diff options
| author | Eric Anholt <eric@anholt.net> | 2010-07-02 16:17:50 -0700 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2010-07-02 17:06:23 -0700 |
| commit | 4e7d5d0e74c26cac182cea1be0f6b79bb664ad8c (patch) | |
| tree | c71ecff054e381538c1c136f41c46f65f0aa2e43 /src/mesa/drivers/dri/i965/brw_wm_pass1.c | |
| parent | 8f25d198e54a117b36e68582977a644d085a4a94 (diff) | |
i965: Add support for the DP2 opcode, which we use for dot(vec2, vec2).
The original glsl compiler would generate a.x * b.x + a.y * b.y, which
we would do mul+mul+add for instead of this mul+mac.
Fixes glsl-fs-dot-vec2.
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_wm_pass1.c')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_wm_pass1.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm_pass1.c b/src/mesa/drivers/dri/i965/brw_wm_pass1.c index 8ee1f153b1..962515a99e 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_pass1.c +++ b/src/mesa/drivers/dri/i965/brw_wm_pass1.c @@ -255,6 +255,11 @@ void brw_wm_pass1( struct brw_wm_compile *c ) read2 = WRITEMASK_W; /* pixel w */ break; + case OPCODE_DP2: + read0 = WRITEMASK_XY; + read1 = WRITEMASK_XY; + break; + case OPCODE_DP3: read0 = WRITEMASK_XYZ; read1 = WRITEMASK_XYZ; |