public static MemBitmap CopyImgBuffer(this MemBitmap src, int srcX, int srcY, int srcW, int srcH)
{
//simple copy
Rectangle orgSourceRect = new Rectangle(0, 0, src.Width, src.Height);
Rectangle requestRect = new Rectangle(srcX, srcY, srcW, srcH);
Rectangle toCopyRect = Rectangle.Intersect(new Rectangle(0, 0, src.Width, src.Height),
new Rectangle(srcX, srcY, srcW, srcH));
if (toCopyRect.Width == 0 || toCopyRect.Height == 0)
{
return(null);
}
//-----
MemBitmap copyBmp = new MemBitmap(toCopyRect.Width, toCopyRect.Height);
unsafe
{
using (CpuBlit.Imaging.TempMemPtr srcBufferPtr = MemBitmap.GetBufferPtr(src))
using (CpuBlit.Imaging.TempMemPtr dstBufferPtr = MemBitmap.GetBufferPtr(copyBmp))
{
int *srcPtr = (int *)srcBufferPtr.Ptr;
int *dstPtr = (int *)dstBufferPtr.Ptr;
int lineEnd = srcY + srcH;
int orgSrcW = src.Width;
for (int line = toCopyRect.Top; line < toCopyRect.Bottom; ++line)
{
NativeMemMx.memcpy((byte *)dstPtr, (byte *)(srcPtr + ((line * orgSrcW) + toCopyRect.Left)), toCopyRect.Width * 4);
dstPtr += toCopyRect.Width;
}
}
}
return(copyBmp);
}
/// <summary>
/// attach image buffer and its information to the reader
/// </summary>
/// <param name="width"></param>
/// <param name="height"></param>
/// <param name="bitsPerPixel"></param>
/// <param name="imgbuffer"></param>
/// <param name="outputPxBlender"></param>
protected void Attach(int width, int height, int bitsPerPixel, CpuBlit.Imaging.TempMemPtr imgbuffer, PixelBlender32 outputPxBlender)
{
if (width <= 0 || height <= 0)
{
throw new ArgumentOutOfRangeException("You must have a width and height > than 0.");
}
if (bitsPerPixel != 32 && bitsPerPixel != 24 && bitsPerPixel != 8)
{
throw new Exception("Unsupported bits per pixel.");
}
//
//
int bytesPerPixel = (bitsPerPixel + 7) / 8;
int stride = 4 * ((width * bytesPerPixel + 3) / 4);
#if DEBUG
if (bytesPerPixel == 0)
{
}
#endif
//
SetDimmensionAndFormat(width, height, stride, bitsPerPixel, bitsPerPixel / 8);
SetUpLookupTables();
//
this.OutputPixelBlender = outputPxBlender;
//
_raw_buffer32 = imgbuffer.Ptr;
_rawBufferLenInBytes = imgbuffer.LengthInBytes;
}
public static int[] CopyImgBuffer(ActualBitmap img, int width)
{
//calculate stride for the width
int destStride = ActualBitmap.CalculateStride(width, CpuBlit.Imaging.PixelFormat.ARGB32);
int h = img.Height;
int newBmpW = destStride / 4;
int[] buff2 = new int[newBmpW * img.Height];
unsafe
{
CpuBlit.Imaging.TempMemPtr srcBufferPtr = ActualBitmap.GetBufferPtr(img);
byte *srcBuffer = (byte *)srcBufferPtr.Ptr;
int srcIndex = 0;
int srcStride = img.Stride;
fixed(int *destHead = &buff2[0])
{
byte *destHead2 = (byte *)destHead;
for (int line = 0; line < h; ++line)
{
//System.Runtime.InteropServices.Marshal.Copy(srcBuffer, srcIndex, (IntPtr)destHead2, destStride);
NativeMemMx.memcpy((byte *)destHead2, srcBuffer + srcIndex, destStride);
srcIndex += srcStride;
destHead2 += destStride;
}
}
srcBufferPtr.Release();
}
return(buff2);
}
public static int[] CopyImgBuffer(MemBitmap memBmp, int width, int height)
{
//calculate stride for the width
int destStride = MemBitmap.CalculateStride(width, CpuBlit.Imaging.PixelFormat.ARGB32);
int newBmpW = destStride / 4;
int[] buff2 = new int[newBmpW * height];
unsafe
{
using (CpuBlit.Imaging.TempMemPtr srcBufferPtr = MemBitmap.GetBufferPtr(memBmp))
{
byte* srcBuffer = (byte*)srcBufferPtr.Ptr;
int srcIndex = 0;
int srcStride = memBmp.Stride;
fixed (int* destHead = &buff2[0])
{
byte* destHead2 = (byte*)destHead;
for (int line = 0; line < height; ++line)
{
//System.Runtime.InteropServices.Marshal.Copy(srcBuffer, srcIndex, (IntPtr)destHead2, destStride);
NativeMemMx.memcpy((byte*)destHead2, srcBuffer + srcIndex, destStride);
srcIndex += srcStride;
destHead2 += destStride;
}
}
}
}
return buff2;
}
static byte[] CreateGreyScaleBuffer(MemBitmap bmp)
{
//assume img is 32 rgba img
int imgW = bmp.Width;
int height = bmp.Height;
//56 level grey scale buffer
CpuBlit.Imaging.TempMemPtr srcMemPtr = MemBitmap.GetBufferPtr(bmp);
int greyScaleBufferLen = imgW * height;
byte[] greyScaleBuffer = new byte[greyScaleBufferLen];
int destIndex = 0;
int srcImgIndex = 0;
int srcImgStride = bmp.Stride;
unsafe
{
byte *srcImgBuffer = (byte *)srcMemPtr.Ptr;
