Add Android-specific sal/ByteBufferWrapper.hxx header

Used for impedance matching between Java's direct ByteBuffer and the
boost::shared_array used by basebmp. Not sure yet how well this will
actually work. I'm afraid leaks might be possible in exception
throwing cases.

Change-Id: I74fc57aaf46b2dd9f227043bd9045d4815a5ed40

1 files changed, 51 insertions, 0 deletions

diff --git a/sal/inc/sal/ByteBufferWrapper.hxx b/sal/inc/sal/ByteBufferWrapper.hxx
new file mode 100644
index 000000000000..954922d65b16
--- /dev/null
+++ b/sal/inc/sal/ByteBufferWrapper.hxx
@@ -0,0 +1,51 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * Copyright 2012 LibreOffice contributors.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef _SAL_BYTEBUFFERWRAPPER_HXX
+#define _SAL_BYTEBUFFERWRAPPER_HXX
+
+#ifdef ANDROID
+
+#include <jni.h>
+
+#include <sal/types.h>
+
+namespace org { namespace libreoffice { namespace touch {
+
+class ByteBufferWrapper
+{
+private:
+  JNIEnv *env;
+  jobject object;
+
+public:
+  ByteBufferWrapper(JNIEnv *e, jobject o) :
+    env(e)
+  {
+    object = env->NewGlobalRef(o);
+  }
+
+  sal_uInt8* pointer()
+  {
+    return (sal_uInt8 *) env->GetDirectBufferAddress(object);
+  }
+
+  void operator()(sal_uInt8 * /* p */)
+  {
+    env->DeleteGlobalRef(object);
+  }
+};
+
+}; }; };
+
+#endif
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */