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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_FRAMEBUFFER_H
#define _LIBRENDER_FRAMEBUFFER_H
#include "libOpenglRender/render_api.h"
#include "ColorBuffer.h"
#include "RenderContext.h"
#include "WindowSurface.h"
#include "emugl/common/mutex.h"
#include <map>
#include <EGL/egl.h>
#include <stdint.h>
typedef uint32_t HandleType;
struct ColorBufferRef {
ColorBufferPtr cb;
uint32_t refcount; // number of client-side references
};
typedef std::map<HandleType, RenderContextPtr> RenderContextMap;
typedef std::map<HandleType, WindowSurfacePtr> WindowSurfaceMap;
typedef std::map<HandleType, ColorBufferRef> ColorBufferMap;
struct FrameBufferCaps
{
bool hasGL2;
bool has_eglimage_texture_2d;
bool has_eglimage_renderbuffer;
EGLint eglMajor;
EGLint eglMinor;
};
class FrameBuffer
{
public:
static bool initialize(int width, int height);
static bool setupSubWindow(FBNativeWindowType p_window,
int x, int y,
int width, int height, float zRot);
static bool removeSubWindow();
static void finalize();
static FrameBuffer *getFB() { return s_theFrameBuffer; }
const FrameBufferCaps &getCaps() const { return m_caps; }
int getWidth() const { return m_width; }
int getHeight() const { return m_height; }
void setPostCallback(OnPostFn onPost, void* onPostContext);
void getGLStrings(const char** vendor, const char** renderer, const char** version) const {
*vendor = m_glVendor;
*renderer = m_glRenderer;
*version = m_glVersion;
}
HandleType createRenderContext(int p_config, HandleType p_share, bool p_isGL2 = false);
HandleType createWindowSurface(int p_config, int p_width, int p_height);
HandleType createColorBuffer(int p_width, int p_height, GLenum p_internalFormat);
void DestroyRenderContext(HandleType p_context);
void DestroyWindowSurface(HandleType p_surface);
int openColorBuffer(HandleType p_colorbuffer);
void closeColorBuffer(HandleType p_colorbuffer);
bool bindContext(HandleType p_context, HandleType p_drawSurface, HandleType p_readSurface);
bool setWindowSurfaceColorBuffer(HandleType p_surface, HandleType p_colorbuffer);
bool flushWindowSurfaceColorBuffer(HandleType p_surface);
bool bindColorBufferToTexture(HandleType p_colorbuffer);
bool bindColorBufferToRenderbuffer(HandleType p_colorbuffer);
bool updateColorBuffer(HandleType p_colorbuffer,
int x, int y, int width, int height,
GLenum format, GLenum type, void *pixels);
bool post(HandleType p_colorbuffer, bool needLock = true);
bool repost();
EGLDisplay getDisplay() const { return m_eglDisplay; }
EGLNativeWindowType getSubWindow() const { return m_subWin; }
bool bind_locked();
bool unbind_locked();
void setDisplayRotation(float zRot) {
m_zRot = zRot;
repost();
}
private:
FrameBuffer(int p_width, int p_height);
~FrameBuffer();
HandleType genHandle();
bool bindSubwin_locked();
void initGLState();
private:
static FrameBuffer *s_theFrameBuffer;
static HandleType s_nextHandle;
int m_x;
int m_y;
int m_width;
int m_height;
emugl::Mutex m_lock;
FBNativeWindowType m_nativeWindow;
FrameBufferCaps m_caps;
EGLDisplay m_eglDisplay;
RenderContextMap m_contexts;
WindowSurfaceMap m_windows;
ColorBufferMap m_colorbuffers;
EGLSurface m_eglSurface;
EGLContext m_eglContext;
EGLSurface m_pbufSurface;
EGLContext m_pbufContext;
EGLContext m_prevContext;
EGLSurface m_prevReadSurf;
EGLSurface m_prevDrawSurf;
EGLNativeWindowType m_subWin;
EGLNativeDisplayType m_subWinDisplay;
EGLConfig m_eglConfig;
HandleType m_lastPostedColorBuffer;
float m_zRot;
bool m_eglContextInitialized;
int m_statsNumFrames;
long long m_statsStartTime;
bool m_fpsStats;
OnPostFn m_onPost;
void* m_onPostContext;
unsigned char* m_fbImage;
const char* m_glVendor;
const char* m_glRenderer;
const char* m_glVersion;
};
#endif
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