public void Build(
GlyphTextureBitmapGenerator glyphTextureGen,
Typeface typeface, float fontSizeInPoints,
TextureKind textureKind,
GlyphTextureBuildDetail[] buildDetails)
{
#if DEBUG
//overall, glyph atlas generation time
System.Diagnostics.Stopwatch dbugStopWatch = new System.Diagnostics.Stopwatch();
dbugStopWatch.Start();
#endif
var atlasBuilder = new SimpleBitmapAtlasBuilder();
glyphTextureGen.CreateTextureFontFromBuildDetail(
atlasBuilder,
typeface,
fontSizeInPoints,
textureKind,
buildDetails);
//3. set information before write to font-info
atlasBuilder.SpaceCompactOption = SimpleBitmapAtlasBuilder.CompactOption.ArrangeByHeight;
atlasBuilder.SetAtlasFontInfo(typeface.Name, fontSizeInPoints);
//4. merge all glyph in the builder into a single image
using (MemBitmap totalGlyphsImg = atlasBuilder.BuildSingleImage(true))
{
if (TextureInfoFilename == null)
{
//use random suffix
string random_suffix = Guid.NewGuid().ToString().Substring(0, 7);
string textureName = typeface.Name.ToLower() + "_" + random_suffix + ".info";
string output_imgFilename = textureName + ".png";
TextureInfoFilename = textureName;
OutputImgFilename = output_imgFilename;
}
//5. save atlas info to disk
using (FileStream fs = new FileStream(TextureInfoFilename, FileMode.Create))
{
atlasBuilder.SaveAtlasInfo(fs);
}
//6. save total-glyph-image to disk
totalGlyphsImg.SaveImage(OutputImgFilename);
}
#if DEBUG
dbugStopWatch.Stop();
dbugBuildTimeMillisec = dbugStopWatch.ElapsedMilliseconds;
#endif
}
static void CreateSampleMsdfTextureFont(string fontfile, float sizeInPoint, ushort startGlyphIndex, ushort endGlyphIndex, string outputFile)
{
//sample
var reader = new OpenFontReader();
Typeface typeface = null;
using (var fs = new FileStream(fontfile, FileMode.Open))
{
//1. read typeface from font file
typeface = reader.Read(fs);
}
//sample: create sample msdf texture
//-------------------------------------------------------------
var builder = new GlyphOutlineBuilder(typeface);
//builder.UseTrueTypeInterpreter = this.chkTrueTypeHint.Checked;
//builder.UseVerticalHinting = this.chkVerticalHinting.Checked;
//-------------------------------------------------------------
var atlasBuilder = new SimpleBitmapAtlasBuilder();
atlasBuilder.SetAtlasFontInfo(typeface.Name, sizeInPoint);
//create temp folder for each glyph
string tempFolderName = "tmp_msdf";
if (Directory.Exists(tempFolderName))
{
//DANGER!
Directory.Delete(tempFolderName, true);
}
Directory.CreateDirectory(tempFolderName);
if (endGlyphIndex < 1)
{
endGlyphIndex = (ushort)(typeface.GlyphCount - 1);
}
for (ushort gindex = startGlyphIndex; gindex <= endGlyphIndex; ++gindex)
{
//build glyph
builder.BuildFromGlyphIndex(gindex, sizeInPoint);
var glyphContourBuilder = new ContourBuilder();
var genParams = new MsdfGenParams();
builder.ReadShapes(new GlyphContourBuilder2(glyphContourBuilder));
//genParams.shapeScale = 1f / 64; //we scale later (as original C++ code use 1/64)
BitmapAtlasItemSource glyphImg = MsdfImageGen.CreateMsdfImageV1(glyphContourBuilder, genParams);
glyphImg.UniqueInt16Name = gindex;
atlasBuilder.AddItemSource(glyphImg);
using (Bitmap bmp = new Bitmap(glyphImg.Width, glyphImg.Height, System.Drawing.Imaging.PixelFormat.Format32bppArgb))
{
int[] buffer = glyphImg.GetImageBuffer();
var bmpdata = bmp.LockBits(new System.Drawing.Rectangle(0, 0, glyphImg.Width, glyphImg.Height), System.Drawing.Imaging.ImageLockMode.ReadWrite, bmp.PixelFormat);
System.Runtime.InteropServices.Marshal.Copy(buffer, 0, bmpdata.Scan0, buffer.Length);
bmp.UnlockBits(bmpdata);
bmp.Save(tempFolderName + "//glyph_" + gindex + ".png");
}
}
MemBitmap glyphImg2 = atlasBuilder.BuildSingleImage(true);
glyphImg2.SaveImage(outputFile);
string saveToFile = "a_info.bin";
using (System.IO.FileStream saveFs = new FileStream(saveToFile, FileMode.Create))
{
atlasBuilder.SaveAtlasInfo(saveFs);
saveFs.Flush();
saveFs.Close();
}
//
//-----------
//test read texture info back
var atlasBuilder2 = new SimpleBitmapAtlasBuilder();
using (System.IO.FileStream readFromFs = new FileStream(saveToFile, FileMode.Open))
{
var readbackFontAtlas = atlasBuilder2.LoadAtlasInfo(readFromFs);
}
}
