From 5061d29926e54cdf7c02d1f92eec9193edbfcee4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20Vondru=C5=A1?= <mosra@centrum.cz>
Date: Fri, 22 Apr 2016 11:19:30 +0200
Subject: [PATCH] Platform: don't set swap inteval implicitly in
 GlfwApplication.

---
 src/Magnum/Platform/GlfwApplication.cpp | 5 ++++-
 src/Magnum/Platform/GlfwApplication.h   | 8 ++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/Magnum/Platform/GlfwApplication.cpp b/src/Magnum/Platform/GlfwApplication.cpp
index cad349cb0..9bcd6dbe1 100644
--- a/src/Magnum/Platform/GlfwApplication.cpp
+++ b/src/Magnum/Platform/GlfwApplication.cpp
@@ -136,7 +136,6 @@ bool GlfwApplication::tryCreateContext(const Configuration& configuration) {
     glfwSetScrollCallback(_window, staticMouseScrollEvent);
 
     glfwMakeContextCurrent(_window);
-    glfwSwapInterval(1);
 
     /* Return true if the initialization succeeds */
     return _context->tryCreate();
@@ -147,6 +146,10 @@ GlfwApplication::~GlfwApplication() {
     glfwTerminate();
 }
 
+void GlfwApplication::setSwapInterval(const Int interval) {
+    glfwSwapInterval(interval);
+}
+
 int GlfwApplication::exec() {
     while(!glfwWindowShouldClose(_window)) {
         if(_needsRedraw) {
diff --git a/src/Magnum/Platform/GlfwApplication.h b/src/Magnum/Platform/GlfwApplication.h
index fff11ee14..3315a4185 100644
--- a/src/Magnum/Platform/GlfwApplication.h
+++ b/src/Magnum/Platform/GlfwApplication.h
@@ -173,6 +173,14 @@ class GlfwApplication {
          */
         void swapBuffers() { glfwSwapBuffers(_window); }
 
+        /**
+         * @brief Set swap interval
+         *
+         * Set `0` for no VSync, `1` for enabled VSync. Some platforms support
+         * `-1` for late swap tearing. Default is driver-dependent.
+         */
+        void setSwapInterval(Int interval);
+
         /** @copydoc Sdl2Application::redraw() */
         void redraw() { _needsRedraw = true; }