Renderer: Implement Bicubic and ScaleForce filters.

src/common/settings.cpp

@@ -48,6 +48,7 @@ void LogSettings() {
     log_setting("Core_UseMultiCore", values.use_multi_core.GetValue());
     log_setting("CPU_Accuracy", values.cpu_accuracy.GetValue());
     log_setting("Renderer_UseResolutionScaling", values.resolution_setup.GetValue());
+    log_setting("Renderer_ScalingFilter", values.scaling_filter.GetValue());
     log_setting("Renderer_UseSpeedLimit", values.use_speed_limit.GetValue());
     log_setting("Renderer_SpeedLimit", values.speed_limit.GetValue());
     log_setting("Renderer_UseDiskShaderCache", values.use_disk_shader_cache.GetValue());
@@ -113,19 +114,10 @@ void UpdateRescalingInfo() {
         info.up_scale = 1;
         info.down_shift = 1;
         break;
-    case ResolutionSetup::Res3_4X:
-        info.up_scale = 3;
-        info.down_shift = 2;
-        break;
     case ResolutionSetup::Res1X:
         info.up_scale = 1;
         info.down_shift = 0;
         break;
-    case ResolutionSetup::Res3_2X: {
-        info.up_scale = 3;
-        info.down_shift = 1;
-        break;
-    }
     case ResolutionSetup::Res2X:
         info.up_scale = 2;
         info.down_shift = 0;

src/common/settings.h

@@ -54,12 +54,16 @@ enum class NvdecEmulation : u32 {
 
 enum class ResolutionSetup : u32 {
     Res1_2X = 0,
-    Res3_4X = 1,
-    Res1X = 2,
-    Res3_2X = 3,
-    Res2X = 4,
-    Res3X = 5,
-    Res4X = 6,
+    Res1X = 1,
+    Res2X = 2,
+    Res3X = 3,
+    Res4X = 4,
+};
+
+enum class ScalingFilter : u32 {
+    Bilinear = 0,
+    Bicubic = 1,
+    ScaleForce = 2,
 };
 
 struct ResolutionScalingInfo {
@@ -471,6 +475,7 @@ struct Values {
 
     ResolutionScalingInfo resolution_info{};
     Setting<ResolutionSetup> resolution_setup{ResolutionSetup::Res1X, "resolution_setup"};
+    Setting<ScalingFilter> scaling_filter{ScalingFilter::Bilinear, "scaling_filter"};
     // *nix platforms may have issues with the borderless windowed fullscreen mode.
     // Default to exclusive fullscreen on these platforms for now.
     RangedSetting<FullscreenMode> fullscreen_mode{