for (int y = 0; y < height; ++y)
{
srcImgIndex = srcImgStride * y;
destIndex = imgW * y;
for (int x = 0; x < imgW; ++x)
{
byte r = srcImgBuffer[srcImgIndex];
byte g = srcImgBuffer[srcImgIndex + 1];
byte b = srcImgBuffer[srcImgIndex + 2];
byte a = srcImgBuffer[srcImgIndex + 3];
if (r != 0 || g != 0 || b != 0)
{
}
if (a != 255)
{
}
//skip alpha
//byte greyScaleValue =
// (byte)((0.333f * (float)r) + (0.5f * (float)g) + (0.1666f * (float)b));
greyScaleBuffer[destIndex] = (byte)(((a + 1) / 256f) * 64f);
destIndex++;
srcImgIndex += 4;
}
}
}
srcMemPtr.Dispose();
return(greyScaleBuffer);
}
void BlendScanline(MemBitmap dstBmp, byte[] expandGreyBuffer,
PixelFarm.Drawing.Color color, int x, int y, int width)
{
byte[] rgb = new byte[3] {
color.R,
color.G,
color.B
};
//-------------------------
//destination
CpuBlit.Imaging.TempMemPtr memPtr = MemBitmap.GetBufferPtr(dstBmp);
//start pixel
int destImgIndex = (x * 4) + (dstBmp.Stride * y);
//start img src
int srcImgIndex = x + (width * y);
int colorIndex = 0;
int round = 0;
byte color_a = color.alpha;
unsafe
{
byte *destImgBuffer = (byte *)memPtr.Ptr;
while (width > 3)
{
int a0 = expandGreyBuffer[srcImgIndex] * color_a;
int a1 = expandGreyBuffer[srcImgIndex + 1] * color_a;
int a2 = expandGreyBuffer[srcImgIndex + 2] * color_a;
byte ec0 = destImgBuffer[destImgIndex]; //existing color
byte ec1 = destImgBuffer[destImgIndex + 1]; //existing color
byte ec2 = destImgBuffer[destImgIndex + 2]; //existing color
//------------------------------------------------------
//please note that we swap a2 and a0 on the fly****
//------------------------------------------------------
byte n0 = (byte)((((rgb[colorIndex] - ec0) * a2) + (ec0 << 16)) >> 16);
byte n1 = (byte)((((rgb[colorIndex + 1] - ec1) * a1) + (ec1 << 16)) >> 16);
byte n2 = (byte)((((rgb[colorIndex + 2] - ec2) * a0) + (ec2 << 16)) >> 16);
destImgBuffer[destImgIndex] = n0;
destImgBuffer[destImgIndex + 1] = n1;
destImgBuffer[destImgIndex + 2] = n2;
destImgIndex += 4;
round = 0;
colorIndex = 0;
srcImgIndex += 3;
width -= 3;
}
memPtr.Dispose();
}
}
/// <summary>
/// copy from actual image direct to hBmpScan0
/// </summary>
/// <param name="memBmp"></param>
/// <param name="hBmpScan0"></param>
public static void CopyToWindowsBitmapSameSize(
MemBitmap memBmp,
IntPtr hBmpScan0)
{
//1st, fast
CpuBlit.Imaging.TempMemPtr tmp = MemBitmap.GetBufferPtr(memBmp);
//System.Runtime.InteropServices.Marshal.Copy(rawBuffer, 0,
// hBmpScan0, rawBuffer.Length);
unsafe
{
NativeMemMx.memcpy((byte *)hBmpScan0, (byte *)tmp.Ptr, tmp.LengthInBytes);
}
}
public override void RenderTo(Image destImg, int srcX, int srcYy, int srcW, int srcH)
{
//render back buffer to target image
unsafe
{
CpuBlit.MemBitmap memBmp = destImg as CpuBlit.MemBitmap;
if (memBmp != null)
{
CpuBlit.Imaging.TempMemPtr tmpPtr = CpuBlit.MemBitmap.GetBufferPtr(memBmp);
byte *head = (byte *)tmpPtr.Ptr;
_gdigsx.RenderTo(head);
tmpPtr.Dispose();
}
}
}
public static int[] CopyImgBuffer(ActualBitmap img)
{
int[] buff2 = new int[img.Width * img.Height];
unsafe
{
//byte[] pixelBuffer = ActualImage.GetBuffer(img);
CpuBlit.Imaging.TempMemPtr pixBuffer = ActualBitmap.GetBufferPtr(img);
//fixed (byte* header = &pixelBuffer[0])
byte *header = (byte *)pixBuffer.Ptr;
{
System.Runtime.InteropServices.Marshal.Copy((IntPtr)header, buff2, 0, buff2.Length);//length in bytes
}
pixBuffer.Release();
}
return(buff2);
}
public static int[] CopyImgBuffer(MemBitmap memBmp)
{
int[] buff2 = new int[memBmp.Width * memBmp.Height];
unsafe
{
using (CpuBlit.Imaging.TempMemPtr pixBuffer = MemBitmap.GetBufferPtr(memBmp))
{
//fixed (byte* header = &pixelBuffer[0])
byte *header = (byte *)pixBuffer.Ptr;
{
System.Runtime.InteropServices.Marshal.Copy((IntPtr)header, buff2, 0, buff2.Length);//length in bytes
}
}
}
return(buff2);
}
internal unsafe static void NN_StepXBy1(IBitmapSrc bmpsrc, int srcIndex, Drawing.Color[] outputColors, int dstIndex, int len)
{
using (CpuBlit.Imaging.TempMemPtr srcBufferPtr = bmpsrc.GetBufferPtr())
{
int *pSource = (int *)srcBufferPtr.Ptr + srcIndex;
do
{
int srcColor = *pSource;
//separate each component
//TODO: review here, color from source buffer
//should be in 'pre-multiplied' format.
