private void ApplyFilters(SKPaint paint, RasterizeLayerStyleDefinition layerStyleDef, RasterizeLayerStyle layerStyle) { paint.ColorFilter = SKColorFilter.CreateBlendMode(layerStyleDef.Color, SKBlendMode.SrcIn); if (layerStyleDef.IsBlurEnabled && layerStyleDef.IsDilateEnabled) { paint.ImageFilter = SKImageFilter.CreateBlur(layerStyle.Blur.X, layerStyle.Blur.Y, SKImageFilter.CreateDilate((int)layerStyle.Dilate.X, (int)layerStyle.Dilate.Y)); } else if (layerStyleDef.IsBlurEnabled) { paint.ImageFilter = SKImageFilter.CreateBlur(layerStyle.Blur.X, layerStyle.Blur.Y); } else if (layerStyleDef.IsDilateEnabled) { paint.ImageFilter = SKImageFilter.CreateDilate((int)layerStyle.Dilate.X, (int)layerStyle.Dilate.Y); } }
/// <summary> /// Renders a given layer on a surface and caches it. /// </summary> /// <param name="setting">Display setting</param> /// <param name="layer">Which layer is it we're rendering</param> /// <param name="layerStyleDef">Style definition</param> /// <param name="layerStyle">Style to render</param> /// <param name="segments">Which segments to render</param> /// <param name="skewAngle">How much to skew</param> public void RasterizeLayer(DisplaySetting setting, RasterizeLayer layer, RasterizeLayerStyleDefinition layerStyleDef, RasterizeLayerStyle layerStyle, IEnumerable <int> segments, float skewAngle) { var source = _svgs[setting.SegmentType][setting.StyleDefinition.SegmentWeight]; //Logger.Info("Rasterizing {0} segments of layer {1} on display {2} segment size = {3}x{4}", setting.SegmentType, layer, setting.Display, setting.Dim.SvgWidth, setting.Dim.SvgHeight); using (var paint = new SKPaint()) { ApplyFilters(paint, layerStyleDef, layerStyle); foreach (var i in segments) { var initialKey = new RasterCacheKey(InitialCache, layer, setting.SegmentType, setting.StyleDefinition.SegmentWeight, i); var cacheKey = new RasterCacheKey(setting.Display, layer, setting.SegmentType, setting.StyleDefinition.SegmentWeight, i); if (!_rasterCache.ContainsKey(initialKey)) { _rasterCache[initialKey] = RasterizeSegment(source[i].Picture, setting.Dim, skewAngle, paint); } else { if (_rasterCache.ContainsKey(cacheKey)) { _rasterCache[cacheKey]?.Dispose(); } _rasterCache[cacheKey] = RasterizeSegment(source[i].Picture, setting.Dim, skewAngle, paint); } } } }