/src/dcmtk/oficonv/libsrc/citrus_mapper_zone.c

Source
/*-
 * Copyright (c)2003 Citrus Project,
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include "dcmtk/config/osconfig.h"
#include "citrus_mapper_zone.h"

#ifdef HAVE_SYS_QUEUE_H
#include <sys/queue.h>
#else
#include "dcmtk/oficonv/queue.h"
#endif

#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "citrus_bcs.h"
#include "citrus_types.h"
#include "citrus_module.h"
#include "citrus_region.h"
#include "citrus_memstream.h"
#include "citrus_mmap.h"
#include "citrus_hash.h"
#include "citrus_mapper.h"

/* ---------------------------------------------------------------------- */

_CITRUS_MAPPER_DECLS(mapper_zone);
_CITRUS_MAPPER_DEF_OPS(mapper_zone);


/* ---------------------------------------------------------------------- */

struct _zone {
    uint32_t     z_begin;
    uint32_t     z_end;
};

struct _citrus_mapper_zone {
    struct _zone     mz_col;
    struct _zone     mz_row;
    int32_t      mz_col_offset;
    int32_t      mz_row_offset;
    int      mz_col_bits;
};

struct _parse_state {
    enum { S_BEGIN, S_OFFSET }  ps_state;
    union {
        uint32_t    u_imm;
        int32_t     s_imm;
        struct _zone    zone;
    } u;
#define ps_u_imm    u.u_imm
#define ps_s_imm    u.s_imm
#define ps_zone     u.zone
    int ps_top;
};

int
_citrus_mapper_zone_mapper_getops(struct _citrus_mapper_ops *ops)
{

    memcpy(ops, &_citrus_mapper_zone_mapper_ops,
           sizeof(_citrus_mapper_zone_mapper_ops));

    return (0);
}

#define BUFSIZE 20
#define T_ERR   0x100
#define T_IMM   0x101

static int
get_imm(struct _citrus_memory_stream *ms, struct _parse_state *ps)
{
    int c, i, sign = 0;
    char buf[BUFSIZE + 1];
    char *p;

    for (i = 0; i < BUFSIZE; i++) {
retry:
        c = _citrus_memory_stream_peek(ms);
        if (i == 0) {
            if (sign == 0 && (c == '+' || c == '-')) {
                sign = c;
                _citrus_memory_stream_getc(ms);
                goto retry;
            } else if (!_citrus_bcs_isdigit((uint8_t)c))
                break;
        } else if (!_citrus_bcs_isxdigit((uint8_t)c))
            if (!(i == 1 && c == 'x'))
                break;
        buf[i] = (char) _citrus_memory_stream_getc(ms);
    }
    buf[i] = '\0';
    ps->ps_u_imm = strtoul(buf, &p, 0);
    if ((p - buf) != i)
        return (T_ERR);
    if (sign == '-')
        ps->ps_u_imm = (unsigned long)-(long)ps->ps_u_imm;
    return (T_IMM);
}

static int
get_tok(struct _citrus_memory_stream *ms, struct _parse_state *ps)
{
    int c;

loop:
    c = _citrus_memory_stream_peek(ms);
    if (c == 0x00)
        return (EOF);
    if (_citrus_bcs_isspace((uint8_t)c)) {
        _citrus_memory_stream_getc(ms);
        goto loop;
    }

    switch (ps->ps_state) {
    case S_BEGIN:
        switch (c) {
        case ':':
        case '-':
        case '/':
            _citrus_memory_stream_getc(ms);
            return (c);
        case '0':
        case '1':
        case '2':
        case '3':
        case '4':
        case '5':
        case '6':
        case '7':
        case '8':
        case '9':
            return (get_imm(ms, ps));
        }
        break;
    case S_OFFSET:
        switch (c) {
        case '/':
            _citrus_memory_stream_getc(ms);
            return (c);
        case '+':
        case '-':
        case '0':
        case '1':
        case '2':
        case '3':
        case '4':
        case '5':
        case '6':
        case '7':
        case '8':
        case '9':
            return (get_imm(ms, ps));
        }
        break;
    }
    return (T_ERR);
}

