Introduce components/display_compositor

components/display_compositor/gl_helper_benchmark.cc

 // 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 "content/browser/compositor/gl_helper.h"
-#include "content/browser/compositor/gl_helper_scaling.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 "gpu/command_buffer/client/shared_memory_limits.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 content {
+namespace display_compositor {
 
-content::GLHelper::ScalerQuality kQualities[] = {
-    content::GLHelper::SCALER_QUALITY_BEST,
-    content::GLHelper::SCALER_QUALITY_GOOD,
-    content::GLHelper::SCALER_QUALITY_FAST,
+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",
 };
 
-class GLHelperTest : public testing::Test {
+}  // 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::SharedMemoryLimits(),
         nullptr, /* gpu_memory_buffer_manager */
         nullptr /* image_factory */));
     gl_ = context_->GetImplementation();
     gpu::ContextSupport* support = context_->GetImplementation();
 
-    helper_.reset(new content::GLHelper(gl_, support));
-    helper_scaling_.reset(new content::GLHelperScaling(gl_, helper_.get()));
+    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;
@@ skipping 16 matching lines @@
     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<content::GLHelper> helper_;
-  std::unique_ptr<content::GLHelperScaling> helper_scaling_;
+  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(GLHelperTest, ScaleBenchmark) {
+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);
@@ skipping 13 matching lines @@
         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<content::GLHelper::ScalerInterface> scaler(
+        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) {
@@ skipping 27 matching lines @@
     }
   }
 }
 
 // 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(GLHelperTest, DISABLED_ScaleTestImage) {
+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);
@@ skipping 24 matching lines @@
       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 content
+}  // namespace display_compositor