private byte[] CreateGlyph(char firstChar, int charCount, ref int width, ref int height)
{
byte[] bitmapData = null;
//Read ttf file into byte array
byte[] ttfFileContent = File.ReadAllBytes(ttfSampleDir + '\\' + FontSelectorComboBox.SelectedItem as string);
using (var ttf = new PinnedArray <byte>(ttfFileContent))
{
//get pointer of the ttf file content
var ttf_buffer = ttf.Pointer;
//Initialize fontinfo
FontInfo font = new FontInfo();
STBTrueType.InitFont(ref font, ttf_buffer, STBTrueType.GetFontOffsetForIndex(ttf_buffer, 0));
//set bitmap size
const int BITMAP_W = 512;
const int BITMAP_H = 512;
//allocate bitmap buffer
byte[] bitmapBuffer = new byte[BITMAP_W * BITMAP_W];
BakedChar[] cdata = new BakedChar[charCount];
//bake bitmap for codepoint from firstChar to firstChar + charCount - 1
STBTrueType.BakeFontBitmap(ttf_buffer, STBTrueType.GetFontOffsetForIndex(ttf_buffer, 0), pixelHeight, bitmapBuffer, BITMAP_W, BITMAP_H, firstChar, charCount, cdata); // no guarantee this fits!
bitmapData = bitmapBuffer;
width = BITMAP_W;
height = BITMAP_H;
}
return(bitmapData);
}
public void Test_BakeMultipleCodepoint()
{
#region Init
string assemblyDir = Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location);
string solution_dir = Path.GetDirectoryName(Path.GetDirectoryName(Path.GetDirectoryName(assemblyDir)));
#endregion
//Read ttf file into byte array
byte[] ttfFileContent = File.ReadAllBytes(solution_dir + @"\FontSamples\Windsong.ttf");
using (var ttf = new PinnedArray <byte>(ttfFileContent))
{
//get pointer of the ttf file content
var ttf_buffer = ttf.Pointer;
//Initialize fontinfo
FontInfo font = new FontInfo();
STBTrueType.InitFont(ref font, ttf_buffer, STBTrueType.GetFontOffsetForIndex(ttf_buffer, 0));
//set bitmap size
const int BITMAP_W = 512;
const int BITMAP_H = 512;
//allocate bitmap buffer
byte[] bitmapBuffer = new byte[BITMAP_W * BITMAP_W];
BakedChar[] cdata = new BakedChar[256 * 2]; // ASCII 32..126 is 95 glyphs
//bake bitmap for codepoint from 32 to 126
STBTrueType.BakeFontBitmap(ttf_buffer, STBTrueType.GetFontOffsetForIndex(ttf_buffer, 0), 32.0f, bitmapBuffer, BITMAP_W, BITMAP_H, 32, 96, cdata); // no guarantee this fits!
//output the bitmap to a text file
WriteBitmapToFileAsText("testOuput.txt", BITMAP_H, BITMAP_W, bitmapBuffer);
//Open the text file
OpenFile("testOuput.txt");
}
}
static void Main(string[] args)
{
var font = new TrueTypeFont(@"Anonymous\Anonymous Pro.ttf");
// Render some characters...
for (char ch = 'A'; ch <= 'Z'; ch++)
{
int width, height, xOffset, yOffset;
float scale = font.GetScaleForPixelHeight(80);
byte[] data = font.GetCodepointBitmap(ch, scale, scale,
out width, out height, out xOffset, out yOffset);
SaveBitmap(data, 0, 0, width, height, width, "Char-" + ch.ToString() + ".png");
}
// Let's try baking. Tasty tasty.
BakedCharCollection characters;
float pixelHeight = 18;
var bitmap = font.BakeFontBitmap(pixelHeight, out characters, true);
SaveBitmap(bitmap.Buffer, 0, 0, bitmap.Width, bitmap.Height, bitmap.Width, "BakeResult1.png");
// Now, let's give serialization a go.
using (var file = File.OpenWrite("BakeResult2.temp"))
{
var bitmapSaver = new BinaryFormatter();
bitmapSaver.Serialize(file, bitmap);
bitmapSaver.Serialize(file, characters);
int ascent, descent, lineGap;
float scale = font.GetScaleForPixelHeight(pixelHeight);
font.GetFontVMetrics(out ascent, out descent, out lineGap);
bitmapSaver.Serialize(file, (float)ascent * scale);
bitmapSaver.Serialize(file, (float)descent * scale);
bitmapSaver.Serialize(file, (float)lineGap * scale);
}
using (var file = File.OpenRead("BakeResult2.temp"))
{
var bitmapLoader = new BinaryFormatter();
var bitmapAgain = (FontBitmap)bitmapLoader.Deserialize(file);
var charactersAgain = (BakedCharCollection)bitmapLoader.Deserialize(file);
SaveBitmap(bitmapAgain.Buffer, 0, 0, bitmapAgain.Width, bitmapAgain.Height, bitmap.Width, "BakeResult2.png");
for (char ch = 'A'; ch <= 'Z'; ch++)
{
BakedChar bakedChar = charactersAgain[ch];
if (bakedChar.IsEmpty)
{
continue;
}
SaveBitmap(bitmapAgain.Buffer,
bakedChar.X0, bakedChar.Y0, bakedChar.X1, bakedChar.Y1,
bitmapAgain.Stride, "SmallChar-" + ch.ToString() + ".png");
}
}
}
