Syntek USB Video Camera
stk11xx-bayer.c
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1
34#include <linux/module.h>
35#include <linux/init.h>
36#include <linux/kernel.h>
37#include <linux/version.h>
38#include <linux/errno.h>
39#include <linux/slab.h>
40#include <linux/kref.h>
41
42#include <linux/usb.h>
43#include <media/v4l2-common.h>
44
45#include "stk11xx.h"
46
47
48#define MAX(a,b) ((a)>(b)?(a):(b))
49#define MIN(a,b) ((a)<(b)?(a):(b))
50#define CLIP(a,low,high) MAX((low),MIN((high),(a)))
51
52
53void stk11xx_b2rgb24(uint8_t *, uint8_t *,
54 struct stk11xx_coord *, struct stk11xx_coord *,
55 const int, const int, const int);
56void stk11xx_b2rgb32(uint8_t *, uint8_t *,
57 struct stk11xx_coord *, struct stk11xx_coord *,
58 const int, const int, const int);
59void stk11xx_b2bgr24(uint8_t *, uint8_t *,
60 struct stk11xx_coord *, struct stk11xx_coord *,
61 const int, const int, const int);
62void stk11xx_b2bgr32(uint8_t *, uint8_t *,
63 struct stk11xx_coord *, struct stk11xx_coord *,
64 const int, const int, const int);
65
66void stk11xx_b2uyvy(uint8_t *, uint8_t *,
67 struct stk11xx_coord *, struct stk11xx_coord *,
68 const int, const int, const int);
69void stk11xx_b2yuyv(uint8_t *, uint8_t *,
70 struct stk11xx_coord *, struct stk11xx_coord *,
71 const int, const int, const int);
72
73
74void stk11xx_correct_brightness(uint8_t *, const int, const int,
75 const int, int, int);
76
77
78static signed short stk11xx_yuv_interp[256][8] = {
79 {0,0,0,0,0,0,0,0},{0,0,0,0,0,0,0,0},{0,1,0,0,0,1,0,0},{0,1,0,0,0,1,-1,0},
80 {1,2,0,0,-1,2,-1,0},{1,2,0,0,-1,2,-2,0},{1,3,0,-1,-1,3,-2,0},{2,3,0,-1,-2,3,-2,0},
81 {2,4,0,-1,-2,4,-3,0},{2,5,1,-1,-2,4,-3,0},{2,5,1,-1,-3,5,-4,0},{3,6,1,-1,-3,5,-4,0},
82 {3,6,1,-2,-3,6,-5,0},{3,7,1,-2,-4,6,-5,-1},{4,7,1,-2,-4,7,-5,-1},{4,8,1,-2,-4,7,-6,-1},
83 {4,9,1,-2,-5,8,-6,-1},{5,9,1,-2,-5,8,-7,-1},{5,10,2,-3,-5,9,-7,-1},{5,10,2,-3,-6,9,-7,-1},
84 {5,11,2,-3,-6,10,-8,-1},{6,11,2,-3,-6,10,-8,-1},{6,12,2,-3,-7,11,-9,-1},{6,13,2,-3,-7,11,-9,-1},
85 {7,13,2,-4,-7,12,-10,-1},{7,14,2,-4,-8,12,-10,-2},{7,14,2,-4,-8,13,-10,-2},{8,15,3,-4,-8,13,-11,-2},
86 {8,15,3,-4,-9,14,-11,-2},{8,16,3,-4,-9,14,-12,-2},{8,17,3,-5,-9,15,-12,-2},{9,17,3,-5,-10,15,-12,-2},
87 {9,18,3,-5,-10,16,-13,-2},{9,18,3,-5,-10,16,-13,-2},{10,19,3,-5,-11,17,-14,-2},{10,19,3,-5,-11,17,-14,-2},
88 {10,20,4,-6,-11,18,-15,-2},{11,20,4,-6,-12,18,-15,-3},{11,21,4,-6,-12,19,-15,-3},{11,22,4,-6,-12,19,-16,-3},
89 {11,22,4,-6,-13,20,-16,-3},{12,23,4,-6,-13,20,-17,-3},{12,23,4,-7,-13,21,-17,-3},{12,24,4,-7,-14,21,-18,-3},
90 {13,24,5,-7,-14,22,-18,-3},{13,25,5,-7,-14,22,-18,-3},{13,26,5,-7,-15,23,-19,-3},{14,26,5,-7,-15,23,-19,-3},
91 {14,27,5,-8,-15,24,-20,-3},{14,27,5,-8,-16,24,-20,-3},{14,28,5,-8,-16,25,-20,-4},{15,28,5,-8,-16,25,-21,-4},
92 {15,29,5,-8,-17,26,-21,-4},{15,30,6,-8,-17,26,-22,-4},{16,30,6,-9,-17,27,-22,-4},{16,31,6,-9,-18,27,-23,-4},
93 {16,31,6,-9,-18,28,-23,-4},{17,32,6,-9,-18,28,-23,-4},{17,32,6,-9,-19,29,-24,-4},{17,33,6,-9,-19,29,-24,-4},
94 {17,34,6,-10,-19,30,-25,-4},{18,34,6,-10,-20,30,-25,-4},{18,35,7,-10,-20,31,-25,-5},{18,35,7,-10,-20,31,-26,-5},
95 {19,36,7,-10,-21,32,-26,-5},{19,36,7,-10,-21,32,-27,-5},{19,37,7,-11,-21,33,-27,-5},{20,37,7,-11,-22,33,-28,-5},
96 {20,38,7,-11,-22,34,-28,-5},{20,39,7,-11,-22,34,-28,-5},{20,39,7,-11,-23,35,-29,-5},{21,40,8,-11,-23,35,-29,-5},
97 {21,40,8,-12,-23,36,-30,-5},{21,41,8,-12,-24,36,-30,-5},{22,41,8,-12,-24,37,-30,-6},{22,42,8,-12,-24,37,-31,-6},
98 {22,43,8,-12,-25,38,-31,-6},{23,43,8,-12,-25,38,-32,-6},{23,44,8,-13,-25,39,-32,-6},{23,44,9,-13,-26,39,-33,-6},
99 {23,45,9,-13,-26,40,-33,-6},{24,45,9,-13,-26,40,-33,-6},{24,46,9,-13,-27,41,-34,-6},{24,47,9,-14,-27,41,-34,-6},
100 {25,47,9,-14,-27,42,-35,-6},{25,48,9,-14,-28,42,-35,-6},{25,48,9,-14,-28,43,-36,-6},{26,49,9,-14,-28,43,-36,-7},
101 {26,49,10,-14,-29,44,-36,-7},{26,50,10,-15,-29,44,-37,-7},{26,51,10,-15,-29,45,-37,-7},{27,51,10,-15,-30,45,-38,-7},
102 {27,52,10,-15,-30,46,-38,-7},{27,52,10,-15,-30,46,-38,-7},{28,53,10,-15,-31,47,-39,-7},{28,53,10,-16,-31,47,-39,-7},
103 {28,54,10,-16,-31,48,-40,-7},{29,54,11,-16,-32,48,-40,-7},{29,55,11,-16,-32,49,-41,-7},{29,56,11,-16,-32,49,-41,-8},
104 {29,56,11,-16,-33,50,-41,-8},{30,57,11,-17,-33,50,-42,-8},{30,57,11,-17,-33,51,-42,-8},{30,58,11,-17,-34,51,-43,-8},
105 {31,58,11,-17,-34,52,-43,-8},{31,59,11,-17,-34,52,-43,-8},{31,60,12,-17,-35,53,-44,-8},{31,60,12,-18,-35,53,-44,-8},
