X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=menu.c;fp=menu.c;h=e7adb5a7ba35d10c34c1cac4a65b56a3cf636d80;hb=68c85e2a0bc59b51c520e5dd97cd14fd795a9a5d;hp=f32c3ce73e1ab07281e0437e4ff7b0eab20ea281;hpb=e0bf794693c1c2384ef704e687df448168cd5170;p=libpicofe.git

diff --git a/menu.c b/menu.c
index f32c3ce..e7adb5a 100644
--- a/menu.c
+++ b/menu.c
@@ -31,13 +31,21 @@
 static char static_buff[64];
 static int  menu_error_time = 0;
 char menu_error_msg[64] = { 0, };
+// g_menuscreen is the current output buffer the menu is rendered to.
 void *g_menuscreen_ptr;
-void *g_menubg_src_ptr;
+// g_menubg is the menu background and has the same w/h as g_menuscreen, but
+// pp=w. It is filled on menu entry from file or from g_menubg_src if available.
 void *g_menubg_ptr;
+// g_menubg_src points to a buffer containing a bg image. This is usually either
+// the emulator screen buffer or the host frame buffer.
+void *g_menubg_src_ptr;
 
 int g_menuscreen_w;
 int g_menuscreen_h;
 int g_menuscreen_pp;
+int g_menubg_src_w;
+int g_menubg_src_h;
+int g_menubg_src_pp;
 
 int g_autostateld_opt;