GLenum GLEWAPIENTRY glewInit (void) { GLenum r; r = glewContextInit(); if ( r != 0 ) return r; #if defined(_WIN32) return wglewContextInit(); #elif !defined(__ANDROID__) && !defined(__native_client__) && (!defined(__APPLE__) || defined(GLEW_APPLE_GLX)) /* _UNIX */ return glxewContextInit(); #else return r; #endif /* _WIN32 */ }
GLenum glewInit () { GLenum r; if ( (r = glewContextInit()) ) return r; #if defined(GLEW_USE_LIB_ES) # if defined (GLEW_INC_EGL) return eglewContextInit(); # endif #elif defined(_WIN32) return wglewContextInit(); #elif !defined(__APPLE__) || defined(GLEW_APPLE_GLX) /* _UNIX */ return glxewContextInit(); #endif /* GLEW_USE_LIB_ES */ return r; }
//\brief // initialize the gl extension functions address. static bool InitializeGlew() { GLenum err; GLContext ctx; /* create OpenGL rendering context */ InitContext(&ctx); if (GL_TRUE == CreateContext(&ctx)) { std::cout << "Error: CreateContext failed" << std::endl; DestroyContext(&ctx); return false; } /* initialize GLEW */ glewExperimental = GL_TRUE; #ifdef GLEW_MX err = glewContextInit(glewGetContext()); # ifdef _WIN32 err = err || wglewContextInit(wglewGetContext()); # elif !defined(__APPLE__) && !defined(__HAIKU__) || defined(GLEW_APPLE_GLX) err = err || glxewContextInit(glxewGetContext()); # endif #else err = glewInit(); #endif if (GLEW_OK != err) { std::cout << "Error [main]: glewInit failed: " << glewGetErrorString(err) << std::endl; DestroyContext(&ctx); return false; } DestroyContext(&ctx); return true; }
int main (int argc, char** argv) { GLuint err; struct createParams params = { #if defined(__OSMESA__) -1, /* bit depth */ #elif defined(_WIN32) -1, /* pixelformat */ #elif !defined(__HAIKU__) && !defined(__APPLE__) || defined(GLEW_APPLE_GLX) "", /* display */ -1, /* visual */ #endif 0, /* major */ 0, /* minor */ 0, /* profile mask */ 0 /* flags */ }; if (glewParseArgs(argc-1, argv+1, ¶ms)) { fprintf(stderr, "Usage: glewinfo " #if defined(__OSMESA__) #elif defined(_WIN32) "[-pf <pixelformat>] " #elif !defined(__HAIKU__) && !defined(__APPLE__) || defined(GLEW_APPLE_GLX) "[-display <display>] " "[-visual <visual id>] " #endif "[-version <OpenGL version>] " "[-profile core|compatibility] " "[-flag debug|forward]" "\n"); return 1; } if (GL_TRUE == glewCreateContext(¶ms)) { fprintf(stderr, "Error: glewCreateContext failed\n"); glewDestroyContext(); return 1; } glewExperimental = GL_TRUE; #ifdef GLEW_MX err = glewContextInit(glewGetContext()); #if defined(__OSMESA__) err = err || osmewContextInit(osmewGetContext()); #elif defined(_WIN32) err = err || wglewContextInit(wglewGetContext()); #elif !defined(__HAIKU__) && !defined(__APPLE__) || defined(GLEW_APPLE_GLX) err = err || glxewContextInit(glxewGetContext()); #endif #else err = glewInit(); #endif if (GLEW_OK != err) { fprintf(stderr, "Error [main]: glewInit failed: %s\n", glewGetErrorString(err)); glewDestroyContext(); return 1; } #if defined(_WIN32) #if defined(_MSC_VER) && (_MSC_VER >= 1400) if (fopen_s(&f, "glewinfo.txt", "w") != 0) f = stdout; #else f = fopen("glewinfo.txt", "w"); #endif /* _MSC_VER */ if (f == NULL) f = stdout; #else f = stdout; #endif /* _WIN32 */ fprintf(f, "---------------------------\n"); fprintf(f, " GLEW Extension Info\n"); fprintf(f, "---------------------------\n\n"); fprintf(f, "GLEW version %s\n", glewGetString(GLEW_VERSION)); #if defined(__OSMESA__) fprintf(f, "Reporting capabilitiees of OSMesa\n"); #elif defined(_WIN32) fprintf(f, "Reporting capabilities of pixelformat %d\n", params.pixelformat); #elif !defined(__APPLE__) || defined(GLEW_APPLE_GLX) fprintf(f, "Reporting capabilities of display %s, visual 0x%x\n", params.display == NULL ? getenv("DISPLAY") : params.display, params.visual); #endif /* __OSMESA__ */ fprintf(f, "Running on a %s from %s\n", glGetString(GL_RENDERER), glGetString(GL_VENDOR)); fprintf(f, "OpenGL version %s is supported\n", glGetString(GL_VERSION)); glewInfo(); #if defined(__OSMESA__) osmewInfo(); #elif defined(_WIN32) wglewInfo(); #else glxewInfo(); #endif /* __OSMESA__ */ if (f != stdout) fclose(f); glewDestroyContext(); return 0; }