//so it should be converted to 'straight' color by call something like ..'FromPreMult()'
outputColors[dstIndex++] = Drawing.Color.FromArgb(
(srcColor >> CO.A_SHIFT) & 0xff, //a
(srcColor >> CO.R_SHIFT) & 0xff, //r
(srcColor >> CO.G_SHIFT) & 0xff, //g
(srcColor >> CO.B_SHIFT) & 0xff); //b
pSource++; //move next
} while (--len != 0);
}
}
public static int[] CopyImgBuffer(MemBitmap src, int srcX, int srcY, int srcW, int srcH)
{
//calculate stride for the width
int destStride = MemBitmap.CalculateStride(srcW, CpuBlit.Imaging.PixelFormat.ARGB32);
int newBmpW = destStride / 4;
int[] buff2 = new int[newBmpW * srcH];
unsafe
{
using (CpuBlit.Imaging.TempMemPtr srcBufferPtr = MemBitmap.GetBufferPtr(src))
{
byte* srcBuffer = (byte*)srcBufferPtr.Ptr;
int srcIndex = 0;
int srcStride = src.Stride;
fixed (int* destHead = &buff2[0])
{
byte* destHead2 = (byte*)destHead;
//move to specific src line
srcIndex += srcStride * srcY;
int lineEnd = srcY + srcH;
for (int line = srcY; line < lineEnd; ++line)
{
//System.Runtime.InteropServices.Marshal.Copy(srcBuffer, srcIndex, (IntPtr)destHead2, destStride);
NativeMemMx.memcpy((byte*)destHead2, srcBuffer + srcIndex, destStride);
srcIndex += srcStride;
destHead2 += destStride;
}
}
}
}
return buff2;
}
// Create
//--------------------------------------------------------------------
public void Create(IBitmapSrc src)
{
// we are going to create a dialated image for filtering
// we add m_dilation pixels to every side of the image and then copy the image in the x
// dirrection into each end so that we can sample into this image to get filtering on x repeating
// if the original image look like this
//
// 123456
//
// the new image would look like this
//
// 0000000000
// 0000000000
// 5612345612
// 0000000000
// 0000000000
m_height = (int)AggMath.uceil(src.Height);
m_width = (int)AggMath.uceil(src.Width);
m_width_hr = (int)AggMath.uround(src.Width * LineAA.SUBPIXEL_SCALE);
m_half_height_hr = (int)AggMath.uround(src.Height * LineAA.SUBPIXEL_SCALE / 2);
m_offset_y_hr = m_dilation_hr + m_half_height_hr - LineAA.SUBPIXEL_SCALE / 2;
m_half_height_hr += LineAA.SUBPIXEL_SCALE / 2;
int bufferWidth = m_width + m_dilation * 2;
int bufferHeight = m_height + m_dilation * 2;
int bytesPerPixel = src.BitDepth / 8;
int newSizeInBytes = bufferWidth * bufferHeight * bytesPerPixel;
if (m_DataSizeInBytes < newSizeInBytes)
{
m_DataSizeInBytes = newSizeInBytes;
m_data = new int[m_DataSizeInBytes / 4];
}
m_buf = new PixelProcessing.SubBitmapBlender(m_data, 0, bufferWidth, bufferHeight, bufferWidth * bytesPerPixel, src.BitDepth, bytesPerPixel);
unsafe
{
CpuBlit.Imaging.TempMemPtr destMemPtr = m_buf.GetBufferPtr();
CpuBlit.Imaging.TempMemPtr srcMemPtr = src.GetBufferPtr();
int *destBuffer = (int *)destMemPtr.Ptr;
int *srcBuffer = (int *)srcMemPtr.Ptr;
// copy the image into the middle of the dest
for (int y = 0; y < m_height; y++)
{
for (int x = 0; x < m_width; x++)
{
int sourceOffset = src.GetBufferOffsetXY32(x, y);
int destOffset = m_buf.GetBufferOffsetXY32(m_dilation, y + m_dilation);
destBuffer[destOffset] = srcBuffer[sourceOffset];
}
}
// copy the first two pixels form the end into the begining and from the begining into the end
for (int y = 0; y < m_height; y++)
{
int s1Offset = src.GetBufferOffsetXY32(0, y);
int d1Offset = m_buf.GetBufferOffsetXY32(m_dilation + m_width, y);
int s2Offset = src.GetBufferOffsetXY32(m_width - m_dilation, y);
int d2Offset = m_buf.GetBufferOffsetXY32(0, y);
for (int x = 0; x < m_dilation; x++)
{
destBuffer[d1Offset++] = srcBuffer[s1Offset++];
destBuffer[d2Offset++] = srcBuffer[s2Offset++];
}
}
srcMemPtr.Release();
destMemPtr.Release();
}
}
public sealed override void GenerateColors(Drawing.Color[] outputColors, int startIndex, int x, int y, int len)
{
ISpanInterpolator spanInterpolator = Interpolator;
spanInterpolator.Begin(x + dx, y + dy, len);
int x_hr;
int y_hr;
spanInterpolator.GetCoord(out x_hr, out y_hr);
int x_lr = x_hr >> img_subpix_const.SHIFT;
int y_lr = y_hr >> img_subpix_const.SHIFT;
int bufferIndex = _bmpSrc.GetBufferOffsetXY32(x_lr, y_lr);
unsafe
{
using (CpuBlit.Imaging.TempMemPtr srcBufferPtr = _bmpSrc.GetBufferPtr())
{
int *pSource = (int *)srcBufferPtr.Ptr + bufferIndex;
do
{
int src_value = *pSource;
//separate each component
//TODO: review here, color from source buffer
//should be in 'pre-multiplied' format.
//so it should be converted to 'straight' color by call something like ..'FromPreMult()'
outputColors[startIndex++] = Drawing.Color.FromArgb(
(byte)((src_value >> 24) & 0xff), //a
(byte)((src_value >> 16) & 0xff), //r
(byte)((src_value >> 8) & 0xff), //g
(byte)((src_value) & 0xff)); //b
pSource++; //move next
} while (--len != 0);
}
}
//version 1 , incorrect
//ISpanInterpolator spanInterpolator = Interpolator;
//spanInterpolator.Begin(x + dx, y + dy, len);
//int x_hr;
//int y_hr;
//spanInterpolator.GetCoord(out x_hr, out y_hr);
//int x_lr = x_hr >> img_subpix_const.SHIFT;
//int y_lr = y_hr >> img_subpix_const.SHIFT;
//int bufferIndex = srcRW.GetBufferOffsetXY(x_lr, y_lr);
//byte[] srcBuffer = srcRW.GetBuffer();
//unsafe
//{
// fixed (byte* pSource = srcBuffer)
// {
// do
// {
// outputColors[startIndex++] = *(Drawing.Color*)&(pSource[bufferIndex]);
// bufferIndex += 4;
// } while (--len != 0);
// }
//}
}
public sealed override void GenerateColors(Drawing.Color[] outputColors, int startIndex, int x, int y, int len)
{
#if DEBUG
int tmp_len = len;
#endif
unsafe
{
//TODO: review here
if (_mode0)
{
using (CpuBlit.Imaging.TempMemPtr.FromBmp(_imgsrc, out int *srcBuffer))
{
int bufferIndex = _imgsrc.GetBufferOffsetXY32(x, y);
//unsafe
{
#if true
do
{
//TODO: review here, match component?
//ORDER IS IMPORTANT!
