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comparison CSP2/CSP2_env/env-d9b9114564458d9d-741b3de822f2aaca6c6caa4325c4afce/include/X11/Xregion.h @ 69:33d812a61356

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planemo upload commit 2e9511a184a1ca667c7be0c6321a36dc4e3d116d
author jpayne
date Tue, 18 Mar 2025 17:55:14 -0400
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67:0e9998148a16 69:33d812a61356
1 /************************************************************************
2
3 Copyright 1987, 1998 The Open Group
4
5 Permission to use, copy, modify, distribute, and sell this software and its
6 documentation for any purpose is hereby granted without fee, provided that
7 the above copyright notice appear in all copies and that both that
8 copyright notice and this permission notice appear in supporting
9 documentation.
10
11 The above copyright notice and this permission notice shall be included in
12 all copies or substantial portions of the Software.
13
14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
18 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20
21 Except as contained in this notice, the name of The Open Group shall not be
22 used in advertising or otherwise to promote the sale, use or other dealings
23 in this Software without prior written authorization from The Open Group.
24
25
26 Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
27
28 All Rights Reserved
29
30 Permission to use, copy, modify, and distribute this software and its
31 documentation for any purpose and without fee is hereby granted,
32 provided that the above copyright notice appear in all copies and that
33 both that copyright notice and this permission notice appear in
34 supporting documentation, and that the name of Digital not be
35 used in advertising or publicity pertaining to distribution of the
36 software without specific, written prior permission.
37
38 DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
39 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
40 DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
41 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
42 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
43 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
44 SOFTWARE.
45
46 ************************************************************************/
47
48 #ifndef _X11_XREGION_H_
49 #define _X11_XREGION_H_
50
51 typedef struct {
52 short x1, x2, y1, y2;
53 } Box, BOX, BoxRec, *BoxPtr;
54
55 typedef struct {
56 short x, y, width, height;
57 }RECTANGLE, RectangleRec, *RectanglePtr;
58
59 #define TRUE 1
60 #define FALSE 0
61 #define MAXSHORT 32767
62 #define MINSHORT -MAXSHORT
63 #ifndef MAX
64 #define MAX(a,b) (((a) > (b)) ? (a) : (b))
65 #endif
66 #ifndef MIN
67 #define MIN(a,b) (((a) < (b)) ? (a) : (b))
68 #endif
69
70
71 /*
72 * clip region
73 */
74
75 typedef struct _XRegion {
76 long size;
77 long numRects;
78 BOX *rects;
79 BOX extents;
80 } REGION;
81
82 /* Xutil.h contains the declaration:
83 * typedef struct _XRegion *Region;
84 */
85
86 /* 1 if two BOXs overlap.
87 * 0 if two BOXs do not overlap.
88 * Remember, x2 and y2 are not in the region
89 */
90 #define EXTENTCHECK(r1, r2) \
91 ((r1)->x2 > (r2)->x1 && \
92 (r1)->x1 < (r2)->x2 && \
93 (r1)->y2 > (r2)->y1 && \
94 (r1)->y1 < (r2)->y2)
95
96 /*
97 * update region extents
98 */
99 #define EXTENTS(r,idRect){\
100 if((r)->x1 < (idRect)->extents.x1)\
101 (idRect)->extents.x1 = (r)->x1;\
102 if((r)->y1 < (idRect)->extents.y1)\
103 (idRect)->extents.y1 = (r)->y1;\
104 if((r)->x2 > (idRect)->extents.x2)\
105 (idRect)->extents.x2 = (r)->x2;\
106 if((r)->y2 > (idRect)->extents.y2)\
107 (idRect)->extents.y2 = (r)->y2;\
108 }
109
110 /*
111 * Check to see if there is enough memory in the present region.
112 */
113 #define MEMCHECK(reg, rect, firstrect){\
114 if ((reg)->numRects >= ((reg)->size - 1)){\
115 BoxPtr tmpRect = Xrealloc ((firstrect), \
116 (2 * (sizeof(BOX)) * ((reg)->size))); \
117 if (tmpRect == NULL) \
118 return(0);\
119 (firstrect) = tmpRect; \
120 (reg)->size *= 2;\
121 (rect) = &(firstrect)[(reg)->numRects];\
122 }\
123 }
124
125 /* this routine checks to see if the previous rectangle is the same
126 * or subsumes the new rectangle to add.
127 */
128
129 #define CHECK_PREVIOUS(Reg, R, Rx1, Ry1, Rx2, Ry2)\
130 (!(((Reg)->numRects > 0)&&\
131 ((R-1)->y1 == (Ry1)) &&\
132 ((R-1)->y2 == (Ry2)) &&\
133 ((R-1)->x1 <= (Rx1)) &&\
134 ((R-1)->x2 >= (Rx2))))
135
136 /* add a rectangle to the given Region */
137 #define ADDRECT(reg, r, rx1, ry1, rx2, ry2){\
138 if (((rx1) < (rx2)) && ((ry1) < (ry2)) &&\
139 CHECK_PREVIOUS((reg), (r), (rx1), (ry1), (rx2), (ry2))){\
140 (r)->x1 = (rx1);\
141 (r)->y1 = (ry1);\
142 (r)->x2 = (rx2);\
143 (r)->y2 = (ry2);\
144 EXTENTS((r), (reg));\
145 (reg)->numRects++;\
146 (r)++;\
147 }\
148 }
149
150
151
152 /* add a rectangle to the given Region */
153 #define ADDRECTNOX(reg, r, rx1, ry1, rx2, ry2){\
154 if ((rx1 < rx2) && (ry1 < ry2) &&\
155 CHECK_PREVIOUS((reg), (r), (rx1), (ry1), (rx2), (ry2))){\
156 (r)->x1 = (rx1);\
157 (r)->y1 = (ry1);\
158 (r)->x2 = (rx2);\
159 (r)->y2 = (ry2);\
160 (reg)->numRects++;\
161 (r)++;\
162 }\
163 }
164
165 #define EMPTY_REGION(pReg) pReg->numRects = 0
166
167 #define REGION_NOT_EMPTY(pReg) pReg->numRects
168
169 #define INBOX(r, x, y) \
170 ( ( ((r).x2 > x)) && \
171 ( ((r).x1 <= x)) && \
172 ( ((r).y2 > y)) && \
173 ( ((r).y1 <= y)) )
174
175 /*
176 * number of points to buffer before sending them off
177 * to scanlines() : Must be an even number
178 */
179 #define NUMPTSTOBUFFER 200
180
181 /*
182 * used to allocate buffers for points and link
183 * the buffers together
184 */
185 typedef struct _POINTBLOCK {
186 XPoint pts[NUMPTSTOBUFFER];
187 struct _POINTBLOCK *next;
188 } POINTBLOCK;
189
190 #endif /* _X11_XREGION_H_ */