protected override unsafe void FitSurfaceImpl(SurfaceBase source)
{
float lastRowIndex = height - 1;
float lastColumnIndex = width - 1;
IntPtr srcColCachePtr = IntPtr.Zero;
try
{
srcColCachePtr = ImageSurfaceMemory.Allocate((ulong)width * sizeof(float));
float *srcColCache = (float *)srcColCachePtr;
// Precompute the source column indexes.
for (int x = 0; x < width; x++)
{
float u = x / lastColumnIndex;
srcColCache[x] = (u * source.Width) - 0.5f;
}
for (int y = 0; y < height; y++)
{
ushort *destRow = (ushort *)GetRowAddressUnchecked(y);
float v = y / lastRowIndex;
float srcY = (v * source.Height) - 0.5f;
int yint = (int)srcY;
float yfract = srcY - (float)Math.Floor(srcY);
for (int x = 0; x < width; x++)
{
float srcX = srcColCache[x];
int xint = (int)srcX;
float xfract = srcX - (float)Math.Floor(srcX);
// 1st row
ushort p00 = *(ushort *)source.GetPointAddressClamped(xint - 1, yint - 1);
ushort p10 = *(ushort *)source.GetPointAddressClamped(xint + 0, yint - 1);
ushort p20 = *(ushort *)source.GetPointAddressClamped(xint + 1, yint - 1);
ushort p30 = *(ushort *)source.GetPointAddressClamped(xint + 2, yint - 1);
// 2nd row
ushort p01 = *(ushort *)source.GetPointAddressClamped(xint - 1, yint + 0);
ushort p11 = *(ushort *)source.GetPointAddressClamped(xint + 0, yint + 0);
ushort p21 = *(ushort *)source.GetPointAddressClamped(xint + 1, yint + 0);
ushort p31 = *(ushort *)source.GetPointAddressClamped(xint + 2, yint + 0);
// 3rd row
ushort p02 = *(ushort *)source.GetPointAddressClamped(xint - 1, yint + 1);
ushort p12 = *(ushort *)source.GetPointAddressClamped(xint + 0, yint + 1);
ushort p22 = *(ushort *)source.GetPointAddressClamped(xint + 1, yint + 1);
ushort p32 = *(ushort *)source.GetPointAddressClamped(xint + 2, yint + 1);
// 4th row
ushort p03 = *(ushort *)source.GetPointAddressClamped(xint - 1, yint + 2);
ushort p13 = *(ushort *)source.GetPointAddressClamped(xint + 0, yint + 2);
ushort p23 = *(ushort *)source.GetPointAddressClamped(xint + 1, yint + 2);
ushort p33 = *(ushort *)source.GetPointAddressClamped(xint + 2, yint + 2);
float gray0 = BicubicUtil.CubicHermite(p00, p10, p20, p30, xfract);
float gray1 = BicubicUtil.CubicHermite(p01, p11, p21, p31, xfract);
float gray2 = BicubicUtil.CubicHermite(p02, p12, p22, p32, xfract);
float gray3 = BicubicUtil.CubicHermite(p03, p13, p23, p33, xfract);
float gray = BicubicUtil.CubicHermite(gray0, gray1, gray2, gray3, yfract);
*destRow = (ushort)FloatUtil.Clamp(gray, 0, 32768);
destRow++;
}
}
}
finally
{
if (srcColCachePtr != IntPtr.Zero)
{
ImageSurfaceMemory.Free(srcColCachePtr);
srcColCachePtr = IntPtr.Zero;
}
}
}
protected override unsafe void FitSurfaceImpl(SurfaceBase source)
{
float lastRowIndex = height - 1;
float lastColumnIndex = width - 1;
IntPtr srcColCachePtr = IntPtr.Zero;
try
{
srcColCachePtr = ImageSurfaceMemory.Allocate((ulong)width * sizeof(float));
float *srcColCache = (float *)srcColCachePtr;
// Precompute the source column indexes.
