예제 #1
0
//-----------------------------------------------------------
bool ofTrueTypeFont::load(string _filename, int _fontSize, bool _bAntiAliased, bool _bFullCharacterSet, bool _makeContours, float _simplifyAmt, int _dpi) {
	#if defined(TARGET_ANDROID)
	ofAddListener(ofxAndroidEvents().unloadGL,this,&ofTrueTypeFont::unloadTextures);
	ofAddListener(ofxAndroidEvents().reloadGL,this,&ofTrueTypeFont::reloadTextures);
	#endif
	int border = 1;
	initLibraries();

	// if we've already been loaded, try to clean up :
	unloadTextures();

	if( _dpi == 0 ){
		_dpi = ttfGlobalDpi;
	}



	bLoadedOk 			= false;
	bAntiAliased 		= _bAntiAliased;
	bFullCharacterSet 	= _bFullCharacterSet;
	fontSize			= _fontSize;
	bMakeContours 		= _makeContours;
	simplifyAmt			= _simplifyAmt;
	dpi 				= _dpi;

	//--------------- load the library and typeface


	if(!loadFontFace(_filename,_fontSize,face,filename)){
        return false;
	}


	FT_Set_Char_Size( face, fontSize << 6, fontSize << 6, dpi, dpi);
	float fontUnitScale = ((float)fontSize * dpi) / (72 * face->units_per_EM);
	lineHeight = face->height * fontUnitScale;
	ascenderHeight = face->ascender * fontUnitScale;
	descenderHeight = face->descender * fontUnitScale;
	glyphBBox.set(face->bbox.xMin * fontUnitScale,
				  face->bbox.yMin * fontUnitScale,
				  (face->bbox.xMax - face->bbox.xMin) * fontUnitScale,
				  (face->bbox.yMax - face->bbox.yMin) * fontUnitScale);

	//------------------------------------------------------
	//kerning would be great to support:
	//ofLogNotice("ofTrueTypeFont") << "FT_HAS_KERNING ? " <<  FT_HAS_KERNING(face);
	//------------------------------------------------------

	nCharacters = (bFullCharacterSet ? 256 : 128) - NUM_CHARACTER_TO_START;

	//--------------- initialize character info and textures
	cps.resize(nCharacters);

	if(bMakeContours){
		charOutlines.assign(nCharacters, ofTTFCharacter());
		charOutlinesNonVFlipped.assign(nCharacters, ofTTFCharacter());
		charOutlinesContour.assign(nCharacters, ofTTFCharacter());
		charOutlinesNonVFlippedContour.assign(nCharacters, ofTTFCharacter());
	}else{
		charOutlines.resize(1);
	}

	vector<ofPixels> expanded_data(nCharacters);

	long areaSum=0;
	FT_Error err;


	//--------------------- load each char -----------------------
	for (int i = 0 ; i < nCharacters; i++){

		//------------------------------------------ anti aliased or not:
		int glyph = (unsigned char)(i+NUM_CHARACTER_TO_START);
		if (glyph == 0xA4) glyph = 0x20AC; // hack to load the euro sign, all codes in 8859-15 match with utf-32 except for this one
		err = FT_Load_Glyph( face, FT_Get_Char_Index( face, glyph ), bAntiAliased ?  FT_LOAD_FORCE_AUTOHINT : FT_LOAD_DEFAULT );
        if(err){
			ofLogError("ofTrueTypeFont") << "loadFont(): FT_Load_Glyph failed for char " << i << ": FT_Error " << err;

		}

		if (bAntiAliased == true) FT_Render_Glyph(face->glyph, FT_RENDER_MODE_NORMAL);
		else FT_Render_Glyph(face->glyph, FT_RENDER_MODE_MONO);

		//------------------------------------------


		if(bMakeContours){
			if(printVectorInfo){
				ofLogNotice("ofTrueTypeFont") <<  "character " << char(i+NUM_CHARACTER_TO_START);
			}

			//int character = i + NUM_CHARACTER_TO_START;
			charOutlines[i] = makeContoursForCharacter( face );
			charOutlinesContour[i] = charOutlines[i];
			charOutlinesContour[i].setFilled(false);
			charOutlinesContour[i].setStrokeWidth(1);

			charOutlinesNonVFlipped[i] = charOutlines[i];
			charOutlinesNonVFlipped[i].translate(ofVec3f(0,cps[i].height));
			charOutlinesNonVFlipped[i].scale(1,-1);
			charOutlinesNonVFlippedContour[i] = charOutlines[i];
			charOutlinesNonVFlippedContour[i].setFilled(false);
			charOutlinesNonVFlippedContour[i].setStrokeWidth(1);


			if(simplifyAmt>0){
				charOutlines[i].simplify(simplifyAmt);
				charOutlinesNonVFlipped[i].simplify(simplifyAmt);
				charOutlinesContour[i].simplify(simplifyAmt);
				charOutlinesNonVFlippedContour[i].simplify(simplifyAmt);
			}
		}


		// -------------------------
		// info about the character:
		FT_Bitmap& bitmap= face->glyph->bitmap;
		int width  = bitmap.width;
		int height = bitmap.rows;

		cps[i].characterIndex	= i;
		cps[i].glyph			= glyph;
		cps[i].height 			= face->glyph->metrics.height>>6;
		cps[i].width 			= face->glyph->metrics.width>>6;
		cps[i].bearingX			= face->glyph->metrics.horiBearingX>>6;
		cps[i].bearingY			= face->glyph->metrics.horiBearingY>>6;
		cps[i].xmin				= face->glyph->bitmap_left;
		cps[i].xmax				= cps[i].xmin + cps[i].width;
		cps[i].ymin				= -face->glyph->bitmap_top;
		cps[i].ymax				= cps[i].ymin + cps[i].height;
		cps[i].advance			= face->glyph->metrics.horiAdvance>>6;


		cps[i].tW				= cps[i].width;
		cps[i].tH				= cps[i].height;


		areaSum += (cps[i].tW+border*2)*(cps[i].tH+border*2);

		if(width==0 || height==0) continue;

		// Allocate Memory For The Texture Data.
		expanded_data[i].allocate(width, height, OF_PIXELS_GRAY_ALPHA);
		//-------------------------------- clear data:
		expanded_data[i].set(0,255); // every luminance pixel = 255
		expanded_data[i].set(1,0);


		if (bAntiAliased == true){
			ofPixels bitmapPixels;
			bitmapPixels.setFromExternalPixels(bitmap.buffer,bitmap.width,bitmap.rows,OF_PIXELS_GRAY);
			expanded_data[i].setChannel(1,bitmapPixels);
		} else {
			//-----------------------------------
			// true type packs monochrome info in a
			// 1-bit format, hella funky
			// here we unpack it:
			unsigned char *src =  bitmap.buffer;
			for(unsigned int j=0; j <bitmap.rows;j++) {
				unsigned char b=0;
				unsigned char *bptr =  src;
				for(unsigned int k=0; k < bitmap.width ; k++){
					expanded_data[i][2*(k+j*width)] = 255;

					if (k%8==0){
						b = (*bptr++);
					}

					expanded_data[i][2*(k+j*width) + 1] = b&0x80 ? 255 : 0;
					b <<= 1;
				}
				src += bitmap.pitch;
			}
			//-----------------------------------
		}
	}

	vector<charProps> sortedCopy = cps;
	sort(sortedCopy.begin(),sortedCopy.end(),&compare_cps);

