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 #include "GLDecoder.h" 17 #include <string.h> 18 #include <stdio.h> 19 #include <stdlib.h> 20 #include <EGL/egl.h> 21 #include <GLES/gl.h> 22 #include <GLES/glext.h> 23 24 static inline void* SafePointerFromUInt(GLuint value) { 25 return (void*)(uintptr_t)value; 26 } 27 28 GLDecoder::GLDecoder() 29 { 30 m_contextData = NULL; 31 m_glesDso = NULL; 32 } 33 34 GLDecoder::~GLDecoder() 35 { 36 if (m_glesDso != NULL) { 37 delete m_glesDso; 38 } 39 } 40 41 42 int GLDecoder::initGL(get_proc_func_t getProcFunc, void *getProcFuncData) 43 { 44 if (getProcFunc == NULL) { 45 const char *libname = GLES_LIBNAME; 46 if (getenv(GLES_LIBNAME_VAR) != NULL) { 47 libname = getenv(GLES_LIBNAME_VAR); 48 } 49 50 m_glesDso = osUtils::dynLibrary::open(libname); 51 if (m_glesDso == NULL) { 52 fprintf(stderr, "Couldn't find %s \n", GLES_LIBNAME); 53 return -1; 54 } 55 56 this->initDispatchByName(s_getProc, this); 57 } else { 58 this->initDispatchByName(getProcFunc, getProcFuncData); 59 } 60 61 set_glGetCompressedTextureFormats(s_glGetCompressedTextureFormats); 62 set_glVertexPointerOffset(s_glVertexPointerOffset); 63 set_glColorPointerOffset(s_glColorPointerOffset); 64 set_glNormalPointerOffset(s_glNormalPointerOffset); 65 set_glTexCoordPointerOffset(s_glTexCoordPointerOffset); 66 set_glPointSizePointerOffset(s_glPointSizePointerOffset); 67 set_glWeightPointerOffset(s_glWeightPointerOffset); 68 set_glMatrixIndexPointerOffset(s_glMatrixIndexPointerOffset); 69 70 set_glVertexPointerData(s_glVertexPointerData); 71 set_glColorPointerData(s_glColorPointerData); 72 set_glNormalPointerData(s_glNormalPointerData); 73 set_glTexCoordPointerData(s_glTexCoordPointerData); 74 set_glPointSizePointerData(s_glPointSizePointerData); 75 set_glWeightPointerData(s_glWeightPointerData); 76 set_glMatrixIndexPointerData(s_glMatrixIndexPointerData); 77 78 set_glDrawElementsOffset(s_glDrawElementsOffset); 79 set_glDrawElementsData(s_glDrawElementsData); 80 set_glFinishRoundTrip(s_glFinishRoundTrip); 81 82 return 0; 83 } 84 85 int GLDecoder::s_glFinishRoundTrip(void *self) 86 { 87 GLDecoder *ctx = (GLDecoder *)self; 88 ctx->glFinish(); 89 return 0; 90 } 91 92 void GLDecoder::s_glVertexPointerOffset(void *self, GLint size, GLenum type, GLsizei stride, GLuint offset) 93 { 94 GLDecoder *ctx = (GLDecoder *)self; 95 ctx->glVertexPointer(size, type, stride, SafePointerFromUInt(offset)); 96 } 97 98 void GLDecoder::s_glColorPointerOffset(void *self, GLint size, GLenum type, GLsizei stride, GLuint offset) 99 { 100 GLDecoder *ctx = (GLDecoder *)self; 101 ctx->glColorPointer(size, type, stride, SafePointerFromUInt(offset)); 102 } 103 104 void GLDecoder::s_glTexCoordPointerOffset(void *self, GLint size, GLenum type, GLsizei stride, GLuint offset) 105 { 106 GLDecoder *ctx = (GLDecoder *)self; 107 ctx->glTexCoordPointer(size, type, stride, SafePointerFromUInt(offset)); 108 } 109 110 void GLDecoder::s_glNormalPointerOffset(void *self, GLenum type, GLsizei stride, GLuint offset) 111 { 112 GLDecoder *ctx = (GLDecoder *)self; 113 ctx->glNormalPointer(type, stride, SafePointerFromUInt(offset)); 114 } 115 116 void GLDecoder::s_glPointSizePointerOffset(void *self, GLenum type, GLsizei stride, GLuint offset) 117 { 118 GLDecoder *ctx = (GLDecoder *)self; 119 ctx->glPointSizePointerOES(type, stride, SafePointerFromUInt(offset)); 120 } 121 122 void GLDecoder::s_glWeightPointerOffset(void * self, GLint size, GLenum type, GLsizei stride, GLuint offset) 123 { 124 GLDecoder *ctx = (GLDecoder *)self; 125 ctx->glWeightPointerOES(size, type, stride, SafePointerFromUInt(offset)); 126 } 127 128 void GLDecoder::s_glMatrixIndexPointerOffset(void * self, GLint size, GLenum type, GLsizei stride, GLuint offset) 129 { 130 GLDecoder *ctx = (GLDecoder *)self; 131 ctx->glMatrixIndexPointerOES(size, type, stride, SafePointerFromUInt(offset)); 132 } 133 134 135 136 #define STORE_POINTER_DATA_OR_ABORT(location) \ 137 if (ctx->m_contextData != NULL) { \ 138 ctx->m_contextData->storePointerData((location), data, datalen); \ 139 } else { \ 140 return; \ 141 } 142 143 void GLDecoder::s_glVertexPointerData(void *self, GLint size, GLenum type, GLsizei stride, void *data, GLuint datalen) 144 { 145 GLDecoder *ctx = (GLDecoder *)self; 146 147 STORE_POINTER_DATA_OR_ABORT(GLDecoderContextData::VERTEX_LOCATION); 148 149 ctx->glVertexPointer(size, type, 0, ctx->m_contextData->pointerData(GLDecoderContextData::VERTEX_LOCATION)); 150 } 151 152 void GLDecoder::s_glColorPointerData(void *self, GLint size, GLenum type, GLsizei stride, void *data, GLuint datalen) 153 { 154 GLDecoder *ctx = (GLDecoder *)self; 155 156 STORE_POINTER_DATA_OR_ABORT(GLDecoderContextData::COLOR_LOCATION); 157 158 ctx->glColorPointer(size, type, 0, ctx->m_contextData->pointerData(GLDecoderContextData::COLOR_LOCATION)); 159 } 160 161 void GLDecoder::s_glTexCoordPointerData(void *self, GLint unit, GLint size, GLenum type, GLsizei stride, void *data, GLuint datalen) 162 { 163 GLDecoder *ctx = (GLDecoder *)self; 164 STORE_POINTER_DATA_OR_ABORT((GLDecoderContextData::PointerDataLocation) 165 (GLDecoderContextData::TEXCOORD0_LOCATION + unit)); 166 167 ctx->glTexCoordPointer(size, type, 0, 168 ctx->m_contextData->pointerData((GLDecoderContextData::PointerDataLocation) 169 (GLDecoderContextData::TEXCOORD0_LOCATION + unit))); 170 } 171 172 void GLDecoder::s_glNormalPointerData(void *self, GLenum type, GLsizei stride, void *data, GLuint datalen) 173 { 174 GLDecoder *ctx = (GLDecoder *)self; 175 176 STORE_POINTER_DATA_OR_ABORT(GLDecoderContextData::NORMAL_LOCATION); 177 178 ctx->glNormalPointer(type, 0, ctx->m_contextData->pointerData(GLDecoderContextData::NORMAL_LOCATION)); 179 } 180 181 void GLDecoder::s_glPointSizePointerData(void *self, GLenum type, GLsizei stride, void *data, GLuint datalen) 182 { 183 GLDecoder *ctx = (GLDecoder *)self; 184 185 STORE_POINTER_DATA_OR_ABORT(GLDecoderContextData::POINTSIZE_LOCATION); 186 187 ctx->glPointSizePointerOES(type, 0, ctx->m_contextData->pointerData(GLDecoderContextData::POINTSIZE_LOCATION)); 188 } 189 190 void GLDecoder::s_glWeightPointerData(void * self, GLint size, GLenum type, GLsizei stride, void * data, GLuint datalen) 191 { 192 GLDecoder *ctx = (GLDecoder *)self; 193 194 STORE_POINTER_DATA_OR_ABORT(GLDecoderContextData::WEIGHT_LOCATION); 195 196 ctx->glWeightPointerOES(size, type, 0, ctx->m_contextData->pointerData(GLDecoderContextData::WEIGHT_LOCATION)); 197 } 198 199 void GLDecoder::s_glMatrixIndexPointerData(void * self, GLint size, GLenum type, GLsizei stride, void * data, GLuint datalen) 200 { 201 GLDecoder *ctx = (GLDecoder *)self; 202 203 STORE_POINTER_DATA_OR_ABORT(GLDecoderContextData::MATRIXINDEX_LOCATION); 204 205 ctx->glMatrixIndexPointerOES(size, type, 0, ctx->m_contextData->pointerData(GLDecoderContextData::MATRIXINDEX_LOCATION)); 206 } 207 208 void GLDecoder::s_glDrawElementsOffset(void *self, GLenum mode, GLsizei count, GLenum type, GLuint offset) 209 { 210 GLDecoder *ctx = (GLDecoder *)self; 211 ctx->glDrawElements(mode, count, type, SafePointerFromUInt(offset)); 212 } 213 214 void GLDecoder::s_glDrawElementsData(void *self, GLenum mode, GLsizei count, GLenum type, void * data, GLuint datalen) 215 { 216 GLDecoder *ctx = (GLDecoder *)self; 217 ctx->glDrawElements(mode, count, type, data); 218 } 219 220 void GLDecoder::s_glGetCompressedTextureFormats(void *self, GLint count, GLint *data) 221 { 222 GLDecoder *ctx = (GLDecoder *) self; 223 ctx->glGetIntegerv(GL_COMPRESSED_TEXTURE_FORMATS, data); 224 } 225 226 void *GLDecoder::s_getProc(const char *name, void *userData) 227 { 228 GLDecoder *ctx = (GLDecoder *)userData; 229 230 if (ctx == NULL || ctx->m_glesDso == NULL) { 231 return NULL; 232 } 233 234 void *func = NULL; 235 #ifdef USE_EGL_GETPROCADDRESS 236 func = (void *) eglGetProcAddress(name); 237 #endif 238 if (func == NULL) { 239 func = (void *)(ctx->m_glesDso->findSymbol(name)); 240 } 241 return func; 242 } 243