106 {32,61,12,-18,-35,54,-45,-8},{32,61,12,-18,-36,54,-45,-8},{32,62,12,-18,-36,55,-46,-8},{33,62,12,-18,-36,55,-46,-9},
107 {33,63,12,-18,-37,56,-46,-9},{33,64,12,-19,-37,56,-47,-9},{34,64,12,-19,-37,57,-47,-9},{34,65,13,-19,-38,57,-48,-9},
108 {34,65,13,-19,-38,58,-48,-9},{34,66,13,-19,-38,58,-48,-9},{35,66,13,-19,-39,59,-49,-9},{35,67,13,-20,-39,59,-49,-9},
109 {35,68,13,-20,-39,60,-50,-9},{36,68,13,-20,-40,60,-50,-9},{36,69,13,-20,-40,61,-51,-9},{36,69,14,-20,-40,61,-51,-9},
110 {37,70,14,-20,-41,62,-51,-10},{37,70,14,-21,-41,62,-52,-10},{37,71,14,-21,-41,63,-52,-10},{37,72,14,-21,-42,63,-53,-10},
111 {38,72,14,-21,-42,64,-53,-10},{38,73,14,-21,-42,64,-54,-10},{38,73,14,-21,-43,65,-54,-10},{39,74,14,-22,-43,65,-54,-10},
112 {39,74,15,-22,-43,66,-55,-10},{39,75,15,-22,-44,66,-55,-10},{40,75,15,-22,-44,67,-56,-10},{40,76,15,-22,-44,67,-56,-10},
113 {40,77,15,-22,-45,68,-56,-11},{40,77,15,-23,-45,68,-57,-11},{41,78,15,-23,-45,69,-57,-11},{41,78,15,-23,-46,69,-58,-11},
114 {41,79,15,-23,-46,70,-58,-11},{42,79,16,-23,-46,70,-59,-11},{42,80,16,-23,-47,71,-59,-11},{42,81,16,-24,-47,71,-59,-11},
115 {43,81,16,-24,-47,72,-60,-11},{43,82,16,-24,-48,72,-60,-11},{43,82,16,-24,-48,73,-61,-11},{43,83,16,-24,-48,73,-61,-11},
116 {44,83,16,-24,-49,74,-61,-12},{44,84,16,-25,-49,74,-62,-12},{44,85,17,-25,-49,75,-62,-12},{45,85,17,-25,-50,75,-63,-12},
117 {45,86,17,-25,-50,76,-63,-12},{45,86,17,-25,-50,76,-64,-12},{46,87,17,-25,-51,77,-64,-12},{46,87,17,-26,-51,77,-64,-12},
118 {46,88,17,-26,-51,78,-65,-12},{46,89,17,-26,-52,78,-65,-12},{47,89,18,-26,-52,79,-66,-12},{47,90,18,-26,-52,79,-66,-12},
119 {47,90,18,-26,-53,80,-66,-13},{48,91,18,-27,-53,80,-67,-13},{48,91,18,-27,-53,81,-67,-13},{48,92,18,-27,-54,81,-68,-13},
120 {49,92,18,-27,-54,82,-68,-13},{49,93,18,-27,-54,82,-69,-13},{49,94,18,-28,-54,83,-69,-13},{49,94,19,-28,-55,83,-69,-13},
121 {50,95,19,-28,-55,84,-70,-13},{50,95,19,-28,-55,84,-70,-13},{50,96,19,-28,-56,85,-71,-13},{51,96,19,-28,-56,85,-71,-13},
122 {51,97,19,-29,-56,86,-72,-13},{51,98,19,-29,-57,86,-72,-14},{52,98,19,-29,-57,87,-72,-14},{52,99,19,-29,-57,87,-73,-14},
123 {52,99,20,-29,-58,88,-73,-14},{52,100,20,-29,-58,88,-74,-14},{53,100,20,-30,-58,89,-74,-14},{53,101,20,-30,-59,89,-74,-14},
124 {53,102,20,-30,-59,90,-75,-14},{54,102,20,-30,-59,90,-75,-14},{54,103,20,-30,-60,91,-76,-14},{54,103,20,-30,-60,91,-76,-14},
125 {55,104,20,-31,-60,92,-77,-14},{55,104,21,-31,-61,92,-77,-15},{55,105,21,-31,-61,93,-77,-15},{55,106,21,-31,-61,93,-78,-15},
126 {56,106,21,-31,-62,94,-78,-15},{56,107,21,-31,-62,94,-79,-15},{56,107,21,-32,-62,95,-79,-15},{57,108,21,-32,-63,95,-79,-15},
127 {57,108,21,-32,-63,96,-80,-15},{57,109,22,-32,-63,96,-80,-15},{58,109,22,-32,-64,97,-81,-15},{58,110,22,-32,-64,97,-81,-15},
128 {58,111,22,-33,-64,98,-82,-15},{58,111,22,-33,-65,98,-82,-16},{59,112,22,-33,-65,99,-82,-16},{59,112,22,-33,-65,99,-83,-16},
129 {59,113,22,-33,-66,100,-83,-16},{60,113,22,-33,-66,100,-84,-16},{60,114,23,-34,-66,101,-84,-16},{60,115,23,-34,-67,101,-84,-16},
130 {60,115,23,-34,-67,102,-85,-16},{61,116,23,-34,-67,102,-85,-16},{61,116,23,-34,-68,103,-86,-16},{61,117,23,-34,-68,103,-86,-16},
131 {62,117,23,-35,-68,104,-87,-16},{62,118,23,-35,-69,104,-87,-16},{62,119,23,-35,-69,105,-87,-17},{63,119,24,-35,-69,105,-88,-17},
132 {63,120,24,-35,-70,106,-88,-17},{63,120,24,-35,-70,106,-89,-17},{63,121,24,-36,-70,107,-89,-17},{64,121,24,-36,-71,107,-90,-17},
133 {64,122,24,-36,-71,108,-90,-17},{64,123,24,-36,-71,108,-90,-17},{65,123,24,-36,-72,109,-91,-17},{65,124,24,-36,-72,109,-91,-17},
134 {65,124,25,-37,-72,110,-92,-17},{66,125,25,-37,-73,110,-92,-17},{66,125,25,-37,-73,111,-92,-18},{66,126,25,-37,-73,111,-93,-18},
135 {66,127,25,-37,-74,112,-93,-18},{67,127,25,-37,-74,112,-94,-18},{67,128,25,-38,-74,113,-94,-18},{67,128,25,-38,-75,113,-95,-18},
136 {68,129,25,-38,-75,114,-95,-18},{68,129,26,-38,-75,114,-95,-18},{68,130,26,-38,-76,115,-96,-18},{69,130,26,-38,-76,115,-96,-18},
137 {69,131,26,-39,-76,116,-97,-18},{69,132,26,-39,-77,116,-97,-18},{69,132,26,-39,-77,117,-97,-19},{70,133,26,-39,-77,117,-98,-19},
138 {70,133,26,-39,-78,118,-98,-19},{70,134,27,-39,-78,118,-99,-19},{71,134,27,-40,-78,119,-99,-19},{71,135,27,-40,-79,119,-100,-19},
139 {71,136,27,-40,-79,120,-100,-19},{72,136,27,-40,-79,120,-100,-19},{72,137,27,-40,-80,121,-101,-19},{72,137,27,-40,-80,121,-101,-19},
140 {72,138,27,-41,-80,122,-102,-19},{73,138,27,-41,-81,122,-102,-19},{73,139,28,-41,-81,123,-103,-19},{73,140,28,-41,-81,123,-103,-20},
