From 1442378a13aae759a51976d8caa02949c70b60dd Mon Sep 17 00:00:00 2001
From: Brandon Wright <bearoso@gmail.com>
Date: Tue, 2 Aug 2016 10:31:05 -0500
Subject: [PATCH] Add option to mute sound on turbo

---
 gtk/src/gtk_config.cpp      |  6 ++++++
 gtk/src/gtk_config.h        |  1 +
 gtk/src/gtk_preferences.cpp |  2 ++
 gtk/src/gtk_s9x.cpp         | 16 ++++++++++++++++
 gtk/src/snes9x.ui           | 20 ++++++++++++++++++--
 5 files changed, 43 insertions(+), 2 deletions(-)

diff --git a/gtk/src/gtk_config.cpp b/gtk/src/gtk_config.cpp
index 861ac646..2d2585c6 100644
--- a/gtk/src/gtk_config.cpp
+++ b/gtk/src/gtk_config.cpp
@@ -139,6 +139,7 @@ Snes9xConfig::load_defaults (void)
     pause_emulation_on_switch = 0;
     num_threads = 2;
     mute_sound = FALSE;
+    mute_sound_turbo = FALSE;
     fullscreen = FALSE;
     ui_visible = TRUE;
     statusbar_visible = FALSE;
@@ -348,6 +349,7 @@ Snes9xConfig::save_config_file (void)
     xml_out_string (xml, "netplay_last_host", netplay_last_host);
 
     xml_out_int (xml, "mute_sound", mute_sound);
+    xml_out_int (xml, "mute_sound_turbo", mute_sound_turbo);
     xml_out_int (xml, "sound_buffer_size", sound_buffer_size);
     xml_out_int (xml, "sound_driver", sound_driver);
     xml_out_int (xml, "sound_input_rate", sound_input_rate);
@@ -598,6 +600,10 @@ Snes9xConfig::set_option (const char *name, const char *value)
     {
         mute_sound = atoi (value);
     }
+    else if (!strcasecmp (name, "mute_sound_turbo"))
+    {
+        mute_sound_turbo = atoi (value);
+    }
     else if (!strcasecmp (name, "16bit_sound"))
     {
         Settings.SixteenBitSound = atoi (value);
diff --git a/gtk/src/gtk_config.h b/gtk/src/gtk_config.h
index 9e8ec7c0..90514847 100644
--- a/gtk/src/gtk_config.h
+++ b/gtk/src/gtk_config.h
@@ -119,6 +119,7 @@ class Snes9xConfig
         /* Operational */
         int           sound_driver;
         int           mute_sound;
+        int           mute_sound_turbo;
         int           sound_buffer_size;
         int           sound_playback_rate;
         int           sound_input_rate;
diff --git a/gtk/src/gtk_preferences.cpp b/gtk/src/gtk_preferences.cpp
index ab8711cb..3816b9c9 100644
--- a/gtk/src/gtk_preferences.cpp
+++ b/gtk/src/gtk_preferences.cpp
@@ -660,6 +660,7 @@ Snes9xPreferences::move_settings_to_dialog (void)
     set_check ("pause_emulation_on_switch", config->pause_emulation_on_switch);
     set_spin  ("num_threads",               config->num_threads);
     set_check ("mute_sound_check",          config->mute_sound);
+    set_check ("mute_sound_turbo_check",    config->mute_sound_turbo);
     set_spin  ("sound_buffer_size",         config->sound_buffer_size);
     set_slider ("sound_input_rate",         config->sound_input_rate);
     set_check ("sync_sound",                Settings.SoundSync);
@@ -815,6 +816,7 @@ Snes9xPreferences::get_settings_from_dialog (void)
     config->sound_input_rate          = get_slider ("sound_input_rate");
     Settings.SoundSync                = get_check ("sync_sound");
     config->mute_sound                = get_check ("mute_sound_check");
+    config->mute_sound_turbo          = get_check ("mute_sound_turbo_check");
 
     store_ntsc_settings ();
     config->ntsc_scanline_intensity   = get_combo ("ntsc_scanline_intensity");
diff --git a/gtk/src/gtk_s9x.cpp b/gtk/src/gtk_s9x.cpp
index 48195ffd..98fda970 100644
--- a/gtk/src/gtk_s9x.cpp
+++ b/gtk/src/gtk_s9x.cpp
@@ -358,6 +358,22 @@ S9xIdleFunc (gpointer data)
     {
 #endif
     S9xMainLoop ();
+
+    static int muted_from_turbo = FALSE;
+    static int mute_saved_state = FALSE;
+
+    if (Settings.TurboMode && !muted_from_turbo && gui_config->mute_sound_turbo)
+    {
+        muted_from_turbo = TRUE;
+        mute_saved_state = Settings.Mute;
+    }
+
+    if (!Settings.TurboMode && muted_from_turbo)
+    {
+        muted_from_turbo = FALSE;
+        Settings.Mute = mute_saved_state;
+    }
+
     S9xMixSound ();
 
 #ifdef NETPLAY_SUPPORT
diff --git a/gtk/src/snes9x.ui b/gtk/src/snes9x.ui
index 91635b3a..5fa84a99 100644
--- a/gtk/src/snes9x.ui
+++ b/gtk/src/snes9x.ui
@@ -3983,6 +3983,22 @@
                                         <property name="position">2</property>
                                       </packing>
                                     </child>
+                                    <child>
+                                      <object class="GtkCheckButton" id="mute_sound_turbo_check">
+                                        <property name="label" translatable="yes">Mute sound when using turbo</property>
+                                        <property name="visible">True</property>
+                                        <property name="can_focus">True</property>
+                                        <property name="receives_default">False</property>
+                                        <property name="tooltip_text" translatable="yes">Disables output of sound when using turbo</property>
+                                        <property name="use_underline">True</property>
+                                        <property name="draw_indicator">True</property>
+                                      </object>
+                                      <packing>
+                                        <property name="expand">False</property>
+                                        <property name="fill">False</property>
+                                        <property name="position">3</property>
+                                      </packing>
+                                    </child>
                                     <child>
                                       <object class="GtkCheckButton" id="stereo_check">
                                         <property name="label" translatable="yes">Stereo</property>
@@ -3996,7 +4012,7 @@
                                       <packing>
                                         <property name="expand">False</property>
                                         <property name="fill">False</property>
-                                        <property name="position">3</property>
+                                        <property name="position">4</property>
                                       </packing>
                                     </child>
                                     <child>
@@ -4172,7 +4188,7 @@
                                       <packing>
                                         <property name="expand">False</property>
                                         <property name="fill">True</property>
-                                        <property name="position">4</property>
+                                        <property name="position">5</property>
                                       </packing>
                                     </child>
                                   </object>