Cc: Kenneth Graunke <kenn...@whitecape.org>
---
src/mesa/drivers/dri/i965/brw_fs_generator.cpp | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
index 4877504..61c63d4 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
@@ -690,6 +690,17 @@ 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;
--
2.5.0.400.gff86faf
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