Commit | Line | Data |
---|---|---|
2ba45a60 DM |
1 | /* |
2 | * Copyright (C) 2001-2011 Michael Niedermayer <michaelni@gmx.at> | |
3 | * | |
4 | * This file is part of FFmpeg. | |
5 | * | |
6 | * FFmpeg is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU Lesser General Public | |
8 | * License as published by the Free Software Foundation; either | |
9 | * version 2.1 of the License, or (at your option) any later version. | |
10 | * | |
11 | * FFmpeg 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 GNU | |
14 | * Lesser General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU Lesser General Public | |
17 | * License along with FFmpeg; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | #ifndef SWSCALE_SWSCALE_INTERNAL_H | |
22 | #define SWSCALE_SWSCALE_INTERNAL_H | |
23 | ||
24 | #include "config.h" | |
25 | ||
26 | #if HAVE_ALTIVEC_H | |
27 | #include <altivec.h> | |
28 | #endif | |
29 | ||
30 | #include "version.h" | |
31 | ||
32 | #include "libavutil/avassert.h" | |
33 | #include "libavutil/avutil.h" | |
34 | #include "libavutil/common.h" | |
35 | #include "libavutil/intreadwrite.h" | |
36 | #include "libavutil/log.h" | |
37 | #include "libavutil/pixfmt.h" | |
38 | #include "libavutil/pixdesc.h" | |
39 | ||
40 | #define STR(s) AV_TOSTRING(s) // AV_STRINGIFY is too long | |
41 | ||
092a9121 | 42 | #define YUVRGB_TABLE_HEADROOM 256 |
2ba45a60 DM |
43 | |
44 | #define MAX_FILTER_SIZE SWS_MAX_FILTER_SIZE | |
45 | ||
46 | #define DITHER1XBPP | |
47 | ||
48 | #if HAVE_BIGENDIAN | |
49 | #define ALT32_CORR (-1) | |
50 | #else | |
51 | #define ALT32_CORR 1 | |
52 | #endif | |
53 | ||
54 | #if ARCH_X86_64 | |
55 | # define APCK_PTR2 8 | |
56 | # define APCK_COEF 16 | |
57 | # define APCK_SIZE 24 | |
58 | #else | |
59 | # define APCK_PTR2 4 | |
60 | # define APCK_COEF 8 | |
61 | # define APCK_SIZE 16 | |
62 | #endif | |
63 | ||
f6fa7814 DM |
64 | #define RETCODE_USE_CASCADE -12345 |
65 | ||
2ba45a60 DM |
66 | struct SwsContext; |
67 | ||
68 | typedef enum SwsDither { | |
69 | SWS_DITHER_NONE = 0, | |
70 | SWS_DITHER_AUTO, | |
71 | SWS_DITHER_BAYER, | |
72 | SWS_DITHER_ED, | |
73 | SWS_DITHER_A_DITHER, | |
74 | SWS_DITHER_X_DITHER, | |
75 | NB_SWS_DITHER, | |
76 | } SwsDither; | |
77 | ||
78 | typedef int (*SwsFunc)(struct SwsContext *context, const uint8_t *src[], | |
79 | int srcStride[], int srcSliceY, int srcSliceH, | |
80 | uint8_t *dst[], int dstStride[]); | |
81 | ||
82 | /** | |
83 | * Write one line of horizontally scaled data to planar output | |
84 | * without any additional vertical scaling (or point-scaling). | |
85 | * | |
86 | * @param src scaled source data, 15bit for 8-10bit output, | |
87 | * 19-bit for 16bit output (in int32_t) | |
88 | * @param dest pointer to the output plane. For >8bit | |
89 | * output, this is in uint16_t | |
90 | * @param dstW width of destination in pixels | |
91 | * @param dither ordered dither array of type int16_t and size 8 | |
92 | * @param offset Dither offset | |
93 | */ | |
94 | typedef void (*yuv2planar1_fn)(const int16_t *src, uint8_t *dest, int dstW, | |
95 | const uint8_t *dither, int offset); | |
96 | ||
97 | /** | |
98 | * Write one line of horizontally scaled data to planar output | |
99 | * with multi-point vertical scaling between input pixels. | |
100 | * | |
101 | * @param filter vertical luma/alpha scaling coefficients, 12bit [0,4096] | |
102 | * @param src scaled luma (Y) or alpha (A) source data, 15bit for 8-10bit output, | |
103 | * 19-bit for 16bit output (in int32_t) | |
104 | * @param filterSize number of vertical input lines to scale | |
105 | * @param dest pointer to output plane. For >8bit | |
106 | * output, this is in uint16_t | |
107 | * @param dstW width of destination pixels | |
108 | * @param offset Dither offset | |
109 | */ | |
110 | typedef void (*yuv2planarX_fn)(const int16_t *filter, int filterSize, | |
111 | const int16_t **src, uint8_t *dest, int dstW, | |
112 | const uint8_t *dither, int offset); | |
113 | ||
114 | /** | |
115 | * Write one line of horizontally scaled chroma to interleaved output | |
116 | * with multi-point vertical scaling between input pixels. | |
117 | * | |
118 | * @param c SWS scaling context | |
119 | * @param chrFilter vertical chroma scaling coefficients, 12bit [0,4096] | |
120 | * @param chrUSrc scaled chroma (U) source data, 15bit for 8-10bit output, | |
121 | * 19-bit for 16bit output (in int32_t) | |
122 | * @param chrVSrc scaled chroma (V) source data, 15bit for 8-10bit output, | |
123 | * 19-bit for 16bit output (in int32_t) | |
124 | * @param chrFilterSize number of vertical chroma input lines to scale | |
125 | * @param dest pointer to the output plane. For >8bit | |
126 | * output, this is in uint16_t | |
127 | * @param dstW width of chroma planes | |
128 | */ | |
129 | typedef void (*yuv2interleavedX_fn)(struct SwsContext *c, | |
130 | const int16_t *chrFilter, | |
131 | int chrFilterSize, | |
132 | const int16_t **chrUSrc, | |
133 | const int16_t **chrVSrc, | |
134 | uint8_t *dest, int dstW); | |
135 | ||
136 | /** | |
137 | * Write one line of horizontally scaled Y/U/V/A to packed-pixel YUV/RGB | |
138 | * output without any additional vertical scaling (or point-scaling). Note | |
