diff options
Diffstat (limited to 'src/gallium/auxiliary/draw/draw_pt_vcache_tmp.h')
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_pt_vcache_tmp.h | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/draw/draw_pt_vcache_tmp.h b/src/gallium/auxiliary/draw/draw_pt_vcache_tmp.h new file mode 100644 index 0000000000..ec05bbeab4 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pt_vcache_tmp.h @@ -0,0 +1,177 @@ + + +static void FUNC( struct draw_pt_front_end *frontend, + pt_elt_func get_elt, + const void *elts, + unsigned count ) +{ + struct vcache_frontend *vcache = (struct vcache_frontend *)frontend; + struct draw_context *draw = vcache->draw; + + boolean flatfirst = (draw->rasterizer->flatshade && + draw->rasterizer->flatshade_first); + unsigned i; + ushort flags; + + if (0) debug_printf("%s %d\n", __FUNCTION__, count); + + + switch (vcache->input_prim) { + case PIPE_PRIM_POINTS: + for (i = 0; i < count; i ++) { + POINT( vcache, + get_elt(elts, i + 0) ); + } + break; + + case PIPE_PRIM_LINES: + for (i = 0; i+1 < count; i += 2) { + LINE( vcache, + DRAW_PIPE_RESET_STIPPLE, + get_elt(elts, i + 0), + get_elt(elts, i + 1)); + } + break; + + case PIPE_PRIM_LINE_LOOP: + if (count >= 2) { + flags = DRAW_PIPE_RESET_STIPPLE; + + for (i = 1; i < count; i++, flags = 0) { + LINE( vcache, + flags, + get_elt(elts, i - 1), + get_elt(elts, i )); + } + + LINE( vcache, + flags, + get_elt(elts, i - 1), + get_elt(elts, 0 )); + } + break; + + case PIPE_PRIM_LINE_STRIP: + flags = DRAW_PIPE_RESET_STIPPLE; + for (i = 1; i < count; i++, flags = 0) { + LINE( vcache, + flags, + get_elt(elts, i - 1), + get_elt(elts, i )); + } + break; + + case PIPE_PRIM_TRIANGLES: + for (i = 0; i+2 < count; i += 3) { + TRIANGLE( vcache, + DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL, + get_elt(elts, i + 0), + get_elt(elts, i + 1), + get_elt(elts, i + 2 )); + } + break; + + case PIPE_PRIM_TRIANGLE_STRIP: + if (flatfirst) { + for (i = 0; i+2 < count; i++) { + TRIANGLE( vcache, + DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL, + get_elt(elts, i + 0), + get_elt(elts, i + 1 + (i&1)), + get_elt(elts, i + 2 - (i&1))); + } + } + else { + for (i = 0; i+2 < count; i++) { + TRIANGLE( vcache, + DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL, + get_elt(elts, i + 0 + (i&1)), + get_elt(elts, i + 1 - (i&1)), + get_elt(elts, i + 2 )); + } + } + break; + + case PIPE_PRIM_TRIANGLE_FAN: + if (count >= 3) { + if (flatfirst) { + for (i = 0; i+2 < count; i++) { + TRIANGLE( vcache, + DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL, + get_elt(elts, i + 1), + get_elt(elts, i + 2), + get_elt(elts, 0 )); + } + } + else { + for (i = 0; i+2 < count; i++) { + TRIANGLE( vcache, + DRAW_PIPE_RESET_STIPPLE | DRAW_PIPE_EDGE_FLAG_ALL, + get_elt(elts, 0), + get_elt(elts, i + 1), + get_elt(elts, i + 2 )); + } + } + } + break; + + + case PIPE_PRIM_QUADS: + for (i = 0; i+3 < count; i += 4) { + QUAD( vcache, + get_elt(elts, i + 0), + get_elt(elts, i + 1), + get_elt(elts, i + 2), + get_elt(elts, i + 3)); + } + break; + + case PIPE_PRIM_QUAD_STRIP: + for (i = 0; i+3 < count; i += 2) { + QUAD( vcache, + get_elt(elts, i + 2), + get_elt(elts, i + 0), + get_elt(elts, i + 1), + get_elt(elts, i + 3)); + } + break; + + case PIPE_PRIM_POLYGON: + { + /* These bitflags look a little odd because we submit the + * vertices as (1,2,0) to satisfy flatshade requirements. + */ + const ushort edge_first = DRAW_PIPE_EDGE_FLAG_2; + const ushort edge_middle = DRAW_PIPE_EDGE_FLAG_0; + const ushort edge_last = DRAW_PIPE_EDGE_FLAG_1; + + flags = DRAW_PIPE_RESET_STIPPLE | edge_first | edge_middle; + + for (i = 0; i+2 < count; i++, flags = edge_middle) { + + if (i + 3 == count) + flags |= edge_last; + + TRIANGLE( vcache, + flags, + get_elt(elts, i + 1), + get_elt(elts, i + 2), + get_elt(elts, 0)); + } + } + break; + + default: + assert(0); + break; + } + + vcache_flush( vcache ); +} + + +#undef TRIANGLE +#undef QUAD +#undef POINT +#undef LINE +#undef FUNC |