diff options
| author | Brian <brian.paul@tungstengraphics.com> | 2008-02-04 16:48:00 -0700 |
|---|---|---|
| committer | Ben Skeggs <skeggsb@gmail.com> | 2008-02-15 13:50:30 +1100 |
| commit | d17e3362592c58f0d5d47745fd97b3b31d1a684a (patch) | |
| tree | 95f4e42e17c964d4be6beb54cb7ddeca7987fbd0 /src/mesa | |
| parent | 790eec9666ae6cc37ce4ba54cceff97e9eeb5ce3 (diff) | |
Cell: fix small sampling error in sample_texture_bilinear()
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/pipe/cell/spu/spu_texture.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/mesa/pipe/cell/spu/spu_texture.c b/src/mesa/pipe/cell/spu/spu_texture.c index 9ee2b45e24..01ff33a857 100644 --- a/src/mesa/pipe/cell/spu/spu_texture.c +++ b/src/mesa/pipe/cell/spu/spu_texture.c @@ -150,6 +150,8 @@ sample_texture_bilinear(vector float texcoord) static const vector unsigned int offset01 = {0, 1, 0, 0}; vector float tc = spu_mul(texcoord, spu.tex_size); + tc = spu_add(tc, spu_splats(-0.5f)); /* half texel bias */ + /* integer texcoords S,T: */ vector unsigned int itc00 = spu_convtu(tc, 0); /* convert to int */ vector unsigned int itc01 = spu_add(itc00, offset01); |