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// Copyright 2019 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.
#include <stdint.h>
#include <algorithm>
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "base/logging.h"
#include "base/memory/scoped_refptr.h"
#include "build/build_config.h"
#include "cc/paint/image_transfer_cache_entry.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/skia/include/core/SkColor.h"
#include "third_party/skia/include/core/SkImage.h"
#include "third_party/skia/include/core/SkImageInfo.h"
#include "third_party/skia/include/core/SkPixmap.h"
#include "third_party/skia/include/core/SkRefCnt.h"
#include "third_party/skia/include/gpu/GrBackendSurface.h"
#include "third_party/skia/include/gpu/GrContext.h"
#include "third_party/skia/include/gpu/GrTypes.h"
#include "third_party/skia/include/gpu/gl/GrGLInterface.h"
#include "third_party/skia/include/gpu/gl/GrGLTypes.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gl/gl_bindings.h"
#include "ui/gl/gl_context.h"
#include "ui/gl/gl_context_egl.h"
#include "ui/gl/gl_share_group.h"
#include "ui/gl/gl_surface.h"
#include "ui/gl/init/create_gr_gl_interface.h"
#include "ui/gl/init/gl_factory.h"
namespace cc {
namespace {
constexpr SkYUVColorSpace kJpegYUVColorSpace =
SkYUVColorSpace::kJPEG_SkYUVColorSpace;
void MarkTextureAsReleased(SkImage::ReleaseContext context) {
auto* released = static_cast<bool*>(context);
DCHECK(!*released);
*released = true;
}
// Checks if all the pixels in |image| are |expected_color|.
bool CheckImageIsSolidColor(const sk_sp<SkImage>& image,
SkColor expected_color) {
DCHECK_GE(image->width(), 1);
DCHECK_GE(image->height(), 1);
SkBitmap bitmap;
if (!bitmap.tryAllocN32Pixels(image->width(), image->height()))
return false;
SkPixmap pixmap;
if (!bitmap.peekPixels(&pixmap))
return false;
if (!image->readPixels(pixmap, 0 /* srcX */, 0 /* srcY */))
return false;
for (int y = 0; y < image->height(); y++) {
for (int x = 0; x < image->width(); x++) {
if (bitmap.getColor(x, y) != expected_color)
return false;
}
}
return true;
}
class ImageTransferCacheEntryTest
: public testing::TestWithParam<YUVDecodeFormat> {
public:
void SetUp() override {
// Initialize a GL GrContext for Skia.
surface_ = gl::init::CreateOffscreenGLSurface(gfx::Size());
ASSERT_TRUE(surface_);
share_group_ = base::MakeRefCounted<gl::GLShareGroup>();
gl_context_ = base::MakeRefCounted<gl::GLContextEGL>(share_group_.get());
ASSERT_TRUE(gl_context_);
ASSERT_TRUE(
gl_context_->Initialize(surface_.get(), gl::GLContextAttribs()));
ASSERT_TRUE(gl_context_->MakeCurrent(surface_.get()));
sk_sp<GrGLInterface> interface(gl::init::CreateGrGLInterface(
*gl_context_->GetVersionInfo(), false /* use_version_es2 */));
gr_context_ = GrContext::MakeGL(std::move(interface));
ASSERT_TRUE(gr_context_);
}
// Creates the textures for a 64x64 YUV 4:2:0 image where all the samples in
// all planes are 255u. This corresponds to an RGB color of (255, 121, 255)
// assuming the JPEG YUV-to-RGB conversion formulas. Returns a list of
// SkImages backed by the textures. Note that the number of textures depends
// on the format (obtained using GetParam()). |release_flags| is set to a list
// of boolean flags initialized to false. Each flag corresponds to a plane (in
// the same order as the returned SkImages). When the texture for that plane
// is released by Skia, that flag will be set to true. Returns an empty vector
// on failure.