141 {74,140,28,-41,-82,124,-103,-20},{74,141,28,-42,-82,124,-104,-20},{74,141,28,-42,-82,125,-104,-20},{75,142,28,-42,-83,125,-105,-20},
142 {75,142,28,-42,-83,126,-105,-20},{75,143,28,-42,-83,126,-105,-20},{75,144,28,-42,-84,127,-106,-20},{76,144,29,-43,-84,127,-106,-20}
143};
144
145
155int stk11xx_decompress(struct usb_stk11xx *dev)
156{
157 int factor;
158
159 void *data;
160 void *image;
161 struct stk11xx_frame_buf *framebuf;
162
163 if (dev == NULL)
164 return -EFAULT;
165
166 framebuf = dev->read_frame;
167
168 if (framebuf == NULL)
169 return -EFAULT;
170
171 image = dev->image_data;
172 image += dev->images[dev->fill_image].offset;
173
174 data = framebuf->data;
175
176 switch (dev->resolution) {
177 case STK11XX_80x60:
178 factor = 8;
179 break;
180
181 case STK11XX_128x96:
182 factor = 5;
183 break;
184
185 case STK11XX_160x120:
186 factor = 4;
187 break;
188
189 case STK11XX_213x160:
190 factor = 3;
191 break;
192
193 case STK11XX_320x240:
194 factor = 2;
195 break;
196
197 case STK11XX_640x480:
198 factor = 1;
199 break;
200
201 case STK11XX_720x576:
202 case STK11XX_800x600:
203 factor = 2;
204 break;
205
206 case STK11XX_1024x768:
207 factor = 2;
208 break;
209
210 case STK11XX_1280x1024:
211 factor = 1;
212 break;
213
214 default:
215 return -EFAULT;
216 }
217
218
219 switch (dev->vsettings.palette) {
220 case STK11XX_PALETTE_RGB24:
221 stk11xx_b2rgb24(data, image, &dev->image, &dev->view,
222 dev->vsettings.hflip, dev->vsettings.vflip, factor);
223 break;
224
225 case STK11XX_PALETTE_RGB32:
226 stk11xx_b2rgb32(data, image, &dev->image, &dev->view,
227 dev->vsettings.hflip, dev->vsettings.vflip, factor);
228 break;
229
230 case STK11XX_PALETTE_BGR24:
231 stk11xx_b2bgr24(data, image, &dev->image, &dev->view,
232 dev->vsettings.hflip, dev->vsettings.vflip, factor);
233 break;
234
235 case STK11XX_PALETTE_BGR32:
236 stk11xx_b2bgr32(data, image, &dev->image, &dev->view,
237 dev->vsettings.hflip, dev->vsettings.vflip, factor);
238 break;
239
240 case STK11XX_PALETTE_UYVY:
241 stk11xx_b2uyvy(data, image, &dev->image, &dev->view,
242 dev->vsettings.hflip, dev->vsettings.vflip, factor);
243 break;
244
245 case STK11XX_PALETTE_YUYV:
246 stk11xx_b2yuyv(data, image, &dev->image, &dev->view,
247 dev->vsettings.hflip, dev->vsettings.vflip, factor);
248 break;
249 }
250
251 stk11xx_correct_brightness(image, dev->view.x, dev->view.y,
252 dev->vsettings.brightness, dev->vsettings.palette, dev->vsettings.depth);
253
254 return 0;
255}
256
257
271void stk11xx_correct_brightness(uint8_t *img, const int width, const int height,
272 const int brightness, int palette, int depth)
273{
274 int i;
275 int x;
276
277
278 switch (palette) {
279 case STK11XX_PALETTE_RGB24:
280 case STK11XX_PALETTE_BGR24:
281 case STK11XX_PALETTE_RGB32:
282 case STK11XX_PALETTE_BGR32:
283 depth = (depth == 24) ? 3 : 4;
284
285 if (brightness >= 32767) {
286 x = (brightness - 32767) / 256;
287
288 for (i = 0; i < (width * height * depth); i++) {
289 if ((*(img + i) + (unsigned char) x) > 255)
290 *(img + i) = 255;
291 else
292 *(img + i) += (unsigned char) x;
293 }
294 }
295 else {
296 x = (32767 - brightness) / 256;
297
298 for (i = 0; i < (width * height * depth); i++) {
299 if ((unsigned char) x > *(img + i))
300 *(img + i) = 0;
301 else
302 *(img + i) -= (unsigned char) x;
303 }
304 }
305
306 break;
307
308 case STK11XX_PALETTE_UYVY:
309 depth = 2;
310
311 if (brightness >= 32767) {
312 x = (brightness - 32767) / 256;
313
314 for (i = 1; i < (width * height * depth); i=i+depth) {
315 if ((*(img + i) + (unsigned char) x) > 255)
316 *(img + i) = 255;
317 else
318 *(img + i) += (unsigned char) x;
319 }
320 }
321 else {
322 x = (32767 - brightness) / 256;
323
324 for (i = 1; i < (width * height * depth); i=i+depth) {
325 if ((unsigned char) x > *(img + i))
326 *(img + i) = 0;
327 else
328 *(img + i) -= (unsigned char) x;
329 }
330 }
331
332 break;
333
334 case STK11XX_PALETTE_YUYV:
335 depth = 2;
336
337 if (brightness >= 32767) {
338 x = (brightness - 32767) / 256;
339
340 for (i = 0; i < (width * height * depth); i=i+depth) {
341 if ((*(img + i) + (unsigned char) x) > 255)
342 *(img + i) = 255;
343 else
344 *(img + i) += (unsigned char) x;
345 }
346 }
347 else {
348 x = (32767 - brightness) / 256;
349
350 for (i = 0; i < (width * height * depth); i=i+depth) {
351 if ((unsigned char) x > *(img + i))
352 *(img + i) = 0;
353 else
354 *(img + i) -= (unsigned char) x;
355 }
356 }
357
358 break;
359 }
360}
