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PPC: Support v[u]pkd3d128 VPACK_NORMSHORT4

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This commit is contained in:
Dr. Chat
2017-05-12 17:55:52 -05:00
parent 82efbd7bc5
commit d3ed53c43e
7 changed files with 80 additions and 34 deletions
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72
src/xenia/cpu/backend/x64/x64_sequences.cc
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@@ -6881,6 +6881,9 @@ struct PACK : Sequence<PACK, I<OPCODE_PACK, V128Op, V128Op, V128Op>> {
case PACK_TYPE_SHORT_2:
EmitSHORT_2(e, i);
break;
case PACK_TYPE_SHORT_4:
EmitSHORT_4(e, i);
break;
case PACK_TYPE_UINT_2101010:
EmitUINT_2101010(e, i);
break;
@@ -6970,11 +6973,19 @@ struct PACK : Sequence<PACK, I<OPCODE_PACK, V128Op, V128Op, V128Op>> {
static void EmitSHORT_2(X64Emitter& e, const EmitArgType& i) {
assert_true(i.src2.value->IsConstantZero());
// Saturate.
e.vmaxps(i.dest, i.src1, e.GetXmmConstPtr(XMMPackSHORT_2Min));
e.vminps(i.dest, i.dest, e.GetXmmConstPtr(XMMPackSHORT_2Max));
e.vmaxps(i.dest, i.src1, e.GetXmmConstPtr(XMMPackSHORT_Min));
e.vminps(i.dest, i.dest, e.GetXmmConstPtr(XMMPackSHORT_Max));
// Pack.
e.vpshufb(i.dest, i.dest, e.GetXmmConstPtr(XMMPackSHORT_2));
}
static void EmitSHORT_4(X64Emitter& e, const EmitArgType& i) {
assert_true(i.src2.value->IsConstantZero());
// Saturate.
e.vmaxps(i.dest, i.src1, e.GetXmmConstPtr(XMMPackSHORT_Min));
e.vminps(i.dest, i.dest, e.GetXmmConstPtr(XMMPackSHORT_Max));
// Pack.
e.vpshufb(i.dest, i.dest, e.GetXmmConstPtr(XMMPackSHORT_4));
}
static __m128i EmulatePackUINT_2101010(void*, __m128i src1) {
// https://www.opengl.org/registry/specs/ARB/vertex_type_2_10_10_10_rev.txt
union {
@@ -7229,15 +7240,15 @@ struct UNPACK : Sequence<UNPACK, I<OPCODE_UNPACK, V128Op, V128Op>> {
case PACK_TYPE_FLOAT16_2:
EmitFLOAT16_2(e, i);
break;
case PACK_TYPE_FLOAT16_3:
EmitFLOAT16_3(e, i);
break;
case PACK_TYPE_FLOAT16_4:
EmitFLOAT16_4(e, i);
break;
case PACK_TYPE_SHORT_2:
EmitSHORT_2(e, i);
break;
case PACK_TYPE_SHORT_4:
EmitSHORT_4(e, i);
break;
case PACK_TYPE_UINT_2101010:
EmitUINT_2101010(e, i);
break;
@@ -7323,27 +7334,6 @@ struct UNPACK : Sequence<UNPACK, I<OPCODE_UNPACK, V128Op, V128Op>> {
e.vmovaps(i.dest, e.xmm0);
}
}
// FIXME: This has not been verified on a real 360, but from context the
// return values are used in floating point math.
static __m128 EmulateFLOAT16_3(void*, __m128i src1) {
alignas(16) uint16_t a[8];
alignas(16) float b[4];
_mm_store_si128(reinterpret_cast<__m128i*>(a), src1);
for (int i = 0; i < 3; i++) {
b[i] = half_float::detail::half2float(a[VEC128_W(5 + i)]);
}
// FIXME: Correct?
b[3] = 1.0f;
return _mm_load_ps(b);
}
static void EmitFLOAT16_3(X64Emitter& e, const EmitArgType& i) {
e.lea(e.r8, e.StashXmm(0, i.src1));
e.CallNativeSafe(reinterpret_cast<void*>(EmulateFLOAT16_3));
e.vmovaps(i.dest, e.xmm0);
}
static __m128 EmulateFLOAT16_4(void*, __m128i src1) {
alignas(16) uint16_t a[8];
alignas(16) float b[4];
@@ -7398,6 +7388,36 @@ struct UNPACK : Sequence<UNPACK, I<OPCODE_UNPACK, V128Op, V128Op>> {
// Add 3,3,0,1.
e.vpaddd(i.dest, e.GetXmmConstPtr(XMM3301));
}
static void EmitSHORT_4(X64Emitter& e, const EmitArgType& i) {
// (VD.x) = 3.0 + (VB.x>>16)*2^-22
// (VD.y) = 3.0 + (VB.x)*2^-22
// (VD.z) = 3.0 + (VB.y>>16)*2^-22
// (VD.w) = 3.0 + (VB.y)*2^-22
// XMLoadShortN4 plus 3,3,3,3 (for some reason)
// src is (xx,xx,VALUE,VALUE)
// (VALUE,VALUE,VALUE,VALUE)
Xmm src;
if (i.src1.is_constant) {
if (i.src1.value->IsConstantZero()) {
e.vmovdqa(i.dest, e.GetXmmConstPtr(XMM3333));
return;
} else {
// TODO(benvanik): check other common constants/perform shuffle/or here.
src = e.xmm0;
e.LoadConstantXmm(src, i.src1.constant());
}
} else {
src = i.src1;
}
// Shuffle bytes.
e.vpshufb(i.dest, src, e.GetXmmConstPtr(XMMUnpackSHORT_4));
// Sign extend words.
e.vpslld(i.dest, 16);
e.vpsrad(i.dest, 16);
// Add 3,3,3,3.
e.vpaddd(i.dest, e.GetXmmConstPtr(XMM3333));
}
static void EmitUINT_2101010(X64Emitter& e, const EmitArgType& i) {
assert_always("not implemented");
}