load charset

src/Atlas.cpp

@@ -1,9 +1,13 @@
 #include "Atlas.h"
 #include "BitmapRef.hpp"
 #include "GlyphBox.h"
+#include "conversion.h"
+#include "edge-coloring.h"
+#include "import-font.h"
 #include "ofFileUtils.h"
 #include "ofTrueTypeFont.h"
-
+#include <cstdlib>
+#include <set>
 
 ofxMsdfgen::Atlas::Atlas(){
 }
@@ -42,9 +46,30 @@ bool ofxMsdfgen::Atlas::generate(){
             // The second argument can be ignored unless you mix different font sizes in one atlas.
             // In the last argument, you can specify a charset other than ASCII.
             // To load specific glyph indices, use loadGlyphs instead.
+            if(settings.characters == "charset::ascii"){
                 fontGeometry.loadCharset(font, 1.0, msdf_atlas::Charset::ASCII);
+            }else if(settings.characters == ""){
+                msdfgen::GlyphIndex glyphIndex;
+            }else{
+                msdf_atlas::Charset charset;
+                for(const unsigned char c : settings.characters){
+                    msdf_atlas::unicode_t ut(c);
+                    cout << "add char(" << c << " " << ofToString(ut) << ")" << endl;
+                    charset.add(ut);
+                    cout << "charset.size: " << charset.size() << endl;
+                }
+                fontGeometry.loadCharset(font, 1.0, charset);
+                if(glyphs.size() != settings.characters.length()){
+                    fontGeometry.getGlyphs().empty();
+                    fontGeometry.loadCharset(font, 1.0, charset, false);
+                }
+            }
             // Apply MSDF edge coloring. See edge-coloring.h for other coloring strategies.
             for(msdf_atlas::GlyphGeometry & glyph : glyphs){
+                //glyph.getShape().inverseYAxis = true;
+                //FIXME: we do not need to inverse y axis, something else is wrong
+                msdfgen::Shape & shape = const_cast <msdfgen::Shape &>(glyph.getShape());
+                shape.inverseYAxis = true;
                 glyph.edgeColoring(&msdfgen::edgeColoringInkTrap,
                                    settings.maxCornerAngle,
                                    0);
@@ -55,7 +80,8 @@ bool ofxMsdfgen::Atlas::generate(){
             // setDimensions or setDimensionsConstraint to find the best value
             packer.setDimensionsConstraint(msdf_atlas::TightAtlasPacker::DimensionsConstraint::SQUARE);
             // setScale for a fixed size or setMinimumScale to use the largest that fits
-            packer.setMinimumScale(settings.minimumScale);
+            //packer.setMinimumScale(settings.minimumScale);
+            packer.setScale(settings.scale);
             // setPixelRange or setUnitRange
             packer.setPixelRange(settings.pixelRange);
             packer.setMiterLimit(settings.miterLimit);
@@ -85,21 +111,11 @@ bool ofxMsdfgen::Atlas::generate(){
 
             std::vector <msdf_atlas::GlyphBox> layout = generator.getLayout();
             int i = 0;
-            cout << "glyphs.size() = " << ofToString(glyphs.size()) << endl;
             for(const msdf_atlas::GlyphBox & gb : layout){
-                msdf_atlas::Rectangle rect = gb.rect;
                 msdf_atlas::GlyphGeometry gg = glyphs.data()[i];
-                cout << "glyphbox " << ofToString(i) << "/" << layout.size() << endl;
-                cout
-                    << "\t\tindex: " << gb.index << endl
-                    << "\t\tadvance: " << gb.advance << endl
-                    << "\t\tr x: " << rect.x << endl
-                    << "\t\tr y: " << rect.y << endl
-                    << "\t\tr w: " << rect.w << endl
-                    << "\t\tr h: " << rect.h << endl;
                 i++;
+                glyphGeometries.push_back(gg);
             }
-
             // Cleanup
             msdfgen::destroyFont(font);
 
@@ -113,3 +129,7 @@ bool ofxMsdfgen::Atlas::generate(){
 const ofImage & ofxMsdfgen::Atlas::getAtlasImage(){
     return atlasImage;
 }
+
+const vector <ofxMsdfgen::GlyphGeometry> & ofxMsdfgen::Atlas::getGlyphGeometries(){
+    return glyphGeometries;
+}

src/Atlas.h

@@ -4,14 +4,17 @@
 #include "ofTrueTypeFont.h"
 #include <freetype2/freetype/freetype.h>
 #include <msdf-atlas-gen/msdf-atlas-gen.h>
+#include <msdf-atlas-gen/types.h>
 #include "conversion.h"
 
 namespace ofxMsdfgen {
 struct AtlasSettings {
     float maxCornerAngle = 3.0;
+    float scale = 256.0;
     float minimumScale = 24.0;
     float pixelRange = 2.0;
     float miterLimit = 1.0;
+    string characters = "charset::ascii";
     #ifdef TARGET_EMSCRIPTEN
         int threadCount = 1;
     #else
@@ -26,9 +29,11 @@ class Atlas {
         void setup(string _fontPath, AtlasSettings _settings);
         bool generate();
         const ofImage & getAtlasImage();
+        const vector <GlyphGeometry> & getGlyphGeometries();
         AtlasSettings settings;
     private:
         string fontPath;
         ofImage atlasImage;
+        vector <GlyphGeometry> glyphGeometries;
 };
 }

src/conversion.cpp

@@ -13,8 +13,8 @@ void ofxMsdfgen::toOfImage(const msdfgen::Bitmap <float, 3> bitmap,
     ofPixels & pixels = image.getPixels();
     int w = bitmap.width();
     int h = bitmap.height();
-    for(int y = 0; y < h; y++){
-        for(int x = 0; x < w; x++){
+    for(int y = 0; y < h; ++y){
+        for(int x = 0; x < w; ++x){
             const float * rgb = bitmap(x, y);
             int index = 3 * (x + y * w);
             pixels.getData()[index] = (unsigned char)std::clamp(rgb[0] * 256.0,

src/conversion.h

@@ -1,11 +1,16 @@
 #pragma once
 
+#include "GlyphBox.h"
+#include "glyph-generators.h"
 #include "ofMain.h"
 #include "BitmapAtlasStorage.h"
 #include "GlyphGeometry.h"
 #include <msdf-atlas-gen/msdf-atlas-gen.h>
 
 namespace ofxMsdfgen {
+using GlyphBox = msdf_atlas::GlyphBox;
+using GlyphGeometry = msdf_atlas::GlyphGeometry;
+
 void toOfImage(const msdfgen::Bitmap <float, 3> bitmap,
                ofFloatImage & image);
 void toOfImage(const msdfgen::Bitmap <float, 3> bitmap,