settings: Add AspectRatio enum, split res scale function

src/common/settings.cpp

@@ -207,9 +207,7 @@ const char* TranslateCategory(Category category) {
     return "Miscellaneous";
 }
 
-void UpdateRescalingInfo() {
-    const auto setup = values.resolution_setup.GetValue();
-    auto& info = values.resolution_info;
+void TranslateResolutionInfo(ResolutionSetup setup, ResolutionScalingInfo& info) {
     info.downscale = false;
     switch (setup) {
     case ResolutionSetup::Res1_2X:
@@ -269,6 +267,12 @@ void UpdateRescalingInfo() {
     info.active = info.up_scale != 1 || info.down_shift != 0;
 }
 
+void UpdateRescalingInfo() {
+    const auto setup = values.resolution_setup.GetValue();
+    auto& info = values.resolution_info;
+    TranslateResolutionInfo(setup, info);
+}
+
 void RestoreGlobalState(bool is_powered_on) {
     // If a game is running, DO NOT restore the global settings state
     if (is_powered_on) {

src/common/settings.h

@@ -525,6 +525,7 @@ std::string GetTimeZoneString(TimeZone time_zone);
 
 void LogSettings();
 
+void TranslateResolutionInfo(ResolutionSetup setup, ResolutionScalingInfo& info);
 void UpdateRescalingInfo();
 
 // Restore the global state of all applicable settings in the Values struct

src/common/settings_enums.h

@@ -146,6 +146,8 @@ ENUM(AntiAliasing, None, Fxaa, Smaa, MaxEnum);
 
 ENUM(AspectRatio, R16_9, R4_3, R21_9, R16_10, Stretch);
 
+ENUM(ScreenshotAspectRatio, Auto, R16_9, R4_3, R21_9, R16_10);
+
 template <typename Type>
 inline std::string CanonicalizeEnum(Type id) {
     const auto group = EnumMetadata<Type>::Canonicalizations();