Add vsync option.

4 files changed, 27 insertions, 0 deletions

diff --git a/src/client.cpp b/src/client.cpp
index b853f1908..242bb2f21 100644
--- a/src/client.cpp
+++ b/src/client.cpp
@@ -564,6 +564,7 @@ void Client::gameInit()
 
     applyGrabMode();
     applyGamma();
+    applyVSync();
 
     // Initialize for drawing
     mainGraphics->_beginDraw();
@@ -668,6 +669,7 @@ void Client::gameInit()
     config.addListener("guialpha", this);
     config.addListener("gamma", this);
     config.addListener("particleEmitterSkip", this);
+    config.addListener("vsync", this);
     setGuiAlpha(config.getFloatValue("guialpha"));
 
     optionChanged("fpslimit");
@@ -709,6 +711,7 @@ void Client::gameClear()
     config.removeListener("guialpha", this);
     config.removeListener("gamma", this);
     config.removeListener("particleEmitterSkip", this);
+    config.removeListener("vsync", this);
 
     SDL_RemoveTimer(mLogicCounterId);
     SDL_RemoveTimer(mSecondsCounterId);
@@ -1507,6 +1510,10 @@ void Client::optionChanged(const std::string &name)
     {
         Particle::emitterSkip = config.getIntValue("particleEmitterSkip") + 1;
     }
+    else if (name == "vsync")
+    {
+        applyVSync();
+    }
 }
 
 void Client::action(const gcn::ActionEvent &event)
@@ -2457,3 +2464,10 @@ void Client::applyGamma()
     float val = config.getFloatValue("gamma");
     SDL_SetGamma(val, val, val);
 }
+
+void Client::applyVSync()
+{
+    int val = config.getIntValue("vsync");
+    if (val > 0 && val < 2)
+        SDL_GL_SetAttribute(SDL_GL_SWAP_CONTROL, val);
+}
diff --git a/src/client.h b/src/client.h
index 922b24caf..54de27824 100644
--- a/src/client.h
+++ b/src/client.h
@@ -277,6 +277,8 @@ public:
 
     void applyGamma();
 
+    void applyVSync();
+
     void optionChanged(const std::string &name);
 
     void action(const gcn::ActionEvent &event);
diff --git a/src/gui/setup_visual.cpp b/src/gui/setup_visual.cpp
index 22df1ffa7..454a2c3f6 100644
--- a/src/gui/setup_visual.cpp
+++ b/src/gui/setup_visual.cpp
@@ -94,6 +94,13 @@ Setup_Visual::Setup_Visual()
     new SetupItemSlider(_("Gamma"), "", "gamma",
         this, "gammeEvent", 1, 20, 350, true);
 
+    mVSyncList = new SetupItemNames();
+    mVSyncList->push_back(_("default"));
+    mVSyncList->push_back(_("off"));
+    mVSyncList->push_back(_("on"));
+    new SetupItemSlider2(_("Vsync"), "", "vsync", this,
+        "vsyncEvent", 0, 2, mVSyncList);
+
     setDimension(gcn::Rectangle(0, 0, 550, 350));
 }
 
@@ -105,6 +112,8 @@ Setup_Visual::~Setup_Visual()
     mAmbientFxList = nullptr;
     delete mParticleList;
     mParticleList = nullptr;
+    delete mVSyncList;
+    mVSyncList = nullptr;
 }
 
 void Setup_Visual::apply()
diff --git a/src/gui/setup_visual.h b/src/gui/setup_visual.h
index 30ae18645..3c4c8a6d2 100644
--- a/src/gui/setup_visual.h
+++ b/src/gui/setup_visual.h
@@ -45,6 +45,8 @@ class Setup_Visual : public SetupTabScroll
         SetupItemNames *mAmbientFxList;
 
         SetupItemNames *mParticleList;
+
+        SetupItemNames *mVSyncList;
 };
 
 #endif