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glxinfo: Try creating a GLX context using an fbconfig if no visuals are available.

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This commit is contained in:
Kristian Høgsberg 2007-10-18 15:19:08 -04:00
parent 950fff0f9a
commit a074857cdc
1 changed files with 46 additions and 13 deletions
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59
progs/xdemos/glxinfo.c
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@ -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);