cc/test/pixel_test.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "cc/test/pixel_test.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/message_loop/message_loop_proxy.h"
   9 #include "base/path_service.h"
  10 #include "base/run_loop.h"
  11 #include "cc/base/switches.h"
  12 #include "cc/output/compositor_frame_metadata.h"
  13 #include "cc/output/copy_output_request.h"
  14 #include "cc/output/copy_output_result.h"
  15 #include "cc/output/gl_renderer.h"
  16 #include "cc/output/output_surface_client.h"
  17 #include "cc/output/software_renderer.h"
  18 #include "cc/resources/raster_worker_pool.h"
  19 #include "cc/resources/resource_provider.h"
  20 #include "cc/resources/texture_mailbox_deleter.h"
  21 #include "cc/test/fake_output_surface_client.h"
  22 #include "cc/test/paths.h"
  23 #include "cc/test/pixel_test_output_surface.h"
  24 #include "cc/test/pixel_test_software_output_device.h"
  25 #include "cc/test/pixel_test_utils.h"
  26 #include "cc/test/test_gpu_memory_buffer_manager.h"
  27 #include "cc/test/test_in_process_context_provider.h"
  28 #include "cc/test/test_shared_bitmap_manager.h"
  29 #include "cc/trees/blocking_task_runner.h"
  30 #include "gpu/command_buffer/client/gles2_interface.h"
  31 #include "testing/gtest/include/gtest/gtest.h"
  32
  33 namespace cc {
  34
  35 PixelTest::PixelTest()
  36     : device_viewport_size_(gfx::Size(200, 200)),
  37       disable_picture_quad_image_filtering_(false),
  38       output_surface_client_(new FakeOutputSurfaceClient),
  39       main_thread_task_runner_(
  40           BlockingTaskRunner::Create(base::MessageLoopProxy::current())) {
  41 }
  42 PixelTest::~PixelTest() {}
  43
  44 bool PixelTest::RunPixelTest(RenderPassList* pass_list,
  45                              const base::FilePath& ref_file,
  46                              const PixelComparator& comparator) {
  47   return RunPixelTestWithReadbackTarget(pass_list,
  48                                         pass_list->back(),
  49                                         ref_file,
  50                                         comparator);
  51 }
  52
  53 bool PixelTest::RunPixelTestWithReadbackTarget(
  54     RenderPassList* pass_list,
  55     RenderPass* target,
  56     const base::FilePath& ref_file,
  57     const PixelComparator& comparator) {
  58   return RunPixelTestWithReadbackTargetAndArea(
  59       pass_list, target, ref_file, comparator, nullptr);
  60 }
  61
  62 bool PixelTest::RunPixelTestWithReadbackTargetAndArea(
  63     RenderPassList* pass_list,
  64     RenderPass* target,
  65     const base::FilePath& ref_file,
  66     const PixelComparator& comparator,
  67     const gfx::Rect* copy_rect) {
  68   base::RunLoop run_loop;
  69
  70   scoped_ptr<CopyOutputRequest> request =
  71       CopyOutputRequest::CreateBitmapRequest(
  72           base::Bind(&PixelTest::ReadbackResult,
  73                      base::Unretained(this),
  74                      run_loop.QuitClosure()));
  75   if (copy_rect)
  76     request->set_area(*copy_rect);
  77   target->copy_requests.push_back(request.Pass());
  78
  79   float device_scale_factor = 1.f;
  80   gfx::Rect device_viewport_rect =
  81       gfx::Rect(device_viewport_size_) + external_device_viewport_offset_;
  82   gfx::Rect device_clip_rect = external_device_clip_rect_.IsEmpty()
  83                                    ? device_viewport_rect
  84                                    : external_device_clip_rect_;
  85   renderer_->DecideRenderPassAllocationsForFrame(*pass_list);
  86   renderer_->DrawFrame(pass_list,
  87                        device_scale_factor,
  88                        device_viewport_rect,
  89                        device_clip_rect,
  90                        disable_picture_quad_image_filtering_);
  91
  92   // Wait for the readback to complete.
