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+/*
+ (c) Copyright 2001-2009 The world wide DirectFB Open Source Community (directfb.org)
+ (c) Copyright 2000-2004 Convergence (integrated media) GmbH
+
+ All rights reserved.
+
+ Written by Denis Oliver Kropp <dok@directfb.org>,
+ Andreas Hundt <andi@fischlustig.de>,
+ Sven Neumann <neo@directfb.org>,
+ Ville Syrjälä <syrjala@sci.fi> and
+ Claudio Ciccani <klan@users.sf.net>.
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the
+ Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+*/
+
+#ifndef __IDIRECTFBDATABUFFER_H__
+#define __IDIRECTFBDATABUFFER_H__
+
+#include <core/core.h>
+
+/*
+ * private data struct of IDirectFBDataBuffer
+ */
+typedef struct {
+ int ref; /* reference counter */
+ char *filename; /* Only set if databuffer is created from file. */
+
+ CoreDFB *core;
+
+ bool is_memory;
+} IDirectFBDataBuffer_data;
+
+/*
+ * private data struct of IDirectFBDataBuffer_File
+ */
+typedef struct {
+ IDirectFBDataBuffer_data base;
+
+ DirectStream *stream;
+ pthread_mutex_t mutex;
+} IDirectFBDataBuffer_File_data;
+
+/*
+ * private data struct of IDirectFBDataBuffer_Memory
+ */
+typedef struct {
+ IDirectFBDataBuffer_data base;
+
+ const void *buffer;
+ unsigned int length;
+
+ unsigned int pos;
+} IDirectFBDataBuffer_Memory_data;
+
+/*
+ * base constructor
+ *
+ * If the databuffer is created for a file, the filename can be provided
+ * for fallbacks.
+ */
+DFBResult IDirectFBDataBuffer_Construct( IDirectFBDataBuffer *thiz,
+ const char *filename,
+ CoreDFB *core );
+
+/*
+ * base destructor
+ */
+void IDirectFBDataBuffer_Destruct( IDirectFBDataBuffer *thiz );
+
+/*
+ * generic streamed data buffer
+ */
+DFBResult IDirectFBDataBuffer_Streamed_Construct( IDirectFBDataBuffer *thiz,
+ CoreDFB *core );
+
+/*
+ * file based static data buffer
+ */
+DFBResult IDirectFBDataBuffer_File_Construct( IDirectFBDataBuffer *thiz,
+ const char *filename,
+ CoreDFB *core );
+
+/*
+ * memory based static data buffer
+ */
+DFBResult IDirectFBDataBuffer_Memory_Construct( IDirectFBDataBuffer *thiz,
+ const void *data,
+ unsigned int length,
+ CoreDFB *core );
+
+#endif