private bool SaveAsImageFreeImage(
Stream stream, PixFileFormat format,
PixSaveOptions options, int qualityLevel)
{
var dib = ToFiBitMap();
var flags = FREE_IMAGE_SAVE_FLAGS.DEFAULT;
switch (format)
{
case PixFileFormat.Jpeg: if (qualityLevel > 0)
{
flags = (FREE_IMAGE_SAVE_FLAGS)qualityLevel;
}
break;
case PixFileFormat.Exr: if (PixFormat.Type == typeof(float))
{
flags |= FREE_IMAGE_SAVE_FLAGS.EXR_FLOAT;
}
break;
default: break;
}
var result = FreeImage.SaveToStream(dib, stream, s_fifImageFormatMap[format], flags);
FreeImage.UnloadEx(ref dib);
return(result);
}
protected bool SaveAsImageSystem(
Stream stream, PixFileFormat fileFormat,
PixSaveOptions options, int qualityLevel)
{
if (Format == Col.Format.BW)
{
return(false);
}
BitmapEncoder encoder = null;
switch (fileFormat)
{
case PixFileFormat.Jpeg:
encoder = qualityLevel > 0
? new JpegBitmapEncoder {
QualityLevel = qualityLevel
}
: new JpegBitmapEncoder();
break;
default:
encoder = GetEncoder(fileFormat);
if (encoder == null)
{
return(false);
}
break;
}
encoder.Frames.Add(ToBitmapFrame());
encoder.Save(stream);
stream.Flush();
return(true);
}
protected static BitmapEncoder GetEncoder(PixFileFormat format)
{
Func <BitmapEncoder> encCreator;
if (s_FormatEncoder.TryGetValue(format, out encCreator))
{
return(encCreator());
}
return(null);
}
private bool SaveAsImageDevil(
string file, PixFileFormat format,
PixSaveOptions options, int qualityLevel)
{
Devil.ImageType imageType;
if (!s_fileFormats.TryGetValue(format, out imageType))
{
return(false);
}
return(SaveDevIL(() => IL.Save(imageType, file), qualityLevel));
}
/// <summary>
/// Save image to stream via devil.
/// </summary>
/// <returns>True if the file was successfully saved.</returns>
internal static bool SaveAsImageDevil(
this PixImage image,
Stream stream, PixFileFormat format,
PixSaveOptions options, int qualityLevel)
{
Devil.ImageType imageType;
if (!s_fileFormats.TryGetValue(format, out imageType))
{
return(false);
}
return(image.SaveDevIL(() => IL.SaveStream(imageType, stream), qualityLevel));
}
internal static bool SaveAsImageDevil(
this PixImage image,
string file, PixFileFormat format,
PixSaveOptions options, int qualityLevel)
{
Devil.ImageType imageType;
if (!s_fileFormats.TryGetValue(format, out imageType))
{
return(false);
}
lock (s_devilLock)
{
return(image.SaveDevIL(() => IL.Save(imageType, file), qualityLevel));
}
}
/// <summary>
/// Save image to stream via System.Drawing.
/// </summary>
/// <returns>True if the file was successfully saved.</returns>
private bool SaveAsImageBitmap(
Stream stream, PixFileFormat format,
PixSaveOptions options, int qualityLevel)
{
try
{
var self = this.ToCanonicalDenseLayout();
var size = self.Size;
var pixelFormat = s_pixelFormats[self.PixFormat];
var imageFormat = s_imageFormats[format];
using (var bmp = new Bitmap(size.X, size.Y, pixelFormat))
{
var bdata = bmp.LockBits(new Rectangle(0, 0, size.X, size.Y), ImageLockMode.ReadOnly, pixelFormat);
self.Data.CopyTo(bdata.Scan0);
bmp.UnlockBits(bdata);
if (qualityLevel >= 0)
{
var codec = s_imageCodecInfos[imageFormat.Guid];
var parameters = new EncoderParameters(1);
parameters.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, (long)qualityLevel);
bmp.Save(stream, codec, parameters);
parameters.Dispose();
}
else
{
bmp.Save(stream, imageFormat);
}
}
return(true);
}
catch (Exception)
{
return(false);
}
}