	// pack in a texture, algorithm to calculate min w/h from
	// http://upcommons.upc.edu/pfc/bitstream/2099.1/7720/1/TesiMasterJonas.pdf
	//ofLogNotice("ofTrueTypeFont") << "loadFont(): areaSum: " << areaSum

	bool packed = false;
	float alpha = logf(areaSum)*1.44269;

	int w;
	int h;
	while(!packed){
		w = pow(2,floor((alpha/2.f) + 0.5)); // there doesn't seem to be a round in cmath for windows.
		//w = pow(2,round(alpha/2.f));
		h = w;//pow(2,round(alpha - round(alpha/2.f)));
		int x=0;
		int y=0;
		int maxRowHeight = sortedCopy[0].tH + border*2;
		for(int i=0;i<(int)cps.size();i++){
			if(x+sortedCopy[i].tW + border*2>w){
				x = 0;
				y += maxRowHeight;
				maxRowHeight = sortedCopy[i].tH + border*2;
				if(y + maxRowHeight > h){
					alpha++;
					break;
				}
			}
			x+= sortedCopy[i].tW + border*2;
			if(i==(int)cps.size()-1) packed = true;
		}

	}



	ofPixels atlasPixelsLuminanceAlpha;
	atlasPixelsLuminanceAlpha.allocate(w,h,OF_PIXELS_GRAY_ALPHA);
	atlasPixelsLuminanceAlpha.set(0,255);
	atlasPixelsLuminanceAlpha.set(1,0);


	int x=0;
	int y=0;
	int maxRowHeight = sortedCopy[0].tH + border*2;
	for(int i=0;i<(int)cps.size();i++){
		ofPixels & charPixels = expanded_data[sortedCopy[i].characterIndex];

		if(x+sortedCopy[i].tW + border*2>w){
			x = 0;
			y += maxRowHeight;
			maxRowHeight = sortedCopy[i].tH + border*2;
		}

		cps[sortedCopy[i].characterIndex].t1		= float(x + border)/float(w);
		cps[sortedCopy[i].characterIndex].v1		= float(y + border)/float(h);
		cps[sortedCopy[i].characterIndex].t2		= float(cps[sortedCopy[i].characterIndex].tW + x + border)/float(w);
		cps[sortedCopy[i].characterIndex].v2		= float(cps[sortedCopy[i].characterIndex].tH + y + border)/float(h);
		charPixels.pasteInto(atlasPixelsLuminanceAlpha,x+border,y+border);
		x+= sortedCopy[i].tW + border*2;
	}
	texAtlas.allocate(atlasPixelsLuminanceAlpha,false);
	texAtlas.setRGToRGBASwizzles(true);

	if(bAntiAliased && fontSize>20){
		texAtlas.setTextureMinMagFilter(GL_LINEAR,GL_LINEAR);
	}else{
		texAtlas.setTextureMinMagFilter(GL_NEAREST,GL_NEAREST);
	}
	texAtlas.loadData(atlasPixelsLuminanceAlpha);

	// ------------- close the library and typeface
  	bLoadedOk = true;
	return true;
}
예제 #2
0
//-----------------------------------------------------------
bool ofTrueTypeFont::loadFont(string _filename, int _fontSize, bool _bAntiAliased, bool _bFullCharacterSet, bool _makeContours, float _simplifyAmt, int _dpi) {

	initLibraries();

	//------------------------------------------------
	if (bLoadedOk == true){

		// we've already been loaded, try to clean up :
		unloadTextures();
	}
	//------------------------------------------------

	if( _dpi == 0 ){
		_dpi = ttfGlobalDpi;
	}



	bLoadedOk 			= false;
	bAntiAliased 		= _bAntiAliased;
	bFullCharacterSet 	= _bFullCharacterSet;
	fontSize			= _fontSize;
	bMakeContours 		= _makeContours;
	simplifyAmt			= _simplifyAmt;
	dpi 				= _dpi;

	//--------------- load the library and typeface


	FT_Face face;
	if(!loadFontFace(_filename,_fontSize,face,filename)){
        return false;
	}


	FT_Set_Char_Size( face, fontSize << 6, fontSize << 6, dpi, dpi);
	lineHeight = fontSize * 1.43f;

	//------------------------------------------------------
	//kerning would be great to support:
	//ofLogNotice("ofTrueTypeFont") << "FT_HAS_KERNING ? " <<  FT_HAS_KERNING(face);
	//------------------------------------------------------

	nCharacters = (bFullCharacterSet ? 256 : 128) - NUM_CHARACTER_TO_START;

