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gallium: finish remaining prim types for sp_vbuf_draw_arrays()

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Not totally tested, but easily fixed if glitches are found.
This commit is contained in:
Brian 2008-03-16 10:33:59 -06:00
parent cb98f71d42
commit 49a687882a
1 changed files with 73 additions and 0 deletions
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73
src/gallium/drivers/softpipe/sp_prim_vbuf.c
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@ -207,6 +207,27 @@ 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 +238,58 @@ 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++) {