/// <summary>
/// Processes the definition for a single font face.
/// </summary>
private static SpriteFontFace ProcessFace(Dictionary <String, PlatformNativeSurface> textures, ContentManager manager,
IContentProcessorMetadata metadata, SpriteFontFaceDescription description, String style, IEnumerable <CharacterRegion> characterRegions)
{
if (description == null)
{
return(null);
}
var textureName = ResolveDependencyAssetPath(metadata, description.Texture);
var textureRegion = description.TextureRegion;
if (String.IsNullOrEmpty(textureName))
{
throw new ContentLoadException(OpenGLStrings.InvalidSpriteFontTexture);
}
var faceSurface = textures[textureName];
var faceGlyphs = OpenGLSpriteFontHelper.IdentifyGlyphs(faceSurface, textureRegion);
var kerningDefaultAdjustment = description.Kernings?["default"] ?? 0;
var kerningPairs = description.Kernings?.Where(x => !String.Equals(x.Key, "default", StringComparison.InvariantCulture))
.ToDictionary(x => CreateKerningPair(x.Key), x => x.Value);
var kerning = new SpriteFontKerning()
{
DefaultAdjustment = kerningDefaultAdjustment
};
foreach (var kvp in kerningPairs)
{
kerning.Set(kvp.Key, kvp.Value);
}
var ascender = description.Ascender;
var descender = description.Descender;
var faceTexture = manager.Load <Texture2D>(textureName, metadata.AssetDensity);
var face = new SpriteFontFace(manager.Ultraviolet,
faceTexture, characterRegions, faceGlyphs, kerning, ascender, descender, description.Glyphs?.Substitution ?? '?');
return(face);
}
/// <summary>
/// Imports a font face from the specified preprocessed asset stream.
/// </summary>
private static SpriteFontFace ImportPreprocessedFace(ContentManager manager,
IContentProcessorMetadata metadata, BinaryReader reader, IEnumerable <CharacterRegion> characterRegions, Int32 fileVersion)
{
var faceExists = reader.ReadBoolean();
if (!faceExists)
{
return(null);
}
var texturePath = reader.ReadString();
var texture = manager.Load <Texture2D>(texturePath, metadata.AssetDensity);
var textureRegionSpecified = reader.ReadBoolean();
if (textureRegionSpecified)
{
reader.ReadInt32();
reader.ReadInt32();
reader.ReadInt32();
reader.ReadInt32();
}
var substitution = reader.ReadChar();
var glyphPositions = new List <Rectangle>();
var glyphCount = reader.ReadInt32();
for (int j = 0; j < glyphCount; j++)
{
var glyphX = reader.ReadInt32();
var glyphY = reader.ReadInt32();
var glyphWidth = reader.ReadInt32();
var glyphHeight = reader.ReadInt32();
glyphPositions.Add(new Rectangle(glyphX, glyphY, glyphWidth, glyphHeight));
}
var kerningPairs = new Dictionary <SpriteFontKerningPair, Int32>();
var kerningDefaultAdjustment = reader.ReadInt32();
var kerningCount = reader.ReadInt32();
for (int j = 0; j < kerningCount; j++)
{
var pairFirstChar = reader.ReadChar();
var pairSecondChar = reader.ReadChar();
var offset = reader.ReadInt32();
kerningPairs[new SpriteFontKerningPair(pairFirstChar, pairSecondChar)] = offset;
}
var kerning = new SpriteFontKerning()
{
DefaultAdjustment = kerningDefaultAdjustment
};
foreach (var kvp in kerningPairs)
{
kerning.Set(kvp.Key, kvp.Value);
}
var ascender = (fileVersion > 0) ? reader.ReadInt32() : 0;
var descender = (fileVersion > 0) ? reader.ReadInt32() : 0;
return(new SpriteFontFace(manager.Ultraviolet,
texture, characterRegions, glyphPositions, kerning, ascender, descender, substitution));
}
