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49 | * index: 0 I1 I2 I3 In |
49 | * index: 0 I1 I2 I3 In |
50 | * value: 0...0, A1...A1, A2...A2, A3...A3, ..., An...An |
50 | * value: 0...0, A1...A1, A2...A2, A3...A3, ..., An...An |
51 | * where |
51 | * where |
52 | * A1 = 0; |
52 | * A1 = 0; |
53 | * Ai+1 = N1 + N2 + ... + Ni. |
53 | * Ai+1 = N1 + N2 + ... + Ni. |
54 | * it is computed from hash_budget_size[]: |
54 | * it is computed from hash_bucket_size[]: |
55 | * index: 0 I1 I2 I3 In |
55 | * index: 0 I1 I2 I3 In |
56 | * value: 0...0, N1, 0...0, N2, 0...0, N3, ..., Nn, 0...0 |
56 | * value: 0...0, N1, 0...0, N2, 0...0, N3, ..., Nn, 0...0 |
57 | * 0...0, 0.......0, N1.....N1, N1+N2...N1+N2, ... (the compution of hash[]) |
57 | * 0...0, 0.......0, N1.....N1, N1+N2...N1+N2, ... (the computation of hash[]) |
58 | * or we can say |
58 | * or we can say |
59 | * hash_budget_size[Ii] = Ni; hash_budget_size[elsewhere] = 0, |
59 | * hash_bucket_size[Ii] = Ni; hash_bucket_size[elsewhere] = 0, |
60 | * where |
60 | * where |
61 | * set {I1, I2, ..., In} = { hashkey of keymap[0]->keysym, ..., keymap[keymap.size-1]->keysym } |
61 | * set {I1, I2, ..., In} = { hashkey of keymap[0]->keysym, ..., keymap[keymap.size-1]->keysym } |
62 | * where hashkey of keymap[i]->keysym = keymap[i]->keysym & KEYSYM_HASH_MASK |
62 | * where hashkey of keymap[i]->keysym = keymap[i]->keysym & KEYSYM_HASH_MASK |
63 | * n(the number of groups) = the number of non-zero member of hash_budget_size[]; |
63 | * n(the number of groups) = the number of non-zero member of hash_bucket_size[]; |
64 | * Ni(the size of group i) = hash_budget_size[Ii]. |
64 | * Ni(the size of group i) = hash_bucket_size[Ii]. |
65 | */ |
65 | */ |
66 | |
66 | |
67 | #if STOCK_KEYMAP |
67 | #if STOCK_KEYMAP |
68 | //////////////////////////////////////////////////////////////////////////////// |
68 | //////////////////////////////////////////////////////////////////////////////// |
69 | // default keycode translation map and keyevent handlers |
69 | // default keycode translation map and keyevent handlers |
70 | |
70 | |
71 | keysym_t keyboard_manager::stock_keymap[] = { |
71 | keysym_t keyboard_manager::stock_keymap[] = { |
72 | /* examples */ |
72 | /* examples */ |
73 | /* keysym, state, range, handler, str */ |
73 | /* keysym, state, range, type, str */ |
74 | //{XK_ISO_Left_Tab, 0, 1, keysym_t::STRING, "\033[Z"}, |
74 | //{XK_ISO_Left_Tab, 0, 1, keysym_t::STRING, "\033[Z"}, |
75 | //{ 'a', 0, 26, keysym_t::RANGE_META8, "a" "%c"}, |
75 | //{ 'a', 0, 26, keysym_t::RANGE_META8, "a" "%c"}, |
76 | //{ 'a', ControlMask, 26, keysym_t::RANGE_META8, "" "%c"}, |
76 | //{ 'a', ControlMask, 26, keysym_t::RANGE_META8, "" "%c"}, |
77 | //{ XK_Left, 0, 4, keysym_t::LIST, ".\033[.DACB."}, |
77 | //{ XK_Left, 0, 4, keysym_t::LIST, ".\033[.DACB."}, |
78 | //{ XK_Left, ShiftMask, 4, keysym_t::LIST, ".\033[.dacb."}, |
78 | //{ XK_Left, ShiftMask, 4, keysym_t::LIST, ".\033[.dacb."}, |
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138 | } |
138 | } |
139 | |
139 | |
140 | return len; |
140 | return len; |
141 | } |
141 | } |
142 | |
142 | |
143 | //////////////////////////////////////////////////////////////////////////////// |
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144 | // return: #bits of '1' |
