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authorBrian Paul <brianp@vmware.com>2014-02-03 11:33:03 -0700
committerBrian Paul <brianp@vmware.com>2014-02-03 12:50:04 -0700
commitfc3fcd1e01093e8ab8d06d95c53f875ace57ca7f (patch)
tree7a97d7848969029d20605d22521837f8da01c9b8 /src/gallium
parent349b76a55364c0bb33daa4e1ebe36dd689e35807 (diff)
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draw: fix incorrect color of flat-shaded clipped lines
When we clipped a line weren't copying the provoking vertex color to the second vertex. We also weren't checking for first vs. last provoking vertex. Fixes failures found with the new piglit line-flat-clip-color test. Cc: "10.0, 10.1" <mesa-stable@lists.freedesktop.org> Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
Diffstat (limited to 'src/gallium')
-rw-r--r--src/gallium/auxiliary/draw/draw_pipe_clip.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/src/gallium/auxiliary/draw/draw_pipe_clip.c b/src/gallium/auxiliary/draw/draw_pipe_clip.c
index de354e9..d8b56de 100644
--- a/src/gallium/auxiliary/draw/draw_pipe_clip.c
+++ b/src/gallium/auxiliary/draw/draw_pipe_clip.c
@@ -588,7 +588,12 @@ do_clip_line( struct draw_stage *stage,
if (v0->clipmask) {
interp( clipper, stage->tmp[0], t0, v0, v1, viewport_index );
- copy_flat(stage, stage->tmp[0], v0);
+ if (stage->draw->rasterizer->flatshade_first) {
+ copy_flat(stage, stage->tmp[0], v0); /* copy v0 color to tmp[0] */
+ }
+ else {
+ copy_flat(stage, stage->tmp[0], v1); /* copy v1 color to tmp[0] */
+ }
newprim.v[0] = stage->tmp[0];
}
else {
@@ -597,6 +602,12 @@ do_clip_line( struct draw_stage *stage,
if (v1->clipmask) {
interp( clipper, stage->tmp[1], t1, v1, v0, viewport_index );
+ if (stage->draw->rasterizer->flatshade_first) {
+ copy_flat(stage, stage->tmp[1], v0); /* copy v0 color to tmp[1] */
+ }
+ else {
+ copy_flat(stage, stage->tmp[1], v1); /* copy v1 color to tmp[1] */
+ }
newprim.v[1] = stage->tmp[1];
}
else {