using System;
using UnityEngine;

namespace Funique
{
    [Obsolete("This will delete after 1.2")]
    public class GPU_Texture2D
    {
        public Texture texture;

        public int inWidth;

        public int inHeight;

        public int outWidth;

        public int outHeight;

        private ComputeShader comShader;

        private RenderTexture inRTexture;

        private RenderTexture outRTexture;

        public GPU_Texture2D(ComputeShader shader, int width, int height)
        {
            inWidth = width;
            inHeight = height;
            outWidth = (int)((float)(width * 3) / 4f);
            outHeight = (int)((float)(height * 4) / 3f);
            comShader = shader;
            inRTexture = new RenderTexture(width, height, 24);
            inRTexture.enableRandomWrite = true;
            inRTexture.Create();
            outRTexture = new RenderTexture(outWidth, outHeight, 24);
            outRTexture.enableRandomWrite = true;
            outRTexture.Create();
        }

        public void GPU_Apply()
        {
            Graphics.Blit(texture, inRTexture);
            int kernelIndex = comShader.FindKernel("CSMain");
            int num = Mathf.Max(inWidth, inHeight, outWidth, outHeight);
            comShader.SetInt("inWidth", inWidth);
            comShader.SetInt("inHeight", inHeight);
            comShader.SetInt("outWidth", outWidth);
            comShader.SetInt("outHeight", outHeight);
            comShader.SetTexture(kernelIndex, "inRTexture", inRTexture);
            comShader.SetTexture(kernelIndex, "outRTexture", outRTexture);
            comShader.Dispatch(kernelIndex, num / 8, num / 8, 1);
            texture = outRTexture;
            RenderTexture.active = null;
        }
    }
}