361
362
375void stk11xx_b2rgb24(uint8_t *bayer, uint8_t *rgb,
376 struct stk11xx_coord *image,
377 struct stk11xx_coord *view,
378 const int hflip, const int vflip,
379 const int factor) {
380 uint8_t *b;
381
382 int x, y; // Position in bayer image
383 int i, j; // Position in rgb image
384
385 int width = image->x;
386 int height = image->y;
387
388 int nwidth = width / factor;
389 int nheight = height / factor;
390
391 int offset;
392 int startx, stepx;
393 int starty, stepy;
394
395
396 // Calculate the initial position (on Y axis)
397 if (vflip) {
398 starty = height - 2;
399 stepy = -factor;
400 }
401 else {
402 starty = 0;
403 stepy = factor;
404 }
405
406 // Calculate the initial position (on X axis)
407 if (hflip) {
408 startx = width - 1;
409 stepx = -factor;
410 offset = width - 2;
411 }
412 else {
413 startx = 0;
414 stepx = factor;
415 offset = 1;
416 }
417
418
419 // Skip the first line
420 bayer += width;
421
422 // To center vertically the image in the view
423 rgb += ((view->y - nheight) / 2) * view->x * 3;
424
425 // To center horizontally the image in the view
426 rgb += ((view->x - nwidth) / 2) * 3;
427
428 // Clean the first line
429 memset(rgb, 0, nwidth * 3);
430 rgb += nwidth * 3;
431
432
433 // For each rgb line without the borders (first and last line)
434 for (j=0, y=starty; j<nheight-2; j++, y=y+stepy) {
435 // Go to the start of line
436 b = bayer + y * width + offset;
437
438 // Offset to center horizontally the image in the view
439 rgb += (view->x - nwidth) * 3;
440
441 if (y & 0x1) {
442 // Skip the first pixel
443 *rgb++ = 0;
444 *rgb++ = 0;
445 *rgb++ = 0;
446
447 // GBGBGB : Line process...
448 for (i=0, x=startx; i<nwidth-2; i++, x=x+stepx) {
449 if (x & 0x1) {
450 *rgb++ = (*(b-width-1) + *(b-width+1) + *(b+width-1) + *(b+width+1)) >> 2;
451 *rgb++ = (*(b-width) + *(b-1) + *(b+1) + *(b+width)) >> 2;
452 *rgb++ = *b;
453 }
454 else {
455 *rgb++ = (*(b-width) + *(b+width)) >> 1;
456 *rgb++ = *b;
457 *rgb++ = (*(b-1) + *(b+1)) >> 1;
458 }
459
460 b += stepx;
461 }
462
463 // Skip the last pixel
464 *rgb++ = 0;
465 *rgb++ = 0;
466 *rgb++ = 0;
467 }
468 else {
469 // Skip the first pixel
470 *rgb++ = 0;
471 *rgb++ = 0;
472 *rgb++ = 0;
473
474 // RGRGRG : Line process...
475 for (i=0, x=startx; i<nwidth-2; i++, x=x+stepx) {
476 if (x & 0x1) {
477 *rgb++ = (*(b-1) + *(b+1)) >> 1;
478 *rgb++ = *b;
479 *rgb++ = (*(b-width) + *(b+width)) >> 1;
480 }
481 else {
482 *rgb++ = *b;
483 *rgb++ = (*(b-width) + *(b-1) + *(b+1) + *(b+width)) >> 2;
484 *rgb++ = (*(b-width-1) + *(b-width+1) + *(b+width-1) + *(b+width+1)) >> 2;
485 }
486
487 b += stepx;
488 }
489
490 // Skip the last pixel
491 *rgb++ = 0;
492 *rgb++ = 0;
493 *rgb++ = 0;
494 }
495 }
496
497 // Clean the last line
498 memset(rgb, 0, nwidth * 3);
499}
500
501
514void stk11xx_b2rgb32(uint8_t *bayer, uint8_t *rgb,
515 struct stk11xx_coord *image,
516 struct stk11xx_coord *view,
517 const int hflip, const int vflip,
518 const int factor) {
519 uint8_t *b;
520
521 int x, y; // Position in bayer image
522 int i, j; // Position in rgb image
523
524 int width = image->x;
525 int height = image->y;
526
527 int nwidth = width / factor;
528 int nheight = height / factor;
529
530 int offset;
531 int startx, stepx;
532 int starty, stepy;
533
534
535 // Calculate the initial position (on Y axis)
536 if (vflip) {
537 starty = height - 2;
538 stepy = -factor;
539 }
540 else {
541 starty = 0;
542 stepy = factor;
543 }
544
545 // Calculate the initial position (on X axis)
546 if (hflip) {
547 startx = width - 1;
548 stepx = -factor;
549 offset = width - 2;
550 }
551 else {
552 startx = 0;
553 stepx = factor;
554 offset = 1;
555 }
556
557
558 // Skip the first line
559 bayer += width;
560
561 // To center vertically the image in the view
562 rgb += ((view->y - nheight) / 2) * view->x * 4;
563
564 // To center horizontally the image in the view
565 rgb += ((view->x - nwidth) / 2) * 4;
566
567 // Clean the first line
568 memset(rgb, 0, nwidth * 4);
569 rgb += nwidth * 4;
570
571
572 // For each rgb line without the borders (first and last line)
573 for (j=0, y=starty; j<nheight-2; j++, y=y+stepy) {
574 // Go to the start of line
575 b = bayer + y * width + offset;
576
577 // Offset to center horizontally the image in the view
578 rgb += (view->x - nwidth) * 4;
579
580 if (y & 0x1) {
581 // Skip the first pixel
582 *rgb++ = 0;
583 *rgb++ = 0;
584 *rgb++ = 0;
585 *rgb++ = 0;
586
587 // GBGBGB : Line process...
