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* Delete autotoolsDylan Baker2019-04-154-317/+0
| | | | | | | | | | Acked-by: Kenneth Graunke <[email protected]> Reviewed-by: Eric Anholt <[email protected]> Reviewed-by: Eric Engestrom <[email protected]> Acked-by: Marek Olšák <[email protected]> Acked-by: Jason Ekstrand <[email protected]> Acked-by: Bas Nieuwenhuizen <[email protected]> Acked-by: Matt Turner <[email protected]>
* drisw: Try harder to probe whether MIT-SHM worksAdam Jackson2019-04-091-4/+21
| | | | | | | | | | | | | | | | XQueryExtension merely tells you whether the extension exists, it doesn't tell you whether you're local enough for it to work. XShmQueryVersion is not enough to discover this either, you need to provoke the server to do actual work, and if it thinks you're remote it will throw BadRequest at you. So send an invalid ShmDetach and use the error code to distinguish local from remote. [airlied: fixed bug not resetting xshm_error to 0 on success, which made later stuff fail completely.] Reviewed-by: Eric Anholt <[email protected]> Reviewed-by: Dave Airlie <[email protected]> Signed-off-by: Adam Jackson <[email protected]>
* dri3: Return the current swap interval from glXGetSwapIntervalMESA().Eric Anholt2019-04-012-3/+1
| | | | | | | | | We were caching only the value set with glXSwapIntervalSGI(), missing out on the default setting of the swap interval by the loader. This fixes glxgears's warning about being vblank synchronized by default. Fixes: 9777c4234b0e ("loader: drop the [gs]et_swap_interval callbacks") Reviewed-by: Ian Romanick <[email protected]>
* glx: add support for GLX_ARB_create_context_no_error (v3)Grigori Goronzy2019-03-128-1/+96
| | | | | | | | | v2: Only reject no-error contexts for too-old GL if we're actually trying to create a no-error context (Adam Jackson) v3: Fix share contexts (Adam Jackson) Reviewed-by: Adam Jackson <[email protected]> Reviewed-by: Eric Anholt <[email protected]>
* glx/meson: use full include path for dri_interface.hEric Engestrom2019-03-085-6/+5
| | | | | | | | | | | | Everything else uses `#include "GL/internal/dri_interface.h"` instead, and this full path was even already used in other parts of GLX. While at it, nothing uses `inc_gl_internal` anymore so let's remove it as well. Signed-off-by: Eric Engestrom <[email protected]> Reviewed-by: Dylan Baker <[email protected]> Tested-by: Clayton Craft <[email protected]>
* glx: fix shared memory leak in X11Ray Zhang2019-02-281-0/+3
| | | | | | | | call XShmDetach to allow X server to free shared memory Fixes: bcd80be49a8260c2233d "drisw/glx: use XShm if possible" Signed-off-by: Ray Zhang <[email protected]> Reviewed-by: Dave Airlie <[email protected]>
* glx: add support for putimageshm2 path (v2)Dave Airlie2019-01-251-7/+23
| | | | | | | v2: pass x,0 in as the offset coords at glx level not earlier Cc: <[email protected]> Reviewed-by: Adam Jackson <[email protected]>
* glx/test: meson: assorted include fixesEmil Velikov2018-12-121-2/+2
| | | | | | | | | Swap '..' with the symbolic inc_glx and add glproto as dependency. That will pull the correct include, effectively fixing the tests on macOS. Fixes: a47c525f328 ("meson: build glx") Signed-off-by: Emil Velikov <[email protected]> Reviewed-by: Dylan Baker <[email protected]>
* glx: meson: wire up the dispatch-index-check testEmil Velikov2018-12-121-0/+5
| | | | | | | | Accidentally dropped with earlier commit.! Fixes: 4ccb9816737 ("meson: Use consistent style for tests") Signed-off-by: Emil Velikov <[email protected]> Reviewed-by: Dylan Baker <[email protected]>
* glx: meson: drop includes from a link-only libraryEmil Velikov2018-12-121-1/+0
| | | | | | | | | When producing the final libGL.so/libGLX_mesa.so we only link the local static helper lib (libglx). Thus there's no reason for the includes. Fixes: a47c525f328 ("meson: build glx") Signed-off-by: Emil Velikov <[email protected]> Reviewed-by: Dylan Baker <[email protected]>
* TODO: glx: meson: build dri based glx tests, only with -Dglx=driEmil Velikov2018-12-121-18/+15