static int
parse_zone(struct _citrus_memory_stream *ms, struct _parse_state *ps, struct _zone *z)
{

    if (get_tok(ms, ps) != T_IMM)
        return (-1);
    z->z_begin = ps->ps_u_imm;
    if (get_tok(ms, ps) != '-')
        return (-1);
    if (get_tok(ms, ps) != T_IMM)
        return (-1);
    z->z_end = ps->ps_u_imm;

    if (z->z_begin > z->z_end)
        return (-1);

    return (0);
}

static int
check_rowcol(struct _zone *z, int32_t ofs, uint32_t maxval)
{
    uint32_t remain;

    if (maxval != 0 && z->z_end >= maxval)
        return (-1);

    if (ofs > 0) {
        if (maxval == 0)
            /* this should 0x100000000 - z->z_end */
            remain = (z->z_end == 0) ? 0xFFFFFFFF :
                0xFFFFFFFF - z->z_end + 1;
        else
            remain = maxval - z->z_end;
        if ((uint32_t)ofs > remain)
            return (-1);
    } else if (ofs < 0) {
        if (z->z_begin < (uint32_t)-ofs)
            return (-1);
    }

    return (0);
}

static int
parse_var(struct _citrus_mapper_zone *mz, struct _citrus_memory_stream *ms)
{
    struct _parse_state ps;
    uint32_t colmax, rowmax;
    int isrc, ret;

    ps.ps_state = S_BEGIN;

    if (parse_zone(ms, &ps, &mz->mz_col))
        return (-1);

    ret = get_tok(ms, &ps);
    if (ret == '/') {
        /* rowzone / colzone / bits */
        isrc = 1;
        mz->mz_row = mz->mz_col;

        if (parse_zone(ms, &ps, &mz->mz_col))
            return (-1);
        if (get_tok(ms, &ps) != '/')
            return (-1);
        if (get_tok(ms, &ps) != T_IMM)
            return (-1);
        mz->mz_col_bits = ps.ps_u_imm;
        if (mz->mz_col_bits < 0 || mz->mz_col_bits > 32)
            return (-1);
        ret = get_tok(ms, &ps);
    } else {
        /* colzone */
        isrc = 0;
        mz->mz_col_bits = 32;
        mz->mz_row.z_begin = mz->mz_row.z_end = 0;
    }
    if (ret == ':') {
        /* offset */
        ps.ps_state = S_OFFSET;
        if (get_tok(ms, &ps) != T_IMM)
            return (-1);
        mz->mz_col_offset = ps.ps_s_imm;
        if (isrc) {
            /* row/col */
            mz->mz_row_offset = mz->mz_col_offset;
            if (get_tok(ms, &ps) != '/')
                return (-1);
            if (get_tok(ms, &ps) != T_IMM)
                return (-1);
            mz->mz_col_offset = ps.ps_s_imm;
        } else
            mz->mz_row_offset = 0;
        ret = get_tok(ms, &ps);
    }
    if (ret != EOF)
        return (-1);

    /* sanity check */
    colmax = (mz->mz_col_bits == 32) ? 0 : 1 << mz->mz_col_bits;
    rowmax = (mz->mz_col_bits == 0) ? 0 : 1 << (32-mz->mz_col_bits);
    if (check_rowcol(&mz->mz_col, mz->mz_col_offset, colmax))
        return (-1);
    if (check_rowcol(&mz->mz_row, mz->mz_row_offset, rowmax))
        return (-1);

    return (0);
}

static int
/*ARGSUSED*/
_citrus_mapper_zone_mapper_init(struct _citrus_mapper_area * ma ,
    struct _citrus_csmapper * cm, const char * dir ,
    const void * var, size_t lenvar,
    struct _citrus_mapper_traits * mt, size_t lenmt)
{
    struct _citrus_mapper_zone *mz;
    struct _citrus_memory_stream ms;
    struct _citrus_region r;
    (void) ma;
    (void) dir;

    if (lenmt < sizeof(*mt))
        return (EINVAL);

    mz = malloc(sizeof(*mz));
    if (mz == NULL)
        return (errno);

    mz->mz_col.z_begin = mz->mz_col.z_end = 0;
    mz->mz_row.z_begin = mz->mz_row.z_end = 0;
    mz->mz_col_bits = 0;
    mz->mz_row_offset = 0;
    mz->mz_col_offset = 0;

