projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| a14dfc57 WJ |
1 | /* Copyright (C) 1991 Aladdin Enterprises. All rights reserved. |
| 2 | Distributed by Free Software Foundation, Inc. | |
| 3 | ||
| 4 | This file is part of Ghostscript. | |
| 5 | ||
| 6 | Ghostscript is distributed in the hope that it will be useful, but | |
| 7 | WITHOUT ANY WARRANTY. No author or distributor accepts responsibility | |
| 8 | to anyone for the consequences of using it or for whether it serves any | |
| 9 | particular purpose or works at all, unless he says so in writing. Refer | |
| 10 | to the Ghostscript General Public License for full details. | |
| 11 | ||
| 12 | Everyone is granted permission to copy, modify and redistribute | |
| 13 | Ghostscript, but only under the conditions described in the Ghostscript | |
| 14 | General Public License. A copy of this license is supposed to have been | |
| 15 | given to you along with Ghostscript so you can know your rights and | |
| 16 | responsibilities. It should be in a file named COPYING. Among other | |
| 17 | things, the copyright notice and this notice must be preserved on all | |
| 18 | copies. */ | |
| 19 | ||
| 20 | /* iutil.h */ | |
| 21 | /* Prototypes for procedures in iutil.c */ | |
| 22 | ||
| 23 | /* ------ Object utilities ------ */ | |
| 24 | ||
| 25 | /* Copy refs from one place to another. */ | |
| 26 | /* (If we are copying to the stack, we can just use memcpy.) */ | |
| 27 | extern void refcpy_to_new(P3(ref *to, const ref *from, uint size)); | |
| 28 | extern void refcpy_to_old(P4(ref *to, const ref *from, uint size, const char *client_name)); | |
| 29 | /* Fill an array with nulls. */ | |
| 30 | extern void refset_null(P2(ref *to, uint size)); | |
| 31 | ||
| 32 | /* Compare two objects for equality. Return 1 if equal, 0 if not. */ | |
| 33 | extern int obj_eq(P2(const ref *, const ref *)); | |
| 34 | ||
| 35 | /* Create a printable representation of an object, a la cvs. */ | |
| 36 | /* Return 0 if OK, <0 if the destination wasn't large enough. */ | |
| 37 | extern int obj_cvs(P4(const ref *, byte *, uint, uint *)); | |
| 38 | ||
| 39 | /* ------ String utilities ------ */ | |
| 40 | ||
| 41 | /* Convert a C string to a Ghostscript string */ | |
| 42 | extern int string_to_ref(P3(const char *, ref *, const char *)); | |
| 43 | ||
| 44 | /* Convert a Ghostscript string to a C string. */ | |
| 45 | /* Return 0 iff the buffer can't be allocated. */ | |
| 46 | extern char *ref_to_string(P2(const ref *, const char *)); | |
| 47 | ||
| 48 | /* ------ Operand utilities ------ */ | |
| 49 | ||
| 50 | /* Get N numeric operands from the stack. */ | |
| 51 | /* Note that the first argument must be ref * rather than os_ptr, */ | |
| 52 | /* because num_params is sometimes used elsewhere than */ | |
| 53 | /* on the operand stack. */ | |
| 54 | extern int num_params(P3(const ref *, int, float *)); | |
| 55 | ||
| 56 | /* Get a real parameter. */ | |
| 57 | extern int real_param(P2(const ref *, float *)); | |
| 58 | ||
| 59 | /* Check for a matrix operand with read access. */ | |
| 60 | struct gs_matrix_s; | |
| 61 | extern int read_matrix(P2(const ref *, struct gs_matrix_s *)); | |
| 62 | ||
| 63 | /* Check for a matrix operand with write access. */ | |
| 64 | extern int write_matrix(P1(ref *)); |