draw: Add flags to draw_prim_info.

A primitive may be splitted in frontends.  The splitted primitives
should convey certain flag bits so that the decomposer can correctly
decide the stipple or edge flags.

This commit adds flags to draw_prim_info and updates the decomposer to
honor the flags.  Frontends and middle ends will be updated later.

1 files changed, 5 insertions, 0 deletions

diff --git a/src/gallium/auxiliary/draw/draw_private.h b/src/gallium/auxiliary/draw/draw_private.h
index 397d4bf653..826f5dc98c 100644
--- a/src/gallium/auxiliary/draw/draw_private.h
+++ b/src/gallium/auxiliary/draw/draw_private.h
@@ -296,6 +296,10 @@ struct draw_vertex_info {
    unsigned count;
 };
 
+/* these flags are set if the primitive is a segment of a larger one */
+#define DRAW_SPLIT_BEFORE 0x1
+#define DRAW_SPLIT_AFTER  0x2
+
 struct draw_prim_info {
    boolean linear;
    unsigned start;
@@ -304,6 +308,7 @@ struct draw_prim_info {
    unsigned count;
 
    unsigned prim;
+   unsigned flags;
    unsigned *primitive_lengths;
    unsigned primitive_count;
 };