redesigned display peripheral

Peripherals.hpp

@@ -1,15 +1,12 @@
 #pragma once
 
-#include <array>
 #include <bitset>
-#include <memory>
 
 namespace chocochip8 {
 
   constexpr size_t gcWidth = 128;
   constexpr size_t gcHeight = 64;
   using Scanline = std::bitset<gcWidth>;
-  using Framebuffer = std::array<Scanline, gcHeight>;
 
   enum class Key {
     KEY_0, KEY_1, KEY_2, KEY_3,
@@ -20,11 +17,9 @@ namespace chocochip8 {
 
   class Display {
   public:
-    friend class Interpreter;
-    Display(): mpFramebuffer{std::make_unique<Framebuffer>()} {}
     virtual ~Display() = default;
-  protected:
-    std::unique_ptr<Framebuffer> mpFramebuffer;
+    virtual int blit(const Scanline& spriteScanline, int y) = 0;
+    virtual void clear() = 0;
   };
 
   class Buzzer {