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Diffstat (limited to 'Source/DirectFB/lib/direct/fastlz.c')
-rwxr-xr-xSource/DirectFB/lib/direct/fastlz.c97
1 files changed, 97 insertions, 0 deletions
diff --git a/Source/DirectFB/lib/direct/fastlz.c b/Source/DirectFB/lib/direct/fastlz.c
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+++ b/Source/DirectFB/lib/direct/fastlz.c
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+/*
+ (c) Copyright 2001-2011 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.
+*/
+
+#include <config.h>
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <direct/fastlz.h>
+#include <direct/messages.h>
+
+#include "flz.h"
+
+
+int
+direct_fastlz_compress( const void *input,
+ int length,
+ void *output )
+{
+ return fastlz_compress_level( 2, input, length, output );
+}
+
+int
+direct_fastlz_decompress( const void *input,
+ int length,
+ void *output,
+ int maxout )
+{
+ return fastlz_decompress( input, length, output, maxout );
+}
+
+int
+direct_fastlz_compress_multi( const void **inputs,
+ int *lengths,
+ unsigned int num,
+ void *output )
+{
+ // FIXME: Optimize by modifying fastlz compressor to take an array of buffers directly
+
+ unsigned int i;
+ int total = 0;
+ int offset = 0;
+ void *buffer;
+ int result;
+
+ if (num == 0)
+ return 0;
+
+ if (num == 1)
+ return direct_fastlz_compress( inputs[0], lengths[0], output );
+
+ for (i=0; i<num; i++)
+ total += lengths[i];
+
+ buffer = malloc( total );
+ if (!buffer) {
+ D_OOM();
+ return 0;
+ }
+
+ for (i=0; i<num; i++) {
+ memcpy( (char*) buffer + offset, inputs[i], lengths[i] );
+
+ offset += lengths[i];
+ }
+
+ result = direct_fastlz_compress( buffer, total, output );
+
+ free( buffer );
+
+ return result;
+}