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examples: reduce the memory usage of the clock example, without -autofree & -gc boehm

pull/12441/head
Delyan Angelov 2021-11-11 17:38:45 +02:00
parent c8cb1bf6b4
commit 9cb378bb6b
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GPG Key ID: 66886C0F12D595ED
2 changed files with 5 additions and 2 deletions
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6
examples/clock/clock.v
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@ -88,11 +88,12 @@ fn on_frame(mut app App) {
} }
// Rotate a polygon round the centerpoint // 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) { 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) sa := math.sin(math.pi * angle / 180.0)
ca := math.cos(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++ { for i := 0; i < points.len / 2; i++ {
x := points[2 * i] x := points[2 * i]
y := points[2 * i + 1] 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 rotated_points << (yn + center) * dpi_scale
} }
ctx.draw_convex_poly(rotated_points, c) ctx.draw_convex_poly(rotated_points, c)
unsafe { rotated_points.free() }
} }
fn (mut app App) resize() { fn (mut app App) resize() {
@ -133,7 +135,7 @@ fn on_event(e &gg.Event, mut app App) {
.q { .q {
println('Good bye.') println('Good bye.')
// do we need to free anything here? // do we need to free anything here?
exit(0) app.gg.quit()
} }
else {} else {}
} }

1
vlib/gg/gg.v
View File

@ -237,6 +237,7 @@ fn gg_cleanup_fn(user_data voidptr) {
if g.config.cleanup_fn != voidptr(0) { if g.config.cleanup_fn != voidptr(0) {
g.config.cleanup_fn(g.config.user_data) g.config.cleanup_fn(g.config.user_data)
} }
gfx.shutdown()
} }
fn gg_fail_fn(msg &char, user_data voidptr) { fn gg_fail_fn(msg &char, user_data voidptr) {