588 for (i=0, x=startx; i<nwidth-2; i++, x=x+stepx) {
589 if (x & 0x1) {
590 *rgb++ = (*(b-width-1) + *(b-width+1) + *(b+width-1) + *(b+width+1)) >> 2;
591 *rgb++ = (*(b-width) + *(b-1) + *(b+1) + *(b+width)) >> 2;
592 *rgb++ = *b;
593 *rgb++ = 0;
594 }
595 else {
596 *rgb++ = (*(b-width) + *(b+width)) >> 1;
597 *rgb++ = *b;
598 *rgb++ = (*(b-1) + *(b+1)) >> 1;
599 *rgb++ = 0;
600 }
601
602 b += stepx;
603 }
604
605 // Skip the last pixel
606 *rgb++ = 0;
607 *rgb++ = 0;
608 *rgb++ = 0;
609 *rgb++ = 0;
610 }
611 else {
612 // Skip the first pixel
613 *rgb++ = 0;
614 *rgb++ = 0;
615 *rgb++ = 0;
616 *rgb++ = 0;
617
618 // RGRGRG : Line process...
619 for (i=0, x=startx; i<nwidth-2; i++, x=x+stepx) {
620 if (x & 0x1) {
621 *rgb++ = (*(b-1) + *(b+1)) >> 1;
622 *rgb++ = *b;
623 *rgb++ = (*(b-width) + *(b+width)) >> 1;
624 *rgb++ = 0;
625 }
626 else {
627 *rgb++ = *b;
628 *rgb++ = (*(b-width) + *(b-1) + *(b+1) + *(b+width)) >> 2;
629 *rgb++ = (*(b-width-1) + *(b-width+1) + *(b+width-1) + *(b+width+1)) >> 2;
630 *rgb++ = 0;
631 }
632
633 b += stepx;
634 }
635
636 // Skip the last pixel
637 *rgb++ = 0;
638 *rgb++ = 0;
639 *rgb++ = 0;
640 *rgb++ = 0;
641 }
642 }
643
644 // Clean the last line
645 memset(rgb, 0, nwidth * 4);
646}
647
648
661void stk11xx_b2bgr24(uint8_t *bayer, uint8_t *bgr,
662 struct stk11xx_coord *image,
663 struct stk11xx_coord *view,
664 const int hflip, const int vflip,
665 const int factor) {
666 uint8_t *b;
667
668 int x, y; // Position in bayer image
669 int i, j; // Position in bgr image
670
671 int width = image->x;
672 int height = image->y;
673
674 int nwidth = width / factor;
675 int nheight = height / factor;
676
677 int offset;
678 int startx, stepx;
679 int starty, stepy;
680
681
682 // Calculate the initial position (on Y axis)
683 if (vflip) {
684 starty = height - 2;
685 stepy = -factor;
686 }
687 else {
688 starty = 0;
689 stepy = factor;
690 }
691
692 // Calculate the initial position (on X axis)
693 if (hflip) {
694 startx = width - 1;
695 stepx = -factor;
696 offset = width - 2;
697 }
698 else {
699 startx = 0;
700 stepx = factor;
701 offset = 1;
702 }
703
704
705 // Skip the first line
706 bayer += width;
707
708 // To center vertically the image in the view
709 bgr += ((view->y - nheight) / 2) * view->x * 3;
710
711 // To center horizontally the image in the view
712 bgr += ((view->x - nwidth) / 2) * 3;
713
714 // Clean the first line
715 memset(bgr, 0, nwidth * 3);
716 bgr += nwidth * 3;
717
718
719 // For each bgr line without the borders (first and last line)
720 for (j=0, y=starty; j<nheight-2; j++, y=y+stepy) {
721 // Go to the start of line
722 b = bayer + y * width + offset;
723
724 // Offset to center horizontally the image in the view
725 bgr += (view->x - nwidth) * 3;
726
727 if (y & 0x1) {
728 // Skip the first pixel
729 *bgr++ = 0;
730 *bgr++ = 0;
731 *bgr++ = 0;
732
733 // GBGBGB : Line process...
734 for (i=0, x=startx; i<nwidth-2; i++, x=x+stepx) {
735 if (x & 0x1) {
736 *bgr++ = *b;
737 *bgr++ = (*(b-width) + *(b-1) + *(b+1) + *(b+width)) >> 2;
738 *bgr++ = (*(b-width-1) + *(b-width+1) + *(b+width-1) + *(b+width+1)) >> 2;
739 }
740 else {
741 *bgr++ = (*(b-1) + *(b+1)) >> 1;
742 *bgr++ = *b;
743 *bgr++ = (*(b-width) + *(b+width)) >> 1;
744 }
745
746 b += stepx;
747 }
748
749 // Skip the last pixel
750 *bgr++ = 0;
751 *bgr++ = 0;
752 *bgr++ = 0;
753 }
754 else {
755 // Skip the first pixel
756 *bgr++ = 0;
757 *bgr++ = 0;
758 *bgr++ = 0;
759
760 // RGRGRG : Line process...
