diff options
| author | Christoph Bumiller <e0425955@student.tuwien.ac.at> | 2009-08-15 16:22:27 +0200 |
|---|---|---|
| committer | Christoph Bumiller <e0425955@student.tuwien.ac.at> | 2009-08-15 16:22:27 +0200 |
| commit | a2af40b846e0b510887aaf15c2777387a3caae62 (patch) | |
| tree | bcd09189a63f5d1a62aa5497a6bec5f5553aae97 /src/gallium/drivers/nv50 | |
| parent | f2daded8123c0d82e4cd29710a5b2dfcc99068a1 (diff) | |
nv50: align registers used with TEX to 4
The TEX instruction is passed the first index of a contiguous
range of 4 TEMP registers that contain coordinates / LOD and,
after execution, the texel values.
It seems the first index is required to be a multiple of 4 on
some (older ?) cards.
Diffstat (limited to 'src/gallium/drivers/nv50')
| -rw-r--r-- | src/gallium/drivers/nv50/nv50_program.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/gallium/drivers/nv50/nv50_program.c b/src/gallium/drivers/nv50/nv50_program.c index fefccd0b2a..e45769c069 100644 --- a/src/gallium/drivers/nv50/nv50_program.c +++ b/src/gallium/drivers/nv50/nv50_program.c @@ -251,7 +251,7 @@ alloc_temp4(struct nv50_pc *pc, struct nv50_reg *dst[4], int idx) if (pc->r_temp[idx] || pc->r_temp[idx + 1] || pc->r_temp[idx + 2] || pc->r_temp[idx + 3]) - return alloc_temp4(pc, dst, idx + 1); + return alloc_temp4(pc, dst, idx + 4); for (i = 0; i < 4; i++) { dst[i] = CALLOC_STRUCT(nv50_reg); @@ -1014,6 +1014,7 @@ emit_tex(struct nv50_pc *pc, struct nv50_reg **dst, unsigned mask, break; } + /* some cards need t[0]'s hw index to be a multiple of 4 */ alloc_temp4(pc, t, 0); if (proj) { |