//TODO : use CO (color order instead)
int color = srcBuffer[bufferIndex++];
//byte b = (byte)srcBuffer[bufferIndex++];
//byte g = (byte)srcBuffer[bufferIndex++];
//byte r = (byte)srcBuffer[bufferIndex++];
//byte a = (byte)srcBuffer[bufferIndex++];
//outputColors[startIndex] = Drawing.Color.FromArgb(a, r, g, b);
outputColors[startIndex] = Drawing.Color.FromArgb(
(color >> 24) & 0xff, //a
(color >> 16) & 0xff, //r
(color >> 8) & 0xff, //b
(color) & 0xff //b
);
++startIndex;
} while (--len != 0);
#else
fixed(byte *pSource = &fg_ptr[bufferIndex])
{
int *pSourceInt = (int *)pSource;
fixed(RGBA_Bytes *pDest = &span[spanIndex])
{
int *pDestInt = (int *)pDest;
do
{
*pDestInt++ = *pSourceInt++;
} while (--len != 0);
}
}
#endif
}
}
}
else
{
ISpanInterpolator spanInterpolator = base.Interpolator;
using (CpuBlit.Imaging.TempMemPtr srcBufferPtr = _imgsrc.GetBufferPtr())
{
int *srcBuffer = (int *)srcBufferPtr.Ptr;
spanInterpolator.Begin(x + base.dx, y + base.dy, len);
int accColor0, accColor1, accColor2, accColor3;
int back_r = m_bgcolor.red;
int back_g = m_bgcolor.green;
int back_b = m_bgcolor.blue;
int back_a = m_bgcolor.alpha;
int maxx = _imgsrc.Width - 1;
int maxy = _imgsrc.Height - 1;
int color = 0;
unchecked
{
do
{
int x_hr;
int y_hr;
spanInterpolator.GetCoord(out x_hr, out y_hr);
x_hr -= base.dxInt;
y_hr -= base.dyInt;
int x_lr = x_hr >> img_subpix_const.SHIFT;
int y_lr = y_hr >> img_subpix_const.SHIFT;
int weight;
if (x_lr >= 0 && y_lr >= 0 &&
x_lr < maxx && y_lr < maxy)
{
int bufferIndex = _imgsrc.GetBufferOffsetXY32(x_lr, y_lr);
accColor0 =
accColor1 =
accColor2 =
accColor3 = (int)img_subpix_const.SCALE * (int)img_subpix_const.SCALE / 2;
x_hr &= img_subpix_const.MASK;
y_hr &= img_subpix_const.MASK;
//bufferIndex = _imgsrc.GetBufferOffsetXY32(x_lr, y_lr);
weight = ((img_subpix_const.SCALE - x_hr) *
(img_subpix_const.SCALE - y_hr));
if (weight > BASE_MASK)
{
color = srcBuffer[bufferIndex];
accColor3 += weight * ((color >> 24) & 0xff); //a
accColor0 += weight * ((color >> 16) & 0xff); //r
accColor1 += weight * ((color >> 8) & 0xff); //g
accColor2 += weight * ((color) & 0xff); //b
}
weight = (x_hr * ((int)img_subpix_const.SCALE - y_hr));
if (weight > BASE_MASK)
{
bufferIndex++;
color = srcBuffer[bufferIndex];
//
accColor3 += weight * ((color >> 24) & 0xff); //a
accColor0 += weight * ((color >> 16) & 0xff); //r
accColor1 += weight * ((color >> 8) & 0xff); //g
accColor2 += weight * ((color) & 0xff); //b
}
weight = (((int)img_subpix_const.SCALE - x_hr) * y_hr);
if (weight > BASE_MASK)
{
++y_lr;
//
bufferIndex = _imgsrc.GetBufferOffsetXY32(x_lr, y_lr);
color = srcBuffer[bufferIndex];
//
accColor3 += weight * ((color >> 24) & 0xff); //a
accColor0 += weight * ((color >> 16) & 0xff); //r
accColor1 += weight * ((color >> 8) & 0xff); //g
accColor2 += weight * ((color) & 0xff); //b
}
weight = (x_hr * y_hr);
if (weight > BASE_MASK)
{
bufferIndex++;
color = srcBuffer[bufferIndex];
//
accColor3 += weight * ((color >> 24) & 0xff); //a
accColor0 += weight * ((color >> 16) & 0xff); //r
accColor1 += weight * ((color >> 8) & 0xff); //g
accColor2 += weight * ((color) & 0xff); //b
}
accColor0 >>= img_subpix_const.SHIFT * 2;
accColor1 >>= img_subpix_const.SHIFT * 2;
accColor2 >>= img_subpix_const.SHIFT * 2;
accColor3 >>= img_subpix_const.SHIFT * 2;
}
else
{
if (x_lr < -1 || y_lr < -1 ||
x_lr > maxx || y_lr > maxy)
{
accColor0 = back_r;
accColor1 = back_g;
accColor2 = back_b;
accColor3 = back_a;
}
else
{
accColor0 =
accColor1 =
accColor2 =
accColor3 = (int)img_subpix_const.SCALE * (int)img_subpix_const.SCALE / 2;
x_hr &= (int)img_subpix_const.MASK;
y_hr &= (int)img_subpix_const.MASK;
weight = (((int)img_subpix_const.SCALE - x_hr) *
((int)img_subpix_const.SCALE - y_hr));
if (weight > BASE_MASK)
{
if ((uint)x_lr <= (uint)maxx && (uint)y_lr <= (uint)maxy)
{
BlendInFilterPixel(
ref accColor0, ref accColor1, ref accColor2, ref accColor3,
srcBuffer,
_imgsrc.GetBufferOffsetXY32(x_lr, y_lr),
weight);
}
else
{
accColor0 += back_r * weight;
accColor1 += back_g * weight;
accColor2 += back_b * weight;
accColor3 += back_a * weight;
}
}
x_lr++;
weight = (x_hr * ((int)img_subpix_const.SCALE - y_hr));
if (weight > BASE_MASK)
{
if ((uint)x_lr <= (uint)maxx && (uint)y_lr <= (uint)maxy)
{
BlendInFilterPixel(ref accColor0, ref accColor1, ref accColor2, ref accColor3,
srcBuffer,
_imgsrc.GetBufferOffsetXY32(x_lr, y_lr),
weight);
}
else
{
accColor0 += back_r * weight;
accColor1 += back_g * weight;
accColor2 += back_b * weight;
accColor3 += back_a * weight;
}
}
x_lr--;
y_lr++;
weight = (((int)img_subpix_const.SCALE - x_hr) * y_hr);
