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 FillAndSave(VertexStore vxs, string filename)
{
using (MemBitmap bmp = new MemBitmap(300, 300)) //approximate
using (Tools.BorrowCurveFlattener(out var flattener))
using (Tools.BorrowVxs(out var v1))
using (Tools.BorrowAggPainter(bmp, out var painter))
{
painter.Clear(PixelFarm.Drawing.Color.White);//bg
painter.FillColor = PixelFarm.Drawing.Color.Black;
flattener.MakeVxs(vxs, v1);
painter.Fill(v1);
bmp.SaveImage(filename);
}
}
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;
//-------------------------------------------------------------
RequestFont reqFont = new RequestFont(typeface.Name, sizeInPoint);
var atlasBuilder = new SimpleBitmapAtlasBuilder();
atlasBuilder.FontFilename = System.IO.Path.GetFileName(fontfile);
atlasBuilder.FontKey = reqFont.FontKey;
//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();
//glyphToContour.Read(builder.GetOutputPoints(), builder.GetOutputContours());
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);
}
}
public void BuildMultiFontSize(string multiFontSizeAtlasFilename, string imgOutputFilename)
{
//merge to the new one
//1. ensure same atlas width
int atlasW = 0;
int j = _atlasList.Count;
int totalHeight = 0;
const int interAtlasSpace = 2;
for (int i = 0; i < j; ++i)
{
TempMergingAtlasInfo atlasInfo = _atlasList[i];
SimpleBitmapAtlas fontAtlas = atlasInfo.fontAtlasFile.AtlasList[0];
totalHeight += fontAtlas.Height + interAtlasSpace;
if (i == 0)
{
atlasW = fontAtlas.Width;
}
else
{
if (atlasW != fontAtlas.Width)
{
throw new NotSupportedException();
}
}
}
//--------------------------------------------
//in this version, the glyph offsetY is measure from bottom***
int[] offsetFromBottoms = new int[j];
int offsetFromBottom = interAtlasSpace;//start offset
for (int i = j - 1; i >= 0; --i)
{
TempMergingAtlasInfo atlasInfo = _atlasList[i];
SimpleBitmapAtlas fontAtlas = atlasInfo.fontAtlasFile.AtlasList[0];
offsetFromBottoms[i] = offsetFromBottom;
offsetFromBottom += fontAtlas.Height + interAtlasSpace;
}
//--------------------------------------------
//merge all img to one
int top = 0;
using (MemBitmap memBitmap = new MemBitmap(atlasW, totalHeight))
{
AggPainter painter = AggPainter.Create(memBitmap);
for (int i = 0; i < j; ++i)
{
TempMergingAtlasInfo atlasInfo = _atlasList[i];
BitmapAtlasFile atlasFile = atlasInfo.fontAtlasFile;
SimpleBitmapAtlas fontAtlas = atlasInfo.fontAtlasFile.AtlasList[0];
atlasInfo.NewCloneLocations = SimpleBitmapAtlas.CloneLocationWithOffset(fontAtlas, 0, offsetFromBottoms[i]);
atlasInfo.ImgUrlDict = fontAtlas.ImgUrlDict;
using (Stream fontImgStream = PixelFarm.Platforms.StorageService.Provider.ReadDataStream(atlasInfo.imgFile))
using (MemBitmap atlasBmp = MemBitmapExt.LoadBitmap(fontImgStream))
{
painter.DrawImage(atlasBmp, 0, top);
top += atlasBmp.Height + interAtlasSpace;
}
}
memBitmap.SaveImage(imgOutputFilename);
}
//--------------------------------------------
//save merged font atlas
//TODO: use 'File' provider to access system file
using (FileStream fs = new FileStream(multiFontSizeAtlasFilename, FileMode.Create))
using (BinaryWriter w = new BinaryWriter(fs))
{
//-----------
//overview
//total img info
BitmapAtlasFile fontAtlasFile = new BitmapAtlasFile();
fontAtlasFile.StartWrite(fs);
//1. simple atlas count
fontAtlasFile.WriteOverviewMultiSizeFontInfo((ushort)j);
//2.
