Filter › Dither, as Compositor 1.3.3 (12.15)

src/Document/Filters.cpp

@@ -27,6 +27,7 @@ QString rawValue(FilterKind kind)
     case FilterKind::addNoise: return QStringLiteral("Add Noise");
     case FilterKind::vignette: return QStringLiteral("Vignette");
     case FilterKind::bloomGlow: return QStringLiteral("Bloom / Glow");
+    case FilterKind::dither: return QStringLiteral("Dither");
     case FilterKind::tonalContrast: return QStringLiteral("Tonal Contrast");
     case FilterKind::lensCorrection: return QStringLiteral("Lens Correction");
     case FilterKind::cameraRaw: return QStringLiteral("Camera Raw Filter");
@@ -86,6 +87,7 @@ FilterSettings FilterSettings::normalized() const
     result.exposure = exposure.normalized();
     result.gradientMap = gradientMap.normalized();
     result.grain = grain.normalized();
+    result.dither = dither.normalized();
     result.cameraRaw = cameraRaw.normalized();
     return result;
 }
@@ -156,6 +158,7 @@ QImage PixelFilter::run(const FilterJob &job)
         break;
     // Grain sits in layer pixels; the job's seed patterns it.
     case FilterKind::grain: image = settings.grain.apply(job.image, QPointF(), 1 / job.scale, job.seed); break;
+    case FilterKind::dither: image = settings.dither.apply(job.image); break;
     case FilterKind::removeBackground: image = SubjectRemoval::run(job.image, settings); break;
     case FilterKind::contentAwareFill: image = ContentFill::run(job); break;
     // Unclamped: a blur spreads into the room made for it.
@@ -271,8 +274,9 @@ void FilterEdit::prepare(const ImportedImage &source, const LayerTransform &plac
     const QSize size = source.size();
     ++previewSourceVersion;
     mapping = BrushRaster::pixelToDocument(placed, size.width(), size.height());
-    // Noise and grain preview whole: enlarged, grain looks coarse.
-    const bool whole = kind == FilterKind::addNoise || kind == FilterKind::grain || kind == FilterKind::contentAwareFill || kind == FilterKind::removeBackground;
+    // Noise, grain and dither preview whole: enlarged, they look coarse.
+    const bool whole = kind == FilterKind::addNoise || kind == FilterKind::grain || kind == FilterKind::dither || kind == FilterKind::contentAwareFill
+        || kind == FilterKind::removeBackground;
     const double factor = whole ? 1 : std::min(1.0, previewLimit / std::max(size.width(), size.height()));
     if (!(factor < 1)) {
         previewSource = source.image();