Mercurial > cpython-lru_cache-weakref
annotate Modules/svmodule.c @ 16798:258dcafe2d0b legacy-trunk
Gustavo Niemeyer <niemeyer@conectiva.com>:
Fixed recno support (keys are integers rather than strings).
Work around DB bug that cause stdin to be closed by rnopen() when the
DB file needed to exist but did not (no longer segfaults).
This closes SF tracker patch #403445.
Also wrapped some long lines and added whitespace around operators -- FLD.
| author | Fred Drake <fdrake@acm.org> |
|---|---|
| date | Tue, 27 Feb 2001 18:56:46 +0000 |
| parents | 6f6f965c5e2d |
| children | 91dd223829c6 |
| rev | line source |
|---|---|
| 1179 | 1 /* SV module -- interface to the Indigo video board */ |
| 2 | |
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3 /* WARNING! This module is for hardware that we don't have any more, |
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4 so it hasn't been tested. It has been converted to the new coding |
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5 style, and it is possible that this conversion has broken something |
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6 -- user beware! */ |
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7 |
| 1179 | 8 #include <sys/time.h> |
| 9 #include <svideo.h> | |
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10 #include "Python.h" |
| 1179 | 11 #include "compile.h" |
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12 #include "yuv.h" /* for YUV conversion functions */ |
| 1179 | 13 |
| 14 typedef struct { | |
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15 PyObject_HEAD |
| 1179 | 16 SV_nodeP ob_svideo; |
| 17 svCaptureInfo ob_info; | |
| 18 } svobject; | |
| 19 | |
| 20 typedef struct { | |
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21 PyObject_HEAD |
| 1179 | 22 void *ob_capture; |
| 23 int ob_mustunlock; | |
| 24 svCaptureInfo ob_info; | |
| 25 svobject *ob_svideo; | |
| 26 } captureobject; | |
| 27 | |
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28 static PyObject *SvError; /* exception sv.error */ |
| 1179 | 29 |
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30 static PyObject *newcaptureobject(svobject *, void *, int); |
| 1179 | 31 |
| 32 /* Set a SV-specific error from svideo_errno and return NULL */ | |
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33 static PyObject * |
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34 sv_error(void) |
| 1179 | 35 { |
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36 PyErr_SetString(SvError, svStrerror(svideo_errno)); |
| 1179 | 37 return NULL; |
| 38 } | |
| 39 | |
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40 static PyObject * |
| 13503 | 41 svc_conversion(captureobject *self, PyObject *args, void (*function)(), float factor) |
| 1179 | 42 { |
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43 PyObject *output; |
| 1179 | 44 int invert; |
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45 char* outstr; |
| 1179 | 46 |
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47 if (!PyArg_Parse(args, "i", &invert)) |
| 1179 | 48 return NULL; |
| 49 | |
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50 if (!(output = PyString_FromStringAndSize( |
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51 NULL, |
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52 (int)(self->ob_info.width * self->ob_info.height * factor)))) |
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53 { |
| 1179 | 54 return NULL; |
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55 } |
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56 if (!(outstr = PyString_AsString(output))) { |
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57 Py_DECREF(output); |
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58 return NULL; |
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59 } |
| 1179 | 60 |
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61 (*function)((boolean)invert, self->ob_capture, |
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62 outstr, |
| 1179 | 63 self->ob_info.width, self->ob_info.height); |
| 64 | |
| 65 return output; | |
| 66 } | |
| 67 | |
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68 /* |
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69 * 3 functions to convert from Starter Video YUV 4:1:1 format to |
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70 * Compression Library 4:2:2 Duplicate Chroma format. |
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71 */ |
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72 static PyObject * |
| 13503 | 73 svc_YUVtoYUV422DC(captureobject *self, PyObject *args) |
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74 { |
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75 if (self->ob_info.format != SV_YUV411_FRAMES) { |
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76 PyErr_SetString(SvError, "data has bad format"); |
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77 return NULL; |
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78 } |
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79 return svc_conversion(self, args, yuv_sv411_to_cl422dc, 2.0); |
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80 } |
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81 |
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82 static PyObject * |
| 13503 | 83 svc_YUVtoYUV422DC_quarter(captureobject *self, PyObject *args) |
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84 { |
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85 if (self->ob_info.format != SV_YUV411_FRAMES) { |
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86 PyErr_SetString(SvError, "data has bad format"); |
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87 return NULL; |
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88 } |
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89 return svc_conversion(self, args, |
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90 yuv_sv411_to_cl422dc_quartersize, 0.5); |
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91 } |
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92 |
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93 static PyObject * |
| 13503 | 94 svc_YUVtoYUV422DC_sixteenth(captureobject *self, PyObject *args) |
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95 { |
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96 if (self->ob_info.format != SV_YUV411_FRAMES) { |
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97 PyErr_SetString(SvError, "data has bad format"); |
