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2ba45a60 DM |
1 | /* |
2 | * Software equalizer (brightness, contrast, gamma, saturation) | |
3 | * | |
4 | * Hampa Hug <hampa@hampa.ch> (original LUT gamma/contrast/brightness filter) | |
5 | * Daniel Moreno <comac@comac.darktech.org> (saturation, R/G/B gamma support) | |
6 | * Richard Felker (original MMX contrast/brightness code (vf_eq.c)) | |
7 | * Michael Niedermayer <michalni@gmx.at> (LUT16) | |
8 | * | |
9 | * This file is part of MPlayer. | |
10 | * | |
11 | * MPlayer is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2 of the License, or | |
14 | * (at your option) any later version. | |
15 | * | |
16 | * MPlayer is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License along | |
22 | * with MPlayer; if not, write to the Free Software Foundation, Inc., | |
23 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
24 | */ | |
25 | ||
26 | #include <stdio.h> | |
27 | #include <stdlib.h> | |
28 | #include <string.h> | |
29 | #include <math.h> | |
30 | #include <inttypes.h> | |
31 | ||
32 | #include "config.h" | |
33 | #include "mp_msg.h" | |
34 | #include "cpudetect.h" | |
35 | ||
36 | #include "img_format.h" | |
37 | #include "mp_image.h" | |
38 | #include "vf.h" | |
39 | ||
40 | #define LUT16 | |
41 | ||
42 | /* Per channel parameters */ | |
43 | typedef struct eq2_param_t { | |
44 | unsigned char lut[256]; | |
45 | #ifdef LUT16 | |
46 | uint16_t lut16[256*256]; | |
47 | #endif | |
48 | int lut_clean; | |
49 | ||
50 | void (*adjust) (struct eq2_param_t *par, unsigned char *dst, unsigned char *src, | |
51 | unsigned w, unsigned h, unsigned dstride, unsigned sstride); | |
52 | ||
53 | double c; | |
54 | double b; | |
55 | double g; | |
56 | double w; | |
57 | } eq2_param_t; | |
58 | ||
59 | typedef struct vf_priv_s { | |
60 | eq2_param_t param[3]; | |
61 | ||
62 | double contrast; | |
63 | double brightness; | |
64 | double saturation; | |
65 | ||
66 | double gamma; | |
67 | double gamma_weight; | |
68 | double rgamma; | |
69 | double ggamma; | |
70 | double bgamma; | |
71 | ||
72 | unsigned buf_w[3]; | |
73 | unsigned buf_h[3]; | |
74 | unsigned char *buf[3]; | |
75 | } vf_eq2_t; | |
76 | ||
77 | ||
78 | static | |
79 | void create_lut (eq2_param_t *par) | |
80 | { | |
81 | unsigned i; | |
82 | double g, v; | |
83 | double lw, gw; | |
84 | ||
85 | g = par->g; | |
86 | gw = par->w; | |
87 | lw = 1.0 - gw; | |
88 | ||
89 | if ((g < 0.001) || (g > 1000.0)) { | |
90 | g = 1.0; | |
91 | } | |
92 | ||
93 | g = 1.0 / g; | |
94 | ||
95 | for (i = 0; i < 256; i++) { | |
96 | v = (double) i / 255.0; | |
97 | v = par->c * (v - 0.5) + 0.5 + par->b; | |
98 | ||
99 | if (v <= 0.0) { | |
100 | par->lut[i] = 0; | |
101 | } | |
102 | else { | |
103 | v = v*lw + pow(v, g)*gw; | |
104 | ||
105 | if (v >= 1.0) { | |
106 | par->lut[i] = 255; | |
107 | } | |
108 | else { | |
109 | par->lut[i] = (unsigned char) (256.0 * v); | |
110 | } | |
111 | } | |
112 | } | |
113 | ||
114 | #ifdef LUT16 | |
115 | for(i=0; i<256*256; i++){ | |
