Mercurial > cpython-lru_cache-weakref
annotate Modules/svmodule.c @ 1590:ac2e5cc29949 legacy-trunk
Added tests for missing host to open_http and open_gopher
| author | Guido van Rossum <guido@python.org> |
|---|---|
| date | Mon, 18 Apr 1994 09:39:56 +0000 |
| parents | 685b31fe89c6 |
| children | 1940892d2fe3 |
| rev | line source |
|---|---|
| 1179 | 1 /********************************************************** |
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2 Copyright 1991, 1992, 1993 by Stichting Mathematisch Centrum, |
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3 Amsterdam, The Netherlands. |
| 1179 | 4 |
| 5 All Rights Reserved | |
| 6 | |
| 7 Permission to use, copy, modify, and distribute this software and its | |
| 8 documentation for any purpose and without fee is hereby granted, | |
| 9 provided that the above copyright notice appear in all copies and that | |
| 10 both that copyright notice and this permission notice appear in | |
| 11 supporting documentation, and that the names of Stichting Mathematisch | |
| 12 Centrum or CWI not be used in advertising or publicity pertaining to | |
| 13 distribution of the software without specific, written prior permission. | |
| 14 | |
| 15 STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO | |
| 16 THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND | |
| 17 FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE | |
| 18 FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
| 19 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
| 20 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT | |
| 21 OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
| 22 | |
| 23 ******************************************************************/ | |
| 24 | |
| 25 /* SV module -- interface to the Indigo video board */ | |
| 26 | |
| 27 #include <sys/time.h> | |
| 28 #include <svideo.h> | |
| 29 #include "allobjects.h" | |
| 30 #include "import.h" | |
| 31 #include "modsupport.h" | |
| 32 #include "compile.h" | |
| 33 #include "ceval.h" | |
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34 #include "yuv.h" /* for YUV conversion functions */ |
| 1179 | 35 |
| 36 typedef struct { | |
| 37 OB_HEAD | |
| 38 SV_nodeP ob_svideo; | |
| 39 svCaptureInfo ob_info; | |
| 40 } svobject; | |
| 41 | |
| 42 typedef struct { | |
| 43 OB_HEAD | |
| 44 void *ob_capture; | |
| 45 int ob_mustunlock; | |
| 46 svCaptureInfo ob_info; | |
| 47 svobject *ob_svideo; | |
| 48 } captureobject; | |
| 49 | |
| 50 static object *SvError; /* exception sv.error */ | |
| 51 | |
| 52 static object *newcaptureobject PROTO((svobject *, void *, int)); | |
| 53 | |
| 54 /* Set a SV-specific error from svideo_errno and return NULL */ | |
| 55 static object * | |
| 56 sv_error() | |
| 57 { | |
| 58 err_setstr(SvError, svStrerror(svideo_errno)); | |
| 59 return NULL; | |
| 60 } | |
| 61 | |
| 62 static object * | |
| 63 svc_conversion(self, args, function, factor) | |
| 64 captureobject *self; | |
| 65 object *args; | |
| 66 void (*function)(); | |
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67 float factor; |
| 1179 | 68 { |
| 69 object *output; | |
| 70 int invert; | |
| 71 | |
| 72 if (!getargs(args, "i", &invert)) | |
| 73 return NULL; | |
| 74 | |
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75 output = newsizedstringobject(NULL, (int) (self->ob_info.width * self->ob_info.height * factor)); |
| 1179 | 76 if (output == NULL) |
| 77 return NULL; | |
| 78 | |
| 79 (*function)((boolean) invert, self->ob_capture, getstringvalue(output), | |
| 80 self->ob_info.width, self->ob_info.height); | |
| 81 | |
| 82 return output; | |
| 83 } | |
| 84 | |
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85 /* |
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86 * 3 functions to convert from Starter Video YUV 4:1:1 format to |
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87 * Compression Library 4:2:2 Duplicate Chroma format. |
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88 */ |
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89 static object * |
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90 svc_YUVtoYUV422DC(self, args) |
