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- /* Copyright (C) 1989, 1990, 1993 Aladdin Enterprises. All rights reserved.
-
- 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. */
-
- /* gstypes.h */
- /* Miscellaneous common types for Ghostscript library */
-
- /* 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. */
- struct gs_state_s;
- typedef struct gs_state_s gs_state;
-
- /*
- * Types for client-supplied allocate and free procedures.
- * For accountability, debugging, and error messages,
- * we pass an identifying string to alloc and free.
- * Note that the arguments are like calloc, not like malloc,
- * but an alloc procedure doesn't clear the block.
- */
- typedef char *(*gs_proc_alloc_t)(P3(unsigned num_elements, unsigned element_size, const char *client_name));
- typedef void (*gs_proc_free_t)(P4(char *data, unsigned num_elements, unsigned element_size, const char *client_name));
- /*
- * These procedures are never supplied directly, only as elements of
- * a memory_procs structure. Someday the memory manager will be a real
- * 'object'....
- */
- typedef struct {
- gs_proc_alloc_t alloc;
- gs_proc_free_t free;
- } gs_memory_procs;
- /*
- * We define our own versions of malloc and free that conform
- * to the types gs_proc_alloc_t and gs_proc_free_t:
- */
- char *gs_malloc(P3(uint, uint, const char *));
- void gs_free(P4(char *, uint, uint, const char *));
- extern const gs_memory_procs gs_default_memory_procs;
-