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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/output/output_surface.h"
      6 
      7 #include "base/test/test_simple_task_runner.h"
      8 #include "cc/output/managed_memory_policy.h"
      9 #include "cc/output/output_surface_client.h"
     10 #include "cc/output/software_output_device.h"
     11 #include "cc/test/begin_frame_args_test.h"
     12 #include "cc/test/fake_output_surface.h"
     13 #include "cc/test/fake_output_surface_client.h"
     14 #include "cc/test/scheduler_test_common.h"
     15 #include "cc/test/test_context_provider.h"
     16 #include "cc/test/test_web_graphics_context_3d.h"
     17 #include "gpu/GLES2/gl2extchromium.h"
     18 #include "testing/gtest/include/gtest/gtest.h"
     19 #include "ui/gfx/frame_time.h"
     20 
     21 namespace cc {
     22 namespace {
     23 
     24 class TestOutputSurface : public OutputSurface {
     25  public:
     26   explicit TestOutputSurface(scoped_refptr<ContextProvider> context_provider)
     27       : OutputSurface(context_provider) {}
     28 
     29   explicit TestOutputSurface(scoped_ptr<SoftwareOutputDevice> software_device)
     30       : OutputSurface(software_device.Pass()) {}
     31 
     32   TestOutputSurface(scoped_refptr<ContextProvider> context_provider,
     33                     scoped_ptr<SoftwareOutputDevice> software_device)
     34       : OutputSurface(context_provider, software_device.Pass()) {}
     35 
     36   bool InitializeNewContext3d(
     37       scoped_refptr<ContextProvider> new_context_provider) {
     38     return InitializeAndSetContext3d(new_context_provider);
     39   }
     40 
     41   using OutputSurface::ReleaseGL;
     42 
     43   void CommitVSyncParametersForTesting(base::TimeTicks timebase,
     44                                        base::TimeDelta interval) {
     45     CommitVSyncParameters(timebase, interval);
     46   }
     47 
     48   void BeginFrameForTesting() {
     49     client_->BeginFrame(CreateExpiredBeginFrameArgsForTesting());
     50   }
     51 
     52   void DidSwapBuffersForTesting() { client_->DidSwapBuffers(); }
     53 
     54   void OnSwapBuffersCompleteForTesting() { client_->DidSwapBuffersComplete(); }
     55 
     56  protected:
     57 };
     58 
     59 class TestSoftwareOutputDevice : public SoftwareOutputDevice {
     60  public:
     61   TestSoftwareOutputDevice();
     62   virtual ~TestSoftwareOutputDevice();
     63 
     64   // Overriden from cc:SoftwareOutputDevice
     65   virtual void DiscardBackbuffer() OVERRIDE;
     66   virtual void EnsureBackbuffer() OVERRIDE;
     67 
     68   int discard_backbuffer_count() { return discard_backbuffer_count_; }
     69   int ensure_backbuffer_count() { return ensure_backbuffer_count_; }
     70 
     71  private:
     72   int discard_backbuffer_count_;
     73   int ensure_backbuffer_count_;
     74 };
     75 
     76 TestSoftwareOutputDevice::TestSoftwareOutputDevice()
     77     : discard_backbuffer_count_(0), ensure_backbuffer_count_(0) {}
     78 
     79 TestSoftwareOutputDevice::~TestSoftwareOutputDevice() {}
     80 
     81 void TestSoftwareOutputDevice::DiscardBackbuffer() {
     82   SoftwareOutputDevice::DiscardBackbuffer();
     83   discard_backbuffer_count_++;
     84 }
     85 
     86 void TestSoftwareOutputDevice::EnsureBackbuffer() {
     87   SoftwareOutputDevice::EnsureBackbuffer();
     88   ensure_backbuffer_count_++;
     89 }
     90 
     91 TEST(OutputSurfaceTest, ClientPointerIndicatesBindToClientSuccess) {
     92   scoped_refptr<TestContextProvider> provider = TestContextProvider::Create();
     93   TestOutputSurface output_surface(provider);
     94   EXPECT_FALSE(output_surface.HasClient());
     95 
     96   FakeOutputSurfaceClient client;
     97   EXPECT_TRUE(output_surface.BindToClient(&client));
     98   EXPECT_TRUE(output_surface.HasClient());
     99   EXPECT_FALSE(client.deferred_initialize_called());
    100 
    101   // Verify DidLoseOutputSurface callback is hooked up correctly.
    102   EXPECT_FALSE(client.did_lose_output_surface_called());
    103   output_surface.context_provider()->ContextGL()->LoseContextCHROMIUM(
    104       GL_GUILTY_CONTEXT_RESET_ARB, GL_INNOCENT_CONTEXT_RESET_ARB);
    105   output_surface.context_provider()->ContextGL()->Flush();
    106   EXPECT_TRUE(client.did_lose_output_surface_called());
    107 }
    108 
    109 TEST(OutputSurfaceTest, ClientPointerIndicatesBindToClientFailure) {
    110   scoped_refptr<TestContextProvider> context_provider =
    111       TestContextProvider::Create();
    112 
    113   // Lose the context so BindToClient fails.