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98 return NULL; |
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99 } |
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100 return svc_conversion(self, args, |
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101 yuv_sv411_to_cl422dc_sixteenthsize, 0.125); |
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102 } |
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103 |
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104 static PyObject * |
| 13503 | 105 svc_YUVtoRGB(captureobject *self, PyObject *args) |
| 1179 | 106 { |
| 107 switch (self->ob_info.format) { | |
| 108 case SV_YUV411_FRAMES: | |
| 109 case SV_YUV411_FRAMES_AND_BLANKING_BUFFER: | |
| 110 break; | |
| 111 default: | |
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112 PyErr_SetString(SvError, "data had bad format"); |
| 1179 | 113 return NULL; |
| 114 } | |
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115 return svc_conversion(self, args, svYUVtoRGB, (float) sizeof(long)); |
| 1179 | 116 } |
| 117 | |
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118 static PyObject * |
| 13503 | 119 svc_RGB8toRGB32(captureobject *self, PyObject *args) |
| 1179 | 120 { |
| 121 if (self->ob_info.format != SV_RGB8_FRAMES) { | |
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122 PyErr_SetString(SvError, "data has bad format"); |
| 1179 | 123 return NULL; |
| 124 } | |
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125 return svc_conversion(self, args, svRGB8toRGB32, (float) sizeof(long)); |
| 1179 | 126 } |
| 127 | |
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128 static PyObject * |
| 13503 | 129 svc_InterleaveFields(captureobject *self, PyObject *args) |
| 1179 | 130 { |
| 131 if (self->ob_info.format != SV_RGB8_FRAMES) { | |
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132 PyErr_SetString(SvError, "data has bad format"); |
| 1179 | 133 return NULL; |
| 134 } | |
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135 return svc_conversion(self, args, svInterleaveFields, 1.0); |
| 1179 | 136 } |
| 137 | |
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138 static PyObject * |
| 13503 | 139 svc_GetFields(captureobject *self, PyObject *args) |
| 1179 | 140 { |
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141 PyObject *f1 = NULL; |
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142 PyObject *f2 = NULL; |
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143 PyObject *ret = NULL; |
| 1179 | 144 int fieldsize; |
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145 char* obcapture; |
| 1179 | 146 |
| 147 if (self->ob_info.format != SV_RGB8_FRAMES) { | |
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148 PyErr_SetString(SvError, "data has bad format"); |
| 1179 | 149 return NULL; |
| 150 } | |
| 151 | |
| 152 fieldsize = self->ob_info.width * self->ob_info.height / 2; | |
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153 obcapture = (char*)self->ob_capture; |
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154 |
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155 if (!(f1 = PyString_FromStringAndSize(obcapture, fieldsize))) |
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156 goto finally; |
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157 if (!(f2 = PyString_FromStringAndSize(obcapture + fieldsize, |
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158 fieldsize))) |
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159 goto finally; |
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160 ret = Py_BuildValue("(OO)", f1, f2); |
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161 |
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162 finally: |
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163 Py_XDECREF(f1); |
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164 Py_XDECREF(f2); |
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165 return ret; |
| 1179 | 166 } |
| 167 | |
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168 static PyObject * |
| 13503 | 169 svc_UnlockCaptureData(captureobject *self, PyObject *args) |
| 1179 | 170 { |
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171 if (!PyArg_Parse(args, "")) |
| 1179 | 172 return NULL; |
| 173 | |
| 174 if (!self->ob_mustunlock) { | |
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175 PyErr_SetString(SvError, "buffer should not be unlocked"); |
| 1179 | 176 return NULL; |
| 177 } | |
| 178 | |
| 179 if (svUnlockCaptureData(self->ob_svideo->ob_svideo, self->ob_capture)) | |
| 180 return sv_error(); | |
| 181 | |
| 182 self->ob_mustunlock = 0; | |
| 183 | |
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184 Py_INCREF(Py_None); |
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185 return Py_None; |
| 1179 | 186 } |
| 187 | |
| 188 #ifdef USE_GL | |
| 189 #include <gl.h> | |
| 190 | |
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191 static PyObject * |
| 13503 | 192 svc_lrectwrite(captureobject *self, PyObject *args) |
| 1179 | 193 { |
| 194 Screencoord x1, x2, y1, y2; | |
| 195 | |
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196 if (!PyArg_Parse(args, "(hhhh)", &x1, &x2, &y1, &y2)) |
| 1179 | 197 return NULL; |
| 198 | |
| 199 lrectwrite(x1, x2, y1, y2, (unsigned long *) self->ob_capture); | |
| 200 | |
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201 Py_INCREF(Py_None); |
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202 return Py_None; |
| 1179 | 203 } |
| 204 #endif | |
| 205 | |
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206 static PyObject * |
| 13503 | 207 svc_writefile(captureobject *self, PyObject *args) |
| 1179 | 208 { |
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209 PyObject *file; |
| 1179 | 210 int size; |
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211 FILE* fp; |
| 1179 | 212 |
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213 if (!PyArg_Parse(args, "O", &file)) |
| 1179 | 214 return NULL; |
| 215 | |
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216 if (!PyFile_Check(file)) { |
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217 PyErr_SetString(SvError, "not a file object"); |
| 1179 | 218 return NULL; |
| 219 } | |
| 220 | |
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221 if (!(fp = PyFile_AsFile(file))) |
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222 return NULL; |
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223 |
| 1179 | 224 size = self->ob_info.width * self->ob_info.height; |
