/*
 * Copyright 2012 ZXing.Net authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

using System;
using UnityEngine;

namespace ZXing.Rendering
{
    /// <summary>
    /// represents the generated code as a byte array with pixel data (4 byte per pixel, BGRA)
    /// </summary>
    public sealed partial class PixelData
    {
        /// <summary>
        /// converts the pixel data to a bitmap object
        /// </summary>
        /// <returns></returns>
        public Color32[] ToColor32()
        {
            var result = new Color32[Width * Height];
            var resultIndex = 0;

            for (int y = Height - 1; y >= 0; y--)
            {
                var row = y * Width * 4;
                for (int x = 0; x < Width; x++)
                {
                    var pixelIndex = row + 4 * x;
                    result[resultIndex] = new Color32(Pixels[pixelIndex + 2], Pixels[pixelIndex + 1], Pixels[pixelIndex], Pixels[pixelIndex + 3]);
                    resultIndex++;
                }
            }

            return result;
        }
    }
}
