Check-in [707575488b]
Not logged in

Many hyperlinks are disabled.
Use anonymous login to enable hyperlinks.

Overview
Comment:merge with trunk
Timelines: family | ancestors | descendants | both | wtf-8-experiment
Files: files | file ages | folders
SHA1: 707575488b53265b048f24d82af7917b31d69ef9
User & Date: chw 2019-08-30 15:58:38
Context
2019-09-02
12:01
merge with trunk check-in: 48cced02cb user: chw tags: wtf-8-experiment
2019-08-30
15:58
merge with trunk check-in: 707575488b user: chw tags: wtf-8-experiment
15:57
add missing files check-in: ce8062e77f user: chw tags: trunk
15:51
merge with trunk check-in: 773eaed1f3 user: chw tags: wtf-8-experiment
Changes

Added jni/sdl2tk/generic/tkArray.h.





































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
/*
 * tkArray.h --
 *
 * An array is a sequence of items, stored in a contiguous memory region.
 * Random access to any item is very fast. New items can be either appended
 * or prepended. An array may be traversed in the forward or backward direction.
 *
 * Copyright (c) 2018-2019 by Gregor Cramer.
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

/*
 * Note that this file will not be included in header files, it is the purpose
 * of this file to be included in source files only. Thus we are not using the
 * prefix "Tk_" here for functions, because all the functions have private scope.
 */
 
/*
 * -------------------------------------------------------------------------------
 * Use the array in the following way:
 * -------------------------------------------------------------------------------
 * typedef struct { int key, value; } Pair;
 * TK_PTR_ARRAY_DEFINE(MyArray, Pair);
 * MyArray *arr = NULL;
 * if (MyArray_IsEmpty(arr)) {
 *     MyArray_Append(&arr, MakePair(1, 2));
 *     MyArray_Append(&arr, MakePair(2, 3));
 *     for (i = 0; i < MyArray_Size(arr); ++i) {
 *         Pair *p = MyArray_Get(arr, i);
 *         printf("%d -> %d\n", p->key, p->value);
 *         ckfree(p);
 *     }
 *     MyArray_Free(&arr);
 *     assert(arr == NULL);
 * }
 * -------------------------------------------------------------------------------
 * Or with aggregated elements:
 * -------------------------------------------------------------------------------
 * typedef struct { int key, value; } Pair;
 * TK_ARRAY_DEFINE(MyArray, Pair);
 * Pair p1 = { 1, 2 };
 * Pair p2 = { 2, 3 };
 * MyArray *arr = NULL;
 * if (MyArray_IsEmpty(arr)) {
 *     MyArray_Append(&arr, p1);
 *     MyArray_Append(&arr, p2);
 *     for (i = 0; i < MyArray_Size(arr); ++i) {
 *         const Pair *p = MyArray_Get(arr, i);
 *         printf("%d -> %d\n", p->key, p->value);
 *     }
 *     MyArray_Free(&arr);
 *     assert(arr == NULL);
 * }
 * -------------------------------------------------------------------------------
 */
 