139 | * that this function may do chroma scaling, see the "uvalpha" argument. | |
140 | * | |
141 | * @param c SWS scaling context | |
142 | * @param lumSrc scaled luma (Y) source data, 15bit for 8-10bit output, | |
143 | * 19-bit for 16bit output (in int32_t) | |
144 | * @param chrUSrc scaled chroma (U) source data, 15bit for 8-10bit output, | |
145 | * 19-bit for 16bit output (in int32_t) | |
146 | * @param chrVSrc scaled chroma (V) source data, 15bit for 8-10bit output, | |
147 | * 19-bit for 16bit output (in int32_t) | |
148 | * @param alpSrc scaled alpha (A) source data, 15bit for 8-10bit output, | |
149 | * 19-bit for 16bit output (in int32_t) | |
150 | * @param dest pointer to the output plane. For 16bit output, this is | |
151 | * uint16_t | |
152 | * @param dstW width of lumSrc and alpSrc in pixels, number of pixels | |
153 | * to write into dest[] | |
154 | * @param uvalpha chroma scaling coefficient for the second line of chroma | |
155 | * pixels, either 2048 or 0. If 0, one chroma input is used | |
156 | * for 2 output pixels (or if the SWS_FLAG_FULL_CHR_INT flag | |
157 | * is set, it generates 1 output pixel). If 2048, two chroma | |
158 | * input pixels should be averaged for 2 output pixels (this | |
159 | * only happens if SWS_FLAG_FULL_CHR_INT is not set) | |
160 | * @param y vertical line number for this output. This does not need | |
161 | * to be used to calculate the offset in the destination, | |
162 | * but can be used to generate comfort noise using dithering | |
163 | * for some output formats. | |
164 | */ | |
165 | typedef void (*yuv2packed1_fn)(struct SwsContext *c, const int16_t *lumSrc, | |
166 | const int16_t *chrUSrc[2], | |
167 | const int16_t *chrVSrc[2], | |
168 | const int16_t *alpSrc, uint8_t *dest, | |
169 | int dstW, int uvalpha, int y); | |
170 | /** | |
171 | * Write one line of horizontally scaled Y/U/V/A to packed-pixel YUV/RGB | |
172 | * output by doing bilinear scaling between two input lines. | |
173 | * | |
174 | * @param c SWS scaling context | |
175 | * @param lumSrc scaled luma (Y) source data, 15bit for 8-10bit output, | |
176 | * 19-bit for 16bit output (in int32_t) | |
177 | * @param chrUSrc scaled chroma (U) source data, 15bit for 8-10bit output, | |
178 | * 19-bit for 16bit output (in int32_t) | |
179 | * @param chrVSrc scaled chroma (V) source data, 15bit for 8-10bit output, | |
180 | * 19-bit for 16bit output (in int32_t) | |
181 | * @param alpSrc scaled alpha (A) source data, 15bit for 8-10bit output, | |
182 | * 19-bit for 16bit output (in int32_t) | |
183 | * @param dest pointer to the output plane. For 16bit output, this is | |
184 | * uint16_t | |
185 | * @param dstW width of lumSrc and alpSrc in pixels, number of pixels | |
186 | * to write into dest[] | |
187 | * @param yalpha luma/alpha scaling coefficients for the second input line. | |
188 | * The first line's coefficients can be calculated by using | |
189 | * 4096 - yalpha | |
190 | * @param uvalpha chroma scaling coefficient for the second input line. The | |
191 | * first line's coefficients can be calculated by using | |
192 | * 4096 - uvalpha | |
193 | * @param y vertical line number for this output. This does not need | |
194 | * to be used to calculate the offset in the destination, | |
195 | * but can be used to generate comfort noise using dithering | |
196 | * for some output formats. | |
197 | */ | |
198 | typedef void (*yuv2packed2_fn)(struct SwsContext *c, const int16_t *lumSrc[2], | |
199 | const int16_t *chrUSrc[2], | |
200 | const int16_t *chrVSrc[2], | |
201 | const int16_t *alpSrc[2], | |
202 | uint8_t *dest, | |
203 | int dstW, int yalpha, int uvalpha, int y); | |
204 | /** | |
205 | * Write one line of horizontally scaled Y/U/V/A to packed-pixel YUV/RGB | |
206 | * output by doing multi-point vertical scaling between input pixels. | |
207 | * | |
208 | * @param c SWS scaling context | |
209 | * @param lumFilter vertical luma/alpha scaling coefficients, 12bit [0,4096] | |
210 | * @param lumSrc scaled luma (Y) source data, 15bit for 8-10bit output, | |
211 | * 19-bit for 16bit output (in int32_t) | |
212 | * @param lumFilterSize number of vertical luma/alpha input lines to scale | |
213 | * @param chrFilter vertical chroma scaling coefficients, 12bit [0,4096] | |
214 | * @param chrUSrc scaled chroma (U) source data, 15bit for 8-10bit output, | |
215 | * 19-bit for 16bit output (in int32_t) | |
216 | * @param chrVSrc scaled chroma (V) source data, 15bit for 8-10bit output, | |
217 | * 19-bit for 16bit output (in int32_t) | |
218 | * @param chrFilterSize number of vertical chroma input lines to scale | |
219 | * @param alpSrc scaled alpha (A) source data, 15bit for 8-10bit output, | |
220 | * 19-bit for 16bit output (in int32_t) | |
221 | * @param dest pointer to the output plane. For 16bit output, this is | |
222 | * uint16_t | |
223 | * @param dstW width of lumSrc and alpSrc in pixels, number of pixels | |
224 | * to write into dest[] | |
225 | * @param y vertical line number for this output. This does not need | |
226 | * to be used to calculate the offset in the destination, | |
227 | * but can be used to generate comfort noise using dithering | |
