c213f0df22
This originally was intended to be used for serialization, but we've chosen another approach. Includes a revert of: https://codereview.chromium.org/2012133003/ BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2193223002 Review-Url: https://codereview.chromium.org/2193223002
262 lines
12 KiB
C++
262 lines
12 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 "SkColorSpace_Base.h"
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#include "Test.h"
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#include "png.h"
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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 SkColorSpace::GammaNamed expectedGamma) {
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REPORTER_ASSERT(r, expectedGamma == space->gammaNamed());
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SkMatrix44 mat = space->xyz();
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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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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(red[i], dst[0]));
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REPORTER_ASSERT(r, almost_equal(green[i], dst[1]));
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REPORTER_ASSERT(r, almost_equal(blue[i], dst[2]));
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}
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}
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const float g_sRGB_XYZ[] = { 0.4358f, 0.2224f, 0.0139f, // R
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0.3853f, 0.7170f, 0.0971f, // G
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0.1430f, 0.0606f, 0.7139f }; // B
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DEF_TEST(ColorSpace_sRGB, r) {
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test_space(r, SkColorSpace::NewNamed(SkColorSpace::kSRGB_Named).get(),
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g_sRGB_XYZ, &g_sRGB_XYZ[3], &g_sRGB_XYZ[6], SkColorSpace::kSRGB_GammaNamed);
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}
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static SkStreamAsset* resource(const char path[]) {
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SkString fullPath = GetResourcePath(path);
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return SkStream::NewFromFile(fullPath.c_str());
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}
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DEF_TEST(ColorSpaceParsePngICCProfile, r) {
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SkAutoTDelete<SkStream> stream(resource("color_wheel_with_profile.png"));
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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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SkAutoTDelete<SkCodec> codec(SkCodec::NewFromStream(stream.release()));
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REPORTER_ASSERT(r, nullptr != codec);
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#if (PNG_LIBPNG_VER_MAJOR > 1) || (PNG_LIBPNG_VER_MAJOR == 1 && PNG_LIBPNG_VER_MINOR >= 6)
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SkColorSpace* colorSpace = codec->getInfo().colorSpace();
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REPORTER_ASSERT(r, nullptr != colorSpace);
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test_space(r, colorSpace, &g_sRGB_XYZ[0], &g_sRGB_XYZ[3], &g_sRGB_XYZ[6],
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SkColorSpace::kSRGB_GammaNamed);
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#endif
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}
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DEF_TEST(ColorSpaceParseJpegICCProfile, r) {
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SkAutoTDelete<SkStream> stream(resource("icc-v2-gbr.jpg"));
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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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SkAutoTDelete<SkCodec> codec(SkCodec::NewFromStream(stream.release()));
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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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REPORTER_ASSERT(r, nullptr != colorSpace);
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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_space(r, colorSpace, red, green, blue, SkColorSpace::k2Dot2Curve_GammaNamed);
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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::NewNamed(SkColorSpace::kSRGB_Named);
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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 = SkColorSpace::NewRGB(SkColorSpace::kSRGB_GammaNamed,
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srgbToxyzD50);
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REPORTER_ASSERT(r, rgbColorSpace == 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 = SkColorSpace::NewRGB(SkColorSpace::kSRGB_GammaNamed,
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srgbToxyzD50);
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REPORTER_ASSERT(r, strangeColorSpace != namedColorSpace);
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}
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class ColorSpaceTest {
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public:
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static sk_sp<SkData> WriteToICC(SkColorSpace* space) {
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return as_CSB(space)->writeToICC();
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}
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};
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DEF_TEST(ColorSpaceWriteICC, r) {
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// Test writing a new ICC profile
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sk_sp<SkColorSpace> namedColorSpace = SkColorSpace::NewNamed(SkColorSpace::kSRGB_Named);
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sk_sp<SkData> namedData = ColorSpaceTest::WriteToICC(namedColorSpace.get());
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sk_sp<SkColorSpace> iccColorSpace = SkColorSpace::NewICC(namedData->data(), namedData->size());
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test_space(r, iccColorSpace.get(), g_sRGB_XYZ, &g_sRGB_XYZ[3], &g_sRGB_XYZ[6],
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SkColorSpace::k2Dot2Curve_GammaNamed);
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// FIXME (msarett): Test disabled. sRGB profiles are written approximately as 2.2f curves.
