1 /* 2 * Copyright 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 17 #ifndef GLES_CONTEXT_H 18 #define GLES_CONTEXT_H 19 20 #include "GLDispatch.h" 21 #include "GLESpointer.h" 22 #include "objectNameManager.h" 23 #include <utils/threads.h> 24 #include <string> 25 26 typedef std::map<GLenum,GLESpointer*> ArraysMap; 27 28 enum TextureTarget { 29 TEXTURE_2D, 30 TEXTURE_CUBE_MAP, 31 NUM_TEXTURE_TARGETS 32 }; 33 34 typedef struct _textureTargetState { 35 GLuint texture; 36 GLboolean enabled; 37 } textureTargetState; 38 39 typedef textureTargetState textureUnitState[NUM_TEXTURE_TARGETS]; 40 41 class Version{ 42 public: 43 Version(); 44 Version(int major,int minor,int release); 45 Version(const char* versionString); 46 Version(const Version& ver); 47 bool operator<(const Version& ver) const; 48 Version& operator=(const Version& ver); 49 private: 50 int m_major; 51 int m_minor; 52 int m_release; 53 }; 54 55 struct GLSupport { 56 GLSupport():maxLights(0),maxVertexAttribs(0),maxClipPlane(0),maxTexUnits(0), \ 57 maxTexImageUnits(0),maxTexSize(0) , \ 58 GL_EXT_TEXTURE_FORMAT_BGRA8888(false), GL_EXT_FRAMEBUFFER_OBJECT(false), \ 59 GL_ARB_VERTEX_BLEND(false), GL_ARB_MATRIX_PALETTE(false), \ 60 GL_EXT_PACKED_DEPTH_STENCIL(false) , GL_OES_READ_FORMAT(false), \ 61 GL_ARB_HALF_FLOAT_PIXEL(false), GL_NV_HALF_FLOAT(false), \ 62 GL_ARB_HALF_FLOAT_VERTEX(false),GL_SGIS_GENERATE_MIPMAP(false), 63 GL_ARB_ES2_COMPATIBILITY(false),GL_OES_STANDARD_DERIVATIVES(false) {} ; 64 int maxLights; 65 int maxVertexAttribs; 66 int maxClipPlane; 67 int maxTexUnits; 68 int maxTexImageUnits; 69 int maxTexSize; 70 Version glslVersion; 71 bool GL_EXT_TEXTURE_FORMAT_BGRA8888; 72 bool GL_EXT_FRAMEBUFFER_OBJECT; 73 bool GL_ARB_VERTEX_BLEND; 74 bool GL_ARB_MATRIX_PALETTE; 75 bool GL_EXT_PACKED_DEPTH_STENCIL; 76 bool GL_OES_READ_FORMAT; 77 bool GL_ARB_HALF_FLOAT_PIXEL; 78 bool GL_NV_HALF_FLOAT; 79 bool GL_ARB_HALF_FLOAT_VERTEX; 80 bool GL_SGIS_GENERATE_MIPMAP; 81 bool GL_ARB_ES2_COMPATIBILITY; 82 bool GL_OES_STANDARD_DERIVATIVES; 83 84 }; 85 86 struct ArrayData{ 87 ArrayData():data(NULL), 88 type(0), 89 stride(0), 90 allocated(false){}; 91 92 void* data; 93 GLenum type; 94 unsigned int stride; 95 bool allocated; 96 }; 97 98 class GLESConversionArrays 99 { 100 public: 101 GLESConversionArrays():m_current(0){}; 102 void setArr(void* data,unsigned int stride,GLenum type); 103 void allocArr(unsigned int size,GLenum type); 104 ArrayData& operator[](int i); 105 void* getCurrentData(); 106 ArrayData& getCurrentArray(); 107 unsigned int getCurrentIndex(); 108 void operator++(); 109 110 ~GLESConversionArrays(); 111 private: 112 std::map<GLenum,ArrayData> m_arrays; 113 unsigned int m_current; 114 }; 115 116 class GLEScontext{ 117 public: 118 virtual void init(); 119 GLEScontext(); 120 GLenum getGLerror(); 121 void setGLerror(GLenum err); 122 void setShareGroup(ShareGroupPtr grp){m_shareGroup = grp;}; 123 ShareGroupPtr shareGroup() const { return m_shareGroup; } 124 virtual void setActiveTexture(GLenum tex); 125 unsigned int getBindedTexture(GLenum target); 126 unsigned int getBindedTexture(GLenum unit,GLenum target); 127 void setBindedTexture(GLenum target,unsigned int tex); 128 bool isTextureUnitEnabled(GLenum unit); 129 void setTextureEnabled(GLenum target, GLenum enable); 130 ObjectLocalName getDefaultTextureName(GLenum target); 131 bool isInitialized() { return m_initialized; }; 132 void setUnpackAlignment(GLint param){ m_unpackAlignment = param; }; 133 GLint getUnpackAlignment(){ return m_unpackAlignment; }; 134 135 bool isArrEnabled(GLenum); 136 void enableArr(GLenum arr,bool enable); 137 const GLvoid* setPointer(GLenum arrType,GLint size,GLenum type,GLsizei stride,const GLvoid* data,bool normalize = false); 138 virtual const GLESpointer* getPointer(GLenum arrType); 139 virtual void