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// Copyright (c) 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.
#ifndef UI_GL_ASYNC_PIXEL_TRANSFER_DELEGATE_EGL_H_
#define UI_GL_ASYNC_PIXEL_TRANSFER_DELEGATE_EGL_H_
#include <list>
#include "ui/gl/async_pixel_transfer_delegate.h"
namespace gfx {
class ScopedSafeSharedMemory;
class TextureUploadStats;
class TransferStateInternal;
// Class which handles async pixel transfers using EGLImageKHR and another
// upload thread
class AsyncPixelTransferDelegateEGL
: public AsyncPixelTransferDelegate,
public base::SupportsWeakPtr<AsyncPixelTransferDelegateEGL> {
public:
AsyncPixelTransferDelegateEGL();
virtual ~AsyncPixelTransferDelegateEGL();
// Implement AsyncPixelTransferDelegate:
virtual AsyncPixelTransferState* CreatePixelTransferState(
GLuint texture_id,
const AsyncTexImage2DParams& define_params) OVERRIDE;
virtual bool BindCompletedAsyncTransfers() OVERRIDE;
virtual void AsyncNotifyCompletion(
const AsyncMemoryParams& mem_params,
const CompletionCallback& callback) OVERRIDE;
virtual void AsyncTexImage2D(
AsyncPixelTransferState* state,
const AsyncTexImage2DParams& tex_params,
const AsyncMemoryParams& mem_params,
const base::Closure& bind_callback) OVERRIDE;
virtual void AsyncTexSubImage2D(
AsyncPixelTransferState* state,
const AsyncTexSubImage2DParams& tex_params,
const AsyncMemoryParams& mem_params) OVERRIDE;
virtual void WaitForTransferCompletion(
AsyncPixelTransferState* state) OVERRIDE;
virtual uint32 GetTextureUploadCount() OVERRIDE;
virtual base::TimeDelta GetTotalTextureUploadTime() OVERRIDE;
virtual bool ProcessMorePendingTransfers() OVERRIDE;
virtual bool NeedsProcessMorePendingTransfers() OVERRIDE;
private:
static void PerformNotifyCompletion(
AsyncMemoryParams mem_params,
ScopedSafeSharedMemory* safe_shared_memory,
const CompletionCallback& callback);
static void PerformAsyncTexImage2D(
TransferStateInternal* state,
AsyncTexImage2DParams tex_params,
AsyncMemoryParams mem_params,
ScopedSafeSharedMemory* safe_shared_memory);
static void PerformAsyncTexSubImage2D(
TransferStateInternal* state,
AsyncTexSubImage2DParams tex_params,
AsyncMemoryParams mem_params,
ScopedSafeSharedMemory* safe_shared_memory,
scoped_refptr<TextureUploadStats> texture_upload_stats);
// Returns true if a work-around was used.
bool WorkAroundAsyncTexImage2D(
AsyncPixelTransferState* state,
const AsyncTexImage2DParams& tex_params,
const AsyncMemoryParams& mem_params,
const base::Closure& bind_callback);
bool WorkAroundAsyncTexSubImage2D(
AsyncPixelTransferState* state,
const AsyncTexSubImage2DParams& tex_params,
const AsyncMemoryParams& mem_params);
typedef std::list<base::WeakPtr<AsyncPixelTransferState> > TransferQueue;
TransferQueue pending_allocations_;
scoped_refptr<TextureUploadStats> texture_upload_stats_;
bool is_imagination_;
bool is_qualcomm_;
DISALLOW_COPY_AND_ASSIGN(AsyncPixelTransferDelegateEGL);
};
} // namespace gfx
#endif // UI_GL_ASYNC_PIXEL_TRANSFER_DELEGATE_EGL_H_
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