| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| // YUVCanvas holds a reference to a YUVImage on which it can do various |
| // drawing operations. It provides various utility functions for filling, |
| // cropping, etc. |
| |
| |
| #ifndef YUV_CANVAS_H_ |
| |
| #define YUV_CANVAS_H_ |
| |
| #include <stdint.h> |
| |
| namespace android { |
| |
| class YUVImage; |
| class Rect; |
| |
| class YUVCanvas { |
| public: |
| |
| // Constructor takes in reference to a yuvImage on which it can do |
| // various drawing opreations. |
| YUVCanvas(YUVImage &yuvImage); |
| ~YUVCanvas(); |
| |
| // Fills the entire image with the given YUV values. |
| void FillYUV(uint8_t yValue, uint8_t uValue, uint8_t vValue); |
| |
| // Fills the rectangular region [startX,endX]x[startY,endY] with the given YUV values. |
| void FillYUVRectangle(const Rect& rect, |
| uint8_t yValue, uint8_t uValue, uint8_t vValue); |
| |
| // Copies the region [startX,endX]x[startY,endY] from srcImage into the |
| // canvas' target image (mYUVImage) starting at |
| // (destinationStartX,destinationStartY). |
| // Note that undefined behavior may occur if srcImage is same as the canvas' |
| // target image. |
| void CopyImageRect( |
| const Rect& srcRect, |
| int32_t destStartX, int32_t destStartY, |
| const YUVImage &srcImage); |
| |
| private: |
| YUVImage& mYUVImage; |
| |
| YUVCanvas(const YUVCanvas &); |
| YUVCanvas &operator=(const YUVCanvas &); |
| }; |
| |
| } // namespace android |
| |
| #endif // YUV_CANVAS_H_ |