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llvmpipe: Reshape the shader input from 8x2 to 4x4. 

Incorrect rendering until the interpolation code generation is updated.
This commit is contained in:
José Fonseca 2009-10-19 14:02:01 +01:00
parent 0580079864
commit 2f5f357c5b
3 changed files with 14 additions and 15 deletions
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19
src/gallium/drivers/llvmpipe/lp_rast_tri.c
View File

@ -34,7 +34,7 @@
#include "lp_tile_soa.h"
#define BLOCKSIZE 8
#define BLOCKSIZE 4
/* Convert 8x8 block into four runs of quads and render each in turn.
@ -55,11 +55,9 @@ static void block_full( struct lp_rasterizer *rast,
const struct lp_rast_triangle *tri,
int x, int y )
{
const unsigned masks[4] = {~0, ~0, 0, 0}; /* FIXME: Wasting quads!!! */
int iy;
const unsigned masks[4] = {~0, ~0, ~0, ~0};
for (iy = 0; iy < 4; iy += 2)
lp_rast_shade_quads(rast, &tri->inputs, x, y + iy, masks);
lp_rast_shade_quads(rast, &tri->inputs, x, y, masks);
}
#endif
@ -124,30 +122,29 @@ do_block( struct lp_rasterizer *rast,
int ix, iy;
unsigned masks[2][2] = {{0, 0}, {0, 0}};
for (iy = 0; iy < BLOCKSIZE; iy += 2) {
int cx1 = c1;
int cx2 = c2;
int cx3 = c3;
unsigned masks[4] = {0, 0, 0, 0};
for (ix = 0; ix < BLOCKSIZE; ix += 2) {
masks[ix >> 1] = do_quad(tri, x + ix, y + iy, cx1, cx2, cx3);
masks[iy >> 1][ix >> 1] = do_quad(tri, x + ix, y + iy, cx1, cx2, cx3);
cx1 += xstep1;
cx2 += xstep2;
cx3 += xstep3;
}
if(masks[0] || masks[1] || masks[2] || masks[3])
lp_rast_shade_quads(rast, &tri->inputs, x, y + iy, masks);
c1 += ystep1;
c2 += ystep2;
c3 += ystep3;
}
if(masks[0][0] || masks[0][1] || masks[1][0] || masks[1][1])
lp_rast_shade_quads(rast, &tri->inputs, x, y, &masks[0][0]);
}

4
src/gallium/drivers/llvmpipe/lp_tile_soa.h
View File

@ -46,8 +46,8 @@ struct pipe_transfer;
#define TILE_SIZE 64
#define TILE_VECTOR_HEIGHT 2
#define TILE_VECTOR_WIDTH 8
#define TILE_VECTOR_HEIGHT 4
#define TILE_VECTOR_WIDTH 4
extern const unsigned char
tile_offset[TILE_VECTOR_HEIGHT][TILE_VECTOR_WIDTH];

6
src/gallium/drivers/llvmpipe/lp_tile_soa.py
View File

@ -259,8 +259,10 @@ def main():
print
print 'const unsigned char'
print 'tile_offset[TILE_VECTOR_HEIGHT][TILE_VECTOR_WIDTH] = {'
print ' { 0, 1, 4, 5, 8, 9, 12, 13},'
print ' { 2, 3, 6, 7, 10, 11, 14, 15}'
print ' { 0, 1, 4, 5},'
print ' { 2, 3, 6, 7},'
print ' { 8, 9, 12, 13},'
print ' { 10, 11, 14, 15}'
print '};'
print