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91 captureobject *self; |
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92 object *args; |
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93 { |
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94 if (self->ob_info.format != SV_YUV411_FRAMES) { |
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95 err_setstr(SvError, "data has bad format"); |
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96 return NULL; |
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97 } |
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98 return svc_conversion(self, args, yuv_sv411_to_cl422dc, 2.0); |
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99 } |
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100 |
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101 static object * |
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102 svc_YUVtoYUV422DC_quarter(self, args) |
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103 captureobject *self; |
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104 object *args; |
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105 { |
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106 if (self->ob_info.format != SV_YUV411_FRAMES) { |
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107 err_setstr(SvError, "data has bad format"); |
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108 return NULL; |
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109 } |
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110 return svc_conversion(self, args, yuv_sv411_to_cl422dc_quartersize, 0.5); |
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111 } |
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112 |
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113 static object * |
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114 svc_YUVtoYUV422DC_sixteenth(self, args) |
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115 captureobject *self; |
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116 object *args; |
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117 { |
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118 if (self->ob_info.format != SV_YUV411_FRAMES) { |
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119 err_setstr(SvError, "data has bad format"); |
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120 return NULL; |
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121 } |
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122 return svc_conversion(self, args, yuv_sv411_to_cl422dc_sixteenthsize, 0.125); |
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123 } |
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124 |
| 1179 | 125 static object * |
| 126 svc_YUVtoRGB(self, args) | |
| 127 captureobject *self; | |
| 128 object *args; | |
| 129 { | |
| 130 switch (self->ob_info.format) { | |
| 131 case SV_YUV411_FRAMES: | |
| 132 case SV_YUV411_FRAMES_AND_BLANKING_BUFFER: | |
| 133 break; | |
| 134 default: | |
| 135 err_setstr(SvError, "data had bad format"); | |
| 136 return NULL; | |
| 137 } | |
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138 return svc_conversion(self, args, svYUVtoRGB, (float) sizeof(long)); |
| 1179 | 139 } |
| 140 | |
| 141 static object * | |
| 142 svc_RGB8toRGB32(self, args) | |
| 143 captureobject *self; | |
| 144 object *args; | |
| 145 { | |
| 146 if (self->ob_info.format != SV_RGB8_FRAMES) { | |
| 147 err_setstr(SvError, "data has bad format"); | |
| 148 return NULL; | |
| 149 } | |
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150 return svc_conversion(self, args, svRGB8toRGB32, (float) sizeof(long)); |
| 1179 | 151 } |
| 152 | |
| 153 static object * | |
| 154 svc_InterleaveFields(self, args) | |
| 155 captureobject *self; | |
| 156 object *args; | |
| 157 { | |
| 158 if (self->ob_info.format != SV_RGB8_FRAMES) { | |
| 159 err_setstr(SvError, "data has bad format"); | |
| 160 return NULL; | |
| 161 } | |
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162 return svc_conversion(self, args, svInterleaveFields, 1.0); |
