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