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-rw-r--r--src/openglgraphics.cpp12
-rw-r--r--src/openglgraphics.h8
2 files changed, 19 insertions, 1 deletions
diff --git a/src/openglgraphics.cpp b/src/openglgraphics.cpp
index eeedcdf1..b3a8db4b 100644
--- a/src/openglgraphics.cpp
+++ b/src/openglgraphics.cpp
@@ -43,7 +43,8 @@
#endif
OpenGLGraphics::OpenGLGraphics():
- mAlpha(false), mTexture(false), mColorAlpha(false)
+ mAlpha(false), mTexture(false), mColorAlpha(false),
+ mSync(false)
{
}
@@ -51,6 +52,11 @@ OpenGLGraphics::~OpenGLGraphics()
{
}
+void OpenGLGraphics::setSync(bool sync)
+{
+ mSync = sync;
+}
+
bool OpenGLGraphics::setVideoMode(int w, int h, int bpp, bool fs, bool hwaccel)
{
logger->log("Setting video mode %dx%d %s",
@@ -74,6 +80,10 @@ bool OpenGLGraphics::setVideoMode(int w, int h, int bpp, bool fs, bool hwaccel)
#ifdef __APPLE__
// long VBL = 1;
// CGLSetParameter(CGLGetCurrentContext(), kCGLCPSwapInterval, &VBL);
+ if (mSync) {
+ const GLint VBL = 1;
+ CGLSetParameter(CGLGetCurrentContext(), kCGLCPSwapInterval, &VBL);
+ }
#endif
// Setup OpenGL
diff --git a/src/openglgraphics.h b/src/openglgraphics.h
index 7d39e306..ea30e019 100644
--- a/src/openglgraphics.h
+++ b/src/openglgraphics.h
@@ -31,6 +31,13 @@ class OpenGLGraphics : public Graphics
~OpenGLGraphics();
+ /**
+ * Sets whether vertical refresh syncing is enabled. Takes effect after
+ * the next call to setVideoMode(). Only implemented on MacOS for now.
+ */
+ void setSync(bool sync);
+ bool getSync() const { return mSync; }
+
bool setVideoMode(int w, int h, int bpp, bool fs, bool hwaccel);
bool drawImage(Image *image,
@@ -72,6 +79,7 @@ class OpenGLGraphics : public Graphics
private:
bool mAlpha, mTexture;
bool mColorAlpha;
+ bool mSync;
};
#endif