for (int x = 0; x < width; x++)
{
float u = x / lastColumnIndex;
srcColCache[x] = (u * source.Width) - 0.5f;
}
for (int y = 0; y < height; y++)
{
ColorBgr8 *destRow = (ColorBgr8 *)GetRowAddressUnchecked(y);
float v = y / lastRowIndex;
float srcY = (v * source.Height) - 0.5f;
int yint = (int)srcY;
float yfract = srcY - (float)Math.Floor(srcY);
for (int x = 0; x < width; x++)
{
float srcX = srcColCache[x];
int xint = (int)srcX;
float xfract = srcX - (float)Math.Floor(srcX);
// 1st row
ColorBgr8 p00 = *(ColorBgr8 *)source.GetPointAddressClamped(xint - 1, yint - 1);
ColorBgr8 p10 = *(ColorBgr8 *)source.GetPointAddressClamped(xint + 0, yint - 1);
ColorBgr8 p20 = *(ColorBgr8 *)source.GetPointAddressClamped(xint + 1, yint - 1);
ColorBgr8 p30 = *(ColorBgr8 *)source.GetPointAddressClamped(xint + 2, yint - 1);
// 2nd row
ColorBgr8 p01 = *(ColorBgr8 *)source.GetPointAddressClamped(xint - 1, yint + 0);
ColorBgr8 p11 = *(ColorBgr8 *)source.GetPointAddressClamped(xint + 0, yint + 0);
ColorBgr8 p21 = *(ColorBgr8 *)source.GetPointAddressClamped(xint + 1, yint + 0);
ColorBgr8 p31 = *(ColorBgr8 *)source.GetPointAddressClamped(xint + 2, yint + 0);
// 3rd row
ColorBgr8 p02 = *(ColorBgr8 *)source.GetPointAddressClamped(xint - 1, yint + 1);
ColorBgr8 p12 = *(ColorBgr8 *)source.GetPointAddressClamped(xint + 0, yint + 1);
ColorBgr8 p22 = *(ColorBgr8 *)source.GetPointAddressClamped(xint + 1, yint + 1);
ColorBgr8 p32 = *(ColorBgr8 *)source.GetPointAddressClamped(xint + 2, yint + 1);
// 4th row
ColorBgr8 p03 = *(ColorBgr8 *)source.GetPointAddressClamped(xint - 1, yint + 2);
ColorBgr8 p13 = *(ColorBgr8 *)source.GetPointAddressClamped(xint + 0, yint + 2);
ColorBgr8 p23 = *(ColorBgr8 *)source.GetPointAddressClamped(xint + 1, yint + 2);
ColorBgr8 p33 = *(ColorBgr8 *)source.GetPointAddressClamped(xint + 2, yint + 2);
float blue0 = BicubicUtil.CubicHermite(p00.B, p10.B, p20.B, p30.B, xfract);
float blue1 = BicubicUtil.CubicHermite(p01.B, p11.B, p21.B, p31.B, xfract);
float blue2 = BicubicUtil.CubicHermite(p02.B, p12.B, p22.B, p32.B, xfract);
float blue3 = BicubicUtil.CubicHermite(p03.B, p13.B, p23.B, p33.B, xfract);
float blue = BicubicUtil.CubicHermite(blue0, blue1, blue2, blue3, yfract);
float green0 = BicubicUtil.CubicHermite(p00.G, p10.G, p20.G, p30.G, xfract);
float green1 = BicubicUtil.CubicHermite(p01.G, p11.G, p21.G, p31.G, xfract);
float green2 = BicubicUtil.CubicHermite(p02.G, p12.G, p22.G, p32.G, xfract);
float green3 = BicubicUtil.CubicHermite(p03.G, p13.G, p23.G, p33.G, xfract);
float green = BicubicUtil.CubicHermite(green0, green1, green2, green3, yfract);
float red0 = BicubicUtil.CubicHermite(p00.R, p10.R, p20.R, p30.R, xfract);
float red1 = BicubicUtil.CubicHermite(p01.R, p11.R, p21.R, p31.R, xfract);
float red2 = BicubicUtil.CubicHermite(p02.R, p12.R, p22.R, p32.R, xfract);
float red3 = BicubicUtil.CubicHermite(p03.R, p13.R, p23.R, p33.R, xfract);
float red = BicubicUtil.CubicHermite(red0, red1, red2, red3, yfract);
destRow->B = (byte)FloatUtil.Clamp(blue, 0, 255);
destRow->G = (byte)FloatUtil.Clamp(green, 0, 255);
destRow->R = (byte)FloatUtil.Clamp(red, 0, 255);
destRow++;
}
}
}
finally
{
if (srcColCachePtr != IntPtr.Zero)
{
ImageSurfaceMemory.Free(srcColCachePtr);
srcColCachePtr = IntPtr.Zero;
}
}
}
protected override unsafe void FitSurfaceImpl(SurfaceBase source)
{
float lastRowIndex = height - 1;
float lastColumnIndex = width - 1;
IntPtr srcColCachePtr = IntPtr.Zero;
try
{
srcColCachePtr = ImageSurfaceMemory.Allocate((ulong)width * sizeof(float));
float *srcColCache = (float *)srcColCachePtr;
// Precompute the source column indexes.
