private static void createBrokenImage(Stream ostm, ProcessImageSettings s)
{
s = s.Clone();
if (s.Width == 0 && s.Height == 0)
{
s.Height = s.Width = 100;
}
s.Fixup(s.Width > 0 ? s.Width : s.Height, s.Height > 0 ? s.Height : s.Width);
using var bmp = new Bitmap(s.Width, s.Height, GdiPixelFormat.Format24bppRgb);
using var gfx = Graphics.FromImage(bmp);
using var pen = new Pen(Brushes.White, 1.75f);
gfx.FillRectangle(Brushes.Gainsboro, new Rectangle(0, 0, s.Width, s.Height));
gfx.SmoothingMode = SmoothingMode.AntiAlias;
gfx.PixelOffsetMode = PixelOffsetMode.Half;
gfx.CompositingQuality = CompositingQuality.GammaCorrected;
float l = 0.5f, t = 0.5f, r = s.Width - 0.5f, b = s.Height - 0.5f;
gfx.DrawLines(pen, new[] { new PointF(l, t), new PointF(r, b), new PointF(l, b), new PointF(r, t) });
gfx.DrawLines(pen, new[] { new PointF(l, b), new PointF(l, t), new PointF(r, t), new PointF(r, b) });
bmp.Save(ostm, ImageFormat.Png);
}
private static ProcessImageResult processImage(Stream istm, Stream ostm, ProcessImageSettings s)
{
using (var img = Image.FromStream(istm, true, false))
{
if (s.FrameIndex > 0)
{
var fd = img.RawFormat.Guid == ImageFormat.Gif.Guid ? FrameDimension.Time : FrameDimension.Page;
if (img.GetFrameCount(fd) > s.FrameIndex)
{
img.SelectActiveFrame(fd, s.FrameIndex);
}
else
{
throw new ArgumentOutOfRangeException("Invalid Frame Index");
}
}
img.ExifRotate();
s = s.Clone();
s.Fixup(img.Width, img.Height);
bool alpha = ((ImageFlags)img.Flags).HasFlag(ImageFlags.HasAlpha);
var mode = s.Interpolation.WeightingFunction.Support <0.1 ? InterpolationMode.NearestNeighbor :
s.Interpolation.WeightingFunction.Support <1.0 ? s.ScaleRatio> 1.0 ? InterpolationMode.Bilinear : InterpolationMode.NearestNeighbor :
s.Interpolation.WeightingFunction.Support> 1.0 ? s.ScaleRatio > 1.0 || s.Interpolation.Blur > 1.0 ? InterpolationMode.HighQualityBicubic : InterpolationMode.Bicubic :
s.ScaleRatio > 1.0 ? InterpolationMode.HighQualityBilinear : InterpolationMode.Bilinear;
var src = img;
var crop = s.Crop;
if (s.HybridScaleRatio > 1d && (mode == InterpolationMode.HighQualityBicubic || mode == InterpolationMode.HighQualityBilinear))
{
int intw = (int)Math.Ceiling(img.Width / s.HybridScaleRatio);
int inth = (int)Math.Ceiling(img.Height / s.HybridScaleRatio);
var bmp = new Bitmap(intw, inth);
using (var gfx = Graphics.FromImage(bmp))
{
gfx.PixelOffsetMode = PixelOffsetMode.Half;
gfx.CompositingMode = CompositingMode.SourceCopy;
gfx.DrawImage(img, new Rectangle(0, 0, intw, inth), crop.X, crop.Y, crop.Width, crop.Height, GraphicsUnit.Pixel);
}
img.Dispose();
src = bmp;
crop = new Rectangle(0, 0, intw, inth);
}
using (src)
using (var iat = new ImageAttributes())
using (var bmp = new Bitmap(s.Width, s.Height, alpha ? GdiPixelFormat.Format32bppArgb : GdiPixelFormat.Format24bppRgb))
using (var gfx = Graphics.FromImage(bmp))
{
iat.SetWrapMode(WrapMode.TileFlipXY);
gfx.PixelOffsetMode = PixelOffsetMode.Half;
gfx.CompositingMode = CompositingMode.SourceCopy;
gfx.InterpolationMode = mode;
if (alpha && !s.MatteColor.IsEmpty)
{
gfx.Clear(s.MatteColor);
gfx.CompositingMode = CompositingMode.SourceOver;
gfx.CompositingQuality = CompositingQuality.GammaCorrected;
}
gfx.DrawImage(src, new Rectangle(0, 0, s.Width, s.Height), crop.X, crop.Y, crop.Width, crop.Height, GraphicsUnit.Pixel, iat);
switch (s.SaveFormat)
{
case FileFormat.Bmp:
bmp.Save(ostm, ImageFormat.Bmp);
break;
case FileFormat.Tiff:
using (var encoderParams = new EncoderParameters(1))
