gallium: convert rasterizer state to use gl-style front/back concepts

Use front/back instead of cw/ccw throughout.
Also, use offset_point/line/fill instead of offset_cw/ccw.

Brings gallium representation of this state into line with its main
user, and also what turns out to be the most common hardware
representation.

This fixes a long-standing bias in the interface towards the
architecture of the software rasterizer.

1 files changed, 5 insertions, 5 deletions

diff --git a/src/gallium/drivers/llvmpipe/lp_setup_tri.c b/src/gallium/drivers/llvmpipe/lp_setup_tri.c
index 53b91690b6..fbbfa3275f 100644
--- a/src/gallium/drivers/llvmpipe/lp_setup_tri.c
+++ b/src/gallium/drivers/llvmpipe/lp_setup_tri.c
@@ -671,14 +671,14 @@ void
 lp_setup_choose_triangle( struct lp_setup_context *setup )
 {
    switch (setup->cullmode) {
-   case PIPE_WINDING_NONE:
+   case PIPE_FACE_NONE:
       setup->triangle = triangle_both;
       break;
-   case PIPE_WINDING_CCW:
-      setup->triangle = triangle_cw;
+   case PIPE_FACE_FRONT:
+      setup->triangle = setup->ccw_is_frontface ? triangle_ccw : triangle_cw;
       break;
-   case PIPE_WINDING_CW:
-      setup->triangle = triangle_ccw;
+   case PIPE_FACE_BACK:
+      setup->triangle = setup->ccw_is_frontface ? triangle_cw : triangle_ccw;
       break;
    default:
       setup->triangle = triangle_nop;