228 | * or some output formats. | |
229 | */ | |
230 | typedef void (*yuv2packedX_fn)(struct SwsContext *c, const int16_t *lumFilter, | |
231 | const int16_t **lumSrc, int lumFilterSize, | |
232 | const int16_t *chrFilter, | |
233 | const int16_t **chrUSrc, | |
234 | const int16_t **chrVSrc, int chrFilterSize, | |
235 | const int16_t **alpSrc, uint8_t *dest, | |
236 | int dstW, int y); | |
237 | ||
238 | /** | |
239 | * Write one line of horizontally scaled Y/U/V/A to YUV/RGB | |
240 | * output by doing multi-point vertical scaling between input pixels. | |
241 | * | |
242 | * @param c SWS scaling context | |
243 | * @param lumFilter vertical luma/alpha scaling coefficients, 12bit [0,4096] | |
244 | * @param lumSrc scaled luma (Y) source data, 15bit for 8-10bit output, | |
245 | * 19-bit for 16bit output (in int32_t) | |
246 | * @param lumFilterSize number of vertical luma/alpha input lines to scale | |
247 | * @param chrFilter vertical chroma scaling coefficients, 12bit [0,4096] | |
248 | * @param chrUSrc scaled chroma (U) source data, 15bit for 8-10bit output, | |
249 | * 19-bit for 16bit output (in int32_t) | |
250 | * @param chrVSrc scaled chroma (V) source data, 15bit for 8-10bit output, | |
251 | * 19-bit for 16bit output (in int32_t) | |
252 | * @param chrFilterSize number of vertical chroma input lines to scale | |
253 | * @param alpSrc scaled alpha (A) source data, 15bit for 8-10bit output, | |
254 | * 19-bit for 16bit output (in int32_t) | |
255 | * @param dest pointer to the output planes. For 16bit output, this is | |
256 | * uint16_t | |
257 | * @param dstW width of lumSrc and alpSrc in pixels, number of pixels | |
258 | * to write into dest[] | |
259 | * @param y vertical line number for this output. This does not need | |
260 | * to be used to calculate the offset in the destination, | |
261 | * but can be used to generate comfort noise using dithering | |
262 | * or some output formats. | |
263 | */ | |
264 | typedef void (*yuv2anyX_fn)(struct SwsContext *c, const int16_t *lumFilter, | |
265 | const int16_t **lumSrc, int lumFilterSize, | |
266 | const int16_t *chrFilter, | |
267 | const int16_t **chrUSrc, | |
268 | const int16_t **chrVSrc, int chrFilterSize, | |
269 | const int16_t **alpSrc, uint8_t **dest, | |
270 | int dstW, int y); | |
271 | ||
272 | /* This struct should be aligned on at least a 32-byte boundary. */ | |
273 | typedef struct SwsContext { | |
274 | /** | |
275 | * info on struct for av_log | |
276 | */ | |
277 | const AVClass *av_class; | |
278 | ||
279 | /** | |
280 | * Note that src, dst, srcStride, dstStride will be copied in the | |
281 | * sws_scale() wrapper so they can be freely modified here. | |
282 | */ | |
283 | SwsFunc swscale; | |
284 | int srcW; ///< Width of source luma/alpha planes. | |
285 | int srcH; ///< Height of source luma/alpha planes. | |
286 | int dstH; ///< Height of destination luma/alpha planes. | |
287 | int chrSrcW; ///< Width of source chroma planes. | |
288 | int chrSrcH; ///< Height of source chroma planes. | |
289 | int chrDstW; ///< Width of destination chroma planes. | |
290 | int chrDstH; ///< Height of destination chroma planes. | |
291 | int lumXInc, chrXInc; | |
292 | int lumYInc, chrYInc; | |
293 | enum AVPixelFormat dstFormat; ///< Destination pixel format. | |
294 | enum AVPixelFormat srcFormat; ///< Source pixel format. | |
295 | int dstFormatBpp; ///< Number of bits per pixel of the destination pixel format. | |
296 | int srcFormatBpp; ///< Number of bits per pixel of the source pixel format. | |
297 | int dstBpc, srcBpc; | |
298 | int chrSrcHSubSample; ///< Binary logarithm of horizontal subsampling factor between luma/alpha and chroma planes in source image. | |
299 | int chrSrcVSubSample; ///< Binary logarithm of vertical subsampling factor between luma/alpha and chroma planes in source image. | |
300 | int chrDstHSubSample; ///< Binary logarithm of horizontal subsampling factor between luma/alpha and chroma planes in destination image. | |
301 | int chrDstVSubSample; ///< Binary logarithm of vertical subsampling factor between luma/alpha and chroma planes in destination image. | |
302 | int vChrDrop; ///< Binary logarithm of extra vertical subsampling factor in source image chroma planes specified by user. | |
303 | int sliceDir; ///< Direction that slices are fed to the scaler (1 = top-to-bottom, -1 = bottom-to-top). | |
304 | double param[2]; ///< Input parameters for scaling algorithms that need them. | |
305 | ||
f6fa7814 DM |
306 | /* The cascaded_* fields allow spliting a scaler task into multiple |
307 | * sequential steps, this is for example used to limit the maximum | |
308 | * downscaling factor that needs to be supported in one scaler. | |
309 | */ | |
310 | struct SwsContext *cascaded_context[2]; | |
311 | int cascaded_tmpStride[4]; | |
312 | uint8_t *cascaded_tmp[4]; | |
313 | ||
2ba45a60 DM |
314 | uint32_t pal_yuv[256]; |
315 | uint32_t pal_rgb[256]; | |
316 | ||
317 | /** | |
318 | * @name Scaled horizontal lines ring buffer. | |
319 | * The horizontal scaler keeps just enough scaled lines in a ring buffer | |
320 | * so they may be passed to the vertical scaler. The pointers to the | |
