diff options
Diffstat (limited to 'src/gallium/drivers/llvmpipe/lp_setup_line.c')
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_setup_line.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_setup_line.c b/src/gallium/drivers/llvmpipe/lp_setup_line.c index 827413bb33..29c231714e 100644 --- a/src/gallium/drivers/llvmpipe/lp_setup_line.c +++ b/src/gallium/drivers/llvmpipe/lp_setup_line.c @@ -569,7 +569,10 @@ try_setup_line( struct lp_setup_context *setup, return TRUE; } - u_rect_find_intersection(&setup->draw_region, &bbox); + /* Can safely discard negative regions: + */ + bbox.x0 = MAX2(bbox.x0, 0); + bbox.y0 = MAX2(bbox.y0, 0); line = lp_setup_alloc_triangle(scene, key->num_inputs, @@ -680,24 +683,26 @@ try_setup_line( struct lp_setup_context *setup, * these planes elsewhere. */ if (nr_planes == 8) { + const struct u_rect *scissor = &setup->scissor; + plane[4].dcdx = -1; plane[4].dcdy = 0; - plane[4].c = 1-bbox.x0; + plane[4].c = 1-scissor->x0; plane[4].eo = 1; plane[5].dcdx = 1; plane[5].dcdy = 0; - plane[5].c = bbox.x1+1; + plane[5].c = scissor->x1+1; plane[5].eo = 0; plane[6].dcdx = 0; plane[6].dcdy = 1; - plane[6].c = 1-bbox.y0; + plane[6].c = 1-scissor->y0; plane[6].eo = 1; plane[7].dcdx = 0; plane[7].dcdy = -1; - plane[7].c = bbox.y1+1; + plane[7].c = scissor->y1+1; plane[7].eo = 0; } |