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i956: Set the execution size correctly for scratch space writes.

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Otherwise, the second half isn't written, and we end up reading back
black.

Fixes the remaining junk drawn in glsl-max-varyings, and will likely
help with a number of large real-world shaders.
This commit is contained in:
Eric Anholt 2010-07-21 15:54:53 -07:00
parent ff81a1dd92
commit 04de6861c1
1 changed files with 2 additions and 2 deletions
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4
src/mesa/drivers/dri/i965/brw_eu_emit.c
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@ -1091,10 +1091,10 @@ void brw_dp_WRITE_16( struct brw_compile *p,
* spilling within a thread.
*/
if (intel->gen >= 6) {
dest = retype(brw_null_reg(), BRW_REGISTER_TYPE_UW);
dest = retype(vec16(brw_null_reg()), BRW_REGISTER_TYPE_UW);
send_commit_msg = 0;
} else {
dest = retype(brw_vec8_grf(0, 0), BRW_REGISTER_TYPE_UW);
dest = brw_uw16_grf(0, 0);
send_commit_msg = 1;
}