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/resource_provider.h"
  19 #include "cc/resources/texture_mailbox_deleter.h"
  20 #include "cc/test/fake_output_surface_client.h"
  21 #include "cc/test/paths.h"
  22 #include "cc/test/pixel_test_output_surface.h"
  23 #include "cc/test/pixel_test_software_output_device.h"
  24 #include "cc/test/pixel_test_utils.h"
  25 #include "cc/test/test_in_process_context_provider.h"
  26 #include "cc/test/test_shared_bitmap_manager.h"
  27 #include "testing/gtest/include/gtest/gtest.h"
  28
  29 namespace cc {
  30
  31 PixelTest::PixelTest()
  32     : device_viewport_size_(gfx::Size(200, 200)),
  33       disable_picture_quad_image_filtering_(false),
  34       output_surface_client_(new FakeOutputSurfaceClient) {}
  35
  36 PixelTest::~PixelTest() {}
  37
  38 bool PixelTest::RunPixelTest(RenderPassList* pass_list,
  39                              OffscreenContextOption provide_offscreen_context,
  40                              const base::FilePath& ref_file,
  41                              const PixelComparator& comparator) {
  42   return RunPixelTestWithReadbackTarget(pass_list,
  43                                         pass_list->back(),
  44                                         provide_offscreen_context,
  45                                         ref_file,
  46                                         comparator);
  47 }
  48
  49 bool PixelTest::RunPixelTestWithReadbackTarget(
  50     RenderPassList* pass_list,
  51     RenderPass* target,
  52     OffscreenContextOption provide_offscreen_context,
  53     const base::FilePath& ref_file,
  54     const PixelComparator& comparator) {
  55   base::RunLoop run_loop;
  56
  57   target->copy_requests.push_back(CopyOutputRequest::CreateBitmapRequest(
  58       base::Bind(&PixelTest::ReadbackResult,
  59                  base::Unretained(this),
  60                  run_loop.QuitClosure())));
  61
  62   scoped_refptr<ContextProvider> offscreen_contexts;
  63   switch (provide_offscreen_context) {
  64     case NoOffscreenContext:
  65       break;
  66     case WithOffscreenContext:
  67       offscreen_contexts = new TestInProcessContextProvider;
  68       CHECK(offscreen_contexts->BindToCurrentThread());
  69       break;
  70   }
  71
  72   float device_scale_factor = 1.f;
  73   gfx::Rect device_viewport_rect =
  74       gfx::Rect(device_viewport_size_) + external_device_viewport_offset_;
  75   gfx::Rect device_clip_rect = external_device_clip_rect_.IsEmpty()
  76                                    ? device_viewport_rect
  77                                    : external_device_clip_rect_;
  78   renderer_->DecideRenderPassAllocationsForFrame(*pass_list);
  79   renderer_->DrawFrame(pass_list,
  80                        offscreen_contexts.get(),
  81                        device_scale_factor,
  82                        device_viewport_rect,
  83                        device_clip_rect,
  84                        disable_picture_quad_image_filtering_);
  85
  86   // Wait for the readback to complete.
  87   resource_provider_->Finish();
  88   run_loop.Run();
  89
  90   return PixelsMatchReference(ref_file, comparator);
  91 }
  92
  93 void PixelTest::ReadbackResult(base::Closure quit_run_loop,
  94                                scoped_ptr<CopyOutputResult> result) {
  95   ASSERT_TRUE(result->HasBitmap());
  96   result_bitmap_ = result->TakeBitmap().Pass();
  97   quit_run_loop.Run();
  98 }
  99
 100 bool PixelTest::PixelsMatchReference(const base::FilePath& ref_file,
 101                                      const PixelComparator& comparator) {
 102   base::FilePath test_data_dir;
 103   if (!PathService::Get(CCPaths::DIR_TEST_DATA, &test_data_dir))
 104     return false;
 105
 106   // If this is false, we didn't set up a readback on a render pass.
 107   if (!result_bitmap_)
 108     return false;
 109
 110   CommandLine* cmd = CommandLine::ForCurrentProcess();
 111   if (cmd->HasSwitch(switches::kCCRebaselinePixeltests))
 112     return WritePNGFile(*result_bitmap_, test_data_dir.Append(ref_file), true);
 113
 114   return MatchesPNGFile(
 115       *result_bitmap_, test_data_dir.Append(ref_file), comparator);
 116 }
 117
 118 void PixelTest::SetUpGLRenderer(bool use_skia_gpu_backend) {
 119   enable_pixel_output_.reset(new gfx::DisableNullDrawGLBindings);
 120
 121   output_surface_.reset(
 122       new PixelTestOutputSurface(new TestInProcessContextProvider));
 123   output_surface_->BindToClient(output_surface_client_.get());
 124
 125   shared_bitmap_manager_.reset(new TestSharedBitmapManager());
 126   resource_provider_ = ResourceProvider::Create(
 127       output_surface_.get(), shared_bitmap_manager_.get(), 0, false, 1);
 128
 129   texture_mailbox_deleter_ = make_scoped_ptr(
 130       new TextureMailboxDeleter(base::MessageLoopProxy::current()));
 131
 132   renderer_ = GLRenderer::Create(this,
 133                                  &settings_,
 134                                  output_surface_.get(),
 135                                  resource_provider_.get(),
 136                                  texture_mailbox_deleter_.get(),
 137                                  0).PassAs<DirectRenderer>();
 138 }
 139
 140 void PixelTest::ForceExpandedViewport(const gfx::Size& surface_expansion) {
 141   static_cast<PixelTestOutputSurface*>(output_surface_.get())
 142       ->set_surface_expansion_size(surface_expansion);
 143   SoftwareOutputDevice* device = output_surface_->software_device();
 144   if (device) {
 145     static_cast<PixelTestSoftwareOutputDevice*>(device)
 146         ->set_surface_expansion_size(surface_expansion);
 147   }
 148 }
 149
 150 void PixelTest::ForceViewportOffset(const gfx::Vector2d& viewport_offset) {
 151   external_device_viewport_offset_ = viewport_offset;
 152 }
 153
 154 void PixelTest::ForceDeviceClip(const gfx::Rect& clip) {
 155   external_device_clip_rect_ = clip;
 156 }
 157
 158 void PixelTest::EnableExternalStencilTest() {
 159   static_cast<PixelTestOutputSurface*>(output_surface_.get())
 160       ->set_has_external_stencil_test(true);
 161 }
 162
 163 void PixelTest::SetUpSoftwareRenderer() {
 164   scoped_ptr<SoftwareOutputDevice> device(new PixelTestSoftwareOutputDevice());
 165   output_surface_.reset(new PixelTestOutputSurface(device.Pass()));
 166   output_surface_->BindToClient(output_surface_client_.get());
 167   shared_bitmap_manager_.reset(new TestSharedBitmapManager());
 168   resource_provider_ = ResourceProvider::Create(
 169       output_surface_.get(), shared_bitmap_manager_.get(), 0, false, 1);
 170   renderer_ =
 171       SoftwareRenderer::Create(
 172           this, &settings_, output_surface_.get(), resource_provider_.get())
 173           .PassAs<DirectRenderer>();
 174 }
 175
 176 }  // namespace cc