1, 1)) &&
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almost_equal(a.get(1, 2), b.get(1, 2)) &&
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almost_equal(a.get(1, 3), b.get(1, 3)) &&
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almost_equal(a.get(2, 0), b.get(2, 0)) &&
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almost_equal(a.get(2, 1), b.get(2, 1)) &&
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almost_equal(a.get(2, 2), b.get(2, 2)) &&
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almost_equal(a.get(2, 3), b.get(2, 3)) &&
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almost_equal(a.get(3, 0), b.get(3, 0)) &&
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almost_equal(a.get(3, 1), b.get(3, 1)) &&
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almost_equal(a.get(3, 2), b.get(3, 2)) &&
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almost_equal(a.get(3, 3), b.get(3, 3));
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}
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static inline void check_primaries(skiatest::Reporter* r, const SkColorSpacePrimaries& primaries,
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const SkMatrix44& reference) {
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SkMatrix44 toXYZ(SkMatrix44::kUninitialized_Constructor);
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bool result = primaries.toXYZD50(&toXYZ);
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REPORTER_ASSERT(r, result);
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REPORTER_ASSERT(r, matrix_almost_equal(toXYZ, reference));
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}
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DEF_TEST(ColorSpace_Primaries, r) {
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// sRGB primaries (D65)
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SkColorSpacePrimaries srgb;
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srgb.fRX = 0.64f;
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srgb.fRY = 0.33f;
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srgb.fGX = 0.30f;
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srgb.fGY = 0.60f;
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srgb.fBX = 0.15f;
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srgb.fBY = 0.06f;
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srgb.fWX = 0.3127f;
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srgb.fWY = 0.3290f;
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SkMatrix44 srgbToXYZ(SkMatrix44::kUninitialized_Constructor);
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bool result = srgb.toXYZD50(&srgbToXYZ);
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REPORTER_ASSERT(r, result);
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sk_sp<SkColorSpace> space = SkColorSpace::MakeRGB(SkColorSpace::kSRGB_RenderTargetGamma,
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srgbToXYZ);
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REPORTER_ASSERT(r, SkColorSpace::MakeSRGB() == space);
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// ProPhoto (D50)
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SkColorSpacePrimaries proPhoto;
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proPhoto.fRX = 0.7347f;
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proPhoto.fRY = 0.2653f;
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proPhoto.fGX = 0.1596f;
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proPhoto.fGY = 0.8404f;
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proPhoto.fBX = 0.0366f;
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proPhoto.fBY = 0.0001f;
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proPhoto.fWX = 0.34567f;
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proPhoto.fWY = 0.35850f;
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SkMatrix44 proToXYZ(SkMatrix44::kUninitialized_Constructor);
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proToXYZ.set3x3(0.7976749f, 0.2880402f, 0.0000000f,
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0.1351917f, 0.7118741f, 0.0000000f,
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0.0313534f, 0.0000857f, 0.8252100f);
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check_primaries(r, proPhoto, proToXYZ);
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// NTSC (C)
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SkColorSpacePrimaries ntsc;
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ntsc.fRX = 0.67f;
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ntsc.fRY = 0.33f;
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ntsc.fGX = 0.21f;
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ntsc.fGY = 0.71f;
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ntsc.fBX = 0.14f;
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ntsc.fBY = 0.08f;
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ntsc.fWX = 0.31006f;
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ntsc.fWY = 0.31616f;
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SkMatrix44 ntscToXYZ(SkMatrix44::kUninitialized_Constructor);
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ntscToXYZ.set3x3(0.6343706f, 0.3109496f, -0.0011817f,
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0.1852204f, 0.5915984f, 0.0555518f,
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0.1446290f, 0.0974520f, 0.7708399f);
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check_primaries(r, ntsc, ntscToXYZ);
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// DCI P3 (D65)
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SkColorSpacePrimaries p3;
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p3.fRX = 0.680f;
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p3.fRY = 0.320f;
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p3.fGX = 0.265f;
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p3.fGY = 0.690f;
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p3.fBX = 0.150f;
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p3.fBY = 0.060f;
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p3.fWX = 0.3127f;
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p3.fWY = 0.3290f;
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space = SkColorSpace::MakeRGB(SkColorSpace::kSRGB_RenderTargetGamma,
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SkColorSpace::kDCIP3_D65_Gamut);
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SkMatrix44 reference(SkMatrix44::kUninitialized_Constructor);
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SkAssertResult(space->toXYZD50(&reference));
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check_primaries(r, p3, reference);
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// Rec 2020 (D65)
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SkColorSpacePrimaries rec2020;
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rec2020.fRX = 0.708f;
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rec2020.fRY = 0.292f;
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rec2020.fGX = 0.170f;
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rec2020.fGY = 0.797f;
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rec2020.fBX = 0.131f;
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rec2020.fBY = 0.046f;
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rec2020.fWX = 0.3127f;
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rec2020.fWY = 0.3290f;
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space = SkColorSpace::MakeRGB(SkColorSpace::kSRGB_RenderTargetGamma,
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SkColorSpace::kRec2020_Gamut);
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SkAssertResult(space->toXYZD50(&reference));
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check_primaries(r, rec2020, reference);
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}
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DEF_TEST(ColorSpace_InvalidICC, r) {
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// This color space has a matrix that is not D50.
