diff options
| author | Michal Krol <[email protected]> | 2008-03-25 23:49:11 +0100 |
|---|---|---|
| committer | Michal Krol <[email protected]> | 2008-03-25 23:51:52 +0100 |
| commit | e1543fa55c7972e3634f3f7ba297c010337dfb0d (patch) | |
| tree | 51d2e842b624bedca91721cbff83a3c5248c0d71 /src/gallium/auxiliary/draw | |
| parent | dc9757e1a8a0451a198d329880558b805adff42a (diff) | |
draw: Take flatshade_first rasterizer bit into account.
Diffstat (limited to 'src/gallium/auxiliary/draw')
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_prim.c | 162 |
1 files changed, 117 insertions, 45 deletions
diff --git a/src/gallium/auxiliary/draw/draw_prim.c b/src/gallium/auxiliary/draw/draw_prim.c index 75b2f79babb..f589d0c0173 100644 --- a/src/gallium/auxiliary/draw/draw_prim.c +++ b/src/gallium/auxiliary/draw/draw_prim.c @@ -330,6 +330,8 @@ draw_prim( struct draw_context *draw, unsigned i; boolean unfilled = (draw->rasterizer->fill_cw != PIPE_POLYGON_MODE_FILL || draw->rasterizer->fill_ccw != PIPE_POLYGON_MODE_FILL); + boolean flatfirst = + (draw->rasterizer->flatshade & draw->rasterizer->flatshade_first) ? TRUE : FALSE; // debug_printf("%s (%d) %d/%d\n", __FUNCTION__, draw->prim, start, count ); @@ -342,11 +344,21 @@ draw_prim( struct draw_context *draw, break; case PIPE_PRIM_LINES: - for (i = 0; i+1 < count; i += 2) { - do_line( draw, - TRUE, - start + i + 0, - start + i + 1); + if (flatfirst) { + for (i = 0; i+1 < count; i += 2) { + do_line( draw, + TRUE, + start + i + 1, + start + i + 0); + } + } + else { + for (i = 0; i+1 < count; i += 2) { + do_line( draw, + TRUE, + start + i + 0, + start + i + 1); + } } break; @@ -367,60 +379,120 @@ draw_prim( struct draw_context *draw, break; case PIPE_PRIM_LINE_STRIP: - for (i = 1; i < count; i++) { - do_line( draw, - i == 1, - start + i - 1, - start + i ); + if (flatfirst) { + for (i = 1; i < count; i++) { + do_line( draw, + i == 1, + start + i, + start + i - 1 ); + } + } + else { + for (i = 1; i < count; i++) { + do_line( draw, + i == 1, + start + i - 1, + start + i ); + } } break; case PIPE_PRIM_TRIANGLES: - if (unfilled) { - for (i = 0; i+2 < count; i += 3) { - do_ef_triangle( draw, - 1, - ~0, - start + i + 0, - start + i + 1, - start + i + 2 ); - } - } + if (flatfirst) { + if (unfilled) { + for (i = 0; i+2 < count; i += 3) { + do_ef_triangle( draw, + 1, + ~0, + start + i + 1, + start + i + 2, + start + i + 0 ); + } + } + else { + for (i = 0; i+2 < count; i += 3) { + do_triangle( draw, + start + i + 1, + start + i + 2, + start + i + 0 ); + } + } + } else { - for (i = 0; i+2 < count; i += 3) { - do_triangle( draw, - start + i + 0, - start + i + 1, - start + i + 2 ); - } + if (unfilled) { + for (i = 0; i+2 < count; i += 3) { + do_ef_triangle( draw, + 1, + ~0, + start + i + 0, + start + i + 1, + start + i + 2 ); + } + } + else { + for (i = 0; i+2 < count; i += 3) { + do_triangle( draw, + start + i + 0, + start + i + 1, + start + i + 2 ); + } + } } break; case PIPE_PRIM_TRIANGLE_STRIP: - for (i = 0; i+2 < count; i++) { - if (i & 1) { - do_triangle( draw, - start + i + 1, - start + i + 0, - start + i + 2 ); - } - else { - do_triangle( draw, - start + i + 0, - start + i + 1, - start + i + 2 ); - } + if (flatfirst) { + for (i = 0; i+2 < count; i++) { + if (i & 1) { + do_triangle( draw, + start + i + 2, + start + i + 1, + start + i + 0 ); + } + else { + do_triangle( draw, + start + i + 1, + start + i + 2, + start + i + 0 ); + } + } + } + else { + for (i = 0; i+2 < count; i++) { + if (i & 1) { + do_triangle( draw, + start + i + 1, + start + i + 0, + start + i + 2 ); + } + else { + do_triangle( draw, + start + i + 0, + start + i + 1, + start + i + 2 ); + } + } } break; case PIPE_PRIM_TRIANGLE_FAN: if (count >= 3) { - for (i = 0; i+2 < count; i++) { - do_triangle( draw, - start + 0, - start + i + 1, - start + i + 2 ); - } + if (flatfirst) { + for (i = 0; i+2 < count; i++) { + do_triangle( draw, + start + i + 2, + start + 0, + start + i + 1 ); + } + } + else { + for (i = 0; i+2 < count; i++) { + do_triangle( draw, + start + 0, + start + i + 1, + start + i + 2 ); + } + } } break; |