diff options
| author | Kenneth Graunke <kenneth@whitecape.org> | 2011-02-22 10:04:18 -0800 |
|---|---|---|
| committer | Kenneth Graunke <kenneth@whitecape.org> | 2011-02-22 10:52:44 -0800 |
| commit | 3e91070ea81da970b640acf22e2b1aa761161906 (patch) | |
| tree | 050058dc613221a2bf1826b04d7d69f042f154fe /src/mesa/drivers/dri | |
| parent | c6cedd43feccb9341c597329e28bb432c491939f (diff) | |
i965: Fix shaders that write to gl_PointSize on Sandybridge.
gl_PointSize (VERT_RESULT_PSIZ) doesn't take up a message register,
as it's part of the header. Without this fix, writing to gl_PointSize
would cause the SF to read and use the wrong attributes, leading to all
kinds of random looking failure.
Reviewed-by: Eric Anholt <eric@anholt.net>
Diffstat (limited to 'src/mesa/drivers/dri')
| -rw-r--r-- | src/mesa/drivers/dri/i965/gen6_sf_state.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/gen6_sf_state.c b/src/mesa/drivers/dri/i965/gen6_sf_state.c index f27782935d..06ed89f844 100644 --- a/src/mesa/drivers/dri/i965/gen6_sf_state.c +++ b/src/mesa/drivers/dri/i965/gen6_sf_state.c @@ -54,6 +54,8 @@ get_attr_override(struct brw_context *brw, int fs_attr, int two_side_color) * be FRAG_ATTRIB_*. */ for (i = 1; i < vs_attr; i++) { + if (i == VERT_RESULT_PSIZ) + continue; if (brw->vs.prog_data->outputs_written & BITFIELD64_BIT(i)) attr_index++; } |