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glew-cmake/auto/src/glewinfo_tail.c

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}
#endif /* _WIN32 */
/* ------------------------------------------------------------------------ */
int main (int argc, char** argv)
{
GLuint err;
struct createParams params =
{
#if defined(GLEW_OSMESA)
#elif defined(GLEW_EGL)
#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 */
0 /* experimental */
};
#if defined(GLEW_EGL)
typedef const GLubyte* (GLAPIENTRY * PFNGLGETSTRINGPROC) (GLenum name);
PFNGLGETSTRINGPROC getString;
#endif
if (glewParseArgs(argc-1, argv+1, &params))
{
fprintf(stderr, "Usage: glewinfo "
#if defined(GLEW_OSMESA)
#elif defined(GLEW_EGL)
#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] "
"[-experimental]"
"\n");
return 1;
}
if (GL_TRUE == glewCreateContext(&params))
{
fprintf(stderr, "Error: glewCreateContext failed\n");
glewDestroyContext();
return 1;
}
glewExperimental = params.experimental ? GL_TRUE : GL_FALSE;
err = glewInit();
if (GLEW_OK != err)
{
fprintf(stderr, "Error [main]: glewInit failed: %s\n", glewGetErrorString(err));
glewDestroyContext();
return 1;
}
#if defined(GLEW_EGL)
getString = (PFNGLGETSTRINGPROC) eglGetProcAddress("glGetString");
if (!getString)
{
fprintf(stderr, "Error: eglGetProcAddress failed to fetch glGetString\n");
glewDestroyContext();
return 1;
}
#endif
#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
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(GLEW_OSMESA)
#elif defined(GLEW_EGL)
#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
#if defined(GLEW_EGL)
fprintf(f, "Running on a %s from %s\n",
getString(GL_RENDERER), getString(GL_VENDOR));
fprintf(f, "OpenGL version %s is supported\n", getString(GL_VERSION));
#else
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));
#endif
glewInfo();
#if defined(GLEW_OSMESA)
#elif defined(GLEW_EGL)
eglewInfo();
#elif defined(_WIN32)
wglewInfo();
#else
glxewInfo();
#endif
if (f != stdout) fclose(f);
glewDestroyContext();
return 0;
}
/* ------------------------------------------------------------------------ */
GLboolean glewParseArgs (int argc, char** argv, struct createParams *params)
{
int p = 0;
while (p < argc)
{
if (!strcmp(argv[p], "-version"))
{
if (++p >= argc) return GL_TRUE;
#if defined(__STDC_LIB_EXT1__) || (defined(_MSC_VER) && (_MSC_VER >= 1400))
if (sscanf_s(argv[p++], "%d.%d", &params->major, &params->minor) != 2) return GL_TRUE;
#else
if (sscanf(argv[p++], "%d.%d", &params->major, &params->minor) != 2) return GL_TRUE;
#endif
}
else if (!strcmp(argv[p], "-profile"))
{
if (++p >= argc) return GL_TRUE;
if (strcmp("core", argv[p]) == 0) params->profile |= 1;
else if (strcmp("compatibility",argv[p]) == 0) params->profile |= 2;
else return GL_TRUE;
++p;
}
else if (!strcmp(argv[p], "-flag"))
{
if (++p >= argc) return GL_TRUE;
if (strcmp("debug", argv[p]) == 0) params->flags |= 1;
else if (strcmp("forward",argv[p]) == 0) params->flags |= 2;
else return GL_TRUE;
++p;
}
#if defined(GLEW_OSMESA)
#elif defined(GLEW_EGL)
