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i965/fs: Stomp the texture return type to UINT32 for resinfo messages

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Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Jason Ekstrand 2015-11-11 15:46:55 -08:00
parent 042fa75e48
commit d065a93a3f
1 changed files with 11 additions and 0 deletions
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11
src/mesa/drivers/dri/i965/brw_fs_generator.cpp
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@ -699,6 +699,17 @@ fs_generator::generate_tex(fs_inst *inst, struct brw_reg dst, struct brw_reg src
break;
}
/* Stomp the resinfo output type to UINT32. On gens 4-5, the output type
* is set as part of the message descriptor. On gen4, the PRM seems to
* allow UINT32 and FLOAT32 (i965 PRM, Vol. 4 Section 4.8.1.1), but on
* later gens UINT32 is required. Once you hit Sandy Bridge, the bit is
* gone from the message descriptor entirely and you just get UINT32 all
* the time regasrdless. Since we can really only do non-UINT32 on gen4,
* just stomp it to UINT32 all the time.
*/
if (inst->opcode == SHADER_OPCODE_TXS)
return_format = BRW_SAMPLER_RETURN_FORMAT_UINT32;
switch (inst->exec_size) {
case 8:
simd_mode = BRW_SAMPLER_SIMD_MODE_SIMD8;