setupArraysPointers(GLESConversionArrays& fArrs,GLint first,GLsizei count,GLenum type,const GLvoid* indices,bool direct) = 0; 140 void bindBuffer(GLenum target,GLuint buffer); 141 void unbindBuffer(GLuint buffer); 142 bool isBuffer(GLuint buffer); 143 bool isBindedBuffer(GLenum target); 144 GLvoid* getBindedBuffer(GLenum target); 145 void getBufferSize(GLenum target,GLint* param); 146 void getBufferUsage(GLenum target,GLint* param); 147 bool setBufferData(GLenum target,GLsizeiptr size,const GLvoid* data,GLenum usage); 148 bool setBufferSubData(GLenum target,GLintptr offset,GLsizeiptr size,const GLvoid* data); 149 const char * getExtensionString(); 150 const char * getVendorString() const; 151 const char * getRendererString() const; 152 const char * getVersionString() const; 153 void getGlobalLock(); 154 void releaseGlobalLock(); 155 virtual GLSupport* getCaps(){return &s_glSupport;}; 156 virtual ~GLEScontext(); 157 virtual int getMaxTexUnits() = 0; 158 virtual void drawValidate(void); 159 160 void setRenderbufferBinding(GLuint rb) { m_renderbuffer = rb; } 161 GLuint getRenderbufferBinding() const { return m_renderbuffer; } 162 void setFramebufferBinding(GLuint fb) { m_framebuffer = fb; } 163 GLuint getFramebufferBinding() const { return m_framebuffer; } 164 165 static GLDispatch& dispatcher(){return s_glDispatch;}; 166 167 static int getMaxLights(){return s_glSupport.maxLights;} 168 static int getMaxClipPlanes(){return s_glSupport.maxClipPlane;} 169 static int getMaxTexSize(){return s_glSupport.maxTexSize;} 170 static Version glslVersion(){return s_glSupport.glslVersion;} 171 static bool isAutoMipmapSupported(){return s_glSupport.GL_SGIS_GENERATE_MIPMAP;} 172 static TextureTarget GLTextureTargetToLocal(GLenum target); 173 static int findMaxIndex(GLsizei count,GLenum type,const GLvoid* indices); 174 175 virtual bool glGetIntegerv(GLenum pname, GLint *params); 176 virtual bool glGetBooleanv(GLenum pname, GLboolean *params); 177 virtual bool glGetFloatv(GLenum pname, GLfloat *params); 178 virtual bool glGetFixedv(GLenum pname, GLfixed *params); 179 180 protected: 181 static void buildStrings(const char* baseVendor, const char* baseRenderer, const char* baseVersion, const char* version); 182 virtual bool needConvert(GLESConversionArrays& fArrs,GLint first,GLsizei count,GLenum type,const GLvoid* indices,bool direct,GLESpointer* p,GLenum array_id) = 0; 183 void convertDirect(GLESConversionArrays& fArrs,GLint first,GLsizei count,GLenum array_id,GLESpointer* p); 184 void convertDirectVBO(GLESConversionArrays& fArrs,GLint first,GLsizei count,GLenum array_id,GLESpointer* p); 185 void convertIndirect(GLESConversionArrays& fArrs,GLsizei count,GLenum type,const GLvoid* indices,GLenum array_id,GLESpointer* p); 186 void convertIndirectVBO(GLESConversionArrays& fArrs,GLsizei count,GLenum indices_type,const GLvoid* indices,GLenum array_id,GLESpointer* p); 187 void initCapsLocked(const GLubyte * extensionString); 188 virtual void initExtensionString() =0; 189 190 static android::Mutex s_lock; 191 static GLDispatch s_glDispatch; 192 bool m_initialized; 193 unsigned int m_activeTexture; 194 GLint m_unpackAlignment; 195 ArraysMap m_map; 196 static std::string* s_glExtensions; 197 static GLSupport s_glSupport; 198 199 private: 200 201 virtual void setupArr(const GLvoid* arr,GLenum arrayType,GLenum dataType,GLint size,GLsizei stride, GLboolean normalized, int pointsIndex = -1) = 0 ; 202 GLuint getBuffer(GLenum target); 203 204 ShareGroupPtr m_shareGroup; 205 GLenum m_glError; 206 textureUnitState* m_texState; 207 unsigned int m_arrayBuffer; 208 unsigned int m_elementBuffer; 209 GLuint m_renderbuffer; 210 GLuint m_framebuffer; 211 212 static std::string s_glVendor; 213 static std::string s_glRenderer; 214 static std::string s_glVersion; 215 }; 216 217 #endif 218 219
