Fix android VolatileTexture memory leak when addImage(img,k,fmt)

Author: halx99

core/renderer/TextureCache.cpp

@@ -531,7 +531,7 @@ Texture2D* TextureCache::addImage(Image* image, std::string_view key, PixelForma
         if (it != _textures.end())
         {
             texture = it->second;
-            break;
+            return texture;
         }
 
         texture = new Texture2D();
@@ -850,10 +850,14 @@ void VolatileTextureMgr::addImage(Texture2D* tt, Image* image)
         return;
 
     VolatileTexture* vt = findVolotileTexture(tt);
-    image->retain();
-    vt->_uiImage         = image;
-    vt->_cashedImageType = VolatileTexture::kImage;
-    vt->_pixelFormat     = tt->getPixelFormat();
+    
+    if(vt->_uiImage != image) {
+        AX_SAFE_RELEASE(vt->_uiImage);
+        image->retain();
+        vt->_uiImage         = image;
+        vt->_cashedImageType = VolatileTexture::kImage;
+        vt->_pixelFormat     = tt->getPixelFormat();
+    }
 }
 
 VolatileTexture* VolatileTextureMgr::findVolotileTexture(Texture2D* tt)