for (int i = 0; i < j; ++i)
{
TempMergingAtlasInfo atlasInfo = _atlasList[i];
RequestFont reqFont = atlasInfo.reqFont;
fontAtlasFile.WriteOverviewFontInfo(reqFont.Name, reqFont.GetReqKey(), reqFont.SizeInPoints);//size in points
fontAtlasFile.WriteTotalImageInfo(
(ushort)atlasW,
(ushort)top,
4,
atlasInfo.textureKind);
//
fontAtlasFile.WriteAtlasItems(atlasInfo.NewCloneLocations);
if (atlasInfo.ImgUrlDict != null)
{
fontAtlasFile.WriteImgUrlDict(atlasInfo.ImgUrlDict);
}
}
fontAtlasFile.EndWrite();
}
}
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());
///
}
public static void Test(string imgdir, Func <string, MemBitmap> imgLoader)
{
SimpleBitmapAtlasBuilder bmpAtlasBuilder = new SimpleBitmapAtlasBuilder();
//test!
int imgdirNameLen = imgdir.Length;
string[] filenames = System.IO.Directory.GetFiles(imgdir, "*.png");
ushort index = 0;
Dictionary <string, ushort> imgDic = new Dictionary <string, ushort>();
foreach (string f in filenames)
{
MemBitmap itemBmp = imgLoader(f);
AtlasItemImage atlasItem = new AtlasItemImage(itemBmp.Width, itemBmp.Height);
atlasItem.OriginalBounds = new PixelFarm.Drawing.RectangleF(0, 0, itemBmp.Width, itemBmp.Height);
atlasItem.SetBitmap(itemBmp, false);
//
bmpAtlasBuilder.AddAtlasItemImage(index, atlasItem);
string imgPath = f.Substring(imgdirNameLen);
imgDic.Add(imgPath, index);
index++;
//------------
#if DEBUG
if (index >= ushort.MaxValue)
{
throw new NotSupportedException();
}
#endif
//------------
}
//string atlasInfoFile = "d:\\WImageTest\\test1_atlas.info";
//string totalImgFile = "d:\\WImageTest\\test1_atlas.png";
string atlasInfoFile = "test1_atlas.info";
string totalImgFile = "test1_atlas.png";
//test, write data to disk
AtlasItemImage totalImg = bmpAtlasBuilder.BuildSingleImage();
bmpAtlasBuilder.ImgUrlDict = imgDic;
bmpAtlasBuilder.SetAtlasInfo(TextureKind.Bitmap);
bmpAtlasBuilder.SaveAtlasInfo(atlasInfoFile); //save to filename
totalImg.Bitmap.SaveImage(totalImgFile);
//-----
//test, read data back
bmpAtlasBuilder = new SimpleBitmapAtlasBuilder();
SimpleBitmaptAtlas bitmapAtlas = bmpAtlasBuilder.LoadAtlasInfo(atlasInfoFile);
//
MemBitmap totalAtlasImg = imgLoader(totalImgFile);
AtlasItemImage atlasImg = new AtlasItemImage(totalAtlasImg.Width, totalAtlasImg.Height);
bitmapAtlas.TotalImg = atlasImg;
for (int i = 0; i < index; ++i)
{
if (bitmapAtlas.TryGetBitmapMapData((ushort)i, out BitmapMapData bmpMapData))
{
//test copy data from bitmap
MemBitmap itemImg = totalAtlasImg.CopyImgBuffer(bmpMapData.Left, bmpMapData.Top, bmpMapData.Width, bmpMapData.Height);
itemImg.SaveImage("test1_atlas_item" + i + ".png");
}
}
//test,
{
if (bitmapAtlas.TryGetBitmapMapData(@"\chk_checked.png", out BitmapMapData bmpMapData))
{
MemBitmap itemImg = totalAtlasImg.CopyImgBuffer(bmpMapData.Left, bmpMapData.Top, bmpMapData.Width, bmpMapData.Height);
itemImg.SaveImage("test1_atlas_item_a.png");
}
}
}
public PixelFarm.CpuBlit.BitmapAtlas.BitmapAtlasItemSource GenerateMsdfTexture(VertexStore vxs)
{
Shape shape = CreateShape(vxs, out EdgeBmpLut edgeBmpLut);
if (MsdfGenParams == null)
{
MsdfGenParams = new MsdfGenParams();//use default
}
//---preview v1 bounds-----------
PreviewSizeAndLocation(
shape,
MsdfGenParams,
out int imgW, out int imgH,
out Vector2 translateVec);
_dx = translateVec.x;
_dy = translateVec.y;
//------------------------------------
List <ContourCorner> corners = edgeBmpLut.Corners;
TranslateCorners(corners, _dx, _dy);
//[1] create lookup table (lut) bitmap that contains area/corner/shape information
//each pixel inside it contains data that map to area/corner/shape
//
using (MemBitmap bmpLut = new MemBitmap(imgW, imgH))
using (Tools.BorrowAggPainter(bmpLut, out var painter))
using (Tools.BorrowShapeBuilder(out var sh))
{
_msdfEdgePxBlender.ClearOverlapList();//reset
painter.RenderSurface.SetCustomPixelBlender(_msdfEdgePxBlender);
//1. clear all bg to black
painter.Clear(PixelFarm.Drawing.Color.Black);
sh.InitVxs(vxs) //...