| 1179 | 163 } |
| 164 | |
| 165 static object * | |
| 166 svc_GetFields(self, args) | |
| 167 captureobject *self; | |
| 168 object *args; | |
| 169 { | |
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170 object *f1, *f2, *ret; |
| 1179 | 171 int fieldsize; |
| 172 | |
| 173 if (self->ob_info.format != SV_RGB8_FRAMES) { | |
| 174 err_setstr(SvError, "data has bad format"); | |
| 175 return NULL; | |
| 176 } | |
| 177 | |
| 178 fieldsize = self->ob_info.width * self->ob_info.height / 2; | |
| 179 f1 = newsizedstringobject((char *) self->ob_capture, fieldsize); | |
| 180 f2 = newsizedstringobject((char *) self->ob_capture + fieldsize, fieldsize); | |
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181 ret = mkvalue("(OO)", f1, f2); |
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182 XDECREF(f1); |
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183 XDECREF(f2); |
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184 return ret; |
| 1179 | 185 } |
| 186 | |
| 187 static object * | |
| 188 svc_UnlockCaptureData(self, args) | |
| 189 captureobject *self; | |
| 190 object *args; | |
| 191 { | |
| 192 if (!getnoarg(args)) | |
| 193 return NULL; | |
| 194 | |
| 195 if (!self->ob_mustunlock) { | |
| 196 err_setstr(SvError, "buffer should not be unlocked"); | |
| 197 return NULL; | |
| 198 } | |
| 199 | |
| 200 if (svUnlockCaptureData(self->ob_svideo->ob_svideo, self->ob_capture)) | |
| 201 return sv_error(); | |
| 202 | |
| 203 self->ob_mustunlock = 0; | |
| 204 | |
| 205 INCREF(None); | |
| 206 return None; | |
| 207 } | |
| 208 | |
| 209 #ifdef USE_GL | |
| 210 #include <gl.h> | |
| 211 | |
| 212 static object * | |
| 213 svc_lrectwrite(self, args) | |
| 214 captureobject *self; | |
| 215 object *args; | |
| 216 { | |
| 217 Screencoord x1, x2, y1, y2; | |
| 218 | |
| 219 if (!getargs(args, "(hhhh)", &x1, &x2, &y1, &y2)) | |
| 220 return NULL; | |
| 221 | |
| 222 lrectwrite(x1, x2, y1, y2, (unsigned long *) self->ob_capture); | |
| 223 | |
| 224 INCREF(None); | |
| 225 return None; | |
| 226 } | |
| 227 #endif | |
| 228 | |
| 229 static object * | |
| 230 writefile(self, args) | |
| 231 captureobject *self; | |
| 232 object *args; | |
| 233 { | |
| 234 object *file; | |
| 235 int size; | |
| 236 | |
| 237 if (!getargs(args, "O", &file)) | |
| 238 return NULL; | |
| 239 | |
| 240 if (!is_fileobject(file)) { | |
| 241 err_setstr(SvError, "not a file object"); | |
| 242 return NULL; | |
| 243 } | |
| 244 | |
| 245 size = self->ob_info.width * self->ob_info.height; | |
| 246 | |
| 247 if (fwrite(self->ob_capture, sizeof(long), size, getfilefile(file)) != size) { | |
| 248 err_setstr(SvError, "writing failed"); | |
| 249 return NULL; | |
| 250 } | |
| 251 | |
| 252 INCREF(None); | |
| 253 return None; | |
| 254 } | |
| 255 | |
| 256 static object * | |
| 257 svc_FindVisibleRegion(self, args) | |
| 258 captureobject *self; | |
| 259 object *args; | |
| 260 { | |
| 261 void *visible; | |
| 262 int width; | |
| 263 | |
| 264 if (!getnoarg(args)) | |
| 265 return NULL; | |
| 266 | |
| 267 if (svFindVisibleRegion(self->ob_svideo->ob_svideo, self->ob_capture, &visible, self->ob_info.width)) | |
| 268 return sv_error(); | |
| 269 | |
| 270 if (visible == NULL) { | |
| 271 err_setstr(SvError, "data in wrong format"); | |
| 272 return NULL; | |
| 273 } | |
| 274 | |
| 275 return newcaptureobject(self->ob_svideo, visible, 0); | |
| 276 } | |
| 277 | |
| 278 static struct methodlist capture_methods[] = { | |
| 279 {"YUVtoRGB", svc_YUVtoRGB}, | |
| 280 {"RGB8toRGB32", svc_RGB8toRGB32}, | |
| 281 {"InterleaveFields", svc_InterleaveFields}, | |
| 282 {"UnlockCaptureData", svc_UnlockCaptureData}, | |
| 283 {"FindVisibleRegion", svc_FindVisibleRegion}, | |
| 284 {"GetFields", svc_GetFields}, | |
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285 {"YUVtoYUV422DC", svc_YUVtoYUV422DC}, |
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286 {"YUVtoYUV422DC_quarter",svc_YUVtoYUV422DC_quarter}, |
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287 {"YUVtoYUV422DC_sixteenth",svc_YUVtoYUV422DC_sixteenth}, |
