From effd43bc5671009de80fb3e9cec76b1ec33201cd Mon Sep 17 00:00:00 2001
From: Luke Meyers <n.luke.meyers@gmail.com>
Date: Sun, 9 Feb 2020 20:59:59 -0800
Subject: [PATCH] Expose pixelgl.Window.SwapBuffers

Allow buffers to be swapped without polling input, offering decoupling symmetrical with that provided by UpdateInput.
---
 pixelgl/window.go | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/pixelgl/window.go b/pixelgl/window.go
index 10c16ce..239bd59 100644
--- a/pixelgl/window.go
+++ b/pixelgl/window.go
@@ -173,6 +173,13 @@ func (w *Window) Destroy() {
 
 // Update swaps buffers and polls events. Call this method at the end of each frame.
 func (w *Window) Update() {
+	w.SwapBuffers()
+	w.UpdateInput()
+}
+
+// SwapBuffers swaps buffers. Call this to swap buffers without polling window events.
+// Note that Update invokes SwapBuffers.
+func (w *Window) SwapBuffers() {
 	mainthread.Call(func() {
 		_, _, oldW, oldH := intBounds(w.bounds)
 		newW, newH := w.window.GetSize()
@@ -207,8 +214,6 @@ func (w *Window) Update() {
 		w.window.SwapBuffers()
 		w.end()
 	})
-
-	w.UpdateInput()
 }
 
 // SetClosed sets the closed flag of the Window.