| 225 | |
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226 if (fwrite(self->ob_capture, sizeof(long), size, fp) != size) { |
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227 PyErr_SetString(SvError, "writing failed"); |
| 1179 | 228 return NULL; |
| 229 } | |
| 230 | |
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231 Py_INCREF(Py_None); |
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232 return Py_None; |
| 1179 | 233 } |
| 234 | |
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235 static PyObject * |
| 13503 | 236 svc_FindVisibleRegion(captureobject *self, PyObject *args) |
| 1179 | 237 { |
| 238 void *visible; | |
| 239 int width; | |
| 240 | |
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241 if (!PyArg_Parse(args, "")) |
| 1179 | 242 return NULL; |
| 243 | |
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244 if (svFindVisibleRegion(self->ob_svideo->ob_svideo, |
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245 self->ob_capture, &visible, |
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246 self->ob_info.width)) |
| 1179 | 247 return sv_error(); |
| 248 | |
| 249 if (visible == NULL) { | |
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250 PyErr_SetString(SvError, "data in wrong format"); |
| 1179 | 251 return NULL; |
| 252 } | |
| 253 | |
| 254 return newcaptureobject(self->ob_svideo, visible, 0); | |
| 255 } | |
| 256 | |
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257 static PyMethodDef capture_methods[] = { |
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258 {"YUVtoRGB", (PyCFunction)svc_YUVtoRGB}, |
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259 {"RGB8toRGB32", (PyCFunction)svc_RGB8toRGB32}, |
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260 {"InterleaveFields", (PyCFunction)svc_InterleaveFields}, |
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261 {"UnlockCaptureData", (PyCFunction)svc_UnlockCaptureData}, |
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262 {"FindVisibleRegion", (PyCFunction)svc_FindVisibleRegion}, |
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263 {"GetFields", (PyCFunction)svc_GetFields}, |
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264 {"YUVtoYUV422DC", (PyCFunction)svc_YUVtoYUV422DC}, |
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265 {"YUVtoYUV422DC_quarter",(PyCFunction)svc_YUVtoYUV422DC_quarter}, |
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266 {"YUVtoYUV422DC_sixteenth",(PyCFunction)svc_YUVtoYUV422DC_sixteenth}, |
| 1179 | 267 #ifdef USE_GL |
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268 {"lrectwrite", (PyCFunction)svc_lrectwrite}, |
| 1179 | 269 #endif |
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270 {"writefile", (PyCFunction)svc_writefile}, |
| 1179 | 271 {NULL, NULL} /* sentinel */ |
| 272 }; | |
| 273 | |
| 274 static void | |
| 13503 | 275 capture_dealloc(captureobject *self) |
| 1179 | 276 { |
| 277 if (self->ob_capture != NULL) { | |
| 278 if (self->ob_mustunlock) | |
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279 (void)svUnlockCaptureData(self->ob_svideo->ob_svideo, |
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280 self->ob_capture); |
| 1179 | 281 self->ob_capture = NULL; |
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282 Py_DECREF(self->ob_svideo); |
| 1179 | 283 self->ob_svideo = NULL; |
| 284 } | |
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285 PyObject_Del(self); |
| 1179 | 286 } |
| 287 | |
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288 static PyObject * |
| 13503 | 289 capture_getattr(svobject *self, char *name) |
| 1179 | 290 { |
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291 return Py_FindMethod(capture_methods, (PyObject *)self, name); |
| 1179 | 292 } |
| 293 | |
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294 PyTypeObject Capturetype = { |
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295 PyObject_HEAD_INIT(&PyType_Type) |
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296 0, /*ob_size*/ |
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297 "capture", /*tp_name*/ |
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298 sizeof(captureobject), /*tp_size*/ |
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299 0, /*tp_itemsize*/ |
| 1179 | 300 /* methods */ |
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301 (destructor)capture_dealloc, /*tp_dealloc*/ |
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302 0, /*tp_print*/ |
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303 (getattrfunc)capture_getattr, /*tp_getattr*/ |
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304 0, /*tp_setattr*/ |
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305 0, /*tp_compare*/ |
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306 0, /*tp_repr*/ |
| 1179 | 307 }; |
| 308 | |
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309 static PyObject * |
| 13503 | 310 newcaptureobject(svobject *self, void *ptr, int mustunlock) |
| 1179 | 311 { |
| 312 captureobject *p; | |
| 313 | |
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314 p = PyObject_New(captureobject, &Capturetype); |
| 1179 | 315 if (p == NULL) |
| 316 return NULL; | |
| 317 p->ob_svideo = self; | |
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318 Py_INCREF(self); |
| 1179 | 319 p->ob_capture = ptr; |
| 320 p->ob_mustunlock = mustunlock; | |
| 321 p->ob_info = self->ob_info; | |
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322 return (PyObject *) p; |
| 1179 | 323 } |
| 324 | |
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325 static PyObject * |
| 13503 | 326 sv_GetCaptureData(svobject *self, PyObject *args) |
| 1179 | 327 { |
| 328 void *ptr; | |
| 329 long fieldID; | |
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330 PyObject *res, *c; |
| 1179 | 331 |
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332 if (!PyArg_Parse(args, "")) |
| 1179 | 333 return NULL; |
| 334 | |
| 335 if (svGetCaptureData(self->ob_svideo, &ptr, &fieldID)) | |
| 336 return sv_error(); | |
| 337 | |
| 338 if (ptr == NULL) { | |
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339 PyErr_SetString(SvError, "no data available"); |
| 1179 | 340 return NULL; |
| 341 } | |
| 342 | |
| 343 c = newcaptureobject(self, ptr, 1); | |
| 344 if (c == NULL) | |
| 345 return NULL; | |
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346 res = Py_BuildValue("(Oi)", c, fieldID); |
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347 Py_DECREF(c); |
