1 | // stb_rect_pack.h - v1.00 - public domain - rectangle packing |
2 | // Sean Barrett 2014 |
3 | // |
4 | // Useful for e.g. packing rectangular textures into an atlas. |
5 | // Does not do rotation. |
6 | // |
7 | // Not necessarily the awesomest packing method, but better than |
8 | // the totally naive one in stb_truetype (which is primarily what |
9 | // this is meant to replace). |
10 | // |
11 | // Has only had a few tests run, may have issues. |
12 | // |
13 | // More docs to come. |
14 | // |
15 | // No memory allocations; uses qsort() and assert() from stdlib. |
16 | // Can override those by defining STBRP_SORT and STBRP_ASSERT. |
17 | // |
18 | // This library currently uses the Skyline Bottom-Left algorithm. |
19 | // |
20 | // Please note: better rectangle packers are welcome! Please |
21 | // implement them to the same API, but with a different init |
22 | // function. |
23 | // |
24 | // Credits |
25 | // |
26 | // Library |
27 | // Sean Barrett |
28 | // Minor features |
29 | // Martins Mozeiko |
30 | // github:IntellectualKitty |
31 | // |
32 | // Bugfixes / warning fixes |
33 | // Jeremy Jaussaud |
34 | // Fabian Giesen |
35 | // |
36 | // Version history: |
37 | // |
38 | // 1.00 (2019-02-25) avoid small space waste; gracefully fail too-wide rectangles |
39 | // 0.99 (2019-02-07) warning fixes |
40 | // 0.11 (2017-03-03) return packing success/fail result |
41 | // 0.10 (2016-10-25) remove cast-away-const to avoid warnings |
42 | // 0.09 (2016-08-27) fix compiler warnings |
43 | // 0.08 (2015-09-13) really fix bug with empty rects (w=0 or h=0) |
44 | // 0.07 (2015-09-13) fix bug with empty rects (w=0 or h=0) |
45 | // 0.06 (2015-04-15) added STBRP_SORT to allow replacing qsort |
46 | // 0.05: added STBRP_ASSERT to allow replacing assert |
47 | // 0.04: fixed minor bug in STBRP_LARGE_RECTS support |
48 | // 0.01: initial release |
49 | // |
50 | // LICENSE |
51 | // |
52 | // See end of file for license information. |
53 | |
54 | ////////////////////////////////////////////////////////////////////////////// |
55 | // |
56 | // INCLUDE SECTION |
57 | // |
58 | |
59 | #ifndef STB_INCLUDE_STB_RECT_PACK_H |
60 | #define STB_INCLUDE_STB_RECT_PACK_H |
61 | |
62 | #define STB_RECT_PACK_VERSION 1 |
63 | |
64 | #ifdef STBRP_STATIC |
65 | #define STBRP_DEF static |
66 | #else |
67 | #define STBRP_DEF extern |
68 | #endif |
69 | |
70 | #ifdef __cplusplus |
71 | extern "C" { |
72 | #endif |
73 | |
74 | typedef struct stbrp_context stbrp_context; |
75 | typedef struct stbrp_node stbrp_node; |
76 | typedef struct stbrp_rect stbrp_rect; |
77 | |
78 | #ifdef STBRP_LARGE_RECTS |
79 | typedef int stbrp_coord; |
80 | #else |
81 | typedef unsigned short stbrp_coord; |
82 | #endif |
83 | |
84 | STBRP_DEF int stbrp_pack_rects (stbrp_context *context, stbrp_rect *rects, int num_rects); |
85 | // Assign packed locations to rectangles. The rectangles are of type |
86 | // 'stbrp_rect' defined below, stored in the array 'rects', and there |
87 | // are 'num_rects' many of them. |
88 | // |
89 | // Rectangles which are successfully packed have the 'was_packed' flag |
90 | // set to a non-zero value and 'x' and 'y' store the minimum location |
91 | // on each axis (i.e. bottom-left in cartesian coordinates, top-left |
92 | // if you imagine y increasing downwards). Rectangles which do not fit |
93 | // have the 'was_packed' flag set to 0. |
94 | // |
95 | // You should not try to access the 'rects' array from another thread |
96 | // while this function is running, as the function temporarily reorders |
97 | // the array while it executes. |
98 | // |
99 | // To pack into another rectangle, you need to call stbrp_init_target |
100 | // again. To continue packing into the same rectangle, you can call |