    114   context_provider->UnboundTestContext3d()->set_context_lost(true);
    115 
    116   TestOutputSurface output_surface(context_provider);
    117   EXPECT_FALSE(output_surface.HasClient());
    118 
    119   FakeOutputSurfaceClient client;
    120   EXPECT_FALSE(output_surface.BindToClient(&client));
    121   EXPECT_FALSE(output_surface.HasClient());
    122 }
    123 
    124 class OutputSurfaceTestInitializeNewContext3d : public ::testing::Test {
    125  public:
    126   OutputSurfaceTestInitializeNewContext3d()
    127       : context_provider_(TestContextProvider::Create()),
    128         output_surface_(
    129             scoped_ptr<SoftwareOutputDevice>(new SoftwareOutputDevice)),
    130         client_(&output_surface_) {}
    131 
    132  protected:
    133   void BindOutputSurface() {
    134     EXPECT_TRUE(output_surface_.BindToClient(&client_));
    135     EXPECT_TRUE(output_surface_.HasClient());
    136   }
    137 
    138   void InitializeNewContextExpectFail() {
    139     EXPECT_FALSE(output_surface_.InitializeNewContext3d(context_provider_));
    140     EXPECT_TRUE(output_surface_.HasClient());
    141 
    142     EXPECT_FALSE(output_surface_.context_provider());
    143     EXPECT_TRUE(output_surface_.software_device());
    144   }
    145 
    146   scoped_refptr<TestContextProvider> context_provider_;
    147   TestOutputSurface output_surface_;
    148   FakeOutputSurfaceClient client_;
    149 };
    150 
    151 TEST_F(OutputSurfaceTestInitializeNewContext3d, Success) {
    152   BindOutputSurface();
    153   EXPECT_FALSE(client_.deferred_initialize_called());
    154 
    155   EXPECT_TRUE(output_surface_.InitializeNewContext3d(context_provider_));
    156   EXPECT_TRUE(client_.deferred_initialize_called());
    157   EXPECT_EQ(context_provider_, output_surface_.context_provider());
    158 
    159   EXPECT_FALSE(client_.did_lose_output_surface_called());
    160   context_provider_->ContextGL()->LoseContextCHROMIUM(
    161       GL_GUILTY_CONTEXT_RESET_ARB, GL_INNOCENT_CONTEXT_RESET_ARB);
    162   context_provider_->ContextGL()->Flush();
    163   EXPECT_TRUE(client_.did_lose_output_surface_called());
    164 
    165   output_surface_.ReleaseGL();
    166   EXPECT_FALSE(output_surface_.context_provider());
    167 }
    168 
    169 TEST_F(OutputSurfaceTestInitializeNewContext3d, Context3dMakeCurrentFails) {
    170   BindOutputSurface();
    171 
    172   context_provider_->UnboundTestContext3d()->set_context_lost(true);
    173   InitializeNewContextExpectFail();
    174 }
    175 
    176 TEST(OutputSurfaceTest, MemoryAllocation) {
    177   scoped_refptr<TestContextProvider> context_provider =
    178       TestContextProvider::Create();
    179 
    180   TestOutputSurface output_surface(context_provider);
    181 
    182   FakeOutputSurfaceClient client;
    183   EXPECT_TRUE(output_surface.BindToClient(&client));
    184 
    185   ManagedMemoryPolicy policy(0);
    186   policy.bytes_limit_when_visible = 1234;
    187   policy.priority_cutoff_when_visible =
    188       gpu::MemoryAllocation::CUTOFF_ALLOW_REQUIRED_ONLY;
    189 
    190   context_provider->SetMemoryAllocation(policy);
    191   EXPECT_EQ(1234u, client.memory_policy().bytes_limit_when_visible);
    192   EXPECT_EQ(gpu::MemoryAllocation::CUTOFF_ALLOW_REQUIRED_ONLY,
    193             client.memory_policy().priority_cutoff_when_visible);
    194 
    195   policy.priority_cutoff_when_visible =
    196       gpu::MemoryAllocation::CUTOFF_ALLOW_EVERYTHING;
    197   context_provider->SetMemoryAllocation(policy);
    198   EXPECT_EQ(gpu::MemoryAllocation::CUTOFF_ALLOW_EVERYTHING,
    199             client.memory_policy().priority_cutoff_when_visible);
    200 
    201   // 0 bytes limit should be ignored.
    202   policy.bytes_limit_when_visible = 0;
    203   context_provider->SetMemoryAllocation(policy);
    204   EXPECT_EQ(1234u, client.memory_policy().bytes_limit_when_visible);
    205 }
    206 
    207 TEST(OutputSurfaceTest, SoftwareOutputDeviceBackbufferManagement) {
    208   TestSoftwareOutputDevice* software_output_device =
    209       new TestSoftwareOutputDevice();
    210 
    211   // TestOutputSurface now owns software_output_device and has responsibility to
    212   // free it.
    213   scoped_ptr<TestSoftwareOutputDevice> p(software_output_device);
    214   TestOutputSurface output_surface(p.PassAs<SoftwareOutputDevice>());
    215 
    216   EXPECT_EQ(0, software_output_device->ensure_backbuffer_count());
    217   EXPECT_EQ(0, software_output_device->discard_backbuffer_count());
    218 
    219   output_surface.EnsureBackbuffer();
    220   EXPECT_EQ(1, software_output_device->ensure_backbuffer_count());
    221   EXPECT_EQ(0, software_output_device->discard_backbuffer_count());
    222   output_surface.DiscardBackbuffer();
    223 
    224   EXPECT_EQ(1, software_output_device->ensure_backbuffer_count());
    225   EXPECT_EQ(1, software_output_device->discard_backbuffer_count());
    226 }
    227 
    228 }  // namespace
    229 }  // namespace cc
    230