public void Save(string filename, ImageCodecInfo encoder, EncoderParameters?encoderParams)
{
if (filename == null)
{
throw new ArgumentNullException(nameof(filename));
}
ThrowIfDirectoryDoesntExist(filename);
int st;
Guid guid = encoder.Clsid;
if (encoderParams == null)
{
st = Gdip.GdipSaveImageToFile(nativeImage, filename, ref guid, IntPtr.Zero);
}
else
{
IntPtr nativeEncoderParams = encoderParams.ConvertToMemory();
st = Gdip.GdipSaveImageToFile(nativeImage, filename, ref guid, nativeEncoderParams);
Marshal.FreeHGlobal(nativeEncoderParams);
}
Gdip.CheckStatus(st);
}
public void Save(Stream stream, ImageCodecInfo encoder, EncoderParameters?encoderParams)
{
int st;
IntPtr nativeEncoderParams;
Guid guid = encoder.Clsid;
if (encoderParams == null)
{
nativeEncoderParams = IntPtr.Zero;
}
else
{
nativeEncoderParams = encoderParams.ConvertToMemory();
}
try
{
GdiPlusStreamHelper sh = new GdiPlusStreamHelper(stream, seekToOrigin: false, makeSeekable: false);
st = Gdip.GdipSaveImageToDelegate_linux(nativeImage, sh.GetBytesDelegate, sh.PutBytesDelegate,
sh.SeekDelegate, sh.CloseDelegate, sh.SizeDelegate, ref guid, nativeEncoderParams);
// Since we're just passing to native code the delegates inside the wrapper, we need to keep sh alive
// to avoid the object being collected and therefore the delegates would be collected as well.
GC.KeepAlive(sh);
}
finally
{
if (nativeEncoderParams != IntPtr.Zero)
{
Marshal.FreeHGlobal(nativeEncoderParams);
}
}
Gdip.CheckStatus(st);
}
/// <summary>
/// Adds an <see cref='EncoderParameters'/> to the specified <see cref='Image'/>.
/// </summary>
public void SaveAdd(Image image, EncoderParameters?encoderParams)
{
IntPtr encoder = IntPtr.Zero;
if (image == null)
{
throw new ArgumentNullException(nameof(image));
}
if (encoderParams != null)
{
encoder = encoderParams.ConvertToMemory();
}
_rawData = null;
try
{
Gdip.CheckStatus(Gdip.GdipSaveAddImage(
new HandleRef(this, nativeImage),
new HandleRef(image, image.nativeImage),
new HandleRef(encoderParams, encoder)));
}
finally
{
if (encoder != IntPtr.Zero)
{
Marshal.FreeHGlobal(encoder);
}
}
}
/// <summary>
/// Saves this <see cref='Image'/> to the specified file in the specified format and with the specified encoder parameters.
/// </summary>
public void Save(string filename, ImageCodecInfo encoder, EncoderParameters?encoderParams)
{
if (filename == null)
{
throw new ArgumentNullException(nameof(filename));
}
if (encoder == null)
{
throw new ArgumentNullException(nameof(encoder));
}
ThrowIfDirectoryDoesntExist(filename);
IntPtr encoderParamsMemory = IntPtr.Zero;
if (encoderParams != null)
{
_rawData = null;
encoderParamsMemory = encoderParams.ConvertToMemory();
}
try
{
Guid g = encoder.Clsid;
bool saved = false;
if (_rawData != null)
{
ImageCodecInfo?rawEncoder = RawFormat.FindEncoder();
if (rawEncoder != null && rawEncoder.Clsid == g)
{
using (FileStream fs = File.OpenWrite(filename))
{
fs.Write(_rawData, 0, _rawData.Length);
saved = true;
}
}
}
if (!saved)
{
Gdip.CheckStatus(Gdip.GdipSaveImageToFile(
new HandleRef(this, nativeImage),
filename,
ref g,
new HandleRef(encoderParams, encoderParamsMemory)));
}
}
finally
{
if (encoderParamsMemory != IntPtr.Zero)
{
Marshal.FreeHGlobal(encoderParamsMemory);
}
}
}
/// <summary>
/// Saves this <see cref='Image'/> to the specified stream in the specified format.
/// </summary>
public void Save(Stream stream, ImageCodecInfo encoder, EncoderParameters?encoderParams)
{
if (stream == null)
{
throw new ArgumentNullException(nameof(stream));
}
if (encoder == null)
{
throw new ArgumentNullException(nameof(encoder));
}
IntPtr encoderParamsMemory = IntPtr.Zero;
if (encoderParams != null)
{
_rawData = null;
encoderParamsMemory = encoderParams.ConvertToMemory();
}
try
{
Guid g = encoder.Clsid;
bool saved = false;
if (_rawData != null)
{
ImageCodecInfo?rawEncoder = RawFormat.FindEncoder();
if (rawEncoder != null && rawEncoder.Clsid == g)
{
stream.Write(_rawData, 0, _rawData.Length);
saved = true;
}
}
if (!saved)
{
using DrawingCom.IStreamWrapper streamWrapper = DrawingCom.GetComWrapper(new GPStream(stream, makeSeekable: false));
unsafe
{
Gdip.CheckStatus(Gdip.GdipSaveImageToStream(
new HandleRef(this, nativeImage),
streamWrapper.Ptr,
&g,
new HandleRef(encoderParams, encoderParamsMemory)));
}
}
}
finally
{
if (encoderParamsMemory != IntPtr.Zero)
{
Marshal.FreeHGlobal(encoderParamsMemory);
}
}
}
public void Save(string filename, ImageCodecInfo encoder, EncoderParameters?encoderParams)
{
int st;
Guid guid = encoder.Clsid;
if (encoderParams == null)
{
st = Gdip.GdipSaveImageToFile(nativeImage, filename, ref guid, IntPtr.Zero);
}
else
{
IntPtr nativeEncoderParams = encoderParams.ConvertToMemory();
st = Gdip.GdipSaveImageToFile(nativeImage, filename, ref guid, nativeEncoderParams);
Marshal.FreeHGlobal(nativeEncoderParams);
}
Gdip.CheckStatus(st);
}
/// <summary>
/// Adds an <see cref='EncoderParameters'/> to this <see cref='Image'/>.
/// </summary>
public void SaveAdd(EncoderParameters?encoderParams)
{
IntPtr encoder = IntPtr.Zero;
if (encoderParams != null)
{
encoder = encoderParams.ConvertToMemory();
}
_rawData = null;
try
{
Gdip.CheckStatus(Gdip.GdipSaveAdd(new HandleRef(this, nativeImage), new HandleRef(encoderParams, encoder)));
}
finally
{
if (encoder != IntPtr.Zero)
{
Marshal.FreeHGlobal(encoder);
}
}
}
