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, 3 insertions, 2 deletions

diff --git a/src/gallium/auxiliary/draw/draw_pipe_unfilled.c b/src/gallium/auxiliary/draw/draw_pipe_unfilled.c
index a30fada86a..d1f05129b9 100644
--- a/src/gallium/auxiliary/draw/draw_pipe_unfilled.c
+++ b/src/gallium/auxiliary/draw/draw_pipe_unfilled.c
@@ -159,9 +159,10 @@ static void unfilled_first_tri( struct draw_stage *stage,
 				struct prim_header *header )
 {
    struct unfilled_stage *unfilled = unfilled_stage(stage);
+   const struct pipe_rasterizer_state *rast = stage->draw->rasterizer;
 
-   unfilled->mode[0] = stage->draw->rasterizer->fill_ccw; /* front */
-   unfilled->mode[1] = stage->draw->rasterizer->fill_cw;  /* back */
+   unfilled->mode[rast->front_ccw ? 0 : 1] = rast->fill_front;
+   unfilled->mode[rast->front_ccw ? 1 : 0] = rast->fill_back;
 
    stage->tri = unfilled_tri;
    stage->tri( stage, header );