diff options
Diffstat (limited to 'progs')
-rw-r--r-- | progs/xdemos/glxinfo.c | 59 |
1 files changed, 46 insertions, 13 deletions
diff --git a/progs/xdemos/glxinfo.c b/progs/xdemos/glxinfo.c index 329cbb3e0af..db7d1ed08e7 100644 --- a/progs/xdemos/glxinfo.c +++ b/progs/xdemos/glxinfo.c @@ -395,20 +395,61 @@ print_screen_info(Display *dpy, int scrnum, Bool allowDirect, GLboolean limits) XSetWindowAttributes attr; unsigned long mask; Window root; - GLXContext ctx; + GLXContext ctx = NULL; XVisualInfo *visinfo; int width = 100, height = 100; root = RootWindow(dpy, scrnum); visinfo = glXChooseVisual(dpy, scrnum, attribSingle); - if (!visinfo) { + if (!visinfo) visinfo = glXChooseVisual(dpy, scrnum, attribDouble); - if (!visinfo) { - fprintf(stderr, "Error: couldn't find RGB GLX visual\n"); - return; + + if (visinfo) + ctx = glXCreateContext( dpy, visinfo, NULL, allowDirect ); + +#ifdef GLX_VERSION_1_3 + { + int fbAttribSingle[] = { + GLX_RENDER_TYPE, GLX_RGBA_BIT, + GLX_RED_SIZE, 1, + GLX_GREEN_SIZE, 1, + GLX_BLUE_SIZE, 1, + GLX_DOUBLEBUFFER, GL_TRUE, + None }; + int fbAttribDouble[] = { + GLX_RENDER_TYPE, GLX_RGBA_BIT, + GLX_RED_SIZE, 1, + GLX_GREEN_SIZE, 1, + GLX_BLUE_SIZE, 1, + None }; + GLXFBConfig *configs = NULL; + int nConfigs; + + if (!visinfo) + configs = glXChooseFBConfig(dpy, scrnum, fbAttribSingle, &nConfigs); + if (!visinfo) + configs = glXChooseFBConfig(dpy, scrnum, fbAttribDouble, &nConfigs); + + if (configs) { + visinfo = glXGetVisualFromFBConfig(dpy, configs[0]); + ctx = glXCreateNewContext(dpy, configs[0], GLX_RGBA_TYPE, NULL, allowDirect); + XFree(configs); } } +#endif + + if (!visinfo) { + fprintf(stderr, "Error: couldn't find RGB GLX visual or fbconfig\n"); + return; + } + + if (!ctx) { + fprintf(stderr, "Error: glXCreateContext failed\n"); + XFree(visinfo); + XDestroyWindow(dpy, win); + return; + } attr.background_pixel = 0; attr.border_pixel = 0; @@ -419,14 +460,6 @@ print_screen_info(Display *dpy, int scrnum, Bool allowDirect, GLboolean limits) 0, visinfo->depth, InputOutput, visinfo->visual, mask, &attr); - ctx = glXCreateContext( dpy, visinfo, NULL, allowDirect ); - if (!ctx) { - fprintf(stderr, "Error: glXCreateContext failed\n"); - XFree(visinfo); - XDestroyWindow(dpy, win); - return; - } - if (glXMakeCurrent(dpy, win, ctx)) { const char *serverVendor = glXQueryServerString(dpy, scrnum, GLX_VENDOR); const char *serverVersion = glXQueryServerString(dpy, scrnum, GLX_VERSION); |