Add 'Suspend Screensaver Enable Hint'

driver.c

@@ -571,7 +571,8 @@ static void init_video_input(void)
             (g_settings.video.rotation + g_extern.system.rotation) % 4);
 
    if (driver.video->suppress_screensaver)
-      driver.video->suppress_screensaver(driver.video_data, true);
+      driver.video->suppress_screensaver(driver.video_data,
+            g_settings.ui.suspend_screensaver_enable);
 
    if (!driver.input)
    {

general.h

@@ -182,6 +182,7 @@ struct settings
    struct
    {
       bool menubar_enable;
+      bool suspend_screensaver_enable;
    } ui;
 
 #ifdef HAVE_MENU

retroarch.cfg

@@ -585,6 +585,12 @@
 # Filter files being show in 'Load Content' by supported extensions
 # menu_navigation_browser_filter_supported_extensions_enable = true
 
+#### UI
+
+# Suspends the screensaver if set to true. Is a hint that does not necessarily have to be honored
+# by video driver.
+# suspend_screensaver_enable  = true
+
 #### Camera
 
 # Override the default camera device the camera driver uses. This is driver dependant.

settings.c

@@ -517,6 +517,7 @@ static void config_set_defaults(void)
 #endif
 
    g_settings.ui.menubar_enable = true;
+   g_settings.ui.suspend_screensaver_enable = true;
 
    g_settings.location.allow = false;
    g_settings.camera.allow = false;
@@ -1295,6 +1296,7 @@ static bool config_load_file(const char *path, bool set_defaults)
    }
 
    CONFIG_GET_BOOL(ui.menubar_enable, "ui_menubar_enable");
+   CONFIG_GET_BOOL(ui.suspend_screensaver_enable, "suspend_screensaver_enable");
    CONFIG_GET_BOOL(fps_show, "fps_show");
    CONFIG_GET_BOOL(fps_monitor_enable, "fps_monitor_enable");
    CONFIG_GET_BOOL(load_dummy_on_core_shutdown, "load_dummy_on_core_shutdown");
@@ -1778,6 +1780,7 @@ bool config_save_file(const char *path)
          g_settings.load_dummy_on_core_shutdown);
    config_set_bool(conf,  "fps_show", g_settings.fps_show);
    config_set_bool(conf,  "ui_menubar_enable", g_settings.ui.menubar_enable);
+   config_set_bool(conf,  "suspend_screensaver_enable", g_settings.ui.suspend_screensaver_enable);
    config_set_bool(conf,  "fps_monitor_enable", g_settings.fps_monitor_enable);
    config_set_path(conf,  "libretro_path", g_settings.libretro);
    config_set_path(conf,  "libretro_directory", g_settings.libretro_directory);

settings_data.c

@@ -5387,6 +5387,18 @@ static bool setting_data_append_list_ui_options(
          general_write_handler,
          general_read_handler);
 
+   CONFIG_BOOL(
+         g_settings.ui.suspend_screensaver_enable,
+         "suspend_screensaver_enable",
+         "Suspend Screensaver Enable Hint",
+         true,
+         "OFF",
+         "ON",
+         group_info.name,
+         subgroup_info.name,
+         general_write_handler,
+         general_read_handler);
+
    END_SUB_GROUP(list, list_info);
 
    END_GROUP(list, list_info);