diff options
| -rw-r--r-- | src/gallium/drivers/nv50/nv50_program.c | 23 |
1 files changed, 11 insertions, 12 deletions
diff --git a/src/gallium/drivers/nv50/nv50_program.c b/src/gallium/drivers/nv50/nv50_program.c index 20db51070ff..cd2fd0a076e 100644 --- a/src/gallium/drivers/nv50/nv50_program.c +++ b/src/gallium/drivers/nv50/nv50_program.c @@ -3728,13 +3728,21 @@ nv50_program_tx_prep(struct nv50_pc *pc) copy_semantic_info(p); } else if (p->type == PIPE_SHADER_FRAGMENT) { - int rid, aid, base; + int rid, aid; unsigned n = 0, m = pc->attr_nr - flat_nr; pc->allow32 = TRUE; - base = (TGSI_SEMANTIC_POSITION == - p->info.input_semantic_name[0]) ? 0 : 1; + /* do we read FragCoord ? */ + if (pc->attr_nr && + p->info.input_semantic_name[0] == TGSI_SEMANTIC_POSITION) { + /* select FCRD components we want accessible */ + for (c = 0; c < 4; ++c) + if (pc->attr[c].acc) + p->cfg.regs[1] |= 1 << (24 + c); + aid = 0; + } else /* offset by 1 if FCRD.w is needed for pinterp */ + aid = popcnt4(p->cfg.regs[1] >> 24); /* non-flat interpolants have to be mapped to * the lower hardware IDs, so sort them: @@ -3750,12 +3758,6 @@ nv50_program_tx_prep(struct nv50_pc *pc) } copy_semantic_info(p); - if (!base) /* set w-coordinate mask from perspective interp */ - p->cfg.in[0].mask |= p->cfg.regs[1] >> 24; - - aid = popcnt4( /* if fcrd isn't contained in cfg.io */ - base ? (p->cfg.regs[1] >> 24) : p->cfg.in[0].mask); - for (n = 0; n < pc->attr_nr; ++n) { p->cfg.in[n].hw = rid = aid; i = p->cfg.in[n].id; @@ -3777,9 +3779,6 @@ nv50_program_tx_prep(struct nv50_pc *pc) aid += popcnt4(p->cfg.in[n].mask); } - if (!base) - p->cfg.regs[1] |= p->cfg.in[0].mask << 24; - m = popcnt4(p->cfg.regs[1] >> 24); /* set count of non-position inputs and of non-flat |