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// REPORTER_ASSERT(r, iccColorSpace == namedColorSpace);
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// Test saving the original ICC data
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sk_sp<SkData> monitorData = SkData::MakeFromFileName(
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GetResourcePath("icc_profiles/HP_ZR30w.icc").c_str());
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REPORTER_ASSERT(r, monitorData);
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if (!monitorData) {
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return;
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}
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sk_sp<SkColorSpace> monitorSpace = SkColorSpace::NewICC(monitorData->data(),
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monitorData->size());
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sk_sp<SkData> newMonitorData = ColorSpaceTest::WriteToICC(monitorSpace.get());
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sk_sp<SkColorSpace> newMonitorSpace = SkColorSpace::NewICC(newMonitorData->data(),
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newMonitorData->size());
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REPORTER_ASSERT(r, monitorSpace->xyz() == newMonitorSpace->xyz());
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REPORTER_ASSERT(r, monitorSpace->gammaNamed() == newMonitorSpace->gammaNamed());
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}
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DEF_TEST(ColorSpace_Named, r) {
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const struct {
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SkColorSpace::Named fNamed;
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bool fExpectedToSucceed;
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bool fIsSRGB;
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} recs[] {
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{ SkColorSpace::kUnknown_Named, false, false },
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{ SkColorSpace::kSRGB_Named, true, true },
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{ SkColorSpace::kAdobeRGB_Named, true, false },
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};
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for (auto rec : recs) {
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auto cs = SkColorSpace::NewNamed(rec.fNamed);
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REPORTER_ASSERT(r, !cs == !rec.fExpectedToSucceed);
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if (cs) {
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if (rec.fIsSRGB) {
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REPORTER_ASSERT(r, SkColorSpace::kSRGB_GammaNamed == cs->gammaNamed());
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} else {
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REPORTER_ASSERT(r, SkColorSpace::k2Dot2Curve_GammaNamed == cs->gammaNamed());
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}
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}
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}
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SkImageInfo info = SkImageInfo::MakeS32(10, 10, kPremul_SkAlphaType);
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REPORTER_ASSERT(r, info.gammaCloseToSRGB());
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}
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static void matrix_equals(skiatest::Reporter* r, SkColorSpace* space1, SkColorSpace* space2) {
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REPORTER_ASSERT(r, space1->xyz().getFloat(0, 0) == space2->xyz().getFloat(0, 0));
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REPORTER_ASSERT(r, space1->xyz().getFloat(0, 1) == space2->xyz().getFloat(0, 1));
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REPORTER_ASSERT(r, space1->xyz().getFloat(0, 2) == space2->xyz().getFloat(0, 2));
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REPORTER_ASSERT(r, space1->xyz().getFloat(0, 3) == space2->xyz().getFloat(0, 3));
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REPORTER_ASSERT(r, space1->xyz().getFloat(1, 0) == space2->xyz().getFloat(1, 0));
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REPORTER_ASSERT(r, space1->xyz().getFloat(1, 1) == space2->xyz().getFloat(1, 1));
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REPORTER_ASSERT(r, space1->xyz().getFloat(1, 2) == space2->xyz().getFloat(1, 2));
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REPORTER_ASSERT(r, space1->xyz().getFloat(1, 3) == space2->xyz().getFloat(1, 3));
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REPORTER_ASSERT(r, space1->xyz().getFloat(2, 0) == space2->xyz().getFloat(2, 0));
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REPORTER_ASSERT(r, space1->xyz().getFloat(2, 1) == space2->xyz().getFloat(2, 1));
