/*
* Create an RGB, double-buffered window.
* Return the window and context handles.
*/
static void
make_window( Display *dpy, const char *name,
int x, int y, int width, int height, GLboolean fullscreen,
Window *winRet, GLXContext *ctxRet)
{
int attrib[] = { GLX_RGBA,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
GLX_DOUBLEBUFFER,
GLX_DEPTH_SIZE, 1,
None };
int scrnum;
XSetWindowAttributes attr;
unsigned long mask;
Window root;
Window win;
GLXContext ctx;
XVisualInfo *visinfo;
scrnum = DefaultScreen( dpy );
root = RootWindow( dpy, scrnum );
if (fullscreen) {
x = y = 0;
width = DisplayWidth( dpy, scrnum );
height = DisplayHeight( dpy, scrnum );
}
visinfo = glXChooseVisual( dpy, scrnum, attrib );
if (!visinfo) {
printf("Error: couldn't get an RGB, Double-buffered visual\n");
exit(1);
}
/* window attributes */
attr.background_pixel = 0;
attr.border_pixel = 0;
attr.colormap = XCreateColormap( dpy, root, visinfo->visual, AllocNone);
attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
win = XCreateWindow( dpy, root, 0, 0, width, height,
0, visinfo->depth, InputOutput,
visinfo->visual, mask, &attr );
/* set hints and properties */
{
XSizeHints sizehints;
sizehints.x = x;
sizehints.y = y;
sizehints.width = width;
sizehints.height = height;
sizehints.flags = USSize | USPosition;
XSetNormalHints(dpy, win, &sizehints);
XSetStandardProperties(dpy, win, name, name,
None, (char **)NULL, 0, &sizehints);
}
if (fullscreen)
no_border(dpy, win);
ctx = glXCreateContext( dpy, visinfo, NULL, True );
if (!ctx) {
printf("Error: glXCreateContext failed\n");
exit(1);
}
XFree(visinfo);
*winRet = win;
*ctxRet = ctx;
}
/*
* Create an RGB, double-buffered window.
* Return the window and context handles.
*/
static void
make_window( Display *dpy, const char *name,
int x, int y, int width, int height,
Window *winRet, GLXContext *ctxRet)
{
int attribs[64];
int i = 0;
int scrnum;
XSetWindowAttributes attr;
unsigned long mask;
Window root;
Window win;
GLXContext ctx;
XVisualInfo *visinfo;
/* Singleton attributes. */
attribs[i++] = GLX_RGBA;
attribs[i++] = GLX_DOUBLEBUFFER;
if (stereo)
attribs[i++] = GLX_STEREO;
/* Key/value attributes. */
attribs[i++] = GLX_RED_SIZE;
attribs[i++] = 1;
attribs[i++] = GLX_GREEN_SIZE;
attribs[i++] = 1;
attribs[i++] = GLX_BLUE_SIZE;
attribs[i++] = 1;
attribs[i++] = GLX_DEPTH_SIZE;
attribs[i++] = 1;
if (samples > 0) {
attribs[i++] = GLX_SAMPLE_BUFFERS;
attribs[i++] = 1;
attribs[i++] = GLX_SAMPLES;
attribs[i++] = samples;
}
attribs[i++] = None;
scrnum = DefaultScreen( dpy );
root = RootWindow( dpy, scrnum );
if (visualid) {
XVisualInfo vtemp; int n=0;
vtemp.visualid=visualid;
visinfo=XGetVisualInfo(dpy, VisualIDMask, &vtemp, &n);
} else
visinfo = glXChooseVisual(dpy, scrnum, attribs);
if (!visinfo) {
printf("Error: couldn't get an RGB, Double-buffered");
if (stereo)
printf(", Stereo");
if (samples > 0)
printf(", Multisample");
printf(" visual\n");
exit(1);
}
printf("Visual ID: 0x%.2x\n", (unsigned int)visinfo->visualid);
/* window attributes */
attr.background_pixel = 0;
attr.border_pixel = 0;
attr.colormap = XCreateColormap( dpy, root, visinfo->visual, AllocNone);
attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
/* XXX this is a bad way to get a borderless window! */
mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
win = XCreateWindow( dpy, root, x, y, width, height,
0, visinfo->depth, InputOutput,
visinfo->visual, mask, &attr );
if (fullscreen)
no_border(dpy, win);
/* set hints and properties */
{
XSizeHints sizehints;
sizehints.x = x;
sizehints.y = y;
sizehints.width = width;
sizehints.height = height;
sizehints.flags = USSize | USPosition;
XSetNormalHints(dpy, win, &sizehints);
XSetStandardProperties(dpy, win, name, name,
None, (char **)NULL, 0, &sizehints);
}
ctx = glXCreateContext( dpy, visinfo, NULL, True );
if (!ctx) {
printf("Error: glXCreateContext failed\n");
exit(1);
}
XFree(visinfo);
*winRet = win;
*ctxRet = ctx;
}
