| // Copyright (c) 2012 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. |
| |
| // This file looks like a unit test, but it contains benchmarks and test |
| // utilities intended for manual evaluation of the scalers in |
| // gl_helper*. These tests produce output in the form of files and printouts, |
| // but cannot really "fail". There is no point in making these tests part |
| // of any test automation run. |
| |
| #include <stddef.h> |
| #include <stdio.h> |
| #include <cmath> |
| #include <string> |
| #include <vector> |
| |
| #include <GLES2/gl2.h> |
| #include <GLES2/gl2ext.h> |
| #include <GLES2/gl2extchromium.h> |
| |
| #include "base/at_exit.h" |
| #include "base/command_line.h" |
| #include "base/files/file_util.h" |
| #include "base/macros.h" |
| #include "base/strings/stringprintf.h" |
| #include "base/threading/thread_task_runner_handle.h" |
| #include "base/time/time.h" |
| #include "components/display_compositor/gl_helper.h" |
| #include "components/display_compositor/gl_helper_scaling.h" |
| #include "gpu/command_buffer/client/gles2_implementation.h" |
| #include "gpu/command_buffer/client/shared_memory_limits.h" |
| #include "gpu/ipc/gl_in_process_context.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "third_party/skia/include/core/SkBitmap.h" |
| #include "third_party/skia/include/core/SkTypes.h" |
| #include "ui/gfx/codec/png_codec.h" |
| #include "ui/gl/gl_surface.h" |
| |
| namespace display_compositor { |
| |
| namespace { |
| |
| display_compositor::GLHelper::ScalerQuality kQualities[] = { |
| display_compositor::GLHelper::SCALER_QUALITY_BEST, |
| display_compositor::GLHelper::SCALER_QUALITY_GOOD, |
| display_compositor::GLHelper::SCALER_QUALITY_FAST, |
| }; |
| |
| const char* const kQualityNames[] = { |
| "best", "good", "fast", |
| }; |
| |
| } // namespace |
| |
| class GLHelperBenchmark : public testing::Test { |
| protected: |
| void SetUp() override { |
| gpu::gles2::ContextCreationAttribHelper attributes; |
| attributes.alpha_size = 8; |
| attributes.depth_size = 24; |
| attributes.red_size = 8; |
| attributes.green_size = 8; |
| attributes.blue_size = 8; |
| attributes.stencil_size = 8; |
| attributes.samples = 4; |
| attributes.sample_buffers = 1; |
| attributes.bind_generates_resource = false; |
| attributes.gpu_preference = gl::PreferDiscreteGpu; |
| |
| context_.reset( |
| gpu::GLInProcessContext::Create(nullptr, /* service */ |
| nullptr, /* surface */ |
| true, /* offscreen */ |
| gpu::kNullSurfaceHandle, /* window */ |
| nullptr, /* share_context */ |
| attributes, gpu::SharedMemoryLimits(), |
| nullptr, /* gpu_memory_buffer_manager */ |
| nullptr, /* image_factory */ |
| base::ThreadTaskRunnerHandle::Get())); |
| gl_ = context_->GetImplementation(); |
| gpu::ContextSupport* support = context_->GetImplementation(); |
| |
| helper_.reset(new display_compositor::GLHelper(gl_, support)); |
| helper_scaling_.reset( |
| new display_compositor::GLHelperScaling(gl_, helper_.get())); |
| } |
| |
| void TearDown() override { |
| helper_scaling_.reset(NULL); |
| helper_.reset(NULL); |
| context_.reset(NULL); |
| } |
| |
| void LoadPngFileToSkBitmap(const base::FilePath& filename, SkBitmap* bitmap) { |
| std::string compressed; |
| base::ReadFileToString(base::MakeAbsoluteFilePath(filename), &compressed); |
| ASSERT_TRUE(compressed.size()); |
| ASSERT_TRUE(gfx::PNGCodec::Decode( |
| reinterpret_cast<const unsigned char*>(compressed.data()), |
| compressed.size(), bitmap)); |
| } |
| |
| // Save the image to a png file. Used to create the initial test files. |
| void SaveToFile(SkBitmap* bitmap, const base::FilePath& filename) { |
| std::vector<unsigned char> compressed; |
| ASSERT_TRUE(gfx::PNGCodec::Encode( |
| static_cast<unsigned char*>(bitmap->getPixels()), |
| gfx::PNGCodec::FORMAT_BGRA, |
| gfx::Size(bitmap->width(), bitmap->height()), |
| static_cast<int>(bitmap->rowBytes()), true, |
| std::vector<gfx::PNGCodec::Comment>(), &compressed)); |
| ASSERT_TRUE(compressed.size()); |
| FILE* f = base::OpenFile(filename, "wb"); |
| ASSERT_TRUE(f); |
| ASSERT_EQ(fwrite(&*compressed.begin(), 1, compressed.size(), f), |
| compressed.size()); |
| base::CloseFile(f); |
| } |
| |
| std::unique_ptr<gpu::GLInProcessContext> context_; |
| gpu::gles2::GLES2Interface* gl_; |
| std::unique_ptr<display_compositor::GLHelper> helper_; |
| std::unique_ptr<display_compositor::GLHelperScaling> helper_scaling_; |
| std::deque<GLHelperScaling::ScaleOp> x_ops_, y_ops_; |
| }; |
| |
| TEST_F(GLHelperBenchmark, ScaleBenchmark) { |
| int output_sizes[] = {1920, 1080, 1249, 720, // Output size on pixel |
| 256, 144}; |
| int input_sizes[] = {3200, 2040, 2560, 1476, // Pixel tab size |
