WaterFlush/Assets/AIPagedLod/Plugins/B3dmReader/x86_64/B3dmLoader.cs

/*************************************************************************
 *  Copyright © 2018-2023 Liwen All rights reserved.
 *------------------------------------------------------------------------
 *  File         :  OsgbLoader.cs
 *  Description  :  load osgb format tile interface 
 *------------------------------------------------------------------------
 *  Author       :  Liwen
 *  Version      :  6.0.0
 *  Date         :  1/5/2019
 *  Description  :  Initial development version.
 *************************************************************************/

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.Runtime.InteropServices;
using System;

namespace AIPagedLod
{
    public class B3dmLoader
    {
#if UNITY_EDITOR
        [DllImport("3dTilesReader")]
#elif UNITY_WEBGL
        [DllImport("__Internal")]
#elif UNITY_ANDROID
        [DllImport("lib3dTilesReader")]
#else
        [DllImport("3dTilesReader")]
#endif
        public static extern IntPtr LoadB3dmFromData(ref byte data, int length);

#if UNITY_EDITOR
        [DllImport("3dTilesReader")]
#elif UNITY_WEBGL
        [DllImport("__Internal")]
#elif UNITY_ANDROID
        [DllImport("lib3dTilesReader")]
#else
        [DllImport("3dTilesReader")]
#endif
        public static extern IntPtr OpenB3dmFile(string file);

#if UNITY_EDITOR
        [DllImport("3dTilesReader")]
#elif UNITY_WEBGL
        [DllImport("__Internal")]
#elif UNITY_ANDROID
        [DllImport("lib3dTilesReader")]
#else
        [DllImport("3dTilesReader")]
#endif
        public static extern void CloseB3dmFile(IntPtr ptr);

#if UNITY_EDITOR
        [DllImport("3dTilesReader")]
#elif UNITY_WEBGL
        [DllImport("__Internal")]
#elif UNITY_ANDROID
        [DllImport("lib3dTilesReader")]
#else
        [DllImport("3dTilesReader")]
#endif
        public static extern int GetMeshCount(IntPtr ptr);

#if UNITY_EDITOR
        [DllImport("3dTilesReader")]
#elif UNITY_WEBGL
        [DllImport("__Internal")]
#elif UNITY_ANDROID
        [DllImport("lib3dTilesReader")]
#else
        [DllImport("3dTilesReader")]
#endif
        public static extern int GetVertexCount(IntPtr ptr, int index);

#if UNITY_EDITOR
        [DllImport("3dTilesReader")]
#elif UNITY_WEBGL
        [DllImport("__Internal")]
#elif UNITY_ANDROID
        [DllImport("lib3dTilesReader")]
#else
        [DllImport("3dTilesReader")]
#endif
        public static extern IntPtr GetVertexPointer(IntPtr ptr, int meshIndex, int vertexIndex);

#if UNITY_EDITOR
        [DllImport("3dTilesReader")]
#elif UNITY_WEBGL
        [DllImport("__Internal")]
#elif UNITY_ANDROID
        [DllImport("lib3dTilesReader")]
#else
        [DllImport("3dTilesReader")]
#endif
        private static extern void GetVertexs(IntPtr ptr, int meshIndex, ref float vertexs);
        public static Vector3[] GetVertexs(IntPtr ptr, int meshIndex, bool isDaJiangData)
        {
            int vertexCount = GetVertexCount(ptr, meshIndex);
            Vector3[] results = new Vector3[vertexCount];
            if (vertexCount > 0)
            {
                float[] vertexs = new float[vertexCount * 3];
                GetVertexs(ptr, meshIndex, ref vertexs[0]);
                int index = 0;
                int scaleValue = isDaJiangData ? 100000 : 1;
                for (int i = 0; i < vertexs.Length; i = i + 3)
                {
                    float cesiumX = vertexs[i];
                    float cesiumY = vertexs[i + 1];
                    float cesiumZ = vertexs[i + 2];
                    results[index] = new Vector3(cesiumX, cesiumZ, cesiumY);
                    index++;
                }
            }
            return results;
        }

#if UNITY_EDITOR
        [DllImport("3dTilesReader")]
#elif UNITY_WEBGL
        [DllImport("__Internal")]
#elif UNITY_ANDROID
        [DllImport("lib3dTilesReader")]
#else
        [DllImport("3dTilesReader")]
#endif
        public static extern int GetTriangleCount(IntPtr ptr, int meshIndex);

#if UNITY_EDITOR
        [DllImport("3dTilesReader")]
#elif UNITY_WEBGL
        [DllImport("__Internal")]
#elif UNITY_ANDROID
        [DllImport("lib3dTilesReader")]
#else
        [DllImport("3dTilesReader")]
#endif
        public static extern IntPtr GetTrianglePointer(IntPtr ptr, int meshIndex);

