From d93bfe62dea0374ed2c5aa3d3040e590341cdbbf Mon Sep 17 00:00:00 2001
From: Lars Brinkhoff <lars@nocrew.org>
Date: Wed, 8 Jul 2020 08:28:35 +0200
Subject: [PATCH] VIDEO: Add API for querying and setting fullscreen mode.

---
 sim_video.c | 26 ++++++++++++++++++++++++++
 sim_video.h |  2 ++
 2 files changed, 28 insertions(+)

diff --git a/sim_video.c b/sim_video.c
index 7138d65f..e8237b90 100644
--- a/sim_video.c
+++ b/sim_video.c
@@ -1404,6 +1404,20 @@ if (SDL_SemWait (vid_mouse_events.sem) == 0) {
     }
 }
 
+t_bool vid_is_fullscreen (void)
+{
+    return SDL_GetWindowFlags (vid_window) & SDL_WINDOW_FULLSCREEN_DESKTOP;
+}
+
+t_stat vid_set_fullscreen (t_bool flag)
+{
+if (flag)
+    SDL_SetWindowFullscreen (vid_window, SDL_WINDOW_FULLSCREEN_DESKTOP);
+else
+    SDL_SetWindowFullscreen (vid_window, 0);
+return SCPE_OK;
+}
+
 void vid_update (void)
 {
 SDL_Rect vid_dst;
@@ -2368,4 +2382,16 @@ t_stat vid_screenshot (const char *filename)
 sim_printf ("video support unavailable\n");
 return SCPE_NOFNC|SCPE_NOMESSAGE;
 }
+
+t_bool vid_is_fullscreen (void)
+{
+sim_printf ("video support unavailable\n");
+return FALSE;
+}
+
+t_stat vid_set_fullscreen (t_bool flag)
+{
+sim_printf ("video support unavailable\n");
+return SCPE_OK;
+}
 #endif /* defined(USE_SIM_VIDEO) */
diff --git a/sim_video.h b/sim_video.h
index d1c04977..1e232ee5 100644
--- a/sim_video.h
+++ b/sim_video.h
@@ -198,6 +198,8 @@ t_stat vid_show_release_key (FILE* st, UNIT* uptr, int32 val, CONST void* desc);
 t_stat vid_show_video (FILE* st, UNIT* uptr, int32 val, CONST void* desc);
 t_stat vid_show (FILE* st, DEVICE *dptr,  UNIT* uptr, int32 val, CONST char* desc);
 t_stat vid_screenshot (const char *filename);
+t_bool vid_is_fullscreen (void);
+t_stat vid_set_fullscreen (t_bool flag);
 
 extern t_bool vid_active;
 void vid_set_cursor_position (int32 x, int32 y);        /* cursor position (set by calling code) */