321 | * allocated buffers for each line are duplicated in sequence in the ring | |
322 | * buffer to simplify indexing and avoid wrapping around between lines | |
323 | * inside the vertical scaler code. The wrapping is done before the | |
324 | * vertical scaler is called. | |
325 | */ | |
326 | //@{ | |
327 | int16_t **lumPixBuf; ///< Ring buffer for scaled horizontal luma plane lines to be fed to the vertical scaler. | |
328 | int16_t **chrUPixBuf; ///< Ring buffer for scaled horizontal chroma plane lines to be fed to the vertical scaler. | |
329 | int16_t **chrVPixBuf; ///< Ring buffer for scaled horizontal chroma plane lines to be fed to the vertical scaler. | |
330 | int16_t **alpPixBuf; ///< Ring buffer for scaled horizontal alpha plane lines to be fed to the vertical scaler. | |
331 | int vLumBufSize; ///< Number of vertical luma/alpha lines allocated in the ring buffer. | |
332 | int vChrBufSize; ///< Number of vertical chroma lines allocated in the ring buffer. | |
333 | int lastInLumBuf; ///< Last scaled horizontal luma/alpha line from source in the ring buffer. | |
334 | int lastInChrBuf; ///< Last scaled horizontal chroma line from source in the ring buffer. | |
335 | int lumBufIndex; ///< Index in ring buffer of the last scaled horizontal luma/alpha line from source. | |
336 | int chrBufIndex; ///< Index in ring buffer of the last scaled horizontal chroma line from source. | |
337 | //@} | |
338 | ||
339 | uint8_t *formatConvBuffer; | |
340 | ||
341 | /** | |
342 | * @name Horizontal and vertical filters. | |
343 | * To better understand the following fields, here is a pseudo-code of | |
344 | * their usage in filtering a horizontal line: | |
345 | * @code | |
346 | * for (i = 0; i < width; i++) { | |
347 | * dst[i] = 0; | |
348 | * for (j = 0; j < filterSize; j++) | |
349 | * dst[i] += src[ filterPos[i] + j ] * filter[ filterSize * i + j ]; | |
350 | * dst[i] >>= FRAC_BITS; // The actual implementation is fixed-point. | |
351 | * } | |
352 | * @endcode | |
353 | */ | |
354 | //@{ | |
355 | int16_t *hLumFilter; ///< Array of horizontal filter coefficients for luma/alpha planes. | |
356 | int16_t *hChrFilter; ///< Array of horizontal filter coefficients for chroma planes. | |
357 | int16_t *vLumFilter; ///< Array of vertical filter coefficients for luma/alpha planes. | |
358 | int16_t *vChrFilter; ///< Array of vertical filter coefficients for chroma planes. | |
359 | int32_t *hLumFilterPos; ///< Array of horizontal filter starting positions for each dst[i] for luma/alpha planes. | |
360 | int32_t *hChrFilterPos; ///< Array of horizontal filter starting positions for each dst[i] for chroma planes. | |
361 | int32_t *vLumFilterPos; ///< Array of vertical filter starting positions for each dst[i] for luma/alpha planes. | |
362 | int32_t *vChrFilterPos; ///< Array of vertical filter starting positions for each dst[i] for chroma planes. | |
363 | int hLumFilterSize; ///< Horizontal filter size for luma/alpha pixels. | |
364 | int hChrFilterSize; ///< Horizontal filter size for chroma pixels. | |
365 | int vLumFilterSize; ///< Vertical filter size for luma/alpha pixels. | |
366 | int vChrFilterSize; ///< Vertical filter size for chroma pixels. | |
367 | //@} | |
368 | ||
369 | int lumMmxextFilterCodeSize; ///< Runtime-generated MMXEXT horizontal fast bilinear scaler code size for luma/alpha planes. | |
370 | int chrMmxextFilterCodeSize; ///< Runtime-generated MMXEXT horizontal fast bilinear scaler code size for chroma planes. | |
371 | uint8_t *lumMmxextFilterCode; ///< Runtime-generated MMXEXT horizontal fast bilinear scaler code for luma/alpha planes. | |
372 | uint8_t *chrMmxextFilterCode; ///< Runtime-generated MMXEXT horizontal fast bilinear scaler code for chroma planes. | |
373 | ||
374 | int canMMXEXTBeUsed; | |
375 | ||
376 | int dstY; ///< Last destination vertical line output from last slice. | |
377 | int flags; ///< Flags passed by the user to select scaler algorithm, optimizations, subsampling, etc... | |
378 | void *yuvTable; // pointer to the yuv->rgb table start so it can be freed() | |
379 | // alignment ensures the offset can be added in a single | |
380 | // instruction on e.g. ARM | |
381 | DECLARE_ALIGNED(16, int, table_gV)[256 + 2*YUVRGB_TABLE_HEADROOM]; | |
382 | uint8_t *table_rV[256 + 2*YUVRGB_TABLE_HEADROOM]; | |
383 | uint8_t *table_gU[256 + 2*YUVRGB_TABLE_HEADROOM]; | |
384 | uint8_t *table_bU[256 + 2*YUVRGB_TABLE_HEADROOM]; | |
385 | DECLARE_ALIGNED(16, int32_t, input_rgb2yuv_table)[16+40*4]; // This table can contain both C and SIMD formatted values, the C vales are always at the XY_IDX points | |
386 | #define RY_IDX 0 | |
387 | #define GY_IDX 1 | |
388 | #define BY_IDX 2 | |
389 | #define RU_IDX 3 | |
390 | #define GU_IDX 4 | |
391 | #define BU_IDX 5 | |
392 | #define RV_IDX 6 | |
393 | #define GV_IDX 7 | |
394 | #define BV_IDX 8 | |
395 | #define RGB2YUV_SHIFT 15 | |
396 | ||
397 | int *dither_error[4]; | |
398 | ||
399 | //Colorspace stuff | |
400 | int contrast, brightness, saturation; // for sws_getColorspaceDetails | |
401 | int srcColorspaceTable[4]; | |
402 | int dstColorspaceTable[4]; | |
403 | int srcRange; ///< 0 = MPG YUV range, 1 = JPG YUV range (source image). | |