    _citrus_region_init(&r, CITRUS_DECONST(void *, var), lenvar);
    _citrus_memory_stream_bind(&ms, &r);
    if (parse_var(mz, &ms)) {
        free(mz);
        return (EINVAL);
    }
    cm->cm_closure = mz;
    mt->mt_src_max = mt->mt_dst_max = 1;    /* 1:1 converter */
    mt->mt_state_size = 0;          /* stateless */

    return (0);
}

static void
/*ARGSUSED*/
_citrus_mapper_zone_mapper_uninit(struct _citrus_csmapper *cm )
{
    if (cm && cm->cm_closure)
        free(cm->cm_closure);
}

static int
/*ARGSUSED*/
_citrus_mapper_zone_mapper_convert(struct _citrus_csmapper * cm,
    _citrus_index_t * dst, _citrus_index_t src,
    void * ps )
{
    struct _citrus_mapper_zone *mz = cm->cm_closure;
    uint32_t col, row;
    (void) ps;

    if (mz->mz_col_bits == 32) {
        col = src;
        row = 0;
        if (col < mz->mz_col.z_begin || col > mz->mz_col.z_end)
            return (_CITRUS_MAPPER_CONVERT_NONIDENTICAL);
        if (mz->mz_col_offset > 0)
            col += (uint32_t)mz->mz_col_offset;
        else
            col -= (uint32_t)-mz->mz_col_offset;
        *dst = col;
    } else {
        col = src & (((uint32_t)1 << mz->mz_col_bits) - 1);
        row = src >> mz->mz_col_bits;
        if (row < mz->mz_row.z_begin || row > mz->mz_row.z_end ||
            col < mz->mz_col.z_begin || col > mz->mz_col.z_end)
            return (_CITRUS_MAPPER_CONVERT_NONIDENTICAL);
        if (mz->mz_col_offset > 0)
            col += (uint32_t)mz->mz_col_offset;
        else
            col -= (uint32_t)-mz->mz_col_offset;
        if (mz->mz_row_offset > 0)
            row += (uint32_t)mz->mz_row_offset;
        else
            row -= (uint32_t)-mz->mz_row_offset;
        *dst = col | (row << mz->mz_col_bits);
    }
    return (_CITRUS_MAPPER_CONVERT_SUCCESS);
}