| | | | | | | | | | | | | | | | The library itself (libGL) is only built when -Dglx=dri, yet it's accompanying tests are build even with -Dglx=xlib. Adjust the guards, so we don't build the tests when they are not applicable v2: - Reword commit message (Dylan) - Drop build_by_default hunk (Dylan) Fixes: a47c525f328 ("meson: build glx") Signed-off-by: Emil Velikov <[email protected]> Reviewed-by: Dylan Baker <[email protected]>
* glx: Fix compilation with GLX_USE_WINDOWSGLJon Turney2018-12-151-2/+4
| | | | | | | | | | | | | | | | Sadly, the GLX_USE_APPLEGL and GLX_USE_WINDOWSGL cases are not identical (because GLX_USE_WINDOWSGL uses vtables rather than a maze of ifdefs) Include <sys/time.h> again, as functions prototyped by it are used in the GLX_USE_WINDOWSGL path. Make the include guard around the __glxGetMscRate() definition match the one at it's declaration again, as it's referenced from dri_common.c which is built for GLX_USE_WINDOWSGL. Fixes: a95ec138 ("glx: mandate xf86vidmode only for "drm" dri platforms") Signed-off-by: Jon Turney <[email protected]> Reviewed-by: Emil Velikov <[email protected]>
* glx: mandate xf86vidmode only for "drm" dri platformsEmil Velikov2018-12-131-2/+4
| | | | | | | | | | | | | | | Currently we have the three dri "platforms" - drm, apple and windows. Since xf86vidmode is a thing only for the drm one, adjust the preprocessor guards and correctly check for the dependency. v2: terminate the GLX_USE_WINDOWSGL hunk Cc: Jon TURNEY <[email protected]> Fixes: 5bc509363b6 ("glx: make xf86vidmode mandatory for direct rendering") Signed-off-by: Emil Velikov <[email protected]> Reviewed-by: Dylan Baker <[email protected]> Acked-by: Eric Engestrom <[email protected]>
* meson: Add tests to suitesDylan Baker2018-11-201-1/+2
| | | | | | | | | | | | | | | | Meson test has a concepts of suites, which allow tests to be grouped together. This allows for a subtest of tests to be run only (say only the tests for nir). A test can be added to more than one suite, but for the most part I've only added a test to a single suite, though I've added a compiler group that includes nir, glsl, and glcpp tests. To use this you'll need to invoke meson test directly, instead of ninja test (which always runs all targets). it can be invoked as: `meson test -C builddir --suite $suitename` (meson test has addition options that are pretty useful). Tested-By: Gert Wollny <[email protected]> Acked-by: Eric Engestrom <[email protected]>
* glx: make xf86vidmode mandatory for direct renderingEmil Velikov2018-11-204-20/+3
| | | | | | | | | | | | | | | | | | | Currently we detect the module and if missing, the glXGetMsc* API is effectively a stub, always returning false. This is what effectively has been happening with our meson build :-( Thus users have no chance of using it - they cannot even distinguish if the failure is due to a misconfigured build. There's no reason for keeping xf86vidmode optional - it has been available in all distributions for years. Cc: [email protected] Signed-off-by: Emil Velikov <[email protected]> Acked-by: Dylan Baker <[email protected]> Reviewed-by: Eric Engestrom <[email protected]> Fixes: a47c525f3281a2753180e "meson: build glx"
* loader: Factor out the common driver opening logic from each loader.Eric Anholt2018-11-164-90/+8
| | | | | | | | | | | | | I copied the code from egl_dri2.c, but the functionality was equivalent between all the loaders other than their particular environment variables. v2: Drop the logging function equivalent to loader_default_logger() (requested by Eric, Emil). Move the SCons workaround across. Drop the now-unused driGetDriverExtensions() declaration that was lost in a rebase. Reviewed-by: Eric Engestrom <[email protected]> (v1) Reviewed-by: Emil Velikov <[email protected]> (v1)
* glx: Move DRI extensions pointer loading to driOpenDriver().Eric Anholt2018-11-166-52/+26
| | | | | | | | | | | The only thing you do with a dri driver handle is get the extensions pointer, so just fold it in to simplify the callers. v2: Add the declaration of driGetDriverExtensions() that got lost in a rebase. Reviewed-by: Eric Engestrom <[email protected]> (v1) Reviewed-by: Emil Velikov <[email protected]> (v1)