/*************************************************************************/
/*
 * Two array types will be provided:
 * Use TK_ARRAY_DEFINE if your array is aggregating the elements. Use
 * TK_PTR_ARRAY_DEFINE if your array contains pointers to elements. But
 * in latter case the array is not responsible for the lifetime of the
 * elements.
 */
/*************************************************************************/
/*
 * Array_ElemSize: Returns the memory size for one array element.
 */
/*************************************************************************/
/*
 * Array_BufferSize: Returns the memory size for given number of elements.
 */
/*************************************************************************/
/*
 * Array_IsEmpty: Array is empty?
 */
/*************************************************************************/
/*
 * Array_Size: Number of elements in array.
 */
/*************************************************************************/
/*
 * Array_Capacity: Capacity of given array. This is the maximal number of
 * elements fitting into current array memory without resizing the buffer.
 */
/*************************************************************************/
/*
 * Array_SetSize: Set array size, new size must not exceed the capacity of
 * the array. This function has to be used with care when increasing the
 * array size.
 */
/*************************************************************************/
/*
 * Array_First: Returns position of first element in array. Given array
 * may be NULL.
 */
/*************************************************************************/
/*
 * Array_Last: Returns position after last element in array. Given array
 * may be empty.
 */
/*************************************************************************/
/*
 * Array_Front: Returns first element in array. Given array must not be
 * empty.
 */
/*************************************************************************/
/*
 * Array_Back: Returns last element in array. Given array must not be
 * empty.
 */
/*************************************************************************/
/*
 * Array_Resize: Resize buffer of array for given number of elements. The
 * array may grow or shrink. Note that this function is not initializing
 * the increased buffer.
 */
/*************************************************************************/
/*
 * Array_ResizeAndClear: Resize buffer of array for given number of
 * elements. The array may grow or shrink. The increased memory will be
 * filled with zeroes.
 */
/*************************************************************************/
/*
 * Array_Clear: Fill specified range with zeroes.
 */
/*************************************************************************/
/*
 * Array_Free: Resize array to size zero. This function will release the
 * array buffer.
 */
/*************************************************************************/
/*
 * Array_Append: Insert given element after end of array.
 */
/*************************************************************************/
/*
 * Array_PopBack: Shrink array by one element. Given array must not be
 * empty.
 */
/*************************************************************************/
/*
 * Array_Get: Random access to array element at given position. The given
 * index must not exceed current array size.
 */
/*************************************************************************/
/*
 * Array_Set: Replace array element at given position with new value. The
 * given index must not exceed current array size.
 */
/*************************************************************************/
/*
 * Array_Find: Return index position of element which matches given
 * argument. If not found then -1 will be returned.
 */
/*************************************************************************/
 
#ifndef TK_ARRAY_DEFINED
#define TK_ARRAY_DEFINED

#include "tkInt.h"

#if defined(__GNUC__) || defined(__clang__)
# define __TK_ARRAY_UNUSED __attribute__((unused))
#else
# define __TK_ARRAY_UNUSED
#endif

