draw/gs: preserve leading vertex info for gs

We need to handle the leading vertex information when
assembling primitives for the geometry shader otherwise
the resulting triangles will have vertices at incorrect
input locations.

Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: José Fonseca <jfonseca@vmware.com>

diff --git a/src/gallium/auxiliary/draw/draw_gs_tmp.h b/src/gallium/auxiliary/draw/draw_gs_tmp.h
index 92b6fb75ea1a04d78d8f5d9116e3e66d499edf45..b10bbc413d9de8123a80d2857bedcb0895c4d40b 100644 (file)
--- a/src/gallium/auxiliary/draw/draw_gs_tmp.h
+++ b/src/gallium/auxiliary/draw/draw_gs_tmp.h
@@ -10,7 +10,7 @@
    const unsigned prim_flags = input_prims->flags;                \
    const unsigned count = input_prims->count;                     \
    const boolean quads_flatshade_last = FALSE;                    \
-   const boolean last_vertex_last = TRUE;                         \
+   const boolean last_vertex_last = !gs->draw->rasterizer->flatshade_first;  \
    do {                                                           \
       debug_assert(input_prims->primitive_count == 1);            \
       switch (prim) {                                             \