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2016-03-30glx: Implement GLX_EXT_libglvnd (v2)Adam Jackson7-0/+42
For the dri2 backend, we depend on xfree86 already, so we can walk the options for the screen looking for a vendor string from xorg.conf. For the swrast backend we don't have that luxury, so just say mesa. This extension isn't really meaningful on Windows or OSX yet (since libglvnd isn't really functional there yet), so on those platforms we don't say anything and return BadValue for the token from QueryServerString. v2: Use xnf* allocators when parsing options (Eric and Emil) Reviewed-by: Eric Anholt <eric@anholt.net> Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Signed-off-by: Adam Jackson <ajax@redhat.com>
2016-03-30glx: Compute the GLX extension string from __glXScreenInitAdam Jackson3-24/+8
Now that the enable bits are in the screen base class we can compute this in one place, rather than making every backend do it. Reviewed-by: Eric Anholt <eric@anholt.net> Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Signed-off-by: Adam Jackson <ajax@redhat.com>
2016-03-30glx: Move glx_enable_bits up to the GLX screen base classAdam Jackson3-22/+25
Reviewed-by: Eric Anholt <eric@anholt.net> Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Signed-off-by: Adam Jackson <ajax@redhat.com>
2016-03-30glx: Enable GLX 1.4 unconditionallyAdam Jackson6-49/+4
Reviewed-by: Eric Anholt <eric@anholt.net> Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Signed-off-by: Adam Jackson <ajax@redhat.com>
2016-03-30glx: Enable GLX_SGI_make_current_read in the coreAdam Jackson3-9/+1
GLX 1.3 implies equivalent functionality, so this is safe to enable unconditionally, and bindContext always takes both drawable and readable arguments in any case. Mesa stopped exporting the __DRI_READ_DRAWABLE extension in 8.0 (when the DRI1 drivers were removed) so this will restore the extension string. Reviewed-by: Eric Anholt <eric@anholt.net> Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Signed-off-by: Adam Jackson <ajax@redhat.com>
2016-03-30glx: Don't enable EXT_texture_from_pixmap unconditionallyAdam Jackson3-3/+5
Not all backend servers implement this. Those that don't happen to not use __glXInitExtensionEnableBits, but we'd like that to change, so fix it up before we switch them over. Reviewed-by: Eric Anholt <eric@anholt.net> Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Signed-off-by: Adam Jackson <ajax@redhat.com>
2016-03-30glx: Remove server-side mention of GLX_MESA_swap_controlAdam Jackson1-3/+1
This extension is direct-only and has no GLX protocol. We don't even track an enable bit for it, trying to turn it on is pointless. Reviewed-by: Eric Anholt <eric@anholt.net> Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Signed-off-by: Adam Jackson <ajax@redhat.com>
2016-03-30glx: Remove default server glx extension stringAdam Jackson3-23/+1
This existed only to be strdup'd and then immediately freed. Reviewed-by: Eric Anholt <eric@anholt.net> Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Signed-off-by: Adam Jackson <ajax@redhat.com>
2016-03-10glx: Implement GLX_EXT_fbconfig_packed_floatAdam Jackson4-0/+9
The tokens for this are already defined by GLX_ARB_fbconfig_float, which we already support, so just add the extension to the list and let the driver provide those configs if it wants. Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Adam Jackson <ajax@redhat.com>
2016-03-10glx: Implement GLX_EXT_stereo_treeAdam Jackson3-1/+11
This is correct as it is, but only because we know no DRI drivers implement stereo. v2: Use new ATTRIB macro Reviewed-by: James Jones <jajones@nvidia.com> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Adam Jackson <ajax@redhat.com>
2016-03-10glx: Add GLX_SCREEN to the GetDrawableAttributes responseAdam Jackson1-1/+2
libglvnd would like to use this to map from drawable to screen, so it can know which driver to dispatch to. Refer to the spec proposal here: https://lists.freedesktop.org/archives/mesa-dev/2016-March/109543.html Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Adam Jackson <ajax@redhat.com>
2016-03-10glx: Macroize building the attribute list in DoGetDrawableAttributesAdam Jackson1-23/+16
No functional change, just a little easier to read and harder to get wrong. Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Adam Jackson <ajax@redhat.com>
