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1 : | edgomez | 195 | /************************************************************************** |
2 : | * | ||
3 : | * XVID MPEG-4 VIDEO CODEC | ||
4 : | * colorspace conversions | ||
5 : | * | ||
6 : | * This program is free software; you can redistribute it and/or modify | ||
7 : | * it under the terms of the GNU General Public License as published by | ||
8 : | * the Free Software Foundation; either version 2 of the License, or | ||
9 : | * (at your option) any later version. | ||
10 : | * | ||
11 : | * This program is distributed in the hope that it will be useful, | ||
12 : | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 : | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
14 : | * GNU General Public License for more details. | ||
15 : | * | ||
16 : | * You should have received a copy of the GNU General Public License | ||
17 : | * along with this program; if not, write to the Free Software | ||
18 : | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
19 : | * | ||
20 : | *************************************************************************/ | ||
21 : | |||
22 : | /************************************************************************** | ||
23 : | * | ||
24 : | * History: | ||
25 : | * | ||
26 : | * 14.04.2002 added user_to_yuv_c() | ||
27 : | * 30.02.2002 out_yuv dst_stride2 fix | ||
28 : | * 26.02.2002 rgb555, rgb565 | ||
29 : | * 24.11.2001 accuracy improvement to yuyv/vyuy conversion | ||
30 : | * 28.10.2001 total rewrite <pross@cs.rmit.edu.au> | ||
31 : | * | ||
32 : | **************************************************************************/ | ||
33 : | |||
34 : | #include <string.h> // memcpy | ||
35 : | |||
36 : | #include "colorspace.h" | ||
37 : | #include "../divx4.h" | ||
38 : | |||
39 : | // function pointers | ||
40 : | |||
41 : | /* input */ | ||
42 : | color_inputFuncPtr rgb555_to_yv12; | ||
43 : | color_inputFuncPtr rgb565_to_yv12; | ||
44 : | color_inputFuncPtr rgb24_to_yv12; | ||
45 : | color_inputFuncPtr rgb32_to_yv12; | ||
46 : | color_inputFuncPtr yuv_to_yv12; | ||
47 : | color_inputFuncPtr yuyv_to_yv12; | ||
48 : | color_inputFuncPtr uyvy_to_yv12; | ||
49 : | |||
50 : | /* output */ | ||
51 : | color_outputFuncPtr yv12_to_rgb555; | ||
52 : | color_outputFuncPtr yv12_to_rgb565; | ||
53 : | color_outputFuncPtr yv12_to_rgb24; | ||
54 : | color_outputFuncPtr yv12_to_rgb32; | ||
55 : | suxen_drol | 582 | color_outputFuncPtr yv12_to_abgr; |
56 : | color_outputFuncPtr yv12_to_rgba; | ||
57 : | edgomez | 195 | color_outputFuncPtr yv12_to_yuv; |
58 : | color_outputFuncPtr yv12_to_yuyv; | ||
59 : | color_outputFuncPtr yv12_to_uyvy; | ||
60 : | |||
61 : | #define MIN(A,B) ((A)<(B)?(A):(B)) | ||
62 : | #define MAX(A,B) ((A)>(B)?(A):(B)) | ||
63 : | |||
64 : | /* rgb -> yuv def's | ||
65 : | |||
66 : | this following constants are "official spec" | ||
67 : | Video Demystified" (ISBN 1-878707-09-4) | ||
68 : | |||
69 : | rgb<->yuv _is_ lossy, since most programs do the conversion differently | ||
70 : | |||
71 : | SCALEBITS/FIX taken from ffmpeg | ||
72 : | */ | ||
73 : | |||
74 : | #define Y_R_IN 0.257 | ||
75 : | #define Y_G_IN 0.504 | ||
76 : | #define Y_B_IN 0.098 | ||
77 : | #define Y_ADD_IN 16 | ||
78 : | |||
79 : | #define U_R_IN 0.148 | ||
80 : | #define U_G_IN 0.291 | ||
81 : | #define U_B_IN 0.439 | ||
82 : | #define U_ADD_IN 128 | ||
83 : | |||
84 : | #define V_R_IN 0.439 | ||
85 : | #define V_G_IN 0.368 | ||
86 : | #define V_B_IN 0.071 | ||
87 : | #define V_ADD_IN 128 | ||
88 : | |||
89 : | #define SCALEBITS_IN 8 | ||
90 : | #define FIX_IN(x) ((uint16_t) ((x) * (1L<<SCALEBITS_IN) + 0.5)) | ||
91 : | |||
92 : | |||
93 : | int32_t RGB_Y_tab[256]; | ||
94 : | int32_t B_U_tab[256]; | ||
95 : | int32_t G_U_tab[256]; | ||
96 : | int32_t G_V_tab[256]; | ||
97 : | int32_t R_V_tab[256]; | ||
98 : | |||
99 : | |||
100 : | /* rgb555 -> yuv 4:2:0 planar */ | ||
101 : | void | ||
102 : | rgb555_to_yv12_c(uint8_t * y_out, | ||
103 : | uint8_t * u_out, | ||
104 : | uint8_t * v_out, | ||
105 : | uint8_t * src, | ||
106 : | int width, | ||
107 : | int height, | ||
108 : | int y_stride) | ||
109 : | { | ||
110 : | int32_t src_stride = width * 2; | ||
111 : | uint32_t y_dif = y_stride - width; | ||
112 : | uint32_t uv_dif = (y_stride - width) / 2; | ||
113 : | uint32_t x, y; | ||
114 : | |||
115 : | if (height < 0) { | ||
116 : | height = -height; | ||
117 : | src += (height - 1) * src_stride; | ||
118 : | src_stride = -src_stride; | ||
119 : | } | ||
