1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef PREVIEW_RENDERER_H_ 18 19 #define PREVIEW_RENDERER_H_ 20 21 #include <media/stagefright/ColorConverter.h> 22 #include <utils/RefBase.h> 23 #include <system/window.h> 24 #include <ui/GraphicBufferMapper.h> 25 26 27 namespace android { 28 29 class Surface; 30 31 class PreviewRenderer { 32 public: 33 34 static PreviewRenderer* CreatePreviewRenderer ( 35 const sp<Surface> &surface, 36 size_t width, size_t height); 37 38 ~PreviewRenderer(); 39 40 void getBufferYV12(uint8_t **data, size_t *stride); 41 42 void renderYV12(); 43 ALIGN(size_t x,size_t alignment)44 static size_t ALIGN(size_t x, size_t alignment) { 45 return (x + alignment - 1) & ~(alignment - 1); 46 } 47 48 private: 49 PreviewRenderer( 50 const sp<Surface> &surface, 51 size_t width, size_t height); 52 53 int init(); 54 55 sp<Surface> mSurface; 56 size_t mWidth, mHeight; 57 58 ANativeWindowBuffer *mBuf; 59 60 PreviewRenderer(const PreviewRenderer &); 61 PreviewRenderer &operator=(const PreviewRenderer &); 62 }; 63 64 } // namespace android 65 66 #endif // PREVIEW_RENDERER_H_ 67