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 "cc/resources/platform_color.h"
   9 #include "gpu/GLES2/gl2extchromium.h"
  10 #include "gpu/command_buffer/client/gl_in_process_context.h"
  11 #include "gpu/command_buffer/client/gles2_implementation.h"
  12 #include "gpu/command_buffer/client/gles2_lib.h"
  13 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
  14 #include "gpu/skia_bindings/gl_bindings_skia_cmd_buffer.h"
  15 #include "third_party/khronos/GLES2/gl2.h"
  16 #include "third_party/khronos/GLES2/gl2ext.h"
  17 #include "third_party/skia/include/gpu/GrContext.h"
  18 #include "third_party/skia/include/gpu/gl/GrGLInterface.h"
  19 #include "ui/gfx/native_widget_types.h"
  20
  21 namespace cc {
  22
  23 // static
  24 scoped_ptr<gpu::GLInProcessContext> CreateTestInProcessContext(
  25     TestGpuMemoryBufferManager* gpu_memory_buffer_manager,
  26     TestImageFactory* image_factory) {
  27   const bool is_offscreen = true;
  28   const bool share_resources = true;
  29   gpu::gles2::ContextCreationAttribHelper attribs;
  30   attribs.alpha_size = 8;
  31   attribs.blue_size = 8;
  32   attribs.green_size = 8;
  33   attribs.red_size = 8;
  34   attribs.depth_size = 24;
  35   attribs.stencil_size = 8;
  36   attribs.samples = 0;
  37   attribs.sample_buffers = 0;
  38   attribs.fail_if_major_perf_caveat = false;
  39   attribs.bind_generates_resource = false;
  40   gfx::GpuPreference gpu_preference = gfx::PreferDiscreteGpu;
  41
  42   scoped_ptr<gpu::GLInProcessContext> context =
  43       make_scoped_ptr(gpu::GLInProcessContext::Create(
  44           NULL,
  45           NULL,
  46           is_offscreen,
  47           gfx::kNullAcceleratedWidget,
  48           gfx::Size(1, 1),
  49           NULL,
  50           share_resources,
  51           attribs,
  52           gpu_preference,
  53           gpu::GLInProcessContextSharedMemoryLimits(),
  54           gpu_memory_buffer_manager,
  55           image_factory));
  56
  57   DCHECK(context);
  58   return context.Pass();
  59 }
  60
  61 scoped_ptr<gpu::GLInProcessContext> CreateTestInProcessContext() {
  62   return CreateTestInProcessContext(nullptr, nullptr);
  63 }
  64
  65 TestInProcessContextProvider::TestInProcessContextProvider()
  66     : context_(CreateTestInProcessContext(&gpu_memory_buffer_manager_,
  67                                           &image_factory_)) {
  68 }
  69
  70 TestInProcessContextProvider::~TestInProcessContextProvider() {
  71 }
  72
  73 bool TestInProcessContextProvider::BindToCurrentThread() { return true; }
  74
  75 gpu::gles2::GLES2Interface* TestInProcessContextProvider::ContextGL() {
  76   return context_->GetImplementation();
  77 }
  78
  79 gpu::ContextSupport* TestInProcessContextProvider::ContextSupport() {
  80   return context_->GetImplementation();
  81 }
  82
  83 namespace {
  84
  85 // Singleton used to initialize and terminate the gles2 library.
  86 class GLES2Initializer {
  87  public:
  88   GLES2Initializer() { ::gles2::Initialize(); }
  89
  90   ~GLES2Initializer() { ::gles2::Terminate(); }
  91
  92  private:
  93   DISALLOW_COPY_AND_ASSIGN(GLES2Initializer);
  94 };
  95
  96 static base::LazyInstance<GLES2Initializer> g_gles2_initializer =
  97     LAZY_INSTANCE_INITIALIZER;
  98
  99 }  // namespace
 100
 101 static void BindGrContextCallback(const GrGLInterface* interface) {
 102   TestInProcessContextProvider* context_provider =
 103       reinterpret_cast<TestInProcessContextProvider*>(interface->fCallbackData);
 104
 105   gles2::SetGLContext(context_provider->ContextGL());
 106 }
 107
 108 class GrContext* TestInProcessContextProvider::GrContext() {
 109   if (gr_context_)
 110     return gr_context_.get();
 111
 112   // The GrGLInterface factory will make GL calls using the C GLES2 interface.
 113   // Make sure the gles2 library is initialized first on exactly one thread.
 114   g_gles2_initializer.Get();
 115   gles2::SetGLContext(ContextGL());
 116
 117   skia::RefPtr<GrGLInterface> interface =
 118       skia::AdoptRef(skia_bindings::CreateCommandBufferSkiaGLBinding());
 119   interface->fCallback = BindGrContextCallback;
 120   interface->fCallbackData = reinterpret_cast<GrGLInterfaceCallbackData>(this);
 121
 122   gr_context_ = skia::AdoptRef(GrContext::Create(
 123       kOpenGL_GrBackend, reinterpret_cast<GrBackendContext>(interface.get())));
 124
 125   return gr_context_.get();
 126 }
 127
 128 void TestInProcessContextProvider::InvalidateGrContext(uint32_t state) {
 129   if (gr_context_)
 130     gr_context_.get()->resetContext(state);
 131 }
 132
 133 void TestInProcessContextProvider::SetupLock() {
 134 }
 135
 136 base::Lock* TestInProcessContextProvider::GetLock() {
 137   return &context_lock_;
 138 }
 139
 140 ContextProvider::Capabilities
 141 TestInProcessContextProvider::ContextCapabilities() {
 142   ContextProvider::Capabilities capabilities;
 143   capabilities.gpu.image = true;
 144   capabilities.gpu.texture_rectangle = true;
 145
 146   switch (PlatformColor::Format()) {
 147     case PlatformColor::SOURCE_FORMAT_RGBA8:
 148       capabilities.gpu.texture_format_bgra8888 = false;
 149       break;
 150     case PlatformColor::SOURCE_FORMAT_BGRA8:
 151       capabilities.gpu.texture_format_bgra8888 = true;
 152       break;
 153   }
 154
 155   return capabilities;
 156 }
 157
 158 void TestInProcessContextProvider::VerifyContexts() {}
 159
 160 void TestInProcessContextProvider::DeleteCachedResources() {
 161   if (gr_context_)
 162     gr_context_->freeGpuResources();
 163 }
 164
 165 bool TestInProcessContextProvider::DestroyedOnMainThread() { return false; }
 166
 167 void TestInProcessContextProvider::SetLostContextCallback(
 168     const LostContextCallback& lost_context_callback) {}
 169
 170 void TestInProcessContextProvider::SetMemoryPolicyChangedCallback(
 171     const MemoryPolicyChangedCallback& memory_policy_changed_callback) {}
 172
 173 }  // namespace cc