diff options
Diffstat (limited to 'src/gallium')
| -rw-r--r-- | src/gallium/drivers/nv50/nv50_program.c | 75 |
1 files changed, 74 insertions, 1 deletions
diff --git a/src/gallium/drivers/nv50/nv50_program.c b/src/gallium/drivers/nv50/nv50_program.c index c73ed08a55..85e5432208 100644 --- a/src/gallium/drivers/nv50/nv50_program.c +++ b/src/gallium/drivers/nv50/nv50_program.c @@ -111,6 +111,8 @@ struct nv50_pc { struct nv50_reg *temp_temp[16]; unsigned temp_temp_nr; + unsigned interp_mode[32]; + /* current instruction and total number of insns */ unsigned insn_cur; unsigned insn_nr; @@ -366,6 +368,12 @@ set_immd(struct nv50_pc *pc, struct nv50_reg *imm, struct nv50_program_exec *e) e->inst[1] |= (val >> 6) << 2; } + +#define INTERP_LINEAR 0 +#define INTERP_FLAT 1 +#define INTERP_PERSPECTIVE 2 +#define INTERP_CENTROID 4 + static void emit_interp(struct nv50_pc *pc, struct nv50_reg *dst, struct nv50_reg *src, struct nv50_reg *iv) @@ -1441,12 +1449,19 @@ nv50_program_tx_prep(struct nv50_pc *pc) struct tgsi_parse_context p; boolean ret = FALSE; unsigned i, c; + unsigned fcol, bcol, fcrd, depr; + + /* count (centroid) perspective interpolations */ + unsigned centroid_loads = 0; + unsigned perspect_loads = 0; /* track register access for temps and attrs */ unsigned *r_usage[2]; r_usage[0] = NULL; r_usage[1] = NULL; + depr = fcol = bcol = fcrd = 0xffff; + tgsi_parse_init(&p, pc->p->pipe.tokens); while (!tgsi_parse_end_of_tokens(&p)) { const union tgsi_full_token *tok = &p.FullToken; @@ -1467,9 +1482,10 @@ nv50_program_tx_prep(struct nv50_pc *pc) case TGSI_TOKEN_TYPE_DECLARATION: { const struct tgsi_full_declaration *d; - unsigned last; + unsigned last, first, mode; d = &p.FullToken.FullDeclaration; + first = d->DeclarationRange.First; last = d->DeclarationRange.Last; switch (d->Declaration.File) { @@ -1480,10 +1496,67 @@ nv50_program_tx_prep(struct nv50_pc *pc) case TGSI_FILE_OUTPUT: if (pc->result_nr < (last + 1)) pc->result_nr = last + 1; + + if (!d->Declaration.Semantic) + break; + + switch (d->Semantic.SemanticName) { + case TGSI_SEMANTIC_POSITION: + depr = first; + break; + default: + break; + } + break; case TGSI_FILE_INPUT: + { if (pc->attr_nr < (last + 1)) pc->attr_nr = last + 1; + + if (pc->p->type != PIPE_SHADER_FRAGMENT) + break; + + switch (d->Declaration.Interpolate) { + case TGSI_INTERPOLATE_CONSTANT: + mode = INTERP_FLAT; + break; + case TGSI_INTERPOLATE_PERSPECTIVE: + mode = INTERP_PERSPECTIVE; + break; + default: + mode = INTERP_LINEAR; + break; + } + + if (d->Declaration.Semantic) { + switch (d->Semantic.SemanticName) { + case TGSI_SEMANTIC_POSITION: + fcrd = first; + break; + case TGSI_SEMANTIC_COLOR: + fcol = first; + mode = INTERP_PERSPECTIVE; + break; + case TGSI_SEMANTIC_BCOLOR: + bcol = first; + mode = INTERP_PERSPECTIVE; + break; + } + } + + if (d->Declaration.Centroid) { + mode |= INTERP_CENTROID; + if (mode & INTERP_PERSPECTIVE) + centroid_loads++; + } else + if (mode & INTERP_PERSPECTIVE) + perspect_loads++; + + assert(last < 32); + for (i = first; i <= last; i++) + pc->interp_mode[i] = mode; + } break; case TGSI_FILE_CONSTANT: if (pc->param_nr < (last + 1)) |