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a09e091a JB |
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 | Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts. | |
26 | ||
27 | All Rights Reserved | |
28 | ||
29 | Permission to use, copy, modify, and distribute this software and its | |
30 | documentation for any purpose and without fee is hereby granted, | |
31 | provided that the above copyright notice appear in all copies and that | |
32 | both that copyright notice and this permission notice appear in | |
33 | supporting documentation, and that the name of Digital not be | |
34 | used in advertising or publicity pertaining to distribution of the | |
35 | software without specific, written prior permission. | |
36 | ||
37 | DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING | |
38 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL | |
39 | DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR | |
40 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, | |
41 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, | |
42 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS | |
43 | SOFTWARE. | |
44 | ||
45 | ******************************************************************/ | |
46 | /* | |
47 | * mipoly.c | |
48 | * | |
49 | * Written by Brian Kelleher; June 1986 | |
50 | * | |
51 | * Draw polygons. This routine translates the point by the | |
52 | * origin if pGC->miTranslate is non-zero, and calls | |
53 | * to the appropriate routine to actually scan convert the | |
54 | * polygon. | |
55 | */ | |
56 | #ifdef HAVE_DIX_CONFIG_H | |
57 | #include <dix-config.h> | |
58 | #endif | |
59 | ||
60 | #include <X11/X.h> | |
61 | #include "windowstr.h" | |
62 | #include "gcstruct.h" | |
63 | #include "pixmapstr.h" | |
64 | #include "mi.h" | |
65 | #include "regionstr.h" | |
66 | ||
67 | void | |
68 | miFillPolygon(DrawablePtr dst, GCPtr pgc, | |
69 | int shape, int mode, int count, DDXPointPtr pPts) | |
70 | { | |
71 | int i; | |
72 | int xorg, yorg; | |
73 | DDXPointPtr ppt; | |
74 | ||
75 | if (count == 0) | |
76 | return; | |
77 | ||
78 | ppt = pPts; | |
79 | if (pgc->miTranslate) { | |
80 | xorg = dst->x; | |
81 | yorg = dst->y; | |
82 | ||
83 | if (mode == CoordModeOrigin) { | |
84 | for (i = 0; i < count; i++) { | |
85 | ppt->x += xorg; | |
86 | ppt++->y += yorg; | |
87 | } | |
88 | } | |
89 | else { | |
90 | ppt->x += xorg; | |
91 | ppt++->y += yorg; | |
92 | for (i = 1; i < count; i++) { | |
93 | ppt->x += (ppt - 1)->x; | |
94 | ppt->y += (ppt - 1)->y; | |
95 | ppt++; | |
96 | } | |
97 | } | |
98 | } | |
99 | else { | |
100 | if (mode == CoordModePrevious) { | |
101 | ppt++; | |
102 | for (i = 1; i < count; i++) { | |
103 | ppt->x += (ppt - 1)->x; | |
104 | ppt->y += (ppt - 1)->y; | |
105 | ppt++; | |
106 | } | |
107 | } | |
108 | } | |
109 | if (shape == Convex) | |
110 | miFillConvexPoly(dst, pgc, count, pPts); | |
111 | else | |
112 | miFillGeneralPoly(dst, pgc, count, pPts); | |
113 | } |