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i965/vec4: Override destination register writemask in sampler message send.

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This line was removed by accident in commit
16b9112574 causing a regression in the
ES3-CTS.gtf.GL3Tests.shadow.shadow_execution_vert Khronos conformance
test.  It's necessary because the swizzle_result() code below expects
all four components of the vector to be valid.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89094
Tested-by: Lu Hua <huax.lu@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
This commit is contained in:
Francisco Jerez 2015-02-12 10:20:49 +02:00
parent 0a811e1d1e
commit 946e29847b
1 changed files with 1 additions and 0 deletions
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src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
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@ -2613,6 +2613,7 @@ vec4_visitor::visit(ir_texture *ir)
is_high_sampler(brw, sampler_reg);
inst->base_mrf = 2;
inst->mlen = inst->header_present + 1; /* always at least one */
inst->dst.writemask = WRITEMASK_XYZW;
inst->shadow_compare = ir->shadow_comparitor != NULL;
inst->src[1] = sampler_reg;