public static void SavePngFromMemory(PixelBuffer[] pixelBuffers, int count, ImageDescription description, Stream imageStream)
{
WICHelper.SavePngToWICMemory(pixelBuffers, count, description, imageStream);
}
public static void SaveWmpFromMemory(PixelBuffer[] pixelBuffers, int count, ImageDescription description, Stream imageStream)
{
throw new NotImplementedException();
}
internal static void SaveWmpToWICMemory(PixelBuffer[] pixelBuffers, int count, ImageDescription description, Stream imageStream)
{
SaveToWICMemory(pixelBuffers, 1, WICFlags.None, ImageFileType.Wmp, imageStream);
}
internal static void SaveTiffToWICMemory(PixelBuffer[] pixelBuffers, int count, ImageDescription description, Stream imageStream)
{
SaveToWICMemory(pixelBuffers, count, WICFlags.AllFrames, ImageFileType.Tiff, imageStream);
}
//-------------------------------------------------------------------------------------
// Decodes an image array, resizing/format converting as needed
//-------------------------------------------------------------------------------------
private static Image DecodeMultiframe(WICFlags flags, ImageDescription metadata, BitmapDecoder decoder)
{
var image = Image.New(metadata);
Guid sourceGuid;
if (!ToWIC(metadata.Format, out sourceGuid))
{
return(null);
}
for (int index = 0; index < metadata.ArraySize; ++index)
{
var pixelBuffer = image.PixelBuffer[index, 0];
using (var frame = decoder.GetFrame(index))
{
var pfGuid = frame.PixelFormat;
var size = frame.Size;
if (pfGuid == sourceGuid)
{
if (size.Width == metadata.Width && size.Height == metadata.Height)
{
// This frame does not need resized or format converted, just copy...
frame.CopyPixels(pixelBuffer.RowStride, pixelBuffer.DataPointer, pixelBuffer.BufferStride);
}
else
{
// This frame needs resizing, but not format converted
using (var scaler = new BitmapScaler(Factory))
{
scaler.Initialize(frame, metadata.Width, metadata.Height, GetWICInterp(flags));
scaler.CopyPixels(pixelBuffer.RowStride, pixelBuffer.DataPointer, pixelBuffer.BufferStride);
}
}
}
else
{
// This frame required format conversion
using (var converter = new FormatConverter(Factory))
{
converter.Initialize(frame, pfGuid, GetWICDither(flags), null, 0, BitmapPaletteType.Custom);
if (size.Width == metadata.Width && size.Height == metadata.Height)
{
converter.CopyPixels(pixelBuffer.RowStride, pixelBuffer.DataPointer, pixelBuffer.BufferStride);
}
else
{
// This frame needs resizing, but not format converted
using (var scaler = new BitmapScaler(Factory))
{
scaler.Initialize(frame, metadata.Width, metadata.Height, GetWICInterp(flags));
scaler.CopyPixels(pixelBuffer.RowStride, pixelBuffer.DataPointer, pixelBuffer.BufferStride);
}
}
}
}
}
}
return(image);
}
public static void SavePngFromMemory(PixelBuffer[] pixelBuffers, int count, ImageDescription description, Stream imageStream)
{
SaveFromMemory(pixelBuffers, count, description, imageStream, ImageFormat.Png);
}
public static void SaveJpgFromMemory(PixelBuffer[] pixelBuffers, int count, ImageDescription description, Stream imageStream)
{
SaveFromMemory(pixelBuffers, count, description, imageStream, Bitmap.CompressFormat.Jpeg);
}
