Added GLBufferObject::computeBufferAlignment(..) method to enable buffer entries to be aligned along specified buffer alignment boundaries, currently defaulting to 4.

2011-06-14 10:15:12 +00:00
parent 529ea4c94f
commit 6a6c5bccda
2 changed files with 14 additions and 3 deletions
--- a/include/osg/BufferObject
+++ b/include/osg/BufferObject
@@ -334,6 +334,13 @@ class OSG_EXPORT GLBufferObject : public Referenced

        virtual ~GLBufferObject();

+        unsigned int computeBufferAlignment(unsigned int pos, unsigned int bufferAlignment) const
+        {
+            if (bufferAlignment<2) return pos;
+            if ((pos%bufferAlignment)==0) return pos;
+            return ((pos/bufferAlignment)+1)*bufferAlignment;
+        }
+
        unsigned int            _contextID;
        GLuint                  _glObjectID;