void BuildAtlas_FromInputChars()
{
if (!float.TryParse(txtSelectedFontSize.Text, out float fontSizeInPoints))
{
MessageBox.Show("err: selected font size " + txtSelectedFontSize.Text);
return;
}
//1. create glyph-texture-bitmap generator
var glyphTextureGen = new GlyphTextureBitmapGenerator();
glyphTextureGen.SetSvgBmpBuilderFunc(SvgBuilderHelper.ParseAndRenderSvg);
//2. generate the glyphs
TextureKindAndDescription textureKindAndDesc = (TextureKindAndDescription)this.cmbTextureKind.SelectedItem;
if (textureKindAndDesc.Kind == TextureKind.Msdf)
{
glyphTextureGen.MsdfGenVersion = textureKindAndDesc.TechniqueDetail;
}
var atlasBuilder = new SimpleBitmapAtlasBuilder();
glyphTextureGen.CreateTextureFontFromInputChars(
atlasBuilder,
_typeface,
fontSizeInPoints,
textureKindAndDesc.Kind,
GetUniqueChars()
);
//3. set information before write to font-info
atlasBuilder.SpaceCompactOption = SimpleBitmapAtlasBuilder.CompactOption.ArrangeByHeight;
//4. merge all glyph in the builder into a single image
MemBitmap totalGlyphsImg = atlasBuilder.BuildSingleImage(true);
string fontTextureImg = "test_glyph_atlas.png";
//5. save to png
totalGlyphsImg.SaveImage(fontTextureImg);
//-----------------------------------------------
//let view result...
SimpleUtils.DisposeExistingPictureBoxImage(picOutput);
this.lblOutput.Text = "output: " + fontTextureImg;
this.picOutput.Image = new Bitmap(fontTextureImg);
#if DEBUG
//save glyph image for debug
//PixelFarm.Agg.ActualImage.SaveImgBufferToPngFile(
// totalGlyphsImg.GetImageBuffer(),
// totalGlyphsImg.Width * 4,
// totalGlyphsImg.Width, totalGlyphsImg.Height,
// "total_" + reqFont.Name + "_" + reqFont.SizeInPoints + ".png");
////save image to cache
//SaveImgBufferToFile(totalGlyphsImg, fontTextureImg);
#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());
///
}
//-----------------------------------------------------------------------------------------------
void BuiltAtlas_FromUserOptions(List <GlyphTextureBuildDetail> buildDetails)
{
//we can create font atlas by specific script-langs
//-------------------------------------------------------------------------------
//setting...
Typeface typeface = _typeface;
if (!float.TryParse(txtSelectedFontSize.Text, out float fontSizeInPoints))
{
MessageBox.Show("err: selected font size " + txtSelectedFontSize.Text);
return;
}
//create request font, indeed we need its 'FontKey'
PixelFarm.Drawing.RequestFont reqFont = new PixelFarm.Drawing.RequestFont(
typeface.Name,
fontSizeInPoints
);
//user may want only some script lang (not all script in the font)
//and each script user may want different glyph-gen technique.
//so we use GlyphTextureBuildDetail to describe that information.
if (buildDetails.Count == 0)
{
MessageBox.Show("please select some script");
return;
}
//-------------------------------------------------------------------------------
//1. create glyph-texture-bitmap generator
var glyphTextureGen = new GlyphTextureBitmapGenerator();
glyphTextureGen.SetSvgBmpBuilderFunc(SvgBuilderHelper.ParseAndRenderSvg);
//2. generate the glyphs
TextureKindAndDescription textureKindAndDesc = (TextureKindAndDescription)this.cmbTextureKind.SelectedItem;
if (textureKindAndDesc.Kind == TextureKind.Msdf)
{
glyphTextureGen.MsdfGenVersion = textureKindAndDesc.TechniqueDetail;
}
FontAtlasBuilderHelper helper = new FontAtlasBuilderHelper();
helper.Build(glyphTextureGen, typeface, fontSizeInPoints, textureKindAndDesc.Kind, buildDetails.ToArray());
#if DEBUG
this.Text += ", finished: build time(ms)=" + helper.dbugBuildTimeMillisec;
System.Diagnostics.Debug.WriteLine("font atlas build time (ms): " + helper.dbugBuildTimeMillisec);
#endif
///------------------------------------------------
//lets view result ...
SimpleUtils.DisposeExistingPictureBoxImage(picOutput);
uiFontAtlasFileViewer1.LoadFontAtlasFile(helper.TextureInfoFilename, helper.OutputImgFilename);
this.picOutput.Image = new Bitmap(helper.OutputImgFilename);
this.lblOutput.Text = "Output: " + helper.OutputImgFilename;
////read .info back and convert to base64
//byte[] atlas_info_content = File.ReadAllBytes(textureName + ".info");
//string base64 = Convert.ToBase64String(atlas_info_content);
////create atlas
//SimpleFontAtlas fontAtlas = atlasBuilder.CreateSimpleFontAtlas();
//fontAtlas.TotalGlyph = totalGlyphsImg;
}
void LoadAtlasImgFile(string atlasImgFile)
{
_atlasBmp = new Bitmap(atlasImgFile);
SimpleUtils.DisposeExistingPictureBoxImage(pictureBox1);
pictureBox1.Image = _atlasBmp;
}