From f06158497378e091d701bb1db7d5606e187c3ed8 Mon Sep 17 00:00:00 2001
From: kub <derkub@gmail.com>
Date: Sun, 9 Feb 2025 19:45:33 +0100
Subject: [PATCH] fix multiple redraw events (only handle last one)

---
 in_sdl.c   | 9 +++++++--
 plat_sdl.c | 8 ++++++++
 plat_sdl.h | 1 +
 3 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/in_sdl.c b/in_sdl.c
index 9bde4fd..43d44c5 100644
--- a/in_sdl.c
+++ b/in_sdl.c
@@ -26,6 +26,7 @@ struct in_sdl_state {
 	int axis_keydown[2];
 #ifdef SDL_REDRAW_EVT
 	int rdraw;
+	SDL_Event redraw;
 #endif
 	keybits_t keystate[SDLK_LAST / KEYBITS_WORD_BITS + 1];
 	// emulator keys should always be processed immediately lest one is lost
@@ -382,8 +383,10 @@ static int collect_events(struct in_sdl_state *state, int *one_kc, int *one_down
 						break;
 					default:
 #ifdef SDL_REDRAW_EVT
-						state->rdraw |= (one_kc != NULL &&
-							event->type == SDL_VIDEORESIZE);
+						if (event->type == SDL_VIDEORESIZE) {
+							state->rdraw = 1;
+							state->redraw = *event;
+						} else
 #endif
 						if (ext_event_handler != NULL)
 							ext_event_handler(event);
@@ -403,6 +406,8 @@ static int collect_events(struct in_sdl_state *state, int *one_kc, int *one_down
 #ifdef SDL_REDRAW_EVT
 	// if the event queue has been emptied and resize events were in it
 	if (state->rdraw && count == 0) {
+		if (ext_event_handler != NULL)
+			ext_event_handler(&state->redraw);
 		state->rdraw = 0;
 		// dummy key event to force returning from the key loop,
 		// so the application has a chance to redraw the window
diff --git a/plat_sdl.c b/plat_sdl.c
index f90827a..2c983d7 100644
--- a/plat_sdl.c
+++ b/plat_sdl.c
@@ -154,6 +154,8 @@ int plat_sdl_change_video_mode(int w, int h, int force)
         plat_sdl_screen->w != win_w || plat_sdl_screen->h != win_h)
       plat_sdl_screen = SDL_SetVideoMode(win_w, win_h, 16, flags);
     screen_flags = flags;
+    window_w = win_w;
+    window_h = win_h;
     if (plat_sdl_screen == NULL) {
       fprintf(stderr, "SDL_SetVideoMode failed: %s\n", SDL_GetError());
       return -1;
@@ -383,4 +385,10 @@ int plat_sdl_is_windowed(void)
 {
   return window_b != 0;
 }
+
+int plat_sdl_is_fullscreen(void)
+{
+  // consider window title bar and screen menu here
+  return window_w >= fs_w && window_h >= fs_h - 2*window_b;
+}
 // vim:shiftwidth=2:expandtab
diff --git a/plat_sdl.h b/plat_sdl.h
index 13e5197..5e6016d 100644
--- a/plat_sdl.h
+++ b/plat_sdl.h
@@ -8,6 +8,7 @@ extern void (*plat_sdl_quit_cb)(void);
 
 int plat_sdl_init(void);
 int plat_sdl_is_windowed(void);
+int plat_sdl_is_fullscreen(void);
 int plat_sdl_change_video_mode(int w, int h, int force);
 void plat_sdl_overlay_clear(void);
 void plat_sdl_event_handler(void *event_);
-- 
2.39.5