404 | int dstRange; ///< 0 = MPG YUV range, 1 = JPG YUV range (destination image). | |
405 | int src0Alpha; | |
406 | int dst0Alpha; | |
407 | int srcXYZ; | |
408 | int dstXYZ; | |
409 | int src_h_chr_pos; | |
410 | int dst_h_chr_pos; | |
411 | int src_v_chr_pos; | |
412 | int dst_v_chr_pos; | |
413 | int yuv2rgb_y_offset; | |
414 | int yuv2rgb_y_coeff; | |
415 | int yuv2rgb_v2r_coeff; | |
416 | int yuv2rgb_v2g_coeff; | |
417 | int yuv2rgb_u2g_coeff; | |
418 | int yuv2rgb_u2b_coeff; | |
419 | ||
420 | #define RED_DITHER "0*8" | |
421 | #define GREEN_DITHER "1*8" | |
422 | #define BLUE_DITHER "2*8" | |
423 | #define Y_COEFF "3*8" | |
424 | #define VR_COEFF "4*8" | |
425 | #define UB_COEFF "5*8" | |
426 | #define VG_COEFF "6*8" | |
427 | #define UG_COEFF "7*8" | |
428 | #define Y_OFFSET "8*8" | |
429 | #define U_OFFSET "9*8" | |
430 | #define V_OFFSET "10*8" | |
431 | #define LUM_MMX_FILTER_OFFSET "11*8" | |
432 | #define CHR_MMX_FILTER_OFFSET "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE) | |
433 | #define DSTW_OFFSET "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2" | |
434 | #define ESP_OFFSET "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+8" | |
435 | #define VROUNDER_OFFSET "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+16" | |
436 | #define U_TEMP "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+24" | |
437 | #define V_TEMP "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+32" | |
438 | #define Y_TEMP "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+40" | |
439 | #define ALP_MMX_FILTER_OFFSET "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*2+48" | |
440 | #define UV_OFF_PX "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*3+48" | |
441 | #define UV_OFF_BYTE "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*3+56" | |
442 | #define DITHER16 "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*3+64" | |
443 | #define DITHER32 "11*8+4*4*"AV_STRINGIFY(MAX_FILTER_SIZE)"*3+80" | |
444 | #define DITHER32_INT (11*8+4*4*MAX_FILTER_SIZE*3+80) // value equal to above, used for checking that the struct hasn't been changed by mistake | |
445 | ||
446 | DECLARE_ALIGNED(8, uint64_t, redDither); | |
447 | DECLARE_ALIGNED(8, uint64_t, greenDither); | |
448 | DECLARE_ALIGNED(8, uint64_t, blueDither); | |
449 | ||
450 | DECLARE_ALIGNED(8, uint64_t, yCoeff); | |
451 | DECLARE_ALIGNED(8, uint64_t, vrCoeff); | |
452 | DECLARE_ALIGNED(8, uint64_t, ubCoeff); | |
453 | DECLARE_ALIGNED(8, uint64_t, vgCoeff); | |
454 | DECLARE_ALIGNED(8, uint64_t, ugCoeff); | |
455 | DECLARE_ALIGNED(8, uint64_t, yOffset); | |
456 | DECLARE_ALIGNED(8, uint64_t, uOffset); | |
457 | DECLARE_ALIGNED(8, uint64_t, vOffset); | |
458 | int32_t lumMmxFilter[4 * MAX_FILTER_SIZE]; | |
459 | int32_t chrMmxFilter[4 * MAX_FILTER_SIZE]; | |
460 | int dstW; ///< Width of destination luma/alpha planes. | |
461 | DECLARE_ALIGNED(8, uint64_t, esp); | |
462 | DECLARE_ALIGNED(8, uint64_t, vRounder); | |
463 | DECLARE_ALIGNED(8, uint64_t, u_temp); | |
464 | DECLARE_ALIGNED(8, uint64_t, v_temp); | |
465 | DECLARE_ALIGNED(8, uint64_t, y_temp); | |
466 | int32_t alpMmxFilter[4 * MAX_FILTER_SIZE]; | |
467 | // alignment of these values is not necessary, but merely here | |
468 | // to maintain the same offset across x8632 and x86-64. Once we | |
469 | // use proper offset macros in the asm, they can be removed. | |
470 | DECLARE_ALIGNED(8, ptrdiff_t, uv_off); ///< offset (in pixels) between u and v planes | |
471 | DECLARE_ALIGNED(8, ptrdiff_t, uv_offx2); ///< offset (in bytes) between u and v planes | |
472 | DECLARE_ALIGNED(8, uint16_t, dither16)[8]; | |
473 | DECLARE_ALIGNED(8, uint32_t, dither32)[8]; | |
474 | ||
475 | const uint8_t *chrDither8, *lumDither8; | |
476 | ||
477 | #if HAVE_ALTIVEC | |
478 | vector signed short CY; | |
479 | vector signed short CRV; | |
480 | vector signed short CBU; | |
481 | vector signed short CGU; | |
482 | vector signed short CGV; | |
483 | vector signed short OY; | |
484 | vector unsigned short CSHIFT; | |
485 | vector signed short *vYCoeffsBank, *vCCoeffsBank; | |
486 | #endif | |
487 | ||
488 | int use_mmx_vfilter; | |
489 | ||
490 | /* pre defined color-spaces gamma */ | |
491 | #define XYZ_GAMMA (2.6f) | |
492 | #define RGB_GAMMA (2.2f) | |
493 | int16_t *xyzgamma; | |
494 | int16_t *rgbgamma; | |
495 | int16_t *xyzgammainv; | |
496 | int16_t *rgbgammainv; | |
497 | int16_t xyz2rgb_matrix[3][4]; | |
498 | int16_t rgb2xyz_matrix[3][4]; | |
499 | ||
500 | /* function pointers for swscale() */ | |
501 | yuv2planar1_fn yuv2plane1; | |
502 | yuv2planarX_fn yuv2planeX; | |
503 | yuv2interleavedX_fn yuv2nv12cX; | |
504 | yuv2packed1_fn yuv2packed1; | |
505 | yuv2packed2_fn yuv2packed2; | |
506 | yuv2packedX_fn yuv2packedX; | |
507 | yuv2anyX_fn yuv2anyX; | |
508 | ||
509 | /// Unscaled conversion of luma plane to YV12 for horizontal scaler. | |
510 | void (*lumToYV12)(uint8_t *dst, const uint8_t *src, const uint8_t *src2, const uint8_t *src3, | |
511 | int width, uint32_t *pal); | |
512 | /// Unscaled conversion of alpha plane to YV12 for horizontal scaler. | |
513 | void (*alpToYV12)(uint8_t *dst, const uint8_t *src, const uint8_t *src2, const uint8_t *src3, | |