761 for (i=0, x=startx; i<nwidth-2; i++, x=x+stepx) {
762 if (x & 0x1) {
763 *bgr++ = (*(b-width) + *(b+width)) >> 1;
764 *bgr++ = *b;
765 *bgr++ = (*(b-1) + *(b+1)) >> 1;
766 }
767 else {
768 *bgr++ = (*(b-width-1) + *(b-width+1) + *(b+width-1) + *(b+width+1)) >> 2;
769 *bgr++ = (*(b-width) + *(b-1) + *(b+1) + *(b+width)) >> 2;
770 *bgr++ = *b;
771 }
772
773 b += stepx;
774 }
775
776 // Skip the last pixel
777 *bgr++ = 0;
778 *bgr++ = 0;
779 *bgr++ = 0;
780 }
781 }
782
783 // Clean the last line
784 memset(bgr, 0, nwidth * 3);
785}
786
787
800void stk11xx_b2bgr32(uint8_t *bayer, uint8_t *bgr,
801 struct stk11xx_coord *image,
802 struct stk11xx_coord *view,
803 const int hflip, const int vflip,
804 const int factor) {
805 uint8_t *b;
806
807 int x, y; // Position in bayer image
808 int i, j; // Position in bgr image
809
810 int width = image->x;
811 int height = image->y;
812
813 int nwidth = width / factor;
814 int nheight = height / factor;
815
816 int offset;
817 int startx, stepx;
818 int starty, stepy;
819
820
821 // Calculate the initial position (on Y axis)
822 if (vflip) {
823 starty = height - 2;
824 stepy = -factor;
825 }
826 else {
827 starty = 0;
828 stepy = factor;
829 }
830
831 // Calculate the initial position (on X axis)
832 if (hflip) {
833 startx = width - 1;
834 stepx = -factor;
835 offset = width - 2;
836 }
837 else {
838 startx = 0;
839 stepx = factor;
840 offset = 1;
841 }
842
843
844 // Skip the first line
845 bayer += width;
846
847 // To center vertically the image in the view
848 bgr += ((view->y - nheight) / 2) * view->x * 4;
849
850 // To center horizontally the image in the view
851 bgr += ((view->x - nwidth) / 2) * 4;
852
853 // Clean the first line
854 memset(bgr, 0, nwidth * 4);
855 bgr += nwidth * 4;
856
857
858 // For each bgr line without the borders (first and last line)
859 for (j=0, y=starty; j<nheight-2; j++, y=y+stepy) {
860 // Go to the start of line
861 b = bayer + y * width + offset;
862
863 // Offset to center horizontally the image in the view
864 bgr += (view->x - nwidth) * 4;
865
866 if (y & 0x1) {
867 // Skip the first pixel
868 *bgr++ = 0;
869 *bgr++ = 0;
870 *bgr++ = 0;
871 *bgr++ = 0;
872
873 // GBGBGB : Line process...
874 for (i=0, x=startx; i<nwidth-2; i++, x=x+stepx) {
875 if (x & 0x1) {
876 *bgr++ = *b;
877 *bgr++ = (*(b-width) + *(b-1) + *(b+1) + *(b+width)) >> 2;
878 *bgr++ = (*(b-width-1) + *(b-width+1) + *(b+width-1) + *(b+width+1)) >> 2;
879 *bgr++ = 0;
880 }
881 else {
882 *bgr++ = (*(b-1) + *(b+1)) >> 1;
883 *bgr++ = *b;
884 *bgr++ = (*(b-width) + *(b+width)) >> 1;
885 *bgr++ = 0;
886 }
887
888 b += stepx;
889 }
890
891 // Skip the last pixel
892 *bgr++ = 0;
893 *bgr++ = 0;
894 *bgr++ = 0;
895 *bgr++ = 0;
896 }
897 else {
898 // Skip the first pixel
899 *bgr++ = 0;
900 *bgr++ = 0;
901 *bgr++ = 0;
902 *bgr++ = 0;
903
904 // RGRGRG : Line process...
905 for (i=0, x=startx; i<nwidth-2; i++, x=x+stepx) {
906 if (x & 0x1) {
907 *bgr++ = (*(b-width) + *(b+width)) >> 1;
908 *bgr++ = *b;
909 *bgr++ = (*(b-1) + *(b+1)) >> 1;
910 *bgr++ = 0;
911 }
912 else {
913 *bgr++ = (*(b-width-1) + *(b-width+1) + *(b+width-1) + *(b+width+1)) >> 2;
914 *bgr++ = (*(b-width) + *(b-1) + *(b+1) + *(b+width)) >> 2;
915 *bgr++ = *b;
916 *bgr++ = 0;
917 }
918
919 b += stepx;
920 }
921
922 // Skip the last pixel
923 *bgr++ = 0;
924 *bgr++ = 0;
925 *bgr++ = 0;
926 *bgr++ = 0;
927 }
928 }
929
930 // Clean the last line
931 memset(bgr, 0, nwidth * 4);
932}
933
934
947void stk11xx_b2uyvy(uint8_t *bayer, uint8_t *yuv,
948 struct stk11xx_coord *image,
949 struct stk11xx_coord *view,
950 const int hflip, const int vflip,
951 const int factor) {
952 uint8_t *b;
953
954 int x, y; // Position in bayer image
955 int i, j; // Position in yuv image
956
957 int pR, pG, pB;
958 int pY, pU, pV;
959
960 int width = image->x;
961 int height = image->y;
962
963 int nwidth = width / factor;
964 int nheight = height / factor;
965
966 int offset;
967 int startx, stepx;
968 int starty, stepy;
969
970
971 // Calculate the initial position (on Y axis)
972 if (vflip) {
973 starty = height - 2;
974 stepy = -factor;
975 }
976 else {
977 starty = 0;
978 stepy = factor;
979 }
980
981 // Calculate the initial position (on X axis)
982 if (hflip) {
983 startx = width - 1;
984 stepx = -factor;
985 offset = width - 2;
986 }
987 else {
988 startx = 0;
989 stepx = factor;
990 offset = 1;
991 }
992
993 // Background color...
994 memset(yuv, 16, width * 2);
995 for (i=0; i<width*2; i=i+2, *(yuv+i)=128);
996 for (i=1; i<height; i++)
997 memcpy(yuv+i*width*2, yuv, width*2);
998
999 // Skip the first line
1000 bayer += width;
1001
1002 // To center vertically the image in the view
1003 yuv += ((view->y - nheight) / 2) * view->x * 2;
1004
1005 // To center horizontally the image in the view
1006 yuv += ((view->x - nwidth) / 2) * 2;
1007
1008 // Clean the first line
1009 memset(yuv, 16, nwidth * 2);
1010 for (i=0; i<nwidth*2; i=i+2, *(yuv+i)=128);
1011 yuv += nwidth * 2;
1012
1013
1014 // For each yuv line without the borders (first and last line)
1015 for (j=0, y=starty; j<nheight-2; j++, y=y+stepy) {
1016 // Go to the start of line
1017 b = bayer + y * width + offset;
1018
1019 // Offset to center horizontally the image in the view
1020 yuv += (view->x - nwidth) * 2;
1021
1022 if (y & 0x1) {
1023 // Skip the first pixel
1024 *yuv++ = 128;
1025 *yuv++ = 16;
1026
1027 // GBGBGB : Line process...
