fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-07 15:48:36 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 4

nv50: duplicate interps in load_proj_tex_coords

Browse source 
Otherwise we might clobber the origin interpolation result or
use the result of the RCP before its definition.
This commit is contained in:
Christoph Bumiller 2010-09-09 19:18:42 +02:00
parent 9cc80e25db
commit 246ebd7df1
1 changed files with 35 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

39
src/gallium/drivers/nv50/nv50_tgsi_to_nc.c
View file

@ -555,6 +555,34 @@ bld_insn_3(struct bld_context *bld, uint opcode,
return bld_def(insn, 0, new_value(bld->pc, NV_FILE_GPR, src0->reg.as_type));
}
static struct nv_value *
bld_duplicate_insn(struct bld_context *bld, struct nv_instruction *nvi)
{
struct nv_instruction *dupi = new_instruction(bld->pc, nvi->opcode);
int c;
if (nvi->def[0])
bld_def(dupi, 0, new_value_like(bld->pc, nvi->def[0]));
if (nvi->flags_def) {
dupi->flags_def = new_value_like(bld->pc, nvi->flags_def);
dupi->flags_def->insn = dupi;
}
for (c = 0; c < 5; ++c)
if (nvi->src[c])
nv_reference(bld->pc, &dupi->src[c], nvi->src[c]->value);
if (nvi->flags_src)
nv_reference(bld->pc, &dupi->flags_src, nvi->flags_src->value);
dupi->cc = nvi->cc;
dupi->saturate = nvi->saturate;
dupi->centroid = nvi->centroid;
dupi->flat = nvi->flat;
return dupi->def[0];
}
static void
bld_lmem_store(struct bld_context *bld, struct nv_value *ptr, int ofst,
struct nv_value *val)
@ -1232,6 +1260,7 @@ load_proj_tex_coords(struct bld_context *bld,
t[3] = emit_fetch(bld, insn, 0, 3);
if (t[3]->insn->opcode == NV_OP_PINTERP) {
t[3] = bld_duplicate_insn(bld, t[3]->insn);
t[3]->insn->opcode = NV_OP_LINTERP;
nv_reference(bld->pc, &t[3]->insn->src[1], NULL);
}
@ -1240,13 +1269,15 @@ load_proj_tex_coords(struct bld_context *bld,
for (c = 0; c < dim; ++c) {
t[c] = emit_fetch(bld, insn, 0, c);
if (t[c]->insn->opcode == NV_OP_LINTERP)
t[c]->insn->opcode = NV_OP_PINTERP;
if (t[c]->insn->opcode == NV_OP_PINTERP)
if (t[c]->insn->opcode == NV_OP_LINTERP ||
t[c]->insn->opcode == NV_OP_PINTERP) {
t[c] = bld_duplicate_insn(bld, t[c]->insn);
t[c]->insn->opcode = NV_OP_PINTERP;
nv_reference(bld->pc, &t[c]->insn->src[1], t[3]);
else
} else {
mask |= 1 << c;
}
}
for (c = 0; mask; ++c, mask >>= 1) {