diff options
| author | Brian Paul <[email protected]> | 2013-07-11 17:02:37 -0600 |
|---|---|---|
| committer | Brian Paul <[email protected]> | 2013-07-12 08:32:51 -0600 |
| commit | 46205ab8cc03cbda6bbc0c958e277f972973ebfe (patch) | |
| tree | bd5f689a9626a410237bbfa8523c59c8299181a5 /src/gallium/docs | |
| parent | f501baabdb5cd356faad0e419c64b2ac312c5756 (diff) | |
tgsi: rename the TGSI fragment kill opcodes
TGSI_OPCODE_KIL and KILP had confusing names. The former was conditional
kill (if any src component < 0). The later was unconditional kill.
At one time KILP was supposed to work with NV-style condition
codes/predicates but we never had that in TGSI.
This patch renames both opcodes:
TGSI_OPCODE_KIL -> KILL_IF (kill if src.xyzw < 0)
TGSI_OPCODE_KILP -> KILL (unconditional kill)
Note: I didn't just transpose the opcode names to help ensure that I
didn't miss updating any code anywhere.
I believe I've updated all the relevant code and comments but I'm
not 100% sure that some drivers had this right in the first place.
For example, the radeon driver might have llvm.AMDGPU.kill and
llvm.AMDGPU.kilp mixed up. Driver authors should review their code.
Reviewed-by: Jose Fonseca <[email protected]>
Diffstat (limited to 'src/gallium/docs')
| -rw-r--r-- | src/gallium/docs/source/tgsi.rst | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst index 8c6fec9851c..13daa62ab62 100644 --- a/src/gallium/docs/source/tgsi.rst +++ b/src/gallium/docs/source/tgsi.rst @@ -741,7 +741,9 @@ This instruction replicates its result. dst.w = (src0.w < 0) ? src1.w : src2.w -.. opcode:: KIL - Conditional Discard +.. opcode:: KILL_IF - Conditional Discard + + Conditional discard. Allowed in fragment shaders only. .. math:: @@ -750,7 +752,7 @@ This instruction replicates its result. endif -.. opcode:: KILP - Discard +.. opcode:: KILL - Discard Unconditional discard. Allowed in fragment shaders only. |