From f619a4b85ec3d052a9845cce25e272288618ca13 Mon Sep 17 00:00:00 2001
From: whitequark <whitequark@whitequark.org>
Date: Fri, 21 Oct 2016 20:50:18 +0000
Subject: [PATCH] GTK: add a no-op glXSwapBuffers call for apitrace.

Apitrace uses swapping buffers to determine frame boundaries; before
this commit, everything solvespace renders gets put into a single
frame. Since we don't use double-buffered rendering, the call does
nothing (and is legal to perform), but apitrace output becomes
readable.
---
 .gitignore               | 2 +-
 src/platform/gtkmain.cpp | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/.gitignore b/.gitignore
index dd7a50b8..4f301d00 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,7 +2,7 @@
 /build*/
 /test/**/*.diff.*
 /test/**/*.curr.*
-*.trace # OpenGL apitrace files
+*.trace
 /debian/tmp/
 /debian/*.log
 /debian/*.substvars
diff --git a/src/platform/gtkmain.cpp b/src/platform/gtkmain.cpp
index 1560e28a..7cada7e4 100644
--- a/src/platform/gtkmain.cpp
+++ b/src/platform/gtkmain.cpp
@@ -324,6 +324,8 @@ protected:
         cr->paint();
         surface->finish();
 
+        glXSwapBuffers(_xdisplay, _xwindow);
+
         return true;
     }