public GlyphCache CacheGlyph(int glyph_code,
int glyph_index,
SimpleFont.GlyphDataType data_type,
Rect bounds,
double advance_x,
double advance_y)
{
GlyphCache glyph;
if (m_glyphs.TryGetValue(glyph_code, out glyph))
{
// Already exists, do not overwrite
return(null);
}
glyph = new GlyphCache();
glyph.glyph_index = glyph_index;
glyph.data_type = data_type;
glyph.bounds = bounds;
glyph.advance_x = advance_x;
glyph.advance_y = advance_y;
m_glyphs.Add(glyph_code, glyph);
return(glyph);
}
public GlyphCache GetGlyph(int glyph_code)
{
Synchronize();
GlyphCache gl = m_Fonts.FindGlyph(glyph_code);
if (gl != null)
{
m_PrevGlyph = m_LastGlyph;
return(m_LastGlyph = gl);
}
else
{
if (m_SimpleFont.PrepareGlyph(glyph_code))
{
m_PrevGlyph = m_LastGlyph;
m_LastGlyph = m_Fonts.CacheGlyph(glyph_code,
m_SimpleFont.GlyphIndex,
m_SimpleFont.DataType,
m_SimpleFont.Bounds,
m_SimpleFont.AdvanceX,
m_SimpleFont.AdvanceY);
m_SimpleFont.WriteGlyphTo(m_LastGlyph);//.data);
return(m_LastGlyph);
}
}
return(null);
}
void Synchronize()
{
if (m_ChangeStamp != m_SimpleFont.ChangeStamp)
{
m_Fonts.SetCurrentFont(m_SimpleFont.Signature);
m_ChangeStamp = m_SimpleFont.ChangeStamp;
m_PrevGlyph = m_LastGlyph = null;
}
}
static TextRenderer()
{
textureAtlas = new TextureAtlas(512, PixelFormat.R8G8B8);
glyphCache = new GlyphCache();
textMaterial = Material.Create(Allocator.GetHeap(), "TextMaterial");
var mat = textMaterial.Resolve();
mat.BackfaceCulling = false;
mat.SetBlending(BlendSource.SourceAlpha, BlendDestination.InverseSourceAlpha);
mat.SetShader("Text");
mat.SetTexture(0, textureAtlas.AtlasImageHandle);
mat.GetTextureUnit(0).WrapMode = TextureWrapMode.ClampToEdge;
}