2016-03-08glx: don't call pGlxDraw->destroy() if AddResource failsJulien Cristau1-7/+2
AddResource will have called DrawableGone, which takes care of the destruction. Reviewed-by: Rémi Cardona <remi@gentoo.org> Signed-off-by: Julien Cristau <jcristau@debian.org>
2016-01-21glx: Fix GLX_EXT_create_context_es2_profile supportAdam Jackson5-26/+13
As of v4 of this extension, any GLES version number may be requested (to enable GLES3 and later). To comply with this, simply remove the API version checks and leave it to the DRI driver to validate. This happens to also enable using GLES1 in direct contexts, so if that's the dire situation you find yourself in, your client driver at least stands a chance of working. v4 also specifies that both extension strings should be advertised for compatibility with clients written against v1 of the extension spec, so add the es_profile bit to the extension list and enable it whenever we would enable es2_profile. Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Adam Jackson <ajax@redhat.com>
2015-10-19glx: Fix header length error checking in __glXDisp_RenderLargeJeremy Huddleston1-1/+1
glxcmds.c:2206:46: warning: comparison of unsigned expression < 0 is always false [-Wtautological-compare,Semantic Issue] if ((cmdlen = safe_pad(hdr->length)) < 0) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~ Reviewed-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
2015-10-06glx: Synchronize Xserver glx/rensize.c with mesa src/glx/compsize.cJon TURNEY1-0/+1
Noticed while investigating https://bugs.freedesktop.org/show_bug.cgi?id=30102 Reviewed-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
2015-09-23glx: fix regression with copy sub buffer disappearingDave Airlie1-2/+3
So copy sub buffer isn't a core extensions it's a driver extension which means we are using totally the wrong interface to query for it here, which means bad things happen when you roll out this code, for instance MESA_copy_sub_buffer stops working. This is just the hack I'm sticking in Fedora to avoid the regression for now, but hopefully will inspire us. Reviewed-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-07-08glx: Implement GLX_ARB_context_flush_controlAdam Jackson7-2/+57
This extension allows clients to opt out of the implicit glFlush on context release, which is quite nice for performance for clients using multiple contexts. The server doesn't really need to be aware of the client's decision, at least for direct contexts, but it does need to not reject the context attribute out of hand. This patch won't do anything unless built against a Mesa that defines the __DRI2_FLUSH_CONTROL extension (and a new enough glxext.h, but that's been there since 10.3 at least). Reviewed-by: James Jones <jajones@nvidia.com> Signed-off-by: Adam Jackson <ajax@redhat.com>
2015-07-08glx/swrast: Do more GLX extension setupAdam Jackson1-3/+34
This gets you nice things like core contexts when using Xvfb. Also, no, MESA_copy_sub_buffer is not enabled automatically. Reviewed-by: James Jones <jajones@nvidia.com> Reviewed-by: Jon Turney <jon.turney@dronecode.org.uk> Signed-off-by: Adam Jackson <ajax@redhat.com>
2015-05-14Revert "glx/dri2: Disable AIGLX if indirect GLX is disabled"Keith Packard1-3/+0
This reverts commit d61ae18074e53c2cdfb13cc37693b526160d6ca7. If the DRI2 provider is disabled, then we don't advertise the correct GLX extensions to clients, and things like GLES fail. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=90442 Reviewed-by: Eric Anholt <eric@anholt.net> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
2015-05-11Merge remote-tracking branch 'ajax/xserver-next'Keith Packard1-0/+3
2015-05-07glx/dri2: Disable AIGLX if indirect GLX is disabledChris Wilson1-0/+3
There is no point in setting up the acceleration for indirect GLX if indirect GLX is itself disabled. Reviewed-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2015-04-21Convert glamor & glx to new *allocarray functionsAlan Coopersmith2-10/+8
v2: fixup whitespace Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com> Reviewed-by: Matt Turner <mattst88@gmail.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
2014-12-10glx: Add hack for GLX-1.2-style naked windows to GetDrawableAttributesAdam Jackson1-19/+29
