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      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_in_process_context_provider.h"
     27 #include "cc/test/test_shared_bitmap_manager.h"
     28 #include "testing/gtest/include/gtest/gtest.h"
     29 
     30 namespace cc {
     31 
     32 PixelTest::PixelTest()
     33     : device_viewport_size_(gfx::Size(200, 200)),
     34       disable_picture_quad_image_filtering_(false),
     35       output_surface_client_(new FakeOutputSurfaceClient) {}
     36 
     37 PixelTest::~PixelTest() {}
     38 
     39 bool PixelTest::RunPixelTest(RenderPassList* pass_list,
     40                              const base::FilePath& ref_file,
     41                              const PixelComparator& comparator) {
     42   return RunPixelTestWithReadbackTarget(pass_list,
     43                                         pass_list->back(),
     44                                         ref_file,
     45                                         comparator);
     46 }
     47 
     48 bool PixelTest::RunPixelTestWithReadbackTarget(
     49     RenderPassList* pass_list,
     50     RenderPass* target,
     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   float device_scale_factor = 1.f;
     61   gfx::Rect device_viewport_rect =
     62       gfx::Rect(device_viewport_size_) + external_device_viewport_offset_;
     63   gfx::Rect device_clip_rect = external_device_clip_rect_.IsEmpty()
     64                                    ? device_viewport_rect
     65                                    : external_device_clip_rect_;
     66   renderer_->DecideRenderPassAllocationsForFrame(*pass_list);
     67   renderer_->DrawFrame(pass_list,
     68                        device_scale_factor,
     69                        device_viewport_rect,
     70                        device_clip_rect,
     71                        disable_picture_quad_image_filtering_);
     72 
     73   // Wait for the readback to complete.
     74   resource_provider_->Finish();
     75   run_loop.Run();
     76 
     77   return PixelsMatchReference(ref_file, comparator);
     78 }
     79 
     80 void PixelTest::ReadbackResult(base::Closure quit_run_loop,
     81                                scoped_ptr<CopyOutputResult> result) {
     82   ASSERT_TRUE(result->HasBitmap());
     83   result_bitmap_ = result->TakeBitmap().Pass();
     84   quit_run_loop.Run();
     85 }
     86 
     87 bool PixelTest::PixelsMatchReference(const base::FilePath& ref_file,
     88                                      const PixelComparator& comparator) {
     89   base::FilePath test_data_dir;
     90   if (!PathService::Get(CCPaths::DIR_TEST_DATA, &test_data_dir))
     91     return false;
     92 
     93   // If this is false, we didn't set up a readback on a render pass.
     94   if (!result_bitmap_)
     95     return false;
     96 
     97   CommandLine* cmd = CommandLine::ForCurrentProcess();
     98   if (cmd->HasSwitch(switches::kCCRebaselinePixeltests))
     99     return WritePNGFile(*result_bitmap_, test_data_dir.Append(ref_file), true);
    100 
    101   return MatchesPNGFile(
    102       *result_bitmap_, test_data_dir.Append(ref_file), comparator);
    103 }
    104 
    105 void PixelTest::SetUpGLRenderer(bool use_skia_gpu_backend) {
    106   enable_pixel_output_.reset(new gfx::DisableNullDrawGLBindings);
    107 
    108   output_surface_.reset(
    109       new PixelTestOutputSurface(new TestInProcessContextProvider));
    110   output_surface_->BindToClient(output_surface_client_.get());
    111 
    112   shared_bitmap_manager_.reset(new TestSharedBitmapManager());
    113   resource_provider_ = ResourceProvider::Create(
    114       output_surface_.get(), shared_bitmap_manager_.get(), 0, false, 1, false);
    115 
    116   texture_mailbox_deleter_ = make_scoped_ptr(
    117       new TextureMailboxDeleter(base::MessageLoopProxy::current()));
    118 
    119   renderer_ = GLRenderer::Create(this,
    120                                  &settings_,
    121                                  output_surface_.get(),
    122                                  resource_provider_.get(),
    123                                  texture_mailbox_deleter_.get(),
    124                                  0).PassAs<DirectRenderer>();
    125 }
    126 
    127 void PixelTest::ForceExpandedViewport(const gfx::Size& surface_expansion) {
    128   static_cast<PixelTestOutputSurface*>(output_surface_.get())
    129       ->set_surface_expansion_size(surface_expansion);
    130   SoftwareOutputDevice* device = output_surface_->software_device();
    131   if (device) {
    132     static_cast<PixelTestSoftwareOutputDevice*>(device)
    133         ->set_surface_expansion_size(surface_expansion);
    134   }
    135 }
    136 
    137 void PixelTest::ForceViewportOffset(const gfx::Vector2d& viewport_offset) {
    138   external_device_viewport_offset_ = viewport_offset;
    139 }
    140 
    141 void PixelTest::ForceDeviceClip(const gfx::Rect& clip) {
    142   external_device_clip_rect_ = clip;
    143 }
    144 
    145 void PixelTest::EnableExternalStencilTest() {
    146   static_cast<PixelTestOutputSurface*>(output_surface_.get())
    147       ->set_has_external_stencil_test(true);
    148 }
    149 
    150 void PixelTest::RunOnDemandRasterTask(Task* on_demand_raster_task) {
    151   TaskGraphRunner task_graph_runner;
    152   NamespaceToken on_demand_task_namespace =
    153       task_graph_runner.GetNamespaceToken();
    154 
    155   // Construct a task graph that contains this single raster task.
    156   TaskGraph graph;
    157   graph.nodes.push_back(
    158       TaskGraph::Node(on_demand_raster_task,
    159                       RasterWorkerPool::kOnDemandRasterTaskPriority,
    160                       0u));
    161 
    162   // Schedule task and wait for task graph runner to finish running it.
    163   task_graph_runner.ScheduleTasks(on_demand_task_namespace, &graph);
    164   task_graph_runner.RunUntilIdle();
    165 
    166   // Collect task now that it has finished running.
    167   Task::Vector completed_tasks;
    168   task_graph_runner.CollectCompletedTasks(on_demand_task_namespace,
    169                                           &completed_tasks);
    170   DCHECK_EQ(1u, completed_tasks.size());
    171   DCHECK_EQ(completed_tasks[0], on_demand_raster_task);
    172 }
    173 
    174 void PixelTest::SetUpSoftwareRenderer() {
    175   scoped_ptr<SoftwareOutputDevice> device(new PixelTestSoftwareOutputDevice());
    176   output_surface_.reset(new PixelTestOutputSurface(device.Pass()));
    177   output_surface_->BindToClient(output_surface_client_.get());
    178   shared_bitmap_manager_.reset(new TestSharedBitmapManager());
    179   resource_provider_ = ResourceProvider::Create(
    180       output_surface_.get(), shared_bitmap_manager_.get(), 0, false, 1, false);
    181   renderer_ =
    182       SoftwareRenderer::Create(
    183           this, &settings_, output_surface_.get(), resource_provider_.get())
    184           .PassAs<DirectRenderer>();
    185 }
    186 
    187 }  // namespace cc
    188