mirror of
https://gitlab.uni-freiburg.de/opensourcevdi/spice
synced 2025-12-26 14:41:25 +00:00
79 lines
2.0 KiB
C++
79 lines
2.0 KiB
C++
/*
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Copyright (C) 2010 Red Hat, Inc.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include "common.h"
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#include "zlib_decoder.h"
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#include "debug.h"
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#include "utils.h"
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static void op_decode(SpiceZlibDecoder *decoder,
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uint8_t *data,
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int data_size,
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uint8_t *dest,
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int dest_size)
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{
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ZlibDecoder* _decoder = static_cast<ZlibDecoder*>(decoder);
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_decoder->decode(data, data_size, dest, dest_size);
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}
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ZlibDecoder::ZlibDecoder()
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{
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int z_ret;
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_z_strm.zalloc = Z_NULL;
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_z_strm.zfree = Z_NULL;
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_z_strm.opaque = Z_NULL;
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_z_strm.next_in = Z_NULL;
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_z_strm.avail_in = 0;
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z_ret = inflateInit(&_z_strm);
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if (z_ret != Z_OK) {
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THROW("zlib decoder init failed, error %d", z_ret);
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}
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static SpiceZlibDecoderOps decoder_ops = {
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op_decode,
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};
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ops = &decoder_ops;
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}
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ZlibDecoder::~ZlibDecoder()
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{
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inflateEnd(&_z_strm);
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}
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void ZlibDecoder::decode(uint8_t *data, int data_size, uint8_t *dest, int dest_size)
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{
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int z_ret;
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inflateReset(&_z_strm);
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_z_strm.next_in = data;
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_z_strm.avail_in = data_size;
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_z_strm.next_out = dest;
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_z_strm.avail_out = dest_size;
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z_ret = inflate(&_z_strm, Z_FINISH);
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if (z_ret != Z_STREAM_END) {
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THROW("zlib inflate failed, error %d", z_ret);
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}
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}
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