From 767a46c4599656f4e9d50a7adb7168d622379fb1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=98yvind=20Kol=C3=A5s?= <pippin@gimp.org>
Date: Thu, 24 Aug 2023 20:15:13 +0200
Subject: [PATCH] py,ui: only create one compositing group for
ViewTransitionBlend
ctx.start_group and ctx.end_group are expensive calls creating an off-screen
32bpp rendering texture, redirecting rendering to it, and rendering this
result back to the screen.
---
python_payload/st3m/ui/view.py | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/python_payload/st3m/ui/view.py b/python_payload/st3m/ui/view.py
index 90aef9e574..4c1801e224 100644
--- a/python_payload/st3m/ui/view.py
+++ b/python_payload/st3m/ui/view.py
@@ -87,13 +87,11 @@ class ViewTransitionBlend(ViewTransition):
def draw(
self, ctx: Context, transition: float, incoming: Responder, outgoing: Responder
) -> None:
- ctx.start_group()
outgoing.draw(ctx)
- ctx.end_group()
ctx.start_group()
- ctx.global_alpha = transition
incoming.draw(ctx)
+ ctx.global_alpha = transition
ctx.end_group()
--
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