514 | int width, uint32_t *pal); | |
515 | /// Unscaled conversion of chroma planes to YV12 for horizontal scaler. | |
516 | void (*chrToYV12)(uint8_t *dstU, uint8_t *dstV, | |
517 | const uint8_t *src1, const uint8_t *src2, const uint8_t *src3, | |
518 | int width, uint32_t *pal); | |
519 | ||
520 | /** | |
521 | * Functions to read planar input, such as planar RGB, and convert | |
522 | * internally to Y/UV/A. | |
523 | */ | |
524 | /** @{ */ | |
525 | void (*readLumPlanar)(uint8_t *dst, const uint8_t *src[4], int width, int32_t *rgb2yuv); | |
526 | void (*readChrPlanar)(uint8_t *dstU, uint8_t *dstV, const uint8_t *src[4], | |
527 | int width, int32_t *rgb2yuv); | |
528 | void (*readAlpPlanar)(uint8_t *dst, const uint8_t *src[4], int width, int32_t *rgb2yuv); | |
529 | /** @} */ | |
530 | ||
531 | /** | |
532 | * Scale one horizontal line of input data using a bilinear filter | |
533 | * to produce one line of output data. Compared to SwsContext->hScale(), | |
534 | * please take note of the following caveats when using these: | |
535 | * - Scaling is done using only 7bit instead of 14bit coefficients. | |
536 | * - You can use no more than 5 input pixels to produce 4 output | |
537 | * pixels. Therefore, this filter should not be used for downscaling | |
538 | * by more than ~20% in width (because that equals more than 5/4th | |
539 | * downscaling and thus more than 5 pixels input per 4 pixels output). | |
540 | * - In general, bilinear filters create artifacts during downscaling | |
541 | * (even when <20%), because one output pixel will span more than one | |
542 | * input pixel, and thus some pixels will need edges of both neighbor | |
543 | * pixels to interpolate the output pixel. Since you can use at most | |
544 | * two input pixels per output pixel in bilinear scaling, this is | |
545 | * impossible and thus downscaling by any size will create artifacts. | |
546 | * To enable this type of scaling, set SWS_FLAG_FAST_BILINEAR | |
547 | * in SwsContext->flags. | |
548 | */ | |
549 | /** @{ */ | |
550 | void (*hyscale_fast)(struct SwsContext *c, | |
551 | int16_t *dst, int dstWidth, | |
552 | const uint8_t *src, int srcW, int xInc); | |
553 | void (*hcscale_fast)(struct SwsContext *c, | |
554 | int16_t *dst1, int16_t *dst2, int dstWidth, | |
555 | const uint8_t *src1, const uint8_t *src2, | |
556 | int srcW, int xInc); | |
557 | /** @} */ | |
558 | ||
559 | /** | |
560 | * Scale one horizontal line of input data using a filter over the input | |
561 | * lines, to produce one (differently sized) line of output data. | |
562 | * | |
563 | * @param dst pointer to destination buffer for horizontally scaled | |
564 | * data. If the number of bits per component of one | |
565 | * destination pixel (SwsContext->dstBpc) is <= 10, data | |
566 | * will be 15bpc in 16bits (int16_t) width. Else (i.e. | |
567 | * SwsContext->dstBpc == 16), data will be 19bpc in | |
568 | * 32bits (int32_t) width. | |
569 | * @param dstW width of destination image | |
570 | * @param src pointer to source data to be scaled. If the number of | |
571 | * bits per component of a source pixel (SwsContext->srcBpc) | |
572 | * is 8, this is 8bpc in 8bits (uint8_t) width. Else | |
573 | * (i.e. SwsContext->dstBpc > 8), this is native depth | |
574 | * in 16bits (uint16_t) width. In other words, for 9-bit | |
575 | * YUV input, this is 9bpc, for 10-bit YUV input, this is | |
576 | * 10bpc, and for 16-bit RGB or YUV, this is 16bpc. | |
577 | * @param filter filter coefficients to be used per output pixel for | |
578 | * scaling. This contains 14bpp filtering coefficients. | |
579 | * Guaranteed to contain dstW * filterSize entries. | |
580 | * @param filterPos position of the first input pixel to be used for | |
581 | * each output pixel during scaling. Guaranteed to | |
582 | * contain dstW entries. | |
583 | * @param filterSize the number of input coefficients to be used (and | |
584 | * thus the number of input pixels to be used) for | |
585 | * creating a single output pixel. Is aligned to 4 | |
586 | * (and input coefficients thus padded with zeroes) | |
587 | * to simplify creating SIMD code. | |
588 | */ | |
589 | /** @{ */ | |
590 | void (*hyScale)(struct SwsContext *c, int16_t *dst, int dstW, | |
591 | const uint8_t *src, const int16_t *filter, | |
592 | const int32_t *filterPos, int filterSize); | |
593 | void (*hcScale)(struct SwsContext *c, int16_t *dst, int dstW, | |
594 | const uint8_t *src, const int16_t *filter, | |
595 | const int32_t *filterPos, int filterSize); | |
596 | /** @} */ | |
597 | ||
598 | /// Color range conversion function for luma plane if needed. | |
599 | void (*lumConvertRange)(int16_t *dst, int width); | |
600 | /// Color range conversion function for chroma planes if needed. | |
601 | void (*chrConvertRange)(int16_t *dst1, int16_t *dst2, int width); | |
602 | ||
603 | int needs_hcscale; ///< Set if there are chroma planes to be converted. | |
604 | ||
605 | SwsDither dither; | |
606 | } SwsContext; | |
607 | //FIXME check init (where 0) | |
608 | ||
609 | SwsFunc ff_yuv2rgb_get_func_ptr(SwsContext *c); | |
610 | int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4], | |
