[Mesa-dev] [PATCH 31/41] i965/fs: Use instruction execution sizes to set compression state

[Jason Ekstrand]

Signed-off-by: Jason Ekstrand <jason.ekstrand at intel.com>
---
 src/mesa/drivers/dri/i965/brw_fs_generator.cpp | 23 ++++++++++++++++++-----
 1 file changed, 18 insertions(+), 5 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
index f20a4a7..00cf3ec 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
@@ -1536,12 +1536,25 @@ fs_generator::generate_code(const cfg_t *cfg)
       brw_set_default_mask_control(p, inst->force_writemask_all);
       brw_set_default_acc_write_control(p, inst->writes_accumulator);
 
-      if (inst->force_uncompressed || dispatch_width == 8) {
+      switch (inst->exec_size) {
+      case 1:
+      case 2:
+      case 4:
+         assert(inst->force_writemask_all);
 	 brw_set_default_compression_control(p, BRW_COMPRESSION_NONE);
-      } else if (inst->force_sechalf) {
-	 brw_set_default_compression_control(p, BRW_COMPRESSION_2NDHALF);
-      } else {
-	 brw_set_default_compression_control(p, BRW_COMPRESSION_COMPRESSED);
+         break;
+      case 8:
+         if (inst->force_sechalf) {
+            brw_set_default_compression_control(p, BRW_COMPRESSION_2NDHALF);
+         } else {
+	    brw_set_default_compression_control(p, BRW_COMPRESSION_NONE);
+         }
+         break;
+      case 16:
+         brw_set_default_compression_control(p, BRW_COMPRESSION_COMPRESSED);
+         break;
+      default:
+         assert(!"Invalid instruction width");
       }
 
       switch (inst->opcode) {
-- 
2.1.0