.TranslateToNewVxs(_dx, _dy)
.Flatten();
//---------
//2. force fill the shape (this include hole(s) inside shape to)
//( we set threshold to 50 and do force fill)
painter.RenderSurface.SetGamma(_prebuiltThresholdGamma_50);
_msdfEdgePxBlender.FillMode = MsdfEdgePixelBlender.BlenderFillMode.Force;
painter.Fill(sh.CurrentSharedVxs, EdgeBmpLut.EncodeToColor(0, AreaKind.AreaInsideCoverage50));
painter.RenderSurface.SetGamma(_prebuiltThresholdGamma_50);//restore
#if DEBUG
//debug for output
//painter.Fill(v7, Color.Red);
//bmpLut.SaveImage("dbug_step0.png");
//int curr_step = 1;
#endif
//---------
int cornerCount = corners.Count;
List <int> cornerOfNextContours = edgeBmpLut.CornerOfNextContours;
int startAt = 0;
int n = 1;
int corner_index = 1;
for (int cnt_index = 0; cnt_index < cornerOfNextContours.Count; ++cnt_index)
{
//contour scope
int next_corner_startAt = cornerOfNextContours[cnt_index];
//-----------
//AA-borders of the contour
painter.RenderSurface.SetGamma(_prebuiltThresholdGamma_OverlappedBorder); //this creates overlapped area
for (; n < next_corner_startAt; ++n)
{
//0-> 1
//1->2 ... n
FillBorders(painter, corners[n - 1], corners[n]);
#if DEBUG
//bmpLut.SaveImage("dbug_step" + curr_step + ".png");
//curr_step++;
#endif
}
{
//the last one
//close contour, n-> 0
FillBorders(painter, corners[next_corner_startAt - 1], corners[startAt]);
#if DEBUG
//bmpLut.SaveImage("dbug_step" + curr_step + ".png");
//curr_step++;
#endif
}
startAt = next_corner_startAt;
n++;
corner_index++;
}
#if DEBUG
//bmpLut.SaveImage("dbug_step2.png");
#endif
//painter.RenderSurface.SetGamma(_prebuiltThresholdGamma_100);
//_msdfEdgePxBlender.FillMode = MsdfEdgePixelBlender.BlenderFillMode.InnerAreaX;
//painter.Fill(sh.CurrentSharedVxs, EdgeBmpLut.EncodeToColor(0, AreaKind.AreaInsideCoverage100));
painter.RenderSurface.SetCustomPixelBlender(null);
painter.RenderSurface.SetGamma(null);
//
List <CornerList> overlappedList = MakeUniqueList(_msdfEdgePxBlender._overlapList);
edgeBmpLut.SetOverlappedList(overlappedList);
#if DEBUG
if (dbugWriteMsdfTexture)
{
//save for debug
//we save to msdf_shape_lut2.png
//and check it from external program
//but we generate msdf bitmap from msdf_shape_lut.png
bmpLut.SaveImage(dbug_msdf_shape_lutName);
var bmp5 = MemBitmap.LoadBitmap(dbug_msdf_shape_lutName);
int[] lutBuffer5 = bmp5.CopyImgBuffer(bmpLut.Width, bmpLut.Height);
if (bmpLut.Width == 338 && bmpLut.Height == 477)
{
dbugBreak = true;
}
edgeBmpLut.SetBmpBuffer(bmpLut.Width, bmpLut.Height, lutBuffer5);
//generate actual sprite
PixelFarm.CpuBlit.BitmapAtlas.BitmapAtlasItemSource item = CreateMsdfImage(shape, MsdfGenParams, imgW, imgH, translateVec, edgeBmpLut);
//save msdf bitmap to file
using (MemBitmap memBmp = MemBitmap.CreateFromCopy(item.Width, item.Height, item.Source))
{
memBmp.SaveImage(dbug_msdf_output);
}
return(item);
}
#endif
//[B] after we have a lookup table
int[] lutBuffer = bmpLut.CopyImgBuffer(bmpLut.Width, bmpLut.Height);
