migra postfx a aee_arcade i elimina supersampling/downsampling

source/core/rendering/shader_backend.hpp

@@ -4,7 +4,6 @@
 
 #include <cstdint>
 #include <string>
-#include <utility>
 
 namespace Rendering {
 
@@ -24,6 +23,10 @@ namespace Rendering {
         float curvature = 0.0F;
         float bleeding = 0.0F;
         float flicker = 0.0F;
+        // Forma de les scanlines — 3 subpíxels per fila lògica per defecte.
+        float scan_dark_ratio{0.333F};
+        float scan_dark_floor{0.42F};
+        float scan_edge_soft{1.0F};
     };
 
     /**
@@ -66,15 +69,6 @@ namespace Rendering {
         virtual void setPostFXParams(const PostFXParams& /*p*/) {}
         virtual void setVSync(bool /*vsync*/) {}
         virtual void setScaleMode(bool /*integer_scale*/) {}
-        virtual void setOversample(int /*factor*/) {}
-
-        virtual void setLinearUpscale(bool /*linear*/) {}
-        [[nodiscard]] virtual auto isLinearUpscale() const -> bool { return false; }
-
-        virtual void setDownscaleAlgo(int /*algo*/) {}
-        [[nodiscard]] virtual auto getDownscaleAlgo() const -> int { return 0; }
-
-        [[nodiscard]] virtual auto getSsTextureSize() const -> std::pair<int, int> { return {0, 0}; }
 
         [[nodiscard]] virtual auto isHardwareAccelerated() const -> bool = 0;