| 1179 | 288 #ifdef USE_GL |
| 289 {"lrectwrite", svc_lrectwrite}, | |
| 290 #endif | |
| 291 {"writefile", writefile}, | |
| 292 {NULL, NULL} /* sentinel */ | |
| 293 }; | |
| 294 | |
| 295 static void | |
| 296 capture_dealloc(self) | |
| 297 captureobject *self; | |
| 298 { | |
| 299 if (self->ob_capture != NULL) { | |
| 300 if (self->ob_mustunlock) | |
| 301 (void) svUnlockCaptureData(self->ob_svideo->ob_svideo, self->ob_capture); | |
| 302 self->ob_capture = NULL; | |
| 303 DECREF(self->ob_svideo); | |
| 304 self->ob_svideo = NULL; | |
| 305 } | |
| 306 DEL(self); | |
| 307 } | |
| 308 | |
| 309 static object * | |
| 310 capture_getattr(self, name) | |
| 311 svobject *self; | |
| 312 char *name; | |
| 313 { | |
| 314 return findmethod(capture_methods, (object *)self, name); | |
| 315 } | |
| 316 | |
| 317 typeobject Capturetype = { | |
| 318 OB_HEAD_INIT(&Typetype) | |
| 319 0, /*ob_size*/ | |
| 320 "capture", /*tp_name*/ | |
| 321 sizeof(captureobject), /*tp_size*/ | |
| 322 0, /*tp_itemsize*/ | |
| 323 /* methods */ | |
| 324 capture_dealloc, /*tp_dealloc*/ | |
| 325 0, /*tp_print*/ | |
| 326 capture_getattr, /*tp_getattr*/ | |
| 327 0, /*tp_setattr*/ | |
| 328 0, /*tp_compare*/ | |
| 329 0, /*tp_repr*/ | |
| 330 }; | |
| 331 | |
| 332 static object * | |
| 333 newcaptureobject(self, ptr, mustunlock) | |
| 334 svobject *self; | |
| 335 void *ptr; | |
| 336 int mustunlock; | |
| 337 { | |
| 338 captureobject *p; | |
| 339 | |
| 340 p = NEWOBJ(captureobject, &Capturetype); | |
| 341 if (p == NULL) | |
| 342 return NULL; | |
| 343 p->ob_svideo = self; | |
| 344 INCREF(self); | |
| 345 p->ob_capture = ptr; | |
| 346 p->ob_mustunlock = mustunlock; | |
| 347 p->ob_info = self->ob_info; | |
| 348 return (object *) p; | |
| 349 } | |
| 350 | |
| 351 static object * | |
| 352 sv_GetCaptureData(self, args) | |
| 353 svobject *self; | |
| 354 object *args; | |
| 355 { | |
| 356 void *ptr; | |
| 357 long fieldID; | |
| 358 object *res, *c; | |
| 359 | |
| 360 if (!getnoarg(args)) | |
| 361 return NULL; | |
| 362 | |
| 363 if (svGetCaptureData(self->ob_svideo, &ptr, &fieldID)) | |
| 364 return sv_error(); | |
| 365 | |
| 366 if (ptr == NULL) { | |
| 367 err_setstr(SvError, "no data available"); | |
| 368 return NULL; | |
| 369 } | |
| 370 | |
| 371 c = newcaptureobject(self, ptr, 1); | |
| 372 if (c == NULL) | |
| 373 return NULL; | |
| 374 res = mkvalue("(Oi)", c, fieldID); | |
| 375 DECREF(c); | |
| 376 return res; | |
| 377 } | |
| 378 | |
| 379 static object * | |
| 380 sv_BindGLWindow(self, args) | |
| 381 svobject *self; | |
| 382 object *args; | |
| 383 { | |
| 384 long wid; | |
| 385 int mode; | |
| 386 | |
| 387 if (!getargs(args, "(ii)", &wid, &mode)) | |
| 388 return NULL; | |
| 389 | |
| 390 if (svBindGLWindow(self->ob_svideo, wid, mode)) | |
| 391 return sv_error(); | |
| 392 | |
| 393 INCREF(None); | |
| 394 return None; | |
| 395 } | |
| 396 | |
| 397 static object * | |
| 398 sv_EndContinuousCapture(self, args) | |
| 399 svobject *self; | |
| 400 object *args; | |
| 401 { | |
| 402 | |
| 403 if (!getnoarg(args)) | |
| 404 return NULL; | |
| 405 | |
| 406 if (svEndContinuousCapture(self->ob_svideo)) | |
| 407 return sv_error(); | |
| 408 | |
| 409 INCREF(None); | |
| 410 return None; | |
| 411 } | |
| 412 | |
| 413 static object * | |
| 414 sv_IsVideoDisplayed(self, args) | |
| 415 svobject *self; | |
| 416 object *args; | |
| 417 { | |
| 418 int v; | |
| 419 | |
| 420 if (!getnoarg(args)) | |
| 421 return NULL; | |
| 422 | |
| 423 v = svIsVideoDisplayed(self->ob_svideo); | |
| 424 if (v == -1) | |
| 425 return sv_error(); | |
| 426 | |
| 427 return newintobject((long) v); | |
| 428 } | |
| 429 | |
| 430 static object * | |
| 431 sv_OutputOffset(self, args) | |
| 432 svobject *self; | |
| 433 object *args; | |
| 434 { | |
| 435 int x_offset; | |
| 436 int y_offset; | |
| 437 | |
| 438 if (!getargs(args, "(ii)", &x_offset, &y_offset)) | |
| 439 return NULL; | |
| 440 | |
| 441 if (svOutputOffset(self->ob_svideo, x_offset, y_offset)) | |
| 442 return sv_error(); | |
| 443 | |
| 444 INCREF(None); | |
| 445 return None; | |
| 446 } | |
| 447 | |
| 448 static object * | |
