ofTrueTypeFont to ofVbo Texture

gistfile1.txt

class SomeClass {
  
private:
  string textString;
  ofTrueTypeFont font;
  ofTexture stringTexture;
  ofVbo vbo;

  ofMesh stringMesh;
  ofVec3f verts[VERT_BUF_NUM];
  ofFloatColor colors[VERT_BUF_NUM];

  ofVec3f position;
  float pointSizesX[VERT_BUF_NUM];
  float pointSizesY[VERT_BUF_NUM];
  float pointSizesZ[VERT_BUF_NUM];

  ofVec3f storePositions[VERT_BUF_NUM * 2];
public:
  SomeClass(){};
  ~SomeClass(){
    stringTexture.clear();
    buf.clear();
    vbo.clear();

  };
  
  
  void setup(ofTrueTypeFont &_font, string fileName) {

    textString = buf.getText();
    font = _font;
    
    if (font.isLoaded()) {
      stringMesh = font.getStringMesh(buf.getText(), -8002, -12280);
      memset(storePositions, 0, sizeof(ofVec3f) * stringMesh.getNumVertices());
      memcpy(storePositions, stringMesh.getVerticesPointer(), sizeof(ofVec3f) * stringMesh.getNumVertices());
      stringTexture = font.getFontTexture();
      if (stringTexture.isAllocated()) {
        for (int i = 0; i < VERT_BUF_NUM; i++) {
          stringMesh.addColor(ofFloatColor(1.1, 1.1, 1.1, 0.8));
          if (0 == i%4) {
            float x = (ofRandom(0, 2) * 4.0 - 2.0);
            float y = (ofRandom(0, 2) * 7.0);
            float z = 0;
            pointSizesX[i] = x;
            pointSizesX[i+1] = x;
            pointSizesX[i+2] = x;
            pointSizesX[i+3] = x;
            
            pointSizesY[i] = y;
            pointSizesY[i+1] = y;
            pointSizesY[i+2] = y;
            pointSizesY[i+3] = y;
            
            pointSizesZ[i] = z;
            pointSizesZ[i+1] = z;
            pointSizesZ[i+2] = z;
            pointSizesZ[i+3] = z;
            
          }
        }
        
        
        vbo.setMesh(stringMesh, GL_DYNAMIC_DRAW);
        
      }

    }
    
    cout << "setuped : " << stringMesh.getIndices().size() << endl;
  }
  
  void draw() {

    
    if (NULL != &stringTexture && stringTexture.isAllocated()) {
      
      
      vector<ofVec3f> targetVec = stringMesh.getVertices();
      
      /////////////////////////////
      stringTexture.bind();
      vbo.draw(GL_QUADS, 0, stringMesh.getIndices().size());
      stringTexture.unbind();
  
      /////////////////////////////
      };

    }

  }

#endif