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- step with SSE

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Magnus Norddahl 2018-11-26 14:32:56 +01:00
parent 2db433e68f
commit dbb7df998d
1 changed files with 75 additions and 0 deletions
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75
src/polyrenderer/drawers/screen_triangle.cpp
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@ -488,6 +488,80 @@ void DrawSpanOpt32(int y, int x0, int x1, const TriDrawTriangleArgs *args, PolyT
} }
} }
#ifndef NO_SSE
__m128 mposW, mposU, mposV, mstepW, mstepU, mstepV;
__m128 mposWorldX, mposWorldY, mposWorldZ, mstepWorldX, mstepWorldY, mstepWorldZ;
__m128i mtexMul1, mtexMul2;
#define SETUP_STEP_SSE(mpos,mstep,pos,step) \
mstep = _mm_load_ss(&step); \
mpos = _mm_load_ss(&pos); \
mpos = _mm_shuffle_ps(mpos, mpos, _MM_SHUFFLE(2, 1, 0, 0)); \
mpos = _mm_add_ss(mpos, mstep); \
mpos = _mm_shuffle_ps(mpos, mpos, _MM_SHUFFLE(2, 1, 0, 0)); \
mpos = _mm_add_ss(mpos, mstep); \
mpos = _mm_shuffle_ps(mpos, mpos, _MM_SHUFFLE(2, 1, 0, 0)); \
mpos = _mm_add_ss(mpos, mstep); \
mpos = _mm_shuffle_ps(mpos, mpos, _MM_SHUFFLE(0, 1, 2, 3)); \
mstep = _mm_mul_ss(mstep, _mm_set1_ps(4.0f)); \
mstep = _mm_shuffle_ps(mstep, mstep, _MM_SHUFFLE(0, 0, 0, 0));
SETUP_STEP_SSE(mposW, mstepW, posW, stepW);
if (OptT::Flags & SWOPT_DynLights)
{
SETUP_STEP_SSE(mposWorldX, mstepWorldX, posWorldX, stepWorldX);
SETUP_STEP_SSE(mposWorldY, mstepWorldY, posWorldY, stepWorldY);
SETUP_STEP_SSE(mposWorldZ, mstepWorldZ, posWorldZ, stepWorldZ);
}
if (!(ModeT::SWFlags & SWSTYLEF_Fill) && !(ModeT::SWFlags & SWSTYLEF_FogBoundary))
{
SETUP_STEP_SSE(mposU, mstepU, posU, stepU);
SETUP_STEP_SSE(mposV, mstepV, posV, stepV);
mtexMul1 = _mm_setr_epi16(texWidth, texWidth, texWidth, texWidth, texHeight, texHeight, texHeight, texHeight);
mtexMul2 = _mm_setr_epi16(texHeight, texHeight, texHeight, texHeight, 1, 1, 1, 1);
}
#undef SETUP_STEP_SSE
for (int x = x0; x < x1; x += 4)
{
__m128 rcp_posW = _mm_rcp_ps(mposW);
if (OptT::Flags & SWOPT_DynLights)
{
_mm_storeu_ps(&worldposX[x], _mm_mul_ps(mposWorldX, rcp_posW));
_mm_storeu_ps(&worldposY[x], _mm_mul_ps(mposWorldY, rcp_posW));
_mm_storeu_ps(&worldposZ[x], _mm_mul_ps(mposWorldZ, rcp_posW));
mposWorldX = _mm_add_ps(mposWorldX, mstepWorldX);
mposWorldY = _mm_add_ps(mposWorldY, mstepWorldY);
mposWorldZ = _mm_add_ps(mposWorldZ, mstepWorldZ);
}
if (!(ModeT::SWFlags & SWSTYLEF_Fill) && !(ModeT::SWFlags & SWSTYLEF_FogBoundary))
{
__m128 rcpW = _mm_mul_ps(_mm_set1_ps(0x01000000), rcp_posW);
__m128i u = _mm_cvtps_epi32(_mm_mul_ps(mposU, rcpW));
__m128i v = _mm_cvtps_epi32(_mm_mul_ps(mposV, rcpW));
_mm_storeu_si128((__m128i*)&texelV[x], v);
__m128i texelX = _mm_srli_epi32(_mm_slli_epi32(u, 8), 17);
__m128i texelY = _mm_srli_epi32(_mm_slli_epi32(v, 8), 17);
__m128i texelXY = _mm_mulhi_epu16(_mm_slli_epi16(_mm_packs_epi32(texelX, texelY), 1), mtexMul1);
__m128i texlo = _mm_mullo_epi16(texelXY, mtexMul2);
__m128i texhi = _mm_mulhi_epi16(texelXY, mtexMul2);
texelX = _mm_unpacklo_epi16(texlo, texhi);
texelY = _mm_unpackhi_epi16(texlo, texhi);
_mm_storeu_si128((__m128i*)&texel[x], _mm_add_epi32(texelX, texelY));
mposU = _mm_add_ps(mposU, mstepU);
mposV = _mm_add_ps(mposV, mstepV);
}
mposW = _mm_add_ps(mposW, mstepW);
}
#else
for (int x = x0; x < x1; x++) for (int x = x0; x < x1; x++)
{ {
if (OptT::Flags & SWOPT_DynLights) if (OptT::Flags & SWOPT_DynLights)
@ -515,6 +589,7 @@ void DrawSpanOpt32(int y, int x0, int x1, const TriDrawTriangleArgs *args, PolyT
posW += stepW; posW += stepW;
} }
#endif
if (OptT::Flags & SWOPT_DynLights) if (OptT::Flags & SWOPT_DynLights)
{ {