	//--------------- initialize character info and textures
	cps.resize(nCharacters);

	if(bMakeContours){
		charOutlines.clear();
		charOutlines.assign(nCharacters, ofTTFCharacter());
		charOutlinesNonVFlipped.assign(nCharacters, ofTTFCharacter());
	}

	vector<ofPixels> expanded_data(nCharacters);

	long areaSum=0;
	FT_Error err;


	//--------------------- load each char -----------------------
	for (int i = 0 ; i < nCharacters; i++){

		//------------------------------------------ anti aliased or not:
		int glyph = (unsigned char)(i+NUM_CHARACTER_TO_START);
		if (glyph == 0xA4) glyph = 0x20AC; // hack to load the euro sign, all codes in 8859-15 match with utf-32 except for this one
		err = FT_Load_Glyph( face, FT_Get_Char_Index( face, glyph ), FT_LOAD_DEFAULT );
        if(err){
			ofLogError("ofTrueTypeFont") << "loadFont(): FT_Load_Glyph failed for char " << i << ": FT_Error " << err;

		}

		if (bAntiAliased == true) FT_Render_Glyph(face->glyph, FT_RENDER_MODE_NORMAL);
		else FT_Render_Glyph(face->glyph, FT_RENDER_MODE_MONO);

		//------------------------------------------
		FT_Bitmap& bitmap= face->glyph->bitmap;


		// prepare the texture:
		/*int width  = ofNextPow2( bitmap.width + border*2 );
		int height = ofNextPow2( bitmap.rows  + border*2 );


		// ------------------------- this is fixing a bug with small type
		// ------------------------- appearantly, opengl has trouble with
		// ------------------------- width or height textures of 1, so we
		// ------------------------- we just set it to 2...
		if (width == 1) width = 2;
		if (height == 1) height = 2;*/


		if(bMakeContours){
			if(printVectorInfo){
				ofLogNotice("ofTrueTypeFont") <<  "character " << char(i+NUM_CHARACTER_TO_START);
			}

			//int character = i + NUM_CHARACTER_TO_START;
			charOutlines[i] = makeContoursForCharacter( face );

			charOutlinesNonVFlipped[i] = charOutlines[i];
			charOutlinesNonVFlipped[i].translate(ofVec3f(0,cps[i].height));
			charOutlinesNonVFlipped[i].scale(1,-1);


			if(simplifyAmt>0)
				charOutlines[i].simplify(simplifyAmt);
			charOutlines[i].getTessellation();

			if(simplifyAmt>0)
				charOutlinesNonVFlipped[i].simplify(simplifyAmt);
			charOutlinesNonVFlipped[i].getTessellation();
		}


		// -------------------------
		// info about the character:
		cps[i].character		= i;
		cps[i].height 			= face->glyph->bitmap_top;
		cps[i].width 			= face->glyph->bitmap.width;
		cps[i].setWidth 		= face->glyph->advance.x >> 6;
		cps[i].topExtent 		= face->glyph->bitmap.rows;
		cps[i].leftExtent		= face->glyph->bitmap_left;

		int width  = cps[i].width;
		int height = bitmap.rows;


		cps[i].tW				= width;
		cps[i].tH				= height;



		GLint fheight	= cps[i].height;
		GLint bwidth	= cps[i].width;
		GLint top		= cps[i].topExtent - cps[i].height;
		GLint lextent	= cps[i].leftExtent;

		GLfloat	corr, stretch;

		//this accounts for the fact that we are showing 2*visibleBorder extra pixels
		//so we make the size of each char that many pixels bigger
		stretch = 0;//(float)(visibleBorder * 2);

		corr	= (float)(( (fontSize - fheight) + top) - fontSize);

		cps[i].x1		= lextent + bwidth + stretch;
		cps[i].y1		= fheight + corr + stretch;
		cps[i].x2		= (float) lextent;
		cps[i].y2		= -top + corr;