| 449 sv_PutFrame(self, args) | |
| 450 svobject *self; | |
| 451 object *args; | |
| 452 { | |
| 453 char *buffer; | |
| 454 | |
| 455 if (!getargs(args, "s", &buffer)) | |
| 456 return NULL; | |
| 457 | |
| 458 if (svPutFrame(self->ob_svideo, buffer)) | |
| 459 return sv_error(); | |
| 460 | |
| 461 INCREF(None); | |
| 462 return None; | |
| 463 } | |
| 464 | |
| 465 static object * | |
| 466 sv_QuerySize(self, args) | |
| 467 svobject *self; | |
| 468 object *args; | |
| 469 { | |
| 470 int w; | |
| 471 int h; | |
| 472 int rw; | |
| 473 int rh; | |
| 474 | |
| 475 if (!getargs(args, "(ii)", &w, &h)) | |
| 476 return NULL; | |
| 477 | |
| 478 if (svQuerySize(self->ob_svideo, w, h, &rw, &rh)) | |
| 479 return sv_error(); | |
| 480 | |
| 481 return mkvalue("(ii)", (long) rw, (long) rh); | |
| 482 } | |
| 483 | |
| 484 static object * | |
| 485 sv_SetSize(self, args) | |
| 486 svobject *self; | |
| 487 object *args; | |
| 488 { | |
| 489 int w; | |
| 490 int h; | |
| 491 | |
| 492 if (!getargs(args, "(ii)", &w, &h)) | |
| 493 return NULL; | |
| 494 | |
| 495 if (svSetSize(self->ob_svideo, w, h)) | |
| 496 return sv_error(); | |
| 497 | |
| 498 INCREF(None); | |
| 499 return None; | |
| 500 } | |
| 501 | |
| 502 static object * | |
| 503 sv_SetStdDefaults(self, args) | |
| 504 svobject *self; | |
| 505 object *args; | |
| 506 { | |
| 507 | |
| 508 if (!getnoarg(args)) | |
| 509 return NULL; | |
| 510 | |
| 511 if (svSetStdDefaults(self->ob_svideo)) | |
| 512 return sv_error(); | |
| 513 | |
| 514 INCREF(None); | |
| 515 return None; | |
| 516 } | |
| 517 | |
| 518 static object * | |
| 519 sv_UseExclusive(self, args) | |
| 520 svobject *self; | |
| 521 object *args; | |
| 522 { | |
| 523 boolean onoff; | |
| 524 int mode; | |
| 525 | |
| 526 if (!getargs(args, "(ii)", &onoff, &mode)) | |
| 527 return NULL; | |
| 528 | |
| 529 if (svUseExclusive(self->ob_svideo, onoff, mode)) | |
| 530 return sv_error(); | |
| 531 | |
| 532 INCREF(None); | |
| 533 return None; | |
| 534 } | |
| 535 | |
| 536 static object * | |
| 537 sv_WindowOffset(self, args) | |
| 538 svobject *self; | |
| 539 object *args; | |
| 540 { | |
| 541 int x_offset; | |
| 542 int y_offset; | |
| 543 | |
| 544 if (!getargs(args, "(ii)", &x_offset, &y_offset)) | |
| 545 return NULL; | |
| 546 | |
| 547 if (svWindowOffset(self->ob_svideo, x_offset, y_offset)) | |
| 548 return sv_error(); | |
| 549 | |
| 550 INCREF(None); | |
| 551 return None; | |
| 552 } | |
| 553 | |
| 554 static object * | |
| 555 sv_CaptureBurst(self, args) | |
| 556 svobject *self; | |
| 557 object *args; | |
| 558 { | |
| 559 int bytes, i; | |
| 560 svCaptureInfo info; | |
| 561 void *bitvector = NULL; | |
| 562 object *videodata, *bitvecobj, *res; | |
| 563 static object *evenitem, *odditem; | |
| 564 | |
| 565 if (!getargs(args, "(iiiii)", &info.format, &info.width, &info.height, | |
| 566 &info.size, &info.samplingrate)) | |
| 567 return NULL; | |
| 568 | |
| 569 switch (info.format) { | |
| 570 case SV_RGB8_FRAMES: | |
| 571 bitvector = malloc(SV_BITVEC_SIZE(info.size)); | |
| 572 break; | |
| 573 case SV_YUV411_FRAMES_AND_BLANKING_BUFFER: | |
| 574 break; | |
| 575 default: | |
| 576 err_setstr(SvError, "illegal format specified"); | |
| 577 return NULL; | |
| 578 } | |
| 579 | |
| 580 if (svQueryCaptureBufferSize(self->ob_svideo, &info, &bytes)) { | |
| 581 if (bitvector) | |
| 582 free(bitvector); | |
| 583 return sv_error(); | |
| 584 } | |
| 585 | |
| 586 videodata = newsizedstringobject(NULL, bytes); | |
| 587 if (videodata == NULL) { | |
| 588 if (bitvector) | |
| 589 free(bitvector); | |
| 590 return NULL; | |
| 591 } | |
| 592 | |
| 593 /* XXX -- need to do something about the bitvector */ | |
| 594 if (svCaptureBurst(self->ob_svideo, &info, getstringvalue(videodata), | |
| 595 bitvector)) { | |
| 596 if (bitvector) | |
| 597 free(bitvector); | |
| 598 DECREF(videodata); | |
| 599 return sv_error(); | |
| 600 } | |
| 601 | |
| 602 if (bitvector) { | |
| 603 if (evenitem == NULL) { | |
| 604 evenitem = newintobject(0); | |
| 605 if (evenitem == NULL) { | |
| 606 free(bitvector); | |
| 607 DECREF(videodata); | |
| 608 return NULL; | |
| 609 } | |
| 610 } | |
| 611 if (odditem == NULL) { | |
| 612 odditem = newintobject(1); | |
| 613 if (odditem == NULL) { | |
| 614 free(bitvector); | |
| 615 DECREF(videodata); | |
| 616 return NULL; | |
| 617 } | |
| 618 } | |
| 619 bitvecobj = newtupleobject(2 * info.size); | |
| 620 if (bitvecobj == NULL) { | |
| 621 free(bitvecobj); | |
| 622 DECREF(videodata); | |
| 623 return NULL; | |
| 624 } | |
| 625 for (i = 0; i < 2 * info.size; i++) { | |
| 626 if (SV_GET_FIELD(bitvector, i) == SV_EVEN_FIELD) { | |
| 627 INCREF(evenitem); | |
| 628 settupleitem(bitvecobj, i, evenitem); | |
| 629 } else { | |
| 630 INCREF(odditem); | |
| 631 settupleitem(bitvecobj, i, odditem); | |
| 632 } | |
| 633 } | |
| 634 free(bitvector); | |
| 635 } else { | |
| 636 bitvecobj = None; | |
| 637 INCREF(None); | |
| 638 } | |
| 639 | |
| 640 res = mkvalue("((iiiii)OO)", info.format, info.width, info.height, | |
| 641 info.size, info.samplingrate, videodata, bitvecobj); | |
| 642 DECREF(videodata); | |
| 643 DECREF(bitvecobj); | |
| 644 return res; | |
| 645 } | |
| 646 | |
| 647 static object * | |
| 648 sv_CaptureOneFrame(self, args) | |
| 649 svobject *self; | |
| 650 object *args; | |
| 651 { | |
| 652 svCaptureInfo info; | |
| 653 int format, width, height; | |
| 654 int bytes; | |
| 655 object *videodata, *res; | |
| 656 | |
| 657 if (!getargs(args, "(iii)", &format, &width, &height)) | |
| 658 return NULL; | |
| 659 info.format = format; | |
| 660 info.width = width; | |
| 661 info.height = height; | |
| 662 info.size = 0; | |
| 663 info.samplingrate = 0; | |
| 664 if (svQueryCaptureBufferSize(self->ob_svideo, &info, &bytes)) | |
| 665 return sv_error(); | |
| 666 videodata = newsizedstringobject(NULL, bytes); | |
| 667 if (videodata == NULL) | |
| 668 return NULL; | |
| 669 if (svCaptureOneFrame(self->ob_svideo, format, &width, &height, | |
| 670 getstringvalue(videodata))) { | |
| 671 DECREF(videodata); | |
| 672 return sv_error(); | |
| 673 } | |
| 674 | |
| 675 res = mkvalue("(iiO)", width, height, videodata); | |
| 676 DECREF(videodata); | |
| 677 return res; | |
| 678 } | |
| 679 | |
| 680 static object * | |
| 681 sv_InitContinuousCapture(self, args) | |
| 682 svobject *self; | |
| 683 object *args; | |
| 684 { | |
| 685 svCaptureInfo info; | |
| 686 | |
| 687 if (!getargs(args, "(iiiii)", &info.format, &info.width, &info.height, | |
| 688 &info.size, &info.samplingrate)) | |
| 689 return NULL; | |
| 690 | |
| 691 if (svInitContinuousCapture(self->ob_svideo, &info)) | |
| 692 return sv_error(); | |
| 693 | |
| 694 self->ob_info = info; | |
| 695 | |
| 696 return mkvalue("(iiiii)", info.format, info.width, info.height, | |
| 697 info.size, info.samplingrate); | |
| 698 } | |
| 699 | |
| 700 static object * | |
| 701 sv_LoadMap(self, args) | |
| 702 svobject *self; | |
| 703 object *args; | |
| 704 { | |
| 705 object *rgb, *v, *cell; | |
| 706 rgb_tuple *mapp; | |
| 707 int maptype; | |
| 708 int i, j; /* indices */ | |
| 709 | |
| 710 if (!getargs(args, "(iO)", &maptype, &rgb)) | |
| 711 return NULL; | |
| 712 if (!is_listobject(rgb) || getlistsize(rgb) != 256) { | |
| 713 err_badarg(); | |
| 714 return NULL; | |
| 715 } | |
| 716 mapp = NEW(rgb_tuple, 256); | |
| 717 if (mapp == NULL) | |
| 718 return err_nomem(); | |
| 719 for (i = 0; i < 256; i++) { | |
| 720 v = getlistitem(rgb, i); | |
| 721 if (!is_tupleobject(v) || gettuplesize(v) != 3) { | |
| 722 DEL(mapp); | |
| 723 err_badarg(); | |
| 724 return NULL; | |
| 725 } | |
| 726 for (j = 0; j < 3; j++) { | |
| 727 cell = gettupleitem(v, j); | |
| 728 if (!is_intobject(cell)) { | |
| 729 DEL(mapp); | |
| 730 err_badarg(); | |
| 731 return NULL; | |
| 732 } | |
| 733 switch (j) { | |
| 734 case 0: mapp[i].red = getintvalue(cell); break; | |
| 735 case 1: mapp[i].blue = getintvalue(cell); break; | |
| 736 case 2: mapp[i].green = getintvalue(cell); break; | |
| 737 } | |
| 738 } | |
| 739 } | |
| 740 | |
| 741 if (svLoadMap(self->ob_svideo, maptype, mapp)) { | |
| 742 DEL(mapp); | |
| 743 return sv_error(); | |
| 744 } | |
| 745 | |
| 746 DEL(mapp); | |
| 747 | |
| 748 INCREF(None); | |
| 749 return None; | |