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REPORTER_ASSERT(r, space1->xyz().getFloat(2, 2) == space2->xyz().getFloat(2, 2));
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REPORTER_ASSERT(r, space1->xyz().getFloat(2, 3) == space2->xyz().getFloat(2, 3));
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REPORTER_ASSERT(r, space1->xyz().getFloat(3, 0) == space2->xyz().getFloat(3, 0));
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REPORTER_ASSERT(r, space1->xyz().getFloat(3, 1) == space2->xyz().getFloat(3, 1));
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REPORTER_ASSERT(r, space1->xyz().getFloat(3, 2) == space2->xyz().getFloat(3, 2));
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REPORTER_ASSERT(r, space1->xyz().getFloat(3, 3) == space2->xyz().getFloat(3, 3));
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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, space->gammaNamed() == newSpace1->gammaNamed());
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REPORTER_ASSERT(r, space->gammaNamed() == newSpace2->gammaNamed());
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matrix_equals(r, space, newSpace1.get());
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matrix_equals(r, 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::NewNamed(SkColorSpace::kSRGB_Named).get(), true);
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test_serialize(r, SkColorSpace::NewNamed(SkColorSpace::kAdobeRGB_Named).get(), true);
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sk_sp<SkData> monitorData = SkData::MakeFromFileName(
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GetResourcePath("icc_profiles/HP_ZR30w.icc").c_str());
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test_serialize(r, SkColorSpace::NewICC(monitorData->data(), monitorData->size()).get(), false);
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monitorData = SkData::MakeFromFileName( GetResourcePath("icc_profiles/HP_Z32x.icc").c_str());
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test_serialize(r, SkColorSpace::NewICC(monitorData->data(), monitorData->size()).get(), false);
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monitorData = SkData::MakeFromFileName(GetResourcePath("icc_profiles/upperLeft.icc").c_str());
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test_serialize(r, SkColorSpace::NewICC(monitorData->data(), monitorData->size()).get(), false);
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monitorData = SkData::MakeFromFileName(GetResourcePath("icc_profiles/upperRight.icc").c_str());
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test_serialize(r, SkColorSpace::NewICC(monitorData->data(), monitorData->size()).get(), false);
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}
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DEF_TEST(ColorSpace_Equals, r) {
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sk_sp<SkColorSpace> srgb = SkColorSpace::NewNamed(SkColorSpace::kSRGB_Named);
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sk_sp<SkColorSpace> adobe = SkColorSpace::NewNamed(SkColorSpace::kAdobeRGB_Named);
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sk_sp<SkData> data = SkData::MakeFromFileName(
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GetResourcePath("icc_profiles/HP_ZR30w.icc").c_str());
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sk_sp<SkColorSpace> z30 = SkColorSpace::NewICC(data->data(), data->size());
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data = SkData::MakeFromFileName( GetResourcePath("icc_profiles/HP_Z32x.icc").c_str());
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sk_sp<SkColorSpace> z32 = SkColorSpace::NewICC(data->data(), data->size());
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data = SkData::MakeFromFileName(GetResourcePath("icc_profiles/upperLeft.icc").c_str());
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sk_sp<SkColorSpace> upperLeft = SkColorSpace::NewICC(data->data(), data->size());
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data = SkData::MakeFromFileName(GetResourcePath("icc_profiles/upperRight.icc").c_str());
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sk_sp<SkColorSpace> upperRight = SkColorSpace::NewICC(data->data(), data->size());
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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(adobe.get(), adobe.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(nullptr, srgb.get()));
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REPORTER_ASSERT(r, !SkColorSpace::Equals(srgb.get(), nullptr));
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REPORTER_ASSERT(r, !SkColorSpace::Equals(adobe.get(), srgb.get()));
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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(upperRight.get(), adobe.get()));
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}
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