| 1920, 1080, 1280, 720, 800, 480, 256, 144}; |
| |
| for (size_t q = 0; q < arraysize(kQualities); q++) { |
| for (size_t outsize = 0; outsize < arraysize(output_sizes); outsize += 2) { |
| for (size_t insize = 0; insize < arraysize(input_sizes); insize += 2) { |
| uint32_t src_texture; |
| gl_->GenTextures(1, &src_texture); |
| uint32_t dst_texture; |
| gl_->GenTextures(1, &dst_texture); |
| uint32_t framebuffer; |
| gl_->GenFramebuffers(1, &framebuffer); |
| const gfx::Size src_size(input_sizes[insize], input_sizes[insize + 1]); |
| const gfx::Size dst_size(output_sizes[outsize], |
| output_sizes[outsize + 1]); |
| SkBitmap input; |
| input.allocN32Pixels(src_size.width(), src_size.height()); |
| |
| SkBitmap output_pixels; |
| output_pixels.allocN32Pixels(dst_size.width(), dst_size.height()); |
| |
| gl_->BindFramebuffer(GL_FRAMEBUFFER, framebuffer); |
| gl_->BindTexture(GL_TEXTURE_2D, dst_texture); |
| gl_->TexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, dst_size.width(), |
| dst_size.height(), 0, GL_RGBA, GL_UNSIGNED_BYTE, 0); |
| gl_->BindTexture(GL_TEXTURE_2D, src_texture); |
| gl_->TexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, src_size.width(), |
| src_size.height(), 0, GL_RGBA, GL_UNSIGNED_BYTE, |
| input.getPixels()); |
| |
| gfx::Rect src_subrect(0, 0, src_size.width(), src_size.height()); |
| std::unique_ptr<display_compositor::GLHelper::ScalerInterface> scaler( |
| helper_->CreateScaler(kQualities[q], src_size, src_subrect, |
| dst_size, false, false)); |
| // Scale once beforehand before we start measuring. |
| scaler->Scale(src_texture, dst_texture); |
| gl_->Finish(); |
| |
| base::TimeTicks start_time = base::TimeTicks::Now(); |
| int iterations = 0; |
| base::TimeTicks end_time; |
| while (true) { |
| for (int i = 0; i < 50; i++) { |
| iterations++; |
| scaler->Scale(src_texture, dst_texture); |
| gl_->Flush(); |
| } |
| gl_->Finish(); |
| end_time = base::TimeTicks::Now(); |
| if (iterations > 2000) { |
| break; |
| } |
| if ((end_time - start_time).InMillisecondsF() > 1000) { |
| break; |
| } |
| } |
| gl_->DeleteTextures(1, &dst_texture); |
| gl_->DeleteTextures(1, &src_texture); |
| gl_->DeleteFramebuffers(1, &framebuffer); |
| |
| std::string name; |
| name = base::StringPrintf("scale_%dx%d_to_%dx%d_%s", src_size.width(), |
| src_size.height(), dst_size.width(), |
| dst_size.height(), kQualityNames[q]); |
| |
| float ms = (end_time - start_time).InMillisecondsF() / iterations; |
| VLOG(0) << base::StringPrintf("*RESULT gpu_scale_time: %s=%.2f ms\n", |
| name.c_str(), ms); |
| } |
| } |
| } |
| } |
| |
| // This is more of a test utility than a test. |
| // Put an PNG image called "testimage.png" in your |
| // current directory, then run this test. It will |
| // create testoutput_Q_P.png, where Q is the scaling |
| // mode and P is the scaling percentage taken from |
| // the table below. |
| TEST_F(GLHelperBenchmark, DISABLED_ScaleTestImage) { |
| int percents[] = { |
| 230, 180, 150, 110, 90, 70, 50, 49, 40, 20, 10, |
| }; |
| |
| SkBitmap input; |
| LoadPngFileToSkBitmap(base::FilePath(FILE_PATH_LITERAL("testimage.png")), |
| &input); |
| |
| uint32_t framebuffer; |
| gl_->GenFramebuffers(1, &framebuffer); |
| uint32_t src_texture; |
| gl_->GenTextures(1, &src_texture); |
| const gfx::Size src_size(input.width(), input.height()); |
| gl_->BindFramebuffer(GL_FRAMEBUFFER, framebuffer); |
| gl_->BindTexture(GL_TEXTURE_2D, src_texture); |
| gl_->TexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, src_size.width(), |
| src_size.height(), 0, GL_RGBA, GL_UNSIGNED_BYTE, |
| input.getPixels()); |
| |
| for (size_t q = 0; q < arraysize(kQualities); q++) { |
| for (size_t p = 0; p < arraysize(percents); p++) { |
| const gfx::Size dst_size(input.width() * percents[p] / 100, |
| input.height() * percents[p] / 100); |
| uint32_t dst_texture = helper_->CopyAndScaleTexture( |
| src_texture, src_size, dst_size, false, kQualities[q]); |
| |
| SkBitmap output_pixels; |
| output_pixels.allocN32Pixels(dst_size.width(), dst_size.height()); |
| |
| helper_->ReadbackTextureSync( |
| dst_texture, gfx::Rect(0, 0, dst_size.width(), dst_size.height()), |
| static_cast<unsigned char*>(output_pixels.getPixels()), |
| kN32_SkColorType); |
| gl_->DeleteTextures(1, &dst_texture); |
| std::string filename = base::StringPrintf("testoutput_%s_%d.ppm", |
| kQualityNames[q], percents[p]); |
| VLOG(0) << "Writing " << filename; |
| SaveToFile(&output_pixels, base::FilePath::FromUTF8Unsafe(filename)); |
| } |
| } |
| gl_->DeleteTextures(1, &src_texture); |
| gl_->DeleteFramebuffers(1, &framebuffer); |
| } |
| |
| } // namespace display_compositor |