e4387382c2
Sometimes it's helpful to think about subsampling separately from how the channels are spread across planes. Bug: skia:10632 Change-Id: Ib03f71195f9706ef6def418b1f2125c29e0cf738 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/334102 Commit-Queue: Brian Salomon <bsalomon@google.com> Reviewed-by: Jim Van Verth <jvanverth@google.com> Reviewed-by: Robert Phillips <robertphillips@google.com>
126 lines
4.5 KiB
C++
126 lines
4.5 KiB
C++
/*
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* Copyright 2014 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 "include/core/SkCanvas.h"
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#include "include/core/SkData.h"
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#include "include/core/SkGraphics.h"
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#include "include/core/SkImageGenerator.h"
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#include "include/core/SkYUVAIndex.h"
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#include "include/private/SkImageInfoPriv.h"
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#include "tests/Test.h"
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#if defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_IOS)
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#include "include/ports/SkImageGeneratorCG.h"
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#elif defined(SK_BUILD_FOR_WIN)
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#include "include/ports/SkImageGeneratorWIC.h"
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#endif
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static bool gMyFactoryWasCalled;
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static std::unique_ptr<SkImageGenerator> my_factory(sk_sp<SkData>) {
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gMyFactoryWasCalled = true;
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return nullptr;
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}
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static void test_imagegenerator_factory(skiatest::Reporter* reporter) {
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// just need a non-empty data to test things
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sk_sp<SkData> data(SkData::MakeWithCString("test_imagegenerator_factory"));
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gMyFactoryWasCalled = false;
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REPORTER_ASSERT(reporter, !gMyFactoryWasCalled);
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std::unique_ptr<SkImageGenerator> gen = SkImageGenerator::MakeFromEncoded(data);
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REPORTER_ASSERT(reporter, nullptr == gen);
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REPORTER_ASSERT(reporter, !gMyFactoryWasCalled);
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// Test is racy, in that it hopes no other thread is changing this global...
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auto prev = SkGraphics::SetImageGeneratorFromEncodedDataFactory(my_factory);
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gen = SkImageGenerator::MakeFromEncoded(data);
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REPORTER_ASSERT(reporter, nullptr == gen);
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REPORTER_ASSERT(reporter, gMyFactoryWasCalled);
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// This just verifies that the signatures match.
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#if defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_IOS)
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SkGraphics::SetImageGeneratorFromEncodedDataFactory(SkImageGeneratorCG::MakeFromEncodedCG);
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#elif defined(SK_BUILD_FOR_WIN)
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SkGraphics::SetImageGeneratorFromEncodedDataFactory(SkImageGeneratorWIC::MakeFromEncodedWIC);
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#endif
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SkGraphics::SetImageGeneratorFromEncodedDataFactory(prev);
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}
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class MyImageGenerator : public SkImageGenerator {
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public:
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MyImageGenerator() : SkImageGenerator(SkImageInfo::MakeN32Premul(0, 0)) {}
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};
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DEF_TEST(ImageGenerator, reporter) {
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MyImageGenerator ig;
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SkYUVAPixmapInfo yuvaPixmapInfo;
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// Check that the YUV decoding API does not cause any crashes
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ig.queryYUVAInfo(SkYUVAPixmapInfo::SupportedDataTypes::All(), &yuvaPixmapInfo);
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SkYUVAInfo yuvaInfo({250, 250},
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SkYUVAInfo::PlaneConfig::kY_UV,
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SkYUVAInfo::Subsampling::k420,
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kJPEG_Full_SkYUVColorSpace);
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yuvaPixmapInfo = SkYUVAPixmapInfo(yuvaInfo,
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SkYUVAPixmapInfo::DataType::kUnorm8,
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/*rowBytes[]*/ nullptr);
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SkYUVAPixmaps yuvaPixmaps = SkYUVAPixmaps::Allocate(yuvaPixmapInfo);
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ig.getYUVAPlanes(yuvaPixmaps);
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// Suppressed due to https://code.google.com/p/skia/issues/detail?id=4339
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if (false) {
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test_imagegenerator_factory(reporter);
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}
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}
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#include "include/core/SkPictureRecorder.h"
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#include "src/core/SkAutoMalloc.h"
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static sk_sp<SkPicture> make_picture() {
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SkPictureRecorder recorder;
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recorder.beginRecording(100, 100)->drawColor(SK_ColorRED);
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return recorder.finishRecordingAsPicture();
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}
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DEF_TEST(PictureImageGenerator, reporter) {
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const struct {
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SkColorType fColorType;
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SkAlphaType fAlphaType;
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} recs[] = {
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{ kRGBA_8888_SkColorType, kPremul_SkAlphaType },
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{ kBGRA_8888_SkColorType, kPremul_SkAlphaType },
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{ kRGBA_F16_SkColorType, kPremul_SkAlphaType },
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{ kRGBA_F32_SkColorType, kPremul_SkAlphaType },
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{ kRGBA_1010102_SkColorType, kPremul_SkAlphaType },
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{ kRGBA_8888_SkColorType, kUnpremul_SkAlphaType },
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{ kBGRA_8888_SkColorType, kUnpremul_SkAlphaType },
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{ kRGBA_F16_SkColorType, kUnpremul_SkAlphaType },
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{ kRGBA_F32_SkColorType, kUnpremul_SkAlphaType },
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{ kRGBA_1010102_SkColorType, kUnpremul_SkAlphaType },
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};
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auto colorspace = SkColorSpace::MakeSRGB();
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auto picture = make_picture();
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auto gen = SkImageGenerator::MakeFromPicture({100, 100}, picture, nullptr, nullptr,
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SkImage::BitDepth::kU8, colorspace);
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// worst case for all requests
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SkAutoMalloc storage(100 * 100 * SkColorTypeBytesPerPixel(kRGBA_F32_SkColorType));
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for (const auto& rec : recs) {
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SkImageInfo info = SkImageInfo::Make(100, 100, rec.fColorType, rec.fAlphaType, colorspace);
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REPORTER_ASSERT(reporter, gen->getPixels(info, storage.get(), info.minRowBytes()));
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}
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}
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