PVRUnityExtensions.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public static class PVRUnityExtensions 
{
    public static TextureFormat GetTextureFormat(this PVRImage image){
        switch(image.pixelFormat){
            case PVRImage.PixelFormat.PVRTC_2bpp_RGB: return TextureFormat.PVRTC_RGB2;
            case PVRImage.PixelFormat.PVRTC_2bpp_RGBA: return TextureFormat.PVRTC_RGBA2;
            case PVRImage.PixelFormat.PVRTC_4bpp_RGB: return TextureFormat.PVRTC_RGB4;
            case PVRImage.PixelFormat.PVRTC_4bpp_RGBA: return TextureFormat.PVRTC_RGBA4;
            //case PVRImage.PixelFormat.PVRTCII_2bpp: return TextureFormat.
            //case PVRImage.PixelFormat.PVRTCII_4bpp: return TextureFormat.
            case PVRImage.PixelFormat.ETC1: return TextureFormat.ETC_RGB4;
            case PVRImage.PixelFormat.DXT1: return TextureFormat.DXT1;
            //case PVRImage.PixelFormat.DXT2: return TextureFormat.
            //case PVRImage.PixelFormat.DXT3: return TextureFormat.
            //case PVRImage.PixelFormat.DXT4: return TextureFormat.
            case PVRImage.PixelFormat.DXT5: return TextureFormat.DXT5;
            case PVRImage.PixelFormat.BC4: return TextureFormat.BC4;
            case PVRImage.PixelFormat.BC5: return TextureFormat.BC5;
            //case PVRImage.PixelFormat.BC6: return TextureFormat.BC6H;  //not sure about this
            case PVRImage.PixelFormat.BC7: return TextureFormat.BC7;
            //case PVRImage.PixelFormat.UYVY: return TextureFormat.
            case PVRImage.PixelFormat.YUY2: return TextureFormat.YUY2;
            //case PVRImage.PixelFormat.BW1bpp: return TextureFormat.
            //case PVRImage.PixelFormat.R9G9B9E5_Shared_Exponent: return TextureFormat.
            //case PVRImage.PixelFormat.RGBG8888: return TextureFormat.
            //case PVRImage.PixelFormat.GRGB8888: return TextureFormat.
            case PVRImage.PixelFormat.ETC2_RGB: return TextureFormat.ETC2_RGB;
            case PVRImage.PixelFormat.ETC2_RGBA: return TextureFormat.ETC2_RGBA8;
            case PVRImage.PixelFormat.ETC2_RGB_A1: return TextureFormat.ETC2_RGBA1;
            //case PVRImage.PixelFormat.EAC_R11: return TextureFormat.
            //case PVRImage.PixelFormat.EAC_RG11: return TextureFormat.
            case PVRImage.PixelFormat.ASTC_4x4: return TextureFormat.ASTC_4x4;
            //case PVRImage.PixelFormat.ASTC_5x4: return TextureFormat.ASTC
            case PVRImage.PixelFormat.ASTC_5x5: return TextureFormat.ASTC_5x5;
            //case PVRImage.PixelFormat.ASTC_6x5: return TextureFormat.
            case PVRImage.PixelFormat.ASTC_6x6: return TextureFormat.ASTC_6x6;
            //case PVRImage.PixelFormat.ASTC_8x5: return TextureFormat.
            //case PVRImage.PixelFormat.ASTC_8x6: return TextureFormat.
            case PVRImage.PixelFormat.ASTC_8x8: return TextureFormat.ASTC_8x8;
            //case PVRImage.PixelFormat.ASTC_10x5: return TextureFormat.
            //case PVRImage.PixelFormat.ASTC_10x6: return TextureFormat.
            //case PVRImage.PixelFormat.ASTC_10x8: return TextureFormat.
            case PVRImage.PixelFormat.ASTC_10x10: return TextureFormat.ASTC_10x10;
            //case PVRImage.PixelFormat.ASTC_12x10: return TextureFormat.
            case PVRImage.PixelFormat.ASTC_12x12: return TextureFormat.ASTC_12x12;
            /* case PVRImage.PixelFormat.ASTC_3x3x3: return TextureFormat.
            case PVRImage.PixelFormat.ASTC_4x3x3: return TextureFormat.
            case PVRImage.PixelFormat.ASTC_4x4x3: return TextureFormat.
            case PVRImage.PixelFormat.ASTC_4x4x4: return TextureFormat.
            case PVRImage.PixelFormat.ASTC_5x4x4: return TextureFormat.
            case PVRImage.PixelFormat.ASTC_5x5x4: return TextureFormat.
            case PVRImage.PixelFormat.ASTC_5x5x5: return TextureFormat.
            case PVRImage.PixelFormat.ASTC_6x5x5: return TextureFormat.
            case PVRImage.PixelFormat.ASTC_6x6x5: return TextureFormat.
            case PVRImage.PixelFormat.ASTC_6x6x6: return TextureFormat. */
        }
        throw new UnityException("Unsupported PixelFormat! "+image.pixelFormat.ToString());
    }

    public static bool IsValidTextureFormat(this PVRImage image){
        //it's either this or just catch an exception.
        switch((int)image.pixelFormat){
            case 0:
            case 1:
            case 2:
            case 3:
            case 6:
            case 7:
            case 11:
            case 12:
            case 13:
            case 15:
            case 17:
            case 22:
            case 23:
            case 24:
            case 27:
            case 29:
            case 31:
            case 34:
            case 38:
            case 40:
            return true;
            default:
            return false;
        }
        
    }
    
    public static Texture2D LoadIntoTexture(this PVRImage image){
        Texture2D texture = new Texture2D(image.Width,image.Height,image.GetTextureFormat(),image.MipMapCount,image.isLinear);
        image.LoadIntoTexture(texture);
        return texture;
    }
    public static void LoadIntoTexture(this PVRImage image,Texture2D texture){
        
        texture.LoadRawTextureData(image.GetTextureData());
    }
}