mirror of https://github.com/yshui/picom.git
47 lines
1.1 KiB
C
47 lines
1.1 KiB
C
|
/*
|
||
|
|
* 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);
|