gui/themes: Add support of BGM.

- Some small improvement and comment added.
gui/setting: Check for recent theme updates to avoid unnecessary processing.
config & gui/settings dialog: Add control of bgm volume.
- Change start screen delay max to 5 min.

vita3k/config/include/config/config.h

@@ -89,6 +89,7 @@ enum ScreenshotFormat {
     code(std::string, "audio-backend", "SDL", audio_backend)                                            \
     code(int, "audio-volume", 100, audio_volume)                                                        \
     code(bool, "ngs-enable", true, ngs_enable)                                                          \
+    code(int,  "bgm-volume", 100, bgm_volume) 													        \
     code(int, "sys-button", static_cast<int>(SCE_SYSTEM_PARAM_ENTER_BUTTON_CROSS), sys_button)          \
     code(int, "sys-lang", static_cast<int>(SCE_SYSTEM_PARAM_LANG_ENGLISH_US), sys_lang)                 \
     code(int, "sys-date-format", (int)SCE_SYSTEM_PARAM_DATE_FORMAT_MMDDYYYY, sys_date_format)           \

vita3k/gui/CMakeLists.txt

@@ -50,6 +50,6 @@ add_library(
 )
 
 target_include_directories(gui PUBLIC include ${CMAKE_SOURCE_DIR}/vita3k)
-target_link_libraries(gui PUBLIC app compat config dialog emuenv ime imgui lang regmgr np)
-target_link_libraries(gui PRIVATE audio cppcommon ctrl kernel miniz psvpfsparser pugixml::pugixml stb renderer packages sdl2 touch vkutil host::dialog concurrentqueue)
+target_link_libraries(gui PUBLIC app codec compat config dialog emuenv ime imgui lang regmgr np)
+target_link_libraries(gui PRIVATE audio cubeb cppcommon ctrl kernel miniz psvpfsparser pugixml::pugixml stb renderer packages sdl2 touch vkutil host::dialog concurrentqueue)
 target_link_libraries(gui PUBLIC tracy)

vita3k/gui/include/gui/functions.h

@@ -69,6 +69,7 @@ void init(GuiState &gui, EmuEnvState &emuenv);
 void init_app_background(GuiState &gui, EmuEnvState &emuenv, const std::string &app_path);
 void init_app_icon(GuiState &gui, EmuEnvState &emuenv, const std::string &app_path);
 void init_apps_icon(GuiState &gui, EmuEnvState &emuenv, const std::vector<gui::App> &app_list);
+void init_bgm_player(const float vol);
 void init_config(GuiState &gui, EmuEnvState &emuenv, const std::string &app_path);
 void init_content_manager(GuiState &gui, EmuEnvState &emuenv);
 vfs::FileBuffer init_default_icon(GuiState &gui, EmuEnvState &emuenv);
@@ -103,6 +104,9 @@ void save_apps_cache(GuiState &gui, EmuEnvState &emuenv);
 void save_user(GuiState &gui, EmuEnvState &emuenv, const std::string &user_id);
 void set_config(GuiState &gui, EmuEnvState &emuenv, const std::string &app_path);
 void set_shaders_compiled_display(GuiState &gui, EmuEnvState &emuenv);
+void set_bgm_volume(const float volume);
+void stop_bgm_theme();
+void switch_bgm_state(const bool pause);
 void update_app(GuiState &gui, EmuEnvState &emuenv, const std::string &app_path);
 void update_last_time_app_used(GuiState &gui, EmuEnvState &emuenv, const std::string &app);
 void update_live_area_current_open_apps_list(GuiState &gui, EmuEnvState &emuenv, const std::string &app_path);

vita3k/gui/src/gui.cpp

@@ -524,6 +524,7 @@ void init_home(GuiState &gui, EmuEnvState &emuenv) {
     }
 
     init_app_background(gui, emuenv, "NPXS10015");
+    init_bgm_player(emuenv.cfg.bgm_volume / 100.f);
 
     regmgr::init_regmgr(emuenv.regmgr, emuenv.pref_path);
 

vita3k/gui/src/home_screen.cpp

@@ -144,6 +144,7 @@ void pre_load_app(GuiState &gui, EmuEnvState &emuenv, bool live_area, const std:
 }
 
