diff options
Diffstat (limited to 'src/gallium/drivers/llvmpipe')
-rw-r--r-- | src/gallium/drivers/llvmpipe/lp_rast.h | 4 | ||||
-rw-r--r-- | src/gallium/drivers/llvmpipe/lp_rast_tri.c | 82 | ||||
-rw-r--r-- | src/gallium/drivers/llvmpipe/lp_setup_tri.c | 20 |
3 files changed, 106 insertions, 0 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_rast.h b/src/gallium/drivers/llvmpipe/lp_rast.h index 44319a0ad6..102e902d02 100644 --- a/src/gallium/drivers/llvmpipe/lp_rast.h +++ b/src/gallium/drivers/llvmpipe/lp_rast.h @@ -256,5 +256,9 @@ void lp_rast_begin_query(struct lp_rasterizer_task *, void lp_rast_end_query(struct lp_rasterizer_task *, const union lp_rast_cmd_arg ); +void +lp_rast_triangle_3_16(struct lp_rasterizer_task *task, + const union lp_rast_cmd_arg arg); + #endif diff --git a/src/gallium/drivers/llvmpipe/lp_rast_tri.c b/src/gallium/drivers/llvmpipe/lp_rast_tri.c index 980c18c024..673f67386b 100644 --- a/src/gallium/drivers/llvmpipe/lp_rast_tri.c +++ b/src/gallium/drivers/llvmpipe/lp_rast_tri.c @@ -157,3 +157,85 @@ build_mask_linear(int c, int dcdx, int dcdy) #define NR_PLANES 7 #include "lp_rast_tri_tmp.h" + +/* Special case for 3 plane triangle which is contained entirely + * within a 16x16 block. + */ +void +lp_rast_triangle_3_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 = tri->plane; + unsigned mask = arg.triangle.plane_mask; + const int x = task->x + (mask & 0xf) * 16; + const int y = task->y + (mask >> 4) * 16; + unsigned outmask, inmask, partmask, partial_mask; + unsigned j; + int c[3]; + + outmask = 0; /* outside one or more trivial reject planes */ + partmask = 0; /* outside one or more trivial accept planes */ + + for (j = 0; j < 3; j++) { + c[j] = plane[j].c + plane[j].dcdy * y - plane[j].dcdx * x; + + { + const int dcdx = -plane[j].dcdx * 4; + const int dcdy = plane[j].dcdy * 4; + const int cox = c[j] + plane[j].eo * 4; + const int cio = c[j] + plane[j].ei * 4 - 1; + + outmask |= build_mask_linear(cox, dcdx, dcdy); + partmask |= build_mask_linear(cio, dcdx, dcdy); + } + } + + if (outmask == 0xffff) + return; + + /* Mask of sub-blocks which are inside all trivial accept planes: + */ + inmask = ~partmask & 0xffff; + + /* Mask of sub-blocks which are inside all trivial reject planes, + * but outside at least one trivial accept plane: + */ + partial_mask = partmask & ~outmask; + + assert((partial_mask & inmask) == 0); + + /* 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; + int cx[3]; + + partial_mask &= ~(1 << i); + + for (j = 0; j < 3; j++) + cx[j] = (c[j] + - plane[j].dcdx * ix + + plane[j].dcdy * iy); + + do_block_4_3(task, tri, plane, px, py, cx); + } + + /* Iterate over fulls: + */ + while (inmask) { + int i = ffs(inmask) - 1; + int ix = (i & 3) * 4; + int iy = (i >> 2) * 4; + int px = x + ix; + int py = y + iy; + + inmask &= ~(1 << i); + + block_full_4(task, tri, px, py); + } +} diff --git a/src/gallium/drivers/llvmpipe/lp_setup_tri.c b/src/gallium/drivers/llvmpipe/lp_setup_tri.c index 393533ebee..614a6372b4 100644 --- a/src/gallium/drivers/llvmpipe/lp_setup_tri.c +++ b/src/gallium/drivers/llvmpipe/lp_setup_tri.c @@ -643,6 +643,26 @@ do_triangle_ccw(struct lp_setup_context *setup, /* Convert to tile coordinates, and inclusive ranges: */ + if (nr_planes == 3) { + int ix0 = minx / 16; + int iy0 = miny / 16; + int ix1 = (maxx-1) / 16; + int iy1 = (maxy-1) / 16; + + if (iy0 == iy1 && ix0 == ix1) + { + + /* Triangle is contained in a single 16x16 block: + */ + int mask = (ix0 & 3) | ((iy0 & 3) << 4); + + lp_scene_bin_command( scene, ix0/4, iy0/4, + lp_rast_triangle_3_16, + lp_rast_arg_triangle(tri, mask) ); + return; + } + } + ix0 = minx / TILE_SIZE; iy0 = miny / TILE_SIZE; ix1 = (maxx-1) / TILE_SIZE; |