std::vector<sk_sp<SkImage>> CreateTestYUVImage(
std::unique_ptr<bool[]>* release_flags) {
std::vector<sk_sp<SkImage>> plane_images;
*release_flags = nullptr;
if (GetParam() == YUVDecodeFormat::kYUV3 ||
GetParam() == YUVDecodeFormat::kYVU3) {
*release_flags =
std::unique_ptr<bool[]>(new bool[3]{false, false, false});
plane_images = {
CreateSolidPlane(gr_context(), 64, 64, GL_R8_EXT, SkColors::kWhite,
release_flags->get()),
CreateSolidPlane(gr_context(), 32, 32, GL_R8_EXT, SkColors::kWhite,
release_flags->get() + 1),
CreateSolidPlane(gr_context(), 32, 32, GL_R8_EXT, SkColors::kWhite,
release_flags->get() + 2)};
} else if (GetParam() == YUVDecodeFormat::kYUV2) {
*release_flags = std::unique_ptr<bool[]>(new bool[2]{false, false});
plane_images = {
CreateSolidPlane(gr_context(), 64, 64, GL_R8_EXT, SkColors::kWhite,
release_flags->get()),
CreateSolidPlane(gr_context(), 32, 32, GL_RG8_EXT, SkColors::kWhite,
release_flags->get() + 1)};
} else {
NOTREACHED();
return {};
}
if (std::all_of(plane_images.cbegin(), plane_images.cend(),
[](sk_sp<SkImage> plane) { return !!plane; })) {
return plane_images;
}
return {};
}
void DeletePendingTextures() {
DCHECK(gr_context_);
for (const auto& texture : textures_to_free_) {
if (texture.isValid())
gr_context_->deleteBackendTexture(texture);
}
gr_context_->flush();
textures_to_free_.clear();
}
void TearDown() override {
DeletePendingTextures();
gr_context_.reset();
surface_->PrepareToDestroy(gl_context_->IsCurrent(surface_.get()));
surface_.reset();
gl_context_.reset();
share_group_.reset();
}
GrContext* gr_context() const { return gr_context_.get(); }
private:
// Uploads a texture corresponding to a single plane in a YUV image. All the
// samples in the plane are set to |color|. The texture is not owned by Skia:
// when Skia doesn't need it anymore, MarkTextureAsReleased() will be called.
sk_sp<SkImage> CreateSolidPlane(GrContext* gr_context,
int width,
int height,
GrGLenum texture_format,
const SkColor4f& color,
bool* released) {
GrBackendTexture allocated_texture = gr_context->createBackendTexture(
width, height, GrBackendFormat::MakeGL(texture_format, GL_TEXTURE_2D),
color, GrMipMapped::kNo, GrRenderable::kNo);
if (!allocated_texture.isValid())
return nullptr;
textures_to_free_.push_back(allocated_texture);
GrGLTextureInfo allocated_texture_info;
if (!allocated_texture.getGLTextureInfo(&allocated_texture_info))
return nullptr;
DCHECK_EQ(width, allocated_texture.width());
DCHECK_EQ(height, allocated_texture.height());
DCHECK(!allocated_texture.hasMipMaps());
DCHECK(allocated_texture_info.fTarget == GL_TEXTURE_2D);
if (texture_format == GL_RG8_EXT) {
// TODO(crbug.com/985458): using GL_RGBA8_EXT is a workaround so that we
// can make a SkImage out of a GL_RG8_EXT texture. Revisit this once Skia
// supports a corresponding SkColorType.
allocated_texture = GrBackendTexture(
width, height, GrMipMapped::kNo,
GrGLTextureInfo{GL_TEXTURE_2D, allocated_texture_info.fID,
GL_RGBA8_EXT});
}
*released = false;
return SkImage::MakeFromTexture(
gr_context, allocated_texture, kTopLeft_GrSurfaceOrigin,
texture_format == GL_RG8_EXT ? kRGBA_8888_SkColorType
: kAlpha_8_SkColorType,
kOpaque_SkAlphaType, nullptr /* colorSpace */, MarkTextureAsReleased,
released);
}
std::vector<GrBackendTexture> textures_to_free_;
scoped_refptr<gl::GLSurface> surface_;
scoped_refptr<gl::GLShareGroup> share_group_;
scoped_refptr<gl::GLContext> gl_context_;
sk_sp<GrContext> gr_context_;
};
TEST_P(ImageTransferCacheEntryTest, HardwareDecodedNoMipsAtCreation) {
std::unique_ptr<bool[]> release_flags;
std::vector<sk_sp<SkImage>> plane_images = CreateTestYUVImage(&release_flags);
ASSERT_EQ(NumberOfPlanesForYUVDecodeFormat(GetParam()), plane_images.size());
// Create a service-side image cache entry backed by these planes and do not
// request generating mipmap chains. The |buffer_byte_size| is only used for
// accounting, so we just set it to 0u.
auto entry(std::make_unique<ServiceImageTransferCacheEntry>());
EXPECT_TRUE(entry->BuildFromHardwareDecodedImage(
gr_context(), std::move(plane_images),
GetParam() /* plane_images_format */, kJpegYUVColorSpace,
0u /* buffer_byte_size */, false /* needs_mips */));
// We didn't request generating mipmap chains, so the textures we created
// above should stay alive until after the cache entry is deleted.