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145 | #if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 3) |
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146 | # define bitcount(n) (__extension__ ({ uint32_t n__ = (n); __builtin_popcount (n__); })) |
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147 | #else |
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148 | static int |
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149 | bitcount (uint16_t n) |
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150 | { |
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151 | int i; |
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152 | |
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153 | for (i = 0; n; ++i, n &= n - 1) |
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154 | ; |
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155 | |
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156 | return i; |
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157 | } |
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158 | #endif |
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159 | |
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160 | // return: priority_of_a - priority_of_b |
143 | // return: priority_of_a - priority_of_b |
161 | static int |
144 | static int |
162 | compare_priority (keysym_t *a, keysym_t *b) |
145 | compare_priority (keysym_t *a, keysym_t *b) |
163 | { |
146 | { |
164 | // (the more '1's in state; the less range): the greater priority |
147 | // (the more '1's in state; the less range): the greater priority |
165 | int ca = bitcount (a->state /* & OtherModMask */); |
148 | int ca = rxvt_popcount (a->state /* & OtherModMask */); |
166 | int cb = bitcount (b->state /* & OtherModMask */); |
149 | int cb = rxvt_popcount (b->state /* & OtherModMask */); |
167 | |
150 | |
168 | if (ca != cb) |
151 | if (ca != cb) |
169 | return ca - cb; |
152 | return ca - cb; |
170 | //else if (a->state != b->state) // this behavior is to be disscussed |
153 | //else if (a->state != b->state) // this behavior is to be discussed |
171 | // return b->state - a->state; |
154 | // return b->state - a->state; |
172 | else |
155 | else |
173 | return b->range - a->range; |
156 | return b->range - a->range; |
174 | } |
157 | } |
175 | |
158 | |
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230 | |
213 | |
231 | if (strncmp (translation, "list", 4) == 0 && translation [4]) |
214 | if (strncmp (translation, "list", 4) == 0 && translation [4]) |
232 | { |
215 | { |
233 | char *middle = strchr (translation + 5, translation [4]); |
216 | char *middle = strchr (translation + 5, translation [4]); |
234 | char *suffix = strrchr (translation + 5, translation [4]); |
217 | char *suffix = strrchr (translation + 5, translation [4]); |
235 | |
218 | |
236 | if (suffix && middle && suffix > middle + 1) |
219 | if (suffix && middle && suffix > middle + 1) |
237 | { |
220 | { |
238 | key->type = keysym_t::LIST; |
221 | key->type = keysym_t::LIST; |
239 | key->range = suffix - middle - 1; |
222 | key->range = suffix - middle - 1; |
240 | |
223 | |
241 | strcpy (translation, translation + 4); |
224 | memmove (translation, translation + 4, strlen (translation + 4) + 1); |
242 | } |
225 | } |
243 | else |
226 | else |
244 | rxvt_warn ("cannot parse list-type keysym '%s', treating as normal keysym.\n", translation); |
227 | rxvt_warn ("cannot parse list-type keysym '%s', treating as normal keysym.\n", translation); |
245 | } |
228 | } |
246 | else if (strncmp (translation, "builtin:", 8) == 0) |
229 | else if (strncmp (translation, "builtin:", 8) == 0) |
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395 | void |
378 | void |
396 | keyboard_manager::setup_hash () |
379 | keyboard_manager::setup_hash () |
397 | { |
380 | { |
398 | unsigned int i, index, hashkey; |
381 | unsigned int i, index, hashkey; |
399 | vector <keysym_t *> sorted_keymap; |
382 | vector <keysym_t *> sorted_keymap; |
400 | uint16_t hash_budget_size[KEYSYM_HASH_BUDGETS]; // size of each budget |
383 | uint16_t hash_bucket_size[KEYSYM_HASH_BUCKETS]; // size of each bucket |
401 | uint16_t hash_budget_counter[KEYSYM_HASH_BUDGETS]; // #elements in each budget |
384 | uint16_t hash_bucket_counter[KEYSYM_HASH_BUCKETS]; // #elements in each bucket |
402 | |
385 | |
403 | memset (hash_budget_size, 0, sizeof (hash_budget_size)); |
386 | memset (hash_bucket_size, 0, sizeof (hash_bucket_size)); |
404 | memset (hash_budget_counter, 0, sizeof (hash_budget_counter)); |
387 | memset (hash_bucket_counter, 0, sizeof (hash_bucket_counter)); |
405 | |
388 | |
406 | // determine hash bucket size |
389 | // determine hash bucket size |
407 | for (i = 0; i < keymap.size (); ++i) |
390 | for (i = 0; i < keymap.size (); ++i) |
408 | for (int j = min (keymap [i]->range, KEYSYM_HASH_BUDGETS) - 1; j >= 0; --j) |
391 | for (int j = min (keymap [i]->range, KEYSYM_HASH_BUCKETS) - 1; j >= 0; --j) |
409 | { |
392 | { |
410 | hashkey = (keymap [i]->keysym + j) & KEYSYM_HASH_MASK; |
393 | hashkey = (keymap [i]->keysym + j) & KEYSYM_HASH_MASK; |
411 | ++hash_budget_size [hashkey]; |
394 | ++hash_bucket_size [hashkey]; |
412 | } |
395 | } |
413 | |
396 | |
414 | // now we know the size of each budget |
397 | // now we know the size of each bucket |
415 | // compute the index of each budget |
398 | // compute the index of each bucket |
416 | hash [0] = 0; |
399 | hash [0] = 0; |
417 | for (index = 0, i = 1; i < KEYSYM_HASH_BUDGETS; ++i) |
400 | for (index = 0, i = 1; i < KEYSYM_HASH_BUCKETS; ++i) |
418 | { |
401 | { |
419 | index += hash_budget_size [i - 1]; |
402 | index += hash_bucket_size [i - 1]; |
420 | hash [i] = index; |
403 | hash [i] = index; |
421 | } |
404 | } |
422 | |
405 | |
423 | // and allocate just enough space |
406 | // and allocate just enough space |
424 | sorted_keymap.insert (sorted_keymap.begin (), index + hash_budget_size [i - 1], 0); |
407 | sorted_keymap.insert (sorted_keymap.begin (), index + hash_bucket_size [i - 1], 0); |
425 | |
408 | |
426 | // fill in sorted_keymap |
409 | // fill in sorted_keymap |
427 | // it is sorted in each budget |
410 | // it is sorted in each bucket |
428 | for (i = 0; i < keymap.size (); ++i) |
411 | for (i = 0; i < keymap.size (); ++i) |
429 | for (int j = min (keymap [i]->range, KEYSYM_HASH_BUDGETS) - 1; j >= 0; --j) |
412 | for (int j = min (keymap [i]->range, KEYSYM_HASH_BUCKETS) - 1; j >= 0; --j) |
430 | { |
413 | { |
431 | hashkey = (keymap [i]->keysym + j) & KEYSYM_HASH_MASK; |
414 | hashkey = (keymap [i]->keysym + j) & KEYSYM_HASH_MASK; |
