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PACK D3DCOLOR.

This commit is contained in:
Ben Vanik 2014-05-27 16:23:46 -07:00
parent edf282abdc
commit 192941eeb0
3 changed files with 33 additions and 9 deletions
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8
src/alloy/backend/x64/x64_emitter.cc
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@ -431,8 +431,8 @@ Address X64Emitter::GetXmmConstPtr(XmmConst id) {
/* XMMZero */ vec128f(0.0f, 0.0f, 0.0f, 0.0f),
/* XMMOne */ vec128f(1.0f, 1.0f, 1.0f, 1.0f),
/* XMMNegativeOne */ vec128f(-1.0f, -1.0f, -1.0f, -1.0f),
/* XMMMaskX16Y16 */ vec128i(0x0000FFFF, 0xFFFF0000, 0x00000000, 0x00000000),
/* XMMFlipX16Y16 */ vec128i(0x00008000, 0x00000000, 0x00000000, 0x00000000),
/* XMMMaskX16Y16 */ vec128i(0x0000FFFFu, 0xFFFF0000u, 0x00000000u, 0x00000000u),
/* XMMFlipX16Y16 */ vec128i(0x00008000u, 0x00000000u, 0x00000000u, 0x00000000u),
/* XMMFixX16Y16 */ vec128f(-32768.0f, 0.0f, 0.0f, 0.0f),
/* XMMNormalizeX16Y16 */ vec128f(1.0f / 32767.0f, 1.0f / (32767.0f * 65536.0f), 0.0f, 0.0f),
/* XMM3301 */ vec128f(3.0f, 3.0f, 0.0f, 1.0f),
@ -440,11 +440,13 @@ Address X64Emitter::GetXmmConstPtr(XmmConst id) {
/* XMMSignMaskPD */ vec128i(0x00000000u, 0x80000000u, 0x00000000u, 0x80000000u),
/* XMMByteSwapMask */ vec128i(0x00010203u, 0x04050607u, 0x08090A0Bu, 0x0C0D0E0Fu),
/* XMMPermuteControl15 */ vec128b(15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15),
/* XMMUnpackD3DCOLOR */ vec128i(0xFFFFFF02, 0xFFFFFF01, 0xFFFFFF00, 0xFFFFFF02),
/* XMMPackD3DCOLOR */ vec128i(0xFFFFFFFFu, 0xFFFFFFFFu, 0xFFFFFFFFu, 0x0C000408u),
/* XMMUnpackD3DCOLOR */ vec128i(0xFFFFFF02u, 0xFFFFFF01u, 0xFFFFFF00u, 0xFFFFFF03u),
/* XMMOneOver255 */ vec128f(1.0f / 255.0f, 1.0f / 255.0f, 1.0f / 255.0f, 1.0f / 255.0f),
/* XMMShiftMaskPS */ vec128i(0x0000001Fu, 0x0000001Fu, 0x0000001Fu, 0x0000001Fu),
/* XMMShiftByteMask */ vec128i(0x000000FFu, 0x000000FFu, 0x000000FFu, 0x000000FFu),
/* XMMUnsignedDwordMax */ vec128i(0xFFFFFFFFu, 0x00000000u, 0xFFFFFFFFu, 0x00000000u),
/* XMM255 */ vec128f(255.0f, 255.0f, 255.0f, 255.0f),
};
// TODO(benvanik): cache base pointer somewhere? stack? It'd be nice to
// prevent this move.

12
src/alloy/backend/x64/x64_emitter.h
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@ -48,11 +48,13 @@ enum XmmConst {
XMMSignMaskPD = 9,
XMMByteSwapMask = 10,
XMMPermuteControl15 = 11,
XMMUnpackD3DCOLOR = 12,
XMMOneOver255 = 13,
XMMShiftMaskPS = 14,
XMMShiftByteMask = 15,
XMMUnsignedDwordMax = 16,
XMMPackD3DCOLOR = 12,
XMMUnpackD3DCOLOR = 13,
XMMOneOver255 = 14,
XMMShiftMaskPS = 15,
XMMShiftByteMask = 16,
XMMUnsignedDwordMax = 17,
XMM255 = 18,
};
// Unfortunately due to the design of xbyak we have to pass this to the ctor.

22
src/alloy/backend/x64/x64_sequences.cc
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@ -4582,7 +4582,27 @@ EMITTER(PACK, MATCH(I<OPCODE_PACK, V128<>, V128<>>)) {
}
}
static void EmitD3DCOLOR(X64Emitter& e, const EmitArgType& i) {
XEASSERTALWAYS();
// RGBA (XYZW) -> ARGB (WXYZ)
// float r = roundf(((src1.x < 0) ? 0 : ((1 < src1.x) ? 1 : src1.x)) * 255);
// float g = roundf(((src1.y < 0) ? 0 : ((1 < src1.y) ? 1 : src1.y)) * 255);
// float b = roundf(((src1.z < 0) ? 0 : ((1 < src1.z) ? 1 : src1.z)) * 255);
// float a = roundf(((src1.w < 0) ? 0 : ((1 < src1.w) ? 1 : src1.w)) * 255);
// dest.iw = ((uint32_t)a << 24) |
// ((uint32_t)r << 16) |
// ((uint32_t)g << 8) |
// ((uint32_t)b);
// f2i(clamp(src, 0, 1) * 255)
e.vpxor(e.xmm0, e.xmm0);
if (i.src1.is_constant) {
e.LoadConstantXmm(e.xmm1, i.src1.constant());
e.vmaxps(e.xmm0, e.xmm1);
} else {
e.vmaxps(e.xmm0, i.src1);
}
e.vminps(e.xmm0, e.GetXmmConstPtr(XMMOne));
e.vmulps(e.xmm0, e.GetXmmConstPtr(XMM255));
e.vcvttps2dq(e.xmm0, e.xmm0);
e.vpshufb(i.dest, e.xmm0, e.GetXmmConstPtr(XMMPackD3DCOLOR));
}
static void EmitFLOAT16_2(X64Emitter& e, const EmitArgType& i) {
XEASSERTALWAYS();