private static bool LoadTextTextures(Text text)
{
var success = true;
for (var i = 0; i < text.Content.Length; i++)
{
if (SpriteRendererPanel.TextTextures.ContainsKey(text.GetCharKey(i)))
{
continue;
}
var glyphSlot = FontGlyphs.GetOrSetGlyphMetrics(text, i);
var gdipBitmap = default(Bitmap);
using (var glyph = glyphSlot.GetGlyph())
{
var bitmapGlyph = glyph.ToBitmapGlyph();
var bitmap = bitmapGlyph.Bitmap;
if (bitmap.Rows != 0)
{
var metricRect = new Rectangle(
(bitmap.Width - glyphSlot.Metrics.Width.Round()) / 2,
(bitmap.Rows - glyphSlot.Metrics.Height.Round()) / 2,
glyphSlot.Metrics.Width.Round(),
glyphSlot.Metrics.Height.Round());
gdipBitmap = bitmap.ToGdipBitmap(Color.White).Crop(metricRect);
// TODO: Fix real reason for malformed X
if (text.Content[i] == 'X' && Math.Abs(text.Font.SizeInPoints - 15) < double.Epsilon * 8)
{
var fixedXBitmap = new Bitmap(gdipBitmap, metricRect.Size);
for (int c = 0; c < metricRect.Width; c++)
{
fixedXBitmap.SetPixel(c, metricRect.Height - 1, fixedXBitmap.GetPixel(c, metricRect.Height - 2));
}
gdipBitmap = fixedXBitmap;
}
}
else
{
gdipBitmap = new Bitmap(1, 1);
}
var newTexture = new Texture(gdipBitmap, (SpriteRendererPanel.UsedTextureUnits - 1).ToTextureUnit());
if (newTexture.Loaded)
{
SpriteRendererPanel.TextTextures[text.GetCharKey(i)] = newTexture;
}
success &= newTexture.Loaded;
}
}
return(success);
}
public static GlyphSlot GetOrSetGlyphMetrics(Text text, int i)
{
if (!FontGlyphs.TextFaces.TryGetValue(text.Font, out var face))
{
var windowFontFamily = new System.Windows.Media.FontFamily(text.Font.FontFamily.Name);
var typeface = new Typeface(windowFontFamily, FontStyles.Normal, FontWeights.Normal, FontStretches.Normal);
typeface.TryGetGlyphTypeface(out var glyphTypeface);
face = new Face(FontGlyphs.TextLibrary, glyphTypeface.FontUri.AbsolutePath);
face.SetCharSize(0, text.Font.SizeInPoints * 64, 1, 1);
FontGlyphs.TextFaces[text.Font] = face;
FontGlyphs.TextFaceHeights[text.Font] = face.Size.Metrics.Height;
}
if (face.GetCharIndex(text.Content[i]) == 0)
{
if (!FontGlyphs.FallbackTextFaces.TryGetValue(text.Font, out face))
{
face = new Face(FontGlyphs.TextLibrary, FontGlyphs.FallbackFontBytes, 1);
face.SetCharSize(0, text.Font.SizeInPoints * 64, 1, 1);
FontGlyphs.FallbackTextFaces[text.Font] = face;
}
}
face.LoadChar(text.Content[i], LoadFlags.Default, LoadTarget.Mono);
var glyphSlot = face.Glyph;
glyphSlot.RenderGlyph(RenderMode.Mono);
FontGlyphs.TextMetrics[text.GetCharKey(i)] = glyphSlot.Metrics;
return(glyphSlot);
}
private static int GetOrSetTextureUnit(Text text, int index)
{
if (string.IsNullOrWhiteSpace(text?.Content))
{
return(-1);
}
if (SpriteRendererPanel.TextureUnits.ContainsKey(Tuple.Create(TextureType.Text, text.GetCharKey(index))))
{
return(SpriteRendererPanel.TextureUnits[Tuple.Create(TextureType.Text, text.GetCharKey(index))].ToInt());
}
else
{
// If at 16, will have already drawn batch
if (SpriteRendererPanel.TextureUnits.Count >= SpriteRendererPanel.UsedTextureUnits - 1)
{
SpriteRendererPanel.TextureUnits.Clear();
}
if (SpriteRendererPanel.TextTextures.ContainsKey(text.GetCharKey(index)) || SpriteRendererPanel.LoadTextTextures(text))
{
var unitNumber = SpriteRendererPanel.TextureUnits.Count;
var usedUnit = unitNumber.ToTextureUnit();
var usedTexture = SpriteRendererPanel.TextTextures[text.GetCharKey(index)];
usedTexture.Use(usedUnit);
SpriteRendererPanel.Shader.SetInt($"textureArrays[{unitNumber}]", unitNumber);
SpriteRendererPanel.Shader.SetInt($"sheetW[{unitNumber}]", usedTexture.Width);
SpriteRendererPanel.Shader.SetInt($"sheetH[{unitNumber}]", usedTexture.Height);
SpriteRendererPanel.TextureUnits[Tuple.Create(TextureType.Text, text.GetCharKey(index))] = usedUnit;
return(unitNumber);
}
else
{
return(-1);
}
}
}
