HarmonyOS 使用CAPI创建pixelmap设置pixelFormat不生效

我使用CAPI创建pixelmap转换成ArkUI_DrawableDescriptor，代码如下

OH_Pixelmap_InitializationOptions* options = nullptr;
OH_PixelmapInitializationOptions_Create(&options);
OH_PixelmapInitializationOptions_SetWidth(options, pixelMapInfo.width);
OH_PixelmapInitializationOptions_SetHeight(options, pixelMapInfo.height);
OH_PixelmapInitializationOptions_SetPixelFormat(options, pixelMapInfo.pixelFormat);
OH_PixelmapInitializationOptions_SetAlphaType(options, PIXELMAP_ALPHA_TYPE_UNKNOWN);
......
Image_ErrorCode ercode = OH_PixelmapNative_CreatePixelmap(buff_data, byte_length, options, &pixelmapNative);
ArkUI_DrawableDescriptor* drawable = OH_ArkUI_DrawableDescriptor_CreateFromPixelMap(pixelmapNative);
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这段代码无论我怎么设置PixelFormat，渲染模式始终是BGRA，我不得不手动对位图数据先进行处理