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cell: Added DPH instruction and verified against softpipe.

This commit is contained in:
Jonathan White 2008-09-22 10:54:50 -06:00
parent bb60fb77c7
commit 56c476395f
1 changed files with 41 additions and 0 deletions
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41
src/gallium/drivers/cell/ppu/cell_gen_fp.c
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@ -633,6 +633,45 @@ emit_DP4(struct codegen *gen, const struct tgsi_full_instruction *inst)
return true;
}
/**
* Emit homogeneous dot product. See emit_ADD for comments.
*/
static boolean
emit_DPH(struct codegen *gen, const struct tgsi_full_instruction *inst)
{
int ch;
spe_comment(gen->f, -4, "DPH:");
int s1_reg = get_src_reg(gen, CHAN_X, &inst->FullSrcRegisters[0]);
int s2_reg = get_src_reg(gen, CHAN_X, &inst->FullSrcRegisters[1]);
int d_reg = get_dst_reg(gen, CHAN_X, &inst->FullDstRegisters[0]);
/* d = x * x */
spe_fm(gen->f, d_reg, s1_reg, s2_reg);
s1_reg = get_src_reg(gen, CHAN_Y, &inst->FullSrcRegisters[0]);
s2_reg = get_src_reg(gen, CHAN_Y, &inst->FullSrcRegisters[1]);
/* d = y * y + d */
spe_fma(gen->f, d_reg, s1_reg, s2_reg, d_reg);
s1_reg = get_src_reg(gen, CHAN_Z, &inst->FullSrcRegisters[0]);
s2_reg = get_src_reg(gen, CHAN_Z, &inst->FullSrcRegisters[1]);
/* d = z * z + d */
spe_fma(gen->f, d_reg, s1_reg, s2_reg, d_reg);
s2_reg = get_src_reg(gen, CHAN_W, &inst->FullSrcRegisters[1]);
/* d = w + d */
spe_fa(gen->f, d_reg, s2_reg, d_reg);
for (ch = 0; ch < 4; ch++) {
if (inst->FullDstRegisters[0].DstRegister.WriteMask & (1 << ch)) {
store_dest_reg(gen, d_reg, ch, &inst->FullDstRegisters[0]);
}
}
free_itemps(gen);
return true;
}
/**
* Emit set-if-greater-than.
* Note that the SPE fcgt instruction produces 0x0 and 0xffffffff as
@ -1124,6 +1163,8 @@ emit_instruction(struct codegen *gen,
return emit_DP3(gen, inst);
case TGSI_OPCODE_DP4:
return emit_DP4(gen, inst);
case TGSI_OPCODE_DPH:
return emit_DPH(gen, inst);
case TGSI_OPCODE_RCP:
return emit_RCP(gen, inst);
case TGSI_OPCODE_RSQ: