private Bitmap GetGlyphBitmap(Image fontImage, XfCharMap charMap, XfCharSizeInfo charSizeInfo)
{
// Destination points
var destPoints = new[]
{
new PointF(charSizeInfo.offsetX, charSizeInfo.offsetY),
new PointF(charSizeInfo.glyphWidth + charSizeInfo.offsetX, charSizeInfo.offsetY),
new PointF(charSizeInfo.offsetX, charSizeInfo.glyphHeight + charSizeInfo.offsetY)
};
// Source rectangle
var srcRect = new RectangleF(
charMap.imageInformation.imageOffsetX,
charMap.imageInformation.imageOffsetY,
charSizeInfo.glyphWidth,
charSizeInfo.glyphHeight);
// Color matrix
var imageAttributes = new ImageAttributes();
imageAttributes.SetColorMatrix(_colorMatrices[charMap.imageInformation.colorChannel]);
// Draw the glyph from the master texture
var glyph = new Bitmap(
Math.Max(1, Math.Max(charMap.charInformation.charWidth, charSizeInfo.glyphWidth + charSizeInfo.offsetX)),
Math.Max(1, charSizeInfo.glyphHeight + charSizeInfo.offsetY));
var gfx = Graphics.FromImage(glyph);
gfx.DrawImage(fontImage, destPoints, srcRect, GraphicsUnit.Pixel, imageAttributes);
return(glyph);
}
public (Stream fontStream, Image fontImage) Save(List <CharacterInfo> characterInfos, Size imageSize)
{
// Generating font textures
var adjustedGlyphs = FontMeasurement.MeasureWhiteSpace(characterInfos.Select(x => (Bitmap)x.Glyph)).ToList();
// Adjust image size for at least the biggest letter
var height = Math.Max(adjustedGlyphs.Max(x => x.WhiteSpaceAdjustment.GlyphSize.Height), imageSize.Height);
var width = Math.Max(adjustedGlyphs.Max(x => x.WhiteSpaceAdjustment.GlyphSize.Width), imageSize.Width);
imageSize = new Size(width, height);
var generator = new FontTextureGenerator(imageSize, 0);
var textureInfos = generator.GenerateFontTextures(adjustedGlyphs, 3).ToList();
// Join important lists
var joinedCharacters = characterInfos.OrderBy(x => x.CodePoint).Join(adjustedGlyphs, c => c.Glyph, ag => ag.Glyph,
(c, ag) => new { character = c, adjustedGlyph = ag })
.Select(cag => new
{
cag.character,
cag.adjustedGlyph,
textureIndex = textureInfos.FindIndex(x => x.Glyphs.Any(y => y.Item1 == cag.adjustedGlyph.Glyph)),
texturePosition = textureInfos.SelectMany(x => x.Glyphs).FirstOrDefault(x => x.Item1 == cag.adjustedGlyph.Glyph).Item2
});
// Create character information
var charMaps = new List <(AdjustedGlyph, XfCharMap)>(adjustedGlyphs.Count);
var charSizeInfos = new List <XfCharSizeInfo>();
foreach (var joinedCharacter in joinedCharacters)
{
if (joinedCharacter.textureIndex == -1)
{
continue;
}
var charSizeInfo = new XfCharSizeInfo
{
offsetX = (sbyte)joinedCharacter.adjustedGlyph.WhiteSpaceAdjustment.GlyphPosition.X,
offsetY = (sbyte)joinedCharacter.adjustedGlyph.WhiteSpaceAdjustment.GlyphPosition.Y,
glyphWidth = (byte)joinedCharacter.adjustedGlyph.WhiteSpaceAdjustment.GlyphSize.Width,
glyphHeight = (byte)joinedCharacter.adjustedGlyph.WhiteSpaceAdjustment.GlyphSize.Height
};
if (!charSizeInfos.Contains(charSizeInfo))
{
charSizeInfos.Add(charSizeInfo);
}
// Only used for Time Travelers
var codePoint = ConvertChar(joinedCharacter.character.CodePoint);
//var codePoint = joinedCharacter.character.CodePoint;
var charInformation = new XfCharInformation
{
charSizeInfoIndex = charSizeInfos.IndexOf(charSizeInfo),
charWidth = char.IsWhiteSpace((char)codePoint) ?
joinedCharacter.character.CharacterSize.Width :
joinedCharacter.character.CharacterSize.Width - charSizeInfo.offsetX
};
charMaps.Add((joinedCharacter.adjustedGlyph, new XfCharMap
{
codePoint = (ushort)codePoint,
charInformation = charInformation,
imageInformation = new XfImageInformation
{
colorChannel = joinedCharacter.textureIndex,
imageOffsetX = joinedCharacter.texturePosition.X,
imageOffsetY = joinedCharacter.texturePosition.Y
}
}));
if (codePoint != joinedCharacter.character.CodePoint)
{
charInformation = new XfCharInformation
{
charSizeInfoIndex = charSizeInfos.IndexOf(charSizeInfo),
charWidth = char.IsWhiteSpace((char)joinedCharacter.character.CodePoint)
? joinedCharacter.character.CharacterSize.Width
: joinedCharacter.character.CharacterSize.Width - charSizeInfo.offsetX
};
charMaps.Add((joinedCharacter.adjustedGlyph, new XfCharMap
{
codePoint = (ushort)joinedCharacter.character.CodePoint,
charInformation = charInformation,
imageInformation = new XfImageInformation
{
colorChannel = joinedCharacter.textureIndex,
imageOffsetX = joinedCharacter.texturePosition.X,
imageOffsetY = joinedCharacter.texturePosition.Y
}
}));
}
}
// Set escape characters
var escapeIndex = charMaps.FindIndex(x => x.Item2.codePoint == '?');
Header.largeEscapeCharacter = escapeIndex < 0 ? (short)0 : (short)escapeIndex;
Header.smallEscapeCharacter = 0;
// Minimize top value and line height
Header.largeCharHeight = (short)charSizeInfos.Max(x => x.glyphHeight + x.offsetY);
Header.smallCharHeight = 0;
// Draw textures
var img = new Bitmap(imageSize.Width, imageSize.Height);
var gfx = Graphics.FromImage(img);
for (var i = 0; i < textureInfos.Count; i++)
{
var destPoints = new[]
{
new PointF(0, 0),
new PointF(textureInfos[i].FontTexture.Width, 0),
new PointF(0, textureInfos[i].FontTexture.Height)
};
var rect = new RectangleF(0, 0, textureInfos[i].FontTexture.Width, textureInfos[i].FontTexture.Height);
var attr = new ImageAttributes();
attr.SetColorMatrix(_inverseColorMatrices[i]);
gfx.DrawImage(textureInfos[i].FontTexture, destPoints, rect, GraphicsUnit.Pixel, attr);
}
// Save fnt.bin
var savedFntBin = new MemoryStream();
using (var bw = new BinaryWriterX(savedFntBin, true))
{
//Table0
bw.BaseStream.Position = 0x28;
Header.charSizeCount = (short)charSizeInfos.Count;
WriteMultipleCompressed(bw, charSizeInfos, _t0Comp);
bw.WriteAlignment(4);
//Table1
Header.largeCharOffset = (short)(bw.BaseStream.Position >> 2);
Header.largeCharCount = (short)charMaps.Count;
WriteMultipleCompressed(bw, charMaps.OrderBy(x => x.Item2.codePoint).Select(x => x.Item2).ToArray(), _t1Comp);
bw.WriteAlignment(4);
//Table2
Header.smallCharOffset = (short)(bw.BaseStream.Position >> 2);
Header.smallCharCount = 0;
WriteMultipleCompressed(bw, Array.Empty <XfCharMap>(), _t2Comp);
bw.WriteAlignment(4);
//Header
bw.BaseStream.Position = 0;
bw.WriteType(Header);
}
return(savedFntBin, img);
}