101 | // this function again. Calling this multiple times with multiple rect |
102 | // arrays will probably produce worse packing results than calling it |
103 | // a single time with the full rectangle array, but the option is |
104 | // available. |
105 | // |
106 | // The function returns 1 if all of the rectangles were successfully |
107 | // packed and 0 otherwise. |
108 | |
109 | struct stbrp_rect |
110 | { |
111 | // reserved for your use: |
112 | int id; |
113 | |
114 | // input: |
115 | stbrp_coord w, h; |
116 | |
117 | // output: |
118 | stbrp_coord x, y; |
119 | int was_packed; // non-zero if valid packing |
120 | |
121 | }; // 16 bytes, nominally |
122 | |
123 | |
124 | STBRP_DEF void stbrp_init_target (stbrp_context *context, int width, int height, stbrp_node *nodes, int num_nodes); |
125 | // Initialize a rectangle packer to: |
126 | // pack a rectangle that is 'width' by 'height' in dimensions |
127 | // using temporary storage provided by the array 'nodes', which is 'num_nodes' long |
128 | // |
129 | // You must call this function every time you start packing into a new target. |
130 | // |
131 | // There is no "shutdown" function. The 'nodes' memory must stay valid for |
132 | // the following stbrp_pack_rects() call (or calls), but can be freed after |
133 | // the call (or calls) finish. |
134 | // |
135 | // Note: to guarantee best results, either: |
136 | // 1. make sure 'num_nodes' >= 'width' |
137 | // or 2. call stbrp_allow_out_of_mem() defined below with 'allow_out_of_mem = 1' |
138 | // |
139 | // If you don't do either of the above things, widths will be quantized to multiples |
140 | // of small integers to guarantee the algorithm doesn't run out of temporary storage. |
141 | // |
142 | // If you do #2, then the non-quantized algorithm will be used, but the algorithm |
143 | // may run out of temporary storage and be unable to pack some rectangles. |
144 | |
145 | STBRP_DEF void stbrp_setup_allow_out_of_mem (stbrp_context *context, int allow_out_of_mem); |
146 | // Optionally call this function after init but before doing any packing to |
147 | // change the handling of the out-of-temp-memory scenario, described above. |
148 | // If you call init again, this will be reset to the default (false). |
149 | |
150 | |
151 | STBRP_DEF void stbrp_setup_heuristic (stbrp_context *context, int heuristic); |
152 | // Optionally select which packing heuristic the library should use. Different |
153 | // heuristics will produce better/worse results for different data sets. |
154 | // If you call init again, this will be reset to the default. |
155 | |
156 | enum |
157 | { |
158 | STBRP_HEURISTIC_Skyline_default=0, |
159 | STBRP_HEURISTIC_Skyline_BL_sortHeight = STBRP_HEURISTIC_Skyline_default, |
160 | STBRP_HEURISTIC_Skyline_BF_sortHeight |
161 | }; |
162 | |
163 | |
164 | ////////////////////////////////////////////////////////////////////////////// |
165 | // |
166 | // the details of the following structures don't matter to you, but they must |
167 | // be visible so you can handle the memory allocations for them |
168 | |
169 | struct stbrp_node |
170 | { |
171 | stbrp_coord x,y; |
172 | stbrp_node *next; |
173 | }; |
174 | |
175 | struct stbrp_context |
176 | { |
177 | int width; |
178 | int height; |
179 | int align; |
180 | int init_mode; |
181 | int heuristic; |
182 | int num_nodes; |
183 | stbrp_node *active_head; |
184 | stbrp_node *free_head; |
185 | stbrp_node [2]; // we allocate two extra nodes so optimal user-node-count is 'width' not 'width+2' |
186 | }; |
187 | |
188 | #ifdef __cplusplus |
189 | } |
190 | #endif |
191 | |
192 | #endif |
193 | |
194 | ////////////////////////////////////////////////////////////////////////////// |
195 | // |
196 | // IMPLEMENTATION SECTION |
197 | // |
198 | |
199 | #ifdef STB_RECT_PACK_IMPLEMENTATION |