120 : | |||
121 : | |||
122 : | for (y = height / 2; y; y--) { | ||
123 : | // process one 2x2 block per iteration | ||
124 : | for (x = 0; x < (uint32_t) width; x += 2) { | ||
125 : | int rgb, r, g, b, r4, g4, b4; | ||
126 : | |||
127 : | rgb = *(uint16_t *) (src + x * 2); | ||
128 : | b4 = b = (rgb << 3) & 0xf8; | ||
129 : | g4 = g = (rgb >> 2) & 0xf8; | ||
130 : | r4 = r = (rgb >> 7) & 0xf8; | ||
131 : | y_out[0] = | ||
132 : | (uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + | ||
133 : | FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; | ||
134 : | |||
135 : | rgb = *(uint16_t *) (src + x * 2 + src_stride); | ||
136 : | b4 += b = (rgb << 3) & 0xf8; | ||
137 : | g4 += g = (rgb >> 2) & 0xf8; | ||
138 : | r4 += r = (rgb >> 7) & 0xf8; | ||
139 : | y_out[y_stride] = | ||
140 : | (uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + | ||
141 : | FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; | ||
142 : | |||
143 : | rgb = *(uint16_t *) (src + x * 2 + 2); | ||
144 : | b4 += b = (rgb << 3) & 0xf8; | ||
145 : | g4 += g = (rgb >> 2) & 0xf8; | ||
146 : | r4 += r = (rgb >> 7) & 0xf8; | ||
147 : | y_out[1] = | ||
148 : | (uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + | ||
149 : | FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; | ||
150 : | |||
151 : | rgb = *(uint16_t *) (src + x * 2 + src_stride + 2); | ||
152 : | b4 += b = (rgb << 3) & 0xf8; | ||
153 : | g4 += g = (rgb >> 2) & 0xf8; | ||
154 : | r4 += r = (rgb >> 7) & 0xf8; | ||
155 : | y_out[y_stride + 1] = | ||
156 : | (uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + | ||
157 : | FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; | ||
158 : | |||
159 : | *u_out++ = | ||
160 : | (uint8_t) ((-FIX_IN(U_R_IN) * r4 - FIX_IN(U_G_IN) * g4 + | ||
161 : | FIX_IN(U_B_IN) * b4) >> (SCALEBITS_IN + 2)) + | ||
162 : | U_ADD_IN; | ||
163 : | |||
164 : | |||
165 : | *v_out++ = | ||
166 : | (uint8_t) ((FIX_IN(V_R_IN) * r4 - FIX_IN(V_G_IN) * g4 - | ||
167 : | FIX_IN(V_B_IN) * b4) >> (SCALEBITS_IN + 2)) + | ||
168 : | V_ADD_IN; | ||
169 : | |||
170 : | y_out += 2; | ||
171 : | } | ||
172 : | src += src_stride * 2; | ||
173 : | y_out += y_dif + y_stride; | ||
174 : | u_out += uv_dif; | ||
175 : | v_out += uv_dif; | ||
176 : | } | ||
177 : | } | ||
178 : | |||
179 : | |||
180 : | |||
181 : | /* rgb565_to_yuv_c | ||
182 : | NOTE: identical to rgb555 except for shift/mask | ||
183 : | not tested */ | ||
184 : | |||
185 : | void | ||
186 : | rgb565_to_yv12_c(uint8_t * y_out, | ||
187 : | uint8_t * u_out, | ||
188 : | uint8_t * v_out, | ||
189 : | uint8_t * src, | ||
190 : | int width, | ||
191 : | int height, | ||
192 : | int y_stride) | ||
193 : | { | ||
194 : | int32_t src_stride = width * 2; | ||
195 : | |||
196 : | uint32_t y_dif = y_stride - width; | ||
197 : | uint32_t uv_dif = (y_stride - width) / 2; | ||
198 : | uint32_t x, y; | ||
199 : | |||
200 : | if (height < 0) { | ||
201 : | height = -height; | ||
202 : | src += (height - 1) * src_stride; | ||
203 : | src_stride = -src_stride; | ||
204 : | } | ||
205 : | |||
206 : | |||
207 : | for (y = height / 2; y; y--) { | ||
208 : | // process one 2x2 block per iteration | ||
209 : | for (x = 0; x < (uint32_t) width; x += 2) { | ||
210 : | int rgb, r, g, b, r4, g4, b4; | ||
211 : | |||
212 : | rgb = *(uint16_t *) (src + x * 2); | ||
213 : | b4 = b = (rgb << 3) & 0xf8; | ||
214 : | g4 = g = (rgb >> 3) & 0xfc; | ||
215 : | r4 = r = (rgb >> 8) & 0xf8; | ||
216 : | y_out[0] = | ||
217 : | (uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + | ||
218 : | FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; | ||
219 : | |||
220 : | rgb = *(uint16_t *) (src + x * 2 + src_stride); | ||
221 : | b4 += b = (rgb << 3) & 0xf8; | ||
222 : | g4 += g = (rgb >> 3) & 0xfc; | ||
223 : | r4 += r = (rgb >> 8) & 0xf8; | ||
224 : | y_out[y_stride] = | ||
225 : | (uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + | ||
226 : | FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; | ||
227 : | |||
228 : | rgb = *(uint16_t *) (src + x * 2 + 2); | ||
229 : | b4 += b = (rgb << 3) & 0xf8; | ||
230 : | g4 += g = (rgb >> 3) & 0xfc; | ||
231 : | r4 += r = (rgb >> 8) & 0xf8; | ||
232 : | y_out[1] = | ||
233 : | (uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + | ||
234 : | FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; | ||
235 : | |||
236 : | rgb = *(uint16_t *) (src + x * 2 + src_stride + 2); | ||
237 : | b4 += b = (rgb << 3) & 0xf8; | ||
238 : | g4 += g = (rgb >> 3) & 0xfc; | ||
239 : | r4 += r = (rgb >> 8) & 0xf8; | ||
