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