From 1dabca6c267c2f8dfc8c0fb9269877856c00d4f1 Mon Sep 17 00:00:00 2001
From: Franklin Wei <franklin@rockbox.org>
Date: Thu, 8 Aug 2019 00:10:34 -0400
Subject: [PATCH] sdl: document some pointer voodoo

This was lifted straight from pictureflow...

Change-Id: Ie09184390e6fcea007e7daea001f075de307f878
---
 apps/plugins/sdl/main.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/apps/plugins/sdl/main.c b/apps/plugins/sdl/main.c
index 69a7e71d11..4ae640356d 100644
--- a/apps/plugins/sdl/main.c
+++ b/apps/plugins/sdl/main.c
@@ -196,6 +196,8 @@ enum plugin_status plugin_start(const void *param)
     size_t sz;
     audiobuf = rb->plugin_get_audio_buffer(&sz);
 #if (CONFIG_PLATFORM & PLATFORM_NATIVE)
+    /* We are loaded as an overlay towards the end of the audio
+     * buffer. We must take care not to overwrite ourselves. */
     if ((uintptr_t)audiobuf < (uintptr_t)plugin_start_addr)
     {
         uint32_t tmp_size = (uintptr_t)plugin_start_addr - (uintptr_t)audiobuf;