using (var param = new EncoderParameter(Encoder.Compression, (long)EncoderValue.CompressionNone))
{
encoderParams.Param[0] = param;
bmp.Save(ostm, tiffCodec, encoderParams);
}
break;
case FileFormat.Jpeg:
using (var encoderParams = new EncoderParameters(1))
using (var param = new EncoderParameter(Encoder.Quality, s.JpegQuality))
{
encoderParams.Param[0] = param;
bmp.Save(ostm, jpegCodec, encoderParams);
}
break;
default:
if (s.IndexedColor)
{
bmp.Save(ostm, ImageFormat.Gif);
}
else
{
bmp.Save(ostm, ImageFormat.Png);
}
break;
}
}
}
return(new ProcessImageResult {
Settings = s, Stats = Enumerable.Empty <PixelSourceStats>()
});
}
private static ProcessImageResult processImage(Stream istm, Stream ostm, ProcessImageSettings s)
{
using var img = Image.FromStream(istm, s.ColorProfileMode != ColorProfileMode.Ignore, false);
if (s.FrameIndex > 0)
{
var fd = img.RawFormat.Guid == ImageFormat.Gif.Guid ? FrameDimension.Time : FrameDimension.Page;
if (img.GetFrameCount(fd) > s.FrameIndex)
{
img.SelectActiveFrame(fd, s.FrameIndex);
}
else
{
throw new ArgumentOutOfRangeException(nameof(s), "Invalid Frame Index");
}
}
if (s.OrientationMode == OrientationMode.Normalize)
{
img.ExifRotate();
}
s = s.Clone();
s.Fixup(img.Width, img.Height);
var usedSettings = s.Clone();
bool alpha = ((ImageFlags)img.Flags).HasFlag(ImageFlags.HasAlpha);
var pixelFormat = alpha && s.MatteColor.IsTransparent() ? GdiPixelFormat.Format32bppArgb : GdiPixelFormat.Format24bppRgb;
var mode = s.Interpolation.WeightingFunction.Support <0.1 ? InterpolationMode.NearestNeighbor :
s.Interpolation.WeightingFunction.Support <1.0 ? s.ScaleRatio> 1.0 ? InterpolationMode.Bilinear : InterpolationMode.NearestNeighbor :
s.Interpolation.WeightingFunction.Support> 1.0 ? s.ScaleRatio > 1.0 || s.Interpolation.Blur > 1.0 ? InterpolationMode.HighQualityBicubic : InterpolationMode.Bicubic :
s.ScaleRatio > 1.0 ? InterpolationMode.HighQualityBilinear : InterpolationMode.Bilinear;
using var src = img.HybridScale(s, mode);
using var iat = new ImageAttributes();
using var bmp = new Bitmap(s.Width, s.Height, pixelFormat);
using var gfx = Graphics.FromImage(bmp);
iat.SetWrapMode(WrapMode.TileFlipXY);
gfx.PixelOffsetMode = PixelOffsetMode.Half;
gfx.CompositingMode = CompositingMode.SourceCopy;
gfx.InterpolationMode = mode;
if ((alpha || s.InnerSize != s.OuterSize) && !s.MatteColor.IsEmpty)
{
gfx.Clear(s.MatteColor);
gfx.CompositingMode = CompositingMode.SourceOver;
gfx.CompositingQuality = CompositingQuality.GammaCorrected;
}
gfx.DrawImage(src, s.InnerRect, s.Crop.X, s.Crop.Y, s.Crop.Width, s.Crop.Height, GraphicsUnit.Pixel, iat);
switch (s.SaveFormat)
{
case FileFormat.Bmp:
bmp.Save(ostm, ImageFormat.Bmp);
break;
case FileFormat.Tiff:
using (var encoderParams = new EncoderParameters(1))
using (var param = new EncoderParameter(Encoder.Compression, (long)EncoderValue.CompressionNone))
{
encoderParams.Param[0] = param;
bmp.Save(ostm, tiffCodec, encoderParams);
}
break;
case FileFormat.Jpeg:
using (var encoderParams = new EncoderParameters(1))
using (var param = new EncoderParameter(Encoder.Quality, s.JpegQuality))
{
encoderParams.Param[0] = param;
bmp.Save(ostm, jpegCodec, encoderParams);
}
break;
default:
if (s.IndexedColor)
{
bmp.Save(ostm, ImageFormat.Gif);
}
else
{
bmp.Save(ostm, ImageFormat.Png);
}
break;
}
return(new ProcessImageResult(usedSettings, Enumerable.Empty <PixelSourceStats>()));
}
public WicProcessingContext(ProcessImageSettings settings)
{
Settings = settings.Clone();
}
