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/*
* Copyright (C) 2011 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.
*/
#ifndef _LIBRENDER_COLORBUFFER_H
#define _LIBRENDER_COLORBUFFER_H
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <GLES/gl.h>
#include "emugl/common/smart_ptr.h"
class ColorBuffer
{
public:
static ColorBuffer *create(int p_width, int p_height,
GLenum p_internalFormat);
~ColorBuffer();
GLuint getGLTextureName() const { return m_tex; }
GLuint getWidth() const { return m_width; }
GLuint getHeight() const { return m_height; }
void subUpdate(int x, int y, int width, int height, GLenum p_format, GLenum p_type, void *pixels);
bool post();
bool bindToTexture();
bool bindToRenderbuffer();
bool blitFromCurrentReadBuffer();
void readback(unsigned char* img);
private:
ColorBuffer();
void drawTexQuad();
bool bind_fbo(); // binds a fbo which have this texture as render target
private:
GLuint m_tex;
GLuint m_blitTex;
EGLImageKHR m_eglImage;
EGLImageKHR m_blitEGLImage;
GLuint m_width;
GLuint m_height;
GLuint m_fbo;
GLenum m_internalFormat;
};
typedef emugl::SmartPtr<ColorBuffer> ColorBufferPtr;
#endif
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