| … | |
… | |
| 251 | av = (AV *) SvRV (ar); |
251 | av = (AV *) SvRV (ar); |
| 252 | result = newAV (); |
252 | result = newAV (); |
| 253 | |
253 | |
| 254 | for (i = 0; i <= av_len (av); ++i) |
254 | for (i = 0; i <= av_len (av); ++i) |
| 255 | { |
255 | { |
| 256 | int bigst = 1; |
256 | int bigst, j; |
| 257 | int j = 0; |
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| 258 | SV *sv = *av_fetch (av, i, 1); |
257 | SV *sv = *av_fetch (av, i, 1); |
| 259 | STRLEN len; |
258 | STRLEN len; |
| 260 | char *buf = SvPVbyte (sv, len); |
259 | char *buf = SvPVbyte (sv, len); |
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260 | |
| 261 | int tmphist[256]; |
261 | int tmphist[256]; |
| 262 | char *hist; |
262 | char *hist; |
| 263 | |
263 | |
| 264 | SV *histsv = newSV (257);//("", 0); |
264 | SV *histsv = newSV (257); |
| 265 | sv_upgrade (histsv, SVt_PV); |
265 | SvPOK_on (histsv); |
| 266 | SvCUR_set (histsv, 256); |
266 | SvCUR_set (histsv, 256); |
| 267 | hist = SvPV_nolen (histsv); |
267 | hist = SvPVX (histsv); |
| 268 | |
268 | |
| 269 | Zero (tmphist, 256, int); |
269 | Zero (tmphist, 256, int); |
| 270 | |
270 | |
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|
271 | j = len; |
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272 | |
| 271 | while (len--) |
273 | while (len--) |
| 272 | ++tmphist[*buf++]; |
274 | ++tmphist[(unsigned char)*buf++ & 0xda]; |
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275 | |
|
|
276 | len = j; |
| 273 | |
277 | |
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|
278 | bigst = 1; |
| 274 | for (j = 0; j < 256; ++j) |
279 | for (j = 0; j < 256; ++j) |
| 275 | if (tmphist[j] > bigst) |
280 | if (tmphist[j] > bigst) |
| 276 | bigst = tmphist[j]; |
281 | bigst = tmphist[j]; |
| 277 | |
282 | |
| 278 | for (j = 0; j < 256; ++j) |
283 | for (j = 0; j < 256; ++j) |
| 279 | hist[j] = tmphist[j] * 255 / bigst; |
284 | hist[j] = tmphist[j] * 255 / (len == 0 ? 1 : len);//bigst; |
| 280 | |
285 | |
| 281 | av_push (result, histsv); |
286 | av_push (result, histsv); |
| 282 | } |
287 | } |
| 283 | |
288 | |
| 284 | RETVAL = newRV_noinc ((SV *)result); |
289 | RETVAL = newRV_noinc ((SV *)result); |