| 1179 | 348 return res; |
| 349 } | |
| 350 | |
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351 static PyObject * |
| 13503 | 352 sv_BindGLWindow(svobject *self, PyObject *args) |
| 1179 | 353 { |
| 354 long wid; | |
| 355 int mode; | |
| 356 | |
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357 if (!PyArg_Parse(args, "(ii)", &wid, &mode)) |
| 1179 | 358 return NULL; |
| 359 | |
| 360 if (svBindGLWindow(self->ob_svideo, wid, mode)) | |
| 361 return sv_error(); | |
| 362 | |
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363 Py_INCREF(Py_None); |
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364 return Py_None; |
| 1179 | 365 } |
| 366 | |
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367 static PyObject * |
| 13503 | 368 sv_EndContinuousCapture(svobject *self, PyObject *args) |
| 1179 | 369 { |
| 370 | |
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371 if (!PyArg_Parse(args, "")) |
| 1179 | 372 return NULL; |
| 373 | |
| 374 if (svEndContinuousCapture(self->ob_svideo)) | |
| 375 return sv_error(); | |
| 376 | |
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377 Py_INCREF(Py_None); |
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378 return Py_None; |
| 1179 | 379 } |
| 380 | |
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381 static PyObject * |
| 13503 | 382 sv_IsVideoDisplayed(svobject *self, PyObject *args) |
| 1179 | 383 { |
| 384 int v; | |
| 385 | |
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386 if (!PyArg_Parse(args, "")) |
| 1179 | 387 return NULL; |
| 388 | |
| 389 v = svIsVideoDisplayed(self->ob_svideo); | |
| 390 if (v == -1) | |
| 391 return sv_error(); | |
| 392 | |
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393 return PyInt_FromLong((long) v); |
| 1179 | 394 } |
| 395 | |
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396 static PyObject * |
| 13503 | 397 sv_OutputOffset(svobject *self, PyObject *args) |
| 1179 | 398 { |
| 399 int x_offset; | |
| 400 int y_offset; | |
| 401 | |
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402 if (!PyArg_Parse(args, "(ii)", &x_offset, &y_offset)) |
| 1179 | 403 return NULL; |
| 404 | |
| 405 if (svOutputOffset(self->ob_svideo, x_offset, y_offset)) | |
| 406 return sv_error(); | |
| 407 | |
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408 Py_INCREF(Py_None); |
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409 return Py_None; |
| 1179 | 410 } |
| 411 | |
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412 static PyObject * |
| 13503 | 413 sv_PutFrame(svobject *self, PyObject *args) |
| 1179 | 414 { |
| 415 char *buffer; | |
| 416 | |
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417 if (!PyArg_Parse(args, "s", &buffer)) |
| 1179 | 418 return NULL; |
| 419 | |
| 420 if (svPutFrame(self->ob_svideo, buffer)) | |
| 421 return sv_error(); | |
| 422 | |
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423 Py_INCREF(Py_None); |
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424 return Py_None; |
| 1179 | 425 } |
| 426 | |
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427 static PyObject * |
| 13503 | 428 sv_QuerySize(svobject *self, PyObject *args) |
| 1179 | 429 { |
| 430 int w; | |
| 431 int h; | |
| 432 int rw; | |
| 433 int rh; | |
| 434 | |
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435 if (!PyArg_Parse(args, "(ii)", &w, &h)) |
| 1179 | 436 return NULL; |
| 437 | |
| 438 if (svQuerySize(self->ob_svideo, w, h, &rw, &rh)) | |
| 439 return sv_error(); | |
| 440 | |
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441 return Py_BuildValue("(ii)", (long) rw, (long) rh); |
| 1179 | 442 } |
| 443 | |
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|
444 static PyObject * |
| 13503 | 445 sv_SetSize(svobject *self, PyObject *args) |
| 1179 | 446 { |
| 447 int w; | |
| 448 int h; | |
| 449 | |
|
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|
450 if (!PyArg_Parse(args, "(ii)", &w, &h)) |
| 1179 | 451 return NULL; |
| 452 | |
| 453 if (svSetSize(self->ob_svideo, w, h)) | |
| 454 return sv_error(); | |
| 455 | |
|
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|
456 Py_INCREF(Py_None); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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|
457 return Py_None; |
| 1179 | 458 } |
| 459 | |
|
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|
460 static PyObject * |
| 13503 | 461 sv_SetStdDefaults(svobject *self, PyObject *args) |
| 1179 | 462 { |
| 463 | |
|
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|
464 if (!PyArg_Parse(args, "")) |
| 1179 | 465 return NULL; |
| 466 | |
| 467 if (svSetStdDefaults(self->ob_svideo)) | |
| 468 return sv_error(); | |
| 469 | |
|
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|
470 Py_INCREF(Py_None); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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|
471 return Py_None; |
| 1179 | 472 } |
| 473 | |
|
4712
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|
474 static PyObject * |
| 13503 | 475 sv_UseExclusive(svobject *self, PyObject *args) |
| 1179 | 476 { |
| 477 boolean onoff; | |
| 478 int mode; | |
| 479 | |
|
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|
480 if (!PyArg_Parse(args, "(ii)", &onoff, &mode)) |
| 1179 | 481 return NULL; |
| 482 | |
| 483 if (svUseExclusive(self->ob_svideo, onoff, mode)) | |
| 484 return sv_error(); | |
| 485 | |
|
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|
486 Py_INCREF(Py_None); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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|
487 return Py_None; |
| 1179 | 488 } |
| 489 | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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|
490 static PyObject * |
| 13503 | 491 sv_WindowOffset(svobject *self, PyObject *args) |
| 1179 | 492 { |
| 493 int x_offset; | |
| 494 int y_offset; | |
| 495 | |
|
4712
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|
496 if (!PyArg_Parse(args, "(ii)", &x_offset, &y_offset)) |
| 1179 | 497 return NULL; |
| 498 | |
| 499 if (svWindowOffset(self->ob_svideo, x_offset, y_offset)) | |
| 500 return sv_error(); | |
| 501 | |
|
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|
502 Py_INCREF(Py_None); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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|
503 return Py_None; |
| 1179 | 504 } |
| 505 | |
|
4712
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Renamed, and scrutinized for missed potential error conditions.
