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- /* Copyright (C) 1989, 1990 Aladdin Enterprises. All rights reserved.
- Distributed by Free Software Foundation, Inc.
-
- This file is part of Ghostscript.
-
- Ghostscript is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY. No author or distributor accepts responsibility
- to anyone for the consequences of using it or for whether it serves any
- particular purpose or works at all, unless he says so in writing. Refer
- to the Ghostscript General Public License for full details.
-
- Everyone is granted permission to copy, modify and redistribute
- Ghostscript, but only under the conditions described in the Ghostscript
- General Public License. A copy of this license is supposed to have been
- given to you along with Ghostscript so you can know your rights and
- responsibilities. It should be in a file named COPYING. Among other
- things, the copyright notice and this notice must be preserved on all
- copies. */
-
- /* gs.h */
- /* Common definitions for Ghostscript library */
- #include <stdio.h>
- #include "std.h"
-
- /* Ghostscript never uses stdin/out/err directly. */
- extern FILE *gs_stdin, *gs_stdout, *gs_stderr;
-
- /* Redefine all the relevant stdio functions to use the above. */
- /* Some functions we make illegal, rather than redefining them. */
- #undef stdin
- #define stdin gs_stdin
- #undef stdout
- #define stdout gs_stdout
- #undef stderr
- #define stderr gs_stderr
- #undef fgetchar
- #define fgetchar() fgetc(stdin)
- #undef fputchar
- #define fputchar(c) fputc(c, stdout)
- #undef getchar
- #define getchar() getc(stdin)
- #undef gets
- #define gets Function._gets_.unavailable
- /* We should do something about perror, but since many Unix systems */
- /* don't provide the strerror function, we can't. (Neither the */
- /* Ghostscript kernel nor any Aladdin-maintained driver uses perror.) */
- #undef printf
- #define printf Function._printf_.unavailable
- #undef putchar
- #define putchar(c) fputc(c, stdout)
- #undef puts
- #define puts(s) (fputs(s, stdout), putchar('\n'))
- #undef scanf
- #define scanf Function._scanf_.unavailable
- #undef vprintf
- #define vprintf Function._vprintf_.unavailable
- #undef vscanf
- #define vscanf Function._vscanf_.unavailable
-
- /* Representation of a point. */
- typedef struct gs_point_s {
- double x, y;
- } gs_point;
- typedef struct gs_int_point_s {
- int x, y;
- } gs_int_point;
- /* Representation of a rectangle. */
- /* Note that rectangles are half-open, i.e.: their width is */
- /* q.x-p.x and their height is q.y-p.y; they include the points */
- /* (x,y) such that p.x<=x<q.x and p.y<=y<q.y. */
- typedef struct gs_rect_s {
- gs_point p, q; /* origin point, corner point */
- } gs_rect;
- typedef struct gs_int_rect_s {
- gs_int_point p, q;
- } gs_int_rect;
-
- /* So many routines use the graphics state */
- /* that we may as well declare the abstract type here. */
- typedef struct gs_state_s gs_state;
-
- /* A number of interfaces involve user-specified allocation */
- /* and deallocation procedures, so we define the structure here. */
- typedef struct {
- proc_alloc_t alloc;
- proc_free_t free;
- } gs_memory_procs;
- /* We define our own versions of malloc and free that conform */
- /* to the types proc_alloc_t and proc_free_t: */
- char *gs_malloc(P3(uint, uint, const char *));
- void gs_free(P4(char *, uint, uint, const char *));
-