/// <inheritdoc/>
public override void ExportPreprocessed(ContentManager manager, IContentProcessorMetadata metadata, BinaryWriter writer, PlatformNativeSurface input, Boolean delete)
{
if (!metadata.IsFile)
{
throw new NotSupportedException();
}
var imgData = File.ReadAllBytes(metadata.AssetFilePath);
writer.Write(metadata.Extension);
writer.Write(imgData.Length);
writer.Write(imgData);
var glyphs = OpenGLSpriteFontHelper.IdentifyGlyphs(input);
writer.Write(glyphs.Count());
writer.Write('?');
foreach (var glyph in glyphs)
{
writer.Write(glyph.X);
writer.Write(glyph.Y);
writer.Write(glyph.Width);
writer.Write(glyph.Height);
}
}
/// <inheritdoc/>
public override SpriteFont Process(ContentManager manager, IContentProcessorMetadata metadata, PlatformNativeSurface input)
{
var positions = OpenGLSpriteFontHelper.IdentifyGlyphs(input);
var texture = manager.Process <PlatformNativeSurface, Texture2D>(input);
var face = new SpriteFontFace(manager.Ultraviolet, texture, null, positions, null, true);
return(new SpriteFont(manager.Ultraviolet, face));
}
/// <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>
/// Exports a font face to the specified preprocessed asset stream.
/// </summary>
private static void ExportPreprocessedFace(ContentManager manager,
IContentProcessorMetadata metadata, BinaryWriter writer, SpriteFontFaceDescription description, String style, Boolean delete)
{
if (description == null)
{
writer.Write(false);
return;
}
writer.Write(true);
var textureName = ResolveDependencyAssetPath(metadata, description.Texture);
writer.Write(textureName ?? String.Empty);
var textureRegion = description.TextureRegion;
writer.Write(textureRegion.HasValue);
if (textureRegion.HasValue)
{
writer.Write(textureRegion.Value.X);
writer.Write(textureRegion.Value.Y);
writer.Write(textureRegion.Value.Width);
writer.Write(textureRegion.Value.Height);
}
if (String.IsNullOrEmpty(textureName))
{
throw new ContentLoadException(OpenGLStrings.InvalidSpriteFontTexture);
}
var glyphs = default(IEnumerable <Rectangle>);
using (var surface = manager.Import <PlatformNativeSurface>(textureName, metadata.AssetDensity))
glyphs = OpenGLSpriteFontHelper.IdentifyGlyphs(surface, textureRegion);
var substitution = description.Glyphs?.Substitution ?? '?';
writer.Write(substitution);
writer.Write(glyphs.Count());
foreach (var glyph in glyphs)
{
writer.Write(glyph.X);
writer.Write(glyph.Y);
writer.Write(glyph.Width);
writer.Write(glyph.Height);
}
var kerningDefaultAdjustment = description.Kernings?["default"] ?? 0;
var kerning = description.Kernings?.Where(x => !String.Equals(x.Key, "default", StringComparison.InvariantCulture))
.ToDictionary(x => CreateKerningPair(x.Key), x => x.Value);
writer.Write(kerningDefaultAdjustment);
writer.Write(kerning.Count);
foreach (var kvp in kerning)
{
writer.Write(kvp.Key.FirstCharacter);
writer.Write(kvp.Key.SecondCharacter);
writer.Write(kvp.Value);
}
writer.Write(description.Ascender);
writer.Write(description.Descender);
}