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|
506 static PyObject * |
| 13503 | 507 sv_CaptureBurst(svobject *self, PyObject *args) |
| 1179 | 508 { |
| 509 int bytes, i; | |
| 510 svCaptureInfo info; | |
| 511 void *bitvector = NULL; | |
|
4712
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|
512 PyObject *videodata = NULL; |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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|
513 PyObject *bitvecobj = NULL; |
|
4762
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Corrected two errors introduced by the renaming (and the subsequent
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|
514 PyObject *res = NULL; |
|
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|
515 static PyObject *evenitem, *odditem; |
| 1179 | 516 |
|
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|
517 if (!PyArg_Parse(args, "(iiiii)", &info.format, |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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|
518 &info.width, &info.height, |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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|
519 &info.size, &info.samplingrate)) |
| 1179 | 520 return NULL; |
| 521 | |
| 522 switch (info.format) { | |
| 523 case SV_RGB8_FRAMES: | |
| 524 bitvector = malloc(SV_BITVEC_SIZE(info.size)); | |
| 525 break; | |
| 526 case SV_YUV411_FRAMES_AND_BLANKING_BUFFER: | |
| 527 break; | |
| 528 default: | |
|
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Renamed, and scrutinized for missed potential error conditions.
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|
529 PyErr_SetString(SvError, "illegal format specified"); |
| 1179 | 530 return NULL; |
| 531 } | |
| 532 | |
| 533 if (svQueryCaptureBufferSize(self->ob_svideo, &info, &bytes)) { | |
|
4712
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Renamed, and scrutinized for missed potential error conditions.
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|
534 res = sv_error(); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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|
535 goto finally; |
| 1179 | 536 } |
| 537 | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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|
538 if (!(videodata = PyString_FromStringAndSize(NULL, bytes))) |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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|
539 goto finally; |
| 1179 | 540 |
| 541 /* XXX -- need to do something about the bitvector */ | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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changeset
|
542 { |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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diff
changeset
|
543 char* str = PyString_AsString(videodata); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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diff
changeset
|
544 if (!str) |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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diff
changeset
|
545 goto finally; |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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4503
diff
changeset
|
546 |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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changeset
|
547 if (svCaptureBurst(self->ob_svideo, &info, str, bitvector)) { |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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diff
changeset
|
548 res = sv_error(); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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diff
changeset
|
549 goto finally; |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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diff
changeset
|
550 } |
| 1179 | 551 } |
| 552 | |
| 553 if (bitvector) { | |
| 554 if (evenitem == NULL) { | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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|
555 if (!(evenitem = PyInt_FromLong(0))) |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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diff
changeset
|
556 goto finally; |
| 1179 | 557 } |
| 558 if (odditem == NULL) { | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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|
559 if (!(odditem = PyInt_FromLong(1))) |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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4503
diff
changeset
|
560 goto finally; |
| 1179 | 561 } |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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diff
changeset
|
562 if (!(bitvecobj = PyTuple_New(2 * info.size))) |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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4503
diff
changeset
|
563 goto finally; |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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4503
diff
changeset
|
564 |
| 1179 | 565 for (i = 0; i < 2 * info.size; i++) { |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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diff
changeset
|
566 int sts; |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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diff
changeset
|
567 |
| 1179 | 568 if (SV_GET_FIELD(bitvector, i) == SV_EVEN_FIELD) { |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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4503
diff
changeset
|
569 Py_INCREF(evenitem); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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4503
diff
changeset
|
570 sts = PyTuple_SetItem(bitvecobj, i, evenitem); |
| 1179 | 571 } else { |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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4503
diff
changeset
|
572 Py_INCREF(odditem); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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changeset
|
573 sts = PyTuple_SetItem(bitvecobj, i, odditem); |
| 1179 | 574 } |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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diff
changeset
|
575 if (sts < 0) |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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4503
diff
changeset
|
576 goto finally; |
| 1179 | 577 } |
| 578 } else { | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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4503
diff
changeset
|
579 bitvecobj = Py_None; |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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diff
changeset
|
580 Py_INCREF(Py_None); |
| 1179 | 581 } |
| 582 | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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4503
diff
changeset
|
583 res = Py_BuildValue("((iiiii)OO)", info.format, |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
584 info.width, info.height, |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
585 info.size, info.samplingrate, |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
586 videodata, bitvecobj); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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4503
diff
changeset
|
587 |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
588 finally: |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
589 if (bitvector) |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
590 free(bitvector); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
591 |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
592 Py_XDECREF(videodata); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
593 Py_XDECREF(bitvecobj); |
| 1179 | 594 return res; |
| 595 } | |
| 596 | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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diff
changeset
|
597 static PyObject * |
| 13503 | 598 sv_CaptureOneFrame(svobject *self, PyObject *args) |
| 1179 | 599 { |
| 600 svCaptureInfo info; | |
| 601 int format, width, height; | |
| 602 int bytes; | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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4503
diff
changeset
|
603 PyObject *videodata = NULL; |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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diff
changeset
|
604 PyObject *res = NULL; |
|
4762
f926263fb654
Corrected two errors introduced by the renaming (and the subsequent
Guido van Rossum <guido@python.org>
parents:
4712
diff
changeset
|
605 char *str; |