116 | par->lut16[i]= par->lut[i&0xFF] + (par->lut[i>>8]<<8); | |
117 | } | |
118 | #endif | |
119 | ||
120 | par->lut_clean = 1; | |
121 | } | |
122 | ||
f6fa7814 | 123 | #if HAVE_MMX_INLINE && HAVE_6REGS |
2ba45a60 DM |
124 | static |
125 | void affine_1d_MMX (eq2_param_t *par, unsigned char *dst, unsigned char *src, | |
126 | unsigned w, unsigned h, unsigned dstride, unsigned sstride) | |
127 | { | |
128 | unsigned i; | |
129 | int contrast, brightness; | |
130 | unsigned dstep, sstep; | |
131 | int pel; | |
132 | short brvec[4]; | |
133 | short contvec[4]; | |
134 | ||
135 | // printf("\nmmx: src=%p dst=%p w=%d h=%d ds=%d ss=%d\n",src,dst,w,h,dstride,sstride); | |
136 | ||
137 | contrast = (int) (par->c * 256 * 16); | |
138 | brightness = ((int) (100.0 * par->b + 100.0) * 511) / 200 - 128 - contrast / 32; | |
139 | ||
140 | brvec[0] = brvec[1] = brvec[2] = brvec[3] = brightness; | |
141 | contvec[0] = contvec[1] = contvec[2] = contvec[3] = contrast; | |
142 | ||
143 | sstep = sstride - w; | |
144 | dstep = dstride - w; | |
145 | ||
146 | while (h-- > 0) { | |
147 | __asm__ volatile ( | |
148 | "movq (%5), %%mm3 \n\t" | |
149 | "movq (%6), %%mm4 \n\t" | |
150 | "pxor %%mm0, %%mm0 \n\t" | |
151 | "movl %4, %%eax\n\t" | |
152 | ASMALIGN(4) | |
153 | "1: \n\t" | |
154 | "movq (%0), %%mm1 \n\t" | |
155 | "movq (%0), %%mm2 \n\t" | |
156 | "punpcklbw %%mm0, %%mm1 \n\t" | |
157 | "punpckhbw %%mm0, %%mm2 \n\t" | |
158 | "psllw $4, %%mm1 \n\t" | |
159 | "psllw $4, %%mm2 \n\t" | |
160 | "pmulhw %%mm4, %%mm1 \n\t" | |
161 | "pmulhw %%mm4, %%mm2 \n\t" | |
162 | "paddw %%mm3, %%mm1 \n\t" | |
163 | "paddw %%mm3, %%mm2 \n\t" | |
164 | "packuswb %%mm2, %%mm1 \n\t" | |
165 | "add $8, %0 \n\t" | |
166 | "movq %%mm1, (%1) \n\t" | |
167 | "add $8, %1 \n\t" | |
168 | "decl %%eax \n\t" | |
169 | "jnz 1b \n\t" | |
170 | : "=r" (src), "=r" (dst) | |
171 | : "0" (src), "1" (dst), "r" (w >> 3), "r" (brvec), "r" (contvec) | |
172 | : "%eax" | |
173 | ); | |
174 | ||
175 | for (i = w & 7; i > 0; i--) { | |
176 | pel = ((*src++ * contrast) >> 12) + brightness; | |
177 | if (pel & 768) { | |
178 | pel = (-pel) >> 31; | |
179 | } | |
180 | *dst++ = pel; | |
181 | } | |
182 | ||
183 | src += sstep; | |
184 | dst += dstep; | |
185 | } | |
186 | ||
187 | __asm__ volatile ( "emms \n\t" ::: "memory" ); | |
188 | } | |
189 | #endif | |
190 | ||
191 | static | |
192 | void apply_lut (eq2_param_t *par, unsigned char *dst, unsigned char *src, | |
193 | unsigned w, unsigned h, unsigned dstride, unsigned sstride) | |
194 | { | |
195 | unsigned i, j, w2; | |
196 | unsigned char *lut; | |
197 | uint16_t *lut16; | |
198 | ||
199 | if (!par->lut_clean) { | |
200 | create_lut (par); | |
201 | } | |
202 | ||
203 | lut = par->lut; | |
204 | #ifdef LUT16 | |
205 | lut16 = par->lut16; | |
206 | w2= (w>>3)<<2; | |
207 | for (j = 0; j < h; j++) { | |
208 | uint16_t *src16= (uint16_t*)src; | |
209 | uint16_t *dst16= (uint16_t*)dst; | |
210 | for (i = 0; i < w2; i+=4) { | |
211 | dst16[i+0] = lut16[src16[i+0]]; | |
212 | dst16[i+1] = lut16[src16[i+1]]; | |
213 | dst16[i+2] = lut16[src16[i+2]]; | |
