diff options
| -rw-r--r-- | src/gallium/auxiliary/tgsi/tgsi_ppc.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_ppc.c b/src/gallium/auxiliary/tgsi/tgsi_ppc.c index dbf215c0d5..9bf364b8c4 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_ppc.c +++ b/src/gallium/auxiliary/tgsi/tgsi_ppc.c @@ -1495,6 +1495,68 @@ emit_binop(struct gen_context *gen, struct tgsi_full_instruction *inst) } +/** + * Vector comparisons, resulting in 1.0 or 0.0 values. + */ +static void +emit_inequality(struct gen_context *gen, struct tgsi_full_instruction *inst) +{ + int v0 = ppc_allocate_vec_register(gen->f); + int v1 = ppc_allocate_vec_register(gen->f); + int v2 = ppc_allocate_vec_register(gen->f); + int v_one = ppc_allocate_vec_register(gen->f); + uint chan_index; + boolean complement = FALSE; + + /* v_one = splat(1.0) */ + ppc_vload_float(gen->f, v_one, 1.0f); + + FOR_EACH_DST0_ENABLED_CHANNEL(*inst, chan_index) { + FETCH(gen, *inst, v0, 0, chan_index); /* v0 = srcreg[0] */ + FETCH(gen, *inst, v1, 1, chan_index); /* v1 = srcreg[1] */ + + switch (inst->Instruction.Opcode) { + case TGSI_OPCODE_SNE: + complement = TRUE; + /* fall-through */ + case TGSI_OPCODE_SEQ: + ppc_vcmpeqfpx(gen->f, v2, v0, v1); /* v2 = v0 == v1 ? ~0 : 0 */ + break; + + case TGSI_OPCODE_SGE: + complement = TRUE; + /* fall-through */ + case TGSI_OPCODE_SLT: + ppc_vcmpgtfpx(gen->f, v2, v1, v0); /* v2 = v1 > v0 ? ~0 : 0 */ + break; + + case TGSI_OPCODE_SLE: + complement = TRUE; + /* fall-through */ + case TGSI_OPCODE_SGT: + ppc_vcmpgtfpx(gen->f, v2, v0, v1); /* v2 = v0 > v1 ? ~0 : 0 */ + break; + default: + assert(0); + } + + /* v2 is now {0,0,0,0} or {~0,~0,~0,~0} */ + + if (complement) + ppc_vandc(gen->f, v2, v_one, v2); /* v2 = v_one & ~v2 */ + else + ppc_vand(gen->f, v2, v_one, v2); /* v2 = v_one & v2 */ + + STORE(gen, *inst, v2, 0, chan_index); /* store v2 */ + } + + ppc_release_vec_register(gen->f, v0); + ppc_release_vec_register(gen->f, v1); + ppc_release_vec_register(gen->f, v2); + ppc_release_vec_register(gen->f, v_one); +} + + static void emit_dotprod(struct gen_context *gen, struct tgsi_full_instruction *inst) { @@ -1588,6 +1650,14 @@ emit_instruction(struct gen_context *gen, case TGSI_OPCODE_MAX: emit_binop(gen, inst); break; + case TGSI_OPCODE_SEQ: + case TGSI_OPCODE_SNE: + case TGSI_OPCODE_SLT: + case TGSI_OPCODE_SGT: + case TGSI_OPCODE_SLE: + case TGSI_OPCODE_SGE: + emit_inequality(gen, inst); + break; case TGSI_OPCODE_MAD: case TGSI_OPCODE_LRP: emit_triop(gen, inst); |