From 1a75464cdc12a1e83f1452707cd624c53f808308 Mon Sep 17 00:00:00 2001 From: Brian Date: Mon, 4 Feb 2008 16:48:00 -0700 Subject: [PATCH] Cell: fix small sampling error in sample_texture_bilinear() --- src/mesa/pipe/cell/spu/spu_texture.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/mesa/pipe/cell/spu/spu_texture.c b/src/mesa/pipe/cell/spu/spu_texture.c index 9ee2b45..01ff33a 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); -- 2.7.4