#elif defined(_WIN32)
else if (!strcmp(argv[p], "-pf") || !strcmp(argv[p], "-pixelformat"))
{
if (++p >= argc) return GL_TRUE;
params->pixelformat = strtol(argv[p++], NULL, 0);
}
#elif !defined(__HAIKU__) && !defined(__APPLE__) || defined(GLEW_APPLE_GLX)
else if (!strcmp(argv[p], "-display"))
{
if (++p >= argc) return GL_TRUE;
params->display = argv[p++];
}
else if (!strcmp(argv[p], "-visual"))
{
if (++p >= argc) return GL_TRUE;
params->visual = (int)strtol(argv[p++], NULL, 0);
}
#endif
else if (!strcmp(argv[p], "-experimental"))
{
params->experimental = 1;
++p;
}
else
return GL_TRUE;
}
return GL_FALSE;
}
/* ------------------------------------------------------------------------ */
#if defined(GLEW_EGL)
EGLDisplay display;
EGLContext ctx;
/* See: http://stackoverflow.com/questions/12662227/opengl-es2-0-offscreen-context-for-fbo-rendering */
GLboolean glewCreateContext (struct createParams *params)
{
EGLDeviceEXT devices[1];
EGLint numDevices;
EGLSurface surface;
EGLint majorVersion, minorVersion;
EGLint configAttribs[] = {
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_RED_SIZE, 1,
EGL_GREEN_SIZE, 1,
EGL_BLUE_SIZE, 1,
EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
EGL_NONE
};
static const EGLint contextAttribs[] = {
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_NONE
};
static const EGLint pBufferAttribs[] = {
EGL_WIDTH, 128,
EGL_HEIGHT, 128,
EGL_NONE
};
EGLConfig config;
EGLint numConfig;
EGLBoolean pBuffer;
PFNEGLQUERYDEVICESEXTPROC queryDevices = NULL;
PFNEGLGETPLATFORMDISPLAYEXTPROC getPlatformDisplay = NULL;
PFNEGLGETERRORPROC getError = NULL;
PFNEGLGETDISPLAYPROC getDisplay = NULL;
PFNEGLINITIALIZEPROC initialize = NULL;
PFNEGLBINDAPIPROC bindAPI = NULL;
PFNEGLCHOOSECONFIGPROC chooseConfig = NULL;
PFNEGLCREATEWINDOWSURFACEPROC createWindowSurface = NULL;
PFNEGLCREATECONTEXTPROC createContext = NULL;
PFNEGLMAKECURRENTPROC makeCurrent = NULL;
PFNEGLCREATEPBUFFERSURFACEPROC createPbufferSurface = NULL;
/* Load necessary entry points */
queryDevices = (PFNEGLQUERYDEVICESEXTPROC) eglGetProcAddress("eglQueryDevicesEXT");
getPlatformDisplay = (PFNEGLGETPLATFORMDISPLAYEXTPROC) eglGetProcAddress("eglGetPlatformDisplayEXT");
getError = (PFNEGLGETERRORPROC) eglGetProcAddress("eglGetError");
getDisplay = (PFNEGLGETDISPLAYPROC) eglGetProcAddress("eglGetDisplay");
initialize = (PFNEGLINITIALIZEPROC) eglGetProcAddress("eglInitialize");
bindAPI = (PFNEGLBINDAPIPROC) eglGetProcAddress("eglBindAPI");
chooseConfig = (PFNEGLCHOOSECONFIGPROC) eglGetProcAddress("eglChooseConfig");
createWindowSurface = (PFNEGLCREATEWINDOWSURFACEPROC) eglGetProcAddress("eglCreateWindowSurface");
createPbufferSurface = (PFNEGLCREATEPBUFFERSURFACEPROC) eglGetProcAddress("eglCreatePbufferSurface");
createContext = (PFNEGLCREATECONTEXTPROC) eglGetProcAddress("eglCreateContext");
makeCurrent = (PFNEGLMAKECURRENTPROC) eglGetProcAddress("eglMakeCurrent");
if (!getError || !getDisplay || !initialize || !bindAPI || !chooseConfig || !createWindowSurface || !createContext || !makeCurrent)
return GL_TRUE;
