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// Copyright (c) 2012 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.
#ifndef CONTENT_RENDERER_PEPPER_PEPPER_PLATFORM_CONTEXT_3D_H_
#define CONTENT_RENDERER_PEPPER_PEPPER_PLATFORM_CONTEXT_3D_H_
#include "base/callback.h"
#include "base/compiler_specific.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.h"
#include "gpu/command_buffer/common/mailbox.h"
class CommandBufferProxy;
namespace gpu {
class CommandBuffer;
struct Mailbox;
} // namespace gpu
namespace content {
class ContextProviderCommandBuffer;
class GpuChannelHost;
class PlatformContext3D {
public:
explicit PlatformContext3D();
~PlatformContext3D();
// Initialize the context.
bool Init(const int32* attrib_list, PlatformContext3D* share_context);
// Retrieves the mailbox name for the front buffer backing the context.
void GetBackingMailbox(gpu::Mailbox* mailbox);
// Returns true if the backing texture is always opaque.
bool IsOpaque();
// This call will return the address of the command buffer for this context
// that is constructed in Initialize() and is valid until this context is
// destroyed.
gpu::CommandBuffer* GetCommandBuffer();
// Returns the GpuControl class that services out-of-band messages.
gpu::GpuControl* GetGpuControl();
// If the command buffer is routed in the GPU channel, return the route id.
// Otherwise return 0.
int GetCommandBufferRouteId();
// Set an optional callback that will be invoked when the context is lost
// (e.g. gpu process crash). Takes ownership of the callback.
typedef base::Callback<void(const std::string&, int)>
ConsoleMessageCallback;
void SetContextLostCallback(const base::Closure& callback);
// Set an optional callback that will be invoked when the GPU process
// sends a console message.
void SetOnConsoleMessageCallback(const ConsoleMessageCallback& callback);
// Run the callback once the channel has been flushed.
void Echo(const base::Closure& task);
private:
bool InitRaw();
void OnContextLost();
void OnConsoleMessage(const std::string& msg, int id);
scoped_refptr<GpuChannelHost> channel_;
gpu::Mailbox mailbox_;
bool has_alpha_;
CommandBufferProxyImpl* command_buffer_;
base::Closure context_lost_callback_;
ConsoleMessageCallback console_message_callback_;
base::WeakPtrFactory<PlatformContext3D> weak_ptr_factory_;
};
} // namespace content
#endif // CONTENT_RENDERER_PEPPER_PEPPER_PLATFORM_CONTEXT_3D_H_
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