Made Renderer a separate module

src/renderer/Window.zig

@@ -0,0 +1,64 @@
+const c = @import("c.zig");
+const std = @import("std");
+
+const Window = @This();
+
+pub const Error = error{
+    platform_unavailable,
+    platform_error,
+};
+
+pub fn getExtensions() [][*c]const u8 {
+    var extension_count: u32 = undefined;
+    const raw: [*c][*c]const u8 = c.glfwGetRequiredInstanceExtensions(&extension_count);
+    const extensions = raw[0..extension_count];
+
+    return extensions;
+}
+
+title: []const u8,
+width: usize,
+height: usize,
+raw: *c.GLFWwindow,
+
+pub fn create(width: usize, height: usize, title: []const u8) !Window {
+    if (c.glfwInit() != c.GLFW_TRUE) {
+        const status = c.glfwGetError(null);
+
+        return switch (status) {
+            c.GLFW_PLATFORM_UNAVAILABLE => Error.platform_unavailable,
+            c.GLFW_PLATFORM_ERROR => Error.platform_error,
+            else => unreachable,
+        };
+    }
+
+    c.glfwWindowHint(c.GLFW_RESIZABLE, c.GLFW_FALSE);
+    c.glfwWindowHint(c.GLFW_CLIENT_API, c.GLFW_NO_API);
+    const raw = c.glfwCreateWindow(@intCast(width), @intCast(height), title.ptr, null, null);
+    c.glfwShowWindow(raw);
+
+    return Window{
+        .title = title,
+        .width = width,
+        .height = height,
+        .raw = raw.?,
+    };
+}
+
+pub fn shouldClose(self: Window) bool {
+    return c.glfwWindowShouldClose(self.raw) == c.GLFW_TRUE;
+}
+
+pub fn size(self: Window) struct { usize, usize } {
+    var width: u32 = undefined;
+    var height: u32 = undefined;
+
+    c.glfwGetFramebufferSize(self.raw, @ptrCast(&width), @ptrCast(&height));
+
+    return .{ @intCast(width), @intCast(height) };
+}
+
+pub fn destroy(self: Window) void {
+    c.glfwDestroyWindow(self.raw);
+    c.glfwTerminate();
+}