240 : | y_out[y_stride + 1] = | ||
241 : | (uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + | ||
242 : | FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; | ||
243 : | |||
244 : | *u_out++ = | ||
245 : | (uint8_t) ((-FIX_IN(U_R_IN) * r4 - FIX_IN(U_G_IN) * g4 + | ||
246 : | FIX_IN(U_B_IN) * b4) >> (SCALEBITS_IN + 2)) + | ||
247 : | U_ADD_IN; | ||
248 : | |||
249 : | |||
250 : | *v_out++ = | ||
251 : | (uint8_t) ((FIX_IN(V_R_IN) * r4 - FIX_IN(V_G_IN) * g4 - | ||
252 : | FIX_IN(V_B_IN) * b4) >> (SCALEBITS_IN + 2)) + | ||
253 : | V_ADD_IN; | ||
254 : | |||
255 : | y_out += 2; | ||
256 : | } | ||
257 : | src += src_stride * 2; | ||
258 : | y_out += y_dif + y_stride; | ||
259 : | u_out += uv_dif; | ||
260 : | v_out += uv_dif; | ||
261 : | } | ||
262 : | } | ||
263 : | |||
264 : | |||
265 : | |||
266 : | |||
267 : | /* rgb24 -> yuv 4:2:0 planar | ||
268 : | |||
269 : | NOTE: always flips. | ||
270 : | */ | ||
271 : | |||
272 : | void | ||
273 : | rgb24_to_yv12_c(uint8_t * y_out, | ||
274 : | uint8_t * u_out, | ||
275 : | uint8_t * v_out, | ||
276 : | uint8_t * src, | ||
277 : | int width, | ||
278 : | int height, | ||
279 : | int stride) | ||
280 : | { | ||
281 : | uint32_t width3 = (width << 1) + width; /* width * 3 */ | ||
282 : | uint32_t src_dif = (width << 3) + width; /* width3 * 3 */ | ||
283 : | uint32_t y_dif = (stride << 1) - width; | ||
284 : | uint32_t uv_dif = (stride - width) >> 1; | ||
285 : | uint32_t x, y; | ||
286 : | |||
287 : | src += (height - 2) * width3; | ||
288 : | |||
289 : | |||
290 : | for (y = height >> 1; y; y--) { | ||
291 : | for (x = width >> 1; x; x--) { | ||
292 : | uint32_t r, g, b, r4, g4, b4; | ||
293 : | |||
294 : | b4 = b = src[0]; | ||
295 : | g4 = g = src[1]; | ||
296 : | r4 = r = src[2]; | ||
297 : | y_out[stride + 0] = | ||
298 : | (uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + | ||
299 : | FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; | ||
300 : | |||
301 : | b4 += (b = src[3]); | ||
302 : | g4 += (g = src[4]); | ||
303 : | r4 += (r = src[5]); | ||
304 : | y_out[stride + 1] = | ||
305 : | (uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + | ||
306 : | FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; | ||
307 : | |||
308 : | b4 += (b = src[width3 + 0]); | ||
309 : | g4 += (g = src[width3 + 1]); | ||
310 : | r4 += (r = src[width3 + 2]); | ||
311 : | y_out[0] = | ||
312 : | (uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + | ||
313 : | FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; | ||
314 : | |||
315 : | b4 += (b = src[width3 + 3]); | ||
316 : | g4 += (g = src[width3 + 4]); | ||
317 : | r4 += (r = src[width3 + 5]); | ||
318 : | y_out[1] = | ||
319 : | (uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + | ||
320 : | FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; | ||
321 : | |||
322 : | *u_out++ = | ||
323 : | (uint8_t) ((-FIX_IN(U_R_IN) * r4 - FIX_IN(U_G_IN) * g4 + | ||
324 : | FIX_IN(U_B_IN) * b4) >> (SCALEBITS_IN + 2)) + | ||
325 : | U_ADD_IN; | ||
326 : | |||
327 : | |||
328 : | *v_out++ = | ||
329 : | (uint8_t) ((FIX_IN(V_R_IN) * r4 - FIX_IN(V_G_IN) * g4 - | ||
330 : | FIX_IN(V_B_IN) * b4) >> (SCALEBITS_IN + 2)) + | ||
331 : | V_ADD_IN; | ||
332 : | |||
333 : | |||
334 : | src += 6; | ||
335 : | y_out += 2; | ||
336 : | } | ||
337 : | src -= src_dif; | ||
338 : | y_out += y_dif; | ||
339 : | u_out += uv_dif; | ||
340 : | v_out += uv_dif; | ||
341 : | } | ||
342 : | } | ||
343 : | |||
344 : | |||
345 : | /* rgb32 -> yuv 4:2:0 planar | ||
346 : | |||
347 : | NOTE: always flips | ||
348 : | */ | ||
349 : | |||
350 : | void | ||
351 : | rgb32_to_yv12_c(uint8_t * y_out, | ||
352 : | uint8_t * u_out, | ||
353 : | uint8_t * v_out, | ||
354 : | uint8_t * src, | ||
355 : | int width, | ||
356 : | int height, | ||
357 : | int stride) | ||
358 : | { | ||
359 : | uint32_t width4 = (width << 2); /* width * 4 */ | ||
360 : | uint32_t src_dif = 3 * width4; | ||
361 : | uint32_t y_dif = (stride << 1) - width; | ||
362 : | uint32_t uv_dif = (stride - width) >> 1; | ||
363 : | uint32_t x, y; | ||
364 : | |||
365 : | src += (height - 2) * width4; | ||
366 : | |||
367 : | for (y = height >> 1; y; y--) { | ||
368 : | for (x = width >> 1; x; x--) { | ||
369 : | uint32_t r, g, b, r4, g4, b4; | ||
370 : | |||
371 : | b4 = b = src[0]; | ||
372 : | g4 = g = src[1]; | ||
373 : | r4 = r = src[2]; | ||
374 : | y_out[stride + 0] = | ||
375 : | (uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + | ||
376 : | FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; | ||
