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For each indirect context the indirect vertex array state must be initialised by __glXInitVertexArrayState in indirect_vertex_array.c. As noted in the routine header it requires that the glx context has been setup prior to the call, in order to test the server version and extensions. Currently __glXInitVertexArrayState is called from indirect_bind_context in indirect_glx.c, as follows: state = gc->client_state_private; if (state->array_state == NULL) { glGetString(GL_EXTENSIONS); glGetString(GL_VERSION); __glXInitVertexArrayState(gc); } But, the gc context is not yet usable at this stage, so the server queries fail, and __glXInitVertexArrayState is called without the server version and extension information it needs. This breaks multi-texturing as glXInitVertexArrayState doesn't get GL_MAX_TEXTURE_UNITS. It probably also breaks setup of other arrays: fog, secondary colour, vertex attributes. To fix this I have moved the call to __glXInitVertexArrayState to the end of MakeContextCurrent in glxcurrent.c, where the glx context is usable. Fixes a regression caused by commit 4fbdde88 . Fixes ARB_vertex_program usage in the arbvparray Mesa demo when run with indirect GLX and also the tex-skipped-unit piglit test when run with indirect GLX. Reviewed-by: Matt Turner <mattst88@gmail.com> Acked-by: Ian Romanick <ian.d.romanick@intel.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=61907
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