From d065a93a3f103a8e4fc9c56971c2a4ae195d611f Mon Sep 17 00:00:00 2001 From: Jason Ekstrand Date: Wed, 11 Nov 2015 15:46:55 -0800 Subject: [PATCH] i965/fs: Stomp the texture return type to UINT32 for resinfo messages Reviewed-by: Kenneth Graunke --- 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 77969c4dc12..971190fac6a 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; -- 2.11.0