more memory stuff

cve_model.cpp

@@ -0,0 +1,34 @@
+#include "cve_model.hpp"
+
+#include <cassert>
+#include <cstring>
+
+namespace cve {
+
+    CveModel::CveModel(CveDevice &device, const std::vector<Vertex> &verticies) : cveDevice{device} {
+        createVertexBuffers(verticies);
+    }
+
+    CveModel::~CveModel() {
+        vkDestroyBuffer(cveDevice.device(), vertexBuffer, nullptr);
+        vkFreeMemory(cveDevice.device(), vertexBufferMemory, nullptr);
+    }
+
+    void CveModel::createVertexBuffers(const std::vector<Vertex> &verticies) {
+        vertexCount = static_cast<uint32_t>(verticies.size());
+        assert(vertexCount >= 3 && "Vertex count must be at least 3");
+        VkDeviceSize bufferSize = sizeof(verticies[0]) * vertexCount;
+        cveDevice.createBuffer(
+            bufferSize,
+            VK_BUFFER_USAGE_VERTEX_BUFFER_BIT,
+            VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT,
+            vertexBuffer,
+            vertexBufferMemory
+        );
+
+        void *data;
+        vkMapMemory(cveDevice.device(), vertexBufferMemory, 0, bufferSize, 0, &data);
+        memcpy(data, verticies.data(), static_cast<size_t>(bufferSize));
+        vkUnmapMemory(cveDevice.device(), vertexBufferMemory);
+    }
+}

cve_model.hpp

@@ -1,11 +1,24 @@
 #pragma once
 
+#include <vector>
+
 #include "cve_device.hpp"
 
+#define GLM_FORCE_RADIANS
+#define GLM_FORCE_DEPTH_ZERO_TO_ONE
+#include <glm/glm.hpp>
+
 namespace cve {
   class CveModel {
     public:
-        CveModel();
+
+      struct Vertex {
+        glm::vec2 position;
+        static std::vector<VkVertexInputBindingDescription> getBindingDescriptions();
+        static std::vector<VkVertexInputAttributeDescription> getAttributeDescriptions();
+      };
+
+      CveModel(CveDevice &device, const std::vector<Vertex> &verticies);
       ~CveModel();
 
       CveModel(const CveModel &) = delete;
@@ -13,7 +26,10 @@ namespace cve {
 
       void bind(VkCommandBuffer commandBuffer);
       void draw(VkCommandBuffer commandBuffer);
+
     private:
+      void createVertexBuffers(const std::vector<Vertex> &verticies);
+
       CveDevice &cveDevice;
       VkBuffer vertexBuffer;
       VkDeviceMemory vertexBufferMemory;