* glx: Remove an old DEFAULT_DRIVER_DIR default.Eric Anholt2018-11-162-6/+2
| | | | | | | | | | | You can tell by "Mesa/configs/default" how old this is. Your build system really has to provide the DEFAULT_DRIVER_DIR, or other loaders will break. v2: Move the bad (non-prefix-dependent) define to the SConscript to avoid breaking it. Reviewed-by: Eric Engestrom <[email protected]> (v1) Reviewed-by: Emil Velikov <[email protected]> (v1)
* glx: Demand success from CreateContext requests (v2)Adam Jackson2018-11-071-38/+55
| | | | | | | | | | | | | | | | | | | | | | | GLXCreate{,New}Context, like most X resource creation requests, does not emit a reply and therefore is emitted into the X stream asynchronously. However, unlike most resource creation requests, the GLXContext we return is a handle to library state instead of an XID. So if context creation fails for any reason - say, the server doesn't support indirect contexts - then we will fail in strange places for strange reasons. We could make every GLX entrypoint robust against half-created contexts, or we could just verify that context creation worked. Reuse the __glXIsDirect code to do this, as a cheap way of verifying that the XID is real. glXCreateContextAttribsARB solves this by using the _checked version of the xcb command, so effectively this change makes the classic context creation paths as robust as CreateContextAttribs. v2: Better use of Bool, check that error != NULL first (Olivier Fourdan) Signed-off-by: Adam Jackson <[email protected]> Reviewed-by: Michel Dänzer <[email protected]>
* glx: be explicit about when mapping X <> GLX visualsEmil Velikov2018-11-011-3/+6
| | | | | | | | Write down both X and GLX visual types when mapping from one to the other. Makes grepping through the code a tiny bit easier. Signed-off-by: Emil Velikov <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* glx: remove unused __glXPreferEGL() declarationEmil Velikov2018-11-011-2/+0
| | | | | | | | The function definition is no longer around, drop the useless declaration. Signed-off-by: Emil Velikov <[email protected]> Reviewed-by: Brian Paul <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
* glx: Add missing include guardsMichał Janiszewski2018-10-303-0/+16
| | | | | | Signed-off-by: Michał Janiszewski <[email protected]> Reviewed-by: Brian Paul <[email protected]>
* apple/glx/log: added missing va_end() after va_copy()Andrii Simiklit2018-09-061-0/+1
| | | | | | | | | Each invocation of va_copy() must be matched by a corresponding invocation of va_end() Reviewed-by: Eric Engestrom <[email protected]> Fixes: 51691f0767f6 "darwin: Use ASL for logging" Signed-off-by: Andrii Simiklit <[email protected]>
* glx: GLX_MESA_multithread_makecurrent is direct-onlyAdam Jackson2018-08-091-1/+1
| | | | | | | | | | | | This extension is not defined for indirect contexts. Marking it as "client only", as the old code did here, would make the extension available in indirect contexts, even though the server would certainly not have it in its extension list. Cc: <[email protected]> Signed-off-by: Adam Jackson <[email protected]> Reviewed-by: Nicolai Hähnle <[email protected]> Reviewed-by: Emil Velikov <[email protected]>
* automake: require shared glapi when using DRI based libGLEmil Velikov2018-08-081-4/+1
| | | | | | | | | This has been a requirement for ages, yet it seems like we never explicitly errored out during configure. CC: <[email protected]> Signed-off-by: Emil Velikov <[email protected]> Reviewed-by: Adam Jackson <[email protected]>
* Make glXChooseFBConfig handle unspecified sRGB correctlyJon Turney2018-07-312-2/+3
| | | | | | | | | | | | | | | | | | | | | | | Make glXChooseFBConfig properly handle the case where the only matching configs have the sRGB flag set, but no sRGB attribute is specified. Since 6e06e281, the sRGBcapable flag is now actually compared, using MATCH_DONT_CARE. 7b0f912e added defaulting of sRGBcapable to GL_FALSE in __glXInitializeVisualConfigFromTags(), to handle servers which don't report it, but this function is also used by glXChooseFBConfig(), so sRGBcapable is implicitly false when not explicitly specified. (This can cause e.g. glxinfo to fail to find anything matching the simple config it looks for if all the candidates have the sRGB flag set to true. I'm assuming this doesn't happen 'normally' as candidate configs with and without sRGB true are available) Move this defaulting to createConfigsFromProperties(), and set the default for glXChooseFBConfig() in init_fbconfig_for_chooser() to GLX_DONT_CARE. Reviewed-by: Eric Anholt <[email protected]>