1028 for (i=0, x=startx; i<nwidth-2; i++, x=x+stepx) {
1029 if (x & 0x1) {
1030 pR = (*(b-width-1) + *(b-width+1) + *(b+width-1) + *(b+width+1)) >> 2;
1031 pG = (*(b-width) + *(b-1) + *(b+1) + *(b+width)) >> 2;
1032 pB = *b;
1033 }
1034 else {
1035 pR = (*(b-width) + *(b+width)) >> 1;
1036 pG = *b;
1037 pB = (*(b-1) + *(b+1)) >> 1;
1038 }
1039
1040 pY = stk11xx_yuv_interp[pR][0] + stk11xx_yuv_interp[pG][1] + stk11xx_yuv_interp[pB][2];
1041 pU = stk11xx_yuv_interp[pR][3] + stk11xx_yuv_interp[pG][4] + stk11xx_yuv_interp[pB][5];
1042 pV = stk11xx_yuv_interp[pR][5] + stk11xx_yuv_interp[pG][6] + stk11xx_yuv_interp[pB][7];
1043
1044 pY = CLIP(pY, 0,255);
1045 pU = CLIP(pU, -127,127);
1046 pV = CLIP(pV, -127,127);
1047
1048 if (i % 2){
1049 *yuv++ = (112 * pU)/127 + 128; // U
1050 *yuv++ = (219 * pY)/255 + 16; // Y
1051 }
1052 else {
1053 *yuv++ = (112 * pV)/127 + 128; // V
1054 *yuv++ = (219 * pY)/255 + 16; // Y
1055 }
1056
1057 b += stepx;
1058 }
1059
1060 // Skip the last pixel
1061 *yuv++ = 128;
1062 *yuv++ = 16;
1063 }
1064 else {
1065 // Skip the first pixel
1066 *yuv++ = 128;
1067 *yuv++ = 16;
1068
1069 // RGRGRG : Line process...
1070 for (i=0, x=startx; i<nwidth-2; i++, x=x+stepx) {
1071 if (x & 0x1) {
1072 pR = (*(b-1) + *(b+1)) >> 1;
1073 pG = *b;
1074 pB = (*(b-width) + *(b+width)) >> 1;
1075 }
1076 else {
1077 pR = *b;
1078 pG = (*(b-width) + *(b-1) + *(b+1) + *(b+width)) >> 2;
1079 pB = (*(b-width-1) + *(b-width+1) + *(b+width-1) + *(b+width+1)) >> 2;
1080 }
1081
1082 pY = stk11xx_yuv_interp[pR][0] + stk11xx_yuv_interp[pG][1] + stk11xx_yuv_interp[pB][2];
1083 pU = stk11xx_yuv_interp[pR][3] + stk11xx_yuv_interp[pG][4] + stk11xx_yuv_interp[pB][5];
1084 pV = stk11xx_yuv_interp[pR][5] + stk11xx_yuv_interp[pG][6] + stk11xx_yuv_interp[pB][7];
1085
1086 pY = CLIP(pY, 0,255);
1087 pU = CLIP(pU, -127,127);
1088 pV = CLIP(pV, -127,127);
1089
1090 if (i % 2){
1091 *yuv++ = (112 * pU)/127 + 128; // U
1092 *yuv++ = (219 * pY)/255 + 16; // Y
1093 }
1094 else {
1095 *yuv++ = (112 * pV)/127 + 128; // V
1096 *yuv++ = (219 * pY)/255 + 16; // Y
1097 }
1098
1099 b += stepx;
1100 }
1101
1102 // Skip the last pixel
1103 *yuv++ = 128;
1104 *yuv++ = 16;
1105 }
1106 }
1107
1108 // Clean the last line
1109 memset(yuv, 16, nwidth * 2);
1110 for (i=0; i<nwidth*2; i=i+2, *(yuv+i)=128);
1111}
1112
1113
1126void stk11xx_b2yuyv(uint8_t *bayer, uint8_t *yuv,
1127 struct stk11xx_coord *image,
1128 struct stk11xx_coord *view,
1129 const int hflip, const int vflip,
1130 const int factor) {
1131 uint8_t *b;
1132
1133 int x, y; // Position in bayer image
1134 int i, j; // Position in yuv image
1135
1136 int pR, pG, pB;
1137 int pY, pU, pV;
1138
1139 int width = image->x;
1140 int height = image->y;
1141
1142 int nwidth = width / factor;
1143 int nheight = height / factor;
1144
1145 int offset;
1146 int startx, stepx;
1147 int starty, stepy;
1148
1149
1150 // Calculate the initial position (on Y axis)
1151 if (vflip) {
1152 starty = height - 2;
1153 stepy = -factor;
1154 }
1155 else {
1156 starty = 0;
1157 stepy = factor;
1158 }
1159
1160 // Calculate the initial position (on X axis)
1161 if (hflip) {
1162 startx = width - 1;
1163 stepx = -factor;
1164 offset = width - 2;
1165 }
1166 else {
1167 startx = 0;
1168 stepx = factor;
1169 offset = 1;
1170 }
1171
1172 // Background color...
1173 memset(yuv, 128, width * 2);
1174 for (i=0; i<width*2; i=i+2, *(yuv+i)=16);
1175 for (i=1; i<height; i++)
1176 memcpy(yuv+i*width*2, yuv, width*2);
1177
1178 // Skip the first line
1179 bayer += width;
1180
1181 // To center vertically the image in the view
1182 yuv += ((view->y - nheight) / 2) * view->x * 2;
1183
1184 // To center horizontally the image in the view
1185 yuv += ((view->x - nwidth) / 2) * 2;
1186
1187 // Clean the first line
1188 memset(yuv, 128, nwidth * 2);
1189 for (i=0; i<nwidth*2; i=i+2, *(yuv+i)=16);
1190 yuv += nwidth * 2;
1191
1192
1193 // For each yuv line without the borders (first and last line)
1194 for (j=0, y=starty; j<nheight-2; j++, y=y+stepy) {
1195 // Go to the start of line
1196 b = bayer + y * width + offset;
1197
1198 // Offset to center horizontally the image in the view
1199 yuv += (view->x - nwidth) * 2;
1200
1201 if (y & 0x1) {
1202 // Skip the first pixel
1203 *yuv++ = 16;
1204 *yuv++ = 128;
1205
1206 // GBGBGB : Line process...
