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gsdx sw x64: restore read texel optimization

This commit is contained in:
Gregory Hainaut 2016-11-19 00:09:48 +01:00
parent e728a14c19
commit 2e20693583
1 changed files with 48 additions and 44 deletions
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92
plugins/GSdx/GSDrawScanlineCodeGenerator.x64.avx.cpp
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@ -856,81 +856,85 @@ void GSDrawScanlineCodeGenerator::SampleTexture()
ReadTexel(4, 0);
// xmm0 = c00
// xmm1 = c01
// xmm2 = c10
// xmm3 = c11
// xmm0 = c10
// xmm1 = c11
// xmm4 = c00
// xmm5 = c01
// xmm6 = uf
// xmm7 = vf
// GSVector4i rb00 = c00 & mask;
// GSVector4i ga00 = (c00 >> 8) & mask;
split16_2x8(xmm4, xmm5, xmm0);
split16_2x8(xmm2, xmm3, xmm4);
// GSVector4i rb01 = c01 & mask;
// GSVector4i ga01 = (c01 >> 8) & mask;
split16_2x8(xmm0, xmm1, xmm1);
split16_2x8(xmm4, xmm5, xmm5);
// xmm0 = rb01
// xmm1 = ga01
// xmm2 = c10
// xmm3 = c11
// xmm4 = rb00
// xmm5 = ga00
// xmm0 = c10
// xmm1 = c11
// xmm2 = rb00
// xmm3 = ga00
// xmm4 = rb01
// xmm5 = ga01
// xmm6 = uf
// xmm7 = vf
// rb00 = rb00.lerp16_4(rb01, uf);
// ga00 = ga00.lerp16_4(ga01, uf);
lerp16_4(xmm0, xmm4, xmm6);
lerp16_4(xmm1, xmm5, xmm6);
lerp16_4(xmm4, xmm2, xmm6);
lerp16_4(xmm5, xmm3, xmm6);
// xmm0 = rb00
// xmm1 = ga00
// xmm2 = c10
// xmm3 = c11
// xmm0 = c10
// xmm1 = c11
// xmm4 = rb00
// xmm5 = ga00
// xmm6 = uf
// xmm7 = vf
// GSVector4i rb10 = c10 & mask;
// GSVector4i ga10 = (c10 >> 8) & mask;
split16_2x8(xmm4, xmm5, xmm2);
split16_2x8(xmm2, xmm3, xmm0);
// GSVector4i rb11 = c11 & mask;
// GSVector4i ga11 = (c11 >> 8) & mask;
split16_2x8(xmm2, xmm3, xmm3);
split16_2x8(xmm0, xmm1, xmm1);
// xmm0 = rb00
// xmm1 = ga00
// xmm2 = rb11
// xmm3 = ga11
// xmm4 = rb10
// xmm5 = ga10
// xmm0 = rb11
// xmm1 = ga11
// xmm2 = rb10
// xmm3 = ga10
// xmm4 = rb00
// xmm5 = ga00
// xmm6 = uf
// xmm7 = vf
// rb10 = rb10.lerp16_4(rb11, uf);
// ga10 = ga10.lerp16_4(ga11, uf);
lerp16_4(xmm2, xmm4, xmm6);
lerp16_4(xmm3, xmm5, xmm6);
lerp16_4(xmm0, xmm2, xmm6);
lerp16_4(xmm1, xmm3, xmm6);
// xmm0 = rb00
// xmm1 = ga00
// xmm2 = rb10
// xmm3 = ga10
// xmm0 = rb10
// xmm1 = ga10
// xmm4 = rb00
// xmm5 = ga00
// xmm7 = vf
// rb00 = rb00.lerp16_4(rb10, vf);
// ga00 = ga00.lerp16_4(ga10, vf);
lerp16_4(xmm2, xmm0, xmm7);
lerp16_4(xmm3, xmm1, xmm7);
lerp16_4(xmm0, xmm4, xmm7);
lerp16_4(xmm1, xmm5, xmm7);
// FIXME not ideal (but allow different source in ReadTexel and less register dependency)
vmovdqa(xmm2, xmm0);
vmovdqa(xmm3, xmm1);
}
else
{
@ -947,7 +951,7 @@ void GSDrawScanlineCodeGenerator::SampleTexture()
// c[0] = c00 & mask;
// c[1] = (c00 >> 8) & mask;
split16_2x8(_rb, _ga, xmm0);
split16_2x8(_rb, _ga, xmm4);
}
// xmm2 = rb
@ -1988,14 +1992,14 @@ void GSDrawScanlineCodeGenerator::WritePixel(const Xmm& src, const Reg64& addr,
void GSDrawScanlineCodeGenerator::ReadTexel(int pixels, int mip_offset)
{
// TODO
const int r[] = {0, 0, 1, 1, 2, 2, 3, 3};
const int in[] = {0, 1, 2, 3};
const int out[] = {4, 5, 0, 1};
for(int i = 0; i < pixels; i++)
{
for(int j = 0; j < 4; j++)
{
ReadTexel(Xmm(r[i * 2 + 1]), Xmm(r[i * 2 + 0]), j);
ReadTexel(Xmm(out[i]), Xmm(in[i]), j);
}
}
}
@ -2004,15 +2008,15 @@ void GSDrawScanlineCodeGenerator::ReadTexel(const Xmm& dst, const Xmm& addr, uin
{
const Address& src = m_sel.tlu ? ptr[_m_local__gd__clut + rax * 4] : ptr[_m_local__gd__tex + rax * 4];
//if(i == 0) vmovd(eax, addr);
//else vpextrd(eax, addr, i);
vpextrd(eax, addr, i);
// Extract address offset
if(i == 0) vmovd(eax, addr);
else vpextrd(eax, addr, i);
// If clut, load the value as a byte index
if(m_sel.tlu) movzx(eax, byte[_m_local__gd__tex + rax]);
//if(i == 0) vmovd(dst, src);
//else vpinsrd(dst, src, i);
vpinsrd(dst, src, i);
if(i == 0) vmovd(dst, src);
else vpinsrd(dst, src, i);
}
#endif