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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "cc/test/test_in_process_context_provider.h"
#include "base/lazy_instance.h"
#include "cc/resources/platform_color.h"
#include "gpu/GLES2/gl2extchromium.h"
#include "gpu/command_buffer/client/gl_in_process_context.h"
#include "gpu/command_buffer/client/gles2_implementation.h"
#include "gpu/command_buffer/client/gles2_lib.h"
#include "gpu/command_buffer/common/gles2_cmd_utils.h"
#include "gpu/skia_bindings/gl_bindings_skia_cmd_buffer.h"
#include "third_party/khronos/GLES2/gl2.h"
#include "third_party/khronos/GLES2/gl2ext.h"
#include "third_party/skia/include/gpu/GrContext.h"
#include "third_party/skia/include/gpu/gl/GrGLInterface.h"
#include "ui/gfx/native_widget_types.h"
namespace cc {
// static
scoped_ptr<gpu::GLInProcessContext> CreateTestInProcessContext(
TestGpuMemoryBufferManager* gpu_memory_buffer_manager,
TestImageFactory* image_factory) {
const bool is_offscreen = true;
const bool share_resources = true;
gpu::gles2::ContextCreationAttribHelper attribs;
attribs.alpha_size = 8;
attribs.blue_size = 8;
attribs.green_size = 8;
attribs.red_size = 8;
attribs.depth_size = 24;
attribs.stencil_size = 8;
attribs.samples = 0;
attribs.sample_buffers = 0;
attribs.fail_if_major_perf_caveat = false;
attribs.bind_generates_resource = false;
gfx::GpuPreference gpu_preference = gfx::PreferDiscreteGpu;
scoped_ptr<gpu::GLInProcessContext> context =
make_scoped_ptr(gpu::GLInProcessContext::Create(
NULL,
NULL,
is_offscreen,
gfx::kNullAcceleratedWidget,
gfx::Size(1, 1),
NULL,
share_resources,
attribs,
gpu_preference,
gpu::GLInProcessContextSharedMemoryLimits(),
gpu_memory_buffer_manager,
image_factory));
DCHECK(context);
return context.Pass();
}
scoped_ptr<gpu::GLInProcessContext> CreateTestInProcessContext() {
return CreateTestInProcessContext(nullptr, nullptr);
}
TestInProcessContextProvider::TestInProcessContextProvider()
: context_(CreateTestInProcessContext(&gpu_memory_buffer_manager_,
&image_factory_)) {
}
TestInProcessContextProvider::~TestInProcessContextProvider() {
}
bool TestInProcessContextProvider::BindToCurrentThread() { return true; }
gpu::gles2::GLES2Interface* TestInProcessContextProvider::ContextGL() {
return context_->GetImplementation();
}
gpu::ContextSupport* TestInProcessContextProvider::ContextSupport() {
return context_->GetImplementation();
}
namespace {
// Singleton used to initialize and terminate the gles2 library.
class GLES2Initializer {
public:
GLES2Initializer() { ::gles2::Initialize(); }
~GLES2Initializer() { ::gles2::Terminate(); }
private:
DISALLOW_COPY_AND_ASSIGN(GLES2Initializer);
};
static base::LazyInstance<GLES2Initializer> g_gles2_initializer =
LAZY_INSTANCE_INITIALIZER;
} // namespace
static void BindGrContextCallback(const GrGLInterface* interface) {
TestInProcessContextProvider* context_provider =
reinterpret_cast<TestInProcessContextProvider*>(interface->fCallbackData);
gles2::SetGLContext(context_provider->ContextGL());
}
class GrContext* TestInProcessContextProvider::GrContext() {
if (gr_context_)
return gr_context_.get();
// The GrGLInterface factory will make GL calls using the C GLES2 interface.
// Make sure the gles2 library is initialized first on exactly one thread.
g_gles2_initializer.Get();
gles2::SetGLContext(ContextGL());
skia::RefPtr<GrGLInterface> interface =
skia::AdoptRef(skia_bindings::CreateCommandBufferSkiaGLBinding());
interface->fCallback = BindGrContextCallback;
interface->fCallbackData = reinterpret_cast<GrGLInterfaceCallbackData>(this);
gr_context_ = skia::AdoptRef(GrContext::Create(
kOpenGL_GrBackend, reinterpret_cast<GrBackendContext>(interface.get())));
return gr_context_.get();
}
void TestInProcessContextProvider::InvalidateGrContext(uint32_t state) {
if (gr_context_)
gr_context_.get()->resetContext(state);
}
void TestInProcessContextProvider::SetupLock() {
}
base::Lock* TestInProcessContextProvider::GetLock() {
return &context_lock_;
}
ContextProvider::Capabilities
TestInProcessContextProvider::ContextCapabilities() {
ContextProvider::Capabilities capabilities;
capabilities.gpu.image = true;
capabilities.gpu.texture_rectangle = true;
capabilities.gpu.sync_query = true;
switch (PlatformColor::Format()) {
case PlatformColor::SOURCE_FORMAT_RGBA8:
capabilities.gpu.texture_format_bgra8888 = false;
break;
case PlatformColor::SOURCE_FORMAT_BGRA8:
capabilities.gpu.texture_format_bgra8888 = true;
break;
}
return capabilities;
}
void TestInProcessContextProvider::VerifyContexts() {}
void TestInProcessContextProvider::DeleteCachedResources() {
if (gr_context_)
gr_context_->freeGpuResources();
}
bool TestInProcessContextProvider::DestroyedOnMainThread() { return false; }
void TestInProcessContextProvider::SetLostContextCallback(
const LostContextCallback& lost_context_callback) {}
void TestInProcessContextProvider::SetMemoryPolicyChangedCallback(
const MemoryPolicyChangedCallback& memory_policy_changed_callback) {}
} // namespace cc
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