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_FRAMEBUFFER_H 17 #define _LIBRENDER_FRAMEBUFFER_H 18 19 #include "libOpenglRender/render_api.h" 20 #include "ColorBuffer.h" 21 #include "RenderContext.h" 22 #include "WindowSurface.h" 23 #include <utils/threads.h> 24 #include <map> 25 #include <EGL/egl.h> 26 #include <stdint.h> 27 28 typedef uint32_t HandleType; 29 struct ColorBufferRef { 30 ColorBufferPtr cb; 31 uint32_t refcount; // number of client-side references 32 }; 33 typedef std::map<HandleType, RenderContextPtr> RenderContextMap; 34 typedef std::map<HandleType, WindowSurfacePtr> WindowSurfaceMap; 35 typedef std::map<HandleType, ColorBufferRef> ColorBufferMap; 36 37 struct FrameBufferCaps 38 { 39 bool hasGL2; 40 bool has_eglimage_texture_2d; 41 bool has_eglimage_renderbuffer; 42 EGLint eglMajor; 43 EGLint eglMinor; 44 }; 45 46 class FrameBuffer 47 { 48 public: 49 static bool initialize(int width, int height); 50 static bool setupSubWindow(FBNativeWindowType p_window, 51 int x, int y, 52 int width, int height, float zRot); 53 static bool removeSubWindow(); 54 static void finalize(); getFB()55 static FrameBuffer *getFB() { return s_theFrameBuffer; } 56 getCaps()57 const FrameBufferCaps &getCaps() const { return m_caps; } 58 getWidth()59 int getWidth() const { return m_width; } getHeight()60 int getHeight() const { return m_height; } 61 62 void setPostCallback(OnPostFn onPost, void* onPostContext); 63 getGLStrings(const char ** vendor,const char ** renderer,const char ** version)64 void getGLStrings(const char** vendor, const char** renderer, const char** version) const { 65 *vendor = m_glVendor; 66 *renderer = m_glRenderer; 67 *version = m_glVersion; 68 } 69 70 HandleType createRenderContext(int p_config, HandleType p_share, bool p_isGL2 = false); 71 HandleType createWindowSurface(int p_config, int p_width, int p_height); 72 HandleType createColorBuffer(int p_width, int p_height, GLenum p_internalFormat); 73 void DestroyRenderContext(HandleType p_context); 74 void DestroyWindowSurface(HandleType p_surface); 75 void openColorBuffer(HandleType p_colorbuffer); 76 void closeColorBuffer(HandleType p_colorbuffer); 77 78 bool bindContext(HandleType p_context, HandleType p_drawSurface, HandleType p_readSurface); 79 bool setWindowSurfaceColorBuffer(HandleType p_surface, HandleType p_colorbuffer); 80 bool flushWindowSurfaceColorBuffer(HandleType p_surface); 81 bool bindColorBufferToTexture(HandleType p_colorbuffer); 82 bool bindColorBufferToRenderbuffer(HandleType p_colorbuffer); 83 bool updateColorBuffer(HandleType p_colorbuffer, 84 int x, int y, int width, int height, 85 GLenum format, GLenum type, void *pixels); 86 87 bool post(HandleType p_colorbuffer, bool needLock = true); 88 bool repost(); 89 getDisplay()90 EGLDisplay getDisplay() const { return m_eglDisplay; } getSubWindow()91 EGLNativeWindowType getSubWindow() const { return m_subWin; } 92 bool bind_locked(); 93 bool unbind_locked(); 94 setDisplayRotation(float zRot)95 void setDisplayRotation(float zRot) { 96 m_zRot = zRot; 97 repost(); 98 } 99 100 private: 101 FrameBuffer(int p_width, int p_height); 102 ~FrameBuffer(); 103 HandleType genHandle(); 104 bool bindSubwin_locked(); 105 void initGLState(); 106 107 private: 108 static FrameBuffer *s_theFrameBuffer; 109 static HandleType s_nextHandle; 110 int m_x; 111 int m_y; 112 int m_width; 113 int m_height; 114 android::Mutex m_lock; 115 FBNativeWindowType m_nativeWindow; 116 FrameBufferCaps m_caps; 117 EGLDisplay m_eglDisplay; 118 RenderContextMap m_contexts; 119 WindowSurfaceMap m_windows; 120 ColorBufferMap m_colorbuffers; 121 122 EGLSurface m_eglSurface; 123 EGLContext m_eglContext; 124 EGLSurface m_pbufSurface; 125 EGLContext m_pbufContext; 126 127 EGLContext m_prevContext; 128 EGLSurface m_prevReadSurf; 129 EGLSurface m_prevDrawSurf; 130 EGLNativeWindowType m_subWin; 131 EGLNativeDisplayType m_subWinDisplay; 132 EGLConfig m_eglConfig; 133 HandleType m_lastPostedColorBuffer; 134 float m_zRot; 135 bool m_eglContextInitialized; 136 137 int m_statsNumFrames; 138 long long m_statsStartTime; 139 bool m_fpsStats; 140 141 OnPostFn m_onPost; 142 void* m_onPostContext; 143 unsigned char* m_fbImage; 144 145 const char* m_glVendor; 146 const char* m_glRenderer; 147 const char* m_glVersion; 148 }; 149 #endif 150