diff options
| author | Tom Stellard <[email protected]> | 2010-07-13 21:25:27 -0700 |
|---|---|---|
| committer | Tom Stellard <[email protected]> | 2010-09-10 18:18:08 -0700 |
| commit | 63432ecfce5415fbf07f1781ec77b5ea3efff599 (patch) | |
| tree | 903818a193704d2053ce79cf0c8a2d43c3cbaa88 /src/gallium | |
| parent | d8a36620089e72d431ae853ec168f193f3376782 (diff) | |
r300/compiler: Enable presubtract sources
The r300 compiler can now emit instructions that select from the presubtract
source. A peephole optimization has been added to convert instructions like:
ADD Temp[0].x, none.1, -Temp[1].x into the INV (1 - src0) presubtract
operation.
Diffstat (limited to 'src/gallium')
| -rw-r--r-- | src/gallium/drivers/r300/r300_fs.c | 1 | ||||
| -rw-r--r-- | src/gallium/drivers/r300/r300_vs.c | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/src/gallium/drivers/r300/r300_fs.c b/src/gallium/drivers/r300/r300_fs.c index b9f4d77dea7..b8dab88ef09 100644 --- a/src/gallium/drivers/r300/r300_fs.c +++ b/src/gallium/drivers/r300/r300_fs.c @@ -387,6 +387,7 @@ static void r300_translate_fragment_shader( compiler.Base.is_r500 = r300->screen->caps.is_r500; compiler.Base.disable_optimizations = DBG_ON(r300, DBG_NO_OPT); compiler.Base.has_half_swizzles = TRUE; + compiler.Base.has_presub = TRUE; compiler.Base.max_temp_regs = compiler.Base.is_r500 ? 128 : 32; compiler.Base.max_constants = compiler.Base.is_r500 ? 256 : 32; compiler.Base.max_alu_insts = compiler.Base.is_r500 ? 512 : 64; diff --git a/src/gallium/drivers/r300/r300_vs.c b/src/gallium/drivers/r300/r300_vs.c index 22c94adbda0..e2b9af9d018 100644 --- a/src/gallium/drivers/r300/r300_vs.c +++ b/src/gallium/drivers/r300/r300_vs.c @@ -208,6 +208,7 @@ void r300_translate_vertex_shader(struct r300_context *r300, compiler.Base.is_r500 = r300->screen->caps.is_r500; compiler.Base.disable_optimizations = DBG_ON(r300, DBG_NO_OPT); compiler.Base.has_half_swizzles = FALSE; + compiler.Base.has_presub = FALSE; compiler.Base.max_temp_regs = 32; compiler.Base.max_constants = 256; compiler.Base.max_alu_insts = r300->screen->caps.is_r500 ? 1024 : 256; |