private static Bitmap RgbProcess(Bitmap destImg, int destX, int destY, int destWidth, int destHeight,
Bitmap srcImg, int srcX, int srcY,
RgbProcessDelegate rgbProcessFunction)
{
var dst = destImg; //new Bitmap(destImg);
var dstData = dst.LockBits(new Rectangle(destX, destY, destWidth, destHeight), ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);
var dstStride = Math.Abs(dstData.Stride);
var dstScan0 = dstData.Scan0;
var dstBuffer = new byte[dstStride];
var src = srcImg; //new Bitmap(srcImg);
var srcData = src.LockBits(new Rectangle(srcX, srcY, destWidth, destHeight), ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);
var srcStride = Math.Abs(srcData.Stride);
var srcScan0 = srcData.Scan0;
var srcBuffer = new byte[srcStride];
for (var y = 0; y < destHeight; y++)
{
System.Runtime.InteropServices.Marshal.Copy(srcScan0 + y * srcStride, srcBuffer, 0, srcStride);
System.Runtime.InteropServices.Marshal.Copy(dstScan0 + y * dstStride, dstBuffer, 0, dstStride);
for (var x = 0; x < destWidth; x += 3)
{
rgbProcessFunction(srcBuffer[x + 2], srcBuffer[x + 1], srcBuffer[x],
ref dstBuffer[x + 2], ref dstBuffer[x + 1], ref dstBuffer[x]);
}
System.Runtime.InteropServices.Marshal.Copy(dstBuffer, 0, dstScan0 + y * dstStride, dstStride);
}
//unsafe
//{
// byte* pDst = (byte*)(void*)dstScan0;
// byte* pSrc = (byte*)(void*)srcScan0;
// for (int y = 0; y < destHeight; y++)
// {
// for (int x = 0; x < destWidth; x++)
// {
// rgbProcessFunction(
// pSrc[x * 3 + 2 + y * srcStride], pSrc[x * 3 + 1 + y * srcStride], pSrc[x * 3 + y * srcStride],
// ref pDst[x * 3 + 2 + y * dstStride], ref pDst[x * 3 + 1 + y * dstStride], ref pDst[x * 3 + y * dstStride]
// );
// }
// }
//}
src.UnlockBits(srcData);
dst.UnlockBits(dstData);
return(dst);
}
private static Bitmap RgbProcess(Bitmap destImg, int destX, int destY, int destWidth, int destHeight,
Bitmap srcImg, int srcX, int srcY,
RgbProcessDelegate rgbProcessFunction)
{
var dst = destImg; //new Bitmap(destImg);
var dstData = dst.LockBits(new Rectangle(destX, destY, destWidth, destHeight), ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);
var dstStride = Math.Abs(dstData.Stride);
var dstScan0 = dstData.Scan0;
var dstBuffer = new byte[dstStride];
var src = srcImg; //new Bitmap(srcImg);
var srcData = src.LockBits(new Rectangle(srcX, srcY, destWidth, destHeight), ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);
var srcStride = Math.Abs(srcData.Stride);
var srcScan0 = srcData.Scan0;
var srcBuffer = new byte[srcStride];
for (var y = 0; y < destHeight; y++)
{
System.Runtime.InteropServices.Marshal.Copy(srcScan0 + y * srcStride, srcBuffer, 0, srcStride);
System.Runtime.InteropServices.Marshal.Copy(dstScan0 + y * dstStride, dstBuffer, 0, dstStride);
for (var x = 0; x < destWidth; x += 3)
{
rgbProcessFunction(srcBuffer[x + 2], srcBuffer[x + 1], srcBuffer[x],
ref dstBuffer[x + 2], ref dstBuffer[x + 1], ref dstBuffer[x]);
}
System.Runtime.InteropServices.Marshal.Copy(dstBuffer, 0, dstScan0 + y * dstStride, dstStride);
}
//unsafe
//{
// byte* pDst = (byte*)(void*)dstScan0;
// byte* pSrc = (byte*)(void*)srcScan0;
// for (int y = 0; y < destHeight; y++)
// {
// for (int x = 0; x < destWidth; x++)
// {
// rgbProcessFunction(
// pSrc[x * 3 + 2 + y * srcStride], pSrc[x * 3 + 1 + y * srcStride], pSrc[x * 3 + y * srcStride],
// ref pDst[x * 3 + 2 + y * dstStride], ref pDst[x * 3 + 1 + y * dstStride], ref pDst[x * 3 + y * dstStride]
// );
// }
// }
//}
src.UnlockBits(srcData);
dst.UnlockBits(dstData);
return dst;
}