[Mesa-dev] [PATCH RFC 2/6] i965: allow SIMD8 sampler messages in SIMD16 mode

[Chia-I Wu]

From: Chia-I Wu <olv at lunarg.com>

When the instruction to send the sampler message is forced uncompressed or
sechalf, send SIMD8 one even in SIMD16 mode.

Signed-off-by: Chia-I Wu <olv at lunarg.com>
---
 src/mesa/drivers/dri/i965/brw_fs_generator.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
index 4475058..9406f7b 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
@@ -381,7 +381,8 @@ fs_generator::generate_tex(fs_inst *inst, struct brw_reg dst, struct brw_reg src
       break;
    }
 
-   if (dispatch_width == 16)
+   if (dispatch_width == 16 &&
+      !inst->force_uncompressed && !inst->force_sechalf)
       simd_mode = BRW_SAMPLER_SIMD_MODE_SIMD16;
 
    if (brw->gen >= 5) {
-- 
1.8.3.1