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i965/miptree: Check tex image allocation failures

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allowing graceful failure instead of crash on assert later on.

This can be hit, for example, on SNB when trying to allocate
8kx8k CUBE_MAP against isl: x-tiled buffer size becomes
2421161984 exceeding the maximum of 1 << 31 == 2147483648.

Another way to hit this on SNB is with multisampling of over
64-bit formats.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
This commit is contained in:
Topi Pohjolainen 2017-07-21 11:17:57 +03:00
parent 4aea4d6d64
commit f8894fab02
1 changed files with 2 additions and 0 deletions
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2
src/mesa/drivers/dri/i965/intel_tex.c
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@ -95,6 +95,8 @@ intel_alloc_texture_image_buffer(struct gl_context *ctx,
intel_image->mt = intel_miptree_create_for_teximage(brw, intel_texobj,
intel_image,
1 /* samples */);
if (!intel_image->mt)
return false;
/* Even if the object currently has a mipmap tree associated
* with it, this one is a more likely candidate to represent the