#if UNITY_EDITOR
        [DllImport("3dTilesReader")]
#elif UNITY_WEBGL
        [DllImport("__Internal")]
#elif UNITY_ANDROID
        [DllImport("lib3dTilesReader")]
#else
        [DllImport("3dTilesReader")]
#endif
        public static extern void GetTriangles(IntPtr ptr, int meshIndex,ref int triangles );

        public static int[] GetTriangles(IntPtr ptr, int meshIndex, bool isDaJiangData)
        {
            int count = GetTriangleCount(ptr, meshIndex);
            int[] array = new int[count];
            if (count > 0)
            {
                GetTriangles(ptr, meshIndex, ref array[0]);
                for (int i = 1; i < array.Length; i = i + 3)
                {
                    int t = array[i];
                    array[i] = array[i + 1];
                    array[i + 1] = t;
                }
            }
            return array;
        }

#if UNITY_EDITOR
        [DllImport("3dTilesReader")]
#elif UNITY_WEBGL
        [DllImport("__Internal")]
#elif UNITY_ANDROID
        [DllImport("lib3dTilesReader")]
#else
        [DllImport("3dTilesReader")]
#endif
        public static extern int GetImageSize(IntPtr ptr, int meshIndex);

#if UNITY_EDITOR
        [DllImport("3dTilesReader")]
#elif UNITY_WEBGL
        [DllImport("__Internal")]
#elif UNITY_ANDROID
        [DllImport("lib3dTilesReader")]
#else
        [DllImport("3dTilesReader")]
#endif
        public static extern IntPtr GetImagePointer(IntPtr ptr, int meshIndex);


#if UNITY_EDITOR
        [DllImport("3dTilesReader")]
#elif UNITY_WEBGL
        [DllImport("__Internal")]
#elif UNITY_ANDROID
        [DllImport("lib3dTilesReader")]
#else
        [DllImport("3dTilesReader")]
#endif
        public static extern int GetImageResolutionS(IntPtr ptr, int meshIndex);

#if UNITY_EDITOR
        [DllImport("3dTilesReader")]
#elif UNITY_WEBGL
        [DllImport("__Internal")]
#elif UNITY_ANDROID
        [DllImport("lib3dTilesReader")]
#else
        [DllImport("3dTilesReader")]
#endif
        public static extern int GetImageResolutionT(IntPtr ptr, int meshIndex);

#if UNITY_EDITOR
        [DllImport("3dTilesReader")]
#elif UNITY_WEBGL
        [DllImport("__Internal")]
#elif UNITY_ANDROID
        [DllImport("lib3dTilesReader")]
#else
        [DllImport("3dTilesReader")]
#endif
        public static extern int GetImageFormat(IntPtr ptr, int meshIndex);

#if UNITY_EDITOR
        [DllImport("3dTilesReader")]
#elif UNITY_WEBGL
        [DllImport("__Internal")]
#elif UNITY_ANDROID
        [DllImport("lib3dTilesReader")]
#else
        [DllImport("3dTilesReader")]
#endif
        private static extern void GetImageData(IntPtr ptr, int meshIndex,ref byte iamgeData);

        public static byte[] GetImageData(IntPtr ptr, int meshIndex)
        {
            int imageSize = GetImageSize(ptr,meshIndex);
            byte[] imageData = new byte[imageSize];
            if (imageSize > 0)
            {              
                GetImageData(ptr, meshIndex, ref imageData[0]);            
            }
            return imageData;
        }

#if UNITY_EDITOR
        [DllImport("3dTilesReader")]
#elif UNITY_WEBGL
        [DllImport("__Internal")]
#elif UNITY_ANDROID
        [DllImport("lib3dTilesReader")]
#else
        [DllImport("3dTilesReader")]
#endif
        public static extern int GetTexCoordCount(IntPtr ptr, int index);

#if UNITY_EDITOR
        [DllImport("3dTilesReader")]
#elif UNITY_WEBGL
        [DllImport("__Internal")]
#elif UNITY_ANDROID
        [DllImport("lib3dTilesReader")]
#else
        [DllImport("3dTilesReader")]
#endif
        public static extern IntPtr GetTexCoordPointer(IntPtr ptr, int meshIndex, int texCoordIndex);

#if UNITY_EDITOR
        [DllImport("3dTilesReader")]
#elif UNITY_WEBGL
        [DllImport("__Internal")]
#elif UNITY_ANDROID
        [DllImport("lib3dTilesReader")]
#else
        [DllImport("3dTilesReader")]
#endif
        private static extern void GetTexCoords(IntPtr ptr, int meshIndex, ref float texCoords);

        public static Vector2[] GetTexCoords(IntPtr ptr, int meshIndex)
        {
            int vertexCount = GetTexCoordCount(ptr, meshIndex);
            Vector2[] results = new Vector2[vertexCount];
            if (vertexCount > 0)
            {
                float[] texCoords = new float[vertexCount * 2];
                GetTexCoords(ptr, meshIndex, ref texCoords[0]); 
                int index = 0;
                for (int i = 0; i < texCoords.Length; i = i + 2)
                {
                    results[index] = new Vector3(texCoords[i], texCoords[i + 1]);
                    index++;
                }
            }
            return results;
        }
    }
}