From bae91cdb1d5320d42f3b637c22d026e3cff64248 Mon Sep 17 00:00:00 2001
From: Lior Halphon <LIJI32@gmail.com>
Date: Fri, 26 Feb 2021 01:04:24 +0200
Subject: [PATCH] Add RTC option to the SDL port, fix a bug where rewind
 setting didn't update

---
 SDL/gui.c  | 15 +++++++++++++++
 SDL/gui.h  |  1 +
 SDL/main.c |  3 +++
 3 files changed, 19 insertions(+)

diff --git a/SDL/gui.c b/SDL/gui.c
index 92d9479..580a3f6 100644
--- a/SDL/gui.c
+++ b/SDL/gui.c
@@ -482,11 +482,26 @@ static void toggle_bootrom(unsigned index)
     }
 }
 
+static void toggle_rtc_mode(unsigned index)
+{
+    configuration.rtc_mode = !configuration.rtc_mode;
+}
+
+const char *current_rtc_mode_string(unsigned index)
+{
+    switch (configuration.rtc_mode) {
+        case GB_RTC_MODE_SYNC_TO_HOST: return "Sync to System Clock";
+        case GB_RTC_MODE_ACCURATE: return "Accurate";
+    }
+    return "";
+}
+
 static const struct menu_item emulation_menu[] = {
     {"Emulated Model:", cycle_model, current_model_string, cycle_model_backwards},
     {"SGB Revision:", cycle_sgb_revision, current_sgb_revision_string, cycle_sgb_revision_backwards},
     {"Boot ROMs Folder:", toggle_bootrom, current_bootrom_string, toggle_bootrom},
     {"Rewind Length:", cycle_rewind, current_rewind_string, cycle_rewind_backwards},
+    {"Real Time Clock:", toggle_rtc_mode, current_rtc_mode_string, toggle_rtc_mode},
     {"Back", return_to_root_menu},
     {NULL,}
 };
diff --git a/SDL/gui.h b/SDL/gui.h
index 8d69ec3..5db7aff 100644
--- a/SDL/gui.h
+++ b/SDL/gui.h
@@ -116,6 +116,7 @@ typedef struct {
     uint8_t color_temperature;
     char bootrom_path[4096];
     uint8_t interference_volume;
+    GB_rtc_mode_t rtc_mode;
 } configuration_t;
 
 extern configuration_t configuration;
diff --git a/SDL/main.c b/SDL/main.c
index 4f10ae9..d10590d 100644
--- a/SDL/main.c
+++ b/SDL/main.c
@@ -125,6 +125,8 @@ static void open_menu(void)
     GB_set_border_mode(&gb, configuration.border_mode);
     update_palette();
     GB_set_highpass_filter_mode(&gb, configuration.highpass_mode);
+    GB_set_rewind_length(&gb, configuration.rewind_length);
+    GB_set_rtc_mode(&gb, configuration.rtc_mode);
     if (previous_width != GB_get_screen_width(&gb)) {
         screen_size_changed();
     }
@@ -513,6 +515,7 @@ restart:
         }
         GB_set_highpass_filter_mode(&gb, configuration.highpass_mode);
         GB_set_rewind_length(&gb, configuration.rewind_length);
+        GB_set_rtc_mode(&gb, configuration.rtc_mode);
         GB_set_update_input_hint_callback(&gb, handle_events);
         GB_apu_set_sample_callback(&gb, gb_audio_callback);
     }