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introduce BltMemcpy which is faster than the SSSE3 version #1

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introduce BltMemcpy which is faster than the SSSE3 version #1

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22 changes: 21 additions & 1 deletion SSE Hand Relief Very Nice/Surface.h
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Original file line number Diff line number Diff line change
Expand Up @@ -560,6 +560,26 @@ class Surface
}
}
}
void BltMemcpy(Vei2 dstPt, const RectI& srcRect, const Surface& src)
{
const Color* __restrict ptSrc = src.GetBufferConst();
Color* __restrict ptDst = GetBuffer();

ptSrc += srcRect.top * src.GetWidth() + srcRect.left;
ptDst += dstPt.y * GetWidth() + dstPt.x;

Color* ptDstEnd = ptDst + srcRect.GetHeight() * GetWidth();

const int rowByteSize = srcRect.GetWidth() * sizeof(Color);

while (ptDst < ptDstEnd)
{
::memcpy(ptDst, ptSrc, rowByteSize);

ptDst += GetWidth();
ptSrc += src.GetWidth();
}
}
void BltBlend( Vei2 dstPt,const RectI& srcRect,const Surface& src,unsigned char alpha )
{
const unsigned int mask = 0xFF;
Expand Down Expand Up @@ -2237,4 +2257,4 @@ class TextSurface : public Surface
private:
Gdiplus::Bitmap bitmap;
Gdiplus::Graphics g;
};
};