upstream SurfaceTextureListener and SurfaceTextureBridge class for android

content/common/gpu/stream_texture_manager_android.h

+// Copyright (c) 2011 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_
+#pragma once
+
+#include "base/id_map.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
+#include "gpu/command_buffer/service/stream_texture.h"
+#include "gpu/command_buffer/service/stream_texture_manager.h"
+
+class GpuChannel;
+
+namespace content {
+class SurfaceTextureBridge;
+}
+
+// Class for managing the stream texture.
+class StreamTextureManagerAndroid : public gpu::StreamTextureManager {

[jam, 2012/06/28 23:12:26]

nit: put this in content namespace as well

[qinmin, 2012/06/28 23:57:25]

Done.

+ public:
+  StreamTextureManagerAndroid(GpuChannel* channel);
+  virtual ~StreamTextureManagerAndroid();
+
+  // implement gpu::StreamTextureManager:
+  GLuint CreateStreamTexture(uint32 service_id,
+                             uint32 client_id) OVERRIDE;
+  void DestroyStreamTexture(uint32 service_id) OVERRIDE;
+  gpu::StreamTexture* LookupStreamTexture(uint32 service_id) OVERRIDE;
+
+ 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();
+
+    void Update() OVERRIDE;
+
+    content::SurfaceTextureBridge* bridge()
+        { return surface_texture_.get(); }
+
+   private:
+    scoped_ptr<content::SurfaceTextureBridge> surface_texture_;
+    GpuChannel* channel_;
+
+    DISALLOW_COPY_AND_ASSIGN(StreamTextureAndroid);
+  };
+
+  GpuChannel* channel_;
+
+  typedef IDMap<StreamTextureAndroid, IDMapOwnPointer> TextureMap;
+  TextureMap textures_;
+
+  DISALLOW_COPY_AND_ASSIGN(StreamTextureManagerAndroid);
+};
+
+#endif  // CONTENT_COMMON_GPU_STREAM_TEXTURE_MANAGER_ANDROID_H_