diff options
Diffstat (limited to 'src/gallium/drivers/nv50')
| -rw-r--r-- | src/gallium/drivers/nv50/nv50_program.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/gallium/drivers/nv50/nv50_program.c b/src/gallium/drivers/nv50/nv50_program.c index 0274545131..44914f41b6 100644 --- a/src/gallium/drivers/nv50/nv50_program.c +++ b/src/gallium/drivers/nv50/nv50_program.c @@ -727,6 +727,22 @@ emit_lit(struct nv50_pc *pc, struct nv50_reg **dst, struct nv50_reg **src) set_pred(pc, 3, 0, &pc->p->insns[pc->p->insns_nr - 2]); } +static void +emit_neg(struct nv50_pc *pc, struct nv50_reg *dst, struct nv50_reg *src) +{ + unsigned inst[2] = { 0, 0 }; + + set_long(pc, inst); + inst[0] |= 0xa0000000; /* delta */ + inst[1] |= (7 << 29); /* delta */ + inst[1] |= 0x04000000; /* negate arg0? probably not */ + inst[1] |= (1 << 14); /* src .f32 */ + set_dst(pc, dst, inst); + set_src_0(pc, src, inst); + + emit(pc, inst); +} + static struct nv50_reg * tgsi_dst(struct nv50_pc *pc, int c, const struct tgsi_full_dst_register *dst) { @@ -794,6 +810,17 @@ tgsi_src(struct nv50_pc *pc, int chan, const struct tgsi_full_src_register *src) emit_abs(pc, temp, r); r = temp; break; + case TGSI_UTIL_SIGN_TOGGLE: + temp = temp_temp(pc); + emit_neg(pc, temp, r); + r = temp; + break; + case TGSI_UTIL_SIGN_SET: + temp = temp_temp(pc); + emit_abs(pc, temp, r); + emit_neg(pc, temp, r); + r = temp; + break; default: assert(0); break; |