diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs_generator.cpp | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp index 77969c4..971190f 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp @@ -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; |