VG-Lite Simulator（VG-Lite模拟器）

显示原文

LVGL integrates a VG-Lite simulator based on ThorVG. Its purpose is to simplify the debugging of VG-Lite adaptation and reduce the time of debugging and locating problems on hardware devices.

It has been integrated into the CI automated compilation and testing process to ensure that the VG-Lite rendering backend can be fully tested after each PR modification.

LVGL集成了一个基于ThorVG的VG-Lite模拟器。它的目的是简化VG-Lite适配的调试，并减少在硬件设备上调试和定位问题的时间。

它已经集成到CI自动化编译和测试流程中，以确保每次PR修改后VG-Lite渲染后端可以经过充分的测试。

How it works（工作原理）

显示原文

Sort out the APIs in the vg_lite.h header file provided by the vendor, re-implement the APIs using ThorVG, and simulate the same rendering images as the real hardware on the simulator.

整理供应商提供的 vg_lite.h 头文件中的APIs，使用 ThorVG 重新实现这些APIs，并在模拟器上模拟与真实硬件相同的渲染图像。

Configuration（配置）

显示原文

Enable VG-Lite rendering backend, see VG-Lite Rendering Backend.

2. Enable ThorVG and turn on the configuration LV_USE_THORVG_INTERNAL or LV_USE_THORVG_EXTERNAL. It is recommended to use the internal ThorVG library to ensure uniform rendering results.

3. Enable LV_USE_VG_LITE_THORVG and set LV_DRAW_BUF_ALIGN to 64. The rest of the options can remain default. Make sure LV_VG_LITE_USE_GPU_INIT is enabled, because the thorvg drawing context needs to be initialized before it can be used.

启用VG-Lite渲染后端，请参见 VG-Lite渲染后端。

2. 启用ThorVG并打开配置 LV_USE_THORVG_INTERNAL 或 LV_USE_THORVG_EXTERNAL。建议使用内部ThorVG库以确保统一的渲染结果。

3. 启用 LV_USE_VG_LITE_THORVG 并将 LV_DRAW_BUF_ALIGN 设置为64。其余选项可以保持默认。确保启用 LV_VG_LITE_USE_GPU_INIT 因为在使用之前需要初始化ThorVG绘图上下文