377 : | |||
378 : | b4 += (b = src[4]); | ||
379 : | g4 += (g = src[5]); | ||
380 : | r4 += (r = src[6]); | ||
381 : | y_out[stride + 1] = | ||
382 : | (uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + | ||
383 : | FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; | ||
384 : | |||
385 : | b4 += (b = src[width4 + 0]); | ||
386 : | g4 += (g = src[width4 + 1]); | ||
387 : | r4 += (r = src[width4 + 2]); | ||
388 : | |||
389 : | y_out[0] = | ||
390 : | (uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + | ||
391 : | FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; | ||
392 : | |||
393 : | b4 += (b = src[width4 + 4]); | ||
394 : | g4 += (g = src[width4 + 5]); | ||
395 : | r4 += (r = src[width4 + 6]); | ||
396 : | y_out[1] = | ||
397 : | (uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + | ||
398 : | FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; | ||
399 : | |||
400 : | *u_out++ = | ||
401 : | (uint8_t) ((-FIX_IN(U_R_IN) * r4 - FIX_IN(U_G_IN) * g4 + | ||
402 : | FIX_IN(U_B_IN) * b4) >> (SCALEBITS_IN + 2)) + | ||
403 : | U_ADD_IN; | ||
404 : | |||
405 : | *v_out++ = | ||
406 : | (uint8_t) ((FIX_IN(V_R_IN) * r4 - FIX_IN(V_G_IN) * g4 - | ||
407 : | FIX_IN(V_B_IN) * b4) >> (SCALEBITS_IN + 2)) + | ||
408 : | V_ADD_IN; | ||
409 : | |||
410 : | src += 8; | ||
411 : | y_out += 2; | ||
412 : | } | ||
413 : | src -= src_dif; | ||
414 : | y_out += y_dif; | ||
415 : | u_out += uv_dif; | ||
416 : | v_out += uv_dif; | ||
417 : | } | ||
418 : | } | ||
419 : | |||
420 : | /* yuv planar -> yuv 4:2:0 planar | ||
421 : | |||
422 : | NOTE: does not flip */ | ||
423 : | |||
424 : | void | ||
425 : | yuv_to_yv12_c(uint8_t * y_out, | ||
426 : | uint8_t * u_out, | ||
427 : | uint8_t * v_out, | ||
428 : | uint8_t * src, | ||
429 : | int width, | ||
430 : | int height, | ||
431 : | int stride) | ||
432 : | { | ||
433 : | uint32_t stride2 = stride >> 1; | ||
434 : | uint32_t width2 = width >> 1; | ||
435 : | uint32_t y; | ||
436 : | |||
437 : | for (y = height; y; y--) { | ||
438 : | memcpy(y_out, src, width); | ||
439 : | src += width; | ||
440 : | y_out += stride; | ||
441 : | } | ||
442 : | |||
443 : | for (y = height >> 1; y; y--) { | ||
444 : | memcpy(u_out, src, width2); | ||
445 : | src += width2; | ||
446 : | u_out += stride2; | ||
447 : | } | ||
448 : | |||
449 : | for (y = height >> 1; y; y--) { | ||
450 : | memcpy(v_out, src, width2); | ||
451 : | src += width2; | ||
452 : | v_out += stride2; | ||
453 : | } | ||
454 : | } | ||
455 : | |||
456 : | |||
457 : | |||
458 : | /* yuyv (yuv2) packed -> yuv 4:2:0 planar | ||
459 : | |||
460 : | NOTE: does not flip */ | ||
461 : | |||
462 : | void | ||
463 : | yuyv_to_yv12_c(uint8_t * y_out, | ||
464 : | uint8_t * u_out, | ||
465 : | uint8_t * v_out, | ||
466 : | uint8_t * src, | ||
467 : | int width, | ||
468 : | int height, | ||
469 : | int stride) | ||
470 : | { | ||
471 : | uint32_t width2 = width + width; | ||
472 : | uint32_t y_dif = stride - width; | ||
473 : | uint32_t uv_dif = y_dif >> 1; | ||
474 : | uint32_t x, y; | ||
475 : | |||
476 : | for (y = height >> 1; y; y--) { | ||
477 : | |||
478 : | for (x = width >> 1; x; x--) { | ||
479 : | *y_out++ = *src++; | ||
480 : | //*u_out++ = *src++; | ||
481 : | *u_out++ = (*(src + width2) + *src) >> 1; | ||
482 : | src++; | ||
483 : | *y_out++ = *src++; | ||
484 : | //*v_out++ = *src++; | ||
485 : | *v_out++ = (*(src + width2) + *src) >> 1; | ||
486 : | src++; | ||
487 : | |||
488 : | } | ||
489 : | |||
490 : | y_out += y_dif; | ||
491 : | u_out += uv_dif; | ||
492 : | v_out += uv_dif; | ||
493 : | |||
494 : | for (x = width >> 1; x; x--) { | ||
495 : | *y_out++ = *src++; | ||
496 : | src++; | ||
497 : | *y_out++ = *src++; | ||
498 : | src++; | ||
499 : | } | ||
500 : | |||
501 : | y_out += y_dif; | ||
502 : | |||
503 : | } | ||
504 : | |||
505 : | } | ||
506 : | |||
507 : | |||
508 : | |||
509 : | /* uyvy packed -> yuv 4:2:0 planar | ||
510 : | |||
511 : | NOTE: does not flip */ | ||
512 : | |||
513 : | |||
514 : | void | ||
515 : | uyvy_to_yv12_c(uint8_t * y_out, | ||
516 : | uint8_t * u_out, | ||
517 : | uint8_t * v_out, | ||
518 : | uint8_t * src, | ||
519 : | int width, | ||
520 : | int height, | ||
521 : | int stride) | ||
522 : | { | ||
523 : | uint32_t width2 = width + width; | ||
524 : | uint32_t y_dif = stride - width; | ||
525 : | uint32_t uv_dif = y_dif >> 1; | ||
526 : | uint32_t x, y; | ||
527 : | |||
528 : | for (y = height >> 1; y; y--) { | ||
529 : | |||
530 : | for (x = width >> 1; x; x--) { | ||
