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mesa/main: Prevent sefgault on glGetIntegerv(GL_ATOMIC_COUNTER_BUFFER_BINDING).

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A recent ApiTrace change, that tries to dump more buffer state
causes Mesa from my distro (10.1.4) to segfaults here.

I haven't actually confirm this fixes it (I can't repro on master),
but it seems a good idea to be defensive here anyway.

Cc: "10.1 10.2" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
José Fonseca 2014-06-06 23:59:18 +01:00
parent 8873120f9f
commit eb58aa9cf0
1 changed files with 5 additions and 1 deletions
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6
src/mesa/main/get.c
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@ -1005,7 +1005,11 @@ find_custom_value(struct gl_context *ctx, const struct value_desc *d, union valu
break;
/* GL_ARB_shader_atomic_counters */
case GL_ATOMIC_COUNTER_BUFFER_BINDING:
v->value_int = ctx->AtomicBuffer->Name;
if (ctx->AtomicBuffer) {
v->value_int = ctx->AtomicBuffer->Name;
} else {
v->value_int = 0;
}
break;
/* GL_ARB_draw_indirect */
case GL_DRAW_INDIRECT_BUFFER_BINDING: