| changeset 15274 | 58d5c0f8d906 |
| parent 14382 | dcbff20f0a14 |
| child 15280 | 96826a417ba5 |
| 15273:79888b6f4b20 | 15274:58d5c0f8d906 |
|---|---|
160 %}. |
160 %}. |
161 ^ self basicNew:anInteger |
161 ^ self basicNew:anInteger |
162 ! ! |
162 ! ! |
163 |
163 |
164 |
164 |
165 |
|
166 |
|
167 |
|
165 !ByteArray class methodsFor:'queries'! |
168 !ByteArray class methodsFor:'queries'! |
166 |
169 |
167 elementByteSize |
170 elementByteSize |
168 ^ 1 |
171 ^ 1 |
169 |
172 |
176 |
179 |
177 ^ self == ByteArray |
180 ^ self == ByteArray |
178 |
181 |
179 "Modified: 23.4.1996 / 15:56:25 / cg" |
182 "Modified: 23.4.1996 / 15:56:25 / cg" |
180 ! ! |
183 ! ! |
184 |
|
185 |
|
181 |
186 |
182 !ByteArray methodsFor:'Compatibility-Squeak'! |
187 !ByteArray methodsFor:'Compatibility-Squeak'! |
183 |
188 |
184 bitXor:aByteArray |
189 bitXor:aByteArray |
185 "return a new byteArray containing the bitWise-xor of the receiver's and the |
190 "return a new byteArray containing the bitWise-xor of the receiver's and the |
2379 " |
2384 " |
2380 ! |
2385 ! |
2381 |
2386 |
2382 swapBytes |
2387 swapBytes |
2383 "swap bytes inplace - |
2388 "swap bytes inplace - |
2384 written as a primitive for speed on image grabbing (if display order is different)" |
2389 Expects that the receiver has an even number of bytes; |
2390 if not, only the pairs excluding the last byte are swapped. |
|
2391 written as a primitive for speed on image grabbing (if display order is different)." |
|
2385 |
2392 |
2386 %{ /* NOCONTEXT */ |
2393 %{ /* NOCONTEXT */ |
2387 |
2394 |
2388 REGISTER unsigned char *p; |
2395 REGISTER unsigned char *p; |
2389 REGISTER int cnt; |
2396 REGISTER int cnt; |
2390 REGISTER unsigned t; |
2397 REGISTER unsigned t; |
2391 |
2398 |
2392 if (__qClass(self) == @global(ByteArray)) { |
2399 if (__qClass(self) == @global(ByteArray)) { |
2393 cnt = __byteArraySize(self); |
2400 cnt = __byteArraySize(self); |
2394 cnt = cnt & ~1; /* make it even */ |
2401 cnt = cnt & ~1; /* make it even */ |
2395 p = __ByteArrayInstPtr(self)->ba_element; |
2402 p = __ByteArrayInstPtr(self)->ba_element; |
2396 while (cnt > 0) { |
2403 |
2397 #ifdef OLD |
2404 while (cnt >= sizeof(INT)) { |
2398 t = p[0]; |
2405 unsigned INT i = ((unsigned INT *)p)[0]; |
2399 p[0] = p[1]; |
2406 |
2400 p[1] = t; |
2407 #if __POINTER_SIZE__ == 8 |
2408 i = ((i>>8) & 0x00FF00FF00FF00FF) | ((i & 0x00FF00FF00FF00FF) << 8); |
|
2401 #else |
2409 #else |
2402 unsigned short s; |
2410 i = ((i>>8) & 0x00FF00FF) | ((i & 0x00FF00FF) << 8); |
2403 |
2411 #endif /* __POINTER_SIZE__ */ |
2404 s = ((unsigned short *)p)[0]; |
2412 ((unsigned INT *)p)[0] = i; |
2405 s = (s >> 8) | (s << 8); |
2413 p += sizeof(INT); |
2406 ((unsigned short *)p)[0] = s; |
2414 cnt -= sizeof(INT); |
2407 #endif |
2415 } |
2408 p += 2; |
2416 while (cnt > 0) { |
2409 cnt -= 2; |
2417 unsigned short s; |
2410 } |
2418 |
2411 RETURN ( self ); |
2419 s = ((unsigned short *)p)[0]; |
2420 s = (s >> 8) | (s << 8); |
|
2421 ((unsigned short *)p)[0] = s; |
|
2422 p += 2; |
|
2423 cnt -= 2; |
|
2424 } |
|
2425 RETURN ( self ); |
|
2412 } |
2426 } |
2413 %}. |
2427 %}. |
2414 ^ super swapBytes "/ rubbish - there is no one currenly |
2428 ^ super swapBytes "/ rubbish - there is no one currenly |
2415 |
2429 |
2416 " |
2430 " |
2417 #[1 2 3 4 5 6 7 8 9 10] copy swapBytes |
2431 #[1 2 3 4 5 6 7 8 9 10] copy swapBytes -> #[2 1 4 3 6 5 8 7 10 9] |
2418 #[1 2 3 4 5 6 7 8 9 10 11] copy swapBytes |
2432 #[1 2 3 4 5 6 7 8 9 10 11] copy swapBytes -> #[2 1 4 3 6 5 8 7 10 9 11] |
2433 #[1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18] copy swapBytes |
|
2419 " |
2434 " |
2420 ! |
2435 ! |
2421 |
2436 |
2422 swapIndex:i1 and:i2 |
2437 swapIndex:i1 and:i2 |
2423 "spap the bytes with i1 and i2" |
2438 "spap the bytes with i1 and i2" |
2905 |
2920 |
2906 " |
2921 " |
2907 #[1 2 3 1 2 3 1 2 3 1 2 3 4 5 6 4 5 6] usedValues |
2922 #[1 2 3 1 2 3 1 2 3 1 2 3 4 5 6 4 5 6] usedValues |
2908 " |
2923 " |
2909 ! ! |
2924 ! ! |
2925 |
|
2910 |
2926 |
2911 !ByteArray methodsFor:'searching'! |
2927 !ByteArray methodsFor:'searching'! |
2912 |
2928 |
2913 indexOf:aByte startingAt:start |
2929 indexOf:aByte startingAt:start |
2914 "return the index of the first occurrence of the argument, aByte |
2930 "return the index of the first occurrence of the argument, aByte |
2971 " |
2987 " |
2972 #[1 2 3 4 5 6 7 8 9 0 1 2 3 4 5] indexOf:0 startingAt:1 |
2988 #[1 2 3 4 5 6 7 8 9 0 1 2 3 4 5] indexOf:0 startingAt:1 |
2973 " |
2989 " |
2974 ! ! |
2990 ! ! |
2975 |
2991 |
2992 |
|
2976 !ByteArray methodsFor:'testing'! |
2993 !ByteArray methodsFor:'testing'! |
2977 |
2994 |
2978 isByteArray |
2995 isByteArray |
2979 "return true, if the receiver is some kind of bytearray; |
2996 "return true, if the receiver is some kind of bytearray; |
2980 true is returned here - the method is redefined from Object." |
2997 true is returned here - the method is redefined from Object." |
2998 ! ! |
3015 ! ! |
2999 |
3016 |
3000 !ByteArray class methodsFor:'documentation'! |
3017 !ByteArray class methodsFor:'documentation'! |
3001 |
3018 |
3002 version |
3019 version |
3003 ^ '$Header: /cvs/stx/stx/libbasic/ByteArray.st,v 1.208 2012-10-10 17:00:30 cg Exp $' |
3020 ^ '$Header: /cvs/stx/stx/libbasic/ByteArray.st,v 1.209 2013-05-27 08:10:49 cg Exp $' |
3004 ! |
3021 ! |
3005 |
3022 |
3006 version_CVS |
3023 version_CVS |
3007 ^ '$Header: /cvs/stx/stx/libbasic/ByteArray.st,v 1.208 2012-10-10 17:00:30 cg Exp $' |
3024 ^ '$Header: /cvs/stx/stx/libbasic/ByteArray.st,v 1.209 2013-05-27 08:10:49 cg Exp $' |
3008 ! ! |
3025 ! ! |
3026 |