Separate vulkan code into gpu module

gpu.h

@@ -0,0 +1,50 @@
+#ifndef GPU_H
+#define GPU_H
+
+#define GLFW_INCLUDE_VULKAN
+#include <GLFW/glfw3.h>
+
+#define SWAPCHAIN_IMG_BUFFER_SIZE 4
+
+typedef struct {
+	float position[2], colour[3];
+} vertex_t;
+
+typedef struct {
+	VkInstance inst;
+	VkSurfaceKHR surface;
+	VkPhysicalDevice physical_dev;
+	VkDevice dev;
+	VkQueue queue;
+	VkSwapchainKHR swapchain;
+	VkExtent2D swapchain_extent;
+	uint32_t swapchain_img_count;
+	VkImageView swapchain_img_views[SWAPCHAIN_IMG_BUFFER_SIZE];
+	VkFramebuffer framebuffers[SWAPCHAIN_IMG_BUFFER_SIZE];
+	VkShaderModule vert_shader;
+	VkShaderModule frag_shader;
+	VkPipelineLayout pipeline_layout;
+	VkRenderPass render_pass;
+	VkPipeline pipeline;
+	VkCommandPool cmd_pool;
+	VkCommandBuffer cmd_buf;
+	VkFence in_flight;
+	VkSemaphore render_fin;
+	VkSemaphore img_avail;
+	VkBuffer vertex_buf;
+	VkDeviceMemory vertex_buf_mem;
+	size_t vertex_data_size;
+} gpu_ctx_t;
+
+typedef struct {
+	const char *application_name;
+	GLFWwindow *window;
+	const vertex_t *vertex_data;
+	size_t vertex_data_size;
+} gpu_config_t;
+
+void gpu_init(gpu_ctx_t *ctx, const gpu_config_t *config);
+void gpu_cleanup(const gpu_ctx_t *ctx);
+void gpu_render(const gpu_ctx_t *ctx);
+
+#endif