432 | |
415 | |
433 | index = hash [hashkey] + hash_budget_counter [hashkey]; |
416 | index = hash [hashkey] + hash_bucket_counter [hashkey]; |
434 | |
417 | |
435 | while (index > hash [hashkey] |
418 | while (index > hash [hashkey] |
436 | && compare_priority (keymap [i], sorted_keymap [index - 1]) > 0) |
419 | && compare_priority (keymap [i], sorted_keymap [index - 1]) > 0) |
437 | { |
420 | { |
438 | sorted_keymap [index] = sorted_keymap [index - 1]; |
421 | sorted_keymap [index] = sorted_keymap [index - 1]; |
439 | --index; |
422 | --index; |
440 | } |
423 | } |
441 | |
424 | |
442 | sorted_keymap [index] = keymap [i]; |
425 | sorted_keymap [index] = keymap [i]; |
443 | ++hash_budget_counter [hashkey]; |
426 | ++hash_bucket_counter [hashkey]; |
444 | } |
427 | } |
445 | |
428 | |
446 | keymap.swap (sorted_keymap); |
429 | keymap.swap (sorted_keymap); |
447 | |
430 | |
448 | #ifdef DEBUG_STRICT |
431 | #ifndef NDEBUG |
449 | // check for invariants |
432 | // check for invariants |
450 | for (i = 0; i < KEYSYM_HASH_BUDGETS; ++i) |
433 | for (i = 0; i < KEYSYM_HASH_BUCKETS; ++i) |
451 | { |
434 | { |
452 | index = hash[i]; |
435 | index = hash[i]; |
453 | for (int j = 0; j < hash_budget_size [i]; ++j) |
436 | for (int j = 0; j < hash_bucket_size [i]; ++j) |
454 | { |
437 | { |
455 | if (keymap [index + j]->range == 1) |
438 | if (keymap [index + j]->range == 1) |
456 | assert (i == (keymap [index + j]->keysym & KEYSYM_HASH_MASK)); |
439 | assert (i == (keymap [index + j]->keysym & KEYSYM_HASH_MASK)); |
457 | |
440 | |
458 | if (j) |
441 | if (j) |
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469 | { |
452 | { |
470 | int index = find_keysym (a->keysym + j, a->state); |
453 | int index = find_keysym (a->keysym + j, a->state); |
471 | |
454 | |
472 | assert (index >= 0); |
455 | assert (index >= 0); |
473 | keysym_t *b = keymap [index]; |
456 | keysym_t *b = keymap [index]; |
474 | assert (i == (signed) index || // the normally expected result |
457 | assert (i == index // the normally expected result |
475 | (a->keysym + j) >= b->keysym && (a->keysym + j) <= (b->keysym + b->range) && compare_priority (a, b) <= 0); // is effectively the same or a closer match |
458 | || IN_RANGE_INC (a->keysym + j, b->keysym, b->keysym + b->range) |
|
|
459 | && compare_priority (a, b) <= 0); // is effectively the same or a closer match |
476 | } |
460 | } |
477 | } |
461 | } |
478 | #endif |
462 | #endif |
479 | } |
463 | } |
480 | |
464 | |
481 | int |
465 | int |
482 | keyboard_manager::find_keysym (KeySym keysym, unsigned int state) |
466 | keyboard_manager::find_keysym (KeySym keysym, unsigned int state) |
483 | { |
467 | { |
484 | int hashkey = keysym & KEYSYM_HASH_MASK; |
468 | int hashkey = keysym & KEYSYM_HASH_MASK; |
485 | unsigned int index = hash [hashkey]; |
469 | unsigned int index = hash [hashkey]; |
486 | unsigned int end = hashkey < KEYSYM_HASH_BUDGETS - 1 |
470 | unsigned int end = hashkey < KEYSYM_HASH_BUCKETS - 1 |
487 | ? hash [hashkey + 1] |
471 | ? hash [hashkey + 1] |
488 | : keymap.size (); |
472 | : keymap.size (); |
489 | |
473 | |
490 | for (; index < end; ++index) |
474 | for (; index < end; ++index) |
491 | { |
475 | { |
492 | keysym_t *key = keymap [index]; |
476 | keysym_t *key = keymap [index]; |