private static PageImage CreateFaxTiffFastTrack(PageImage page, PaperSize paperSize, FaxQuality faxQuality, ImageOperationResult result)
{
PageInfo inf = null;
PageImage ret = new PageImage();
Bitmap src = null;
Bitmap destroy = null;
src = BitmapHelper.CreateCopy1BppIndexed(page._sourceBmp);
inf = new PageInfo(src);
//If the size is not right copy to other size (padding or reducing)
if (inf.GetStandardPaperSize != paperSize)
{
if (inf.GetStandardPaperSize == PaperSize.Legal && paperSize == PaperSize.Letter)
{
destroy = src;
src = BitmapHelper.CreateCopyFaxGeometry(src, faxQuality, paperSize, ImageUtility.InterpolationMode);
if (destroy != null)
{
destroy.Dispose(); destroy = null;
}
inf = new PageInfo(src);
}
if (inf.GetStandardPaperSize == PaperSize.Letter && paperSize == PaperSize.Legal)
{
destroy = src;
src = BitmapHelper.CreateCopyFaxGeometryPadding(src, faxQuality, paperSize);
if (destroy != null)
{
destroy.Dispose(); destroy = null;
}
inf = new PageInfo(src);
}
}
//Make sure its 1bpp
if (inf.PixelFormat != PixelFormat.Format1bppIndexed)
{
destroy = src;
src = BitmapHelper.CreateCopy1BppIndexed(src);
if (destroy != null)
{
destroy.Dispose(); destroy = null;
}
inf = new PageInfo(src);
}
//Reduce or increase quality as needed
if (inf.GetStandardFaxQuality != faxQuality)
{
if (inf.GetStandardFaxQuality == FaxQuality.Fine && faxQuality == FaxQuality.Normal)
{
destroy = src;
src = BitmapHelper.ConvertTiffHiToTiffLow(src, ImageUtility.HighToLowScaleMethod);
if (destroy != null)
{
destroy.Dispose(); destroy = null;
}
inf = new PageInfo(src);
}
if (inf.GetStandardFaxQuality == FaxQuality.Normal && faxQuality == FaxQuality.Fine)
{
destroy = src;
src = BitmapHelper.ConvertTiffLowToTiffHi(src);
if (destroy != null)
{
destroy.Dispose(); destroy = null;
}
inf = new PageInfo(src);
}
}
ret._pageInfo = null;
ret._sourceBmp = src;
return(ret);
}
private static void ConvertPixelFormatTo1bppIndexed(PageImage source, PageImage destination)
{
// Lock source bitmap in memory
BitmapData sourceData = source.Bitmap.LockBits(new Rectangle(0, 0, source.Bitmap.Width, source.Bitmap.Height), ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
// Copy image data to binary array
int imageSize = sourceData.Stride * sourceData.Height;
byte[] sourceBuffer = new byte[imageSize];
Marshal.Copy(sourceData.Scan0, sourceBuffer, 0, imageSize);
// Unlock source bitmap
source.Bitmap.UnlockBits(sourceData);
// Lock destination bitmap in memory
BitmapData destinationData = destination.Bitmap.LockBits(new Rectangle(0, 0, destination.Bitmap.Width, destination.Bitmap.Height), ImageLockMode.WriteOnly, PixelFormat.Format1bppIndexed);
// Create destination buffer
imageSize = destinationData.Stride * destinationData.Height;
byte[] destinationBuffer = new byte[imageSize];
int sourceIndex = 0;
int destinationIndex = 0;
int pixelTotal = 0;
byte destinationValue = 0;
int pixelValue = 128;
int height = source.Bitmap.Height;
int width = source.Bitmap.Width;
int threshold = 500;
// Iterate lines
for (int y = 0; y < height; y++)
{
sourceIndex = y * sourceData.Stride;
destinationIndex = y * destinationData.Stride;
destinationValue = 0;
pixelValue = 128;
// Iterate pixels
for (int x = 0; x < width; x++)
{
// Compute pixel brightness (i.e. total of Red, Green, and Blue values)
pixelTotal = sourceBuffer[sourceIndex + 1] + sourceBuffer[sourceIndex + 2] + sourceBuffer[sourceIndex + 3];
if (pixelTotal > threshold)
{
destinationValue += (byte)pixelValue;
}
if (pixelValue == 1)
{
destinationBuffer[destinationIndex] = destinationValue;
destinationIndex++;
destinationValue = 0;
pixelValue = 128;
}
else
{
pixelValue >>= 1;
}
sourceIndex += 4;
}
if (pixelValue != 128)
{
destinationBuffer[destinationIndex] = destinationValue;
}
}
// Copy binary image data to destination bitmap
Marshal.Copy(destinationBuffer, 0, destinationData.Scan0, imageSize);
// Unlock destination bitmap
destination.Bitmap.UnlockBits(destinationData);
}