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Diffstat (limited to 'src/gallium/drivers/llvmpipe/lp_rast_tri.c')
-rw-r--r--src/gallium/drivers/llvmpipe/lp_rast_tri.c179
1 files changed, 21 insertions, 158 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_rast_tri.c b/src/gallium/drivers/llvmpipe/lp_rast_tri.c
index a5f0d14c95..ebe9a8e92b 100644
--- a/src/gallium/drivers/llvmpipe/lp_rast_tri.c
+++ b/src/gallium/drivers/llvmpipe/lp_rast_tri.c
@@ -113,168 +113,31 @@ block_full_16(struct lp_rasterizer_task *task,
block_full_4(task, tri, x + ix, y + iy);
}
+#define TAG(x) x##_1
+#define NR_PLANES 1
+#include "lp_rast_tri_tmp.h"
-/**
- * Pass the 4x4 pixel block to the shader function.
- * Determination of which of the 16 pixels lies inside the triangle
- * will be done as part of the fragment shader.
- */
-static void
-do_block_4(struct lp_rasterizer_task *task,
- const struct lp_rast_triangle *tri,
- int x, int y,
- int c1, int c2, int c3)
-{
- assert(x >= 0);
- assert(y >= 0);
-
- lp_rast_shade_quads(task, &tri->inputs, x, y, -c1, -c2, -c3);
-}
-
-
-/**
- * Evaluate a 16x16 block of pixels to determine which 4x4 subblocks are in/out
- * of the triangle's bounds.
- */
-static void
-do_block_16(struct lp_rasterizer_task *task,
- const struct lp_rast_triangle *tri,
- int x, int y,
- int c0, int c1, int c2)
-{
- unsigned mask = 0;
- int eo[3];
- int c[3];
- int i, j;
-
- assert(x >= 0);
- assert(y >= 0);
- assert(x % 16 == 0);
- assert(y % 16 == 0);
-
- eo[0] = tri->eo1 * 4;
- eo[1] = tri->eo2 * 4;
- eo[2] = tri->eo3 * 4;
-
- c[0] = c0;
- c[1] = c1;
- c[2] = c2;
-
- for (j = 0; j < 3; j++) {
- const int *step = tri->inputs.step[j];
- const int cx = c[j] + eo[j];
-
- /* Mask has bits set whenever we are outside any of the edges.
- */
- for (i = 0; i < 16; i++) {
- int out = cx + step[i] * 4;
- mask |= (out >> 31) & (1 << i);
- }
- }
+#define TAG(x) x##_2
+#define NR_PLANES 2
+#include "lp_rast_tri_tmp.h"
- mask = ~mask & 0xffff;
- while (mask) {
- int i = ffs(mask) - 1;
- int px = x + pos_table4[i][0];
- int py = y + pos_table4[i][1];
- int cx1 = c0 + tri->inputs.step[0][i] * 4;
- int cx2 = c1 + tri->inputs.step[1][i] * 4;
- int cx3 = c2 + tri->inputs.step[2][i] * 4;
+#define TAG(x) x##_3
+#define NR_PLANES 3
+#include "lp_rast_tri_tmp.h"
- mask &= ~(1 << i);
+#define TAG(x) x##_4
+#define NR_PLANES 4
+#include "lp_rast_tri_tmp.h"
- /* Don't bother testing if the 4x4 block is entirely in/out of
- * the triangle. It's a little faster to do it in the jit code.
- */
- LP_COUNT(nr_non_empty_4);
- do_block_4(task, tri, px, py, cx1, cx2, cx3);
- }
-}
-
-
-/**
- * Scan the tile in chunks and figure out which pixels to rasterize
- * for this triangle.
- */
-void
-lp_rast_triangle(struct lp_rasterizer_task *task,
- const union lp_rast_cmd_arg arg)
-{
- const struct lp_rast_triangle *tri = arg.triangle;
- const int x = task->x, y = task->y;
- int ei[3], eo[3], c[3];
- unsigned outmask, inmask, partial_mask;
- unsigned i, j;
-
- c[0] = tri->c1 + tri->dx12 * y - tri->dy12 * x;
- c[1] = tri->c2 + tri->dx23 * y - tri->dy23 * x;
- c[2] = tri->c3 + tri->dx31 * y - tri->dy31 * x;
-
- eo[0] = tri->eo1 * 16;
- eo[1] = tri->eo2 * 16;
- eo[2] = tri->eo3 * 16;
-
- ei[0] = tri->ei1 * 16;
- ei[1] = tri->ei2 * 16;
- ei[2] = tri->ei3 * 16;
-
- outmask = 0;
- inmask = 0xffff;
+#define TAG(x) x##_5
+#define NR_PLANES 5
+#include "lp_rast_tri_tmp.h"
- for (j = 0; j < 3; j++) {
- const int *step = tri->inputs.step[j];
- const int cox = c[j] + eo[j];
- const int cio = ei[j]- eo[j];
+#define TAG(x) x##_6
+#define NR_PLANES 6
+#include "lp_rast_tri_tmp.h"
- /* Outmask has bits set whenever we are outside any of the
- * edges.
- */
- /* Inmask has bits set whenever we are inside all of the edges.
- */
- for (i = 0; i < 16; i++) {
- int out = cox + step[i] * 16;
- int in = out + cio;
- outmask |= (out >> 31) & (1 << i);
- inmask &= ~((in >> 31) & (1 << i));
- }
- }
+#define TAG(x) x##_7
+#define NR_PLANES 7
+#include "lp_rast_tri_tmp.h"
- assert((outmask & inmask) == 0);
-
- if (outmask == 0xffff)
- return;
-
- /* Invert mask, so that bits are set whenever we are at least
- * partially inside all of the edges:
- */
- partial_mask = ~inmask & ~outmask & 0xffff;
-
- /* Iterate over partials:
- */
- while (partial_mask) {
- int i = ffs(partial_mask) - 1;
- int px = x + pos_table16[i][0];
- int py = y + pos_table16[i][1];
- int cx1 = c[0] + tri->inputs.step[0][i] * 16;
- int cx2 = c[1] + tri->inputs.step[1][i] * 16;
- int cx3 = c[2] + tri->inputs.step[2][i] * 16;
-
- partial_mask &= ~(1 << i);
-
- LP_COUNT(nr_partially_covered_16);
- do_block_16(task, tri, px, py, cx1, cx2, cx3);
- }
-
- /* Iterate over fulls:
- */
- while (inmask) {
- int i = ffs(inmask) - 1;
- int px = x + pos_table16[i][0];
- int py = y + pos_table16[i][1];
-
- inmask &= ~(1 << i);
-
- LP_COUNT(nr_fully_covered_16);
- block_full_16(task, tri, px, py);
- }
-}