mGUI: Add mute (closes #1494)

CHANGES

@@ -2,6 +2,7 @@
 Features:
  - e-Reader card scanning
  - Add WebP and APNG recording
+ - Add mute option in homebrew ports
  - Support for unlicensed Pokemon Jade/Diamond Game Boy mapper
  - Support for unlicensed BBD Game Boy mapper
  - Support for unlicensed Hitek Game Boy mapper

src/feature/gui/gui-config.c

@@ -81,6 +81,16 @@ void mGUIShowConfig(struct mGUIRunner* runner, struct GUIMenuItem* extra, size_t
 		},
 		.nStates = 2
 	};
+	*GUIMenuItemListAppend(&menu.items) = (struct GUIMenuItem) {
+		.title = "Mute",
+		.data = "mute",
+		.submenu = 0,
+		.state = false,
+		.validStates = (const char*[]) {
+			"Off", "On"
+		},
+		.nStates = 2
+	};
 	*GUIMenuItemListAppend(&menu.items) = (struct GUIMenuItem) {
 		.title = "Use BIOS if found",
 		.data = "useBios",
@@ -91,10 +101,12 @@ void mGUIShowConfig(struct mGUIRunner* runner, struct GUIMenuItem* extra, size_t
 		},
 		.nStates = 2
 	};
+#ifdef M_CORE_GBA
 	*GUIMenuItemListAppend(&menu.items) = (struct GUIMenuItem) {
 		.title = "Select GBA BIOS path",
 		.data = "gba.bios",
 	};
+#endif
 #ifdef M_CORE_GB
 	*GUIMenuItemListAppend(&menu.items) = (struct GUIMenuItem) {
 		.title = "Select GB BIOS path",

src/feature/gui/gui-runner.c

@@ -56,6 +56,7 @@ static const struct mInputPlatformInfo _mGUIKeyInfo = {
 		[mGUI_INPUT_SCREENSHOT] = "Take screenshot",
 		[mGUI_INPUT_FAST_FORWARD_HELD] = "Fast forward (held)",
 		[mGUI_INPUT_FAST_FORWARD_TOGGLE] = "Fast forward (toggle)",
+		[mGUI_INPUT_MUTE_TOGGLE] = "Mute (toggle)",
 	},
 	.nKeys = GUI_INPUT_MAX
 };
@@ -490,6 +491,11 @@ void mGUIRun(struct mGUIRunner* runner, const char* path) {
 					runner->setFrameLimiter(runner, true);
 				}
 			}
+			if (guiKeys & (1 << mGUI_INPUT_MUTE_TOGGLE)) {
+				int mute = !runner->core->opts.mute;
+				mCoreConfigSetUIntValue(&runner->config, "mute", mute);
+				runner->core->reloadConfigOption(runner->core, "mute", &runner->config);
+			}
 			uint16_t keys = runner->pollGameInput(runner);
 			if (runner->prepareForFrame) {
 				runner->prepareForFrame(runner);

src/feature/gui/gui-runner.h

@@ -23,7 +23,8 @@ enum mGUIInput {
 	mGUI_INPUT_SCREEN_MODE,
 	mGUI_INPUT_SCREENSHOT,
 	mGUI_INPUT_FAST_FORWARD_HELD,
-	mGUI_INPUT_FAST_FORWARD_TOGGLE
+	mGUI_INPUT_FAST_FORWARD_TOGGLE,
+	mGUI_INPUT_MUTE_TOGGLE,
 };
 
 struct mGUIBackground {