* glx: Don't allow glXMakeContextCurrent() with only one valid drawableAdam Jackson2018-07-091-0/+7
| | | | | | | | Drawable and readable need to either both be None or both be non-None. Cc: <[email protected]> Signed-off-by: Adam Jackson <[email protected]> Reviewed-by: Eric Anholt <[email protected]>
* glx: Fix number of property values to read in glXImportContextEXTMichel Dänzer2018-06-051-1/+1
| | | | | | | | | | | | | | | We were trying to read twice as many as the X server sent us, which upset XCB: [xcb] Too much data requested from _XRead [xcb] This is most likely caused by a broken X extension library [xcb] Aborting, sorry about that. glx-free-context: ../../src/xcb_io.c:732: _XRead: Assertion `!xcb_xlib_too_much_data_requested' failed. Fixing this takes 3 GLX piglit tests from crash to pass. Fixes: 085216295033 "glx: Be more tolerant in glXImportContext (v2)" Reviewed-by: Adam Jackson <[email protected]>
* glx/drisw: make the shm/non-shm loader extensions separately.Dave Airlie2018-05-301-8/+24
| | | | | | | | I disliked removing the const here, function tables are meant to be const just to avoid having to think about them, make a second table for the shm vs non-shm paths to use. Reviewed-by: Adam Jackson <[email protected]>
* drisw/glx: implement getImageShmMarc-André Lureau2018-05-301-1/+30
| | | | | Reviewed-by: Dave Airlie <[email protected]> Reviewed-by: Adam Jackson <[email protected]>
* drisw/glx: use XShm if possibleMarc-André Lureau2018-05-302-24/+144
| | | | | | | | | | | | | | Implements putImageShm from DRIswrastLoaderExtension. If XShm extension is not available, or fails, it will fallback on regular XPutImage(). Tested on Linux only with 16bpp and 32bpp visual. (airlied: tested on 24bpp as well) Reviewed-by: Dave Airlie <[email protected]> Reviewed-by: Adam Jackson <[email protected]>
* meson: allow empty sources when using link_wholeDylan Baker2018-04-241-8/+1
| | | | | | | | | meson used to get grumpy if the sources list was empty, even when using --whole-archive (link_whole). In more recent versions that's not true, so remove the workaround. Signed-off-by: Dylan Baker <[email protected]> Reviewed-by: Eric Anholt <[email protected]>
* meson: fix warnings about comparing unlike typesDylan Baker2018-04-062-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | In the old days (0.42.x), when mesa's meson system was written the recommendation for handling conditional dependencies was to define them as empty lists. When meson would evaluate the dependencies of a target it would recursively flatten all of the arguments, and empty lists would be removed. There are some problems with this, among them that lists and dependencies have different methods (namely .found()), so the recommendation changed to use `dependency('', required : false)` for such cases. This has the advantage of providing a .found() method, so there is no need to do things like `dep_foo != [] and dep_foo.found()`, such a dependency should never exist. I've tested this with 0.42 (the minimum we claim to support) and 0.45. On 0.45 this removes warnings about comparing unlike types, such as: meson.build:1337: WARNING: Trying to compare values of different types (DependencyHolder, list) using !=. v2: - Use dependency('', required : false) instead of declare_dependency(), the later will always report that it is found, which is not what we want. Signed-off-by: Dylan Baker <[email protected]> Reviewed-by: Caio Marcelo de Oliveira Filho <[email protected]>
* x11: Only report supported DRI3/Present versionsDaniel Stone2018-03-301-6/+16