| 1179 | 606 |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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4503
diff
changeset
|
607 if (!PyArg_Parse(args, "(iii)", &format, &width, &height)) |
| 1179 | 608 return NULL; |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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diff
changeset
|
609 |
| 1179 | 610 info.format = format; |
| 611 info.width = width; | |
| 612 info.height = height; | |
| 613 info.size = 0; | |
| 614 info.samplingrate = 0; | |
| 615 if (svQueryCaptureBufferSize(self->ob_svideo, &info, &bytes)) | |
| 616 return sv_error(); | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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parents:
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diff
changeset
|
617 |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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4503
diff
changeset
|
618 if (!(videodata = PyString_FromStringAndSize(NULL, bytes))) |
| 1179 | 619 return NULL; |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
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diff
changeset
|
620 |
|
4762
f926263fb654
Corrected two errors introduced by the renaming (and the subsequent
Guido van Rossum <guido@python.org>
parents:
4712
diff
changeset
|
621 str = PyString_AsString(videodata); |
|
f926263fb654
Corrected two errors introduced by the renaming (and the subsequent
Guido van Rossum <guido@python.org>
parents:
4712
diff
changeset
|
622 if (!str) |
|
f926263fb654
Corrected two errors introduced by the renaming (and the subsequent
Guido van Rossum <guido@python.org>
parents:
4712
diff
changeset
|
623 goto finally; |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
624 |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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4503
diff
changeset
|
625 if (svCaptureOneFrame(self->ob_svideo, format, &width, &height, str)) { |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
626 res = sv_error(); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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4503
diff
changeset
|
627 goto finally; |
| 1179 | 628 } |
| 629 | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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parents:
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diff
changeset
|
630 res = Py_BuildValue("(iiO)", width, height, videodata); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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diff
changeset
|
631 |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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parents:
4503
diff
changeset
|
632 finally: |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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parents:
4503
diff
changeset
|
633 Py_XDECREF(videodata); |
| 1179 | 634 return res; |
| 635 } | |
| 636 | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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4503
diff
changeset
|
637 static PyObject * |
| 13503 | 638 sv_InitContinuousCapture(svobject *self, PyObject *args) |
| 1179 | 639 { |
| 640 svCaptureInfo info; | |
| 641 | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
642 if (!PyArg_Parse(args, "(iiiii)", &info.format, |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
643 &info.width, &info.height, |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
644 &info.size, &info.samplingrate)) |
| 1179 | 645 return NULL; |
| 646 | |
| 647 if (svInitContinuousCapture(self->ob_svideo, &info)) | |
| 648 return sv_error(); | |
| 649 | |
| 650 self->ob_info = info; | |
| 651 | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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4503
diff
changeset
|
652 return Py_BuildValue("(iiiii)", info.format, info.width, info.height, |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
653 info.size, info.samplingrate); |
| 1179 | 654 } |
| 655 | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
656 static PyObject * |
| 13503 | 657 sv_LoadMap(svobject *self, PyObject *args) |
| 1179 | 658 { |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
659 PyObject *rgb; |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
660 PyObject *res = NULL; |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
661 rgb_tuple *mapp = NULL; |
| 1179 | 662 int maptype; |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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|
663 int i, j; /* indices */ |
| 1179 | 664 |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
665 if (!PyArg_Parse(args, "(iO)", &maptype, &rgb)) |
| 1179 | 666 return NULL; |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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diff
changeset
|
667 |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
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diff
changeset
|
668 if (!PyList_Check(rgb) || PyList_Size(rgb) != 256) { |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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diff
changeset
|
669 PyErr_BadArgument(); |
| 1179 | 670 return NULL; |
| 671 } | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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diff
changeset
|
672 |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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changeset
|
673 if (!(mapp = PyMem_NEW(rgb_tuple, 256))) |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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|
674 return PyErr_NoMemory(); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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diff
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|
675 |
| 1179 | 676 for (i = 0; i < 256; i++) { |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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|
677 PyObject* v = PyList_GetItem(rgb, i); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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diff
changeset
|
678 if (!v) |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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diff
changeset
|
679 goto finally; |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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diff
changeset
|
680 |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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|
681 if (!PyTuple_Check(v) || PyTuple_Size(v) != 3) { |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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|
682 PyErr_BadArgument(); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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|
683 goto finally; |
| 1179 | 684 } |
| 685 for (j = 0; j < 3; j++) { | |
|
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0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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diff
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|
686 PyObject* cell = PyTuple_GetItem(v, j); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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diff
changeset
|
687 if (!cell) |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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parents:
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diff
changeset
|
688 goto finally; |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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diff
changeset
|
689 |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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diff
changeset
|
690 if (!PyInt_Check(cell)) { |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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diff
changeset
|
691 PyErr_BadArgument(); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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diff
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|
692 goto finally; |
| 1179 | 693 } |
| 694 switch (j) { | |
|
4712
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Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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diff
changeset
|
695 case 0: mapp[i].red = PyInt_AsLong(cell); break; |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
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diff
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|
696 case 1: mapp[i].blue = PyInt_AsLong(cell); break; |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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diff
changeset
