#include "BaseSurface.h"

namespace ofx {
namespace piMapper {

BaseSurface::BaseSurface() {
  ofEnableNormalizedTexCoords();
  createDefaultTexture();
}
  
  BaseSurface::~BaseSurface() {
    delete defaultSource;
    defaultSource = NULL;
    defaultTexture.clear();
  }

void BaseSurface::createDefaultTexture() {
  ofPixels pixels;
  pixels.allocate(500, 500, 1);
  for (int i = 0; i < pixels.size(); i++) {
    pixels[i] = 255;
  }
  int squareSize = 10;  // size of each test pattern square
  bool sy = false;
  for (int y = 0; y < pixels.getWidth(); y += squareSize) {
    bool sx = false;
    for (int x = 0; x < pixels.getHeight(); x += squareSize) {
      for (int yi = 0; yi < squareSize; yi++) {
        for (int xi = 0; xi < squareSize; xi++) {
          if (sx && sy)
            pixels[(y + yi) * pixels.getWidth() + x + xi] = 255;
          else if (sx && !sy)
            pixels[(y + yi) * pixels.getWidth() + x + xi] = 0;
          else if (!sx && sy)
            pixels[(y + yi) * pixels.getWidth() + x + xi] = 0;
          else
            pixels[(y + yi) * pixels.getWidth() + x + xi] = 255;
        }
      }
      sx = !sx;
    }
    sy = !sy;
  }

  // load pixels into texture
  defaultTexture.loadData(pixels);
  // Create new source to be the default
  defaultSource = new BaseSource(&defaultTexture);
  source = defaultSource;
}

void BaseSurface::drawTexture(ofVec2f position) {
  if (source->getTexture() == NULL) {
    ofLogWarning("BaseSurface") << "Source texture empty. Not drawing.";
    return;
  }
  
  ofMesh texMesh;
  texMesh.addVertex(position);
  texMesh.addVertex(position + ofVec2f(source->getTexture()->getWidth(), 0.0f));
  texMesh.addVertex(position +
                    ofVec2f(source->getTexture()->getWidth(), source->getTexture()->getHeight()));
  texMesh.addVertex(position + ofVec2f(0.0f, source->getTexture()->getHeight()));
  texMesh.addTriangle(0, 2, 3);
  texMesh.addTriangle(0, 1, 2);
  texMesh.addTexCoord(ofVec2f(0.0f, 0.0f));
  texMesh.addTexCoord(ofVec2f(1.0f, 0.0f));
  texMesh.addTexCoord(ofVec2f(1.0f, 1.0f));
  texMesh.addTexCoord(ofVec2f(0.0f, 1.0f));
  source->getTexture()->bind();
  texMesh.draw();
  source->getTexture()->unbind();
}

  //void BaseSurface::setTexture(ofTexture* texturePtr) { texture = texturePtr; }
  void BaseSurface::setSource(BaseSource* newSource) {
    source = newSource;
  }

  //ofTexture* BaseSurface::getTexture() { return texture; }
  BaseSource* BaseSurface::getSource() {
    return source;
  }

  //ofTexture* BaseSurface::getDefaultTexture() { return &defaultTexture; }
  BaseSource* BaseSurface::getDefaultSource() {
    return defaultSource;
  }
}
}