214 | dst16[i+3] = lut16[src16[i+3]]; | |
215 | } | |
216 | i <<= 1; | |
217 | #else | |
218 | w2= (w>>3)<<3; | |
219 | for (j = 0; j < h; j++) { | |
220 | for (i = 0; i < w2; i+=8) { | |
221 | dst[i+0] = lut[src[i+0]]; | |
222 | dst[i+1] = lut[src[i+1]]; | |
223 | dst[i+2] = lut[src[i+2]]; | |
224 | dst[i+3] = lut[src[i+3]]; | |
225 | dst[i+4] = lut[src[i+4]]; | |
226 | dst[i+5] = lut[src[i+5]]; | |
227 | dst[i+6] = lut[src[i+6]]; | |
228 | dst[i+7] = lut[src[i+7]]; | |
229 | } | |
230 | #endif | |
231 | for (; i < w; i++) { | |
232 | dst[i] = lut[src[i]]; | |
233 | } | |
234 | ||
235 | src += sstride; | |
236 | dst += dstride; | |
237 | } | |
238 | } | |
239 | ||
240 | static | |
241 | int put_image (vf_instance_t *vf, mp_image_t *src, double pts) | |
242 | { | |
243 | unsigned i; | |
244 | vf_eq2_t *eq2; | |
245 | mp_image_t *dst; | |
246 | unsigned long img_n,img_c; | |
247 | ||
248 | eq2 = vf->priv; | |
249 | ||
250 | if ((eq2->buf_w[0] != src->w) || (eq2->buf_h[0] != src->h)) { | |
251 | eq2->buf_w[0] = src->w; | |
252 | eq2->buf_h[0] = src->h; | |
253 | eq2->buf_w[1] = eq2->buf_w[2] = src->w >> src->chroma_x_shift; | |
254 | eq2->buf_h[1] = eq2->buf_h[2] = src->h >> src->chroma_y_shift; | |
255 | img_n = eq2->buf_w[0]*eq2->buf_h[0]; | |
256 | if(src->num_planes>1){ | |
257 | img_c = eq2->buf_w[1]*eq2->buf_h[1]; | |
258 | eq2->buf[0] = realloc (eq2->buf[0], img_n + 2*img_c); | |
259 | eq2->buf[1] = eq2->buf[0] + img_n; | |
260 | eq2->buf[2] = eq2->buf[1] + img_c; | |
261 | } else | |
262 | eq2->buf[0] = realloc (eq2->buf[0], img_n); | |
263 | } | |
264 | ||
265 | dst = ff_vf_get_image (vf->next, src->imgfmt, MP_IMGTYPE_EXPORT, 0, src->w, src->h); | |
266 | ||
267 | for (i = 0; i < ((src->num_planes>1)?3:1); i++) { | |
268 | if (eq2->param[i].adjust) { | |
269 | dst->planes[i] = eq2->buf[i]; | |
270 | dst->stride[i] = eq2->buf_w[i]; | |
271 | ||
272 | eq2->param[i].adjust (&eq2->param[i], dst->planes[i], src->planes[i], | |
273 | eq2->buf_w[i], eq2->buf_h[i], dst->stride[i], src->stride[i]); | |
274 | } | |
275 | else { | |
276 | dst->planes[i] = src->planes[i]; | |
277 | dst->stride[i] = src->stride[i]; | |
278 | } | |
279 | } | |
280 | ||
281 | return ff_vf_next_put_image (vf, dst, pts); | |
282 | } | |
283 | ||
284 | static | |
285 | void check_values (eq2_param_t *par) | |
286 | { | |
287 | /* yuck! floating point comparisons... */ | |
288 | ||
289 | if ((par->c == 1.0) && (par->b == 0.0) && (par->g == 1.0)) { | |
290 | par->adjust = NULL; | |
291 | } | |
f6fa7814 | 292 | #if HAVE_MMX_INLINE && HAVE_6REGS |
2ba45a60 DM |
293 | else if (par->g == 1.0 && ff_gCpuCaps.hasMMX) { |
294 | par->adjust = &affine_1d_MMX; | |
295 | } | |
296 | #endif | |
297 | else { | |
298 | par->adjust = &apply_lut; | |
299 | } | |
300 | } | |
301 | ||
302 | static | |
303 | void print_values (vf_eq2_t *eq2) | |
304 | { | |
305 | ff_mp_msg (MSGT_VFILTER, MSGL_V, "vf_eq2: c=%.2f b=%.2f g=%.4f s=%.2f \n", | |
306 | eq2->contrast, eq2->brightness, eq2->gamma, eq2->saturation | |
307 | ); | |
308 | } | |