#define TK_ARRAY_DEFINE(AT, ElemType) /* AT = type of array */			\
/* ------------------------------------------------------------------------- */	\
typedef struct AT {								\
    size_t size;								\
    size_t capacity;								\
    ElemType buf[1];								\
} AT;										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_Init(AT *arr)								\
{										\
    assert(arr);								\
    arr->size = 0;								\
    arr->capacity = 0;								\
}										\
										\
__TK_ARRAY_UNUSED								\
static size_t									\
AT##_ElemSize()									\
{										\
    return sizeof(ElemType);							\
}										\
										\
__TK_ARRAY_UNUSED								\
static size_t									\
AT##_BufferSize(size_t numElems)						\
{										\
    return numElems*sizeof(ElemType);						\
}										\
										\
__TK_ARRAY_UNUSED								\
static int									\
AT##_IsEmpty(const AT *arr)							\
{										\
    assert(!arr || arr->size != 0xdeadbeef);					\
    return !arr || arr->size == 0u;						\
}										\
										\
__TK_ARRAY_UNUSED								\
static size_t									\
AT##_Size(const AT *arr)							\
{										\
    assert(!arr || arr->size != 0xdeadbeef);					\
    return arr ? arr->size : 0u;						\
}										\
										\
__TK_ARRAY_UNUSED								\
static size_t									\
AT##_Capacity(const AT *arr)							\
{										\
    assert(!arr || arr->size != 0xdeadbeef);					\
    return arr ? arr->capacity : 0u;						\
}										\
										\
__TK_ARRAY_UNUSED								\
static ElemType *								\
AT##_First(AT *arr)								\
{										\
    assert(!arr || arr->size != 0xdeadbeef);					\
    return arr ? arr->buf : NULL;						\
}										\
										\
__TK_ARRAY_UNUSED								\
static ElemType *								\
AT##_Last(AT *arr)								\
{										\
    assert(!arr || arr->size != 0xdeadbeef);					\
    return arr ? arr->buf + arr->size : NULL;					\
}										\
										\
__TK_ARRAY_UNUSED								\
static ElemType *								\
AT##_Front(AT *arr)								\
{										\
    assert(arr);								\
    assert(arr->size != 0xdeadbeef);						\
    assert(!AT##_IsEmpty(arr));							\
    return &arr->buf[0];							\
}										\
										\
__TK_ARRAY_UNUSED								\
static ElemType *								\
AT##_Back(AT *arr)								\
{										\
    assert(arr);								\
    assert(arr->size != 0xdeadbeef);						\
    assert(!AT##_IsEmpty(arr));							\
    return &arr->buf[arr->size - 1];						\
}										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_Resize(AT **arrp, size_t newSize)						\
{										\
    assert(arrp);								\
    assert(!*arrp || (*arrp)->size != 0xdeadbeef);				\
    if (newSize == 0) {								\
	assert(!*arrp || ((*arrp)->size = 0xdeadbeef));				\
	ckfree(*arrp);								\
	*arrp = NULL;								\
    } else {									\
	int init = *arrp == NULL;						\
	size_t memSize = AT##_BufferSize(newSize - 1) + sizeof(AT);		\
	*arrp = ckrealloc(*arrp, memSize);					\
	if (init) {								\
	    (*arrp)->size = 0;							\
	} else if (newSize < (*arrp)->size) {					\
	    (*arrp)->size = newSize;						\
	}									\
	(*arrp)->capacity = newSize;						\
    }										\
}										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_Clear(AT *arr, size_t from, size_t to)					\
{										\
    assert(arr);								\
    assert(arr->size != 0xdeadbeef);						\
    assert(to <= AT##_Capacity(arr));						\
    assert(from <= to);								\
    memset(arr->buf + from, 0, AT##_BufferSize(to - from));			\
}										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_ResizeAndClear(AT **arrp, size_t newSize)					\
{										\
    size_t oldCapacity;								\
    assert(arrp);								\
    oldCapacity = *arrp ? (*arrp)->capacity : 0;				\
    AT##_Resize(arrp, newSize);							\
    if (newSize > oldCapacity) {						\
	AT##_Clear(*arrp, oldCapacity, newSize);				\
    }										\
}										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_SetSize(AT *arr, size_t newSize)						\
{										\
    assert(newSize <= AT##_Capacity(arr));					\
    assert(!arr || arr->size != 0xdeadbeef);					\
    if (arr) {									\
	arr->size = newSize;							\
    }										\
}										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_Append(AT **arrp, ElemType *elem)						\
{										\
    assert(arrp);								\
    if (!*arrp) {								\
	AT##_Resize(arrp, 1);							\
    } else if ((*arrp)->size == (*arrp)->capacity) {				\
	AT##_Resize(arrp, (*arrp)->capacity + ((*arrp)->capacity + 1)/2);	\
    }										\
    (*arrp)->buf[(*arrp)->size++] = *elem;					\
}										\
										\
__TK_ARRAY_UNUSED								\
static size_t									\
AT##_PopBack(AT *arr)								\
{										\
    assert(!AT##_IsEmpty(arr));							\
    return arr->size -= 1;							\
}										\
										\
__TK_ARRAY_UNUSED								\
static ElemType *								\
AT##_Get(const AT *arr, size_t at)						\
{										\
    assert(arr);								\
    assert(at < AT##_Size(arr));						\
    return (ElemType *) &arr->buf[at];						\
}										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_Set(AT *arr, size_t at, ElemType *elem)					\
{										\
    assert(arr);								\
    assert(at < AT##_Size(arr));						\
    arr->buf[at] = *elem;							\
}										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_Free(AT **arrp)								\
{										\
    AT##_Resize(arrp, 0);							\
}										\
										\
__TK_ARRAY_UNUSED								\
static int									\
AT##_Find(const AT *arr, const ElemType *elem)					\
{										\
    assert(!arr || arr->size != 0xdeadbeef);					\
    if (arr) {									\
	const ElemType *buf = arr->buf;						\
	size_t i;								\
	for (i = 0; i < arr->size; ++i) {					\
	    if (memcmp(&buf[i], elem, sizeof(ElemType)) == 0) {			\
		return (int) i;							\
	    }									\
	}									\
    }										\
    return -1;									\
}										\
										\
__TK_ARRAY_UNUSED								\
static int									\
AT##_Contains(const AT *arr, const ElemType *elem)				\
{										\
    return AT##_Find(arr, elem) != -1;						\
}										\
/* ------------------------------------------------------------------------- */
 