static void
/*ARGSUSED*/
_citrus_mapper_zone_mapper_init_state(void)
{

}

Coverage Report

Created: 2026-09-28 07:04

Line	Count	Source
1		/*-
2		* Copyright (c)2003 Citrus Project,
3		* All rights reserved.
4		*
5		* Redistribution and use in source and binary forms, with or without
6		* modification, are permitted provided that the following conditions
7		* are met:
8		* 1. Redistributions of source code must retain the above copyright
9		* notice, this list of conditions and the following disclaimer.
10		* 2. Redistributions in binary form must reproduce the above copyright
11		* notice, this list of conditions and the following disclaimer in the
12		* documentation and/or other materials provided with the distribution.
13		*
14		* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15		* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16		* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17		* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18		* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19		* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20		* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21		* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22		* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23		* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24		* SUCH DAMAGE.
25		*/
26
27		#include "dcmtk/config/osconfig.h"
28		#include "citrus_mapper_zone.h"
29
30		#ifdef HAVE_SYS_QUEUE_H
31		#include <sys/queue.h>
32		#else
33		#include "dcmtk/oficonv/queue.h"
34		#endif
35
36		#include <errno.h>
37		#include <stdio.h>
38		#include <stdlib.h>
39		#include <string.h>
40
41		#include "citrus_bcs.h"
42		#include "citrus_types.h"
43		#include "citrus_module.h"
44		#include "citrus_region.h"
45		#include "citrus_memstream.h"
46		#include "citrus_mmap.h"
47		#include "citrus_hash.h"
48		#include "citrus_mapper.h"
49
50		/* ---------------------------------------------------------------------- */
51
52		_CITRUS_MAPPER_DECLS(mapper_zone);
53		_CITRUS_MAPPER_DEF_OPS(mapper_zone);
54
55
56		/* ---------------------------------------------------------------------- */
57
58		struct _zone {
59		uint32_t z_begin;
60		uint32_t z_end;
61		};
62
63		struct _citrus_mapper_zone {
64		struct _zone mz_col;
65		struct _zone mz_row;
66		int32_t mz_col_offset;
67		int32_t mz_row_offset;
68		int mz_col_bits;
69		};
70
71		struct _parse_state {
72		enum { S_BEGIN, S_OFFSET } ps_state;
73		union {
74		uint32_t u_imm;
75		int32_t s_imm;
76		struct _zone zone;
77		} u;
78	0	#define ps_u_imm u.u_imm
79	0	#define ps_s_imm u.s_imm
80		#define ps_zone u.zone
81		int ps_top;
82		};
83
84		int
85		_citrus_mapper_zone_mapper_getops(struct _citrus_mapper_ops *ops)
86	0	{
87
88	0	memcpy(ops, &_citrus_mapper_zone_mapper_ops,
89	0	sizeof(_citrus_mapper_zone_mapper_ops));
90
91	0	return (0);
92	0	}
93
94	0	#define BUFSIZE 20
95	0	#define T_ERR 0x100
96	0	#define T_IMM 0x101
97
98		static int
99		get_imm(struct _citrus_memory_stream ms, struct _parse_state ps)
100	0	{
101	0	int c, i, sign = 0;
102	0	char buf[BUFSIZE + 1];
103	0	char *p;
104
105	0	for (i = 0; i < BUFSIZE; i++) {
106	0	retry:
107	0	c = _citrus_memory_stream_peek(ms);
108	0	if (i == 0) {
109	0	if (sign == 0 && (c == '+' \|\| c == '-')) {
110	0	sign = c;
111	0	_citrus_memory_stream_getc(ms);
112	0	goto retry;
113	0	} else if (!_citrus_bcs_isdigit((uint8_t)c))
114	0	break;
115	0	} else if (!_citrus_bcs_isxdigit((uint8_t)c))
116	0	if (!(i == 1 && c == 'x'))
117	0	break;
118	0	buf[i] = (char) _citrus_memory_stream_getc(ms);
119	0	}
120	0	buf[i] = '\0';
121	0	ps->ps_u_imm = strtoul(buf, &p, 0);
122	0	if ((p - buf) != i)
123	0	return (T_ERR);
124	0	if (sign == '-')
125	0	ps->ps_u_imm = (unsigned long)-(long)ps->ps_u_imm;
126	0	return (T_IMM);
127	0	}
128
129		static int
130		get_tok(struct _citrus_memory_stream ms, struct _parse_state ps)
131	0	{
132	0	int c;
133
134	0	loop:
135	0	c = _citrus_memory_stream_peek(ms);
136	0	if (c == 0x00)
137	0	return (EOF);
138	0	if (_citrus_bcs_isspace((uint8_t)c)) {
139	0	_citrus_memory_stream_getc(ms);
140	0	goto loop;
141	0	}
142
143	0	switch (ps->ps_state) {
144	0	case S_BEGIN:
145	0	switch (c) {
146	0	case ':':
147	0	case '-':
148	0	case '/':
149	0	_citrus_memory_stream_getc(ms);
150	0	return (c);
151	0	case '0':
152	0	case '1':
153	0	case '2':
154	0	case '3':
155	0	case '4':
156	0	case '5':
157	0	case '6':
158	0	case '7':
159	0	case '8':
160	0	case '9':
161	0	return (get_imm(ms, ps));
162	0	}
163	0	break;
164	0	case S_OFFSET:
165	0	switch (c) {
166	0	case '/':
167	0	_citrus_memory_stream_getc(ms);
168	0	return (c);
169	0	case '+':
170	0	case '-':
171	0	case '0':
172	0	case '1':
173	0	case '2':
174	0	case '3':
175	0	case '4':
176	0	case '5':
177	0	case '6':
178	0	case '7':
179	0	case '8':
180	0	case '9':
181	0	return (get_imm(ms, ps));
182	0	}
183	0	break;
184	0	}
185	0	return (T_ERR);
186	0	}
187
188		static int
189		parse_zone(struct _citrus_memory_stream ms, struct _parse_state ps, struct _zone *z)
190	0	{
191
192	0	if (get_tok(ms, ps) != T_IMM)
193	0	return (-1);
194	0	z->z_begin = ps->ps_u_imm;
195	0	if (get_tok(ms, ps) != '-')
196	0	return (-1);
197	0	if (get_tok(ms, ps) != T_IMM)
198	0	return (-1);
199	0	z->z_end = ps->ps_u_imm;
200
201	0	if (z->z_begin > z->z_end)
202	0	return (-1);
203
204	0	return (0);
205	0	}
206
207		static int
208		check_rowcol(struct _zone *z, int32_t ofs, uint32_t maxval)
209	0	{
210	0	uint32_t remain;
211
212	0	if (maxval != 0 && z->z_end >= maxval)
213	0	return (-1);
214
215	0	if (ofs > 0) {
216	0	if (maxval == 0)
217		/* this should 0x100000000 - z->z_end */
218	0	remain = (z->z_end == 0) ? 0xFFFFFFFF :
219	0	0xFFFFFFFF - z->z_end + 1;
220	0	else
221	0	remain = maxval - z->z_end;
222	0	if ((uint32_t)ofs > remain)
223	0	return (-1);
224	0	} else if (ofs < 0) {
225	0	if (z->z_begin < (uint32_t)-ofs)
226	0	return (-1);
227	0	}
228
229	0	return (0);
230	0	}
231
232		static int
233		parse_var(struct _citrus_mapper_zone mz, struct _citrus_memory_stream ms)
234	0	{
235	0	struct _parse_state ps;
236	0	uint32_t colmax, rowmax;
237	0	int isrc, ret;
238
239	0	ps.ps_state = S_BEGIN;
240
241	0	if (parse_zone(ms, &ps, &mz->mz_col))
242	0	return (-1);
243
244	0	ret = get_tok(ms, &ps);
245	0	if (ret == '/') {
246		/* rowzone / colzone / bits */
247	0	isrc = 1;
248	0	mz->mz_row = mz->mz_col;
249
250	0	if (parse_zone(ms, &ps, &mz->mz_col))
251	0	return (-1);
252	0	if (get_tok(ms, &ps) != '/')
253	0	return (-1);
254	0	if (get_tok(ms, &ps) != T_IMM)
255	0	return (-1);
256	0	mz->mz_col_bits = ps.ps_u_imm;
257	0	if (mz->mz_col_bits < 0 \|\| mz->mz_col_bits > 32)
258	0	return (-1);
259	0	ret = get_tok(ms, &ps);
260	0	} else {
261		/* colzone */
262	0	isrc = 0;
263	0	mz->mz_col_bits = 32;
264	0	mz->mz_row.z_begin = mz->mz_row.z_end = 0;
265	0	}
266	0	if (ret == ':') {
267		/* offset */
268	0	ps.ps_state = S_OFFSET;
269	0	if (get_tok(ms, &ps) != T_IMM)
270	0	return (-1);
271	0	mz->mz_col_offset = ps.ps_s_imm;
272	0	if (isrc) {
273		/* row/col */
274	0	mz->mz_row_offset = mz->mz_col_offset;
275	0	if (get_tok(ms, &ps) != '/')
276	0	return (-1);
277	0	if (get_tok(ms, &ps) != T_IMM)
278	0	return (-1);
279	0	mz->mz_col_offset = ps.ps_s_imm;
280	0	} else
281	0	mz->mz_row_offset = 0;
282	0	ret = get_tok(ms, &ps);
283	0	}
284	0	if (ret != EOF)
285	0	return (-1);
286
287		/* sanity check */
288	0	colmax = (mz->mz_col_bits == 32) ? 0 : 1 << mz->mz_col_bits;
289	0	rowmax = (mz->mz_col_bits == 0) ? 0 : 1 << (32-mz->mz_col_bits);
290	0	if (check_rowcol(&mz->mz_col, mz->mz_col_offset, colmax))
291	0	return (-1);
292	0	if (check_rowcol(&mz->mz_row, mz->mz_row_offset, rowmax))
293	0	return (-1);
294
295	0	return (0);
296	0	}
297
298		static int
299		/ARGSUSED/
300		_citrus_mapper_zone_mapper_init(struct _citrus_mapper_area * ma ,
301		struct _citrus_csmapper * cm, const char * dir ,
302		const void * var, size_t lenvar,
303		struct _citrus_mapper_traits * mt, size_t lenmt)
304	0	{
305	0	struct _citrus_mapper_zone *mz;
306	0	struct _citrus_memory_stream ms;
307	0	struct _citrus_region r;
308	0	(void) ma;
309	0	(void) dir;
310
311	0	if (lenmt < sizeof(*mt))
312	0	return (EINVAL);
313
314	0	mz = malloc(sizeof(*mz));
315	0	if (mz == NULL)
316	0	return (errno);
317
318	0	mz->mz_col.z_begin = mz->mz_col.z_end = 0;
319	0	mz->mz_row.z_begin = mz->mz_row.z_end = 0;
320	0	mz->mz_col_bits = 0;
321	0	mz->mz_row_offset = 0;
322	0	mz->mz_col_offset = 0;
323
324	0	_citrus_region_init(&r, CITRUS_DECONST(void *, var), lenvar);
325	0	_citrus_memory_stream_bind(&ms, &r);
326	0	if (parse_var(mz, &ms)) {
327	0	free(mz);
328	0	return (EINVAL);
329	0	}
330	0	cm->cm_closure = mz;
331	0	mt->mt_src_max = mt->mt_dst_max = 1; /* 1:1 converter */
332	0	mt->mt_state_size = 0; /* stateless */
333
334	0	return (0);
335	0	}
336
337		static void
338		/ARGSUSED/
339		_citrus_mapper_zone_mapper_uninit(struct _citrus_csmapper *cm )
340	0	{
341	0	if (cm && cm->cm_closure)
342	0	free(cm->cm_closure);
343	0	}
344
345		static int
346		/ARGSUSED/
347		_citrus_mapper_zone_mapper_convert(struct _citrus_csmapper * cm,
348		_citrus_index_t * dst, _citrus_index_t src,
349		void * ps )
350	0	{
351	0	struct _citrus_mapper_zone *mz = cm->cm_closure;
352	0	uint32_t col, row;
353	0	(void) ps;
354
355	0	if (mz->mz_col_bits == 32) {
356	0	col = src;
357	0	row = 0;
358	0	if (col < mz->mz_col.z_begin \|\| col > mz->mz_col.z_end)
359	0	return (_CITRUS_MAPPER_CONVERT_NONIDENTICAL);
360	0	if (mz->mz_col_offset > 0)
361	0	col += (uint32_t)mz->mz_col_offset;
362	0	else
363	0	col -= (uint32_t)-mz->mz_col_offset;
364	0	*dst = col;
365	0	} else {
366	0	col = src & (((uint32_t)1 << mz->mz_col_bits) - 1);
367	0	row = src >> mz->mz_col_bits;
368	0	if (row < mz->mz_row.z_begin \|\| row > mz->mz_row.z_end \|\|
369	0	col < mz->mz_col.z_begin \|\| col > mz->mz_col.z_end)
370	0	return (_CITRUS_MAPPER_CONVERT_NONIDENTICAL);
371	0	if (mz->mz_col_offset > 0)
372	0	col += (uint32_t)mz->mz_col_offset;
373	0	else
374	0	col -= (uint32_t)-mz->mz_col_offset;
375	0	if (mz->mz_row_offset > 0)
376	0	row += (uint32_t)mz->mz_row_offset;
377	0	else
378	0	row -= (uint32_t)-mz->mz_row_offset;
379	0	*dst = col \| (row << mz->mz_col_bits);
380	0	}
381	0	return (_CITRUS_MAPPER_CONVERT_SUCCESS);
382	0	}
383
384		static void
385		/ARGSUSED/
386		_citrus_mapper_zone_mapper_init_state(void)
387	0	{
388
389	0	}