if (weight > BASE_MASK)
{
if ((uint)x_lr <= (uint)maxx && (uint)y_lr <= (uint)maxy)
{
BlendInFilterPixel(ref accColor0, ref accColor1, ref accColor2, ref accColor3,
srcBuffer,
_imgsrc.GetBufferOffsetXY32(x_lr, y_lr),
weight);
}
else
{
accColor0 += back_r * weight;
accColor1 += back_g * weight;
accColor2 += back_b * weight;
accColor3 += back_a * weight;
}
}
x_lr++;
weight = (x_hr * y_hr);
if (weight > BASE_MASK)
{
if ((uint)x_lr <= (uint)maxx && (uint)y_lr <= (uint)maxy)
{
BlendInFilterPixel(ref accColor0, ref accColor1, ref accColor2, ref accColor3,
srcBuffer,
_imgsrc.GetBufferOffsetXY32(x_lr, y_lr),
weight);
}
else
{
accColor0 += back_r * weight;
accColor1 += back_g * weight;
accColor2 += back_b * weight;
accColor3 += back_a * weight;
}
}
accColor0 >>= img_subpix_const.SHIFT * 2;
accColor1 >>= img_subpix_const.SHIFT * 2;
accColor2 >>= img_subpix_const.SHIFT * 2;
accColor3 >>= img_subpix_const.SHIFT * 2;
}
}
#if DEBUG
if (startIndex >= outputColors.Length)
{
}
#endif
outputColors[startIndex] = PixelFarm.Drawing.Color.FromArgb(
(byte)accColor3,
(byte)accColor0,
(byte)accColor1,
(byte)accColor2
);
//outputColors[startIndex].red = (byte)accColor0;
//outputColors[startIndex].green = (byte)accColor1;
//outputColors[startIndex].blue = (byte)accColor2;
//outputColors[startIndex].alpha = (byte)accColor3;
++startIndex;
spanInterpolator.Next();
} while (--len != 0);
}
}
}
}
}
public sealed override void GenerateColors(Drawing.Color[] outputColors, int startIndex, int x, int y, int len)
{
#if DEBUG
int tmp_len = len;
#endif
unsafe
{
//TODO: review here
if (_noTransformation)
{
using (CpuBlit.Imaging.TempMemPtr.FromBmp(_bmpSrc, out int *srcBuffer))
{
int bufferIndex = _bmpSrc.GetBufferOffsetXY32(x, y);
do
{
//TODO: review here, match component?
//ORDER IS IMPORTANT!
//TODO : use CO (color order instead)
int srcColor = srcBuffer[bufferIndex++];
outputColors[startIndex] = Drawing.Color.FromArgb(
(srcColor >> CO.A_SHIFT) & 0xff, //a
(srcColor >> CO.R_SHIFT) & 0xff, //r
(srcColor >> CO.G_SHIFT) & 0xff, //g
(srcColor >> CO.B_SHIFT) & 0xff); //b
++startIndex;
} while (--len != 0);
}
}
else
{
//Bilinear interpolation, without lookup table
ISpanInterpolator spanInterpolator = base.Interpolator;
using (CpuBlit.Imaging.TempMemPtr srcBufferPtr = _bmpSrc.GetBufferPtr())
{
int *srcBuffer = (int *)srcBufferPtr.Ptr;
spanInterpolator.Begin(x + base.dx, y + base.dy, len);
//accumulated color component
int acc_r, acc_g, acc_b, acc_a;
Color bgColor = this.BackgroundColor;
int back_r = bgColor.red;
int back_g = bgColor.green;
int back_b = bgColor.blue;
int back_a = bgColor.alpha;
int maxx = _bmpSrc.Width - 1;
int maxy = _bmpSrc.Height - 1;
int srcColor = 0;
do
{
int x_hr;
int y_hr;
spanInterpolator.GetCoord(out x_hr, out y_hr);
x_hr -= base.dxInt;
y_hr -= base.dyInt;
int x_lr = x_hr >> subpix_const.SHIFT;
int y_lr = y_hr >> subpix_const.SHIFT;
int weight;
if (x_lr >= 0 && y_lr >= 0 &&
x_lr < maxx && y_lr < maxy)
{
int bufferIndex = _bmpSrc.GetBufferOffsetXY32(x_lr, y_lr);
//accumulated color components
acc_r =
acc_g =
acc_b =
acc_a = subpix_const.SCALE * subpix_const.SCALE / 2;
x_hr &= subpix_const.MASK;
y_hr &= subpix_const.MASK;
weight = (subpix_const.SCALE - x_hr) * (subpix_const.SCALE - y_hr);
if (weight > BASE_MASK)
{
srcColor = srcBuffer[bufferIndex];
acc_a += weight * ((srcColor >> CO.A_SHIFT) & 0xff); //a
acc_r += weight * ((srcColor >> CO.R_SHIFT) & 0xff); //r
acc_g += weight * ((srcColor >> CO.G_SHIFT) & 0xff); //g
acc_b += weight * ((srcColor >> CO.B_SHIFT) & 0xff); //b
}
weight = (x_hr * (subpix_const.SCALE - y_hr));
if (weight > BASE_MASK)
{
bufferIndex++;
srcColor = srcBuffer[bufferIndex];
//
acc_a += weight * ((srcColor >> CO.A_SHIFT) & 0xff); //a
acc_r += weight * ((srcColor >> CO.R_SHIFT) & 0xff); //r
acc_g += weight * ((srcColor >> CO.G_SHIFT) & 0xff); //g
acc_b += weight * ((srcColor >> CO.B_SHIFT) & 0xff); //b
}
weight = ((subpix_const.SCALE - x_hr) * y_hr);
if (weight > BASE_MASK)
{
++y_lr;
//
bufferIndex = _bmpSrc.GetBufferOffsetXY32(x_lr, y_lr);
srcColor = srcBuffer[bufferIndex];
//
acc_a += weight * ((srcColor >> CO.A_SHIFT) & 0xff); //a
acc_r += weight * ((srcColor >> CO.R_SHIFT) & 0xff); //r
acc_g += weight * ((srcColor >> CO.G_SHIFT) & 0xff); //g
acc_b += weight * ((srcColor >> CO.B_SHIFT) & 0xff); //b
}
weight = (x_hr * y_hr);
if (weight > BASE_MASK)
{
bufferIndex++;
srcColor = srcBuffer[bufferIndex];
//
acc_a += weight * ((srcColor >> CO.A_SHIFT) & 0xff); //a
acc_r += weight * ((srcColor >> CO.R_SHIFT) & 0xff); //r
acc_g += weight * ((srcColor >> CO.G_SHIFT) & 0xff); //g