Some people like to call this on bare Window XIDs and expect reasonable results. I sure wish they wouldn't, but since they do, if we're given a window without any glx decoration just fill in as much as we can. This means you won't actually get an answer for GLX_FBCONFIG_ID and friends, but there's not much to be done about that, and it matches what NVIDIA's driver seems to do. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=54080 Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Adam Jackson <ajax@redhat.com>
2014-12-10glx: Dynamically compute attribute slot in GetDrawableAttributesAdam Jackson1-24/+25
No functional change. Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Adam Jackson <ajax@redhat.com>
2014-12-09glx: Add implementation of __GLXContext->loseCurrent for direct ctxtsNeil Roberts1-0/+7
This adds a dummy implementation for the loseCurrent function in __GLXContext for direct contexts which just returns GL_TRUE. Without this then the X server can crash if receives a MakeCurrent message for a direct context because it will attempt to call loseCurrent when cleaning up the client in the callback for ClientStateGone. [ajax: added assumed s-o-b line] Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=86531 Reviewed-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Neil Roberts <neil@linux.intel.com> Signed-off-by: Keith Packard <keithp@keithp.com>
2014-12-09glx: Can't mix declarations and code in X.org sources [CVE-2014-8098 pt. 9]Keith Packard1-1/+2
We're using compiler compatibility settings which generate warnings when a variable is declared after the first statement. Signed-off-by: Keith Packard <keithp@keithp.com> Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com> Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2014-12-08glx: Fix mask truncation in __glXGetAnswerBuffer [CVE-2014-8093 6/6]Robert Morell1-1/+1
On a system where sizeof(unsigned) != sizeof(intptr_t), the unary bitwise not operation will result in a mask that clears all high bits from temp_buf in the expression: temp_buf = (temp_buf + mask) & ~mask; Signed-off-by: Robert Morell <rmorell@nvidia.com> Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com> Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2014-12-08glx: Pass remaining request length into ->varsize (v2) [CVE-2014-8098 8/8]Adam Jackson5-154/+205
v2: Handle more multiplies in indirect_reqsize.c (Julien Cristau) Reviewed-by: Julien Cristau <jcristau@debian.org> Reviewed-by: Michal Srb <msrb@suse.com> Reviewed-by: Andy Ritger <aritger@nvidia.com> Signed-off-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2014-12-08glx: Length checking for non-generated single requests (v2) [CVE-2014-8098 7/8]Adam Jackson5-29/+95
v2: Fix single versus vendor-private length checking for ARB_imaging subset extensions. (Julien Cristau) v3: Fix single versus vendor-private length checking for ARB_imaging subset extensions. (Julien Cristau) Reviewed-by: Michal Srb <msrb@suse.com> Reviewed-by: Andy Ritger <aritger@nvidia.com> Signed-off-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Julien Cristau <jcristau@debian.org> Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2014-12-08glx: Length-checking for non-generated vendor private requests ↵Adam Jackson2-0/+4
[CVE-2014-8098 6/8] Reviewed-by: Keith Packard <keithp@keithp.com> Reviewed-by: Michal Srb <msrb@suse.com> Reviewed-by: Andy Ritger <aritger@nvidia.com> Signed-off-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2014-12-08glx: Request length checks for SetClientInfoARB [CVE-2014-8098 5/8]Adam Jackson1-5/+14
Reviewed-by: Keith Packard <keithp@keithp.com> Reviewed-by: Julien Cristau <jcristau@debian.org> Reviewed-by: Michal Srb <msrb@suse.com> Reviewed-by: Andy Ritger <aritger@nvidia.com> Signed-off-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2014-12-08glx: Top-level length checking for swapped VendorPrivate requests ↵Adam Jackson1-0/+4
[CVE-2014-8098 4/8] Reviewed-by: Keith Packard <keithp@keithp.com> Reviewed-by: Julien Cristau <jcristau@debian.org> Reviewed-by: Michal Srb <msrb@suse.com> Reviewed-by: Andy Ritger <aritger@nvidia.com> Signed-off-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2014-12-08glx: Length checking for RenderLarge requests (v2) [CVE-2014-8098 3/8]Adam Jackson1-23/+34