#define TK_PTR_ARRAY_DEFINE(AT, ElemType) /* AT = type of array */		\
/* ------------------------------------------------------------------------- */	\
typedef struct AT {								\
    size_t size;								\
    size_t capacity;								\
    ElemType *buf[1];								\
} AT;										\
										\
__TK_ARRAY_UNUSED								\
static size_t									\
AT##_ElemSize()									\
{										\
    return sizeof(ElemType);							\
}										\
										\
__TK_ARRAY_UNUSED								\
static size_t									\
AT##_BufferSize(size_t numElems)						\
{										\
    return numElems*sizeof(ElemType *);						\
}										\
										\
__TK_ARRAY_UNUSED								\
static int									\
AT##_IsEmpty(const AT *arr)							\
{										\
    assert(!arr || arr->size != 0xdeadbeef);					\
    return !arr || arr->size == 0;						\
}										\
										\
__TK_ARRAY_UNUSED								\
static ElemType **								\
AT##_First(AT *arr)								\
{										\
    assert(!arr || arr->size != 0xdeadbeef);					\
    return arr ? arr->buf : NULL;						\
}										\
										\
__TK_ARRAY_UNUSED								\
static ElemType **								\
AT##_Last(AT *arr)								\
{										\
    assert(!arr || arr->size != 0xdeadbeef);					\
    return arr ? arr->buf + arr->size : NULL;					\
}										\
										\
__TK_ARRAY_UNUSED								\
static ElemType *								\
AT##_Front(AT *arr)								\
{										\
    assert(arr);								\
    assert(arr->size != 0xdeadbeef);						\
    assert(!AT##_IsEmpty(arr));							\
    return arr->buf[0];								\
}										\
										\
__TK_ARRAY_UNUSED								\
static ElemType *								\
AT##_Back(AT *arr)								\
{										\
    assert(arr);								\
    assert(arr->size != 0xdeadbeef);						\
    assert(!AT##_IsEmpty(arr));							\
    return arr->buf[arr->size - 1];						\
}										\
										\
__TK_ARRAY_UNUSED								\
static size_t									\
AT##_Size(const AT *arr)							\
{										\
    assert(!arr || arr->size != 0xdeadbeef);					\
    return arr ? arr->size : 0;							\
}										\
										\
__TK_ARRAY_UNUSED								\
static size_t									\
AT##_Capacity(const AT *arr)							\
{										\
    assert(!arr || arr->size != 0xdeadbeef);					\
    return arr ? arr->capacity : 0;						\
}										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_Resize(AT **arrp, size_t newCapacity)					\
{										\
    assert(arrp);								\
    assert(!*arrp || (*arrp)->size != 0xdeadbeef);				\
    if (newCapacity == 0) {							\
	assert(!*arrp || ((*arrp)->size = 0xdeadbeef));				\
	ckfree(*arrp);								\
	*arrp = NULL;								\
    } else {									\
	int init = *arrp == NULL;						\
	size_t memSize = AT##_BufferSize(newCapacity - 1) + sizeof(AT);		\
	*arrp = ckrealloc(*arrp, memSize);					\
	if (init) {								\
	    (*arrp)->size = 0;							\
	} else if (newCapacity < (*arrp)->size) {				\
	    (*arrp)->size = newCapacity;					\
	}									\
	(*arrp)->capacity = newCapacity;					\
    }										\
}										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_Clear(AT *arr, size_t from, size_t to)					\
{										\
    assert(arr);								\
    assert(arr->size != 0xdeadbeef);						\
    assert(to <= AT##_Capacity(arr));						\
    assert(from <= to);								\
    memset(arr->buf + from, 0, AT##_BufferSize(to - from));			\
}										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_ResizeAndClear(AT **arrp, size_t newCapacity)				\
{										\
    size_t oldCapacity;								\
    assert(arrp);								\
    oldCapacity = *arrp ? (*arrp)->capacity : 0;				\
    AT##_Resize(arrp, newCapacity);						\
    if (newCapacity > oldCapacity) {						\
	AT##_Clear(*arrp, oldCapacity, newCapacity);				\
    }										\
}										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_SetSize(AT *arr, size_t newSize)						\
{										\
    assert(arr);								\
    assert(newSize <= AT##_Capacity(arr));					\
    arr->size = newSize;							\
}										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_Append(AT **arrp, ElemType *elem)						\
{										\
    assert(arrp);								\
    if (!*arrp) {								\
	AT##_Resize(arrp, 1);							\
    } else if ((*arrp)->size == (*arrp)->capacity) {				\
	AT##_Resize(arrp, (*arrp)->capacity + ((*arrp)->capacity + 1)/2);	\
    }										\
    (*arrp)->buf[(*arrp)->size++] = elem;					\
}										\
										\
__TK_ARRAY_UNUSED								\
static size_t									\
AT##_PopBack(AT *arr)								\
{										\
    assert(!AT##_IsEmpty(arr));							\
    return arr->size -= 1;							\
}										\
										\
__TK_ARRAY_UNUSED								\
static ElemType *								\
AT##_Get(const AT *arr, size_t at)						\
{										\
    assert(arr);								\
    assert(at < AT##_Size(arr));						\
    return arr->buf[at];							\
}										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_Set(AT *arr, size_t at, ElemType *elem)					\
{										\
    assert(arr);								\
    assert(at < AT##_Size(arr));						\
    arr->buf[at] = elem;							\
}										\
										\
__TK_ARRAY_UNUSED								\
static void									\
AT##_Free(AT **arrp)								\
{										\
    AT##_Resize(arrp, 0);							\
}										\
										\
__TK_ARRAY_UNUSED								\
static int									\
AT##_Find(const AT *arr, const ElemType *elem)					\
{										\
    assert(!arr || arr->size != 0xdeadbeef);					\
    if (arr) {									\
	ElemType *const *buf = arr->buf;					\
	size_t i;								\
	for (i = 0; i < arr->size; ++i) {					\
	    if (buf[i] == elem) {						\
		return (int) i;							\
	    }									\
	}									\
    }										\
    return -1;									\
}										\
										\
__TK_ARRAY_UNUSED								\
static int									\
AT##_Contains(const AT *arr, const ElemType *elem)				\
{										\
    return AT##_Find(arr, elem) != -1;						\
}										\
/* ------------------------------------------------------------------------- */
 
