diff options
Diffstat (limited to 'src/gallium/drivers/softpipe/sp_prim_vbuf.c')
| -rw-r--r-- | src/gallium/drivers/softpipe/sp_prim_vbuf.c | 86 |
1 files changed, 84 insertions, 2 deletions
diff --git a/src/gallium/drivers/softpipe/sp_prim_vbuf.c b/src/gallium/drivers/softpipe/sp_prim_vbuf.c index db0913cb2bc..d940718ed2b 100644 --- a/src/gallium/drivers/softpipe/sp_prim_vbuf.c +++ b/src/gallium/drivers/softpipe/sp_prim_vbuf.c @@ -101,11 +101,20 @@ sp_vbuf_release_vertices(struct vbuf_render *vbr, void *vertices, } -static void +static boolean sp_vbuf_set_primitive(struct vbuf_render *vbr, unsigned prim) { struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr); - cvbr->prim = prim; + if (prim == PIPE_PRIM_TRIANGLES || + prim == PIPE_PRIM_LINES || + prim == PIPE_PRIM_POINTS) { + cvbr->prim = prim; + return TRUE; + } + else { + return FALSE; + } + } @@ -207,6 +216,27 @@ sp_vbuf_draw_arrays(struct vbuf_render *vbr, uint start, uint nr) (struct vertex_header *) ((char *) vertex_buffer + (I) * vertex_size) switch (cvbr->prim) { + case PIPE_PRIM_POINTS: + for (i = 0; i < nr; i++) { + prim.v[0] = VERTEX(i); + setup->point( setup, &prim ); + } + break; + case PIPE_PRIM_LINES: + assert(nr % 2 == 0); + for (i = 0; i < nr; i += 2) { + prim.v[0] = VERTEX(i); + prim.v[1] = VERTEX(i + 1); + setup->line( setup, &prim ); + } + break; + case PIPE_PRIM_LINE_STRIP: + for (i = 1; i < nr; i++) { + prim.v[0] = VERTEX(i - 1); + prim.v[1] = VERTEX(i); + setup->line( setup, &prim ); + } + break; case PIPE_PRIM_TRIANGLES: assert(nr % 3 == 0); for (i = 0; i < nr; i += 3) { @@ -217,6 +247,58 @@ sp_vbuf_draw_arrays(struct vbuf_render *vbr, uint start, uint nr) setup->tri( setup, &prim ); } break; + case PIPE_PRIM_TRIANGLE_STRIP: + assert(nr >= 3); + for (i = 2; i < nr; i++) { + prim.v[0] = VERTEX(i - 2); + prim.v[1] = VERTEX(i - 1); + prim.v[2] = VERTEX(i); + calc_det(&prim); + setup->tri( setup, &prim ); + } + break; + case PIPE_PRIM_TRIANGLE_FAN: + assert(nr >= 3); + for (i = 2; i < nr; i++) { + prim.v[0] = VERTEX(0); + prim.v[1] = VERTEX(i - 1); + prim.v[2] = VERTEX(i); + calc_det(&prim); + setup->tri( setup, &prim ); + } + break; + case PIPE_PRIM_QUADS: + assert(nr % 4 == 0); + for (i = 0; i < nr; i += 4) { + prim.v[0] = VERTEX(i + 0); + prim.v[1] = VERTEX(i + 1); + prim.v[2] = VERTEX(i + 2); + calc_det(&prim); + setup->tri( setup, &prim ); + + prim.v[0] = VERTEX(i + 0); + prim.v[1] = VERTEX(i + 2); + prim.v[2] = VERTEX(i + 3); + calc_det(&prim); + setup->tri( setup, &prim ); + } + break; + case PIPE_PRIM_QUAD_STRIP: + assert(nr >= 4); + for (i = 2; i < nr; i += 2) { + prim.v[0] = VERTEX(i - 2); + prim.v[1] = VERTEX(i); + prim.v[2] = VERTEX(i + 1); + calc_det(&prim); + setup->tri( setup, &prim ); + + prim.v[0] = VERTEX(i - 2); + prim.v[1] = VERTEX(i + 1); + prim.v[2] = VERTEX(i - 1); + calc_det(&prim); + setup->tri( setup, &prim ); + } + break; case PIPE_PRIM_POLYGON: /* draw as tri fan */ for (i = 2; i < nr; i++) { |