pBuffer = 0;
display = EGL_NO_DISPLAY;
if (queryDevices && getPlatformDisplay)
{
queryDevices(1, devices, &numDevices);
if (numDevices==1)
{
/* Nvidia EGL doesn't need X11 for p-buffer surface */
display = getPlatformDisplay(EGL_PLATFORM_DEVICE_EXT, devices[0], 0);
configAttribs[1] = EGL_PBUFFER_BIT;
pBuffer = 1;
}
}
if (display==EGL_NO_DISPLAY)
{
/* Fall-back to X11 surface, works on Mesa */
display = getDisplay(EGL_DEFAULT_DISPLAY);
}
if (display == EGL_NO_DISPLAY)
return GL_TRUE;
eglewInit(display);
if (bindAPI(EGL_OPENGL_API) != EGL_TRUE)
return GL_TRUE;
if (chooseConfig(display, configAttribs, &config, 1, &numConfig) != EGL_TRUE || (numConfig != 1))
return GL_TRUE;
ctx = createContext(display, config, EGL_NO_CONTEXT, pBuffer ? contextAttribs : NULL);
if (NULL == ctx)
return GL_TRUE;
surface = EGL_NO_SURFACE;
/* Create a p-buffer surface if possible */
if (pBuffer && createPbufferSurface)
{
surface = createPbufferSurface(display, config, pBufferAttribs);
}
/* Create a generic surface without a native window, if necessary */
if (surface==EGL_NO_SURFACE)
{
surface = createWindowSurface(display, config, (EGLNativeWindowType) NULL, NULL);
}
#if 0
if (surface == EGL_NO_SURFACE)
return GL_TRUE;
#endif
if (makeCurrent(display, surface, surface, ctx) != EGL_TRUE)
return GL_TRUE;
return GL_FALSE;
}
void glewDestroyContext ()
{
if (NULL != ctx) eglDestroyContext(display, ctx);
}
#elif defined(GLEW_OSMESA)
OSMesaContext ctx;
static const GLint osmFormat = GL_UNSIGNED_BYTE;
static const GLint osmWidth = 640;
static const GLint osmHeight = 480;
static GLubyte *osmPixels = NULL;
GLboolean glewCreateContext (struct createParams *params)
{
ctx = OSMesaCreateContext(OSMESA_RGBA, NULL);
if (NULL == ctx) return GL_TRUE;
if (NULL == osmPixels)
{
osmPixels = (GLubyte *) calloc(osmWidth*osmHeight*4, 1);
}
if (!OSMesaMakeCurrent(ctx, osmPixels, GL_UNSIGNED_BYTE, osmWidth, osmHeight))
{
return GL_TRUE;
}
return GL_FALSE;
}
void glewDestroyContext ()
{
if (NULL != ctx) OSMesaDestroyContext(ctx);
}
#elif defined(_WIN32)
HWND wnd = NULL;
HDC dc = NULL;
HGLRC rc = NULL;
GLboolean glewCreateContext (struct createParams* params)
{
WNDCLASS wc;
PIXELFORMATDESCRIPTOR pfd;
/* register window class */
ZeroMemory(&wc, sizeof(WNDCLASS));
wc.hInstance = GetModuleHandle(NULL);
wc.lpfnWndProc = DefWindowProc;
wc.lpszClassName = "GLEW";
if (0 == RegisterClass(&wc)) return GL_TRUE;
/* create window */
wnd = CreateWindow("GLEW", "GLEW", 0, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, NULL, NULL, GetModuleHandle(NULL), NULL);
if (NULL == wnd) return GL_TRUE;
/* get the device context */
dc = GetDC(wnd);
if (NULL == dc) return GL_TRUE;
/* find pixel format */
ZeroMemory(&pfd, sizeof(PIXELFORMATDESCRIPTOR));
if (params->pixelformat == -1) /* find default */
{
pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR);
pfd.nVersion = 1;
pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL;
params->pixelformat = ChoosePixelFormat(dc, &pfd);
if (params->pixelformat == 0) return GL_TRUE;
}
/* set the pixel format for the dc */
