public static void AddInternalFormatConverter(PipelineContext ctx, PixelValueEncoding enc = PixelValueEncoding.Unspecified, bool allow96bppFloat = false)
{
var ifmt = ctx.Source.Format;
var ofmt = ifmt;
bool linear = enc == PixelValueEncoding.Unspecified ? ctx.Settings.BlendingMode == GammaMode.Linear : enc == PixelValueEncoding.Linear;
if (allow96bppFloat && MagicImageProcessor.EnableSimd && ifmt == PixelFormat.Bgr24Bpp)
{
ofmt = linear ? PixelFormat.Bgr96BppLinearFloat : PixelFormat.Bgr96BppFloat;
}
else if (linear && (MagicImageProcessor.EnableSimd ? internalFormatMapLinearSimd : internalFormatMapLinear).TryGetValue(ifmt, out var ofmtl))
{
ofmt = ofmtl;
}
else if (MagicImageProcessor.EnableSimd && internalFormatMapSimd.TryGetValue(ifmt, out var ofmts))
{
ofmt = ofmts;
}
bool videoLevels = ifmt == PixelFormat.Y8Bpp && ctx.ImageFrame is IYccImageFrame frame && !frame.IsFullRange;
if (ofmt == ifmt && !videoLevels)
{
return;
}
bool forceSrgb = (ofmt == PixelFormat.Y32BppLinearFloat || ofmt == PixelFormat.Y16BppLinearUQ15) && ctx.SourceColorProfile != ColorProfile.sRGB;
ctx.Source = ctx.AddDispose(new ConversionTransform(ctx.Source, forceSrgb ? ColorProfile.sRGB : ctx.SourceColorProfile, forceSrgb ? ColorProfile.sRGB : ctx.DestColorProfile, ofmt, videoLevels));
}
private PixelFormat(Guid guid, string name, int bpp, int channels, PixelNumericRepresentation numericRepresentation,
PixelColorRepresentation colorRepresentation = PixelColorRepresentation.Unspecified, PixelAlphaRepresentation alphaRepresentation = PixelAlphaRepresentation.None,
PixelValueEncoding encoding = PixelValueEncoding.Unspecified, bool isWic = false
)
{
FormatGuid = guid;
Name = name;
IsWicNative = isWic;
BitsPerPixel = bpp;
ChannelCount = channels;
NumericRepresentation = numericRepresentation;
ColorRepresentation = colorRepresentation;
AlphaRepresentation = alphaRepresentation;
Encoding = encoding;
}