531 : | *u_out++ = *src++; | ||
532 : | // *u_out++ = (*(src+width2) + *src++) >> 1; | ||
533 : | *y_out++ = *src++; | ||
534 : | //*v_out++ = *src++; | ||
535 : | *v_out++ = (*(src + width2) + *src) >> 1; | ||
536 : | src++; | ||
537 : | *y_out++ = *src++; | ||
538 : | } | ||
539 : | |||
540 : | y_out += y_dif; | ||
541 : | u_out += uv_dif;; | ||
542 : | v_out += uv_dif;; | ||
543 : | |||
544 : | for (x = width >> 1; x; x--) { | ||
545 : | src++; | ||
546 : | *y_out++ = *src++; | ||
547 : | src++; | ||
548 : | *y_out++ = *src++; | ||
549 : | } | ||
550 : | |||
551 : | y_out += y_dif; | ||
552 : | } | ||
553 : | } | ||
554 : | |||
555 : | |||
556 : | /* yuv -> rgb def's */ | ||
557 : | |||
558 : | #define RGB_Y_OUT 1.164 | ||
559 : | #define B_U_OUT 2.018 | ||
560 : | #define Y_ADD_OUT 16 | ||
561 : | |||
562 : | #define G_U_OUT 0.391 | ||
563 : | #define G_V_OUT 0.813 | ||
564 : | #define U_ADD_OUT 128 | ||
565 : | |||
566 : | #define R_V_OUT 1.596 | ||
567 : | #define V_ADD_OUT 128 | ||
568 : | |||
569 : | |||
570 : | #define SCALEBITS_OUT 13 | ||
571 : | #define FIX_OUT(x) ((uint16_t) ((x) * (1L<<SCALEBITS_OUT) + 0.5)) | ||
572 : | |||
573 : | |||
574 : | /* initialize rgb lookup tables */ | ||
575 : | |||
576 : | void | ||
577 : | colorspace_init(void) | ||
578 : | { | ||
579 : | int32_t i; | ||
580 : | |||
581 : | for (i = 0; i < 256; i++) { | ||
582 : | RGB_Y_tab[i] = FIX_OUT(RGB_Y_OUT) * (i - Y_ADD_OUT); | ||
583 : | B_U_tab[i] = FIX_OUT(B_U_OUT) * (i - U_ADD_OUT); | ||
584 : | G_U_tab[i] = FIX_OUT(G_U_OUT) * (i - U_ADD_OUT); | ||
585 : | G_V_tab[i] = FIX_OUT(G_V_OUT) * (i - V_ADD_OUT); | ||
586 : | R_V_tab[i] = FIX_OUT(R_V_OUT) * (i - V_ADD_OUT); | ||
587 : | } | ||
588 : | } | ||
589 : | |||
590 : | /* yuv 4:2:0 planar -> rgb555 + very simple error diffusion | ||
591 : | */ | ||
592 : | |||
593 : | #define MK_RGB555(R,G,B) ((MAX(0,MIN(255, R)) << 7) & 0x7c00) | \ | ||
594 : | ((MAX(0,MIN(255, G)) << 2) & 0x03e0) | \ | ||
595 : | ((MAX(0,MIN(255, B)) >> 3) & 0x001f) | ||
596 : | |||
597 : | |||
598 : | void | ||
599 : | yv12_to_rgb555_c(uint8_t * dst, | ||
600 : | int dst_stride, | ||
601 : | uint8_t * y_src, | ||
602 : | uint8_t * u_src, | ||
603 : | uint8_t * v_src, | ||
604 : | int y_stride, | ||
605 : | int uv_stride, | ||
606 : | int width, | ||
607 : | int height) | ||
608 : | { | ||
609 : | suxen_drol | 582 | const uint32_t dst_dif = 2 * dst_stride - 2 * width; |
610 : | edgomez | 195 | int32_t y_dif = 2 * y_stride - width; |
611 : | |||
612 : | suxen_drol | 582 | uint8_t *dst2 = dst + dst_stride; |
613 : | edgomez | 195 | uint8_t *y_src2 = y_src + y_stride; |
614 : | uint32_t x, y; | ||
615 : | |||
616 : | if (height < 0) { | ||
617 : | height = -height; | ||
618 : | y_src += (height - 1) * y_stride; | ||
619 : | y_src2 = y_src - y_stride; | ||
620 : | u_src += (height / 2 - 1) * uv_stride; | ||
621 : | v_src += (height / 2 - 1) * uv_stride; | ||
622 : | y_dif = -width - 2 * y_stride; | ||
623 : | uv_stride = -uv_stride; | ||
624 : | } | ||
625 : | |||
626 : | for (y = height / 2; y; y--) { | ||
627 : | int r, g, b; | ||
628 : | int r2, g2, b2; | ||
629 : | |||
630 : | r = g = b = 0; | ||
631 : | r2 = g2 = b2 = 0; | ||
632 : | |||
633 : | // process one 2x2 block per iteration | ||
634 : | for (x = 0; x < (uint32_t) width / 2; x++) { | ||
635 : | int u, v; | ||
636 : | int b_u, g_uv, r_v, rgb_y; | ||
637 : | |||
638 : | u = u_src[x]; | ||
639 : | v = v_src[x]; | ||
640 : | |||
641 : | b_u = B_U_tab[u]; | ||
642 : | g_uv = G_U_tab[u] + G_V_tab[v]; | ||
643 : | r_v = R_V_tab[v]; | ||
644 : | |||
645 : | rgb_y = RGB_Y_tab[*y_src]; | ||
646 : | b = (b & 0x7) + ((rgb_y + b_u) >> SCALEBITS_OUT); | ||
647 : | g = (g & 0x7) + ((rgb_y - g_uv) >> SCALEBITS_OUT); | ||
648 : | r = (r & 0x7) + ((rgb_y + r_v) >> SCALEBITS_OUT); | ||
649 : | *(uint16_t *) dst = MK_RGB555(r, g, b); | ||
650 : | |||
651 : | y_src++; | ||
652 : | rgb_y = RGB_Y_tab[*y_src]; | ||
653 : | b = (b & 0x7) + ((rgb_y + b_u) >> SCALEBITS_OUT); | ||
654 : | g = (g & 0x7) + ((rgb_y - g_uv) >> SCALEBITS_OUT); | ||
655 : | r = (r & 0x7) + ((rgb_y + r_v) >> SCALEBITS_OUT); | ||
656 : | *(uint16_t *) (dst + 2) = MK_RGB555(r, g, b); | ||
657 : | y_src++; | ||
658 : | |||
659 : | rgb_y = RGB_Y_tab[*y_src2]; | ||
660 : | b2 = (b2 & 0x7) + ((rgb_y + b_u) >> SCALEBITS_OUT); | ||
661 : | g2 = (g2 & 0x7) + ((rgb_y - g_uv) >> SCALEBITS_OUT); | ||
662 : | r2 = (r2 & 0x7) + ((rgb_y + r_v) >> SCALEBITS_OUT); | ||
663 : | *(uint16_t *) (dst2) = MK_RGB555(r2, g2, b2); | ||