1207 for (i=0, x=startx; i<nwidth-2; i++, x=x+stepx) {
1208 if (x & 0x1) {
1209 pR = (*(b-width-1) + *(b-width+1) + *(b+width-1) + *(b+width+1)) >> 2;
1210 pG = (*(b-width) + *(b-1) + *(b+1) + *(b+width)) >> 2;
1211 pB = *b;
1212 }
1213 else {
1214 pR = (*(b-width) + *(b+width)) >> 1;
1215 pG = *b;
1216 pB = (*(b-1) + *(b+1)) >> 1;
1217 }
1218
1219 pY = stk11xx_yuv_interp[pR][0] + stk11xx_yuv_interp[pG][1] + stk11xx_yuv_interp[pB][2];
1220 pU = stk11xx_yuv_interp[pR][3] + stk11xx_yuv_interp[pG][4] + stk11xx_yuv_interp[pB][5];
1221 pV = stk11xx_yuv_interp[pR][5] + stk11xx_yuv_interp[pG][6] + stk11xx_yuv_interp[pB][7];
1222
1223 pY = CLIP(pY, 0,255);
1224 pU = CLIP(pU, -127,127);
1225 pV = CLIP(pV, -127,127);
1226
1227 if (i % 2){
1228 *yuv++ = (219 * pY)/255 + 16; // Y
1229 *yuv++ = (112 * pU)/127 + 128; // U
1230 }
1231 else {
1232 *yuv++ = (219 * pY)/255 + 16; // Y
1233 *yuv++ = (112 * pV)/127 + 128; // V
1234 }
1235
1236 b += stepx;
1237 }
1238
1239 // Skip the last pixel
1240 *yuv++ = 16;
1241 *yuv++ = 128;
1242 }
1243 else {
1244 // Skip the first pixel
1245 *yuv++ = 16;
1246 *yuv++ = 128;
1247
1248 // RGRGRG : Line process...
1249 for (i=0, x=startx; i<nwidth-2; i++, x=x+stepx) {
1250 if (x & 0x1) {
1251 pR = (*(b-1) + *(b+1)) >> 1;
1252 pG = *b;
1253 pB = (*(b-width) + *(b+width)) >> 1;
1254 }
1255 else {
1256 pR = *b;
1257 pG = (*(b-width) + *(b-1) + *(b+1) + *(b+width)) >> 2;
1258 pB = (*(b-width-1) + *(b-width+1) + *(b+width-1) + *(b+width+1)) >> 2;
1259 }
1260
1261 pY = stk11xx_yuv_interp[pR][0] + stk11xx_yuv_interp[pG][1] + stk11xx_yuv_interp[pB][2];
1262 pU = stk11xx_yuv_interp[pR][3] + stk11xx_yuv_interp[pG][4] + stk11xx_yuv_interp[pB][5];
1263 pV = stk11xx_yuv_interp[pR][5] + stk11xx_yuv_interp[pG][6] + stk11xx_yuv_interp[pB][7];
1264
1265 pY = CLIP(pY, 0,255);
1266 pU = CLIP(pU, -127,127);
1267 pV = CLIP(pV, -127,127);
1268
1269 if (i % 2){
1270 *yuv++ = (219 * pY)/255 + 16; // Y
1271 *yuv++ = (112 * pU)/127 + 128; // U
1272 }
1273 else {
1274 *yuv++ = (219 * pY)/255 + 16; // Y
1275 *yuv++ = (112 * pV)/127 + 128; // V
1276 }
1277
1278 b += stepx;
1279 }
1280
1281 // Skip the last pixel
1282 *yuv++ = 16;
1283 *yuv++ = 128;
1284 }
1285 }
1286
1287 // Clean the last line
1288 memset(yuv, 128, nwidth * 2);
1289 for (i=0; i<nwidth*2; i=i+2, *(yuv+i)=16);
1290}
1291
1292
stk11xx_b2rgb32
void stk11xx_b2rgb32(uint8_t *, uint8_t *, struct stk11xx_coord *, struct stk11xx_coord *, const int, const int, const int)
This function permits to convert an image from bayer to RGB32.
Definition stk11xx-bayer.c:514
stk11xx_b2uyvy
void stk11xx_b2uyvy(uint8_t *, uint8_t *, struct stk11xx_coord *, struct stk11xx_coord *, const int, const int, const int)
This function permits to convert an image from bayer to YUV (UYVY)
Definition stk11xx-bayer.c:947
stk11xx_b2rgb24
void stk11xx_b2rgb24(uint8_t *, uint8_t *, struct stk11xx_coord *, struct stk11xx_coord *, const int, const int, const int)
This function permits to convert an image from bayer to RGB24.
Definition stk11xx-bayer.c:375
stk11xx_correct_brightness
void stk11xx_correct_brightness(uint8_t *, const int, const int, const int, int, int)
Correct the brightness of an image.
Definition stk11xx-bayer.c:271
stk11xx_b2bgr24
void stk11xx_b2bgr24(uint8_t *, uint8_t *, struct stk11xx_coord *, struct stk11xx_coord *, const int, const int, const int)
This function permits to convert an image from bayer to BGR24.
Definition stk11xx-bayer.c:661
stk11xx_b2bgr32
void stk11xx_b2bgr32(uint8_t *, uint8_t *, struct stk11xx_coord *, struct stk11xx_coord *, const int, const int, const int)
This function permits to convert an image from bayer to BGR32.
Definition stk11xx-bayer.c:800
stk11xx_decompress
int stk11xx_decompress(struct usb_stk11xx *dev)
Decompress a frame.
Definition stk11xx-bayer.c:155
stk11xx_b2yuyv
void stk11xx_b2yuyv(uint8_t *, uint8_t *, struct stk11xx_coord *, struct stk11xx_coord *, const int, const int, const int)
This function permits to convert an image from bayer to YUV (YUYV)
Definition stk11xx-bayer.c:1126
hflip
static int hflip
Definition stk11xx-usb.c:1085
vflip
static int vflip
Definition stk11xx-usb.c:1091
brightness
static int brightness
Definition stk11xx-usb.c:1097
stk11xx.h
Driver for Syntek USB video camera.
stk11xx_coord
Definition stk11xx.h:282
stk11xx_coord::x
int x
Definition stk11xx.h:283
stk11xx_coord::y
int y
Definition stk11xx.h:284
stk11xx_frame_buf
Definition stk11xx.h:261
stk11xx_image_buf::offset
unsigned long offset
Definition stk11xx.h:274
stk11xx_video::hflip
int hflip
Definition stk11xx.h:300
stk11xx_video::brightness
int brightness
Definition stk11xx.h:293
stk11xx_video::palette
int palette
Definition stk11xx.h:298
stk11xx_video::vflip
int vflip
Definition stk11xx.h:301
stk11xx_video::depth
int depth
Definition stk11xx.h:297
usb_stk11xx
Definition stk11xx.h:318
usb_stk11xx::vsettings
struct stk11xx_video vsettings
Definition stk11xx.h:336
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