Add vendor:wgpu

vendor/wgpu/example/os_glfw.odin

@@ -0,0 +1,55 @@
+//+build !js
+package vendor_wgpu_example_triangle
+
+import "core:time"
+
+import "vendor:glfw"
+import "vendor:wgpu"
+import "vendor:wgpu/glfwglue"
+
+OS :: struct {
+	window: glfw.WindowHandle,
+}
+
+os_init :: proc(os: ^OS) {
+	if !glfw.Init() {
+		panic("[glfw] init failure")
+	}
+
+	glfw.WindowHint(glfw.CLIENT_API, glfw.NO_API)
+	os.window = glfw.CreateWindow(960, 540, "WGPU Native Triangle", nil, nil)
+
+	glfw.SetFramebufferSizeCallback(os.window, size_callback)
+}
+
+os_run :: proc(os: ^OS) {
+    dt: f32
+
+	for !glfw.WindowShouldClose(os.window) {
+		start := time.tick_now()
+
+		glfw.PollEvents()
+		frame(dt)
+
+		dt = f32(time.duration_seconds(time.tick_since(start)))
+	}
+
+	finish()
+
+	glfw.DestroyWindow(os.window)
+	glfw.Terminate()
+}
+
+os_get_render_bounds :: proc(os: ^OS) -> (width, height: u32) {
+	iw, ih := glfw.GetWindowSize(os.window)
+	return u32(iw), u32(ih)
+}
+
+os_get_surface :: proc(os: ^OS, instance: wgpu.Instance) -> wgpu.Surface {
+	return glfwglue.GetSurface(instance, os.window)
+}
+
+@(private="file")
+size_callback :: proc "c" (window: glfw.WindowHandle, width, height: i32) {
+	resize()
+}