		// Allocate Memory For The Texture Data.
		expanded_data[i].allocate(width, height, 2);
		//-------------------------------- clear data:
		expanded_data[i].set(0,255); // every luminance pixel = 255
		expanded_data[i].set(1,0);


		if (bAntiAliased == true){
			ofPixels bitmapPixels;
			bitmapPixels.setFromExternalPixels(bitmap.buffer,bitmap.width,bitmap.rows,1);
			expanded_data[i].setChannel(1,bitmapPixels);
		} else {
			//-----------------------------------
			// true type packs monochrome info in a
			// 1-bit format, hella funky
			// here we unpack it:
			unsigned char *src =  bitmap.buffer;
			for(int j=0; j <bitmap.rows;j++) {
				unsigned char b=0;
				unsigned char *bptr =  src;
				for(int k=0; k < bitmap.width ; k++){
					expanded_data[i][2*(k+j*width)] = 255;

					if (k%8==0){
						b = (*bptr++);
					}

					expanded_data[i][2*(k+j*width) + 1] = b&0x80 ? 255 : 0;
					b <<= 1;
				}
				src += bitmap.pitch;
			}
			//-----------------------------------
		}

		areaSum += (cps[i].width+border*2)*(cps[i].height+border*2);
	}

	vector<charProps> sortedCopy = cps;
	sort(sortedCopy.begin(),sortedCopy.end(),&compare_cps);

	// pack in a texture, algorithm to calculate min w/h from
	// http://upcommons.upc.edu/pfc/bitstream/2099.1/7720/1/TesiMasterJonas.pdf
	//ofLogNotice("ofTrueTypeFont") << "loadFont(): areaSum: " << areaSum

	bool packed = false;
	float alpha = logf(areaSum)*1.44269;

	int w;
	int h;
	while(!packed){
		w = pow(2,floor((alpha/2.f) + 0.5)); // there doesn't seem to be a round in cmath for windows.
		//w = pow(2,round(alpha/2.f));
		h = w;//pow(2,round(alpha - round(alpha/2.f)));
		int x=0;
		int y=0;
		int maxRowHeight = sortedCopy[0].tH + border*2;
		for(int i=0;i<(int)cps.size();i++){
			if(x+sortedCopy[i].tW + border*2>w){
				x = 0;
				y += maxRowHeight;
				maxRowHeight = sortedCopy[i].tH + border*2;
				if(y + maxRowHeight > h){
					alpha++;
					break;
				}
			}
			x+= sortedCopy[i].tW + border*2;
			if(i==(int)cps.size()-1) packed = true;
		}

	}



	ofPixels atlasPixelsLuminanceAlpha;
	atlasPixelsLuminanceAlpha.allocate(w,h,2);
	atlasPixelsLuminanceAlpha.set(0,255);
	atlasPixelsLuminanceAlpha.set(1,0);


	int x=0;
	int y=0;
	int maxRowHeight = sortedCopy[0].tH + border*2;
	for(int i=0;i<(int)cps.size();i++){
		ofPixels & charPixels = expanded_data[sortedCopy[i].character];

		if(x+sortedCopy[i].tW + border*2>w){
			x = 0;
			y += maxRowHeight;
			maxRowHeight = sortedCopy[i].tH + border*2;
		}

		cps[sortedCopy[i].character].t2		= float(x + border)/float(w);
		cps[sortedCopy[i].character].v2		= float(y + border)/float(h);
		cps[sortedCopy[i].character].t1		= float(cps[sortedCopy[i].character].tW + x + border)/float(w);
		cps[sortedCopy[i].character].v1		= float(cps[sortedCopy[i].character].tH + y + border)/float(h);
		charPixels.pasteInto(atlasPixelsLuminanceAlpha,x+border,y+border);
		x+= sortedCopy[i].tW + border*2;
	}

	ofPixels atlasPixels;
	atlasPixels.allocate(atlasPixelsLuminanceAlpha.getWidth(),atlasPixelsLuminanceAlpha.getHeight(),4);
	atlasPixels.setChannel(0,atlasPixelsLuminanceAlpha.getChannel(0));
	atlasPixels.setChannel(1,atlasPixelsLuminanceAlpha.getChannel(0));
	atlasPixels.setChannel(2,atlasPixelsLuminanceAlpha.getChannel(0));
	atlasPixels.setChannel(3,atlasPixelsLuminanceAlpha.getChannel(1));
	texAtlas.allocate(atlasPixels,false);

	if(bAntiAliased && fontSize>20){
		texAtlas.setTextureMinMagFilter(GL_LINEAR,GL_LINEAR);
	}else{
		texAtlas.setTextureMinMagFilter(GL_NEAREST,GL_NEAREST);
	}
	texAtlas.loadData(atlasPixels);