  93   if (output_surface_->context_provider())
  94     output_surface_->context_provider()->ContextGL()->Finish();
  95   run_loop.Run();
  96
  97   return PixelsMatchReference(ref_file, comparator);
  98 }
  99
 100 void PixelTest::ReadbackResult(base::Closure quit_run_loop,
 101                                scoped_ptr<CopyOutputResult> result) {
 102   ASSERT_TRUE(result->HasBitmap());
 103   result_bitmap_ = result->TakeBitmap().Pass();
 104   quit_run_loop.Run();
 105 }
 106
 107 bool PixelTest::PixelsMatchReference(const base::FilePath& ref_file,
 108                                      const PixelComparator& comparator) {
 109   base::FilePath test_data_dir;
 110   if (!PathService::Get(CCPaths::DIR_TEST_DATA, &test_data_dir))
 111     return false;
 112
 113   // If this is false, we didn't set up a readback on a render pass.
 114   if (!result_bitmap_)
 115     return false;
 116
 117   CommandLine* cmd = CommandLine::ForCurrentProcess();
 118   if (cmd->HasSwitch(switches::kCCRebaselinePixeltests))
 119     return WritePNGFile(*result_bitmap_, test_data_dir.Append(ref_file), true);
 120
 121   return MatchesPNGFile(
 122       *result_bitmap_, test_data_dir.Append(ref_file), comparator);
 123 }
 124
 125 void PixelTest::SetUpGLRenderer(bool use_skia_gpu_backend,
 126                                 bool flipped_output_surface) {
 127   enable_pixel_output_.reset(new gfx::DisableNullDrawGLBindings);
 128
 129   output_surface_.reset(new PixelTestOutputSurface(
 130       new TestInProcessContextProvider, flipped_output_surface));
 131   output_surface_->BindToClient(output_surface_client_.get());
 132
 133   shared_bitmap_manager_.reset(new TestSharedBitmapManager);
 134   gpu_memory_buffer_manager_.reset(new TestGpuMemoryBufferManager);
 135   resource_provider_ =
 136       ResourceProvider::Create(output_surface_.get(),
 137                                shared_bitmap_manager_.get(),
 138                                gpu_memory_buffer_manager_.get(),
 139                                main_thread_task_runner_.get(),
 140                                0,
 141                                false,
 142                                1);
 143
 144   texture_mailbox_deleter_ = make_scoped_ptr(
 145       new TextureMailboxDeleter(base::MessageLoopProxy::current()));
 146
 147   renderer_ = GLRenderer::Create(this,
 148                                  &settings_,
 149                                  output_surface_.get(),
 150                                  resource_provider_.get(),
 151                                  texture_mailbox_deleter_.get(),
 152                                  0);
 153 }
 154
 155 void PixelTest::ForceExpandedViewport(const gfx::Size& surface_expansion) {
 156   static_cast<PixelTestOutputSurface*>(output_surface_.get())
 157       ->set_surface_expansion_size(surface_expansion);
 158   SoftwareOutputDevice* device = output_surface_->software_device();
 159   if (device) {
 160     static_cast<PixelTestSoftwareOutputDevice*>(device)
 161         ->set_surface_expansion_size(surface_expansion);
 162   }
 163 }
 164
 165 void PixelTest::ForceViewportOffset(const gfx::Vector2d& viewport_offset) {
 166   external_device_viewport_offset_ = viewport_offset;
 167 }
 168
 169 void PixelTest::ForceDeviceClip(const gfx::Rect& clip) {
 170   external_device_clip_rect_ = clip;
 171 }
 172
 173 void PixelTest::EnableExternalStencilTest() {
 174   static_cast<PixelTestOutputSurface*>(output_surface_.get())
 175       ->set_has_external_stencil_test(true);
 176 }
 177
 178 void PixelTest::SetUpSoftwareRenderer() {
 179   scoped_ptr<SoftwareOutputDevice> device(new PixelTestSoftwareOutputDevice());
 180   output_surface_.reset(new PixelTestOutputSurface(device.Pass()));
 181   output_surface_->BindToClient(output_surface_client_.get());
 182   shared_bitmap_manager_.reset(new TestSharedBitmapManager());
 183   resource_provider_ =
 184       ResourceProvider::Create(output_surface_.get(),
 185                                shared_bitmap_manager_.get(),
 186                                gpu_memory_buffer_manager_.get(),
 187                                main_thread_task_runner_.get(),
 188                                0,
 189                                false,
 190                                1);
 191   renderer_ = SoftwareRenderer::Create(
 192       this, &settings_, output_surface_.get(), resource_provider_.get());
 193 }
 194
 195 }  // namespace cc