From 174c161daad0360a072860dab20eb415e49e9f0b Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Tue, 21 Oct 2014 14:47:43 +0000
Subject: [PATCH] Removed --sync related code as it's now integrated into
 osg::DisplaySettings and osgViewer

git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14457 16af8721-9629-0410-8352-f15c8da7e697
---
 applications/osgviewer/osgviewer.cpp | 111 ---------------------------
 1 file changed, 111 deletions(-)

diff --git a/applications/osgviewer/osgviewer.cpp b/applications/osgviewer/osgviewer.cpp
index 4ea476a9b..d63726a0d 100644
--- a/applications/osgviewer/osgviewer.cpp
+++ b/applications/osgviewer/osgviewer.cpp
@@ -33,103 +33,6 @@
 
 #include <iostream>
 
-#include <osg/GLExtensions>
-
-#ifndef GL_ARB_sync
-#define GL_MAX_SERVER_WAIT_TIMEOUT        0x9111
-#define GL_OBJECT_TYPE                    0x9112
-#define GL_SYNC_CONDITION                 0x9113
-#define GL_SYNC_STATUS                    0x9114
-#define GL_SYNC_FLAGS                     0x9115
-#define GL_SYNC_FENCE                     0x9116
-#define GL_SYNC_GPU_COMMANDS_COMPLETE     0x9117
-#define GL_UNSIGNALED                     0x9118
-#define GL_SIGNALED                       0x9119
-#define GL_ALREADY_SIGNALED               0x911A
-#define GL_TIMEOUT_EXPIRED                0x911B
-#define GL_CONDITION_SATISFIED            0x911C
-#define GL_WAIT_FAILED                    0x911D
-#define GL_SYNC_FLUSH_COMMANDS_BIT        0x00000001
-#define GL_TIMEOUT_IGNORED                0xFFFFFFFFFFFFFFFFull
-#endif
-
-class MySwapBuffersCallback : public osg::GraphicsContext::SwapCallback
-{
-public:
-    MySwapBuffersCallback():
-        _extensionInitialized(false),
-        _glFenceSync(0),
-        _glIsSync(0),
-        _glDeleteSync(0),
-        _glClientWaitSync(0),
-        _glWaitSync(0),
-        _glGetInteger64v(0),
-        _glGetSynciv(0),
-        _previousSync(0)
-    {
-         OSG_NOTICE<<"Created Swap callback."<<std::endl;
-    }
-
-    void setUpExtensions()
-    {
-        _extensionInitialized = true;
-        osg::setGLExtensionFuncPtr(_glFenceSync, "glFenceSync");
-        osg::setGLExtensionFuncPtr(_glIsSync, "glIsSync");
-        osg::setGLExtensionFuncPtr(_glDeleteSync, "glDeleteSync");
-        osg::setGLExtensionFuncPtr(_glClientWaitSync, "glClientWaitSync");
-        osg::setGLExtensionFuncPtr(_glWaitSync, "glWaitSync");
-        osg::setGLExtensionFuncPtr(_glGetInteger64v, "glGetInteger64v");
-        osg::setGLExtensionFuncPtr(_glGetSynciv, "glGetSynciv");
-    }
-
-    virtual void swapBuffersImplementation(osg::GraphicsContext* gc)
-    {
-        // OSG_NOTICE<<"Before swap - place to do swap ready sync"<<std::endl;
-        gc->swapBuffersImplementation();
-        //glFinish();
-
-        if (!_extensionInitialized) setUpExtensions();
-
-        if (_glClientWaitSync)
-        {
-            if (_previousSync)
-            {
-                unsigned int num_seconds = 1;
-                GLuint64 timeout = num_seconds * ((GLuint64)1000 * 1000 * 1000);
-                _glClientWaitSync(_previousSync, 0, timeout);
-
-                _glDeleteSync(_previousSync);
-            }
-
-            _previousSync = _glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
-        }
-        //gc->getState()->checkGLErrors("after glWaitSync");
-
-        //OSG_NOTICE<<"After swap"<<std::endl;
-    }
-
-    typedef struct __GLsync *GLsync;
-
-    typedef GLsync (GL_APIENTRY * PFNGLFENCESYNCPROC) (GLenum condition, GLbitfield flags);
-    typedef GLboolean (GL_APIENTRY * PFNGLISSYNCPROC) (GLsync sync);
-    typedef void (GL_APIENTRY * PFNGLDELETESYNCPROC) (GLsync sync);
-    typedef GLenum (GL_APIENTRY * PFNGLCLIENTWAITSYNCPROC) (GLsync sync, GLbitfield flags, GLuint64 timeout);
-    typedef void (GL_APIENTRY * PFNGLWAITSYNCPROC) (GLsync sync, GLbitfield flags, GLuint64 timeout);
-    typedef void (GL_APIENTRY * PFNGLGETINTEGER64VPROC) (GLenum pname, GLint64 *params);
-    typedef void (GL_APIENTRY * PFNGLGETSYNCIVPROC) (GLsync sync, GLenum pname, GLsizei bufSize, GLsizei *length, GLint *values);
-
-    bool                        _extensionInitialized;
-
-    PFNGLFENCESYNCPROC          _glFenceSync;
-    PFNGLISSYNCPROC             _glIsSync;
-    PFNGLDELETESYNCPROC         _glDeleteSync;
-    PFNGLCLIENTWAITSYNCPROC     _glClientWaitSync;
-    PFNGLWAITSYNCPROC           _glWaitSync;
-    PFNGLGETINTEGER64VPROC      _glGetInteger64v;
-    PFNGLGETSYNCIVPROC          _glGetSynciv;
-
-    GLsync _previousSync;
-};
 
 int main(int argc, char** argv)
 {
@@ -224,8 +127,6 @@ int main(int argc, char** argv)
         viewer.setCameraManipulator( keyswitchManipulator.get() );
     }
 
-    bool doArbSync = arguments.read("--sync");
-
     // add the state manipulator
     viewer.addEventHandler( new osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet()) );
 
@@ -277,18 +178,6 @@ int main(int argc, char** argv)
 
     viewer.realize();
 
-    if (doArbSync)
-    {
-        osgViewer::ViewerBase::Contexts contexts;
-        viewer.getContexts(contexts);
-        for(osgViewer::ViewerBase::Contexts::iterator itr = contexts.begin();
-            itr != contexts.end();
-            ++itr)
-        {
-            (*itr)->setSwapCallback(new MySwapBuffersCallback);
-        }
-    }
-
     return viewer.run();
 
 }