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https://gitlab.uni-freiburg.de/opensourcevdi/spice
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63 lines
2.0 KiB
C
63 lines
2.0 KiB
C
/*
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Copyright (C) 2009 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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#ifndef _H_GLZ_ENCODER_CONFIG
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#define _H_GLZ_ENCODER_CONFIG
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#include <spice/macros.h>
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#include "lz_common.h"
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typedef void GlzUsrImageContext;
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typedef struct GlzEncoderUsrContext GlzEncoderUsrContext;
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struct GlzEncoderUsrContext {
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void (*error)(GlzEncoderUsrContext *usr, const char *fmt, ...);
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void (*warn)(GlzEncoderUsrContext *usr, const char *fmt, ...);
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void (*info)(GlzEncoderUsrContext *usr, const char *fmt, ...);
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void *(*malloc)(GlzEncoderUsrContext *usr, int size);
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void (*free)(GlzEncoderUsrContext *usr, void *ptr);
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// get the next chunk of the image which is entered to the dictionary. If the image is down to
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// top, return it from the last line to the first one (stride should always be positive)
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int (*more_lines)(GlzEncoderUsrContext *usr, uint8_t **lines);
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// get the next chunk of the compressed buffer.return number of bytes in the chunk.
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int (*more_space)(GlzEncoderUsrContext *usr, uint8_t **io_ptr);
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// called when an image is removed from the dictionary, due to the window size limit
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void (*free_image)(GlzEncoderUsrContext *usr, GlzUsrImageContext *image);
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};
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#ifdef DEBUG
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#define GLZ_ASSERT(usr, x) \
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if (!(x)) (usr)->error(usr, "%s: ASSERT %s failed\n", __FUNCTION__, #x);
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#else
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#define GLZ_ASSERT(usr, x)
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#endif
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#define INLINE inline
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#endif
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