Graphics context for example

examples/main.zig

@@ -1,5 +1,51 @@
 const std = @import("std");
+const vk = @import("vulkan");
+const c = @import("c.zig");
+const GraphicsContext = @import("graphics_context.zig").GraphicsContext;
 
-pub fn main() anyerror!void {
-    std.debug.warn("All your codebase are belong to us.\n", .{});
+const BaseDispatch = struct {
+    vkCreateInstance: vk.PfnCreateInstance,
+    usingnamespace vk.BaseWrapper(@This());
+};
+
+const InstanceDispatch = struct {
+    vkDestroyInstance: vk.PfnDestroyInstance,
+    vkCreateDevice: vk.PfnCreateDevice,
+    vkDestroySurfaceKHR: vk.PfnDestroySurfaceKHR,
+    usingnamespace vk.InstanceWrapper(@This());
+};
+
+const DeviceDispatch = struct {
+    vkDestroyDevice: vk.PfnDestroyDevice,
+    usingnamespace vk.DeviceWrapper(@This());
+};
+
+const app_name = "vulkan-zig example";
+
+const app_info = vk.ApplicationInfo{
+    .p_application_name = app_name,
+    .application_version = vk.makeVersion(0, 0, 0),
+    .p_engine_name = app_name,
+    .engine_version = vk.makeVersion(0, 0, 0),
+    .api_version = vk.API_VERSION_1_2,
+};
+
+pub fn main() !void {
+    if (c.glfwInit() != c.GLFW_TRUE) return error.GlfwInitFailed;
+    defer c.glfwTerminate();
+
+    const dim = vk.Extent2D{.width = 800, .height = 600};
+
+    c.glfwWindowHint(c.GLFW_CLIENT_API, c.GLFW_NO_API);
+    const window = c.glfwCreateWindow(
+        dim.width,
+        dim.height,
+        app_name,
+        null,
+        null
+    ) orelse return error.WindowInitFailed;
+    defer c.glfwDestroyWindow(window);
+
+    const gc = try GraphicsContext.init(std.heap.page_allocator, &app_info, window);
+    defer gc.deinit();
 }