This is a half-measure until we start passing request length into the varsize function, but it's better than the nothing we had before. v2: Verify that there's at least a large render header's worth of dataBytes (Julien Cristau) Reviewed-by: Michal Srb <msrb@suse.com> Reviewed-by: Andy Ritger <aritger@nvidia.com> Signed-off-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2014-12-08glx: Integer overflow protection for non-generated render requests (v3) ↵Adam Jackson1-36/+41
[CVE-2014-8093 5/6] v2: Fix constants in __glXMap2fReqSize (Michal Srb) Validate w/h/d for proxy targets too (Keith Packard) v3: Fix Map[12]Size to correctly reject order == 0 (Julien Cristau) Reviewed-by: Keith Packard <keithp@keithp.com> Reviewed-by: Michal Srb <msrb@suse.com> Reviewed-by: Andy Ritger <aritger@nvidia.com> Signed-off-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2014-12-08glx: Length checking for GLXRender requests (v2) [CVE-2014-8098 2/8]Julien Cristau1-11/+10
v2: Remove can't-happen comparison for cmdlen < 0 (Michal Srb) Reviewed-by: Adam Jackson <ajax@redhat.com> Reviewed-by: Michal Srb <msrb@suse.com> Reviewed-by: Andy Ritger <aritger@nvidia.com> Signed-off-by: Julien Cristau <jcristau@debian.org> Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2014-12-08glx: Add safe_{add,mul,pad} (v3) [CVE-2014-8093 4/6]Adam Jackson1-0/+41
These are paranoid about integer overflow, and will return -1 if their operation would overflow a (signed) integer or if either argument is negative. Note that RenderLarge requests are sized with a uint32_t so in principle this could be sketchy there, but dix limits bigreqs to 128M so you shouldn't ever notice, and honestly if you're sending more than 2G of rendering commands you're already doing something very wrong. v2: Use INT_MAX for consistency with the rest of the server (jcristau) v3: Reject negative arguments (anholt) Reviewed-by: Keith Packard <keithp@keithp.com> Reviewed-by: Julien Cristau <jcristau@debian.org> Reviewed-by: Michal Srb <msrb@suse.com> Reviewed-by: Andy Ritger <aritger@nvidia.com> Signed-off-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2014-12-08glx: Fix image size computation for EXT_texture_integer [CVE-2014-8098 1/8]Adam Jackson1-0/+10
Without this we'd reject the request with BadLength. Note that some old versions of Mesa had a bug in the same place, and would _send_ zero bytes of image data; these will now be rejected, correctly. Reviewed-by: Keith Packard <keithp@keithp.com> Reviewed-by: Julien Cristau <jcristau@debian.org> Reviewed-by: Michal Srb <msrb@suse.com> Reviewed-by: Andy Ritger <aritger@nvidia.com> Signed-off-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2014-12-08glx: Additional paranoia in __glXGetAnswerBuffer / __GLX_GET_ANSWER_BUFFER ↵Adam Jackson2-2/+8
(v2) [CVE-2014-8093 3/6] If the computed reply size is negative, something went wrong, treat it as an error. v2: Be more careful about size_t being unsigned (Matthieu Herrb) v3: SIZE_MAX not SIZE_T_MAX (Alan Coopersmith) Reviewed-by: Julien Cristau <jcristau@debian.org> Reviewed-by: Michal Srb <msrb@suse.com> Reviewed-by: Andy Ritger <aritger@nvidia.com> Signed-off-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2014-12-08glx: Be more strict about rejecting invalid image sizes [CVE-2014-8093 2/6]Adam Jackson2-16/+16
Before this we'd just clamp the image size to 0, which was just hideously stupid; if the parameters were such that they'd overflow an integer, you'd allocate a small buffer, then pass huge values into (say) ReadPixels, and now you're scribbling over arbitrary server memory. Reviewed-by: Keith Packard <keithp@keithp.com> Reviewed-by: Julien Cristau <jcristau@debian.org> Reviewed-by: Michal Srb <msrb@suse.com> Reviewed-by: Andy Ritger <aritger@nvidia.com> Signed-off-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2014-12-08glx: Be more paranoid about variable-length requests [CVE-2014-8093 1/6]Adam Jackson1-2/+2
If the size computation routine returns -1 we should just reject the request outright. Clamping it to zero could give an attacker the opportunity to also mangle cmdlen in such a way that the subsequent length check passes, and the request would get executed, thus passing data we wanted to reject to the renderer. Reviewed-by: Keith Packard <keithp@keithp.com> Reviewed-by: Julien Cristau <jcristau@debian.org> Reviewed-by: Michal Srb <msrb@suse.com> Reviewed-by: Andy Ritger <aritger@nvidia.com> Signed-off-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2014-12-05glx: Fix crash when a client exits without deleting GL contextsJon TURNEY2-3/+3