| 750 } | |
| 751 | |
| 752 static object * | |
| 753 sv_CloseVideo(self, args) | |
| 754 svobject *self; | |
| 755 object *args; | |
| 756 { | |
| 757 if (!getnoarg(args)) | |
| 758 return NULL; | |
| 759 | |
| 760 if (svCloseVideo(self->ob_svideo)) | |
| 761 return sv_error(); | |
| 762 self->ob_svideo = NULL; | |
| 763 | |
| 764 INCREF(None); | |
| 765 return None; | |
| 766 } | |
| 767 | |
| 768 static object * | |
| 769 doParams(self, args, func, modified) | |
| 770 svobject *self; | |
| 771 object *args; | |
| 772 int (*func)(SV_nodeP, long *, int); | |
| 773 int modified; | |
| 774 { | |
| 775 object *list, *v; | |
| 776 long *PVbuffer; | |
| 777 long length; | |
| 778 int i; | |
| 779 | |
| 780 if (!getargs(args, "O", &list)) | |
| 781 return NULL; | |
| 782 if (!is_listobject(list)) { | |
| 783 err_badarg(); | |
| 784 return NULL; | |
| 785 } | |
| 786 length = getlistsize(list); | |
| 787 PVbuffer = NEW(long, length); | |
| 788 if (PVbuffer == NULL) | |
| 789 return err_nomem(); | |
| 790 for (i = 0; i < length; i++) { | |
| 791 v = getlistitem(list, i); | |
| 792 if (!is_intobject(v)) { | |
| 793 DEL(PVbuffer); | |
| 794 err_badarg(); | |
| 795 return NULL; | |
| 796 } | |
| 797 PVbuffer[i] = getintvalue(v); | |
| 798 } | |
| 799 | |
| 800 if ((*func)(self->ob_svideo, PVbuffer, length)) { | |
| 801 DEL(PVbuffer); | |
| 802 return sv_error(); | |
| 803 } | |
| 804 | |
| 805 if (modified) { | |
| 806 for (i = 0; i < length; i++) | |
| 807 setlistitem(list, i, newintobject(PVbuffer[i])); | |
| 808 } | |
| 809 | |
| 810 DEL(PVbuffer); | |
| 811 | |
| 812 INCREF(None); | |
| 813 return None; | |
| 814 } | |
| 815 | |
| 816 static object * | |
| 817 sv_GetParam(self, args) | |
| 818 object *self, *args; | |
| 819 { | |
| 820 return doParams(self, args, svGetParam, 1); | |
| 821 } | |
| 822 | |
| 823 static object * | |
| 824 sv_GetParamRange(self, args) | |
| 825 object *self, *args; | |
| 826 { | |
| 827 return doParams(self, args, svGetParamRange, 1); | |
| 828 } | |
| 829 | |
| 830 static object * | |
| 831 sv_SetParam(self, args) | |
| 832 object *self, *args; | |
| 833 { | |
| 834 return doParams(self, args, svSetParam, 0); | |
| 835 } | |
| 836 | |
| 837 static struct methodlist svideo_methods[] = { | |
| 838 {"BindGLWindow", sv_BindGLWindow}, | |
| 839 {"EndContinuousCapture",sv_EndContinuousCapture}, | |
| 840 {"IsVideoDisplayed", sv_IsVideoDisplayed}, | |
| 841 {"OutputOffset", sv_OutputOffset}, | |
| 842 {"PutFrame", sv_PutFrame}, | |
| 843 {"QuerySize", sv_QuerySize}, | |
| 844 {"SetSize", sv_SetSize}, | |
| 845 {"SetStdDefaults", sv_SetStdDefaults}, | |
| 846 {"UseExclusive", sv_UseExclusive}, | |
| 847 {"WindowOffset", sv_WindowOffset}, | |
| 848 {"InitContinuousCapture",sv_InitContinuousCapture}, | |
| 849 {"CaptureBurst", sv_CaptureBurst}, | |
| 850 {"CaptureOneFrame", sv_CaptureOneFrame}, | |
| 851 {"GetCaptureData", sv_GetCaptureData}, | |
| 852 {"CloseVideo", sv_CloseVideo}, | |
| 853 {"LoadMap", sv_LoadMap}, | |
| 854 {"GetParam", sv_GetParam}, | |
| 855 {"GetParamRange", sv_GetParamRange}, | |
| 856 {"SetParam", sv_SetParam}, | |
| 857 {NULL, NULL} /* sentinel */ | |
| 858 }; | |
| 859 | |
| 860 static object * | |
| 861 sv_conversion(self, args, function, inputfactor, factor) | |
| 862 object *self, *args; | |
| 863 void (*function)(); | |
|
1253
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Added conversion routines to sv module.
Sjoerd Mullender <sjoerd@acm.org>
parents:
1207
diff
changeset
|
864 int inputfactor; |
|
685b31fe89c6
Added conversion routines to sv module.
Sjoerd Mullender <sjoerd@acm.org>
parents:
1207
diff
changeset
|
865 float factor; |
| 1179 | 866 { |
| 867 int invert, width, height, inputlength; | |
| 868 char *input; | |
| 869 object *output; | |
| 870 | |
| 871 if (!getargs(args, "(is#ii)", &invert, &input, &inputlength, &width, &height)) | |
| 872 return NULL; | |
| 873 | |
| 874 if (width * height * inputfactor > inputlength) { | |
| 875 err_setstr(SvError, "input buffer not long enough"); | |
| 876 return NULL; | |
| 877 } | |
| 878 | |
|
1253
685b31fe89c6
Added conversion routines to sv module.
