text: /*
   * Copyright (c) 2013 David Wicks, sansumbrella.com
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or
   * without modification, are permitted provided that the following
   * conditions are met:
   *
   * Redistributions of source code must retain the above copyright
   * notice, this list of conditions and the following disclaimer.
   * Redistributions in binary form must reproduce the above copyright
   * notice, this list of conditions and the following disclaimer in the
   * documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #include "pockets/TextureAtlas.h"
  #include "cinder/Json.h"
  #include "cinder/gl/Texture.h"
  
  using namespace std;
  using namespace cinder;
  using namespace pockets;
  
  TextureAtlas::TextureAtlas( const Surface &images, const ci::JsonTree &description )
  {
    gl::Texture::Format format;
    
    mTexture = gl::Texture::create( images, format );
  
    JsonTree sprites = description["sprites"];
    JsonTree meta = description["meta"];
    Vec2i bitmap_size( meta["width"].getValue<int>(), meta["height"].getValue<int>() );
    for( const auto &child : sprites )
    {
      Rectf bounds( child["x1"].getValue<int>(), child["y1"].getValue<int>()
                   , child["x2"].getValue<int>(), child["y2"].getValue<int>() );
      Vec2i registration_point( child["rx"].getValue<float>(), child["ry"].getValue<float>() );
      string id = child["id"].getValue();
      mData[ id ] = SpriteData{ { bounds.getUpperLeft() / bitmap_size, bounds.getLowerRight() / bitmap_size },
                                bounds.getSize(),
                                registration_point };
    }
  }
  
  TextureAtlasUniqueRef TextureAtlas::create(const ci::Surface &images, const ci::JsonTree &description)
  {
    return TextureAtlasUniqueRef{ new TextureAtlas{ images, description } };
  }
  