swrast: add 0.5 bias in tex_array_slice() per the spec

2010-02-25 20:21:39 -07:00
parent 70d5c48341
commit bdbb5f8170
1 changed files with 1 additions and 1 deletions
@@ -480,7 +480,7 @@ clamp_rect_coord_linear(GLenum wrapMode, GLfloat coord, GLint max,
 static INLINE GLint
 tex_array_slice(GLfloat coord, GLsizei size)
 {
-   GLint slice = IFLOOR(coord);
+   GLint slice = IFLOOR(coord + 0.5f);
   slice = CLAMP(slice, 0, size - 1);
   return slice;
 }