 void pre_run_app(GuiState &gui, EmuEnvState &emuenv, const std::string &app_path) {
+    switch_bgm_state(true);
     const auto is_sys = app_path.starts_with("NPXS") && (app_path != "NPXS10007");
     if (!is_sys) {
         if (emuenv.io.app_path != app_path) {
@@ -213,6 +214,7 @@ void close_system_app(GuiState &gui, EmuEnvState &emuenv) {
             gui.vita_area.information_bar = true;
         gui.vita_area.home_screen = true;
     }
+    switch_bgm_state(false);
 }
 
 void close_and_run_new_app(GuiState &gui, EmuEnvState &emuenv, const std::string &app_path) {
@@ -544,6 +546,7 @@ void draw_home_screen(GuiState &gui, EmuEnvState &emuenv) {
                 gui.vita_area.home_screen = false;
                 gui.vita_area.information_bar = true;
                 gui.vita_area.start_screen = true;
+                switch_bgm_state(true);
             }
         }
     }

vita3k/gui/src/settings.cpp

@@ -47,19 +47,25 @@ struct Theme {
 
 static std::map<std::string, Theme> themes_info;
 static std::vector<std::pair<std::string, time_t>> themes_list;
-
+static time_t last_update_themes = 0;
 static void get_themes_list(GuiState &gui, EmuEnvState &emuenv) {
-    gui.themes_preview.clear();
-    themes_info.clear();
-    themes_list.clear();
-
     const auto theme_path{ emuenv.pref_path / "ux0/theme" };
     const auto fw_theme_path{ emuenv.pref_path / "vs0/data/internal/theme" };
     if ((!fs::exists(fw_theme_path) || fs::is_empty(fw_theme_path)) && (!fs::exists(theme_path) || fs::is_empty(theme_path))) {
         LOG_WARN("Theme path is empty");
         return;
     }
 
+    // Check if the theme has been updated recently to avoid unnecessary updates
+    if ((fs::last_write_time(theme_path) < last_update_themes) && (fs::last_write_time(fw_theme_path) < last_update_themes)) {
+        LOG_INFO("No updates found for themes list. Last updated:\n{}", std::ctime(&last_update_themes));
+        return;
+    }
+
+    gui.themes_preview.clear();
+    themes_info.clear();
+    themes_list.clear();
+
     std::string user_lang;
     const auto sys_lang = static_cast<SceSystemParamLang>(emuenv.cfg.sys_lang);
     switch (sys_lang) {
@@ -180,6 +186,8 @@ static void get_themes_list(GuiState &gui, EmuEnvState &emuenv) {
             }
         }
     }
+
+    last_update_themes = time(0);
 }
 
 static std::string popup, menu, sub_menu, selected, title, delete_user_background, delete_theme;

vita3k/gui/src/settings_dialog.cpp

@@ -380,6 +380,7 @@ static void save_config(GuiState &gui, EmuEnvState &emuenv) {
         app::update_viewport(emuenv);
     }
 
+    set_bgm_volume(emuenv.cfg.bgm_volume / 100.f);
     config::serialize_config(emuenv.cfg, emuenv.cfg.config_path);
 }
 
@@ -813,6 +814,8 @@ void draw_settings_dialog(GuiState &gui, EmuEnvState &emuenv) {
         ImGui::Checkbox(lang.audio["enable_ngs_support"].c_str(), &config.ngs_enable);
         SetTooltipEx(lang.audio["ngs_description"].c_str());
         ImGui::Spacing();
+        ImGui::SliderInt("Bgm Volume", &emuenv.cfg.bgm_volume, 0, 100, "%d %%", ImGuiSliderFlags_AlwaysClamp);
+        SetTooltipEx("Adjusts the background music volume percentage of the theme");
         ImGui::Separator();
         ImGui::Spacing();
         ImGui::EndTabItem();
@@ -1065,7 +1068,7 @@ void draw_settings_dialog(GuiState &gui, EmuEnvState &emuenv) {
             SetTooltipEx(lang.gui["select_delay_background"].c_str());
         }
         ImGui::Spacing();
-        ImGui::SliderInt(lang.gui["delay_start"].c_str(), &emuenv.cfg.delay_start, 10, 60);
+        ImGui::SliderInt(lang.gui["delay_start"].c_str(), &emuenv.cfg.delay_start, 10, 300);
         SetTooltipEx(lang.gui["select_delay_start"].c_str());
         ImGui::EndTabItem();
     } else