Writing-DRI-Engine-Driver-for-Your-GPU.md

@@ -78,8 +78,8 @@ your DRI device. Generally, it is `/dev/dri/card0`.
 You can use the key `dri.pixelformat` to specify the DRM pixel format
 of the screen. We use libdrm's fourcc code to defined the pixel format
 of the screen surface in MiniGUI run-time configuration. For example,
-`XR24` means `X8R8G8B8` pixel format, and `AR32` means `A8R8G8B8` pixel
-format.
+`XR24` means `X8R8G8B8` pixel format (`DRM_FORMAT_XRGB8888`), and
+`AR24` means `A8R8G8B8` pixel format (`DRM_FORMAT_ARGB8888`).
 
 For more information, please see `<drm/drm_fourcc.h>` header file.
 Note that only 8/16/24/32 bpp RGB formats are supported.
@@ -283,6 +283,7 @@ https://github.com/VincentWei/mg-tests/tree/master/dri-engine
 In the near future, the MiniGUI team will:
 
 * Enhance `dri` engine to support MiniGUI-Processes run-time mode.
+* Enhance `dri` engine to support video plane/overlay.
 * Implement the MiniGUI back-end of `cairo` and `EGL` for OpenGL,
   OpenGL ES, and OpenVG, in order to fully exploit the GPU's 2D/3D
   accelerated rendering capabilities.