message: fix the bug of not mapping depth24 to depth32 on iOS platform when stencil is enabled
diff: @@ -229,6 +229,8 @@ inline MTLPixelFormat getMetalFormat(TextureFormat format) noexcept {
  case TextureFormat::DEPTH32F: return MTLPixelFormatDepth32Float;
  #if !defined(IOS)
  case TextureFormat::DEPTH24_STENCIL8: return MTLPixelFormatDepth24Unorm_Stencil8;
  +#else
  + case TextureFormat::DEPTH24_STENCIL8: return MTLPixelFormatDepth32Float_Stencil8;
  #endif
  case TextureFormat::DEPTH32F_STENCIL8: return MTLPixelFormatDepth32Float_Stencil8;
  