664 : | y_src2++; | ||
665 : | |||
666 : | rgb_y = RGB_Y_tab[*y_src2]; | ||
667 : | b2 = (b2 & 0x7) + ((rgb_y + b_u) >> SCALEBITS_OUT); | ||
668 : | g2 = (g2 & 0x7) + ((rgb_y - g_uv) >> SCALEBITS_OUT); | ||
669 : | r2 = (r2 & 0x7) + ((rgb_y + r_v) >> SCALEBITS_OUT); | ||
670 : | *(uint16_t *) (dst2 + 2) = MK_RGB555(r2, g2, b2); | ||
671 : | y_src2++; | ||
672 : | |||
673 : | dst += 4; | ||
674 : | dst2 += 4; | ||
675 : | } | ||
676 : | |||
677 : | dst += dst_dif; | ||
678 : | dst2 += dst_dif; | ||
679 : | |||
680 : | y_src += y_dif; | ||
681 : | y_src2 += y_dif; | ||
682 : | |||
683 : | u_src += uv_stride; | ||
684 : | v_src += uv_stride; | ||
685 : | } | ||
686 : | } | ||
687 : | |||
688 : | |||
689 : | /* yuv 4:2:0 planar -> rgb565 + very simple error diffusion | ||
690 : | NOTE: identical to rgb555 except for shift/mask */ | ||
691 : | |||
692 : | |||
693 : | #define MK_RGB565(R,G,B) ((MAX(0,MIN(255, R)) << 8) & 0xf800) | \ | ||
694 : | ((MAX(0,MIN(255, G)) << 3) & 0x07e0) | \ | ||
695 : | ((MAX(0,MIN(255, B)) >> 3) & 0x001f) | ||
696 : | |||
697 : | void | ||
698 : | yv12_to_rgb565_c(uint8_t * dst, | ||
699 : | int dst_stride, | ||
700 : | uint8_t * y_src, | ||
701 : | uint8_t * u_src, | ||
702 : | uint8_t * v_src, | ||
703 : | int y_stride, | ||
704 : | int uv_stride, | ||
705 : | int width, | ||
706 : | int height) | ||
707 : | { | ||
708 : | suxen_drol | 582 | const uint32_t dst_dif = 2 * dst_stride - 2 * width; |
709 : | edgomez | 195 | int32_t y_dif = 2 * y_stride - width; |
710 : | |||
711 : | suxen_drol | 582 | uint8_t *dst2 = dst + dst_stride; |
712 : | edgomez | 195 | uint8_t *y_src2 = y_src + y_stride; |
713 : | uint32_t x, y; | ||
714 : | |||
715 : | if (height < 0) { // flip image? | ||
716 : | height = -height; | ||
717 : | y_src += (height - 1) * y_stride; | ||
718 : | y_src2 = y_src - y_stride; | ||
719 : | u_src += (height / 2 - 1) * uv_stride; | ||
720 : | v_src += (height / 2 - 1) * uv_stride; | ||
721 : | y_dif = -width - 2 * y_stride; | ||
722 : | uv_stride = -uv_stride; | ||
723 : | } | ||
724 : | |||
725 : | for (y = height / 2; y; y--) { | ||
726 : | int r, g, b; | ||
727 : | int r2, g2, b2; | ||
728 : | |||
729 : | r = g = b = 0; | ||
730 : | r2 = g2 = b2 = 0; | ||
731 : | |||
732 : | // process one 2x2 block per iteration | ||
733 : | for (x = 0; x < (uint32_t) width / 2; x++) { | ||
734 : | int u, v; | ||
735 : | int b_u, g_uv, r_v, rgb_y; | ||
736 : | |||
737 : | u = u_src[x]; | ||
738 : | v = v_src[x]; | ||
739 : | |||
740 : | b_u = B_U_tab[u]; | ||
741 : | g_uv = G_U_tab[u] + G_V_tab[v]; | ||
742 : | r_v = R_V_tab[v]; | ||
743 : | |||
744 : | rgb_y = RGB_Y_tab[*y_src]; | ||
745 : | b = (b & 0x7) + ((rgb_y + b_u) >> SCALEBITS_OUT); | ||
746 : | g = (g & 0x7) + ((rgb_y - g_uv) >> SCALEBITS_OUT); | ||
747 : | r = (r & 0x7) + ((rgb_y + r_v) >> SCALEBITS_OUT); | ||
748 : | *(uint16_t *) dst = MK_RGB565(r, g, b); | ||
749 : | |||
750 : | y_src++; | ||
751 : | rgb_y = RGB_Y_tab[*y_src]; | ||
752 : | b = (b & 0x7) + ((rgb_y + b_u) >> SCALEBITS_OUT); | ||
753 : | g = (g & 0x7) + ((rgb_y - g_uv) >> SCALEBITS_OUT); | ||
754 : | r = (r & 0x7) + ((rgb_y + r_v) >> SCALEBITS_OUT); | ||
755 : | *(uint16_t *) (dst + 2) = MK_RGB565(r, g, b); | ||
756 : | y_src++; | ||
757 : | |||
758 : | rgb_y = RGB_Y_tab[*y_src2]; | ||
759 : | b2 = (b2 & 0x7) + ((rgb_y + b_u) >> SCALEBITS_OUT); | ||
760 : | g2 = (g2 & 0x7) + ((rgb_y - g_uv) >> SCALEBITS_OUT); | ||
761 : | r2 = (r2 & 0x7) + ((rgb_y + r_v) >> SCALEBITS_OUT); | ||
762 : | *(uint16_t *) (dst2) = MK_RGB565(r2, g2, b2); | ||
763 : | y_src2++; | ||
764 : | |||
765 : | rgb_y = RGB_Y_tab[*y_src2]; | ||
766 : | b2 = (b2 & 0x7) + ((rgb_y + b_u) >> SCALEBITS_OUT); | ||
767 : | g2 = (g2 & 0x7) + ((rgb_y - g_uv) >> SCALEBITS_OUT); | ||
768 : | r2 = (r2 & 0x7) + ((rgb_y + r_v) >> SCALEBITS_OUT); | ||
769 : | *(uint16_t *) (dst2 + 2) = MK_RGB565(r2, g2, b2); | ||
770 : | y_src2++; | ||
771 : | |||
772 : | dst += 4; | ||
773 : | dst2 += 4; | ||
774 : | } | ||
775 : | |||
776 : | dst += dst_dif; | ||
777 : | dst2 += dst_dif; | ||
778 : | |||
779 : | y_src += y_dif; | ||
780 : | y_src2 += y_dif; | ||
781 : | |||
782 : | u_src += uv_stride; | ||
783 : | v_src += uv_stride; | ||
784 : | } | ||
785 : | } | ||
786 : | |||
787 : | |||
788 : | suxen_drol | 582 | #define MAKE_YV12_TO_RGB_C(NAME,SIZE,C1,C2,C3,C4) \ |
789 : | void yv12_to_##NAME##_c(uint8_t * dst, \ | ||
790 : | int dst_stride, \ | ||
791 : | uint8_t * y_src, \ | ||
792 : | uint8_t * u_src, \ | ||
793 : | uint8_t * v_src, \ | ||