	// ------------- close the library and typeface
	FT_Done_Face(face);
  	bLoadedOk = true;
	return true;
}
bool ofTrueTypeFont::load(const ofTtfSettings & _settings){
	#if defined(TARGET_ANDROID)
	ofAddListener(ofxAndroidEvents().unloadGL,this,&ofTrueTypeFont::unloadTextures);
	ofAddListener(ofxAndroidEvents().reloadGL,this,&ofTrueTypeFont::reloadTextures);
	#endif

	initLibraries();
	settings = _settings;
	if( settings.dpi == 0 ){
		settings.dpi = ttfGlobalDpi;
	}

	bLoadedOk = false;

	//--------------- load the library and typeface
	FT_Face loadFace;
	if(!loadFontFace(settings.fontName,settings.fontSize,loadFace,settings.fontName)){
		return false;
	}
	face = std::shared_ptr<struct FT_FaceRec_>(loadFace,FT_Done_Face);

	if(settings.ranges.empty()){
		settings.ranges.push_back(ofUnicode::Latin1Supplement);
	}
	int border = 1;


	FT_Set_Char_Size( face.get(), settings.fontSize << 6, settings.fontSize << 6, settings.dpi, settings.dpi);
	fontUnitScale = (float(settings.fontSize * settings.dpi)) / (72 * face->units_per_EM);
	lineHeight = face->height * fontUnitScale;
	ascenderHeight = face->ascender * fontUnitScale;
	descenderHeight = face->descender * fontUnitScale;
	glyphBBox.set(face->bbox.xMin * fontUnitScale,
				   face->bbox.yMin * fontUnitScale,
				  (face->bbox.xMax - face->bbox.xMin) * fontUnitScale,
				  (face->bbox.yMax - face->bbox.yMin) * fontUnitScale);

	//--------------- initialize character info and textures
	auto nGlyphs = std::accumulate(settings.ranges.begin(), settings.ranges.end(), 0u,
			[](uint32_t acc, ofUnicode::range range){
				return acc + range.getNumGlyphs();
			});
	cps.resize(nGlyphs);
	if(settings.contours){
		charOutlines.resize(nGlyphs);
		charOutlinesNonVFlipped.resize(nGlyphs);
		charOutlinesContour.resize(nGlyphs);
		charOutlinesNonVFlippedContour.resize(nGlyphs);
	}else{
		charOutlines.resize(1);
	}

	vector<ofTrueTypeFont::glyph> all_glyphs;

	uint32_t areaSum=0;

	//--------------------- load each char -----------------------
	auto i = 0u;
	for(auto & range: settings.ranges){
		for (uint32_t g = range.begin; g <= range.end; g++, i++){
			all_glyphs.push_back(loadGlyph(g));
			all_glyphs[i].props.characterIndex	= i;
			glyphIndexMap[g] = i;
			cps[i] = all_glyphs[i].props;
			areaSum += (cps[i].tW+border*2)*(cps[i].tH+border*2);

			if(settings.contours){
				if(printVectorInfo){
					std::string str;
					ofAppendUTF8(str,g);
					ofLogNotice("ofTrueTypeFont") <<  "character " << str;
				}