200 | #ifndef STBRP_SORT |
201 | #include <stdlib.h> |
202 | #define STBRP_SORT qsort |
203 | #endif |
204 | |
205 | #ifndef STBRP_ASSERT |
206 | #include <assert.h> |
207 | #define STBRP_ASSERT assert |
208 | #endif |
209 | |
210 | #ifdef _MSC_VER |
211 | #define STBRP__NOTUSED(v) (void)(v) |
212 | #else |
213 | #define STBRP__NOTUSED(v) (void)sizeof(v) |
214 | #endif |
215 | |
216 | enum |
217 | { |
218 | STBRP__INIT_skyline = 1 |
219 | }; |
220 | |
221 | STBRP_DEF void stbrp_setup_heuristic(stbrp_context *context, int heuristic) |
222 | { |
223 | switch (context->init_mode) { |
224 | case STBRP__INIT_skyline: |
225 | STBRP_ASSERT(heuristic == STBRP_HEURISTIC_Skyline_BL_sortHeight || heuristic == STBRP_HEURISTIC_Skyline_BF_sortHeight); |
226 | context->heuristic = heuristic; |
227 | break; |
228 | default: |
229 | STBRP_ASSERT(0); |
230 | } |
231 | } |
232 | |
233 | STBRP_DEF void stbrp_setup_allow_out_of_mem(stbrp_context *context, int allow_out_of_mem) |
234 | { |
235 | if (allow_out_of_mem) |
236 | // if it's ok to run out of memory, then don't bother aligning them; |
237 | // this gives better packing, but may fail due to OOM (even though |
238 | // the rectangles easily fit). @TODO a smarter approach would be to only |
239 | // quantize once we've hit OOM, then we could get rid of this parameter. |
240 | context->align = 1; |
241 | else { |
242 | // if it's not ok to run out of memory, then quantize the widths |
243 | // so that num_nodes is always enough nodes. |
244 | // |
245 | // I.e. num_nodes * align >= width |
246 | // align >= width / num_nodes |
247 | // align = ceil(width/num_nodes) |
248 | |
249 | context->align = (context->width + context->num_nodes-1) / context->num_nodes; |
250 | } |
251 | } |
252 | |
253 | STBRP_DEF void stbrp_init_target(stbrp_context *context, int width, int height, stbrp_node *nodes, int num_nodes) |
254 | { |
255 | int i; |
256 | #ifndef STBRP_LARGE_RECTS |
257 | STBRP_ASSERT(width <= 0xffff && height <= 0xffff); |
258 | #endif |
259 | |
260 | for (i=0; i < num_nodes-1; ++i) |
261 | nodes[i].next = &nodes[i+1]; |
262 | nodes[i].next = NULL; |
263 | context->init_mode = STBRP__INIT_skyline; |
264 | context->heuristic = STBRP_HEURISTIC_Skyline_default; |
265 | context->free_head = &nodes[0]; |
266 | context->active_head = &context->extra[0]; |
267 | context->width = width; |
268 | context->height = height; |
269 | context->num_nodes = num_nodes; |
270 | stbrp_setup_allow_out_of_mem(context, 0); |
271 | |
272 | // node 0 is the full width, node 1 is the sentinel (lets us not store width explicitly) |
273 | context->extra[0].x = 0; |
274 | context->extra[0].y = 0; |
275 | context->extra[0].next = &context->extra[1]; |
276 | context->extra[1].x = (stbrp_coord) width; |
277 | #ifdef STBRP_LARGE_RECTS |
278 | context->extra[1].y = (1<<30); |
279 | #else |
280 | context->extra[1].y = 65535; |
281 | #endif |
282 | context->extra[1].next = NULL; |
283 | } |
284 | |
285 | // find minimum y position if it starts at x1 |
286 | static int stbrp__skyline_find_min_y(stbrp_context *c, stbrp_node *first, int x0, int width, int *pwaste) |
287 | { |
288 | stbrp_node *node = first; |
289 | int x1 = x0 + width; |
290 | int min_y, visited_width, waste_area; |
291 | |
292 | STBRP__NOTUSED(c); |
293 | |
294 | STBRP_ASSERT(first->x <= x0); |
295 | |
296 | #if 0 |
297 | // skip in case we're past the node |
298 | while (node->next->x <= x0) |
299 | ++node; |
300 | #else |
301 | STBRP_ASSERT(node->next->x > x0); // we ended up handling this in the caller for efficiency |
302 | #endif |
303 | |
304 | STBRP_ASSERT(node->x <= x0); |
305 | |
306 | min_y = 0; |
307 | waste_area = 0; |
308 | visited_width = 0; |
309 | while (node->x < x1) { |
310 | if (node->y > min_y) { |
311 | // raise min_y higher. |