794 : | int y_stride, \ | ||
795 : | int uv_stride, \ | ||
796 : | int width, \ | ||
797 : | int height) \ | ||
798 : | { \ | ||
799 : | const uint8_t a = 0; /* alpha = 0 */ \ | ||
800 : | const uint32_t dst_dif = 2 * dst_stride - (SIZE) * width; \ | ||
801 : | int32_t y_dif = 2 * y_stride - width; \ | ||
802 : | uint8_t *dst2 = dst + dst_stride; \ | ||
803 : | uint8_t *y_src2 = y_src + y_stride; \ | ||
804 : | uint32_t x, y; \ | ||
805 : | \ | ||
806 : | if (height < 0) { /* flip image? */ \ | ||
807 : | height = -height; \ | ||
808 : | y_src += (height - 1) * y_stride; \ | ||
809 : | y_src2 = y_src - y_stride; \ | ||
810 : | u_src += (height / 2 - 1) * uv_stride; \ | ||
811 : | v_src += (height / 2 - 1) * uv_stride; \ | ||
812 : | y_dif = -width - 2 * y_stride; \ | ||
813 : | uv_stride = -uv_stride; \ | ||
814 : | } \ | ||
815 : | /* process one 2x2 block per iteration */ \ | ||
816 : | for (y = height/2; y; y--) { \ | ||
817 : | \ | ||
818 : | for (x = 0; x < (uint32_t)width/2; x++) { \ | ||
819 : | int u, v; \ | ||
820 : | int b_u, g_uv, r_v, rgb_y; \ | ||
821 : | int r, g, b; \ | ||
822 : | \ | ||
823 : | u = u_src[x]; \ | ||
824 : | v = v_src[x]; \ | ||
825 : | b_u = B_U_tab[u]; \ | ||
826 : | g_uv = G_U_tab[u] + G_V_tab[v]; \ | ||
827 : | r_v = R_V_tab[v]; \ | ||
828 : | \ | ||
829 : | rgb_y = RGB_Y_tab[*y_src]; \ | ||
830 : | b = MAX(0, MIN(255, (rgb_y + b_u) >> SCALEBITS_OUT)); \ | ||
831 : | g = MAX(0, MIN(255, (rgb_y - g_uv) >> SCALEBITS_OUT)); \ | ||
832 : | r = MAX(0, MIN(255, (rgb_y + r_v) >> SCALEBITS_OUT)); \ | ||
833 : | dst[0] = (C1); \ | ||
834 : | dst[1] = (C2); \ | ||
835 : | dst[2] = (C3); \ | ||
836 : | if ((SIZE)>3) dst[3] = (C4); \ | ||
837 : | y_src++; \ | ||
838 : | \ | ||
839 : | rgb_y = RGB_Y_tab[*y_src]; \ | ||
840 : | b = MAX(0, MIN(255, (rgb_y + b_u) >> SCALEBITS_OUT)); \ | ||
841 : | g = MAX(0, MIN(255, (rgb_y - g_uv) >> SCALEBITS_OUT)); \ | ||
842 : | r = MAX(0, MIN(255, (rgb_y + r_v) >> SCALEBITS_OUT)); \ | ||
843 : | dst[(SIZE)+0] = (C1); \ | ||
844 : | dst[(SIZE)+1] = (C2); \ | ||
845 : | dst[(SIZE)+2] = (C3); \ | ||
846 : | if ((SIZE)>3) dst[(SIZE)+3] = (C4); \ | ||
847 : | y_src++; \ | ||
848 : | \ | ||
849 : | rgb_y = RGB_Y_tab[*y_src2]; \ | ||
850 : | b = MAX(0, MIN(255, (rgb_y + b_u) >> SCALEBITS_OUT)); \ | ||
851 : | g = MAX(0, MIN(255, (rgb_y - g_uv) >> SCALEBITS_OUT)); \ | ||
852 : | r = MAX(0, MIN(255, (rgb_y + r_v) >> SCALEBITS_OUT)); \ | ||
853 : | dst2[0] = (C1); \ | ||
854 : | dst2[1] = (C2); \ | ||
855 : | dst2[2] = (C3); \ | ||
856 : | if ((SIZE)>3) dst2[3] = (C4); \ | ||
857 : | y_src2++; \ | ||
858 : | \ | ||
859 : | rgb_y = RGB_Y_tab[*y_src2]; \ | ||
860 : | b = MAX(0, MIN(255, (rgb_y + b_u) >> SCALEBITS_OUT)); \ | ||
861 : | g = MAX(0, MIN(255, (rgb_y - g_uv) >> SCALEBITS_OUT)); \ | ||
862 : | r = MAX(0, MIN(255, (rgb_y + r_v) >> SCALEBITS_OUT)); \ | ||
863 : | dst2[(SIZE)+0] = (C1); \ | ||
864 : | dst2[(SIZE)+1] = (C2); \ | ||
865 : | dst2[(SIZE)+2] = (C3); \ | ||
866 : | if ((SIZE)>3) dst2[(SIZE)+3] = (C4); \ | ||
867 : | y_src2++; \ | ||
868 : | \ | ||
869 : | dst += 2*(SIZE); \ | ||
870 : | dst2 += 2*(SIZE); \ | ||
871 : | } \ | ||
872 : | dst += dst_dif; \ | ||
873 : | dst2 += dst_dif; \ | ||
874 : | y_src += y_dif; \ | ||
875 : | y_src2 += y_dif; \ | ||
876 : | u_src += uv_stride; \ | ||
877 : | v_src += uv_stride; \ | ||
878 : | } \ | ||
879 : | edgomez | 195 | } |
880 : | |||
881 : | suxen_drol | 582 | MAKE_YV12_TO_RGB_C(rgb24,3, b,g,r,0) /* yuv420 -> bgr */ |
882 : | MAKE_YV12_TO_RGB_C(rgb32,4, b,g,r,a) /* yuv420 -> bgra */ | ||
883 : | MAKE_YV12_TO_RGB_C(abgr, 4, a,b,g,r) /* yuv420 -> abgr */ | ||
884 : | MAKE_YV12_TO_RGB_C(rgba, 4, r,g,b,a) /* yuv420 -> rgba */ | ||
885 : | edgomez | 195 | |
886 : | |||
887 : | |||
888 : | /* yuv 4:2:0 planar -> yuv planar */ | ||
889 : | |||
890 : | void | ||
891 : | yv12_to_yuv_c(uint8_t * dst, | ||
892 : | int dst_stride, | ||
893 : | uint8_t * y_src, | ||
894 : | uint8_t * u_src, | ||
895 : | uint8_t * v_src, | ||
896 : | int y_stride, | ||
897 : | int uv_stride, | ||
898 : | int width, | ||
899 : | int height) | ||
900 : | { | ||
901 : | uint32_t dst_stride2 = dst_stride >> 1; | ||
902 : | uint32_t width2 = width >> 1; | ||
903 : | uint32_t y; | ||
904 : | |||
905 : | if (height < 0) { | ||
906 : | height = -height; | ||
907 : | y_src += (height - 1) * y_stride; | ||
908 : | u_src += (height / 2 - 1) * uv_stride; | ||
909 : | v_src += (height / 2 - 1) * uv_stride; | ||
910 : | y_stride = -y_stride; | ||
911 : | uv_stride = -uv_stride; | ||