|
697 case 2: mapp[i].green = PyInt_AsLong(cell); break; |
| 1179 | 698 } |
|
4712
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Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
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diff
changeset
|
699 if (PyErr_Occurred()) |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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changeset
|
700 goto finally; |
| 1179 | 701 } |
| 702 } | |
| 703 | |
| 704 if (svLoadMap(self->ob_svideo, maptype, mapp)) { | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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diff
changeset
|
705 res = sv_error(); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
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diff
changeset
|
706 goto finally; |
| 1179 | 707 } |
| 708 | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
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parents:
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diff
changeset
|
709 Py_INCREF(Py_None); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
710 res = Py_None; |
| 1179 | 711 |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
712 finally: |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
713 PyMem_DEL(mapp); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
714 return res; |
| 1179 | 715 } |
| 716 | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
717 static PyObject * |
| 13503 | 718 sv_CloseVideo(svobject *self, PyObject *args) |
| 1179 | 719 { |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
720 if (!PyArg_Parse(args, "")) |
| 1179 | 721 return NULL; |
| 722 | |
| 723 if (svCloseVideo(self->ob_svideo)) | |
| 724 return sv_error(); | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
725 |
| 1179 | 726 self->ob_svideo = NULL; |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
727 Py_INCREF(Py_None); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
728 return Py_None; |
| 1179 | 729 } |
| 730 | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
731 static PyObject * |
| 13503 | 732 doParams(svobject *self, PyObject *args, |
| 733 int (*func)(SV_nodeP, long *, int), int modified) | |
| 1179 | 734 { |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
735 PyObject *list; |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
736 PyObject *res = NULL; |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
737 long *PVbuffer = NULL; |
| 1179 | 738 long length; |
| 739 int i; | |
| 740 | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
741 if (!PyArg_Parse(args, "O", &list)) |
| 1179 | 742 return NULL; |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
743 |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
744 if (!PyList_Check(list)) { |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
745 PyErr_BadArgument(); |
| 1179 | 746 return NULL; |
| 747 } | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
748 |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
749 if ((length = PyList_Size(list)) < 0) |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
750 return NULL; |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
751 |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
752 PVbuffer = PyMem_NEW(long, length); |
| 1179 | 753 if (PVbuffer == NULL) |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
754 return PyErr_NoMemory(); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
755 |
| 1179 | 756 for (i = 0; i < length; i++) { |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
757 PyObject *v = PyList_GetItem(list, i); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
758 if (!v) |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
759 goto finally; |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
760 |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
761 if (!PyInt_Check(v)) { |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
762 PyErr_BadArgument(); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
763 goto finally; |
| 1179 | 764 } |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
765 PVbuffer[i] = PyInt_AsLong(v); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
766 /* can't just test the return value, because what if the |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
767 value was -1?! |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
768 */ |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
769 if (PVbuffer[i] == -1 && PyErr_Occurred()) |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
770 goto finally; |
| 1179 | 771 } |
| 772 | |
| 773 if ((*func)(self->ob_svideo, PVbuffer, length)) { | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
774 res = sv_error(); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
775 goto finally; |
| 1179 | 776 } |
| 777 | |
| 778 if (modified) { | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
779 for (i = 0; i < length; i++) { |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
780 PyObject* v = PyInt_FromLong(PVbuffer[i]); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
781 if (!v || PyList_SetItem(list, i, v) < 0) |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
782 goto finally; |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
783 } |
| 1179 | 784 } |
| 785 | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
786 Py_INCREF(Py_None); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
787 res = Py_None; |
| 1179 | 788 |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
789 finally: |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
790 PyMem_DEL(PVbuffer); |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
791 return res; |
| 1179 | 792 } |
| 793 | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
794 static PyObject * |
| 13503 | 795 sv_GetParam(PyObject *self, PyObject *args) |
| 1179 | 796 { |
| 797 return doParams(self, args, svGetParam, 1); | |
| 798 } | |
| 799 | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
800 static PyObject * |
| 13503 | 801 sv_GetParamRange(PyObject *self, PyObject *args) |
| 1179 | 802 { |
| 803 return doParams(self, args, svGetParamRange, 1); | |
| 804 } | |
| 805 | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
806 static PyObject * |
| 13503 | 807 sv_SetParam(PyObject *self, PyObject *args) |
| 1179 | 808 { |
| 809 return doParams(self, args, svSetParam, 0); | |
| 810 } | |
| 811 | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
812 static PyMethodDef svideo_methods[] = { |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
813 {"BindGLWindow", (PyCFunction)sv_BindGLWindow}, |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
814 {"EndContinuousCapture",(PyCFunction)sv_EndContinuousCapture}, |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
815 {"IsVideoDisplayed", (PyCFunction)sv_IsVideoDisplayed}, |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
816 {"OutputOffset", (PyCFunction)sv_OutputOffset}, |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
817 {"PutFrame", (PyCFunction)sv_PutFrame}, |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
818 {"QuerySize", (PyCFunction)sv_QuerySize}, |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
819 {"SetSize", (PyCFunction)sv_SetSize}, |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
820 {"SetStdDefaults", (PyCFunction)sv_SetStdDefaults}, |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
821 {"UseExclusive", (PyCFunction)sv_UseExclusive}, |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
822 {"WindowOffset", (PyCFunction)sv_WindowOffset}, |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
823 {"InitContinuousCapture",(PyCFunction)sv_InitContinuousCapture}, |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
824 {"CaptureBurst", (PyCFunction)sv_CaptureBurst}, |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
825 {"CaptureOneFrame", (PyCFunction)sv_CaptureOneFrame}, |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
826 {"GetCaptureData", (PyCFunction)sv_GetCaptureData}, |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
827 {"CloseVideo", (PyCFunction)sv_CloseVideo}, |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
828 {"LoadMap", (PyCFunction)sv_LoadMap}, |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
829 {"GetParam", (PyCFunction)sv_GetParam}, |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
830 {"GetParamRange", (PyCFunction)sv_GetParamRange}, |
|
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
831 {"SetParam", (PyCFunction)sv_SetParam}, |
| 1179 | 832 {NULL, NULL} /* sentinel */ |
| 833 }; | |
| 834 | |
|
4712
0253ef267b68
Renamed, and scrutinized for missed potential error conditions.
