diff options
| author | Brian Paul <brian.paul@tungstengraphics.com> | 2008-12-10 18:02:27 -0700 |
|---|---|---|
| committer | Brian Paul <brian.paul@tungstengraphics.com> | 2008-12-10 18:06:44 -0700 |
| commit | d0bc5293d6e1e9c34fa822b7c2928932ed22462c (patch) | |
| tree | 097faccccfa6a17402b1cbb86c4db719bfea9fdf /src/gallium/auxiliary/draw/draw_pipe_offset.c | |
| parent | 8137da952b6f30329adf7d49d2d9e58625534dd4 (diff) | |
gallium: added draw_set_mrd() function to fix polygon offset
The Minimum Resolvable Depth factor depends on the driver and can't just
be computed from the number of Z buffer bits.
Glean's polygon offset test now passes with softpipe.
Still need to determine the MRD factor for other gallium drivers, if they use
the draw module's polygon offset stage...
Diffstat (limited to 'src/gallium/auxiliary/draw/draw_pipe_offset.c')
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_pipe_offset.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/src/gallium/auxiliary/draw/draw_pipe_offset.c b/src/gallium/auxiliary/draw/draw_pipe_offset.c index 1fea5e6dcb..8ddc4ee617 100644 --- a/src/gallium/auxiliary/draw/draw_pipe_offset.c +++ b/src/gallium/auxiliary/draw/draw_pipe_offset.c @@ -122,9 +122,8 @@ static void offset_first_tri( struct draw_stage *stage, struct prim_header *header ) { struct offset_stage *offset = offset_stage(stage); - float mrd = 1.0f / 65535.0f; /* XXX this depends on depthbuffer bits! */ - offset->units = stage->draw->rasterizer->offset_units * mrd; + offset->units = stage->draw->rasterizer->offset_units * stage->draw->mrd; offset->scale = stage->draw->rasterizer->offset_scale; stage->tri = offset_tri; |