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/*
Copyright (C) 2009 Red Hat, Inc.
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 2.1 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef _H_GLZ_ENCODER_CONFIG
#define _H_GLZ_ENCODER_CONFIG
#include <spice/macros.h>
#include "common/lz_common.h"
typedef void GlzUsrImageContext;
typedef struct GlzEncoderUsrContext GlzEncoderUsrContext;
struct GlzEncoderUsrContext {
SPICE_GNUC_PRINTF(2, 3) void (*error)(GlzEncoderUsrContext *usr, const char *fmt, ...);
SPICE_GNUC_PRINTF(2, 3) void (*warn)(GlzEncoderUsrContext *usr, const char *fmt, ...);
SPICE_GNUC_PRINTF(2, 3) void (*info)(GlzEncoderUsrContext *usr, const char *fmt, ...);
void *(*malloc)(GlzEncoderUsrContext *usr, int size);
void (*free)(GlzEncoderUsrContext *usr, void *ptr);
// get the next chunk of the image which is entered to the dictionary. If the image is down to
// top, return it from the last line to the first one (stride should always be positive)
int (*more_lines)(GlzEncoderUsrContext *usr, uint8_t **lines);
// get the next chunk of the compressed buffer.return number of bytes in the chunk.
int (*more_space)(GlzEncoderUsrContext *usr, uint8_t **io_ptr);
// called when an image is removed from the dictionary, due to the window size limit
void (*free_image)(GlzEncoderUsrContext *usr, GlzUsrImageContext *image);
};
#ifdef DEBUG
#define GLZ_ASSERT(usr, x) \
if (!(x)) (usr)->error(usr, "%s: ASSERT %s failed\n", __FUNCTION__, #x);
#else
#define GLZ_ASSERT(usr, x)
#endif
#define INLINE inline
#endif
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