912 : | } | ||
913 : | |||
914 : | for (y = height; y; y--) { | ||
915 : | memcpy(dst, y_src, width); | ||
916 : | dst += dst_stride; | ||
917 : | y_src += y_stride; | ||
918 : | } | ||
919 : | |||
920 : | for (y = height >> 1; y; y--) { | ||
921 : | memcpy(dst, u_src, width2); | ||
922 : | dst += dst_stride2; | ||
923 : | u_src += uv_stride; | ||
924 : | } | ||
925 : | |||
926 : | for (y = height >> 1; y; y--) { | ||
927 : | memcpy(dst, v_src, width2); | ||
928 : | dst += dst_stride2; | ||
929 : | v_src += uv_stride; | ||
930 : | } | ||
931 : | } | ||
932 : | |||
933 : | |||
934 : | |||
935 : | |||
936 : | /* yuv 4:2:0 planar -> yuyv (yuv2) packed */ | ||
937 : | |||
938 : | void | ||
939 : | yv12_to_yuyv_c(uint8_t * dst, | ||
940 : | int dst_stride, | ||
941 : | uint8_t * y_src, | ||
942 : | uint8_t * u_src, | ||
943 : | uint8_t * v_src, | ||
944 : | int y_stride, | ||
945 : | int uv_stride, | ||
946 : | int width, | ||
947 : | int height) | ||
948 : | { | ||
949 : | suxen_drol | 582 | const uint32_t dst_dif = dst_stride - (2 * width); |
950 : | edgomez | 195 | uint32_t x, y; |
951 : | |||
952 : | if (height < 0) { | ||
953 : | height = -height; | ||
954 : | y_src += (height - 1) * y_stride; | ||
955 : | u_src += (height / 2 - 1) * uv_stride; | ||
956 : | v_src += (height / 2 - 1) * uv_stride; | ||
957 : | y_stride = -y_stride; | ||
958 : | uv_stride = -uv_stride; | ||
959 : | } | ||
960 : | |||
961 : | for (y = 0; y < (uint32_t) height; y++) { | ||
962 : | for (x = 0; x < (uint32_t) width / 2; x++) { | ||
963 : | dst[0] = y_src[2 * x]; | ||
964 : | dst[1] = u_src[x]; | ||
965 : | dst[2] = y_src[2 * x + 1]; | ||
966 : | dst[3] = v_src[x]; | ||
967 : | dst += 4; | ||
968 : | } | ||
969 : | dst += dst_dif; | ||
970 : | y_src += y_stride; | ||
971 : | if (y & 1) { | ||
972 : | u_src += uv_stride; | ||
973 : | v_src += uv_stride; | ||
974 : | } | ||
975 : | } | ||
976 : | } | ||
977 : | |||
978 : | |||
979 : | |||
980 : | /* yuv 4:2:0 planar -> uyvy packed */ | ||
981 : | |||
982 : | void | ||
983 : | yv12_to_uyvy_c(uint8_t * dst, | ||
984 : | int dst_stride, | ||
985 : | uint8_t * y_src, | ||
986 : | uint8_t * u_src, | ||
987 : | uint8_t * v_src, | ||
988 : | int y_stride, | ||
989 : | int uv_stride, | ||
990 : | int width, | ||
991 : | int height) | ||
992 : | { | ||
993 : | suxen_drol | 582 | const uint32_t dst_dif = dst_stride - (2 * width); |
994 : | edgomez | 195 | uint32_t x, y; |
995 : | |||
996 : | if (height < 0) { | ||
997 : | height = -height; | ||
998 : | y_src += (height - 1) * y_stride; | ||
999 : | u_src += (height / 2 - 1) * uv_stride; | ||
1000 : | v_src += (height / 2 - 1) * uv_stride; | ||
1001 : | y_stride = -y_stride; | ||
1002 : | uv_stride = -uv_stride; | ||
1003 : | } | ||
1004 : | |||
1005 : | for (y = 0; y < (uint32_t) height; y++) { | ||
1006 : | for (x = 0; x < (uint32_t) width / 2; x++) { | ||
1007 : | dst[0] = u_src[x]; | ||
1008 : | dst[1] = y_src[2 * x]; | ||
1009 : | dst[2] = v_src[x]; | ||
1010 : | dst[3] = y_src[2 * x + 1]; | ||
1011 : | dst += 4; | ||
1012 : | } | ||
1013 : | dst += dst_dif; | ||
1014 : | y_src += y_stride; | ||
1015 : | if (y & 1) { | ||
1016 : | u_src += uv_stride; | ||
1017 : | v_src += uv_stride; | ||
1018 : | } | ||
1019 : | } | ||
1020 : | } | ||
1021 : | |||
1022 : | |||
1023 : | /* user yuv planar -> yuv 4:2:0 planar | ||
1024 : | |||
1025 : | NOTE: does not flip */ | ||
1026 : | |||
1027 : | void | ||
1028 : | user_to_yuv_c(uint8_t * y_out, | ||
1029 : | uint8_t * u_out, | ||
1030 : | uint8_t * v_out, | ||
1031 : | int stride, | ||
1032 : | DEC_PICTURE * picture, | ||
1033 : | int width, | ||
1034 : | int height) | ||
1035 : | { | ||
1036 : | uint32_t stride2 = stride >> 1; | ||
1037 : | uint32_t width2 = width >> 1; | ||
1038 : | uint32_t y; | ||
1039 : | uint8_t *src; | ||
1040 : | |||
1041 : | src = picture->y; | ||
1042 : | for (y = height; y; y--) { | ||
1043 : | memcpy(y_out, src, width); | ||
1044 : | src += picture->stride_y; | ||
1045 : | y_out += stride; | ||
1046 : | } | ||
1047 : | |||
1048 : | src = picture->u; | ||
1049 : | for (y = height >> 1; y; y--) { | ||
1050 : | memcpy(u_out, src, width2); | ||
1051 : | src += picture->stride_uv; | ||
1052 : | u_out += stride2; | ||
1053 : | } | ||
1054 : | |||
1055 : | src = picture->v; | ||
1056 : | for (y = height >> 1; y; y--) { | ||
1057 : | memcpy(v_out, src, width2); | ||
1058 : | src += picture->stride_uv; | ||
1059 : | v_out += stride2; | ||
1060 : | } | ||
1061 : | } |
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