611 | int fullRange, int brightness, | |
612 | int contrast, int saturation); | |
613 | void ff_yuv2rgb_init_tables_ppc(SwsContext *c, const int inv_table[4], | |
614 | int brightness, int contrast, int saturation); | |
615 | ||
616 | void updateMMXDitherTables(SwsContext *c, int dstY, int lumBufIndex, int chrBufIndex, | |
617 | int lastInLumBuf, int lastInChrBuf); | |
618 | ||
619 | av_cold void ff_sws_init_range_convert(SwsContext *c); | |
620 | ||
621 | SwsFunc ff_yuv2rgb_init_x86(SwsContext *c); | |
622 | SwsFunc ff_yuv2rgb_init_ppc(SwsContext *c); | |
623 | ||
2ba45a60 DM |
624 | static av_always_inline int is16BPS(enum AVPixelFormat pix_fmt) |
625 | { | |
626 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt); | |
627 | av_assert0(desc); | |
628 | return desc->comp[0].depth_minus1 == 15; | |
629 | } | |
630 | ||
631 | static av_always_inline int is9_OR_10BPS(enum AVPixelFormat pix_fmt) | |
632 | { | |
633 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt); | |
634 | av_assert0(desc); | |
635 | return desc->comp[0].depth_minus1 >= 8 && desc->comp[0].depth_minus1 <= 13; | |
636 | } | |
637 | ||
638 | #define isNBPS(x) is9_OR_10BPS(x) | |
639 | ||
640 | static av_always_inline int isBE(enum AVPixelFormat pix_fmt) | |
641 | { | |
642 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt); | |
643 | av_assert0(desc); | |
644 | return desc->flags & AV_PIX_FMT_FLAG_BE; | |
645 | } | |
646 | ||
647 | static av_always_inline int isYUV(enum AVPixelFormat pix_fmt) | |
648 | { | |
649 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt); | |
650 | av_assert0(desc); | |
651 | return !(desc->flags & AV_PIX_FMT_FLAG_RGB) && desc->nb_components >= 2; | |
652 | } | |
653 | ||
654 | static av_always_inline int isPlanarYUV(enum AVPixelFormat pix_fmt) | |
655 | { | |
656 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt); | |
657 | av_assert0(desc); | |
658 | return ((desc->flags & AV_PIX_FMT_FLAG_PLANAR) && isYUV(pix_fmt)); | |
659 | } | |
660 | ||
661 | static av_always_inline int isRGB(enum AVPixelFormat pix_fmt) | |
662 | { | |
663 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt); | |
664 | av_assert0(desc); | |
665 | return (desc->flags & AV_PIX_FMT_FLAG_RGB); | |
666 | } | |
667 | ||
668 | #if 0 // FIXME | |
669 | #define isGray(x) \ | |
670 | (!(av_pix_fmt_desc_get(x)->flags & AV_PIX_FMT_FLAG_PAL) && \ | |
671 | av_pix_fmt_desc_get(x)->nb_components <= 2) | |
672 | #else | |
673 | #define isGray(x) \ | |
674 | ((x) == AV_PIX_FMT_GRAY8 || \ | |
675 | (x) == AV_PIX_FMT_YA8 || \ | |
676 | (x) == AV_PIX_FMT_GRAY16BE || \ | |
677 | (x) == AV_PIX_FMT_GRAY16LE || \ | |
678 | (x) == AV_PIX_FMT_YA16BE || \ | |
679 | (x) == AV_PIX_FMT_YA16LE) | |
680 | #endif | |
681 | ||
682 | #define isRGBinInt(x) \ | |
683 | ( \ | |
684 | (x) == AV_PIX_FMT_RGB48BE || \ | |
685 | (x) == AV_PIX_FMT_RGB48LE || \ | |
686 | (x) == AV_PIX_FMT_RGB32 || \ | |
687 | (x) == AV_PIX_FMT_RGB32_1 || \ | |
688 | (x) == AV_PIX_FMT_RGB24 || \ | |
689 | (x) == AV_PIX_FMT_RGB565BE || \ | |
690 | (x) == AV_PIX_FMT_RGB565LE || \ | |
691 | (x) == AV_PIX_FMT_RGB555BE || \ | |
692 | (x) == AV_PIX_FMT_RGB555LE || \ | |
693 | (x) == AV_PIX_FMT_RGB444BE || \ | |
694 | (x) == AV_PIX_FMT_RGB444LE || \ | |
695 | (x) == AV_PIX_FMT_RGB8 || \ | |
696 | (x) == AV_PIX_FMT_RGB4 || \ | |
697 | (x) == AV_PIX_FMT_RGB4_BYTE || \ | |
698 | (x) == AV_PIX_FMT_RGBA64BE || \ | |
699 | (x) == AV_PIX_FMT_RGBA64LE || \ | |
700 | (x) == AV_PIX_FMT_MONOBLACK || \ | |
701 | (x) == AV_PIX_FMT_MONOWHITE \ | |
702 | ) | |
703 | #define isBGRinInt(x) \ | |
704 | ( \ | |
705 | (x) == AV_PIX_FMT_BGR48BE || \ | |
706 | (x) == AV_PIX_FMT_BGR48LE || \ | |
707 | (x) == AV_PIX_FMT_BGR32 || \ | |
708 | (x) == AV_PIX_FMT_BGR32_1 || \ | |
709 | (x) == AV_PIX_FMT_BGR24 || \ | |
710 | (x) == AV_PIX_FMT_BGR565BE || \ | |
711 | (x) == AV_PIX_FMT_BGR565LE || \ | |
712 | (x) == AV_PIX_FMT_BGR555BE || \ | |
713 | (x) == AV_PIX_FMT_BGR555LE || \ | |
714 | (x) == AV_PIX_FMT_BGR444BE || \ | |
715 | (x) == AV_PIX_FMT_BGR444LE || \ | |
716 | (x) == AV_PIX_FMT_BGR8 || \ | |
717 | (x) == AV_PIX_FMT_BGR4 || \ | |
718 | (x) == AV_PIX_FMT_BGR4_BYTE || \ | |
719 | (x) == AV_PIX_FMT_BGRA64BE || \ | |
720 | (x) == AV_PIX_FMT_BGRA64LE || \ | |
721 | (x) == AV_PIX_FMT_MONOBLACK || \ | |
722 | (x) == AV_PIX_FMT_MONOWHITE \ | |
723 | ) | |
724 | ||
725 | #define isRGBinBytes(x) ( \ | |
726 | (x) == AV_PIX_FMT_RGB48BE \ | |
727 | || (x) == AV_PIX_FMT_RGB48LE \ | |
728 | || (x) == AV_PIX_FMT_RGBA64BE \ | |
729 | || (x) == AV_PIX_FMT_RGBA64LE \ | |
730 | || (x) == AV_PIX_FMT_RGBA \ | |
731 | || (x) == AV_PIX_FMT_ARGB \ | |
732 | || (x) == AV_PIX_FMT_RGB24 \ | |
733 | ) | |
734 | #define isBGRinBytes(x) ( \ | |
735 | (x) == AV_PIX_FMT_BGR48BE \ | |
736 | || (x) == AV_PIX_FMT_BGR48LE \ | |
737 | || (x) == AV_PIX_FMT_BGRA64BE \ | |
738 | || (x) == AV_PIX_FMT_BGRA64LE \ | |
739 | || (x) == AV_PIX_FMT_BGRA \ | |
740 | || (x) == AV_PIX_FMT_ABGR \ | |
741 | || (x) == AV_PIX_FMT_BGR24 \ | |
742 | ) | |
743 | ||
744 | #define isBayer(x) ( \ | |
745 | (x)==AV_PIX_FMT_BAYER_BGGR8 \ | |
746 | || (x)==AV_PIX_FMT_BAYER_BGGR16LE \ | |
747 | || (x)==AV_PIX_FMT_BAYER_BGGR16BE \ | |