309 | ||
310 | static | |
311 | void set_contrast (vf_eq2_t *eq2, double c) | |
312 | { | |
313 | eq2->contrast = c; | |
314 | eq2->param[0].c = c; | |
315 | eq2->param[0].lut_clean = 0; | |
316 | check_values (&eq2->param[0]); | |
317 | print_values (eq2); | |
318 | } | |
319 | ||
320 | static | |
321 | void set_brightness (vf_eq2_t *eq2, double b) | |
322 | { | |
323 | eq2->brightness = b; | |
324 | eq2->param[0].b = b; | |
325 | eq2->param[0].lut_clean = 0; | |
326 | check_values (&eq2->param[0]); | |
327 | print_values (eq2); | |
328 | } | |
329 | ||
330 | static | |
331 | void set_gamma (vf_eq2_t *eq2, double g) | |
332 | { | |
333 | eq2->gamma = g; | |
334 | ||
335 | eq2->param[0].g = eq2->gamma * eq2->ggamma; | |
336 | eq2->param[1].g = sqrt (eq2->bgamma / eq2->ggamma); | |
337 | eq2->param[2].g = sqrt (eq2->rgamma / eq2->ggamma); | |
338 | eq2->param[0].w = eq2->param[1].w = eq2->param[2].w = eq2->gamma_weight; | |
339 | ||
340 | eq2->param[0].lut_clean = 0; | |
341 | eq2->param[1].lut_clean = 0; | |
342 | eq2->param[2].lut_clean = 0; | |
343 | ||
344 | check_values (&eq2->param[0]); | |
345 | check_values (&eq2->param[1]); | |
346 | check_values (&eq2->param[2]); | |
347 | ||
348 | print_values (eq2); | |
349 | } | |
350 | ||
351 | static | |
352 | void set_saturation (vf_eq2_t *eq2, double s) | |
353 | { | |
354 | eq2->saturation = s; | |
355 | ||
356 | eq2->param[1].c = s; | |
357 | eq2->param[2].c = s; | |
358 | ||
359 | eq2->param[1].lut_clean = 0; | |
360 | eq2->param[2].lut_clean = 0; | |
361 | ||
362 | check_values (&eq2->param[1]); | |
363 | check_values (&eq2->param[2]); | |
364 | ||
365 | print_values (eq2); | |
366 | } | |
367 | ||
368 | static | |
369 | int control (vf_instance_t *vf, int request, void *data) | |
370 | { | |
371 | vf_equalizer_t *eq; | |
372 | ||
373 | switch (request) { | |
374 | case VFCTRL_SET_EQUALIZER: | |
375 | eq = (vf_equalizer_t *) data; | |
376 | ||
377 | if (strcmp (eq->item, "gamma") == 0) { | |
378 | set_gamma (vf->priv, exp (log (8.0) * eq->value / 100.0)); | |
379 | return CONTROL_TRUE; | |
380 | } | |
381 | else if (strcmp (eq->item, "contrast") == 0) { | |
382 | set_contrast (vf->priv, (1.0 / 100.0) * (eq->value + 100)); | |
383 | return CONTROL_TRUE; | |
384 | } | |
385 | else if (strcmp (eq->item, "brightness") == 0) { | |
386 | set_brightness (vf->priv, (1.0 / 100.0) * eq->value); | |
387 | return CONTROL_TRUE; | |
388 | } | |
389 | else if (strcmp (eq->item, "saturation") == 0) { | |
390 | set_saturation (vf->priv, (double) (eq->value + 100) / 100.0); | |
391 | return CONTROL_TRUE; | |
392 | } | |
393 | break; | |
394 | ||
395 | case VFCTRL_GET_EQUALIZER: | |
396 | eq = (vf_equalizer_t *) data; | |
397 | if (strcmp (eq->item, "gamma") == 0) { | |
398 | eq->value = (int) (100.0 * log (vf->priv->gamma) / log (8.0)); | |
399 | return CONTROL_TRUE; | |
400 | } | |
401 | else if (strcmp (eq->item, "contrast") == 0) { | |
402 | eq->value = (int) (100.0 * vf->priv->contrast) - 100; | |
403 | return CONTROL_TRUE; | |
404 | } | |
