public static void AddColorspaceConverter(PipelineContext ctx)
{
if (ctx.SourceColorProfile is null || ctx.DestColorProfile is null || ctx.SourceColorProfile == ctx.DestColorProfile)
{
return;
}
if (ctx.SourceColorProfile.ProfileType > ColorProfileType.Matrix || ctx.DestColorProfile.ProfileType > ColorProfileType.Matrix)
{
AddExternalFormatConverter(ctx);
ctx.WicContext.SourceColorContext ??= ctx.WicContext.AddRef(WicColorProfile.CreateContextFromProfile(ctx.SourceColorProfile.ProfileBytes));
ctx.WicContext.DestColorContext ??= ctx.WicContext.AddRef(WicColorProfile.CreateContextFromProfile(ctx.DestColorProfile.ProfileBytes));
WicTransforms.AddColorspaceConverter(ctx);
return;
}
AddInternalFormatConverter(ctx, PixelValueEncoding.Linear);
if (ctx.Source.Format.ColorRepresentation == PixelColorRepresentation.Bgr && ctx.SourceColorProfile is MatrixProfile srcProf && ctx.DestColorProfile is MatrixProfile dstProf)
{
var matrix = srcProf.Matrix * dstProf.InverseMatrix;
if (matrix != default && !matrix.IsIdentity)
{
ctx.Source = new ColorMatrixTransformInternal(ctx.Source, matrix);
}
}
}
internal ProcessingPipeline(PipelineContext ctx)
{
Context = ctx;
source = new Lazy <IPixelSource>(() => {
MagicTransforms.AddExternalFormatConverter(Context);
WicTransforms.AddPixelFormatConverter(Context, false);
return(Context.Source.AsIPixelSource());
});
}
