cc/test/test_in_process_context_provider.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/test_in_process_context_provider.h"
   6
   7 #include "base/lazy_instance.h"
   8 #include "gpu/GLES2/gl2extchromium.h"
   9 #include "gpu/command_buffer/client/gl_in_process_context.h"
  10 #include "gpu/command_buffer/client/gles2_implementation.h"
  11 #include "gpu/command_buffer/client/gles2_lib.h"
  12 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
  13 #include "gpu/skia_bindings/gl_bindings_skia_cmd_buffer.h"
  14 #include "third_party/khronos/GLES2/gl2.h"
  15 #include "third_party/khronos/GLES2/gl2ext.h"
  16 #include "third_party/skia/include/gpu/GrContext.h"
  17 #include "third_party/skia/include/gpu/gl/GrGLInterface.h"
  18 #include "ui/gfx/native_widget_types.h"
  19
  20 namespace cc {
  21
  22 // static
  23 scoped_ptr<gpu::GLInProcessContext> CreateTestInProcessContext(
  24     TestGpuMemoryBufferManager* gpu_memory_buffer_manager,
  25     TestImageFactory* image_factory) {
  26   const bool is_offscreen = true;
  27   const bool share_resources = true;
  28   gpu::gles2::ContextCreationAttribHelper attribs;
  29   attribs.alpha_size = 8;
  30   attribs.blue_size = 8;
  31   attribs.green_size = 8;
  32   attribs.red_size = 8;
  33   attribs.depth_size = 24;
  34   attribs.stencil_size = 8;
  35   attribs.samples = 0;
  36   attribs.sample_buffers = 0;
  37   attribs.fail_if_major_perf_caveat = false;
  38   attribs.bind_generates_resource = false;
  39   gfx::GpuPreference gpu_preference = gfx::PreferDiscreteGpu;
  40
  41   scoped_ptr<gpu::GLInProcessContext> context =
  42       make_scoped_ptr(gpu::GLInProcessContext::Create(
  43           NULL,
  44           NULL,
  45           is_offscreen,
  46           gfx::kNullAcceleratedWidget,
  47           gfx::Size(1, 1),
  48           NULL,
  49           share_resources,
  50           attribs,
  51           gpu_preference,
  52           gpu::GLInProcessContextSharedMemoryLimits(),
  53           gpu_memory_buffer_manager,
  54           image_factory));
  55
  56   DCHECK(context);
  57   return context.Pass();
  58 }
  59
  60 scoped_ptr<gpu::GLInProcessContext> CreateTestInProcessContext() {
  61   return CreateTestInProcessContext(nullptr, nullptr);
  62 }
  63
  64 TestInProcessContextProvider::TestInProcessContextProvider()
  65     : context_(CreateTestInProcessContext(&gpu_memory_buffer_manager_,
  66                                           &image_factory_)) {
  67 }
  68
  69 TestInProcessContextProvider::~TestInProcessContextProvider() {
  70 }
  71
  72 bool TestInProcessContextProvider::BindToCurrentThread() { return true; }
  73
  74 gpu::gles2::GLES2Interface* TestInProcessContextProvider::ContextGL() {
  75   return context_->GetImplementation();
  76 }
  77
  78 gpu::ContextSupport* TestInProcessContextProvider::ContextSupport() {
  79   return context_->GetImplementation();
  80 }
  81
  82 namespace {
  83
  84 // Singleton used to initialize and terminate the gles2 library.
  85 class GLES2Initializer {
  86  public:
  87   GLES2Initializer() { ::gles2::Initialize(); }
  88
  89   ~GLES2Initializer() { ::gles2::Terminate(); }
  90
  91  private:
  92   DISALLOW_COPY_AND_ASSIGN(GLES2Initializer);
  93 };
  94
  95 static base::LazyInstance<GLES2Initializer> g_gles2_initializer =
  96     LAZY_INSTANCE_INITIALIZER;
  97
  98 }  // namespace
  99
 100 static void BindGrContextCallback(const GrGLInterface* interface) {
 101   TestInProcessContextProvider* context_provider =
 102       reinterpret_cast<TestInProcessContextProvider*>(interface->fCallbackData);
 103
 104   gles2::SetGLContext(context_provider->ContextGL());
 105 }
 106
 107 class GrContext* TestInProcessContextProvider::GrContext() {
 108   if (gr_context_)
 109     return gr_context_.get();
 110
 111   // The GrGLInterface factory will make GL calls using the C GLES2 interface.
 112   // Make sure the gles2 library is initialized first on exactly one thread.
 113   g_gles2_initializer.Get();
 114   gles2::SetGLContext(ContextGL());
 115
 116   skia::RefPtr<GrGLInterface> interface =
 117       skia::AdoptRef(skia_bindings::CreateCommandBufferSkiaGLBinding());
 118   interface->fCallback = BindGrContextCallback;
 119   interface->fCallbackData = reinterpret_cast<GrGLInterfaceCallbackData>(this);
 120
 121   gr_context_ = skia::AdoptRef(GrContext::Create(
 122       kOpenGL_GrBackend, reinterpret_cast<GrBackendContext>(interface.get())));
 123
 124   return gr_context_.get();
 125 }
 126
 127 ContextProvider::Capabilities
 128 TestInProcessContextProvider::ContextCapabilities() {
 129   ContextProvider::Capabilities capabilities;
 130   capabilities.gpu.image = true;
 131   capabilities.gpu.texture_rectangle = true;
 132
 133   return capabilities;
 134 }
 135
 136 bool TestInProcessContextProvider::IsContextLost() { return false; }
 137
 138 void TestInProcessContextProvider::VerifyContexts() {}
 139
 140 void TestInProcessContextProvider::DeleteCachedResources() {
 141   if (gr_context_)
 142     gr_context_->freeGpuResources();
 143 }
 144
 145 bool TestInProcessContextProvider::DestroyedOnMainThread() { return false; }
 146
 147 void TestInProcessContextProvider::SetLostContextCallback(
 148     const LostContextCallback& lost_context_callback) {}
 149
 150 void TestInProcessContextProvider::SetMemoryPolicyChangedCallback(
 151     const MemoryPolicyChangedCallback& memory_policy_changed_callback) {}
 152
 153 }  // namespace cc