for (int x = 0; x < width; x++)
{
float u = x / lastColumnIndex;
srcColCache[x] = (u * source.Width) - 0.5f;
}
for (int y = 0; y < height; y++)
{
ColorCmyk8 *destRow = (ColorCmyk8 *)GetRowAddressUnchecked(y);
float v = y / lastRowIndex;
float srcY = (v * source.Height) - 0.5f;
int yint = (int)srcY;
float yfract = srcY - (float)Math.Floor(srcY);
for (int x = 0; x < width; x++)
{
float srcX = srcColCache[x];
int xint = (int)srcX;
float xfract = srcX - (float)Math.Floor(srcX);
// 1st row
ColorCmyk8 p00 = *(ColorCmyk8 *)source.GetPointAddressClamped(xint - 1, yint - 1);
ColorCmyk8 p10 = *(ColorCmyk8 *)source.GetPointAddressClamped(xint + 0, yint - 1);
ColorCmyk8 p20 = *(ColorCmyk8 *)source.GetPointAddressClamped(xint + 1, yint - 1);
ColorCmyk8 p30 = *(ColorCmyk8 *)source.GetPointAddressClamped(xint + 2, yint - 1);
// 2nd row
ColorCmyk8 p01 = *(ColorCmyk8 *)source.GetPointAddressClamped(xint - 1, yint + 0);
ColorCmyk8 p11 = *(ColorCmyk8 *)source.GetPointAddressClamped(xint + 0, yint + 0);
ColorCmyk8 p21 = *(ColorCmyk8 *)source.GetPointAddressClamped(xint + 1, yint + 0);
ColorCmyk8 p31 = *(ColorCmyk8 *)source.GetPointAddressClamped(xint + 2, yint + 0);
// 3rd row
ColorCmyk8 p02 = *(ColorCmyk8 *)source.GetPointAddressClamped(xint - 1, yint + 1);
ColorCmyk8 p12 = *(ColorCmyk8 *)source.GetPointAddressClamped(xint + 0, yint + 1);
ColorCmyk8 p22 = *(ColorCmyk8 *)source.GetPointAddressClamped(xint + 1, yint + 1);
ColorCmyk8 p32 = *(ColorCmyk8 *)source.GetPointAddressClamped(xint + 2, yint + 1);
// 4th row
ColorCmyk8 p03 = *(ColorCmyk8 *)source.GetPointAddressClamped(xint - 1, yint + 2);
ColorCmyk8 p13 = *(ColorCmyk8 *)source.GetPointAddressClamped(xint + 0, yint + 2);
ColorCmyk8 p23 = *(ColorCmyk8 *)source.GetPointAddressClamped(xint + 1, yint + 2);
ColorCmyk8 p33 = *(ColorCmyk8 *)source.GetPointAddressClamped(xint + 2, yint + 2);
float cyan0 = BicubicUtil.CubicHermite(p00.C, p10.C, p20.C, p30.C, xfract);
float cyan1 = BicubicUtil.CubicHermite(p01.C, p11.C, p21.C, p31.C, xfract);
float cyan2 = BicubicUtil.CubicHermite(p02.C, p12.C, p22.C, p32.C, xfract);
float cyan3 = BicubicUtil.CubicHermite(p03.C, p13.C, p23.C, p33.C, xfract);
float cyan = BicubicUtil.CubicHermite(cyan0, cyan1, cyan2, cyan3, yfract);
float magenta0 = BicubicUtil.CubicHermite(p00.M, p10.M, p20.M, p30.M, xfract);
float magenta1 = BicubicUtil.CubicHermite(p01.M, p11.M, p21.M, p31.M, xfract);
float magenta2 = BicubicUtil.CubicHermite(p02.M, p12.M, p22.M, p32.M, xfract);
float magenta3 = BicubicUtil.CubicHermite(p03.M, p13.M, p23.M, p33.M, xfract);
float magenta = BicubicUtil.CubicHermite(magenta0, magenta1, magenta2, magenta3, yfract);
float yellow0 = BicubicUtil.CubicHermite(p00.Y, p10.Y, p20.Y, p30.Y, xfract);
float yellow1 = BicubicUtil.CubicHermite(p01.Y, p11.Y, p21.Y, p31.Y, xfract);
float yellow2 = BicubicUtil.CubicHermite(p02.Y, p12.Y, p22.Y, p32.Y, xfract);
float yellow3 = BicubicUtil.CubicHermite(p03.Y, p13.Y, p23.Y, p33.Y, xfract);
float yellow = BicubicUtil.CubicHermite(yellow0, yellow1, yellow2, yellow3, yfract);
float black0 = BicubicUtil.CubicHermite(p00.K, p10.K, p20.K, p30.K, xfract);
float black1 = BicubicUtil.CubicHermite(p01.K, p11.K, p21.K, p31.K, xfract);
float black2 = BicubicUtil.CubicHermite(p02.K, p12.K, p22.K, p32.K, xfract);
float black3 = BicubicUtil.CubicHermite(p03.K, p13.K, p23.K, p33.K, xfract);
float black = BicubicUtil.CubicHermite(black0, black1, black2, black3, yfract);
destRow->C = (byte)FloatUtil.Clamp(cyan, 0, 255);
destRow->M = (byte)FloatUtil.Clamp(magenta, 0, 255);
destRow->Y = (byte)FloatUtil.Clamp(yellow, 0, 255);
destRow->K = (byte)FloatUtil.Clamp(black, 0, 255);
destRow++;
}
}
}
finally
{
if (srcColCachePtr != IntPtr.Zero)
{
ImageSurfaceMemory.Free(srcColCachePtr);
srcColCachePtr = IntPtr.Zero;
}
}
}