Sjoerd Mullender <sjoerd@acm.org>
parents:
1207
diff
changeset
|
879 output = newsizedstringobject(NULL, (int) (width * height * factor)); |
| 1179 | 880 if (output == NULL) |
| 881 return NULL; | |
| 882 | |
| 883 (*function)(invert, input, getstringvalue(output), width, height); | |
| 884 | |
| 885 return output; | |
| 886 } | |
| 887 | |
| 888 static object * | |
| 889 sv_InterleaveFields(self, args) | |
| 890 object *self, *args; | |
| 891 { | |
|
1253
685b31fe89c6
Added conversion routines to sv module.
Sjoerd Mullender <sjoerd@acm.org>
parents:
1207
diff
changeset
|
892 return sv_conversion(self, args, svInterleaveFields, 1, 1.0); |
| 1179 | 893 } |
| 894 | |
| 895 static object * | |
| 896 sv_RGB8toRGB32(self, args) | |
| 897 object *self, *args; | |
| 898 { | |
|
1253
685b31fe89c6
Added conversion routines to sv module.
Sjoerd Mullender <sjoerd@acm.org>
parents:
1207
diff
changeset
|
899 return sv_conversion(self, args, svRGB8toRGB32, 1, (float) sizeof(long)); |
| 1179 | 900 } |
| 901 | |
| 902 static object * | |
| 903 sv_YUVtoRGB(self, args) | |
| 904 object *self, *args; | |
| 905 { | |
|
1253
685b31fe89c6
Added conversion routines to sv module.
Sjoerd Mullender <sjoerd@acm.org>
parents:
1207
diff
changeset
|
906 return sv_conversion(self, args, svYUVtoRGB, 2, (float) sizeof(long)); |
| 1179 | 907 } |
| 908 | |
| 909 static void | |
| 910 svideo_dealloc(self) | |
| 911 svobject *self; | |
| 912 { | |
| 913 if (self->ob_svideo != NULL) | |
| 914 (void) svCloseVideo(self->ob_svideo); | |
| 915 DEL(self); | |
| 916 } | |
| 917 | |
| 918 static object * | |
| 919 svideo_getattr(self, name) | |
| 920 svobject *self; | |
| 921 char *name; | |
| 922 { | |
| 923 return findmethod(svideo_methods, (object *)self, name); | |
| 924 } | |
| 925 | |
| 926 typeobject Svtype = { | |
| 927 OB_HEAD_INIT(&Typetype) | |
| 928 0, /*ob_size*/ | |
| 929 "sv", /*tp_name*/ | |
| 930 sizeof(svobject), /*tp_size*/ | |
| 931 0, /*tp_itemsize*/ | |
| 932 /* methods */ | |
| 933 svideo_dealloc, /*tp_dealloc*/ | |
| 934 0, /*tp_print*/ | |
| 935 svideo_getattr, /*tp_getattr*/ | |
| 936 0, /*tp_setattr*/ | |
| 937 0, /*tp_compare*/ | |
| 938 0, /*tp_repr*/ | |
| 939 }; | |
| 940 | |
| 941 static object * | |
| 942 newsvobject(svp) | |
| 943 SV_nodeP svp; | |
| 944 { | |
| 945 svobject *p; | |
| 946 | |
| 947 p = NEWOBJ(svobject, &Svtype); | |
| 948 if (p == NULL) | |
| 949 return NULL; | |
| 950 p->ob_svideo = svp; | |
| 951 p->ob_info.format = 0; | |
| 952 p->ob_info.size = 0; | |
| 953 p->ob_info.width = 0; | |
| 954 p->ob_info.height = 0; | |
| 955 p->ob_info.samplingrate = 0; | |
| 956 return (object *) p; | |
| 957 } | |
| 958 | |
| 959 static object * | |
| 960 sv_OpenVideo(self, args) | |
| 961 object *self, *args; | |
| 962 { | |
| 963 SV_nodeP svp; | |
| 964 | |
| 965 if (!getnoarg(args)) | |
| 966 return NULL; | |
| 967 | |
| 968 svp = svOpenVideo(); | |
| 969 if (svp == NULL) | |
| 970 return sv_error(); | |
| 971 | |
| 972 return newsvobject(svp); | |
| 973 } | |
| 974 | |
| 975 static struct methodlist sv_methods[] = { | |
| 976 {"InterleaveFields", sv_InterleaveFields}, | |
| 977 {"RGB8toRGB32", sv_RGB8toRGB32}, | |
| 978 {"YUVtoRGB", sv_YUVtoRGB}, | |
| 979 {"OpenVideo", sv_OpenVideo}, | |
| 980 {NULL, NULL} /* Sentinel */ | |
| 981 }; | |
| 982 | |
| 983 void | |
| 984 initsv() | |
| 985 { | |
| 986 object *m, *d; | |
| 987 | |
| 988 m = initmodule("sv", sv_methods); | |
| 989 d = getmoduledict(m); | |
| 990 | |
| 991 SvError = newstringobject("sv.error"); | |
| 992 if (SvError == NULL || dictinsert(d, "error", SvError) != 0) | |
| 993 fatal("can't define sv.error"); | |
| 994 } |