Hi all
I am using XVideo interface to do video post-processing work. The third
argument of XvPutImage is "Drawable d"(see below):
extern int XvPutImage (Display *display, XvPortID id, Drawable d,......);
If the "Drawable" is a window(Created by XCreateWindow) I will use hardware
overlay method to display yuv surface, if the "Drawable" is a pixmap(Created by
XCreatePixmap) I will use textured blit way. But I don't know how to
distinguish if a "Drawable" is a window or a pixmap. Jackson give me a way
below(Thank you very much, Jackson):
static int pixmap = 0;
static int pixmap_check(Display *d, void *v) { pixmap = 1; return 0; }
/* ... */
XWindowAttributes xwa;
void *old_handler = XSetErrorHandler(dpy, pixmap_check);
XGetWindowAttributes(dpy, draw, &xwa);
XSetErrorHandler(dpy, old_handler);
if (pixmap) /* whatever */
Does anyone have a better way?
Regards
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