diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/native/jogl/BufferUtils.c | 2 | ||||
| -rw-r--r-- | src/net/java/games/jogl/util/BufferUtils.java | 15 |
2 files changed, 15 insertions, 2 deletions
diff --git a/src/native/jogl/BufferUtils.c b/src/native/jogl/BufferUtils.c index f10a8ce6d..d5ea5b36e 100644 --- a/src/native/jogl/BufferUtils.c +++ b/src/native/jogl/BufferUtils.c @@ -49,6 +49,6 @@ #endif JNIEXPORT jobject JNICALL -Java_net_java_games_jogl_util_BufferUtils_bufferOffset(JNIEnv* env, jclass unused, jint offset) { +Java_net_java_games_jogl_util_BufferUtils_bufferOffset0(JNIEnv* env, jclass unused, jint offset) { return (*env)->NewDirectByteBuffer(env, (void*) (intptr_t) offset, 0); } diff --git a/src/net/java/games/jogl/util/BufferUtils.java b/src/net/java/games/jogl/util/BufferUtils.java index 05125b75e..88afa1c8f 100644 --- a/src/net/java/games/jogl/util/BufferUtils.java +++ b/src/net/java/games/jogl/util/BufferUtils.java @@ -40,6 +40,7 @@ package net.java.games.jogl.util; import java.nio.*; +import java.util.*; /** Utility routines for dealing with direct buffers. */ @@ -70,6 +71,8 @@ public class BufferUtils { return dest; } + private static Map bufferOffsetCache = Collections.synchronizedMap(new HashMap()); + /** Creates an "offset buffer" for use with the ARB_vertex_buffer_object extension. The resulting Buffers are suitable for use with routines such as glVertexPointer <em>when @@ -77,5 +80,15 @@ public class BufferUtils { capacity and are not suitable for passing to OpenGL routines that do not support buffer offsets, or to non-OpenGL routines. */ - public static native ByteBuffer bufferOffset(int offset); + public static ByteBuffer bufferOffset(int offset) { + Integer key = new Integer(offset); + ByteBuffer buf = (ByteBuffer) bufferOffsetCache.get(key); + if (buf == null) { + buf = bufferOffset0(offset); + bufferOffsetCache.put(key, buf); + } + return buf; + } + + private static native ByteBuffer bufferOffset0(int offset); } |