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- // 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 <GLES2/gl2.h>
- #include <GLES2/gl2ext.h>
- #include <GLES2/gl2extchromium.h>
- #include <stddef.h>
- #include <stdio.h>
- #include <cmath>
- #include <memory>
- #include <string>
- #include <vector>
- #include "base/at_exit.h"
- #include "base/command_line.h"
- #include "base/files/file_util.h"
- #include "base/memory/raw_ptr.h"
- #include "base/run_loop.h"
- #include "base/strings/stringprintf.h"
- #include "base/test/task_environment.h"
- #include "base/threading/thread_task_runner_handle.h"
- #include "base/time/time.h"
- #include "components/viz/test/test_gpu_service_holder.h"
- #include "gpu/command_buffer/client/gl_helper.h"
- #include "gpu/command_buffer/client/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 "ui/gfx/codec/png_codec.h"
- namespace gpu {
- namespace {
- GLHelper::ScalerQuality kQualities[] = {
- GLHelper::SCALER_QUALITY_BEST,
- GLHelper::SCALER_QUALITY_GOOD,
- GLHelper::SCALER_QUALITY_FAST,
- };
- const char* const kQualityNames[] = {
- "best",
- "good",
- "fast",
- };
- } // namespace
- class GLHelperBenchmark : public testing::Test {
- protected:
- void SetUp() override {
- ContextCreationAttribs 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::GpuPreference::kHighPerformance;
- context_ = std::make_unique<GLInProcessContext>();
- auto result = context_->Initialize(
- viz::TestGpuServiceHolder::GetInstance()->task_executor(), attributes,
- SharedMemoryLimits(), /*image_factory=*/nullptr);
- DCHECK_EQ(result, ContextResult::kSuccess);
- gl_ = context_->GetImplementation();
- ContextSupport* support = context_->GetImplementation();
- helper_ = std::make_unique<GLHelper>(gl_, support);
- helper_scaling_ = std::make_unique<GLHelperScaling>(gl_, helper_.get());
- }
- void TearDown() override {
- helper_scaling_.reset(nullptr);
- helper_.reset(nullptr);
- context_.reset(nullptr);
- }
- 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);
- }
- base::test::TaskEnvironment task_environment_;
- std::unique_ptr<GLInProcessContext> context_;
- raw_ptr<gles2::GLES2Interface> gl_;
- std::unique_ptr<GLHelper> helper_;
- std::unique_ptr<GLHelperScaling> helper_scaling_;
- base::circular_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 < std::size(kQualities); q++) {
- for (size_t outsize = 0; outsize < std::size(output_sizes); outsize += 2) {
- for (size_t insize = 0; insize < std::size(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,
- nullptr);
- 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());
- std::unique_ptr<GLHelper::ScalerInterface> scaler =
- helper_->CreateScaler(
- kQualities[q],
- gfx::Vector2d(src_size.width(), src_size.height()),
- gfx::Vector2d(dst_size.width(), dst_size.height()), false,
- false, false);
- // Scale once beforehand before we start measuring.
- const gfx::Rect output_rect(dst_size);
- scaler->Scale(src_texture, src_size, gfx::Vector2dF(), dst_texture,
- output_rect);
- 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, src_size, gfx::Vector2dF(), dst_texture,
- output_rect);
- gl_->Flush();
- }
- gl_->Finish();
- end_time = base::TimeTicks::Now();
- if (iterations > 2000) {
- break;
- }
- if ((end_time - start_time) > base::Seconds(1)) {
- 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);
- }
- }
- }
- }
- } // namespace gpu
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