Revert of Introduce components/display_compositor

components/display_compositor/gl_helper_benchmark.cc

Index: components/display_compositor/gl_helper_benchmark.cc
diff --git a/components/display_compositor/gl_helper_benchmark.cc b/components/display_compositor/gl_helper_benchmark.cc
deleted file mode 100644
index ee5e799b77b4042ca3713bb4a50b6d2533b23fec..0000000000000000000000000000000000000000
--- a/components/display_compositor/gl_helper_benchmark.cc
+++ /dev/null
@@ -1,252 +0,0 @@
-// 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/time/time.h"
-#include "components/display_compositor/gl_helper.h"
-#include "components/display_compositor/gl_helper_scaling.h"
-#include "gpu/command_buffer/client/gl_in_process_context.h"
-#include "gpu/command_buffer/client/gles2_implementation.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;
-
-    context_.reset(gpu::GLInProcessContext::Create(
-        nullptr,                     /* service */
-        nullptr,                     /* surface */
-        true,                        /* offscreen */
-        gfx::kNullAcceleratedWidget, /* window */
-        gfx::Size(1, 1),             /* size */
-        nullptr,                     /* share_context */
-        attributes, gfx::PreferDiscreteGpu,
-        ::gpu::GLInProcessContextSharedMemoryLimits(),
-        nullptr, /* gpu_memory_buffer_manager */
-        nullptr /* image_factory */));
-    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