private void LoadAlphaNumeric(SegmentWeight weight)
{
var prefix = "LibDmd.Output.Virtual.AlphaNumeric.alphanum_" + weight.ToString().ToLower() + ".";
var segmentFileNames = new[] {
$"{prefix}00-top.svg",
$"{prefix}01-top-right.svg",
$"{prefix}02-bottom-right.svg",
$"{prefix}03-bottom.svg",
$"{prefix}04-bottom-left.svg",
$"{prefix}05-top-left.svg",
$"{prefix}06-middle-left.svg",
$"{prefix}07-comma.svg",
$"{prefix}08-diag-top-left.svg",
$"{prefix}09-center-top.svg",
$"{prefix}10-diag-top-right.svg",
$"{prefix}11-middle-right.svg",
$"{prefix}12-diag-bottom-right.svg",
$"{prefix}13-center-bottom.svg",
$"{prefix}14-diag-bottom-left.svg",
$"{prefix}15-dot.svg",
};
Logger.Info("Loading alphanumeric SVGs...");
Load(segmentFileNames, $"{prefix}full.svg", SegmentType.Alphanumeric, weight);
}
public RasterCacheKey(int display, RasterizeLayer layer, SegmentType type, SegmentWeight weight, int segment)
{
Display = display;
Layer = layer;
Type = type;
Weight = weight;
Segment = segment;
}
private void Load(string[] fileNames, string pathToFull, SegmentType type, SegmentWeight weight)
{
for (var i = 0; i < fileNames.Length; i++)
{
var svg = new SKSvg();
svg.Load(_assembly.GetManifestResourceStream(fileNames[i]));
_svgs[type][weight].Add(i, svg);
}
var full = new SKSvg();
full.Load(_assembly.GetManifestResourceStream(pathToFull));
_svgs[type][weight].Add(FullSegment, full);
Loaded[type][weight].OnNext(Unit.Default);
Loaded[type][weight] = new BehaviorSubject <Unit>(Unit.Default);
}
private void LoadNumeric8(SegmentWeight weight)
{
var prefix = "LibDmd.Output.Virtual.AlphaNumeric.numeric_" + weight.ToString().ToLower() + ".";
var segmentFileNames = new[] {
$"{prefix}00-top.svg",
$"{prefix}01-top-right.svg",
$"{prefix}02-bottom-right.svg",
$"{prefix}03-bottom.svg",
$"{prefix}04-bottom-left.svg",
$"{prefix}05-top-left.svg",
$"{prefix}06-middle.svg",
$"{prefix}07-comma.svg",
};
Logger.Info("Loading numeric (8) SVGs...");
Load(segmentFileNames, $"{prefix}full.svg", SegmentType.Numeric8, weight);
}
/// <summary>
/// Returns the size of the SVG of a given segment type.
/// </summary>
/// <param name="type">Segment type</param>
/// <param name="weight">Segment weight</param>
/// <returns>Size of the SVG</returns>
public SKRect GetSvgSize(SegmentType type, SegmentWeight weight)
{
return(_svgs[type][weight][FullSegment].Picture.CullRect);
}
/// <summary>
/// Returns a surface of a segment that was previously generated.
/// </summary>
///
/// <remarks>
/// Note that in order to avoid multiple rasterization for each display
/// on startup, we initially use only one cache. Then, when displays
/// get individually resized, each display has its own cache.
/// </remarks>
/// <param name="display">Display number</param>
/// <param name="layer">Which layer</param>
/// <param name="type">Which segment type</param>
/// <param name="weight">SegmentWeight</param>
/// <param name="segment">Which segment</param>
/// <returns>Rasterized surface of null if rasterization is unavailable</returns>
public SKSurface GetRasterized(int display, RasterizeLayer layer, SegmentType type, SegmentWeight weight, int segment)
{
// do we have an individual cache for that display already?
var displayKey = new RasterCacheKey(display, layer, type, weight, segment);
if (_rasterCache.ContainsKey(displayKey))
{
return(_rasterCache[displayKey]);
}
// fallback on initial cache
var initialKey = new RasterCacheKey(InitialCache, layer, type, weight, segment);
if (_rasterCache.ContainsKey(initialKey))
{
return(_rasterCache[initialKey]);
}
return(null);
}