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softpipe: quads never provoke the first vertex

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This commit is contained in:
Marek Olšák 2010-03-07 04:56:06 +01:00
parent f2b8f14267
commit 558ce9964f
1 changed files with 12 additions and 68 deletions
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80
src/gallium/drivers/softpipe/sp_prim_vbuf.c
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@ -264,57 +264,29 @@ sp_vbuf_draw(struct vbuf_render *vbr, const ushort *indices, uint nr)
break;
case PIPE_PRIM_QUADS:
if (softpipe->rasterizer->flatshade_first) {
for (i = 3; i < nr; i += 4) {
sp_setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[i-2], stride),
get_vert(vertex_buffer, indices[i-1], stride),
get_vert(vertex_buffer, indices[i-3], stride) );
sp_setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[i-1], stride),
get_vert(vertex_buffer, indices[i-0], stride),
get_vert(vertex_buffer, indices[i-3], stride) );
}
}
else {
for (i = 3; i < nr; i += 4) {
sp_setup_tri( setup_ctx,
for (i = 3; i < nr; i += 4) {
sp_setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[i-3], stride),
get_vert(vertex_buffer, indices[i-2], stride),
get_vert(vertex_buffer, indices[i-0], stride) );
sp_setup_tri( setup_ctx,
sp_setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[i-2], stride),
get_vert(vertex_buffer, indices[i-1], stride),
get_vert(vertex_buffer, indices[i-0], stride) );
}
}
break;
case PIPE_PRIM_QUAD_STRIP:
if (softpipe->rasterizer->flatshade_first) {
for (i = 3; i < nr; i += 2) {
sp_setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[i-0], stride),
get_vert(vertex_buffer, indices[i-1], stride),
get_vert(vertex_buffer, indices[i-3], stride));
sp_setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[i-2], stride),
get_vert(vertex_buffer, indices[i-0], stride),
get_vert(vertex_buffer, indices[i-3], stride) );
}
}
else {
for (i = 3; i < nr; i += 2) {
sp_setup_tri( setup_ctx,
for (i = 3; i < nr; i += 2) {
sp_setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[i-3], stride),
get_vert(vertex_buffer, indices[i-2], stride),
get_vert(vertex_buffer, indices[i-0], stride) );
sp_setup_tri( setup_ctx,
sp_setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[i-1], stride),
get_vert(vertex_buffer, indices[i-3], stride),
get_vert(vertex_buffer, indices[i-0], stride) );
}
}
break;
@ -448,56 +420,28 @@ sp_vbuf_draw_arrays(struct vbuf_render *vbr, uint start, uint nr)
break;
case PIPE_PRIM_QUADS:
if (softpipe->rasterizer->flatshade_first) {
for (i = 3; i < nr; i += 4) {
sp_setup_tri( setup_ctx,
get_vert(vertex_buffer, i-2, stride),
get_vert(vertex_buffer, i-1, stride),
get_vert(vertex_buffer, i-3, stride) );
sp_setup_tri( setup_ctx,
get_vert(vertex_buffer, i-1, stride),
get_vert(vertex_buffer, i-0, stride),
get_vert(vertex_buffer, i-3, stride) );
}
}
else {
for (i = 3; i < nr; i += 4) {
sp_setup_tri( setup_ctx,
for (i = 3; i < nr; i += 4) {
sp_setup_tri( setup_ctx,
get_vert(vertex_buffer, i-3, stride),
get_vert(vertex_buffer, i-2, stride),
get_vert(vertex_buffer, i-0, stride) );
sp_setup_tri( setup_ctx,
sp_setup_tri( setup_ctx,
get_vert(vertex_buffer, i-2, stride),
get_vert(vertex_buffer, i-1, stride),
get_vert(vertex_buffer, i-0, stride) );
}
}
break;
case PIPE_PRIM_QUAD_STRIP:
if (softpipe->rasterizer->flatshade_first) {
for (i = 3; i < nr; i += 2) {
sp_setup_tri( setup_ctx,
get_vert(vertex_buffer, i-0, stride),
get_vert(vertex_buffer, i-1, stride),
get_vert(vertex_buffer, i-3, stride) );
sp_setup_tri( setup_ctx,
get_vert(vertex_buffer, i-2, stride),
get_vert(vertex_buffer, i-0, stride),
get_vert(vertex_buffer, i-3, stride) );
}
}
else {
for (i = 3; i < nr; i += 2) {
sp_setup_tri( setup_ctx,
for (i = 3; i < nr; i += 2) {
sp_setup_tri( setup_ctx,
get_vert(vertex_buffer, i-3, stride),
get_vert(vertex_buffer, i-2, stride),
get_vert(vertex_buffer, i-0, stride) );
sp_setup_tri( setup_ctx,
sp_setup_tri( setup_ctx,
get_vert(vertex_buffer, i-1, stride),
get_vert(vertex_buffer, i-3, stride),
get_vert(vertex_buffer, i-0, stride) );
}
}
break;