/**
- * Prototype for a 7 plane rasterizer function. Will codegenerate
+ * Prototype for a 8 plane rasterizer function. Will codegenerate
* several of these.
*
* XXX: Varients for more/fewer planes.
int j;
for (j = 0; j < NR_PLANES; j++) {
- mask &= ~build_mask(c[j] - 1,
- -plane[j].dcdx,
- plane[j].dcdy);
+ mask &= ~build_mask_linear(c[j] - 1,
+ -plane[j].dcdx,
+ plane[j].dcdy);
}
/* Now pass to the shader:
for (j = 0; j < NR_PLANES; j++) {
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);
+ const int cox = plane[j].eo * 4;
+ 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,
+ dcdx, dcdy,
+ &outmask, /* sign bits from c[i][0..15] + cox */
+ &partmask); /* sign bits from c[i][0..15] + cio */
}
if (outmask == 0xffff)
{
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];
unsigned outmask, inmask, partmask, partial_mask;
unsigned j = 0;
+ if (tri->inputs.disable) {
+ /* This triangle was partially binned and has been disabled */
+ return;
+ }
+
outmask = 0; /* outside one or more trivial reject planes */
partmask = 0; /* outside one or more trivial accept planes */
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;
{
const int dcdx = -plane[j].dcdx * 16;
const int dcdy = plane[j].dcdy * 16;
- const int cox = c[j] + plane[j].eo * 16;
- const int cio = c[j] + plane[j].ei * 16 - 1;
-
- outmask |= build_mask_linear(cox, dcdx, dcdy);
- partmask |= build_mask_linear(cio, dcdx, dcdy);
+ const int cox = plane[j].eo * 16;
+ 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,
+ dcdx, dcdy,
+ &outmask, /* sign bits from c[i][0..15] + cox */
+ &partmask); /* sign bits from c[i][0..15] + cio */
}
j++;
}
}
+#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
projects / mesa.git / blobdiff