Mesa no longer supports rendering to anything less. GLX 1.2 requires that the server advertise at least one GLX visual. GLX 1.3 and 1.4 are more subtle: they require at least one fbconfig capable of window rendering, and _also_ require that window-capable fbconfigs have a non-zero value for the GLX_VISUAL_ID. In either case we should refuse to init GLX if there's not at least one GL-capable visual on at least one screen.
Signed-off-by: Adam Jackson <[email protected]> --- glx/glxext.c | 21 +++++++++++++++++++++ 1 files changed, 21 insertions(+), 0 deletions(-) diff --git a/glx/glxext.c b/glx/glxext.c index bc7fe82..078a4f7 100644 --- a/glx/glxext.c +++ b/glx/glxext.c @@ -315,6 +315,23 @@ GlxPushProvider(__GLXprovider * provider) __glXProviderStack = provider; } +static Bool +checkScreenVisuals(void) +{ + int i, j; + + for (i = 0; i < screenInfo.numScreens; i++) { + ScreenPtr screen = screenInfo.screens[i]; + for (j = 0; j < screen->numVisuals; j++) { + if (screen->visuals[j].class == TrueColor || + screen->visuals[j].class == DirectColor) + return True; + } + } + + return False; +} + /* ** Initialize the GLX extension. */ @@ -333,6 +350,10 @@ GlxExtensionInit(void) *stack = &__glXDRISWRastProvider; } + /* Mesa requires at least one True/DirectColor visual */ + if (!checkScreenVisuals()) + return; + __glXContextRes = CreateNewResourceType((DeleteType) ContextGone, "GLXContext"); __glXDrawableRes = CreateNewResourceType((DeleteType) DrawableGone, -- 1.7.7.6 _______________________________________________ [email protected]: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel