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sk_sp<SkData> data = GetResourceAsData("icc_profiles/SM2333SW.icc");
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if (!data) {
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return;
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}
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sk_sp<SkColorSpace> cs = SkColorSpace::MakeICC(data->data(), data->size());
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REPORTER_ASSERT(r, !cs);
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|
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// The color space has a color lut with only one entry in each dimension.
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data = GetResourceAsData("icc_profiles/invalid_color_lut.icc");
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if (!data) {
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|
return;
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|
}
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cs = SkColorSpace::MakeICC(data->data(), data->size());
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REPORTER_ASSERT(r, !cs);
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|
}
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|
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|
DEF_TEST(ColorSpace_MatrixHash, r) {
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sk_sp<SkColorSpace> srgb = SkColorSpace::MakeSRGB();
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|
|
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SkColorSpaceTransferFn fn;
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fn.fA = 1.0f;
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|
fn.fB = 0.0f;
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fn.fC = 0.0f;
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|
fn.fD = 0.0f;
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|
fn.fE = 0.0f;
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|
fn.fF = 0.0f;
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|
fn.fG = 3.0f;
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|
|
|
SkMatrix44 srgbMat(SkMatrix44::kUninitialized_Constructor);
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|
srgbMat.set3x3RowMajorf(gSRGB_toXYZD50);
|
|
sk_sp<SkColorSpace> strange = SkColorSpace::MakeRGB(fn, srgbMat);
|
|
|
|
REPORTER_ASSERT(r, *srgb->toXYZD50() == *strange->toXYZD50());
|
|
REPORTER_ASSERT(r, srgb->toXYZD50Hash() == strange->toXYZD50Hash());
|
|
}
|
|
|
|
DEF_TEST(ColorSpace_IsSRGB, r) {
|
|
sk_sp<SkColorSpace> srgb0 = SkColorSpace::MakeSRGB();
|
|
|
|
SkColorSpaceTransferFn fn;
|
|
fn.fA = 1.0f;
|
|
fn.fB = 0.0f;
|
|
fn.fC = 0.0f;
|
|
fn.fD = 0.0f;
|
|
fn.fE = 0.0f;
|
|
fn.fF = 0.0f;
|
|
fn.fG = 2.2f;
|
|
sk_sp<SkColorSpace> twoDotTwo = SkColorSpace::MakeRGB(fn, SkColorSpace::kSRGB_Gamut);
|
|
|
|
REPORTER_ASSERT(r, srgb0->isSRGB());
|
|
REPORTER_ASSERT(r, !twoDotTwo->isSRGB());
|
|
}
|
|
|
|
#if defined(SK_USE_SKCMS)
|
|
DEF_TEST(ColorSpace_skcms_IsSRGB, r) {
|
|
sk_sp<SkColorSpace> srgb = SkColorSpace::Make(skcms_sRGB_profile());
|
|
REPORTER_ASSERT(r, srgb->isSRGB());
|
|
}
|
|
#endif
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