312 | // we've accounted for all waste up to min_y, |
313 | // but we'll now add more waste for everything we've visted |
314 | waste_area += visited_width * (node->y - min_y); |
315 | min_y = node->y; |
316 | // the first time through, visited_width might be reduced |
317 | if (node->x < x0) |
318 | visited_width += node->next->x - x0; |
319 | else |
320 | visited_width += node->next->x - node->x; |
321 | } else { |
322 | // add waste area |
323 | int under_width = node->next->x - node->x; |
324 | if (under_width + visited_width > width) |
325 | under_width = width - visited_width; |
326 | waste_area += under_width * (min_y - node->y); |
327 | visited_width += under_width; |
328 | } |
329 | node = node->next; |
330 | } |
331 | |
332 | *pwaste = waste_area; |
333 | return min_y; |
334 | } |
335 | |
336 | typedef struct |
337 | { |
338 | int x,y; |
339 | stbrp_node **prev_link; |
340 | } stbrp__findresult; |
341 | |
342 | static stbrp__findresult stbrp__skyline_find_best_pos(stbrp_context *c, int width, int height) |
343 | { |
344 | int best_waste = (1<<30), best_x, best_y = (1 << 30); |
345 | stbrp__findresult fr; |
346 | stbrp_node **prev, *node, *tail, **best = NULL; |
347 | |
348 | // align to multiple of c->align |
349 | width = (width + c->align - 1); |
350 | width -= width % c->align; |
351 | STBRP_ASSERT(width % c->align == 0); |
352 | |
353 | // if it can't possibly fit, bail immediately |
354 | if (width > c->width || height > c->height) { |
355 | fr.prev_link = NULL; |
356 | fr.x = fr.y = 0; |
357 | return fr; |
358 | } |
359 | |
360 | node = c->active_head; |
361 | prev = &c->active_head; |
362 | while (node->x + width <= c->width) { |
363 | int y,waste; |
364 | y = stbrp__skyline_find_min_y(c, node, node->x, width, &waste); |
365 | if (c->heuristic == STBRP_HEURISTIC_Skyline_BL_sortHeight) { // actually just want to test BL |
366 | // bottom left |
367 | if (y < best_y) { |
368 | best_y = y; |
369 | best = prev; |
370 | } |
371 | } else { |
372 | // best-fit |
373 | if (y + height <= c->height) { |
374 | // can only use it if it first vertically |
375 | if (y < best_y || (y == best_y && waste < best_waste)) { |
376 | best_y = y; |
377 | best_waste = waste; |
378 | best = prev; |
379 | } |
380 | } |
381 | } |
382 | prev = &node->next; |
383 | node = node->next; |
384 | } |
385 | |
386 | best_x = (best == NULL) ? 0 : (*best)->x; |
387 | |
388 | // if doing best-fit (BF), we also have to try aligning right edge to each node position |
389 | // |
390 | // e.g, if fitting |
391 | // |
392 | // ____________________ |
393 | // |____________________| |
394 | // |
395 | // into |
396 | // |
397 | // | | |
398 | // | ____________| |
399 | // |____________| |
400 | // |
401 | // then right-aligned reduces waste, but bottom-left BL is always chooses left-aligned |
402 | // |
403 | // This makes BF take about 2x the time |
404 | |
405 | if (c->heuristic == STBRP_HEURISTIC_Skyline_BF_sortHeight) { |
406 | tail = c->active_head; |
407 | node = c->active_head; |
408 | prev = &c->active_head; |
409 | // find first node that's admissible |
410 | while (tail->x < width) |
411 | tail = tail->next; |
412 | while (tail) { |
413 | int xpos = tail->x - width; |
414 | int y,waste; |
415 | STBRP_ASSERT(xpos >= 0); |
416 | // find the left position that matches this |
417 | while (node->next->x <= xpos) { |
418 | prev = &node->next; |
419 | node = node->next; |
420 | } |
421 | STBRP_ASSERT(node->next->x > xpos && node->x <= xpos); |
422 | y = stbrp__skyline_find_min_y(c, node, xpos, width, &waste); |
423 | if (y + height <= c->height) { |
424 | if (y <= best_y) { |
425 | if (y < best_y || waste < best_waste || (waste==best_waste && xpos < best_x)) { |
426 | best_x = xpos; |
427 | STBRP_ASSERT(y <= best_y); |
428 | best_y = y; |
