Home | History | Annotate | Download | only in test 
      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 "testing/gtest/include/gtest/gtest.h"
     25 #include "ui/gl/gl_implementation.h"
     26 #include "webkit/common/gpu/context_provider_in_process.h"
     27 #include "webkit/common/gpu/webgraphicscontext3d_in_process_command_buffer_impl.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<webkit::gpu::ContextProviderInProcess> offscreen_contexts;
     63   switch (provide_offscreen_context) {
     64     case NoOffscreenContext:
     65       break;
     66     case WithOffscreenContext:
     67       offscreen_contexts =
     68           webkit::gpu::ContextProviderInProcess::CreateOffscreen();
     69       CHECK(offscreen_contexts->BindToCurrentThread());
     70       break;
     71   }
     72 
     73   float device_scale_factor = 1.f;
     74   gfx::Rect device_viewport_rect =
     75       gfx::Rect(device_viewport_size_) + external_device_viewport_offset_;
     76   gfx::Rect device_clip_rect = external_device_clip_rect_.IsEmpty()
     77                                    ? device_viewport_rect
     78                                    : external_device_clip_rect_;
     79   bool allow_partial_swap = true;
     80 
     81   renderer_->DecideRenderPassAllocationsForFrame(*pass_list);
     82   renderer_->DrawFrame(pass_list,
     83                        offscreen_contexts.get(),
     84                        device_scale_factor,
     85                        device_viewport_rect,
     86                        device_clip_rect,
     87                        allow_partial_swap,
     88                        disable_picture_quad_image_filtering_);
     89 
     90   // Wait for the readback to complete.
     91   resource_provider_->Finish();
     92   run_loop.Run();
     93 
     94   return PixelsMatchReference(ref_file, comparator);
     95 }
     96 
     97 void PixelTest::ReadbackResult(base::Closure quit_run_loop,
     98                                scoped_ptr<CopyOutputResult> result) {
     99   ASSERT_TRUE(result->HasBitmap());
    100   result_bitmap_ = result->TakeBitmap().Pass();
    101   quit_run_loop.Run();
    102 }
    103 
    104 bool PixelTest::PixelsMatchReference(const base::FilePath& ref_file,
    105                                      const PixelComparator& comparator) {
    106   base::FilePath test_data_dir;
    107   if (!PathService::Get(CCPaths::DIR_TEST_DATA, &test_data_dir))
    108     return false;
    109 
    110   // If this is false, we didn't set up a readback on a render pass.
    111   if (!result_bitmap_)
    112     return false;
    113 
    114   CommandLine* cmd = CommandLine::ForCurrentProcess();
    115   if (cmd->HasSwitch(switches::kCCRebaselinePixeltests))
    116     return WritePNGFile(*result_bitmap_, test_data_dir.Append(ref_file), true);
    117 
    118   return MatchesPNGFile(*result_bitmap_,
    119                         test_data_dir.Append(ref_file),
    120                         comparator);
    121 }
    122 
    123 void PixelTest::SetUpGLRenderer(bool use_skia_gpu_backend) {
    124   CHECK(gfx::InitializeGLBindings(gfx::kGLImplementationOSMesaGL));
    125 
    126   using webkit::gpu::ContextProviderInProcess;
    127   output_surface_.reset(new PixelTestOutputSurface(
    128       ContextProviderInProcess::CreateOffscreen()));
    129   output_surface_->BindToClient(output_surface_client_.get());
    130 
    131   resource_provider_ =
    132       ResourceProvider::Create(output_surface_.get(), NULL, 0, false, 1);
    133 
    134   texture_mailbox_deleter_ = make_scoped_ptr(new TextureMailboxDeleter);
    135 
    136   renderer_ = GLRenderer::Create(this,
    137                                  &settings_,
    138                                  output_surface_.get(),
    139                                  resource_provider_.get(),
    140                                  texture_mailbox_deleter_.get(),
    141                                  0).PassAs<DirectRenderer>();
    142 }
    143 
    144 void PixelTest::ForceExpandedViewport(gfx::Size surface_expansion) {
    145   static_cast<PixelTestOutputSurface*>(output_surface_.get())
    146       ->set_surface_expansion_size(surface_expansion);
    147   SoftwareOutputDevice* device = output_surface_->software_device();
    148   if (device) {
    149     static_cast<PixelTestSoftwareOutputDevice*>(device)
    150         ->set_surface_expansion_size(surface_expansion);
    151   }
    152 }
    153 
    154 void PixelTest::ForceViewportOffset(gfx::Vector2d viewport_offset) {
    155   external_device_viewport_offset_ = viewport_offset;
    156 }
    157 
    158 void PixelTest::ForceDeviceClip(gfx::Rect clip) {
    159   external_device_clip_rect_ = clip;
    160 }
    161 
    162 void PixelTest::EnableExternalStencilTest() {
    163   static_cast<PixelTestOutputSurface*>(output_surface_.get())
    164       ->set_has_external_stencil_test(true);
    165 }
    166 
    167 void PixelTest::SetUpSoftwareRenderer() {
    168   scoped_ptr<SoftwareOutputDevice> device(new PixelTestSoftwareOutputDevice());
    169   output_surface_.reset(new PixelTestOutputSurface(device.Pass()));
    170   output_surface_->BindToClient(output_surface_client_.get());
    171   resource_provider_ =
    172       ResourceProvider::Create(output_surface_.get(), NULL, 0, false, 1);
    173   renderer_ = SoftwareRenderer::Create(
    174       this, &settings_, output_surface_.get(), resource_provider_.get())
    175                   .PassAs<DirectRenderer>();
    176 }
    177 
    178 }  // namespace cc
    179