#endif /* TK_ARRAY_DEFINED */
 
/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 105
 * End:
 * vi:set ts=8 sw=4:
 */

Added jni/sdl2tk/generic/tkDList.h.





































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
/*
 * tkDList.h --
 *
 * A list is headed by pointers to first and last element. The elements
 * are doubly linked so that an arbitrary element can be removed without
 * a need to traverse the list. New elements can be added to the list
 * before or after an existing element or at the head/tail of the list.
 * A list may be traversed in the forward or backward direction.
 *
 * Copyright (c) 2018 by Gregor Cramer.
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

/*
 * Note that this file will not be included in header files, it is the purpose
 * of this file to be included in source files only. Thus we are not using the
 * prefix "Tk_" here for functions, because all the functions have private scope.
 */
 
/*
 * -------------------------------------------------------------------------------
 * Use the double linked list in the following way:
 * -------------------------------------------------------------------------------
 * typedef struct MyListEntry { TK_DLIST_LINKS(MyListEntry); int value; } MyListEntry;
 * TK_DLIST_DEFINE(MyList, MyListEntry);
 * MyList listHdr = TK_DLIST_LIST_INITIALIZER; // or MyList_Init(&listHdr)
 * MyListEntry *p;
 * int i = 0;
 * MyList_Append(&listHdr, ckalloc(sizeof(MyListEntry)));
 * MyList_Append(&listHdr, ckalloc(sizeof(MyListEntry)));
 * TK_DLIST_FOREACH(p, &listHdr) { p->value = i++; }
 * // ...
 * MyList_RemoveHead(&listHdr);
 * MyList_RemoveHead(&listHdr);
 * MyList_Clear(MyListEntry, &listHdr); // invokes ckfree() for each element
 * -------------------------------------------------------------------------------
 * IMPORTANT NOTE: TK_DLIST_LINKS must be used at start of struct!
 */
 
#ifndef TK_DLIST_DEFINED
#define TK_DLIST_DEFINED

#include "tkInt.h"

/*
 * List definitions.
 */

#define TK_DLIST_LINKS(ElemType)						\
struct {									\
    struct ElemType *prev;	/* previous element */				\
    struct ElemType *next;	/* next element */				\
} _dl_

