Added abstract memory manager to be able to allocate a framebuffer la…

…yer in the RISC OS RMA and still maintain compatibility with Linux for HW acelleration via cluster

src/cpp/layer

@@ -18,12 +18,18 @@
  *      please refer to the official license documentation.
  */
 
+#include <memory> // For std::shared_ptr
+
+#include "mem_manager.hpp"
 #include "layer.hpp"
 
 // Constructor implementation
 Layer::Layer(pixel_t width, pixel_t height, std::shared_ptr<RenderStrategy> strategy)
     : width(width), height(height), opacity(1.0f), visible(true), currentRenderStrategy(strategy) {
-    pixels.resize(width * height, 0); // Initialize pixel buffer with default color (0)
+
+    // Initialize pixel buffer with default color (0)
+    pixels = static_cast<color_t*>(memoryManager->allocate(width * height * sizeof(color_t))); 
+
 }
 
 // Destructor implementation

src/hpp/layer

@@ -25,20 +25,22 @@
 #include <cstdint>
 #include <memory> // For std::shared_ptr
 
+#include "mem_manager.hpp"
 #include "render_strategy.hpp"
 
 typedef uint32_t color_t; // 32-bit color
 typedef uint32_t pixel_t; // 32-bit pixel, assuming it represents dimensions
 
 class Layer {
-private:
+  private:
     std::shared_ptr<RenderStrategy> currentRenderStrategy;
 
-public:
-    std::vector<color_t> pixels; // Pixel data for this layer
-    float opacity; // Layer opacity
-    bool visible; // Layer visibility
-    pixel_t width, height; // Dimensions of the layer
+  public:
+    color_t* pixels; // The actual layer is defined by MemoryManager interface
+    float opacity;   // Layer opacity
+    bool visible;    // Layer visibility
+    pixel_t width;   // horizontal dimension of the layer
+    pixel_t height;  // vertical dimension of the layer
 
     // Constructor and destructor
     Layer(pixel_t width, pixel_t height, std::shared_ptr<RenderStrategy> strategy);

src/hpp/mem_manager

@@ -0,0 +1,34 @@
+/*
+ * This file is part of: 
+ *      MicroFB, a minimal framebuffer library for RISC OS
+ *
+ * Description: 
+ *      This project aims to provide a simple and efficient way to manage
+ *      the framebuffer on RISC OS using C++11. It abstracts the direct 
+ *      interaction with the GraphicsV API, offering a higher-level 
+ *      interface for drawing operations and framebuffer manipulation.
+ *
+ * Author:
+ *     Paolo Fabio Zaino, all rights reserved.
+ * Distributed under License: 
+ *      CDDL v1.1 (Common Development and Distribution License Version 
+ *      1.1) The use of this project is subject to the terms of the 
+ *      CDDL v1.1. This project can be used and distributed according 
+ *      to the terms of this license. For details on the CDDL v1.1, 
+ *      please refer to the official license documentation.
+ */
+
+#ifndef MEMMANAGER_HPP
+#define MEMMANAGER_HPP
+
+#include <cstddef>
+
+// Abstracted memory manager interface
+class MemoryManager {
+  public:
+    virtual ~MemoryManager() {}
+    virtual void* allocate(size_t size) = 0;
+    virtual void deallocate(void* memory) = 0;
+};
+
+#endif // MEMMANAGER_HPP