edgeBmpLut.SetBmpBuffer(bmpLut.Width, bmpLut.Height, lutBuffer);
return(CreateMsdfImage(shape, MsdfGenParams, imgW, imgH, translateVec, edgeBmpLut));
}
}
public static void BuildBitmapAtlas(AtlasProject atlasProj, Func <string, MemBitmap> imgLoader, bool test_extract = false)
{
//demonstrate how to build a bitmap atlas
List <AtlasItemSourceFile> fileList = atlasProj.Items;
//1. create builder
var bmpAtlasBuilder = new SimpleBitmapAtlasBuilder();
ushort index = 0;
Dictionary <string, ushort> imgDic = new Dictionary <string, ushort>();
foreach (AtlasItemSourceFile f in fileList)
{
if (f.Kind != AtlasItemSourceKind.Image)
{
continue;
}
//3. load a bitmap
BitmapAtlasItemSource atlasItem = null;
using (MemBitmap itemBmp = imgLoader(f.AbsoluteFilename))
{
//4. get information about it
atlasItem = new BitmapAtlasItemSource(itemBmp.Width, itemBmp.Height);
atlasItem.SetImageBuffer(MemBitmap.CopyImgBuffer(itemBmp));
}
atlasItem.UniqueInt16Name = index;
//5. add to builder
bmpAtlasBuilder.AddItemSource(atlasItem);
//get relative filename
string imgPath = "//" + f.Link;
imgDic.Add(imgPath, index);
index++;
//------------
#if DEBUG
if (index >= ushort.MaxValue)
{
throw new NotSupportedException();
}
#endif
//------------
}
if (imgDic.Count == 0)
{
//no file
return;
}
string atlasInfoFile = atlasProj.OutputFilename + ".info";
string totalImgFile = atlasProj.OutputFilename + ".png";
//5. merge all small images into a bigone
using (MemBitmap totalImg = bmpAtlasBuilder.BuildSingleImage(false))
{
bmpAtlasBuilder.ImgUrlDict = imgDic;
bmpAtlasBuilder.SetAtlasInfo(TextureKind.Bitmap, 0); //font size
//6. save atlas info and total-img (.png file)
bmpAtlasBuilder.SaveAtlasInfo(atlasInfoFile);
totalImg.SaveImage(totalImgFile);
}
//----------------------
//7. create an atlas file in a source file version, user can embed the source to file
//easy, just read .info and .png then convert to binary buffer
BuildAtlasInEmbededSourceVersion(atlasProj, atlasInfoFile, totalImgFile, imgDic);
//----------------------
//test, read data back
//----------------------
if (test_extract)
{
bmpAtlasBuilder = new SimpleBitmapAtlasBuilder();
SimpleBitmapAtlas bitmapAtlas = bmpAtlasBuilder.LoadAtlasInfo(atlasInfoFile)[0];
//
MemBitmap totalAtlasImg = imgLoader(totalImgFile);
bitmapAtlas.SetMainBitmap(imgLoader(totalImgFile), true);
//-----
for (int i = 0; i < index; ++i)
{
if (bitmapAtlas.TryGetItem((ushort)i, out AtlasItem bmpMapData))
{
//test copy data from bitmap
MemBitmap itemImg = totalAtlasImg.CopyImgBuffer(bmpMapData.Left, bmpMapData.Top, bmpMapData.Width, bmpMapData.Height);
itemImg.SaveImage("test1_atlas_item" + i + ".png");
}
}
//test,
{
if (bitmapAtlas.TryGetItem(@"\chk_checked.png", out AtlasItem bmpMapData))
{
MemBitmap itemImg = totalAtlasImg.CopyImgBuffer(bmpMapData.Left, bmpMapData.Top, bmpMapData.Width, bmpMapData.Height);
itemImg.SaveImage("test1_atlas_item_a.png");
}
}
}
}