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/*
* Compton - a compositor for X11
*
* Based on `xcompmgr` - Copyright (c) 2003, Keith Packard
*
* Copyright (c) 2011-2013, Christopher Jeffrey
* See LICENSE for more information.
*
*/
#include "common.h"
#include <ctype.h>
/**
* Check if a GLX extension exists.
*/
static inline bool
glx_hasext(session_t *ps, const char *ext) {
const char *glx_exts = glXQueryExtensionsString(ps->dpy, ps->scr);
const char *pos = strstr(glx_exts, ext);
// Make sure the extension string is matched as a whole word
if (!pos
|| ((pos - glx_exts) && !isspace(*(pos - 1)))
|| (strlen(pos) > strlen(ext) && !isspace(pos[strlen(ext)]))) {
printf_errf("(): Missing OpenGL extension %s.", ext);
return false;
}
return true;
}
static inline XVisualInfo *
get_visualinfo_from_visual(session_t *ps, Visual *visual) {
XVisualInfo vreq = { .visualid = XVisualIDFromVisual(visual) };
int nitems = 0;
return XGetVisualInfo(ps->dpy, VisualIDMask, &vreq, &nitems);
}
static bool
glx_update_fbconfig(session_t *ps);
static int
glx_cmp_fbconfig(session_t *ps,
const glx_fbconfig_t *pfbc_a, const glx_fbconfig_t *pfbc_b);
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