EXPECT_TRUE(std::none_of(release_flags.get(),
release_flags.get() + plane_images.size(),
[](bool released) { return released; }));
entry.reset();
EXPECT_TRUE(std::all_of(release_flags.get(),
release_flags.get() + plane_images.size(),
[](bool released) { return released; }));
}
TEST_P(ImageTransferCacheEntryTest, HardwareDecodedMipsAtCreation) {
#if defined(OS_ANDROID)
// TODO(crbug.com/985458): this test is failing on Android for NV12 and we
// don't understand why yet. Revisit this once Skia supports an RG8
// SkColorType.
if (GetParam() == YUVDecodeFormat::kYUV2)
return;
#endif
std::unique_ptr<bool[]> release_flags;
std::vector<sk_sp<SkImage>> plane_images = CreateTestYUVImage(&release_flags);
ASSERT_EQ(NumberOfPlanesForYUVDecodeFormat(GetParam()), plane_images.size());
// Create a service-side image cache entry backed by these planes and request
// generating mipmap chains at creation time. The |buffer_byte_size| is only
// used for accounting, so we just set it to 0u.
auto entry(std::make_unique<ServiceImageTransferCacheEntry>());
EXPECT_TRUE(entry->BuildFromHardwareDecodedImage(
gr_context(), std::move(plane_images),
GetParam() /* plane_images_format */, kJpegYUVColorSpace,
0u /* buffer_byte_size */, true /* needs_mips */));
// We requested generating mipmap chains at creation time, so the textures we
// created above should be released by now.
EXPECT_TRUE(std::all_of(release_flags.get(),
release_flags.get() + plane_images.size(),
[](bool released) { return released; }));
DeletePendingTextures();
// Make sure that when we read the pixels from the YUV image, we get the
// correct RGB color corresponding to the planes created previously. This
// basically checks that after deleting the original YUV textures, the new
// YUV image is backed by the correct mipped planes.
ASSERT_TRUE(entry->image());
EXPECT_TRUE(
CheckImageIsSolidColor(entry->image(), SkColorSetRGB(255, 121, 255)));
}
TEST_P(ImageTransferCacheEntryTest, HardwareDecodedMipsAfterCreation) {
#if defined(OS_ANDROID)
// TODO(crbug.com/985458): this test is failing on Android for NV12 and we
// don't understand why yet. Revisit this once Skia supports an RG8
// SkColorType.
if (GetParam() == YUVDecodeFormat::kYUV2)
return;
#endif
std::unique_ptr<bool[]> release_flags;
std::vector<sk_sp<SkImage>> plane_images = CreateTestYUVImage(&release_flags);
ASSERT_EQ(NumberOfPlanesForYUVDecodeFormat(GetParam()), plane_images.size());
// Create a service-side image cache entry backed by these planes and do not
// request generating mipmap chains at creation time. The |buffer_byte_size|
// is only used for accounting, so we just set it to 0u.
auto entry(std::make_unique<ServiceImageTransferCacheEntry>());
EXPECT_TRUE(entry->BuildFromHardwareDecodedImage(
gr_context(), std::move(plane_images),
GetParam() /* plane_images_format */, kJpegYUVColorSpace,
0u /* buffer_byte_size */, false /* needs_mips */));
// We didn't request generating mip chains, so the textures we created above
// should stay alive for now.
EXPECT_TRUE(std::none_of(release_flags.get(),
release_flags.get() + plane_images.size(),
[](bool released) { return released; }));
// Now request generating the mip chains.
entry->EnsureMips();
// Now the original textures should have been released.
EXPECT_TRUE(std::all_of(release_flags.get(),
release_flags.get() + plane_images.size(),
[](bool released) { return released; }));
DeletePendingTextures();
// Make sure that when we read the pixels from the YUV image, we get the
// correct RGB color corresponding to the planes created previously. This
// basically checks that after deleting the original YUV textures, the new
// YUV image is backed by the correct mipped planes.
ASSERT_TRUE(entry->image());
EXPECT_TRUE(
CheckImageIsSolidColor(entry->image(), SkColorSetRGB(255, 121, 255)));
}
std::string TestParamToString(
const testing::TestParamInfo<YUVDecodeFormat>& param_info) {
switch (param_info.param) {
case YUVDecodeFormat::kYUV3:
return "YUV3";
case YUVDecodeFormat::kYVU3:
return "YVU3";
case YUVDecodeFormat::kYUV2:
return "YUV2";
default:
NOTREACHED();
return "";
}
}
INSTANTIATE_TEST_SUITE_P(,
ImageTransferCacheEntryTest,
::testing::Values(YUVDecodeFormat::kYUV3,
YUVDecodeFormat::kYVU3,
YUVDecodeFormat::kYUV2),
TestParamToString);
} // namespace
} // namespace cc