if (FALSE == SetPixelFormat(dc, params->pixelformat, &pfd)) return GL_TRUE;
/* create rendering context */
rc = wglCreateContext(dc);
if (NULL == rc) return GL_TRUE;
if (FALSE == wglMakeCurrent(dc, rc)) return GL_TRUE;
if (params->major || params->profile || params->flags)
{
HGLRC oldRC = rc;
int contextAttrs[20];
int i;
wglewInit();
/* Intel HD 3000 has WGL_ARB_create_context, but not WGL_ARB_create_context_profile */
if (!wglewGetExtension("WGL_ARB_create_context"))
return GL_TRUE;
i = 0;
if (params->major)
{
contextAttrs[i++] = WGL_CONTEXT_MAJOR_VERSION_ARB;
contextAttrs[i++] = params->major;
contextAttrs[i++] = WGL_CONTEXT_MINOR_VERSION_ARB;
contextAttrs[i++] = params->minor;
}
if (params->profile)
{
contextAttrs[i++] = WGL_CONTEXT_PROFILE_MASK_ARB;
contextAttrs[i++] = params->profile;
}
if (params->flags)
{
contextAttrs[i++] = WGL_CONTEXT_FLAGS_ARB;
contextAttrs[i++] = params->flags;
}
contextAttrs[i++] = 0;
rc = wglCreateContextAttribsARB(dc, 0, contextAttrs);
if (NULL == rc) return GL_TRUE;
if (!wglMakeCurrent(dc, rc)) return GL_TRUE;
wglDeleteContext(oldRC);
}
return GL_FALSE;
}
void glewDestroyContext ()
{
if (NULL != rc) wglMakeCurrent(NULL, NULL);
if (NULL != rc) wglDeleteContext(rc);
if (NULL != wnd && NULL != dc) ReleaseDC(wnd, dc);
if (NULL != wnd) DestroyWindow(wnd);
UnregisterClass("GLEW", GetModuleHandle(NULL));
}
/* ------------------------------------------------------------------------ */
#elif defined(__APPLE__) && !defined(GLEW_APPLE_GLX)
#include <OpenGL/OpenGL.h>
#include <OpenGL/CGLTypes.h>
CGLContextObj ctx, octx;
GLboolean glewCreateContext (struct createParams *params)
{
CGLPixelFormatAttribute contextAttrs[20];
int i;
CGLPixelFormatObj pf;
GLint npix;
CGLError error;
i = 0;
contextAttrs[i++] = kCGLPFAAccelerated; /* No software rendering */
/* MAC_OS_X_VERSION_10_7 == 1070 */
#if MAC_OS_X_VERSION_MIN_REQUIRED >= 1070
if (params->profile & GL_CONTEXT_CORE_PROFILE_BIT)
{
if ((params->major==3 && params->minor>=2) || params->major>3)
{
contextAttrs[i++] = kCGLPFAOpenGLProfile; /* OSX 10.7 Lion onwards */
contextAttrs[i++] = (CGLPixelFormatAttribute) kCGLOGLPVersion_3_2_Core; /* 3.2 Core Context */
}
}
#endif
contextAttrs[i++] = 0;
error = CGLChoosePixelFormat(contextAttrs, &pf, &npix);
if (error) return GL_TRUE;
error = CGLCreateContext(pf, NULL, &ctx);
if (error) return GL_TRUE;
CGLReleasePixelFormat(pf);
octx = CGLGetCurrentContext();
error = CGLSetCurrentContext(ctx);
if (error) return GL_TRUE;
/* Needed for Regal on the Mac */
#if defined(GLEW_REGAL) && defined(__APPLE__)
RegalMakeCurrent(ctx);
#endif
return GL_FALSE;
}
void glewDestroyContext ()
{
CGLSetCurrentContext(octx);
CGLReleaseContext(ctx);
}
/* ------------------------------------------------------------------------ */
#elif defined(__HAIKU__)
GLboolean glewCreateContext (struct createParams *params)
{
/* TODO: Haiku: We need to call C++ code here */
return GL_FALSE;
}
void glewDestroyContext ()
{
/* TODO: Haiku: We need to call C++ code here */
}