405 | else if (strcmp (eq->item, "brightness") == 0) { | |
406 | eq->value = (int) (100.0 * vf->priv->brightness); | |
407 | return CONTROL_TRUE; | |
408 | } | |
409 | else if (strcmp (eq->item, "saturation") == 0) { | |
410 | eq->value = (int) (100.0 * vf->priv->saturation) - 100; | |
411 | return CONTROL_TRUE; | |
412 | } | |
413 | break; | |
414 | } | |
415 | ||
416 | return ff_vf_next_control (vf, request, data); | |
417 | } | |
418 | ||
419 | static | |
420 | int query_format (vf_instance_t *vf, unsigned fmt) | |
421 | { | |
422 | switch (fmt) { | |
423 | case IMGFMT_YVU9: | |
424 | case IMGFMT_IF09: | |
425 | case IMGFMT_YV12: | |
426 | case IMGFMT_I420: | |
427 | case IMGFMT_IYUV: | |
428 | case IMGFMT_Y800: | |
429 | case IMGFMT_Y8: | |
430 | case IMGFMT_444P: | |
431 | case IMGFMT_422P: | |
432 | case IMGFMT_411P: | |
433 | return ff_vf_next_query_format (vf, fmt); | |
434 | } | |
435 | ||
436 | return 0; | |
437 | } | |
438 | ||
439 | static | |
440 | void uninit (vf_instance_t *vf) | |
441 | { | |
442 | if (vf->priv) { | |
443 | free (vf->priv->buf[0]); | |
444 | free (vf->priv); | |
445 | } | |
446 | } | |
447 | ||
448 | static | |
449 | int vf_open(vf_instance_t *vf, char *args) | |
450 | { | |
451 | unsigned i; | |
452 | vf_eq2_t *eq2; | |
453 | double par[8]; | |
454 | ||
455 | vf->control = control; | |
456 | vf->query_format = query_format; | |
457 | vf->put_image = put_image; | |
458 | vf->uninit = uninit; | |
459 | ||
460 | vf->priv = malloc (sizeof (vf_eq2_t)); | |
461 | eq2 = vf->priv; | |
462 | ||
463 | for (i = 0; i < 3; i++) { | |
464 | eq2->buf[i] = NULL; | |
465 | eq2->buf_w[i] = 0; | |
466 | eq2->buf_h[i] = 0; | |
467 | ||
468 | eq2->param[i].adjust = NULL; | |
469 | eq2->param[i].c = 1.0; | |
470 | eq2->param[i].b = 0.0; | |
471 | eq2->param[i].g = 1.0; | |
472 | eq2->param[i].lut_clean = 0; | |
473 | } | |
474 | ||
475 | eq2->contrast = 1.0; | |
476 | eq2->brightness = 0.0; | |
477 | eq2->saturation = 1.0; | |
478 | ||
479 | eq2->gamma = 1.0; | |
480 | eq2->gamma_weight = 1.0; | |
481 | eq2->rgamma = 1.0; | |
482 | eq2->ggamma = 1.0; | |
483 | eq2->bgamma = 1.0; | |
484 | ||
485 | if (args) { | |
486 | par[0] = 1.0; | |
487 | par[1] = 1.0; | |
488 | par[2] = 0.0; | |
489 | par[3] = 1.0; | |
490 | par[4] = 1.0; | |
491 | par[5] = 1.0; | |
492 | par[6] = 1.0; | |
493 | par[7] = 1.0; | |
494 | sscanf (args, "%lf:%lf:%lf:%lf:%lf:%lf:%lf:%lf", | |
495 | par, par + 1, par + 2, par + 3, par + 4, par + 5, par + 6, par + 7 | |
496 | ); | |
497 | ||
498 | eq2->rgamma = par[4]; | |
499 | eq2->ggamma = par[5]; | |
500 | eq2->bgamma = par[6]; | |
501 | eq2->gamma_weight = par[7]; | |
502 | ||
503 | set_gamma (eq2, par[0]); | |
504 | set_contrast (eq2, par[1]); | |
505 | set_brightness (eq2, par[2]); | |
506 | set_saturation (eq2, par[3]); | |
507 | } | |
508 | ||
509 | return 1; | |
510 | } | |
511 | ||
512 | const vf_info_t ff_vf_info_eq2 = { | |
513 | "Software equalizer", | |
514 | "eq2", | |
515 | "Hampa Hug, Daniel Moreno, Richard Felker", | |
516 | "", | |
517 | &vf_open, | |
518 | NULL | |
519 | }; |