| 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 | #ifdef HAVE_DIX_CONFIG_H |
| 47 | #include <dix-config.h> |
| 48 | #endif |
| 49 | |
| 50 | #include <X11/X.h> |
| 51 | #include <X11/Xprotostr.h> |
| 52 | #include "regionstr.h" |
| 53 | #include "gcstruct.h" |
| 54 | #include "pixmap.h" |
| 55 | #include "mi.h" |
| 56 | |
| 57 | void |
| 58 | miPolyRectangle(DrawablePtr pDraw, GCPtr pGC, int nrects, xRectangle *pRects) |
| 59 | { |
| 60 | int i; |
| 61 | xRectangle *pR = pRects; |
| 62 | DDXPointRec rect[5]; |
| 63 | int bound_tmp; |
| 64 | |
| 65 | #define MINBOUND(dst,eqn) bound_tmp = eqn; \ |
| 66 | if (bound_tmp < -32768) \ |
| 67 | bound_tmp = -32768; \ |
| 68 | dst = bound_tmp; |
| 69 | |
| 70 | #define MAXBOUND(dst,eqn) bound_tmp = eqn; \ |
| 71 | if (bound_tmp > 32767) \ |
| 72 | bound_tmp = 32767; \ |
| 73 | dst = bound_tmp; |
| 74 | |
| 75 | #define MAXUBOUND(dst,eqn) bound_tmp = eqn; \ |
| 76 | if (bound_tmp > 65535) \ |
| 77 | bound_tmp = 65535; \ |
| 78 | dst = bound_tmp; |
| 79 | |
| 80 | if (pGC->lineStyle == LineSolid && pGC->joinStyle == JoinMiter && |
| 81 | pGC->lineWidth != 0) { |
| 82 | xRectangle *tmp, *t; |
| 83 | int ntmp; |
| 84 | int offset1, offset2, offset3; |
| 85 | int x, y, width, height; |
| 86 | |
| 87 | ntmp = (nrects << 2); |
| 88 | offset2 = pGC->lineWidth; |
| 89 | offset1 = offset2 >> 1; |
| 90 | offset3 = offset2 - offset1; |
| 91 | tmp = malloc(ntmp * sizeof(xRectangle)); |
| 92 | if (!tmp) |
| 93 | return; |
| 94 | t = tmp; |
| 95 | for (i = 0; i < nrects; i++) { |
| 96 | x = pR->x; |
| 97 | y = pR->y; |
| 98 | width = pR->width; |
| 99 | height = pR->height; |
| 100 | pR++; |
| 101 | if (width == 0 && height == 0) { |
| 102 | rect[0].x = x; |
| 103 | rect[0].y = y; |
| 104 | rect[1].x = x; |
| 105 | rect[1].y = y; |
| 106 | (*pGC->ops->Polylines) (pDraw, pGC, CoordModeOrigin, 2, rect); |
| 107 | } |
| 108 | else if (height < offset2 || width < offset1) { |
| 109 | if (height == 0) { |
| 110 | t->x = x; |
| 111 | t->width = width; |
| 112 | } |
| 113 | else { |
| 114 | MINBOUND(t->x, x - offset1) |
| 115 | MAXUBOUND(t->width, width + offset2) |
| 116 | } |
| 117 | if (width == 0) { |
| 118 | t->y = y; |
| 119 | t->height = height; |
| 120 | } |
| 121 | else { |
| 122 | MINBOUND(t->y, y - offset1) |
| 123 | MAXUBOUND(t->height, height + offset2) |
| 124 | } |
| 125 | t++; |
| 126 | } |
| 127 | else { |
| 128 | MINBOUND(t->x, x - offset1) |
| 129 | MINBOUND(t->y, y - offset1) |
| 130 | MAXUBOUND(t->width, width + offset2) |
| 131 | t->height = offset2; |
| 132 | t++; |
| 133 | MINBOUND(t->x, x - offset1) |
| 134 | MAXBOUND(t->y, y + offset3); |
| 135 | t->width = offset2; |
| 136 | t->height = height - offset2; |
| 137 | t++; |
| 138 | MAXBOUND(t->x, x + width - offset1); |
| 139 | MAXBOUND(t->y, y + offset3) |
| 140 | t->width = offset2; |
| 141 | t->height = height - offset2; |
| 142 | t++; |
| 143 | MINBOUND(t->x, x - offset1) |
| 144 | MAXBOUND(t->y, y + height - offset1) |
| 145 | MAXUBOUND(t->width, width + offset2) |
| 146 | t->height = offset2; |
| 147 | t++; |
| 148 | } |
| 149 | } |
| 150 | (*pGC->ops->PolyFillRect) (pDraw, pGC, t - tmp, tmp); |
| 151 | free((pointer) tmp); |
| 152 | } |
| 153 | else { |
| 154 | |
| 155 | for (i = 0; i < nrects; i++) { |
| 156 | rect[0].x = pR->x; |
| 157 | rect[0].y = pR->y; |
| 158 | |
| 159 | MAXBOUND(rect[1].x, pR->x + (int) pR->width) |
| 160 | rect[1].y = rect[0].y; |
| 161 | |
| 162 | rect[2].x = rect[1].x; |
| 163 | MAXBOUND(rect[2].y, pR->y + (int) pR->height); |
| 164 | |
| 165 | rect[3].x = rect[0].x; |
| 166 | rect[3].y = rect[2].y; |
| 167 | |
| 168 | rect[4].x = rect[0].x; |
| 169 | rect[4].y = rect[0].y; |
| 170 | |
| 171 | (*pGC->ops->Polylines) (pDraw, pGC, CoordModeOrigin, 5, rect); |
| 172 | pR++; |
| 173 | } |
| 174 | } |
| 175 | } |