internal override void FinalSave(
Document input,
Stream output,
Surface scratchSurface,
int ditherLevel,
SavableBitDepths bitDepth,
PropertyBasedSaveConfigToken token,
ProgressEventHandler progressCallback)
{
// finally, do the save.
if (bitDepth == SavableBitDepths.Rgb24)
{
// In order to save memory, we 'squish' the 32-bit bitmap down to 24-bit in-place
// instead of allocating a new bitmap and copying it over.
SquishSurfaceTo24Bpp(scratchSurface);
ImageCodecInfo icf = GdiPlusFileType.GetImageCodecInfo(ImageFormat.Bmp);
EncoderParameters parms = new EncoderParameters(1);
EncoderParameter parm = new EncoderParameter(Encoder.ColorDepth, 24);
parms.Param[0] = parm;
using (Bitmap bitmap = CreateAliased24BppBitmap(scratchSurface))
{
GdiPlusFileType.LoadProperties(bitmap, input);
bitmap.Save(output, icf, parms);
}
}
else if (bitDepth == SavableBitDepths.Rgb8)
{
using (Bitmap quantized = Quantize(scratchSurface, ditherLevel, 256, false, progressCallback))
{
ImageCodecInfo icf = GdiPlusFileType.GetImageCodecInfo(ImageFormat.Bmp);
EncoderParameters parms = new EncoderParameters(1);
EncoderParameter parm = new EncoderParameter(Encoder.ColorDepth, 8);
parms.Param[0] = parm;
GdiPlusFileType.LoadProperties(quantized, input);
quantized.Save(output, icf, parms);
}
}
else
{
throw new InvalidEnumArgumentException("bitDepth", (int)bitDepth, typeof(SavableBitDepths));
}
}
protected override void OnSaveT(Document input, Stream output, PropertyBasedSaveConfigToken token, Surface scratchSurface, ProgressEventHandler progressCallback)
{
int quality = token.GetProperty <Int32Property>(PropertyNames.Quality).Value;
ImageCodecInfo icf = GdiPlusFileType.GetImageCodecInfo(ImageFormat.Jpeg);
EncoderParameters parms = new EncoderParameters(1);
EncoderParameter parm = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, quality);
parms.Param[0] = parm;
scratchSurface.Clear(ColorBgra.White);
using (RenderArgs ra = new RenderArgs(scratchSurface))
{
input.Render(ra, false);
}
using (Bitmap bitmap = scratchSurface.CreateAliasedBitmap())
{
GdiPlusFileType.LoadProperties(bitmap, input);
bitmap.Save(output, icf, parms);
}
}
protected override void OnSave(Document input, Stream output, SaveConfigToken token, Surface scratchSurface, ProgressEventHandler callback)
{
GdiPlusFileType.Save(input, output, scratchSurface, this.ImageFormat, callback);
}