429 | best_waste = waste; |
430 | best = prev; |
431 | } |
432 | } |
433 | } |
434 | tail = tail->next; |
435 | } |
436 | } |
437 | |
438 | fr.prev_link = best; |
439 | fr.x = best_x; |
440 | fr.y = best_y; |
441 | return fr; |
442 | } |
443 | |
444 | static stbrp__findresult stbrp__skyline_pack_rectangle(stbrp_context *context, int width, int height) |
445 | { |
446 | // find best position according to heuristic |
447 | stbrp__findresult res = stbrp__skyline_find_best_pos(context, width, height); |
448 | stbrp_node *node, *cur; |
449 | |
450 | // bail if: |
451 | // 1. it failed |
452 | // 2. the best node doesn't fit (we don't always check this) |
453 | // 3. we're out of memory |
454 | if (res.prev_link == NULL || res.y + height > context->height || context->free_head == NULL) { |
455 | res.prev_link = NULL; |
456 | return res; |
457 | } |
458 | |
459 | // on success, create new node |
460 | node = context->free_head; |
461 | node->x = (stbrp_coord) res.x; |
462 | node->y = (stbrp_coord) (res.y + height); |
463 | |
464 | context->free_head = node->next; |
465 | |
466 | // insert the new node into the right starting point, and |
467 | // let 'cur' point to the remaining nodes needing to be |
468 | // stiched back in |
469 | |
470 | cur = *res.prev_link; |
471 | if (cur->x < res.x) { |
472 | // preserve the existing one, so start testing with the next one |
473 | stbrp_node *next = cur->next; |
474 | cur->next = node; |
475 | cur = next; |
476 | } else { |
477 | *res.prev_link = node; |
478 | } |
479 | |
480 | // from here, traverse cur and free the nodes, until we get to one |
481 | // that shouldn't be freed |
482 | while (cur->next && cur->next->x <= res.x + width) { |
483 | stbrp_node *next = cur->next; |
484 | // move the current node to the free list |
485 | cur->next = context->free_head; |
486 | context->free_head = cur; |
487 | cur = next; |
488 | } |
489 | |
490 | // stitch the list back in |
491 | node->next = cur; |
492 | |
493 | if (cur->x < res.x + width) |
494 | cur->x = (stbrp_coord) (res.x + width); |
495 | |
496 | #ifdef _DEBUG |
497 | cur = context->active_head; |
498 | while (cur->x < context->width) { |
499 | STBRP_ASSERT(cur->x < cur->next->x); |
500 | cur = cur->next; |
501 | } |
502 | STBRP_ASSERT(cur->next == NULL); |
503 | |
504 | { |
505 | int count=0; |
506 | cur = context->active_head; |
507 | while (cur) { |
508 | cur = cur->next; |
509 | ++count; |
510 | } |
511 | cur = context->free_head; |
512 | while (cur) { |
513 | cur = cur->next; |
514 | ++count; |
515 | } |
516 | STBRP_ASSERT(count == context->num_nodes+2); |
517 | } |
518 | #endif |
519 | |
520 | return res; |
521 | } |
522 | |
523 | static int rect_height_compare(const void *a, const void *b) |
524 | { |
525 | const stbrp_rect *p = (const stbrp_rect *) a; |
526 | const stbrp_rect *q = (const stbrp_rect *) b; |
527 | if (p->h > q->h) |
528 | return -1; |
529 | if (p->h < q->h) |
530 | return 1; |
531 | return (p->w > q->w) ? -1 : (p->w < q->w); |
532 | } |
533 | |
534 | static int rect_original_order(const void *a, const void *b) |
535 | { |
536 | const stbrp_rect *p = (const stbrp_rect *) a; |
537 | const stbrp_rect *q = (const stbrp_rect *) b; |
538 | return (p->was_packed < q->was_packed) ? -1 : (p->was_packed > q->was_packed); |
539 | } |
540 | |
541 | #ifdef STBRP_LARGE_RECTS |
542 | #define STBRP__MAXVAL 0xffffffff |
543 | #else |
544 | #define STBRP__MAXVAL 0xffff |
545 | #endif |
546 | |
547 | STBRP_DEF int stbrp_pack_rects(stbrp_context *context, stbrp_rect *rects, int num_rects) |
548 | { |
549 | int i, all_rects_packed = 1; |
550 | |
551 | // we use the 'was_packed' field internally to allow sorting/unsorting |
552 | for (i=0; i < num_rects; ++i) { |
553 | rects[i].was_packed = i; |
554 | } |
555 | |