acc_b += weight * ((srcColor >> CO.B_SHIFT) & 0xff); //b
}
acc_r >>= subpix_const.SHIFT * 2;
acc_g >>= subpix_const.SHIFT * 2;
acc_b >>= subpix_const.SHIFT * 2;
acc_a >>= subpix_const.SHIFT * 2;
}
else
{
if (x_lr < -1 || y_lr < -1 ||
x_lr > maxx || y_lr > maxy)
{
acc_r = back_r;
acc_g = back_g;
acc_b = back_b;
acc_a = back_a;
}
else
{
acc_r =
acc_g =
acc_b =
acc_a = subpix_const.SCALE * subpix_const.SCALE / 2;
x_hr &= subpix_const.MASK;
y_hr &= subpix_const.MASK;
weight = (subpix_const.SCALE - x_hr) * (subpix_const.SCALE - y_hr);
if (weight > BASE_MASK)
{
if ((uint)x_lr <= (uint)maxx && (uint)y_lr <= (uint)maxy)
{
srcColor = srcBuffer[_bmpSrc.GetBufferOffsetXY32(x_lr, y_lr)];
//
acc_a += weight * ((srcColor >> CO.A_SHIFT) & 0xff); //a
acc_r += weight * ((srcColor >> CO.R_SHIFT) & 0xff); //r
acc_g += weight * ((srcColor >> CO.G_SHIFT) & 0xff); //g
acc_b += weight * ((srcColor >> CO.B_SHIFT) & 0xff); //b
}
else
{
acc_r += back_r * weight;
acc_g += back_g * weight;
acc_b += back_b * weight;
acc_a += back_a * weight;
}
}
x_lr++;
weight = x_hr * (subpix_const.SCALE - y_hr);
if (weight > BASE_MASK)
{
if ((uint)x_lr <= (uint)maxx && (uint)y_lr <= (uint)maxy)
{
srcColor = srcBuffer[_bmpSrc.GetBufferOffsetXY32(x_lr, y_lr)];
//
acc_a += weight * ((srcColor >> CO.A_SHIFT) & 0xff); //a
acc_r += weight * ((srcColor >> CO.R_SHIFT) & 0xff); //r
acc_g += weight * ((srcColor >> CO.G_SHIFT) & 0xff); //g
acc_b += weight * ((srcColor >> CO.B_SHIFT) & 0xff); //b
}
else
{
acc_r += back_r * weight;
acc_g += back_g * weight;
acc_b += back_b * weight;
acc_a += back_a * weight;
}
}
x_lr--;
y_lr++;
weight = (subpix_const.SCALE - x_hr) * y_hr;
if (weight > BASE_MASK)
{
if ((uint)x_lr <= (uint)maxx && (uint)y_lr <= (uint)maxy)
{
srcColor = srcBuffer[_bmpSrc.GetBufferOffsetXY32(x_lr, y_lr)];
//
acc_a += weight * ((srcColor >> CO.A_SHIFT) & 0xff); //a
acc_r += weight * ((srcColor >> CO.R_SHIFT) & 0xff); //r
acc_g += weight * ((srcColor >> CO.G_SHIFT) & 0xff); //g
acc_b += weight * ((srcColor >> CO.B_SHIFT) & 0xff); //b
}
else
{
acc_r += back_r * weight;
acc_g += back_g * weight;
acc_b += back_b * weight;
acc_a += back_a * weight;
}
}
x_lr++;
weight = (x_hr * y_hr);
if (weight > BASE_MASK)
{
if ((uint)x_lr <= (uint)maxx && (uint)y_lr <= (uint)maxy)
{
srcColor = srcBuffer[_bmpSrc.GetBufferOffsetXY32(x_lr, y_lr)];
//
acc_a += weight * ((srcColor >> CO.A_SHIFT) & 0xff); //a
acc_r += weight * ((srcColor >> CO.R_SHIFT) & 0xff); //r
acc_g += weight * ((srcColor >> CO.G_SHIFT) & 0xff); //g
acc_b += weight * ((srcColor >> CO.B_SHIFT) & 0xff); //b
}
else
{
acc_r += back_r * weight;
acc_g += back_g * weight;
acc_b += back_b * weight;
acc_a += back_a * weight;
}
}
acc_r >>= subpix_const.SHIFT * 2;
acc_g >>= subpix_const.SHIFT * 2;
acc_b >>= subpix_const.SHIFT * 2;
acc_a >>= subpix_const.SHIFT * 2;
}
}
#if DEBUG
if (startIndex >= outputColors.Length)
{
}
#endif
outputColors[startIndex] = PixelFarm.Drawing.Color.FromArgb(
(byte)acc_a,
(byte)acc_r,
(byte)acc_g,
(byte)acc_b
);
++startIndex;
spanInterpolator.Next();
} while (--len != 0);
} //using
} //else
} //unsafe
}
public override void GenerateColors(Color[] outputColors, int startIndex, int x, int y, int len)
{
ISpanInterpolator spanInterpolator = this.Interpolator;
int acc_r, acc_g, acc_b, acc_a;
int diameter = _lut.Diameter;
int start = _lut.Start;
int[] weight_array = _lut.WeightArray;
int x_count;
int weight_y;
unsafe
{
using (CpuBlit.Imaging.TempMemPtr srcBufferPtr = _bmpSrc.GetBufferPtr())
{
int *srcBuffer = (int *)srcBufferPtr.Ptr;
spanInterpolator.Begin(x + base.dx, y + base.dy, len);
do
{
spanInterpolator.GetCoord(out x, out y);
x -= base.dxInt;
y -= base.dyInt;
int x_hr = x;
int y_hr = y;
int x_lr = x_hr >> subpix_const.SHIFT;
int y_lr = y_hr >> subpix_const.SHIFT;
//accumualted color components
acc_r =
acc_g =
acc_b =
acc_a = filter_const.SCALE / 2;
int x_fract = x_hr & subpix_const.MASK;
int y_count = diameter;
y_hr = subpix_const.MASK - (y_hr & subpix_const.MASK);
int bufferIndex = _bmpSrc.GetBufferOffsetXY32(x_lr, y_lr);
int tmp_Y = y_lr;
for (; ;)
{
x_count = diameter;
weight_y = weight_array[y_hr];
x_hr = subpix_const.MASK - x_fract;
//-------------------
for (; ;)
{
int weight = (weight_y * weight_array[x_hr] +
filter_const.SCALE / 2) >>
filter_const.SHIFT;
int srcColor = srcBuffer[bufferIndex];
acc_a += weight * ((srcColor >> CO.A_SHIFT) & 0xff); //a
acc_r += weight * ((srcColor >> CO.R_SHIFT) & 0xff); //r
acc_g += weight * ((srcColor >> CO.G_SHIFT) & 0xff); //g
acc_b += weight * ((srcColor >> CO.B_SHIFT) & 0xff); //b
if (--x_count == 0)
{
break; //for
}
x_hr += subpix_const.SCALE;
