Engine directory for ticket #1

Engine/source/gfx/gl/gfxGLAppleFence.cpp

@@ -0,0 +1,71 @@
+//-----------------------------------------------------------------------------
+// Copyright (c) 2012 GarageGames, LLC
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//-----------------------------------------------------------------------------
+
+#include "gfx/gl/gfxGLAppleFence.h"
+
+GFXGLAppleFence::GFXGLAppleFence(GFXDevice* device) : GFXFence(device), mIssued(false)
+{
+   glGenFencesAPPLE(1, &mHandle);
+}
+
+GFXGLAppleFence::~GFXGLAppleFence()
+{
+   glDeleteFencesAPPLE(1, &mHandle);
+}
+
+void GFXGLAppleFence::issue()
+{
+   glSetFenceAPPLE(mHandle);
+   mIssued = true;
+}
+
+GFXFence::FenceStatus GFXGLAppleFence::getStatus() const
+{
+   if(!mIssued)
+      return GFXFence::Unset;
+      
+   GLboolean res = glTestFenceAPPLE(mHandle);
+   return res ? GFXFence::Processed : GFXFence::Pending;
+}
+
+void GFXGLAppleFence::block()
+{
+   if(!mIssued)
+      return;
+      
+   glFinishFenceAPPLE(mHandle);
+}
+
+void GFXGLAppleFence::zombify()
+{
+   glDeleteFencesAPPLE(1, &mHandle);
+}
+
+void GFXGLAppleFence::resurrect()
+{
+   glGenFencesAPPLE(1, &mHandle);
+}
+
+const String GFXGLAppleFence::describeSelf() const
+{
+   return String::ToString("   GL Handle: %i", mHandle);
+}