With the previous patches applied, we now have crash due to use-after-free when a client exits without deleting all it's GL contexts On client exit, CloseDownClient first calls glxClientCallback() with ClientStateGone, which calls __glXFreeContext() directly. Subsequently CloseDownClient() frees all the clients resources, which leads to ContextGone() being called for a context resource where the context has already been freed. Fix this by modifiying glxClientCallback() to free the context resource. Also make __glXFreeContext() static, as calling it directly leads to this problem, instead the context resource should be released. With the previous patches applied, this can be demonstrated with e.g. glxinfo, which doesn't delete it's context before exit. Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk> Reviewed-by: Adam Jackson <ajax@redhat.com>
2014-12-05glx: Flush context which is being made non-current due to drawable going awayJon TURNEY1-0/+3
Some sequences of glean tests fail with GLXBadCurrentWindow when using indirect rendering, e.g. glean -t 'fpexceptions getString'. Flush a context which is being made non-current due to the drawable on which is it is current going away. Waiting until another context is made current is too late, as the drawable no longer exists. v2: Rewrite for direct GL dispatch v3: Inline FlushContext(), doesn't need to be a separate function e.g. LIBGL_ALWAYS_INDIRECT=1 ./glean -r results -o --quick -t "fpexceptions getString" fails with a BadContextTag error. Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk> Reviewed-by: Adam Jackson <ajax@redhat.com>
2014-12-05Revert "glx: Simplify glXDestroyContext"Jon TURNEY1-1/+3
This reverts commit 7f5adf73a0f9a951a6df201532b4031d38054369. This seems to miss the whole point of the idExists flag, as it makes the lifetime of that being true the same as the lifetime of the Context resource. The previously current context tag is always given in a MakeContextCurrent request, even if that context tag is no longer valid (for example, the context has been deleted), so this leads to BadContextTag errors. See fd.o bug #30089 for the makecurrenttest.c testcase, and some discussion of previous manifestations of this bug. Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk> Reviewed-by: Adam Jackson <ajax@redhat.com>
2014-11-12Drop trailing whitespacesPeter Hutterer20-63/+63
sed -i "s/[ ]\+$//g" **/*.(c|h) happy reviewing... git diff -w is an empty diff. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2014-10-23Allocate enough room for both reset & flags attributesAlan Coopersmith1-1/+3
ctx_attribs had room for 3 pairs of attributes, but if both flags & reset attributes were being returned it was storing 4 pairs in the array. Found by Coverity #53442: Out-of-bounds write This could cause an immediate crash or incorrect computations. In create_driver_context: Out-of-bounds write to a buffer (CWE-119) Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com> Reviewed-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Keith Packard <keithp@keithp.com>
2014-10-09glx: check return from __glXGetAnswerBufferKeith Packard2-0/+51
This function can return NULL; make sure every caller tests for that. Reviewed-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Keith Packard <keithp@keithp.com>
2014-09-11glx/present: Only send GLX_BufferSwapComplete for PresentCompleteKindPixmapKeith Packard1-2/+5
Present didn't provide the 'kind' argument to the present_complete_notify hook that GLX uses to construct GLX_BufferSwapComplete events, so GLX was reporting events for PresentCompleteKindMSC notifications, which resulted in duplicate GLX_BufferSwapComplete events and crashes in clutter. See the gnome bug: https://bugzilla.gnome.org/show_bug.cgi?id=733282 Signed-off-by: Keith Packard <keithp@keithp.com> Reviewed-by: Eric Anholt <eric@anholt.net>
2014-09-11glx: Fix 'y ' value in swrastGetDrawableInfo()Maks Naumov1-1/+1
Signed-off-by: Maks Naumov <maksqwe1@ukr.net> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Keith Packard <keithp@keithp.com>
2014-05-22glx: Require at least one True/DirectColor visualAdam Jackson1-0/+21
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 <ajax@redhat.com> Signed-off-by: Keith Packard <keithp@keithp.com>
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