diff options
Diffstat (limited to 'src/gallium')
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_setup_line.c | 3 | ||||
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_setup_tri.c | 38 |
2 files changed, 24 insertions, 17 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_setup_line.c b/src/gallium/drivers/llvmpipe/lp_setup_line.c index 693ac281752..c940860850e 100644 --- a/src/gallium/drivers/llvmpipe/lp_setup_line.c +++ b/src/gallium/drivers/llvmpipe/lp_setup_line.c @@ -640,8 +640,7 @@ try_setup_line( struct lp_setup_context *setup, } } - plane->dcdx *= FIXED_ONE; - plane->dcdy *= FIXED_ONE; + plane->c = (plane->c + (FIXED_ONE-1)) / FIXED_ONE; /* find trivial reject offsets for each edge for a single-pixel * sized block. These will be scaled up at each recursive level to diff --git a/src/gallium/drivers/llvmpipe/lp_setup_tri.c b/src/gallium/drivers/llvmpipe/lp_setup_tri.c index 8fd034666c3..dfe1bd11ea0 100644 --- a/src/gallium/drivers/llvmpipe/lp_setup_tri.c +++ b/src/gallium/drivers/llvmpipe/lp_setup_tri.c @@ -343,26 +343,34 @@ do_triangle_ccw(struct lp_setup_context *setup, * Also, sometimes (in FBO cases) GL will render upside down * to its usual method, in which case it will probably want * to use the opposite, top-left convention. + * + * XXX: Chances are this will get stripped away. In fact this + * is only meaningful if: + * + * (plane->c & (FIXED_ONE-1)) == 0 + * */ - if (plane->dcdx < 0) { - /* both fill conventions want this - adjust for left edges */ - plane->c++; - } - else if (plane->dcdx == 0) { - if (setup->pixel_offset == 0) { - /* correct for top-left fill convention: - */ - if (plane->dcdy > 0) plane->c++; + if ((plane->c & (FIXED_ONE-1)) == 0) { + if (plane->dcdx < 0) { + /* both fill conventions want this - adjust for left edges */ + plane->c++; } - else { - /* correct for bottom-left fill convention: - */ - if (plane->dcdy < 0) plane->c++; + else if (plane->dcdx == 0) { + if (setup->pixel_offset == 0) { + /* correct for top-left fill convention: + */ + if (plane->dcdy > 0) plane->c++; + } + else { + /* correct for bottom-left fill convention: + */ + if (plane->dcdy < 0) plane->c++; + } } } - plane->dcdx *= FIXED_ONE; - plane->dcdy *= FIXED_ONE; + plane->c = (plane->c + (FIXED_ONE-1)) / FIXED_ONE; + /* find trivial reject offsets for each edge for a single-pixel * sized block. These will be scaled up at each recursive level to |