Unity如何獲取Texture內(nèi)存大小方法詳解

在Unity中，要獲取Texture的內(nèi)存文件大小，可以使用UnityEditor.TextureUtil類中的一些函數(shù)。這些函數(shù)提供了獲取存儲(chǔ)內(nèi)存大小和運(yùn)行時(shí)內(nèi)存大小的方法。由于UnityEditor.TextureUtil是一個(gè)內(nèi)部類，我們需要使用反射來(lái)訪問它。

步驟

  • 導(dǎo)入U(xiǎn)nityEditor命名空間和System.Reflection命名空間：
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using UnityEditor;
using System.Reflection;
  • 創(chuàng)建一個(gè)函數(shù)來(lái)獲取Texture的內(nèi)存文件大?。?/li>
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public static long GetTextureFileSize(Texture2D texture)
{
????long fileSize = 0;
????// 使用反射獲取UnityEditor.TextureUtil類的Type
????Type textureUtilType = typeof(TextureImporter).Assembly.GetType("UnityEditor.TextureUtil");
????// 使用反射獲取UnityEditor.TextureUtil類的GetStorageMemorySizeLong方法
????MethodInfo getStorageMemorySizeLongMethod = textureUtilType.GetMethod("GetStorageMemorySizeLong", BindingFlags.Static | BindingFlags.Public);
????// 調(diào)用GetStorageMemorySizeLong方法獲取存儲(chǔ)內(nèi)存大小
????fileSize = (long)getStorageMemorySizeLongMethod.Invoke(null, new object[] { texture });
????return fileSize;
}
  • 創(chuàng)建一個(gè)函數(shù)來(lái)獲取Texture的運(yùn)行時(shí)內(nèi)存大?。?/li>
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public static long GetTextureRuntimeMemorySize(Texture2D texture)
{
????long memorySize = 0;
????// 使用反射獲取UnityEditor.TextureUtil類的Type
????Type textureUtilType = typeof(TextureImporter).Assembly.GetType("UnityEditor.TextureUtil");
????// 使用反射獲取UnityEditor.TextureUtil類的GetRuntimeMemorySizeLong方法
????MethodInfo getRuntimeMemorySizeLongMethod = textureUtilType.GetMethod("GetRuntimeMemorySizeLong", BindingFlags.Static | BindingFlags.Public);
????// 調(diào)用GetRuntimeMemorySizeLong方法獲取運(yùn)行時(shí)內(nèi)存大小
????memorySize = (long)getRuntimeMemorySizeLongMethod.Invoke(null, new object[] { texture });
????return memorySize;
}

示例代碼

示例 1：獲取Texture的存儲(chǔ)內(nèi)存大小

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using UnityEngine;
using UnityEditor;
using System.Reflection;
public class TextureSizeExample : MonoBehaviour
{
????[SerializeField]
????private Texture2D texture;
????private void Start()
????{
????????long fileSize = GetTextureFileSize(texture);
????????DebUG.Log("Texture File Size: " + fileSize + " bytes");
????}
????private static long GetTextureFileSize(Texture2D texture)
????{
????????long fileSize = 0;
????????Type textureUtilType = typeof(TextureImporter).Assembly.GetType("UnityEditor.TextureUtil");
????????MethodInfo getStorageMemorySizeLongMethod = textureUtilType.GetMethod("GetStorageMemorySizeLong", BindingFlags.Static | BindingFlags.Public);
????????fileSize = (long)getStorageMemorySizeLongMethod.Invoke(null, new object[] { texture });
????????return fileSize;
????}
}

示例 2：獲取Texture的運(yùn)行時(shí)內(nèi)存大小

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using UnityEngine;
using UnityEditor;
using System.Reflection;
public class TextureSizeExample : MonoBehaviour
{
????[SerializeField]
????private Texture2D texture;
????private void Start()
????{
????????long memorySize = GetTextureRuntimeMemorySize(texture);
????????Debug.Log("Texture Runtime Memory Size: " + memorySize + " bytes");
????}
????private static long GetTextureRuntimeMemorySize(Texture2D texture)
????{
????????long memorySize = 0;
????????Type textureUtilType = typeof(TextureImporter).Assembly.GetType("UnityEditor.TextureUtil");
????????MethodInfo getRuntimeMemorySizeLongMethod = textureUtilType.GetMethod("GetRuntimeMemorySizeLong", BindingFlags.Static | BindingFlags.Public);
????????memorySize = (long)getRuntimeMemorySizeLongMethod.Invoke(null, new object[] { texture });
????????return memorySize;
????}
}

示例 3：同時(shí)獲取Texture的存儲(chǔ)內(nèi)存大小和運(yùn)行時(shí)內(nèi)存大小

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using UnityEngine;
using UnityEditor;
using System.Reflection;
public class TextureSizeExample : MonoBehaviour
{
????[SerializeField]
????private Texture2D texture;
????private void Start()
????{
????????long fileSize = GetTextureFileSize(texture);
????????long memorySize = GetTextureRuntimeMemorySize(texture);
????????Debug.Log("Texture File Size: " + fileSize + " bytes");
????????Debug.Log("Texture Runtime Memory Size: " + memorySize + " bytes");
????}
????private static long GetTextureFileSize(Texture2D texture)
????{
????????long fileSize = 0;
????????Type textureUtilType = typeof(TextureImporter).Assembly.GetType("UnityEditor.TextureUtil");
????????MethodInfo getStorageMemorySizeLongMethod = textureUtilType.GetMethod("GetStorageMemorySizeLong", BindingFlags.Static | BindingFlags.Public);
????????fileSize = (long)getStorageMemorySizeLongMethod.Invoke(null, new object[] { texture });
????????return fileSize;
????}
????private static long GetTextureRuntimeMemorySize(Texture2D texture)
????{
????????long memorySize = 0;
????????Type textureUtilType = typeof(TextureImporter).Assembly.GetType("UnityEditor.TextureUtil");
????????MethodInfo getRuntimeMemorySizeLongMethod = textureUtilType.GetMethod("GetRuntimeMemorySizeLong", BindingFlags.Static | BindingFlags.Public);
????????memorySize = (long)getRuntimeMemorySizeLongMethod.Invoke(null, new object[] { texture });
????????return memorySize;
????}
}

注意事項(xiàng)

  • 確保在使用反射訪問UnityEditor.TextureUtil類之前，已經(jīng)導(dǎo)入了UnityEditor命名空間和System.Reflection命名空間。
  • 使用反射時(shí)，需要使用BindingFlags.Static | BindingFlags.Public來(lái)獲取靜態(tài)公共方法。
  • 在示例代碼中，我們使用了Texture2D類型的變量來(lái)表示Texture，你可以根據(jù)實(shí)際情況修改代碼以適應(yīng)不同的Texture類型。
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