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path: root/src/gallium/drivers/softpipe/sp_prim_vbuf.c
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Diffstat (limited to 'src/gallium/drivers/softpipe/sp_prim_vbuf.c')
-rw-r--r--src/gallium/drivers/softpipe/sp_prim_vbuf.c16
1 files changed, 15 insertions, 1 deletions
diff --git a/src/gallium/drivers/softpipe/sp_prim_vbuf.c b/src/gallium/drivers/softpipe/sp_prim_vbuf.c
index eef6e5806c9..329c92b8da1 100644
--- a/src/gallium/drivers/softpipe/sp_prim_vbuf.c
+++ b/src/gallium/drivers/softpipe/sp_prim_vbuf.c
@@ -378,7 +378,6 @@ sp_vbuf_draw_arrays(struct vbuf_render *vbr, uint start, uint nr)
break;
case PIPE_PRIM_TRIANGLE_FAN:
- case PIPE_PRIM_POLYGON:
for (i = 2; i < nr; i += 1) {
setup_tri( setup_ctx,
get_vert(vertex_buffer, 0, stride),
@@ -386,6 +385,7 @@ sp_vbuf_draw_arrays(struct vbuf_render *vbr, uint start, uint nr)
get_vert(vertex_buffer, i-0, stride));
}
break;
+
case PIPE_PRIM_QUADS:
for (i = 3; i < nr; i += 4) {
setup_tri( setup_ctx,
@@ -412,6 +412,20 @@ sp_vbuf_draw_arrays(struct vbuf_render *vbr, uint start, uint nr)
get_vert(vertex_buffer, i-0, stride));
}
break;
+
+ case PIPE_PRIM_POLYGON:
+ /* Almost same as tri fan but the _first_ vertex specifies the flat
+ * shading color. Note that the first polygon vertex is passed as
+ * the last triangle vertex here.
+ */
+ for (i = 2; i < nr; i += 1) {
+ setup_tri( setup_ctx,
+ get_vert(vertex_buffer, i-0, stride),
+ get_vert(vertex_buffer, i-1, stride),
+ get_vert(vertex_buffer, 0, stride));
+ }
+ break;
+
default:
assert(0);
}