internal static extern CodecError EncodeFile(
IntPtr inData,
int width,
int height,
int stride,
int channelCount,
EncodeParams parameters,
IOCallbacks callbacks);
public static extern WebPEncodingError WebPSave(
WebPWriteImage writeImageCallback,
IntPtr scan0,
int width,
int height,
int stride,
EncodeParams parameters,
[MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(MetadataCustomMarshaler))]
MetadataParams metadata,
WebPReportProgress callback);
private void Encode(EncodeParams encode, IProgressReport progress)
{
var process = new Process
{
StartInfo =
{
FileName = At9ToolPath,
Arguments = encode.BuildCommand(InFile, OutDir),
UseShellExecute = false,
RedirectStandardOutput = true
}
};
process.Start();
process.WaitForExit();
progress.ReportAdd(1);
}
/// <summary>
/// The WebP save function.
/// </summary>
/// <param name="writeImageCallback">The callback used to write the WebP image.</param>
/// <param name="input">The input surface.</param>
/// <param name="parameters">The encode parameters.</param>
/// <param name="metadata">The image metadata.</param>
/// <param name="callback">The progress callback.</param>
/// <exception cref="ArgumentNullException"><paramref name="writeImageCallback"/> is null.
/// or
/// <paramref name="input"/> is null.</exception>
/// <exception cref="OutOfMemoryException">Insufficient memory to save the image.</exception>
/// <exception cref="WebPException">The encoder returned a non-memory related error.</exception>
internal static void WebPSave(
Surface input,
Stream output,
EncodeParams parameters,
MetadataParams metadata,
WebPReportProgress callback)
{
if (input == null)
{
throw new ArgumentNullException(nameof(input));
}
StreamIOHandler handler = new StreamIOHandler(output);
WebPWriteImage writeImageCallback = handler.WriteImageCallback;
WebPEncodingError retVal = WebPEncodingError.Ok;
if (IntPtr.Size == 8)
{
retVal = WebP_64.WebPSave(writeImageCallback, input.Scan0.Pointer, input.Width, input.Height, input.Stride, parameters, metadata, callback);
}
else
{
retVal = WebP_32.WebPSave(writeImageCallback, input.Scan0.Pointer, input.Width, input.Height, input.Stride, parameters, metadata, callback);
}
GC.KeepAlive(writeImageCallback);
if (retVal != WebPEncodingError.Ok)
{
switch (retVal)
{
case WebPEncodingError.OutOfMemory:
case WebPEncodingError.BitStreamOutOfMemory:
throw new OutOfMemoryException(Resources.InsufficientMemoryOnSave);
case WebPEncodingError.FileTooBig:
throw new WebPException(Resources.EncoderFileTooBig);
case WebPEncodingError.ApiVersionMismatch:
throw new WebPException(Resources.ApiVersionMismatch);
case WebPEncodingError.MetadataEncoding:
throw new WebPException(Resources.EncoderMetadataError);
case WebPEncodingError.UserAbort:
throw new OperationCanceledException();
case WebPEncodingError.BadDimension:
throw new WebPException(Resources.InvalidImageDimensions);
case WebPEncodingError.NullParameter:
throw new WebPException(Resources.EncoderNullParameter);
case WebPEncodingError.InvalidConfiguration:
throw new WebPException(Resources.EncoderInvalidConfiguration);
case WebPEncodingError.PartitionZeroOverflow:
throw new WebPException(Resources.EncoderPartitionZeroOverflow);
case WebPEncodingError.PartitionOverflow:
throw new WebPException(Resources.EncoderPartitionOverflow);
case WebPEncodingError.BadWrite:
if (handler.WriteException != null)
{
throw new IOException(Resources.EncoderBadWrite, handler.WriteException);
}
else
{
throw new IOException(Resources.EncoderBadWrite);
}
default:
throw new WebPException(Resources.EncoderGenericError);
}
}
}
public static void EncodeFile(IntPtr inData, int width, int height, int stride, int channelCount, EncodeParams parameters, Stream output)
{
StreamIOCallbacks streamCallbacks = new StreamIOCallbacks(output);
IOCallbacks callbacks = new IOCallbacks()
{
Read = new ReadDelegate(streamCallbacks.Read),
Write = new WriteDelegate(streamCallbacks.Write),
Seek = new SeekDelegate(streamCallbacks.Seek)
};
CodecError result;
if (IntPtr.Size == 8)
{
result = IO_x64.EncodeFile(inData, width, height, stride, channelCount, parameters, callbacks);
}
else
{
result = IO_x86.EncodeFile(inData, width, height, stride, channelCount, parameters, callbacks);
}
GC.KeepAlive(callbacks);
GC.KeepAlive(streamCallbacks);
if (result != CodecError.Ok)
{
string message = string.Empty;
switch (result)
{
case CodecError.InitFailed:
message = Resources.InitFailed;
break;
case CodecError.OutOfMemory:
throw new OutOfMemoryException();
case CodecError.EncodeFailure:
message = Resources.EncodeFailure;
break;
case CodecError.ImageBufferWrite:
message = Resources.ImageBufferWrite;
break;
}
throw new FormatException(message);
}
}
/// <summary> Do "smart" encodging on a string. This means that valid HTML entities and tags,
/// Helma macros and HTML comments are passed through unescaped.
/// </summary>
public static void Encode(string str, StringBuilder ret, ArrayList allowedTags)
{
if (string.IsNullOrEmpty(str))
{
return;
}
var strLength = str.Length;
var openTags = new Stack();
EncodeParams.Init();
for (var charIndex = 0; charIndex < strLength; charIndex++)
{
var character = str[charIndex];
if (character == LesserThan)
{
if (ProcessLesserThan(str, ret, allowedTags, openTags, ref charIndex))
{
continue;
}
}
if ((EncodeParams.Linebreaks > 0 || EncodeParams.SwallowLinebreaks > 0) && !char.IsWhiteSpace(character))
{
if (!EncodeParams.InsidePreTag && EncodeParams.Linebreaks > EncodeParams.SwallowLinebreaks)
{
EncodeParams.Linebreaks -= EncodeParams.SwallowLinebreaks;
for (var lineBreakIndex = 0; lineBreakIndex < EncodeParams.Linebreaks; lineBreakIndex++)
{
ret.Append(BreakTagNewLine);
}
}
if (!EncodeParams.InsideTag)
{
EncodeParams.SwallowLinebreaks = 0;
}
EncodeParams.Linebreaks = 0;
}
ProcessTags(str, ret, character, charIndex, openTags);
}
// if tags were opened but not closed, close them.
for (var tagIndex = 0; tagIndex < openTags.Count; tagIndex++)
{
var tag = openTags.Pop();
if (!emptyTags.Contains(tag))
{
ret.AppendFormat("{0}tag{1}", PrefixCloseTag, SuffixTagEnd);
}
}
// add remaining newlines we may have collected
if (EncodeParams.Linebreaks > 0 && EncodeParams.Linebreaks > EncodeParams.SwallowLinebreaks)
{
EncodeParams.Linebreaks -= EncodeParams.SwallowLinebreaks;
for (var lineBreakIndex = 0; lineBreakIndex < EncodeParams.Linebreaks; lineBreakIndex++)
{
ret.Append(BreakTagNewLine);
}
}
}