bufferIndex++;
}
//-------------------
if (--y_count == 0)
{
break;
}
y_hr += subpix_const.SCALE;
tmp_Y++; //move down to next row-> and find start bufferIndex
bufferIndex = _bmpSrc.GetBufferOffsetXY32(x_lr, tmp_Y);
}
acc_r >>= filter_const.SHIFT;
acc_g >>= filter_const.SHIFT;
acc_b >>= filter_const.SHIFT;
acc_a >>= filter_const.SHIFT;
unchecked
{
if ((uint)acc_r > BASE_MASK)
{
if (acc_r < 0)
{
acc_r = 0;
}
if (acc_r > BASE_MASK)
{
acc_r = BASE_MASK;
}
}
if ((uint)acc_g > BASE_MASK)
{
if (acc_g < 0)
{
acc_g = 0;
}
if (acc_g > BASE_MASK)
{
acc_g = BASE_MASK;
}
}
if ((uint)acc_b > BASE_MASK)
{
if (acc_b < 0)
{
acc_b = 0;
}
if (acc_b > BASE_MASK)
{
acc_b = BASE_MASK;
}
}
if ((uint)acc_a > BASE_MASK)
{
if (acc_a < 0)
{
acc_a = 0;
}
if (acc_a > BASE_MASK)
{
acc_a = BASE_MASK;
}
}
}
outputColors[startIndex] = PixelFarm.Drawing.Color.FromArgb(
(byte)acc_a, //a
(byte)acc_r,
(byte)acc_g,
(byte)acc_b);
startIndex++;
spanInterpolator.Next();
} while (--len != 0);
}
}
}
/////////////////////////////////////////////////////////////////////////////////////
public static void CopyToGdiPlusBitmapSameSize(
MemBitmap memBmp,
SkiaSharp.SKBitmap skBmp)
{
//agg store image buffer head-down
//when copy to window bmp we here to flip
//style1: copy row by row *** (fastest)***
{
//System.GC.Collect();
//System.Diagnostics.Stopwatch sss = new System.Diagnostics.Stopwatch();
//sss.Start();
//for (int i = 0; i < 1000; ++i)
//{
int h = skBmp.Height;
int w = skBmp.Width;
//BitmapData bitmapData1 = bitmap.LockBits(
// new Rectangle(0, 0,
// w,
// h),
// System.Drawing.Imaging.ImageLockMode.ReadWrite,
// bitmap.PixelFormat);
skBmp.LockPixels();
IntPtr scan0 = skBmp.GetPixels();
int stride = memBmp.Stride;
//byte[] srcBuffer = ActualImage.GetBuffer(actualImage);
unsafe
{
CpuBlit.Imaging.TempMemPtr srcBufferPtr = MemBitmap.GetBufferPtr(memBmp);
//fixed (byte* bufferH = &srcBuffer[0])
byte *bufferH = (byte *)srcBufferPtr.Ptr;
{
byte *target = (byte *)scan0;
int startRowAt = ((h - 1) * stride);
for (int y = h; y > 0; --y)
{
//byte* src = bufferH + ((y - 1) * stride);
//System.Runtime.InteropServices.Marshal.Copy(
// srcBuffer,//src
// startRowAt,
// (IntPtr)target,
// stride);
PixelFarm.CpuBlit.MemMx.memcpy(target, bufferH + startRowAt, stride);
startRowAt -= stride;
target += stride;
}
}
srcBufferPtr.Dispose();
}
skBmp.UnlockPixels();
//}
//sss.Stop();
//long ms = sss.ElapsedMilliseconds;
}
//-----------------------------------
//style2: copy all, then flip again
//{
// System.GC.Collect();
// System.Diagnostics.Stopwatch sss = new System.Diagnostics.Stopwatch();
// sss.Start();
// for (int i = 0; i < 1000; ++i)
// {
// byte[] rawBuffer = ActualImage.GetBuffer(actualImage);
// var bmpdata = bitmap.LockBits(new System.Drawing.Rectangle(0, 0, bitmap.Width, bitmap.Height),
// System.Drawing.Imaging.ImageLockMode.ReadOnly,
// bitmap.PixelFormat);
// System.Runtime.InteropServices.Marshal.Copy(rawBuffer, 0,
// bmpdata.Scan0, rawBuffer.Length);
// bitmap.UnlockBits(bmpdata);
// bitmap.RotateFlip(RotateFlipType.RotateNoneFlipY);
// }
// sss.Stop();
// long ms = sss.ElapsedMilliseconds;
//}
//-----------------------------------
//-----------------------------------
//style3: copy row by row +
//{
// System.GC.Collect();
// System.Diagnostics.Stopwatch sss = new System.Diagnostics.Stopwatch();
// sss.Start();
// for (int i = 0; i < 1000; ++i)
// {
// int h = bitmap.Height;
// int w = bitmap.Width;
// BitmapData bitmapData1 = bitmap.LockBits(
// new Rectangle(0, 0,
// w,
// h),
// System.Drawing.Imaging.ImageLockMode.ReadWrite,
// bitmap.PixelFormat);
// IntPtr scan0 = bitmapData1.Scan0;
// int stride = bitmapData1.Stride;
// byte[] buffer = ActualImage.GetBuffer(actualImage);
// unsafe
// {
// fixed (byte* bufferH = &buffer[0])
// {
// byte* target = (byte*)scan0;
// for (int y = h; y > 0; --y)
// {
// byte* src = bufferH + ((y - 1) * stride);
// for (int n = stride - 1; n >= 0; --n)
// {
// *target = *src;
// target++;
// src++;
// }
// }
// }
// }
// bitmap.UnlockBits(bitmapData1);
// }
// sss.Stop();
// long ms = sss.ElapsedMilliseconds;
//}
}
void CopyFromNoClipping(IBitmapSrc sourceImage, RectInt clippedSourceImageRect, int destXOffset, int destYOffset)
{
if (BytesBetweenPixelsInclusive != BitDepth / 8 ||
sourceImage.BytesBetweenPixelsInclusive != sourceImage.BitDepth / 8)
{
throw new Exception("WIP we only support packed pixel formats at this time.");
}
if (BitDepth == sourceImage.BitDepth)
{
int lengthInBytes = clippedSourceImageRect.Width * BytesBetweenPixelsInclusive;