#define TK_DLIST_LIST_INITIALIZER { NULL, NULL }
#define TK_DLIST_ELEM_INITIALIZER { NULL, NULL }

/*************************************************************************/
/*
 * DList_Init: Initialize list header. This can also be used to clear the
 * list.
 *
 * See also: DList_Clear()
 */
/*************************************************************************/
/*
 * DList_ElemInit: Initialize a list element.
 */
/*************************************************************************/
/*
 * DList_InsertAfter: Insert 'elem' after 'listElem'. 'elem' must not
 * be linked, but 'listElem' must be linked.
 */
/*************************************************************************/
/*
 * DList_InsertBefore: Insert 'elem' before 'listElem'. 'elem' must not
 * be linked, but 'listElem' must be linked.
 */
/*************************************************************************/
/*
 * DList_Prepend: Insert 'elem' at start of list. This element must not
 * be linked.
 *
 * See also: DList_Append()
 */
/*************************************************************************/
/*
 * DList_Append: Append 'elem' to end of list. This element must not
 * be linked.
 *
 * See also: DList_Prepend()
 */
/*************************************************************************/
/*
 * DList_Move: Append all list items of 'src' to end of 'dst'.
 */
/*************************************************************************/
/*
 * DList_Remove: Remove 'elem' from list. This element must be linked.
 *
 * See also: DList_Free()
 */
/*************************************************************************/
/*
 * DList_Free: Remove 'elem' from list and free it. This element must
 * be linked.
 *
 * See also: DList_Remove()
 */
/*************************************************************************/
/*
 * DList_RemoveHead: Remove first element from list. The list must
 * not be empty.
 *
 * See also: DList_FreeHead()
 */
/*************************************************************************/
/*
 * DList_RemoveTail: Remove last element from list. The list must
 * not be empty.
 *
 * See also: DList_FreeTail()
 */
/*************************************************************************/
/*
 * DList_FreeHead: Remove first element from list and free it.
 * The list must not be empty.
 *
 * See also: DList_RemoveHead()
 */
/*************************************************************************/
/*
 * DList_FreeTail: Remove last element from list and free it.
 * The list must not be empty.
 *
 * See also: DList_RemoveTail()
 */
/*************************************************************************/
/*
 * DList_SwapElems: Swap positions of given elements 'lhs' and 'rhs'.
 * Both elements must be linked, and must belong to same list.
 */
/*************************************************************************/
/*
 * DList_Clear: Clear whole list and free all elements.
 *
 * See also: DList_Init
 */
/*************************************************************************/
/*
 * DList_Traverse: Iterate over all elements in list from first to last.
 * Call given function func(head, elem) for each element. The function has
 * to return the next element in list to traverse, normally this is
 * DList_Next(elem).
 *
 * See also: TK_DLIST_FOREACH, TK_DLIST_FOREACH_REVERSE
 */
/*************************************************************************/
/*
 * DList_First: Return pointer of first element in list, maybe it's NULL.
 */
/*************************************************************************/
/*
 * DList_Last: Return pointer of last element in list, maybe it's NULL.
 */
/*************************************************************************/
/*
 * DList_Next: Return pointer of next element after 'elem', maybe it's NULL.
 *
 * See also: DList_Prev()
 */
/*************************************************************************/
/*
 * DList_Prev: Return pointer of previous element before 'elem', maybe it's
 * NULL.
 *
 * See also: DList_Next()
 */
/*************************************************************************/
/*
 * DList_IsEmpty: Test whether given list is empty.
 */
/*************************************************************************/
/*
 * DList_IsLinked: Test whether given element is linked.
 */
/*************************************************************************/
/*
 * DList_IsFirst: Test whether given element is first element in list.
 * Note that 'elem' must be linked.
 *
 * See also: DList_IsLast(), DList_IsLinked()
 */
/*************************************************************************/
/*
 * DList_IsLast: Test whether given element is last element in list.
 * Note that 'elem' must be linked.
 *
 * See also: DList_IsFirst(), DList_IsLinked()
 */
/*************************************************************************/
/*
 * DList_Size: Count number of elements in given list.
 */
/*************************************************************************/
/*
 * TK_DLIST_FOREACH: Iterate over all elements in list from first to last.
 * 'var' is the name of the variable which points to current element.
 *
 * See also: TK_DLIST_FOREACH_REVERSE, DList_Traverse()
 */
/*************************************************************************/
/*
 * TK_DLIST_FOREACH_REVERSE: Iterate over all elements in list from last
 * to first (backwards). 'var' is the name of the variable which points to
 * current element.
 */
/*************************************************************************/
 
#if defined(__GNUC__) || defined(__clang__)
# define __TK_DLIST_UNUSED __attribute__((unused))
#else
# define __TK_DLIST_UNUSED
#endif

