private void ReadPng(TImage aImage)
{
using (MemoryStream Ms = new MemoryStream())
{
aImage.Save(Ms, System.Drawing.Imaging.ImageFormat.Png);
Ms.Position = 0;
ReadPng(Ms);
}
}
private void ReadJpeg(TImage aImage, Stream aImageData)
{
MemoryStream Msi = (aImageData as MemoryStream);
if (Msi != null)
{
FImage = Msi.ToArray();
}
else
{
FImage = null;
}
FBitsPerComponent = 8;
FDecodeParmsName = null;
FDecodeParmsSMask = null;
if (aImage.PixelFormat == PixelFormat.Format8bppIndexed)
{
FColorSpace = TPdfTokens.GetString(TPdfToken.DeviceGrayName);
}
else
{
FColorSpace = TPdfTokens.GetString(TPdfToken.DeviceRGBName); //We don't care what the JPEG suggested colorspace is (in APPE/X'FFEE), we will show this on RGB. (Internally, JPEG Colorspace is always YCC)
}
FFilterName = TPdfTokens.GetString(TPdfToken.DCTDecodeName);
FImageWidth = aImage.Width;
FImageHeight = aImage.Height;
if (FImage == null)
{
using (MemoryStream Ms = new MemoryStream())
{
aImage.Save(Ms, System.Drawing.Imaging.ImageFormat.Jpeg);
FImage = Ms.ToArray();
}
}
if (FTransparentColor != ~0L)
{
int r = (int)((FTransparentColor >> 0) & 0xFF);
int g = (int)((FTransparentColor >> 8) & 0xFF);
int b = (int)((FTransparentColor >> 16) & 0xFF);
FMask =
TPdfTokens.GetString(TPdfToken.OpenArray) +
String.Format(CultureInfo.InvariantCulture, "{0} {1} {2} {3} {4} {5}", Math.Max(r - 15, 0), Math.Min(r + 15, 255), Math.Max(g - 15, 0), Math.Min(g + 15, 255), Math.Max(b - 15, 0), Math.Min(b + 15, 255)) +
TPdfTokens.GetString(TPdfToken.CloseArray);
}
}
