From 9cb378bb6b29fe61a52ed9a7edc81006ea809100 Mon Sep 17 00:00:00 2001
From: Delyan Angelov <delian66@gmail.com>
Date: Thu, 11 Nov 2021 17:38:45 +0200
Subject: [PATCH] examples: reduce the memory usage of the clock example,
 without -autofree & -gc boehm

---
 examples/clock/clock.v | 6 ++++--
 vlib/gg/gg.v           | 1 +
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/examples/clock/clock.v b/examples/clock/clock.v
index 61e4430e4a..b111850f79 100644
--- a/examples/clock/clock.v
+++ b/examples/clock/clock.v
@@ -88,11 +88,12 @@ fn on_frame(mut app App) {
 }
 
 // Rotate a polygon round the centerpoint
+[manualfree]
 fn draw_convex_poly_rotate(mut ctx gg.Context, dpi_scale f32, points []f32, c gx.Color, angle f32) {
 	sa := math.sin(math.pi * angle / 180.0)
 	ca := math.cos(math.pi * angle / 180.0)
 
-	mut rotated_points := []f32{}
+	mut rotated_points := []f32{cap: points.len}
 	for i := 0; i < points.len / 2; i++ {
 		x := points[2 * i]
 		y := points[2 * i + 1]
@@ -102,6 +103,7 @@ fn draw_convex_poly_rotate(mut ctx gg.Context, dpi_scale f32, points []f32, c gx
 		rotated_points << (yn + center) * dpi_scale
 	}
 	ctx.draw_convex_poly(rotated_points, c)
+	unsafe { rotated_points.free() }
 }
 
 fn (mut app App) resize() {
@@ -133,7 +135,7 @@ fn on_event(e &gg.Event, mut app App) {
 					.q {
 						println('Good bye.')
 						// do we need to free anything here?
-						exit(0)
+						app.gg.quit()
 					}
 					else {}
 				}
diff --git a/vlib/gg/gg.v b/vlib/gg/gg.v
index 408402ffe6..1959f39833 100644
--- a/vlib/gg/gg.v
+++ b/vlib/gg/gg.v
@@ -237,6 +237,7 @@ fn gg_cleanup_fn(user_data voidptr) {
 	if g.config.cleanup_fn != voidptr(0) {
 		g.config.cleanup_fn(g.config.user_data)
 	}
+	gfx.shutdown()
 }
 
 fn gg_fail_fn(msg &char, user_data voidptr) {