| | | | | | | | | | | | | The version passed to QueryVersion requests is the version that the client supports. We were just passing in whatever version of XCB was present on the system, which may not be a version that Mesa actually explicitly supports, e.g. it might bring unwanted semantics. Set specific protocol versions which we support, and only pass those. Signed-off-by: Daniel Stone <[email protected]> Fixes: 7aeef2d4efd ("dri3: allow building against older xcb (v3)") Reviewed-by: Emil Velikov <[email protected]>
* dri3: Don't fail on version mismatchDaniel Stone2018-03-201-2/+6
| | | | | | | | | | | | | The previous commit to make DRI3 modifier support optional, breaks with an updated server and old client. Make sure we never set multibuffers_available unless we also support it locally. Make sure we don't call stubs of new-DRI3 functions (or empty branches) which will never succeed. Signed-off-by: Daniel Stone <[email protected]> Reviewed-by: Dave Airlie <[email protected]> Fixes: 7aeef2d4efdc ("dri3: allow building against older xcb (v3)")
* glx: remove empty GLX_SGIX_swap_group stubsEmil Velikov2018-03-124-30/+0
| | | | | | | | | | | The extension was never implemented. Quick search suggests: - no actual users (on my Arch setup) - the Nvidia driver does not implement the extension Signed-off-by: Emil Velikov <[email protected]> Acked-by: Ian Romanick <[email protected]> Acked-by: Brian Paul <[email protected]> Reviewed-by: Adam Jackson <[email protected]>
* glx: remove empty GLX_SGIX_swap_barrier stubsEmil Velikov2018-03-124-48/+0
| | | | | | | | | | | The extension was never implemented. Quick search suggests: - no actual users (on my Arch setup) - the Nvidia driver does not implement the extension Signed-off-by: Emil Velikov <[email protected]> Acked-by: Ian Romanick <[email protected]> Acked-by: Brian Paul <[email protected]> Reviewed-by: Adam Jackson <[email protected]>
* egl/x11: Re-allocate buffers if format is suboptimalLouis-Francis Ratté-Boulianne2018-03-091-1/+3
| | | | | | | | | | If PresentCompleteNotify event says the pixmap was presented with mode PresentCompleteModeSuboptimalCopy, it means the pixmap could possibly have been flipped instead if allocated with a different format/modifier. Signed-off-by: Louis-Francis Ratté-Boulianne <[email protected]> Reviewed-by: Daniel Stone <[email protected]>
* egl/x11: Support DRI3 v1.1Louis-Francis Ratté-Boulianne2018-03-091-1/+9
| | | | | | | | | | | | Add support for DRI3 v1.1, which allows pixmaps to be backed by multi-planar buffers, or those with format modifiers. This is both for allocating render buffers, as well as EGLImage imports from a native pixmap (EGL_NATIVE_PIXMAP_KHR). Signed-off-by: Louis-Francis Ratté-Boulianne <[email protected]> Reviewed-by: Eric Engestrom <[email protected]> Reviewed-by: Emil Velikov <[email protected]> Reviewed-by: Daniel Stone <[email protected]>
* glx/apple: Ship meson build file in tarballThierry Reding2018-03-081-1/+3
| | | | | | | | | | | The meson build file for Apple GLX is not listed in the EXTRA_DIST make variable and therefore isn't shipped as part of the release tarball, so meson builds from the tarball will fail. Add the file to EXTRA_DIST to ensure it is included in the tarball. Reviewed-by: Dylan Baker <[email protected]> Signed-off-by: Thierry Reding <[email protected]>
* glx/dri: Add a driconf option to disable GLX_SGI_video_syncThomas Hellstrom2018-03-082-4/+11
| | | | | | | | | | | Drivers on virtual hardware don't want to expose this extension to GLX compositors, similarly to GLX_OML_sync_control, since that significantly increases latency. Signed-off-by: Thomas Hellstrom <[email protected]> Reviewed-by: Brian Paul <[email protected]> Reviewed-by: Sinclair Yeh <[email protected]> Reviewed-by: Deepak Rawat <[email protected]>
* loader_dri3/glx/egl: Reinstate the loader_dri3_vtable get_dri_screen callbackThomas Hellstrom2018-02-201-0/+11
| | | | | | | | | | | | | | | Removing this callback caused rendering corruption in some multi-screen cases, so it is reinstated but without the drawable argument which was never used by implementations and was confusing since the drawable could have been created with another screen. Cc: "17.3 18.0" [email protected] Fixes: 5198e48a0d (loader_dri3/glx/egl: Remove the loader_dri3_vtable get_dri_screen callback) Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105013 Reported-by: Daniel van Vugt <[email protected]> Tested-by: Timo Aaltonen <[email protected]> Signed-off-by: Thomas Hellstrom <[email protected]> Reviewed-by: Brian Paul <[email protected]>
