diff options
Diffstat (limited to 'src/gallium/drivers/llvmpipe/lp_rast_tri_tmp.h')
-rw-r--r-- | src/gallium/drivers/llvmpipe/lp_rast_tri_tmp.h | 136 |
1 files changed, 133 insertions, 3 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_rast_tri_tmp.h b/src/gallium/drivers/llvmpipe/lp_rast_tri_tmp.h index 9830a43ba5..4825d651c0 100644 --- a/src/gallium/drivers/llvmpipe/lp_rast_tri_tmp.h +++ b/src/gallium/drivers/llvmpipe/lp_rast_tri_tmp.h @@ -82,7 +82,8 @@ TAG(do_block_16)(struct lp_rasterizer_task *task, const int dcdx = -plane[j].dcdx * 4; const int dcdy = plane[j].dcdy * 4; const int cox = plane[j].eo * 4; - const int cio = plane[j].ei * 4 - 1; + const int ei = plane[j].dcdy - plane[j].dcdx - plane[j].eo; + const int cio = ei * 4 - 1; build_masks(c[j] + cox, cio - cox, @@ -156,6 +157,7 @@ TAG(lp_rast_triangle)(struct lp_rasterizer_task *task, { const struct lp_rast_triangle *tri = arg.triangle.tri; unsigned plane_mask = arg.triangle.plane_mask; + const struct lp_rast_plane *tri_plane = GET_PLANES(tri); const int x = task->x, y = task->y; struct lp_rast_plane plane[NR_PLANES]; int c[NR_PLANES]; @@ -172,7 +174,7 @@ TAG(lp_rast_triangle)(struct lp_rasterizer_task *task, while (plane_mask) { int i = ffs(plane_mask) - 1; - plane[j] = tri->plane[i]; + plane[j] = tri_plane[i]; plane_mask &= ~(1 << i); c[j] = plane[j].c + plane[j].dcdy * y - plane[j].dcdx * x; @@ -180,7 +182,8 @@ TAG(lp_rast_triangle)(struct lp_rasterizer_task *task, const int dcdx = -plane[j].dcdx * 16; const int dcdy = plane[j].dcdy * 16; const int cox = plane[j].eo * 16; - const int cio = plane[j].ei * 16 - 1; + const int ei = plane[j].dcdy - plane[j].dcdx - plane[j].eo; + const int cio = ei * 16 - 1; build_masks(c[j] + cox, cio - cox, @@ -245,6 +248,133 @@ TAG(lp_rast_triangle)(struct lp_rasterizer_task *task, } } +#if defined(PIPE_ARCH_SSE) && defined(TRI_16) +/* XXX: special case this when intersection is not required. + * - tile completely within bbox, + * - bbox completely within tile. + */ +void +TRI_16(struct lp_rasterizer_task *task, + const union lp_rast_cmd_arg arg) +{ + const struct lp_rast_triangle *tri = arg.triangle.tri; + const struct lp_rast_plane *plane = GET_PLANES(tri); + unsigned mask = arg.triangle.plane_mask; + unsigned outmask, partial_mask; + unsigned j; + __m128i cstep4[NR_PLANES][4]; + + int x = (mask & 0xff); + int y = (mask >> 8); + + outmask = 0; /* outside one or more trivial reject planes */ + + x += task->x; + y += task->y; + + for (j = 0; j < NR_PLANES; j++) { + const int dcdx = -plane[j].dcdx * 4; + const int dcdy = plane[j].dcdy * 4; + __m128i xdcdy = _mm_set1_epi32(dcdy); + + cstep4[j][0] = _mm_setr_epi32(0, dcdx, dcdx*2, dcdx*3); + cstep4[j][1] = _mm_add_epi32(cstep4[j][0], xdcdy); + cstep4[j][2] = _mm_add_epi32(cstep4[j][1], xdcdy); + cstep4[j][3] = _mm_add_epi32(cstep4[j][2], xdcdy); + + { + const int c = plane[j].c + plane[j].dcdy * y - plane[j].dcdx * x; + const int cox = plane[j].eo * 4; + + outmask |= sign_bits4(cstep4[j], c + cox); + } + } + + if (outmask == 0xffff) + return; + + + /* Mask of sub-blocks which are inside all trivial reject planes, + * but outside at least one trivial accept plane: + */ + partial_mask = 0xffff & ~outmask; + + /* Iterate over partials: + */ + while (partial_mask) { + int i = ffs(partial_mask) - 1; + int ix = (i & 3) * 4; + int iy = (i >> 2) * 4; + int px = x + ix; + int py = y + iy; + unsigned mask = 0xffff; + + partial_mask &= ~(1 << i); + + for (j = 0; j < NR_PLANES; j++) { + const int cx = (plane[j].c - 1 + - plane[j].dcdx * px + + plane[j].dcdy * py) * 4; + + mask &= ~sign_bits4(cstep4[j], cx); + } + + if (mask) + lp_rast_shade_quads_mask(task, &tri->inputs, px, py, mask); + } +} +#endif + +#if defined(PIPE_ARCH_SSE) && defined(TRI_4) +void +TRI_4(struct lp_rasterizer_task *task, + const union lp_rast_cmd_arg arg) +{ + const struct lp_rast_triangle *tri = arg.triangle.tri; + const struct lp_rast_plane *plane = GET_PLANES(tri); + unsigned mask = arg.triangle.plane_mask; + const int x = task->x + (mask & 0xff); + const int y = task->y + (mask >> 8); + unsigned j; + + /* Iterate over partials: + */ + { + unsigned mask = 0xffff; + + for (j = 0; j < NR_PLANES; j++) { + const int cx = (plane[j].c + - plane[j].dcdx * x + + plane[j].dcdy * y); + + const int dcdx = -plane[j].dcdx; + const int dcdy = plane[j].dcdy; + __m128i xdcdy = _mm_set1_epi32(dcdy); + + __m128i cstep0 = _mm_setr_epi32(cx, cx + dcdx, cx + dcdx*2, cx + dcdx*3); + __m128i cstep1 = _mm_add_epi32(cstep0, xdcdy); + __m128i cstep2 = _mm_add_epi32(cstep1, xdcdy); + __m128i cstep3 = _mm_add_epi32(cstep2, xdcdy); + + __m128i cstep01 = _mm_packs_epi32(cstep0, cstep1); + __m128i cstep23 = _mm_packs_epi32(cstep2, cstep3); + __m128i result = _mm_packs_epi16(cstep01, cstep23); + + /* Extract the sign bits + */ + mask &= ~_mm_movemask_epi8(result); + } + + if (mask) + lp_rast_shade_quads_mask(task, &tri->inputs, x, y, mask); + } +} +#endif + + + #undef TAG +#undef TRI_4 +#undef TRI_16 #undef NR_PLANES |