556 | // sort according to heuristic |
557 | STBRP_SORT(rects, num_rects, sizeof(rects[0]), rect_height_compare); |
558 | |
559 | for (i=0; i < num_rects; ++i) { |
560 | if (rects[i].w == 0 || rects[i].h == 0) { |
561 | rects[i].x = rects[i].y = 0; // empty rect needs no space |
562 | } else { |
563 | stbrp__findresult fr = stbrp__skyline_pack_rectangle(context, rects[i].w, rects[i].h); |
564 | if (fr.prev_link) { |
565 | rects[i].x = (stbrp_coord) fr.x; |
566 | rects[i].y = (stbrp_coord) fr.y; |
567 | } else { |
568 | rects[i].x = rects[i].y = STBRP__MAXVAL; |
569 | } |
570 | } |
571 | } |
572 | |
573 | // unsort |
574 | STBRP_SORT(rects, num_rects, sizeof(rects[0]), rect_original_order); |
575 | |
576 | // set was_packed flags and all_rects_packed status |
577 | for (i=0; i < num_rects; ++i) { |
578 | rects[i].was_packed = !(rects[i].x == STBRP__MAXVAL && rects[i].y == STBRP__MAXVAL); |
579 | if (!rects[i].was_packed) |
580 | all_rects_packed = 0; |
581 | } |
582 | |
583 | // return the all_rects_packed status |
584 | return all_rects_packed; |
585 | } |
586 | #endif |
587 | |
588 | /* |
589 | ------------------------------------------------------------------------------ |
590 | This software is available under 2 licenses -- choose whichever you prefer. |
591 | ------------------------------------------------------------------------------ |
592 | ALTERNATIVE A - MIT License |
593 | Copyright (c) 2017 Sean Barrett |
594 | Permission is hereby granted, free of charge, to any person obtaining a copy of |
595 | this software and associated documentation files (the "Software"), to deal in |
596 | the Software without restriction, including without limitation the rights to |
597 | use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies |
598 | of the Software, and to permit persons to whom the Software is furnished to do |
599 | so, subject to the following conditions: |
600 | The above copyright notice and this permission notice shall be included in all |
601 | copies or substantial portions of the Software. |
602 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
603 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
604 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
605 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
606 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
607 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
608 | SOFTWARE. |
609 | ------------------------------------------------------------------------------ |
610 | ALTERNATIVE B - Public Domain (www.unlicense.org) |
611 | This is free and unencumbered software released into the public domain. |
612 | Anyone is free to copy, modify, publish, use, compile, sell, or distribute this |
613 | software, either in source code form or as a compiled binary, for any purpose, |
614 | commercial or non-commercial, and by any means. |
615 | In jurisdictions that recognize copyright laws, the author or authors of this |
616 | software dedicate any and all copyright interest in the software to the public |
617 | domain. We make this dedication for the benefit of the public at large and to |
618 | the detriment of our heirs and successors. We intend this dedication to be an |
619 | overt act of relinquishment in perpetuity of all present and future rights to |
620 | this software under copyright law. |
621 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
622 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
623 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
624 | AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
625 | ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
626 | WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
627 | ------------------------------------------------------------------------------ |
628 | */ |
629 | |