Changed glMapBufferARB's implementation to return the same ByteBuffer

if the address and capacity of the underlying buffer object haven't
changed. This saves applications the cost of re-slicing the returned
buffer each frame and avoids allocation of one or more finalizable
objects per frame. Moved GlueGen's checking of whether a passed buffer
is direct up into Java from C to be able to handle buffers that wrap
the NULL pointer (needed for the "buffer offsets" used by
ARB_vertex_buffer_object). Ported the VertexArrayRange demo to
VertexBufferObject. Currently slower than VertexArrayRange but needs
to be updated to triangulate the geometry more efficiently (currently
the triangle strips are only 48 vertices long) and to move the indices
into fast RAM.


git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/trunk@47 232f8b59-042b-4e1e-8c03-345bb8c30851

1 files changed, 54 insertions, 0 deletions

diff --git a/src/native/jogl/InternalBufferUtils.c b/src/native/jogl/InternalBufferUtils.c
new file mode 100644
index 000000000..395396ac8
--- /dev/null
+++ b/src/native/jogl/InternalBufferUtils.c
@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 
+ * - Redistribution of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ * - Redistribution in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * 
+ * Neither the name of Sun Microsystems, Inc. or the names of
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ * 
+ * This software is provided "AS IS," without a warranty of any kind. ALL
+ * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
+ * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
+ * MIDROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
+ * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
+ * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
+ * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
+ * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
+ * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
+ * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
+ * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ * 
+ * You acknowledge that this software is not designed or intended for use
+ * in the design, construction, operation or maintenance of any nuclear
+ * facility.
+ * 
+ * Sun gratefully acknowledges that this software was originally authored
+ * and developed by Kenneth Bradley Russell and Christopher John Kline.
+ */
+
+#include <jni.h>
+
+#ifdef _MSC_VER
+ /* This typedef is only needed for VC6 */
+ #if _MSC_VER <= 1200
+ typedef int intptr_t;
+ #endif
+#else
+ #include <inttypes.h>
+#endif
+
+JNIEXPORT jobject JNICALL
+Java_net_java_games_jogl_impl_InternalBufferUtils_newDirectByteBuffer(JNIEnv* env, jclass unused, jlong address, jint capacity) {
+  return (*env)->NewDirectByteBuffer(env, (void*) (intptr_t) address, capacity);
+}