1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CONTENT_COMMON_GPU_STREAM_TEXTURE_ANDROID_H_ 6 #define CONTENT_COMMON_GPU_STREAM_TEXTURE_ANDROID_H_ 7 8 #include "base/basictypes.h" 9 #include "base/memory/weak_ptr.h" 10 #include "content/common/gpu/gpu_command_buffer_stub.h" 11 #include "ipc/ipc_listener.h" 12 #include "ui/gl/android/surface_texture.h" 13 #include "ui/gl/gl_image.h" 14 15 namespace gfx { 16 class Size; 17 } 18 19 namespace content { 20 21 class StreamTexture : public gfx::GLImage, 22 public IPC::Listener, 23 public GpuCommandBufferStub::DestructionObserver { 24 public: 25 static bool Create(GpuCommandBufferStub* owner_stub, 26 uint32 client_texture_id, 27 int stream_id); 28 29 private: 30 StreamTexture(GpuCommandBufferStub* owner_stub, 31 int32 route_id, 32 uint32 texture_id); 33 virtual ~StreamTexture(); 34 35 // gfx::GLImage implementation: 36 virtual void Destroy() OVERRIDE; 37 virtual gfx::Size GetSize() OVERRIDE; 38 virtual bool BindTexImage(unsigned target) OVERRIDE; 39 virtual void ReleaseTexImage(unsigned target) OVERRIDE; 40 virtual void WillUseTexImage() OVERRIDE; DidUseTexImage()41 virtual void DidUseTexImage() OVERRIDE {} WillModifyTexImage()42 virtual void WillModifyTexImage() OVERRIDE {} DidModifyTexImage()43 virtual void DidModifyTexImage() OVERRIDE {} 44 45 // GpuCommandBufferStub::DestructionObserver implementation. 46 virtual void OnWillDestroyStub() OVERRIDE; 47 48 // Called when a new frame is available for the SurfaceTexture. 49 void OnFrameAvailable(); 50 51 // IPC::Listener implementation: 52 virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; 53 54 // IPC message handlers: 55 void OnStartListening(); 56 void OnEstablishPeer(int32 primary_id, int32 secondary_id); OnSetSize(const gfx::Size & size)57 void OnSetSize(const gfx::Size& size) { size_ = size; } 58 59 scoped_refptr<gfx::SurfaceTexture> surface_texture_; 60 61 // Current transform matrix of the surface texture. 62 float current_matrix_[16]; 63 64 // Current size of the surface texture. 65 gfx::Size size_; 66 67 // Whether we ever bound a valid frame. 68 bool has_valid_frame_; 69 70 // Whether a new frame is available that we should update to. 71 bool has_pending_frame_; 72 73 GpuCommandBufferStub* owner_stub_; 74 int32 route_id_; 75 bool has_listener_; 76 77 base::WeakPtrFactory<StreamTexture> weak_factory_; 78 DISALLOW_COPY_AND_ASSIGN(StreamTexture); 79 }; 80 81 } // namespace content 82 83 #endif // CONTENT_COMMON_GPU_STREAM_TEXTURE_ANDROID_H_ 84