#define TK_DLIST_DEFINE(LT, ElemType) /* LT = type of head/list */		\
/* ------------------------------------------------------------------------- */	\
typedef struct LT {								\
    struct ElemType *first;	/* first element */				\
    struct ElemType *last;	/* last element */				\
} LT;										\
										\
typedef struct ElemType *(LT##_Func)(LT *head, struct ElemType *elem);		\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_Init(LT *head)								\
{										\
    assert(head);								\
    head->first = NULL;								\
    head->last = NULL;								\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_ElemInit(struct ElemType *elem)						\
{										\
    assert(elem);								\
    elem->_dl_.next = NULL;							\
    elem->_dl_.prev = NULL;							\
}										\
										\
__TK_DLIST_UNUSED								\
static int									\
LT##_IsEmpty(LT *head)								\
{										\
    assert(head);								\
    return head->first == NULL;							\
}										\
										\
__TK_DLIST_UNUSED								\
static int									\
LT##_IsLinked(struct ElemType *elem)						\
{										\
    assert(elem);								\
    return elem->_dl_.next && elem->_dl_.prev;					\
}										\
										\
__TK_DLIST_UNUSED								\
static int									\
LT##_IsFirst(struct ElemType *elem)						\
{										\
    assert(LT##_IsLinked(elem));						\
    return elem->_dl_.prev->_dl_.prev == elem;					\
}										\
										\
__TK_DLIST_UNUSED								\
static int									\
LT##_IsLast(struct ElemType *elem)						\
{										\
    assert(LT##_IsLinked(elem));						\
    return elem->_dl_.next->_dl_.next == elem;					\
}										\
										\
__TK_DLIST_UNUSED								\
static struct ElemType *							\
LT##_First(LT *head)								\
{										\
    assert(head);								\
    return head->first;								\
}										\
										\
__TK_DLIST_UNUSED								\
static struct ElemType *							\
LT##_Last(LT *head)								\
{										\
    assert(head);								\
    return head->last;								\
}										\
										\
__TK_DLIST_UNUSED								\
static struct ElemType *							\
LT##_Next(struct ElemType *elem)						\
{										\
    assert(elem);								\
    return LT##_IsLast(elem) ? NULL : elem->_dl_.next;				\
}										\
										\
__TK_DLIST_UNUSED								\
static struct ElemType *							\
LT##_Prev(struct ElemType *elem)						\
{										\
    assert(elem);								\
    return LT##_IsFirst(elem) ? NULL : elem->_dl_.prev;				\
}										\
										\
__TK_DLIST_UNUSED								\
static unsigned									\
LT##_Size(const LT *head)							\
{										\
    const struct ElemType *elem;						\
    unsigned size = 0;								\
    assert(head);								\
    if ((elem = head->first)) {							\
	for ( ; elem != (void *) head; elem = elem->_dl_.next) {		\
	    ++size;								\
	}									\
    }										\
    return size;								\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_InsertAfter(struct ElemType *listElem, struct ElemType *elem)		\
{										\
    assert(listElem);								\
    assert(elem);								\
    elem->_dl_.next = listElem->_dl_.next;					\
    elem->_dl_.prev = listElem;							\
    listElem->_dl_.next->_dl_.prev = elem;					\
    listElem->_dl_.next = elem;							\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_InsertBefore(struct ElemType *listElem, struct ElemType *elem)		\
{										\
    assert(listElem);								\
    assert(elem);								\
    elem->_dl_.next = listElem;							\
    elem->_dl_.prev = listElem->_dl_.prev;;					\
    listElem->_dl_.prev->_dl_.next = elem;					\
    listElem->_dl_.prev = elem;							\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_Prepend(LT *head, struct ElemType *elem)					\
{										\
    assert(head);								\
    assert(elem);								\
    elem->_dl_.prev = (void *) head;						\
    if (!head->first) {								\
	elem->_dl_.next = (void *) head;					\
	head->last = elem;							\
    } else {									\
	elem->_dl_.next = head->first;						\
	head->first->_dl_.prev = elem;						\
    }										\
    head->first = elem;								\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_Append(LT *head, struct ElemType *elem)					\
{										\
    assert(head);								\
    assert(elem);								\
    elem->_dl_.next = (void *) head;						\
    if (!head->first) {								\
	elem->_dl_.prev = (void *) head;					\
