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 unsafe void memmove(byte *dest, int destIndex, byte *source, int sourceIndex, int count)
{
if (source != dest ||
destIndex < sourceIndex)
{
NativeMemMx.memcpy(dest + destIndex, source + sourceIndex, count);
// memcpy(dest, destIndex, source, sourceIndex, Count);
}
else
{
throw new Exception("this code needs to be tested");
}
}
public static int[] CopyImgBuffer(ActualBitmap src, int srcX, int srcY, int srcW, int srcH)
{
//calculate stride for the width
int destStride = ActualBitmap.CalculateStride(srcW, CpuBlit.Imaging.PixelFormat.ARGB32);
int newBmpW = destStride / 4;
int[] buff2 = new int[newBmpW * srcH];
unsafe
{
CpuBlit.Imaging.TempMemPtr srcBufferPtr = ActualBitmap.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;
}
}
srcBufferPtr.Release();
}
return(buff2);
}