diff options
| author | Brian Paul <[email protected]> | 2017-07-11 14:56:00 -0600 |
|---|---|---|
| committer | Brian Paul <[email protected]> | 2017-07-11 15:43:36 -0600 |
| commit | f7e78abdf45b26f3991dc336120162ae01b208f1 (patch) | |
| tree | 644c680046d1fe7381ded57a8a98c3e3e26c794f /src | |
| parent | cead51a0c63df1613f9f6400657597679126024c (diff) | |
svga: fix texture swizzle writemasking
Commit bfe1e7737a76e3b046 changed how texture swizzles are set up.
This exposed a latent bug in the VMware driver: we were ignoring
the texture instruction's writemask when applying the 0 and 1
swizzle terms.
This wasn't caught by the Piglit texture swizzle test because it
only exercises fixed function (no write masking).
Fixes issues seen with ETQW apitrace.
CC: <[email protected]>
Reviewed-by: Charmaine Lee <[email protected]>
Diffstat (limited to 'src')
| -rw-r--r-- | src/gallium/drivers/svga/svga_tgsi_vgpu10.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/gallium/drivers/svga/svga_tgsi_vgpu10.c b/src/gallium/drivers/svga/svga_tgsi_vgpu10.c index d29ac282405..96269cb872b 100644 --- a/src/gallium/drivers/svga/svga_tgsi_vgpu10.c +++ b/src/gallium/drivers/svga/svga_tgsi_vgpu10.c @@ -5047,6 +5047,7 @@ end_tex_swizzle(struct svga_shader_emitter_v10 *emit, ((swz_g == PIPE_SWIZZLE_0) << 1) | ((swz_b == PIPE_SWIZZLE_0) << 2) | ((swz_a == PIPE_SWIZZLE_0) << 3)); + writemask_0 &= swz->inst_dst->Register.WriteMask; if (writemask_0) { struct tgsi_full_src_register zero = int_tex ? @@ -5065,6 +5066,7 @@ end_tex_swizzle(struct svga_shader_emitter_v10 *emit, ((swz_g == PIPE_SWIZZLE_1) << 1) | ((swz_b == PIPE_SWIZZLE_1) << 2) | ((swz_a == PIPE_SWIZZLE_1) << 3)); + writemask_1 &= swz->inst_dst->Register.WriteMask; if (writemask_1) { struct tgsi_full_src_register one = int_tex ? |