int main (int argc, char** argv) { GLenum err; GLContext ctx; /* ---------------------------------------------------------------------- */ /* parse arguments */ if (GL_TRUE == ParseArgs(argc-1, argv+1)) { #if defined(_WIN32) fprintf(stderr, "Usage: visualinfo [-a] [-s] [-h] [-pf <id>]\n"); fprintf(stderr, " -a: show all visuals\n"); fprintf(stderr, " -s: display to stdout instead of visualinfo.txt\n"); fprintf(stderr, " -pf <id>: use given pixelformat\n"); fprintf(stderr, " -h: this screen\n"); #else fprintf(stderr, "Usage: visualinfo [-h] [-display <display>] [-visual <id>]\n"); fprintf(stderr, " -h: this screen\n"); fprintf(stderr, " -display <display>: use given display\n"); fprintf(stderr, " -visual <id>: use given visual\n"); #endif return 1; } /* ---------------------------------------------------------------------- */ /* create OpenGL rendering context */ InitContext(&ctx); if (GL_TRUE == CreateContext(&ctx)) { fprintf(stderr, "Error: CreateContext failed\n"); DestroyContext(&ctx); return 1; } /* ---------------------------------------------------------------------- */ /* initialize GLEW */ glewExperimental = GL_TRUE; #ifdef GLEW_MX err = glewContextInit(glewGetContext()); # ifdef _WIN32 err = err || wglewContextInit(wglewGetContext()); # elif !defined(__APPLE__) || defined(GLEW_APPLE_GLX) err = err || glxewContextInit(glxewGetContext()); # endif #else err = glewInit(); #endif if (GLEW_OK != err) { fprintf(stderr, "Error [main]: glewInit failed: %s\n", glewGetErrorString(err)); DestroyContext(&ctx); return 1; } /* ---------------------------------------------------------------------- */ /* open file */ #if defined(_WIN32) if (!displaystdout) file = fopen("visualinfo.txt", "w"); if (file == NULL) file = stdout; #else file = stdout; #endif /* ---------------------------------------------------------------------- */ /* output header information */ /* OpenGL extensions */ fprintf(file, "OpenGL vendor string: %s\n", glGetString(GL_VENDOR)); fprintf(file, "OpenGL renderer string: %s\n", glGetString(GL_RENDERER)); fprintf(file, "OpenGL version string: %s\n", glGetString(GL_VERSION)); fprintf(file, "OpenGL extensions (GL_): \n"); PrintExtensions((char*)glGetString(GL_EXTENSIONS)); /* GLU extensions */ fprintf(file, "GLU version string: %s\n", gluGetString(GLU_VERSION)); fprintf(file, "GLU extensions (GLU_): \n"); PrintExtensions((char*)gluGetString(GLU_EXTENSIONS)); /* ---------------------------------------------------------------------- */ /* extensions string */ #if defined(_WIN32) /* WGL extensions */ if (WGLEW_ARB_extensions_string || WGLEW_EXT_extensions_string) { fprintf(file, "WGL extensions (WGL_): \n"); PrintExtensions(wglGetExtensionsStringARB ? (char*)wglGetExtensionsStringARB(ctx.dc) : (char*)wglGetExtensionsStringEXT()); } #elif defined(__APPLE__) && !defined(GLEW_APPLE_GLX) #else /* GLX extensions */ fprintf(file, "GLX extensions (GLX_): \n"); PrintExtensions(glXQueryExtensionsString(glXGetCurrentDisplay(), DefaultScreen(glXGetCurrentDisplay()))); #endif /* ---------------------------------------------------------------------- */ /* enumerate all the formats */ VisualInfo(&ctx); /* ---------------------------------------------------------------------- */ /* release resources */ DestroyContext(&ctx); if (file != stdout) fclose(file); return 0; }
int main (void) #endif { GLuint err; #if defined(_WIN32) || !defined(__APPLE__) || defined(GLEW_APPLE_GLX) char* display = NULL; int visual = -1; if (glewParseArgs(argc-1, argv+1, &display, &visual)) { #if defined(_WIN32) fprintf(stderr, "Usage: glewinfo [-pf <id>]\n"); #else fprintf(stderr, "Usage: glewinfo [-display <display>] [-visual <id>]\n"); #endif return 1; } #endif #if defined(_WIN32) if (GL_TRUE == glewCreateContext(&visual)) #elif defined(__APPLE__) && !defined(GLEW_APPLE_GLX) if (GL_TRUE == glewCreateContext()) #else if (GL_TRUE == glewCreateContext(display, &visual)) #endif { fprintf(stderr, "Error: glewCreateContext failed\n"); glewDestroyContext(); return 1; } glewExperimental = GL_TRUE; #ifdef GLEW_MX err = glewContextInit(glewGetContext()); #ifdef _WIN32 err = err || wglewContextInit(wglewGetContext()); #elif !defined(__APPLE__) || defined(GLEW_APPLE_GLX) err = err || glxewContextInit(glxewGetContext()); #endif #else err = glewInit(); #endif if (GLEW_OK != err) { fprintf(stderr, "Error [main]: glewInit failed: %s\n", glewGetErrorString(err)); glewDestroyContext(); return 1; } #if defined(_WIN32) f = fopen("glewinfo.txt", "w"); if (f == NULL) f = stdout; #else f = stdout; #endif fprintf(f, "---------------------------\n"); fprintf(f, " GLEW Extension Info\n"); fprintf(f, "---------------------------\n\n"); fprintf(f, "GLEW version %s\n", glewGetString(GLEW_VERSION)); #if defined(_WIN32) fprintf(f, "Reporting capabilities of pixelformat %d\n", visual); #elif !defined(__APPLE__) || defined(GLEW_APPLE_GLX) fprintf(f, "Reporting capabilities of display %s, visual 0x%x\n", display == NULL ? getenv("DISPLAY") : display, visual); #endif fprintf(f, "Running on a %s from %s\n", glGetString(GL_RENDERER), glGetString(GL_VENDOR)); fprintf(f, "OpenGL version %s is supported\n", glGetString(GL_VERSION)); glewInfo(); #if defined(_WIN32) wglewInfo(); #else glxewInfo(); #endif if (f != stdout) fclose(f); glewDestroyContext(); return 0; }