* meson: build src/glx/appleJon Turney2018-02-052-0/+65
| | | | | | Signed-off-by: Jon Turney <[email protected]> Reviewed-by: Dylan Baker <[email protected]> Reviewed-by: Emil Velikov <[email protected]>
* meson: Don't confuse the install and search paths for dri driversDylan Baker2018-02-021-2/+2
| | | | | | | | | | | | | | | | | | | | | Currently there is not a separate option for setting the search path of DRI drivers in meson, like there is in scons and autotools. This is an oversight and needs to be fixed. This adds an extra option `dri-search-path`, which will default to the value of `dri-drivers-path`, like autotools does. v2: - Split input list before joining. v3: - use : instead of ; as the delimiter. The autotools help string incorrectly says ; but the code uses : v4: - Take list in pre : delimited form (Ilia) - Ensure that the dri-search-path is absolute when using dri_drivers_path Fixes: db9788420d4bc7b4 ("meson: Add support for configuring dri drivers directory.") Reported-by: Ilia Mirkin <[email protected]> Signed-off-by: Dylan Baker <[email protected]> Reviewed-by: Eric Anholt <[email protected]> (v2) Reviewed-by: Eric Engestrom <[email protected]> (v3)
* glx/test: fix building for osxJon Turney2018-02-022-0/+16
| | | | | | | | An additional stub for applegl_create_context() is needed Cannot test indirect API as it's not built on osx, currently Signed-off-by: Jon Turney <[email protected]> Reviewed-by: Emil Velikov <[email protected]>
* meson: don't install windows headers on non-windows platformsMarc Dietrich2018-02-011-1/+3
| | | | | | | | Only dive into the windows subdir if windows platform is selected. Signed-off-by: Marc Dietrich <[email protected]> Fixes: 5ef75cb02b2b4db5506b8 "meson: build src/glx/windows" Reviewed-by: Eric Engestrom <[email protected]>
* glx/apple: locate dispatch table functions to wrap by nameJon Turney2018-02-011-7/+5
| | | | | | | | | | | | | Avoid reaching into the dispatch table internals (and thus having to deal with the complexities of remap etc.) by identifying functions to wrap by name. See: https://lists.freedesktop.org/archives/mesa-dev/2015-June/086721.html et seq. https://bugs.freedesktop.org/show_bug.cgi?id=90311 Signed-off-by: Jon Turney <[email protected]> Reviewed-by: Emil Velikov <[email protected]>
* glx/apple: include util/debug.h for env_var_as_boolean prototypeJon Turney2018-02-012-0/+2
| | | | | | | | mesa/src/glx/glxcmds.c:1295:21: error: implicit declaration of function 'env_var_as_boolean' is invalid in C99 [-Werror,-Wimplicit-function-declaration] mesa/src/glx/apple/apple_visual.c:85:28: error: implicit declaration of function 'env_var_as_boolean' is invalid in C99 [-Werror,-Wimplicit-function-declaration] Signed-off-by: Jon Turney <[email protected]> Reviewed-by: Emil Velikov <[email protected]>
* autotools: include meson build files in tarballDylan Baker2018-01-193-2/+4
| | | | | | | | | | | | This adds the meson.build, meson_options.txt, and a few scripts that are used exclusively by the meson build. v2: - Remove accidentally included changes needed to test make dist with LLVM > 3.9 Signed-off-by: Dylan Baker <[email protected]> Acked-by: Eric Engestrom <[email protected]> Reviewed-by: Emil Velikov <[email protected]>
* glx: fix non-dri buildSamuel Thibault2018-01-161-0/+4
| | | | | | | | | | | | | | glXGetDriverConfig parameters do not provide a context to dynamically check for the presence of the function, so the dispatcher directly calls glXGetDriverConfig, but in non-dri builds dri_glx.c didn't provide glXGetDriverConfig. This change make it just return NULL in that case. Fixes: 84f764a7591 "glxglvnddispatch: Add missing dispatch for GetDriverConfig Reviewed-by: Nicolai Hähnle <[email protected]> Reviewed-by: Hans de Goede <[email protected]> Reviewed-by: Emil Velikov <[email protected]>
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