				//int character = i + NUM_CHARACTER_TO_START;
				charOutlines[i] = makeContoursForCharacter( face.get() );
				charOutlinesContour[i] = charOutlines[i];
				charOutlinesContour[i].setFilled(false);
				charOutlinesContour[i].setStrokeWidth(1);

				charOutlinesNonVFlipped[i] = charOutlines[i];
				charOutlinesNonVFlipped[i].translate(ofVec3f(0,cps[i].height));
				charOutlinesNonVFlipped[i].scale(1,-1);
				charOutlinesNonVFlippedContour[i] = charOutlines[i];
				charOutlinesNonVFlippedContour[i].setFilled(false);
				charOutlinesNonVFlippedContour[i].setStrokeWidth(1);


				if(settings.simplifyAmt>0){
					charOutlines[i].simplify(settings.simplifyAmt);
					charOutlinesNonVFlipped[i].simplify(settings.simplifyAmt);
					charOutlinesContour[i].simplify(settings.simplifyAmt);
					charOutlinesNonVFlippedContour[i].simplify(settings.simplifyAmt);
				}
			}
		}
	}

	vector<ofTrueTypeFont::glyphProps> sortedCopy = cps;
	sort(sortedCopy.begin(),sortedCopy.end(),[](const ofTrueTypeFont::glyphProps & c1, const ofTrueTypeFont::glyphProps & c2){
		if(c1.tH == c2.tH) return c1.tW > c2.tW;
		else return c1.tH > c2.tH;
	});

	// pack in a texture, algorithm to calculate min w/h from
	// http://upcommons.upc.edu/pfc/bitstream/2099.1/7720/1/TesiMasterJonas.pdf
	//ofLogNotice("ofTrueTypeFont") << "loadFont(): areaSum: " << areaSum

	bool packed = false;
	float alpha = logf(areaSum)*1.44269f;
	int w;
	int h;
	while(!packed){
		w = pow(2,floor((alpha/2.f) + 0.5f)); // there doesn't seem to be a round in cmath for windows.
		//w = pow(2,round(alpha/2.f));
		h = w;//pow(2,round(alpha - round(alpha/2.f)));
		int x=0;
		int y=0;
		auto maxRowHeight = sortedCopy[0].tH + border*2;
		packed = true;
		for(auto & glyph: sortedCopy){
			if(x+glyph.tW + border*2>w){
				x = 0;
				y += maxRowHeight;
				maxRowHeight = glyph.tH + border*2;
				if(y + maxRowHeight > h){
					alpha++;
					packed = false;
					break;
				}
			}
			x+= glyph.tW + border*2;
		}

	}



	ofPixels atlasPixelsLuminanceAlpha;
	atlasPixelsLuminanceAlpha.allocate(w,h,OF_PIXELS_GRAY_ALPHA);
	atlasPixelsLuminanceAlpha.set(0,255);
	atlasPixelsLuminanceAlpha.set(1,0);


	int x=0;
	int y=0;
	auto maxRowHeight = sortedCopy[0].tH + border*2;
	for(auto & glyph: sortedCopy){
		ofPixels & charPixels = all_glyphs[glyph.characterIndex].pixels;

		if(x+glyph.tW + border*2>w){
			x = 0;
			y += maxRowHeight;
			maxRowHeight = glyph.tH + border*2;
		}

		cps[glyph.characterIndex].t1		= float(x + border)/float(w);
		cps[glyph.characterIndex].v1		= float(y + border)/float(h);
		cps[glyph.characterIndex].t2		= float(cps[glyph.characterIndex].tW + x + border)/float(w);
		cps[glyph.characterIndex].v2		= float(cps[glyph.characterIndex].tH + y + border)/float(h);
		charPixels.pasteInto(atlasPixelsLuminanceAlpha,x+border,y+border);
		x+= glyph.tW + border*2;
	}
	texAtlas.allocate(atlasPixelsLuminanceAlpha,false);
	texAtlas.setRGToRGBASwizzles(true);

	if(settings.antialiased && settings.fontSize>20){
		texAtlas.setTextureMinMagFilter(GL_LINEAR,GL_LINEAR);
	}else{
		texAtlas.setTextureMinMagFilter(GL_NEAREST,GL_NEAREST);
	}
	texAtlas.loadData(atlasPixelsLuminanceAlpha);
	bLoadedOk = true;
	return true;
}