private void button4_Click(object sender, EventArgs e)
{
string fontfilename = "d:\\WImageTest\\a_total.xml";
var atlasBuilder = new Typography.Rendering.SimpleFontAtlasBuilder();
SimpleFontAtlas fontAtlas = atlasBuilder.LoadFontInfo(fontfilename);
using (Bitmap totalImg = new Bitmap("d:\\WImageTest\\a_total.png"))
{
var bmpdata = totalImg.LockBits(new System.Drawing.Rectangle(0, 0, totalImg.Width, totalImg.Height), System.Drawing.Imaging.ImageLockMode.ReadWrite, totalImg.PixelFormat);
var buffer = new int[totalImg.Width * totalImg.Height];
System.Runtime.InteropServices.Marshal.Copy(bmpdata.Scan0, buffer, 0, buffer.Length);
totalImg.UnlockBits(bmpdata);
var glyImage = new GlyphImage(totalImg.Width, totalImg.Height);
glyImage.SetImageBuffer(buffer, false);
fontAtlas.TotalGlyph = glyImage;
}
}
/// <summary>
/// get from cache or create a new one
/// </summary>
/// <param name="reqFont"></param>
/// <returns></returns>
public SimpleFontAtlas GetFontAtlas(RequestFont reqFont, out B outputBitmap)
{
#if DEBUG
_dbugStopWatch.Reset();
_dbugStopWatch.Start();
#endif
int fontKey = reqFont.FontKey;
SimpleFontAtlas fontAtlas;
if (!_createdAtlases.TryGetValue(fontKey, out fontAtlas))
{
//check from pre-built cache (if availiable)
Typeface resolvedTypeface = _textServices.ResolveTypeface(reqFont);
string fontTextureFile = reqFont.Name + "_" + fontKey;
string resolveFontFile = fontTextureFile + ".info";
string fontTextureInfoFile = resolveFontFile;
string fontTextureImgFilename = fontTextureInfoFile + ".png";
//check if the file exist
if (StorageService.Provider.DataExists(fontTextureInfoFile) &&
StorageService.Provider.DataExists(fontTextureImgFilename))
{
SimpleFontAtlasBuilder atlasBuilder = new SimpleFontAtlasBuilder();
using (System.IO.Stream dataStream = StorageService.Provider.ReadDataStream(fontTextureInfoFile))
{
try
{
fontAtlas = atlasBuilder.LoadFontInfo(dataStream);
fontAtlas.TotalGlyph = ReadGlyphImages(fontTextureImgFilename);
fontAtlas.OriginalFontSizePts = reqFont.SizeInPoints;
_createdAtlases.Add(fontKey, fontAtlas);
}
catch (Exception ex)
{
throw ex;
}
}
}
else
{
GlyphImage totalGlyphsImg = null;
SimpleFontAtlasBuilder atlasBuilder = null;
var glyphTextureGen = new GlyphTextureBitmapGenerator();
glyphTextureGen.CreateTextureFontBuildDetail(
resolvedTypeface,
reqFont.SizeInPoints,
_textureKind,
GlyphTextureCustomConfigs.TryGetGlyphTextureBuildDetail(reqFont),
(glyphIndex, glyphImage, outputAtlasBuilder) =>
{
if (outputAtlasBuilder != null)
{
//finish
atlasBuilder = outputAtlasBuilder;
}
}
);
atlasBuilder.SpaceCompactOption = SimpleFontAtlasBuilder.CompactOption.ArrangeByHeight;
totalGlyphsImg = atlasBuilder.BuildSingleImage();
//if (reqFont.SizeInPoints == 14 && cacheImg != null)
//{
// totalGlyphsImg = cacheImg;
//}
//totalGlyphsImg = Sharpen(totalGlyphsImg, 1); //test shapen primary image
//-
//
//create atlas
fontAtlas = atlasBuilder.CreateSimpleFontAtlas();
fontAtlas.TotalGlyph = totalGlyphsImg;
#if DEBUG
//save glyph image for debug
//PixelFarm.Agg.ActualImage.SaveImgBufferToPngFile(
// totalGlyphsImg.GetImageBuffer(),
// totalGlyphsImg.Width * 4,
// totalGlyphsImg.Width, totalGlyphsImg.Height,
// "d:\\WImageTest\\total_" + reqFont.Name + "_" + reqFont.SizeInPoints + ".png");
////save image to cache
SaveImgBufferToFile(totalGlyphsImg, fontTextureImgFilename);
#endif
//cache the atlas
_createdAtlases.Add(fontKey, fontAtlas);
//
////calculate some commonly used values
//fontAtlas.SetTextureScaleInfo(
// resolvedTypeface.CalculateScaleToPixelFromPointSize(fontAtlas.OriginalFontSizePts),
// resolvedTypeface.CalculateScaleToPixelFromPointSize(reqFont.SizeInPoints));
////TODO: review here, use scaled or unscaled values
//fontAtlas.SetCommonFontMetricValues(
// resolvedTypeface.Ascender,
// resolvedTypeface.Descender,
// resolvedTypeface.LineGap,
// resolvedTypeface.CalculateRecommendLineSpacing());
///
#if DEBUG
_dbugStopWatch.Stop();
System.Diagnostics.Debug.WriteLine("build font atlas: " + _dbugStopWatch.ElapsedMilliseconds + " ms");
#endif
//save font info to cache
using (System.IO.MemoryStream ms = new System.IO.MemoryStream())
{
atlasBuilder.SaveFontInfo(ms);
//System.IO.File.WriteAllBytes(fontTextureInfoFile, ms.ToArray());
StorageService.Provider.SaveData(fontTextureInfoFile, ms.ToArray());
#if DEBUG
//write temp debug info
System.IO.File.WriteAllText(fontTextureInfoFile + ".txt", reqFont.Name + ",size" + reqFont.SizeInPoints + "pts");
#endif
}
}
}
outputBitmap = _loadedGlyphs.GetOrCreateNewOne(fontAtlas);
return(fontAtlas);
}