/* ------------------------------------------------------------------------ */
#else /* __UNIX || (__APPLE__ && GLEW_APPLE_GLX) */
Display* dpy = NULL;
XVisualInfo* vi = NULL;
XVisualInfo* vis = NULL;
GLXContext ctx = NULL;
Window wnd = 0;
Colormap cmap = 0;
GLboolean glewCreateContext (struct createParams *params)
{
int attrib[] = { GLX_RGBA, GLX_DOUBLEBUFFER, None };
int erb, evb;
XSetWindowAttributes swa;
/* open display */
dpy = XOpenDisplay(params->display);
if (NULL == dpy) return GL_TRUE;
/* query for glx */
if (!glXQueryExtension(dpy, &erb, &evb)) return GL_TRUE;
/* choose visual */
if (params->visual == -1)
{
vi = glXChooseVisual(dpy, DefaultScreen(dpy), attrib);
if (NULL == vi) return GL_TRUE;
params->visual = (int)XVisualIDFromVisual(vi->visual);
}
else
{
int n_vis, i;
vis = XGetVisualInfo(dpy, 0, NULL, &n_vis);
for (i=0; i<n_vis; i++)
{
if ((int)XVisualIDFromVisual(vis[i].visual) == params->visual)
vi = &vis[i];
}
if (vi == NULL) return GL_TRUE;
}
/* create context */
ctx = glXCreateContext(dpy, vi, None, True);
if (NULL == ctx) return GL_TRUE;
/* create window */
/*wnd = XCreateSimpleWindow(dpy, RootWindow(dpy, vi->screen), 0, 0, 1, 1, 1, 0, 0);*/
cmap = XCreateColormap(dpy, RootWindow(dpy, vi->screen), vi->visual, AllocNone);
swa.border_pixel = 0;
swa.colormap = cmap;
wnd = XCreateWindow(dpy, RootWindow(dpy, vi->screen),
0, 0, 1, 1, 0, vi->depth, InputOutput, vi->visual,
CWBorderPixel | CWColormap, &swa);
/* make context current */
if (!glXMakeCurrent(dpy, wnd, ctx)) return GL_TRUE;
if (params->major || params->profile || params->flags)
{
GLXContext oldCtx = ctx;
GLXFBConfig *FBConfigs;
int FBConfigAttrs[] = { GLX_FBCONFIG_ID, 0, None };
int contextAttrs[20];
int nelems, i;
glxewInit();
if (!glxewGetExtension("GLX_ARB_create_context"))
return GL_TRUE;
if (glXQueryContext(dpy, oldCtx, GLX_FBCONFIG_ID, &FBConfigAttrs[1]))
return GL_TRUE;
FBConfigs = glXChooseFBConfig(dpy, vi->screen, FBConfigAttrs, &nelems);
if (nelems < 1)
return GL_TRUE;
i = 0;
if (params->major)
{
contextAttrs[i++] = GLX_CONTEXT_MAJOR_VERSION_ARB;
contextAttrs[i++] = params->major;
contextAttrs[i++] = GLX_CONTEXT_MINOR_VERSION_ARB;
contextAttrs[i++] = params->minor;
}
if (params->profile)
{
contextAttrs[i++] = GLX_CONTEXT_PROFILE_MASK_ARB;
contextAttrs[i++] = params->profile;
}
if (params->flags)
{
contextAttrs[i++] = GLX_CONTEXT_FLAGS_ARB;
contextAttrs[i++] = params->flags;
}
contextAttrs[i++] = None;
ctx = glXCreateContextAttribsARB(dpy, *FBConfigs, NULL, True, contextAttrs);
if (NULL == ctx) return GL_TRUE;
if (!glXMakeCurrent(dpy, wnd, ctx)) return GL_TRUE;
glXDestroyContext(dpy, oldCtx);
XFree(FBConfigs);
}
return GL_FALSE;
}
void glewDestroyContext ()
{
if (NULL != dpy && NULL != ctx) glXDestroyContext(dpy, ctx);
if (NULL != dpy && 0 != wnd) XDestroyWindow(dpy, wnd);
if (NULL != dpy && 0 != cmap) XFreeColormap(dpy, cmap);
if (NULL != vis)
XFree(vis);
else if (NULL != vi)
XFree(vi);
if (NULL != dpy) XCloseDisplay(dpy);
}
#endif /* __UNIX || (__APPLE__ && GLEW_APPLE_GLX) */
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