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