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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_COMMON_GPU_STREAM_TEXTURE_MANAGER_ANDROID_H_
#define CONTENT_COMMON_GPU_STREAM_TEXTURE_MANAGER_ANDROID_H_
#include "base/callback.h"
#include "base/id_map.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "content/common/android/surface_texture_peer.h"
#include "gpu/command_buffer/service/stream_texture.h"
#include "gpu/command_buffer/service/stream_texture_manager.h"
struct GpuStreamTextureMsg_MatrixChanged_Params;
namespace gfx {
class Size;
class SurfaceTexture;
}
namespace content {
class GpuChannel;
// Class for managing the stream texture.
class StreamTextureManagerAndroid : public gpu::StreamTextureManager {
public:
StreamTextureManagerAndroid(GpuChannel* channel);
virtual ~StreamTextureManagerAndroid();
// implement gpu::StreamTextureManager:
virtual uint32 CreateStreamTexture(uint32 service_id,
uint32 client_id) OVERRIDE;
virtual void DestroyStreamTexture(uint32 service_id) OVERRIDE;
virtual gpu::StreamTexture* LookupStreamTexture(uint32 service_id) OVERRIDE;
// Methods invoked from GpuChannel.
void RegisterStreamTextureProxy(int32 stream_id, int32 route_id);
void EstablishStreamTexture(
int32 stream_id, int32 primary_id, int32 secondary_id);
void SetStreamTextureSize(int32 stream_id, const gfx::Size& size);
// Send new transform matrix.
void SendMatrixChanged(int route_id,
const GpuStreamTextureMsg_MatrixChanged_Params& params);
private:
// The stream texture class for android.
class StreamTextureAndroid
: public gpu::StreamTexture,
public base::SupportsWeakPtr<StreamTextureAndroid> {
public:
StreamTextureAndroid(GpuChannel* channel, int service_id);
virtual ~StreamTextureAndroid();
virtual void Update() OVERRIDE;
virtual gfx::Size GetSize() OVERRIDE;
scoped_refptr<gfx::SurfaceTexture> surface_texture() {
return surface_texture_;
}
// Called when a new frame is available.
void OnFrameAvailable(int route_id);
// Set surface texture size.
void SetSize(const gfx::Size& size) { size_ = size; }
// Callback function when transform matrix of the surface texture
// has changed.
typedef base::Callback<
void(const GpuStreamTextureMsg_MatrixChanged_Params&)>
MatrixChangedCB;
void set_matrix_changed_callback(const MatrixChangedCB& callback) {
matrix_callback_ = callback;
}
private:
scoped_refptr<gfx::SurfaceTexture> surface_texture_;
// Current transform matrix of the surface texture.
float current_matrix_[16];
// Current size of the surface texture.
gfx::Size size_;
// Whether the surface texture has been updated.
bool has_updated_;
MatrixChangedCB matrix_callback_;
GpuChannel* channel_;
DISALLOW_COPY_AND_ASSIGN(StreamTextureAndroid);
};
GpuChannel* channel_;
typedef IDMap<StreamTextureAndroid, IDMapOwnPointer> TextureMap;
TextureMap textures_;
// Map for more convenient lookup.
typedef IDMap<gpu::StreamTexture, IDMapExternalPointer> TextureServiceIdMap;
TextureServiceIdMap textures_from_service_id_;
DISALLOW_COPY_AND_ASSIGN(StreamTextureManagerAndroid);
};
} // namespace content
#endif // CONTENT_COMMON_GPU_STREAM_TEXTURE_MANAGER_ANDROID_H_
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