int sourceOffset = sourceImage.GetBufferOffsetXY32(clippedSourceImageRect.Left, clippedSourceImageRect.Bottom);
unsafe
{
using (CpuBlit.Imaging.TempMemPtr memPtr = sourceImage.GetBufferPtr())
using (CpuBlit.Imaging.TempMemPtr destPtr = this.GetBufferPtr())
{
byte *sourceBuffer = (byte *)memPtr.Ptr;
byte *destBuffer = (byte *)destPtr.Ptr;
int destOffset = GetBufferOffsetXY32(clippedSourceImageRect.Left + destXOffset, clippedSourceImageRect.Bottom + destYOffset);
for (int i = 0; i < clippedSourceImageRect.Height; i++)
{
MemMx.memmove(destBuffer, destOffset * 4, sourceBuffer, sourceOffset, lengthInBytes);
sourceOffset += sourceImage.Stride;
destOffset += Stride;
}
}
}
}
else
{
bool haveConversion = true;
switch (sourceImage.BitDepth)
{
case 24:
switch (BitDepth)
{
case 32:
{
//TODO: review here, this may not correct
int numPixelsToCopy = clippedSourceImageRect.Width;
for (int i = clippedSourceImageRect.Bottom; i < clippedSourceImageRect.Top; i++)
{
int sourceOffset = sourceImage.GetBufferOffsetXY32(clippedSourceImageRect.Left, clippedSourceImageRect.Bottom + i);
//byte[] sourceBuffer = sourceImage.GetBuffer();
//byte[] destBuffer = GetBuffer();
using (CpuBlit.Imaging.TempMemPtr srcMemPtr = sourceImage.GetBufferPtr())
using (CpuBlit.Imaging.TempMemPtr destBufferPtr = this.GetBufferPtr())
{
int destOffset = GetBufferOffsetXY32(
clippedSourceImageRect.Left + destXOffset,
clippedSourceImageRect.Bottom + i + destYOffset);
unsafe
{
int *destBuffer = (int *)destBufferPtr.Ptr;
int *sourceBuffer = (int *)srcMemPtr.Ptr;
for (int x = 0; x < numPixelsToCopy; x++)
{
int color = sourceBuffer[sourceOffset++];
destBuffer[destOffset++] =
(255 << 24) | //a
(color & 0xff0000) | //b
(color & 0x00ff00) | //g
(color & 0xff);
//destBuffer[destOffset++] = sourceBuffer[sourceOffset++];
//destBuffer[destOffset++] = sourceBuffer[sourceOffset++];
//destBuffer[destOffset++] = 255;
}
}
}
}
}
break;
default:
haveConversion = false;
break;
}
break;
default:
haveConversion = false;
break;
}
if (!haveConversion)
{
throw new NotImplementedException("You need to write the " + sourceImage.BitDepth.ToString() + " to " + BitDepth.ToString() + " conversion");
}
}
}
// Create
//--------------------------------------------------------------------
public void Create(IBitmapSrc src)
{
// we are going to create a dialated image for filtering
// we add m_dilation pixels to every side of the image and then copy the image in the x
// dirrection into each end so that we can sample into this image to get filtering on x repeating
// if the original image look like this
//
// 123456
//
// the new image would look like this
//
// 0000000000
// 0000000000
// 5612345612
// 0000000000
// 0000000000
_height = (int)AggMath.uceil(src.Height);
_width = (int)AggMath.uceil(src.Width);
_width_hr = (int)AggMath.uround(src.Width * LineAA.SUBPIXEL_SCALE);
_half_height_hr = (int)AggMath.uround(src.Height * LineAA.SUBPIXEL_SCALE / 2);
_offset_y_hr = _dilation_hr + _half_height_hr - LineAA.SUBPIXEL_SCALE / 2;
_half_height_hr += LineAA.SUBPIXEL_SCALE / 2;
int bufferWidth = _width + _dilation * 2;
int bufferHeight = _height + _dilation * 2;
int bytesPerPixel = src.BitDepth / 8;
int newSizeInBytes = bufferWidth * bufferHeight * bytesPerPixel;
if (_DataSizeInBytes < newSizeInBytes)
{
_DataSizeInBytes = newSizeInBytes;
_data.Dispose();
IntPtr nativeBuff = System.Runtime.InteropServices.Marshal.AllocHGlobal(_DataSizeInBytes);
_data = new Imaging.TempMemPtr(nativeBuff, _DataSizeInBytes);
}
_buf = new PixelProcessing.SubBitmapBlender(_data, 0, bufferWidth, bufferHeight, bufferWidth * bytesPerPixel, src.BitDepth, bytesPerPixel);
unsafe
{
using (CpuBlit.Imaging.TempMemPtr destMemPtr = _buf.GetBufferPtr())
using (CpuBlit.Imaging.TempMemPtr srcMemPtr = src.GetBufferPtr())
{
int* destBuffer = (int*)destMemPtr.Ptr;
int* srcBuffer = (int*)srcMemPtr.Ptr;
// copy the image into the middle of the dest
for (int y = 0; y < _height; y++)
{
for (int x = 0; x < _width; x++)
{
int sourceOffset = src.GetBufferOffsetXY32(x, y);
int destOffset = _buf.GetBufferOffsetXY32(_dilation, y + _dilation);
destBuffer[destOffset] = srcBuffer[sourceOffset];
}
}
// copy the first two pixels form the end into the begining and from the begining into the end
for (int y = 0; y < _height; y++)
{
int s1Offset = src.GetBufferOffsetXY32(0, y);
int d1Offset = _buf.GetBufferOffsetXY32(_dilation + _width, y);
int s2Offset = src.GetBufferOffsetXY32(_width - _dilation, y);
int d2Offset = _buf.GetBufferOffsetXY32(0, y);
for (int x = 0; x < _dilation; x++)
{
destBuffer[d1Offset++] = srcBuffer[s1Offset++];
destBuffer[d2Offset++] = srcBuffer[s2Offset++];
}
}
}
}
}
