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 #ifndef _LIBRENDER_COLORBUFFER_H 17 #define _LIBRENDER_COLORBUFFER_H 18 19 #include <EGL/egl.h> 20 #include <EGL/eglext.h> 21 #include <GLES/gl.h> 22 #include <SmartPtr.h> 23 24 class ColorBuffer 25 { 26 public: 27 static ColorBuffer *create(int p_width, int p_height, 28 GLenum p_internalFormat); 29 ~ColorBuffer(); 30 getGLTextureName()31 GLuint getGLTextureName() const { return m_tex; } getWidth()32 GLuint getWidth() const { return m_width; } getHeight()33 GLuint getHeight() const { return m_height; } 34 35 void subUpdate(int x, int y, int width, int height, GLenum p_format, GLenum p_type, void *pixels); 36 bool post(); 37 bool bindToTexture(); 38 bool bindToRenderbuffer(); 39 bool blitFromCurrentReadBuffer(); 40 void readback(unsigned char* img); 41 42 private: 43 ColorBuffer(); 44 void drawTexQuad(bool flipy); 45 bool bind_fbo(); // binds a fbo which have this texture as render target 46 47 private: 48 GLuint m_tex; 49 GLuint m_blitTex; 50 EGLImageKHR m_eglImage; 51 EGLImageKHR m_blitEGLImage; 52 GLuint m_width; 53 GLuint m_height; 54 GLuint m_fbo; 55 GLenum m_internalFormat; 56 bool m_warYInvertBug; 57 }; 58 59 typedef SmartPtr<ColorBuffer> ColorBufferPtr; 60 61 #endif 62