Barry Warsaw <barry@python.org>
parents:
4503
diff
changeset
|
835 static PyObject * |
| 13503 | 836 sv_conversion(PyObject *self, PyObject *args, void (*function)(), |
| 837 int inputfactor, float factor) | |
| 1179 | 838 { |
| 839 int invert, width, height, inputlength; | |
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840 char *input, *str; |
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841 PyObject *output; |
| 1179 | 842 |
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843 if (!PyArg_Parse(args, "(is#ii)", &invert, |
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844 &input, &inputlength, &width, &height)) |
| 1179 | 845 return NULL; |
| 846 | |
| 847 if (width * height * inputfactor > inputlength) { | |
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848 PyErr_SetString(SvError, "input buffer not long enough"); |
| 1179 | 849 return NULL; |
| 850 } | |
| 851 | |
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852 if (!(output = PyString_FromStringAndSize(NULL, |
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853 (int)(width * height * factor)))) |
| 1179 | 854 return NULL; |
| 855 | |
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856 str = PyString_AsString(output); |
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857 if (!str) { |
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858 Py_DECREF(output); |
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859 return NULL; |
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860 } |
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861 (*function)(invert, input, str, width, height); |
| 1179 | 862 |
| 863 return output; | |
| 864 } | |
| 865 | |
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866 static PyObject * |
| 13503 | 867 sv_InterleaveFields(PyObject *self, PyObject *args) |
| 1179 | 868 { |
|
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869 return sv_conversion(self, args, svInterleaveFields, 1, 1.0); |
| 1179 | 870 } |
| 871 | |
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872 static PyObject * |
| 13503 | 873 sv_RGB8toRGB32(PyObject *self, PyObject *args) |
| 1179 | 874 { |
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875 return sv_conversion(self, args, svRGB8toRGB32, 1, (float) sizeof(long)); |
| 1179 | 876 } |
| 877 | |
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878 static PyObject * |
| 13503 | 879 sv_YUVtoRGB(PyObject *self, PyObject *args) |
| 1179 | 880 { |
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881 return sv_conversion(self, args, svYUVtoRGB, 2, (float) sizeof(long)); |
| 1179 | 882 } |
| 883 | |
| 884 static void | |
| 13503 | 885 svideo_dealloc(svobject *self) |
| 1179 | 886 { |
| 887 if (self->ob_svideo != NULL) | |
| 888 (void) svCloseVideo(self->ob_svideo); | |
|
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889 PyObject_Del(self); |
| 1179 | 890 } |
| 891 | |
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892 static PyObject * |
| 13503 | 893 svideo_getattr(svobject *self, char *name) |
| 1179 | 894 { |
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895 return Py_FindMethod(svideo_methods, (PyObject *)self, name); |
| 1179 | 896 } |
| 897 | |
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898 PyTypeObject Svtype = { |
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899 PyObject_HEAD_INIT(&PyType_Type) |
| 1179 | 900 0, /*ob_size*/ |
| 901 "sv", /*tp_name*/ | |
| 902 sizeof(svobject), /*tp_size*/ | |
| 903 0, /*tp_itemsize*/ | |
| 904 /* methods */ | |
|
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905 (destructor)svideo_dealloc, /*tp_dealloc*/ |
| 1179 | 906 0, /*tp_print*/ |
|
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907 (getattrfunc)svideo_getattr, /*tp_getattr*/ |
| 1179 | 908 0, /*tp_setattr*/ |
| 909 0, /*tp_compare*/ | |
| 910 0, /*tp_repr*/ | |
| 911 }; | |
| 912 | |
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913 static PyObject * |
| 13503 | 914 newsvobject(SV_nodeP svp) |
| 1179 | 915 { |
| 916 svobject *p; | |
| 917 | |
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918 p = PyObject_New(svobject, &Svtype); |
| 1179 | 919 if (p == NULL) |
| 920 return NULL; | |
| 921 p->ob_svideo = svp; | |
| 922 p->ob_info.format = 0; | |
| 923 p->ob_info.size = 0; | |
| 924 p->ob_info.width = 0; | |
| 925 p->ob_info.height = 0; | |
| 926 p->ob_info.samplingrate = 0; | |
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927 return (PyObject *) p; |
| 1179 | 928 } |
| 929 | |
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930 static PyObject * |
| 13503 | 931 sv_OpenVideo(PyObject *self, PyObject *args) |
| 1179 | 932 { |
| 933 SV_nodeP svp; | |
| 934 | |
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935 if (!PyArg_Parse(args, "")) |
| 1179 | 936 return NULL; |
| 937 | |
| 938 svp = svOpenVideo(); | |
| 939 if (svp == NULL) | |
| 940 return sv_error(); | |
| 941 | |
| 942 return newsvobject(svp); | |
| 943 } | |
| 944 | |
|
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945 static PyMethodDef sv_methods[] = { |
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946 {"InterleaveFields", (PyCFunction)sv_InterleaveFields}, |
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947 {"RGB8toRGB32", (PyCFunction)sv_RGB8toRGB32}, |
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948 {"YUVtoRGB", (PyCFunction)sv_YUVtoRGB}, |
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949 {"OpenVideo", (PyCFunction)sv_OpenVideo}, |
| 1179 | 950 {NULL, NULL} /* Sentinel */ |
| 951 }; | |
| 952 | |
| 953 void | |
|
13651
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954 initsv(void) |
| 1179 | 955 { |
|
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956 PyObject *m, *d; |
| 1179 | 957 |
|
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958 m = Py_InitModule("sv", sv_methods); |
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959 d = PyModule_GetDict(m); |
| 1179 | 960 |
|
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961 SvError = PyErr_NewException("sv.error", NULL, NULL); |
|
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962 if (SvError == NULL || PyDict_SetItemString(d, "error", SvError) != 0) |
|
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963 return; |
| 1179 | 964 } |