	head->first = elem;							\
    } else {									\
	elem->_dl_.prev = head->last;						\
	head->last->_dl_.next = elem;						\
    }										\
    head->last = elem;								\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_Move(LT *dst, LT *src)							\
{										\
    assert(dst);								\
    assert(src);								\
    if (src->first) {								\
	if (dst->first) {							\
	    dst->last->_dl_.next = src->first;					\
	    src->first->_dl_.prev = dst->last;					\
	    dst->last = src->last;						\
	} else {								\
	    *dst = *src;							\
	    dst->first->_dl_.prev = (void *) dst;				\
	}									\
	dst->last->_dl_.next = (void *) dst;					\
	LT##_Init(src);								\
    }										\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_Remove(struct ElemType *elem)						\
{										\
    int isFirst, isLast;							\
    assert(LT##_IsLinked(elem));						\
    isFirst = LT##_IsFirst(elem);						\
    isLast = LT##_IsLast(elem);							\
    if (isFirst && isLast) {							\
	((LT *) elem->_dl_.prev)->first = NULL;					\
	((LT *) elem->_dl_.next)->last = NULL;					\
    } else {									\
	if (isFirst) {								\
	    ((LT *) elem->_dl_.prev)->first = elem->_dl_.next;			\
	} else {								\
	    elem->_dl_.prev->_dl_.next = elem->_dl_.next;			\
	}									\
	if (isLast) {								\
	    ((LT *) elem->_dl_.next)->last = elem->_dl_.prev;			\
	} else {								\
	    elem->_dl_.next->_dl_.prev = elem->_dl_.prev;			\
	}									\
    }										\
    LT##_ElemInit(elem);							\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_Free(struct ElemType *elem)						\
{										\
    LT##_Remove(elem);								\
    ckfree((void *) elem);							\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_RemoveHead(LT *head)							\
{										\
    assert(!LT##_IsEmpty(head));						\
    LT##_Remove(head->first);							\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_RemoveTail(LT *head)							\
{										\
    assert(!LT##_IsEmpty(head));						\
    LT##_Remove(head->last);							\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_FreeHead(LT *head)								\
{										\
    assert(!LT##_IsEmpty(head));						\
    LT##_Free(head->first);							\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_FreeTail(LT *head)								\
{										\
    assert(!LT##_IsEmpty(head));						\
    LT##_Free(head->last);							\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_SwapElems(struct ElemType *lhs, struct ElemType *rhs)			\
{										\
    assert(lhs);								\
    assert(rhs);								\
    if (lhs != rhs) {								\
	struct ElemType tmp;							\
	if (LT##_IsFirst(lhs))  {						\
	    ((LT *) lhs->_dl_.prev)->first = rhs;				\
	} else if (LT##_IsFirst(rhs)) {						\
	    ((LT *) rhs->_dl_.prev)->first = lhs;				\
	}									\
	if (LT##_IsLast(lhs))  {						\
	    ((LT *) lhs->_dl_.next)->last = rhs;				\
	} else if (LT##_IsLast(rhs)) {						\
	    ((LT *) rhs->_dl_.next)->last = lhs;				\
	}									\
	tmp._dl_ = lhs->_dl_;							\
	lhs->_dl_ = rhs->_dl_;							\
	rhs->_dl_ = tmp._dl_;							\
    }										\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_Clear(LT *head)								\
{										\
    struct ElemType *p;								\
    struct ElemType *next;							\
    assert(head);								\
    for (p = head->first; p; p = next) {					\
	next = LT##_Next(p);							\
	ckfree((void *) p);							\
    }										\
    LT##_Init(head);								\
}										\
										\
__TK_DLIST_UNUSED								\
static void									\
LT##_Traverse(LT *head, LT##_Func func)						\
{										\
    struct ElemType *next;							\
    struct ElemType *p;								\
    assert(head);								\
    for (p = head->first; p; p = next) {					\
	next = func(head, p);							\
    }										\
}										\
/* ------------------------------------------------------------------------- */

#define TK_DLIST_FOREACH(var, head)						\
    assert(head);								\
    for (var = head->first ? head->first : (void *) head; var != (void *) head; var = var->_dl_.next)

#define TK_DLIST_FOREACH_REVERSE(var, head)					\
    assert(head);								\
    for (var = head->last ? head->last : (void *) head; var != (void *) head; var = var->_dl_.prev)
 
#endif /* TK_DLIST_DEFINED */
 
/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 105
 * End:
 * vi:set ts=8 sw=4:
 */