diff options
Diffstat (limited to 'src/classes/com/sun/opengl/impl/GLContextShareSet.java')
| -rw-r--r-- | src/classes/com/sun/opengl/impl/GLContextShareSet.java | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/classes/com/sun/opengl/impl/GLContextShareSet.java b/src/classes/com/sun/opengl/impl/GLContextShareSet.java index f2c015762..e02ef1fb5 100644 --- a/src/classes/com/sun/opengl/impl/GLContextShareSet.java +++ b/src/classes/com/sun/opengl/impl/GLContextShareSet.java @@ -240,6 +240,31 @@ public class GLContextShareSet { } } + /** In order to avoid glGet calls for buffer object checks related + to glVertexPointer, etc. calls as well as glMapBuffer calls, we + need to share the same GLBufferSizeTracker object between + contexts sharing textures and display lists. For now we keep + this mechanism orthogonal to the GLObjectTracker to hopefully + keep things easier to understand. (The GLObjectTracker is + currently only needed in a fairly esoteric case, when the + Java2D/JOGL bridge is active, but the GLBufferSizeTracker + mechanism is now always required.) */ + public static void registerForBufferObjectSharing(GLContext olderContextOrNull, GLContext newContext) { + // FIXME: downcasts to GLContextImpl undesirable + GLContextImpl older = (GLContextImpl) olderContextOrNull; + GLContextImpl newer = (GLContextImpl) newContext; + GLBufferSizeTracker tracker = null; + if (older != null) { + tracker = older.getBufferSizeTracker(); + assert (tracker != null) + : "registerForBufferObjectSharing was not called properly for the older context, or has a bug in it"; + } + if (tracker == null) { + tracker = new GLBufferSizeTracker(); + } + newer.setBufferSizeTracker(tracker); + } + //---------------------------------------------------------------------- // Internals only below this point // |