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Don't abort if swrast library is not present

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GLX is enabled by default, but the current swrast behaviour causes X
to abort with fatal error if the swrast dri library dlopen fails.

Handle the case where the swrast library is not present, and do not
register the GLX extension unless at least one screen has a usable
GL provider.
(cherry picked from commit eff25430b4)
This commit is contained in:
Daniel Drake 2008-07-24 21:06:34 -05:00 • committed by Adam Jackson
parent 4652c51e92
commit 05472534cf
2 changed files with 25 additions and 14 deletions
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2
glx/glxdriswrast.c
View file

@ -532,7 +532,7 @@ __glXDRIscreenProbe(ScreenPtr pScreen)
xfree(screen);
FatalError("GLX: could not load software renderer\n");
LogMessage(X_ERROR, "GLX: could not load software renderer\n");
return NULL;
}

37
glx/glxext.c
View file

@ -279,6 +279,7 @@ void GlxExtensionInit(void)
ScreenPtr pScreen;
int i;
__GLXprovider *p;
Bool glx_provided = False;
__glXContextRes = CreateNewResourceType((DeleteType)ContextGone);
__glXDrawableRes = CreateNewResourceType((DeleteType)DrawableGone);
@ -289,6 +290,29 @@ void GlxExtensionInit(void)
if (!AddCallback (&ClientStateCallback, glxClientCallback, 0))
return;
for (i = 0; i < screenInfo.numScreens; i++) {
pScreen = screenInfo.screens[i];
for (p = __glXProviderStack; p != NULL; p = p->next) {
if (p->screenProbe(pScreen) != NULL) {
LogMessage(X_INFO,
"GLX: Initialized %s GL provider for screen %d\n",
p->name, i);
break;
}
}
if (!p)
LogMessage(X_INFO,
"GLX: no usable GL providers found for screen %d\n", i);
else
glx_provided = True;
}
/* don't register extension if GL is not provided on any screen */
if (!glx_provided)
return;
/*
** Add extension to server extensions.
*/
@ -306,19 +330,6 @@ void GlxExtensionInit(void)
}
__glXErrorBase = extEntry->errorBase;
for (i = 0; i < screenInfo.numScreens; i++) {
pScreen = screenInfo.screens[i];
for (p = __glXProviderStack; p != NULL; p = p->next) {
if (p->screenProbe(pScreen) != NULL) {
LogMessage(X_INFO,
"GLX: Initialized %s GL provider for screen %d\n",
p->name, i);
break;
}
}
}
}
/************************************************************************/