748 | || (x)==AV_PIX_FMT_BAYER_RGGB8 \ | |
749 | || (x)==AV_PIX_FMT_BAYER_RGGB16LE \ | |
750 | || (x)==AV_PIX_FMT_BAYER_RGGB16BE \ | |
751 | || (x)==AV_PIX_FMT_BAYER_GBRG8 \ | |
752 | || (x)==AV_PIX_FMT_BAYER_GBRG16LE \ | |
753 | || (x)==AV_PIX_FMT_BAYER_GBRG16BE \ | |
754 | || (x)==AV_PIX_FMT_BAYER_GRBG8 \ | |
755 | || (x)==AV_PIX_FMT_BAYER_GRBG16LE \ | |
756 | || (x)==AV_PIX_FMT_BAYER_GRBG16BE \ | |
757 | ) | |
758 | ||
759 | #define isAnyRGB(x) \ | |
760 | ( \ | |
761 | isBayer(x) || \ | |
762 | isRGBinInt(x) || \ | |
763 | isBGRinInt(x) || \ | |
764 | isRGB(x) \ | |
765 | ) | |
766 | ||
767 | static av_always_inline int isALPHA(enum AVPixelFormat pix_fmt) | |
768 | { | |
769 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt); | |
770 | av_assert0(desc); | |
771 | if (pix_fmt == AV_PIX_FMT_PAL8) | |
772 | return 1; | |
773 | return desc->flags & AV_PIX_FMT_FLAG_ALPHA; | |
774 | } | |
775 | ||
776 | #if 1 | |
777 | #define isPacked(x) ( \ | |
778 | (x)==AV_PIX_FMT_PAL8 \ | |
779 | || (x)==AV_PIX_FMT_YUYV422 \ | |
780 | || (x)==AV_PIX_FMT_YVYU422 \ | |
781 | || (x)==AV_PIX_FMT_UYVY422 \ | |
782 | || (x)==AV_PIX_FMT_YA8 \ | |
783 | || (x)==AV_PIX_FMT_YA16LE \ | |
784 | || (x)==AV_PIX_FMT_YA16BE \ | |
785 | || isRGBinInt(x) \ | |
786 | || isBGRinInt(x) \ | |
787 | ) | |
788 | #else | |
789 | static av_always_inline int isPacked(enum AVPixelFormat pix_fmt) | |
790 | { | |
791 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt); | |
792 | av_assert0(desc); | |
793 | return ((desc->nb_components >= 2 && !(desc->flags & AV_PIX_FMT_FLAG_PLANAR)) || | |
794 | pix_fmt == AV_PIX_FMT_PAL8); | |
795 | } | |
796 | ||
797 | #endif | |
798 | static av_always_inline int isPlanar(enum AVPixelFormat pix_fmt) | |
799 | { | |
800 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt); | |
801 | av_assert0(desc); | |
802 | return (desc->nb_components >= 2 && (desc->flags & AV_PIX_FMT_FLAG_PLANAR)); | |
803 | } | |
804 | ||
805 | static av_always_inline int isPackedRGB(enum AVPixelFormat pix_fmt) | |
806 | { | |
807 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt); | |
808 | av_assert0(desc); | |
809 | return ((desc->flags & (AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB)) == AV_PIX_FMT_FLAG_RGB); | |
810 | } | |
811 | ||
812 | static av_always_inline int isPlanarRGB(enum AVPixelFormat pix_fmt) | |
813 | { | |
814 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt); | |
815 | av_assert0(desc); | |
816 | return ((desc->flags & (AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB)) == | |
817 | (AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB)); | |
818 | } | |
819 | ||
820 | static av_always_inline int usePal(enum AVPixelFormat pix_fmt) | |
821 | { | |
822 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt); | |
823 | av_assert0(desc); | |
824 | return (desc->flags & AV_PIX_FMT_FLAG_PAL) || (desc->flags & AV_PIX_FMT_FLAG_PSEUDOPAL); | |
825 | } | |
826 | ||
827 | extern const uint64_t ff_dither4[2]; | |
828 | extern const uint64_t ff_dither8[2]; | |
829 | ||
830 | extern const uint8_t ff_dither_2x2_4[3][8]; | |
831 | extern const uint8_t ff_dither_2x2_8[3][8]; | |
832 | extern const uint8_t ff_dither_4x4_16[5][8]; | |
833 | extern const uint8_t ff_dither_8x8_32[9][8]; | |
834 | extern const uint8_t ff_dither_8x8_73[9][8]; | |
835 | extern const uint8_t ff_dither_8x8_128[9][8]; | |
836 | extern const uint8_t ff_dither_8x8_220[9][8]; | |
837 | ||
838 | extern const int32_t ff_yuv2rgb_coeffs[8][4]; | |
839 | ||
840 | extern const AVClass sws_context_class; | |
841 | ||
842 | /** | |
843 | * Set c->swscale to an unscaled converter if one exists for the specific | |
844 | * source and destination formats, bit depths, flags, etc. | |
845 | */ | |
846 | void ff_get_unscaled_swscale(SwsContext *c); | |
847 | void ff_get_unscaled_swscale_ppc(SwsContext *c); | |
848 | void ff_get_unscaled_swscale_arm(SwsContext *c); | |
849 | ||
850 | /** | |
851 | * Return function pointer to fastest main scaler path function depending | |
852 | * on architecture and available optimizations. | |
853 | */ | |
854 | SwsFunc ff_getSwsFunc(SwsContext *c); | |
855 | ||
856 | void ff_sws_init_input_funcs(SwsContext *c); | |
857 | void ff_sws_init_output_funcs(SwsContext *c, | |
858 | yuv2planar1_fn *yuv2plane1, | |
859 | yuv2planarX_fn *yuv2planeX, | |
860 | yuv2interleavedX_fn *yuv2nv12cX, | |
861 | yuv2packed1_fn *yuv2packed1, | |
862 | yuv2packed2_fn *yuv2packed2, | |
863 | yuv2packedX_fn *yuv2packedX, | |
864 | yuv2anyX_fn *yuv2anyX); | |
865 | void ff_sws_init_swscale_ppc(SwsContext *c); | |
866 | void ff_sws_init_swscale_x86(SwsContext *c); | |
867 | ||
868 | void ff_hyscale_fast_c(SwsContext *c, int16_t *dst, int dstWidth, | |
869 | const uint8_t *src, int srcW, int xInc); | |
870 | void ff_hcscale_fast_c(SwsContext *c, int16_t *dst1, int16_t *dst2, | |
871 | int dstWidth, const uint8_t *src1, | |
872 | const uint8_t *src2, int srcW, int xInc); | |
873 | int ff_init_hscaler_mmxext(int dstW, int xInc, uint8_t *filterCode, | |
874 | int16_t *filter, int32_t *filterPos, | |
875 | int numSplits); | |
876 | void ff_hyscale_fast_mmxext(SwsContext *c, int16_t *dst, | |
877 | int dstWidth, const uint8_t *src, | |
878 | int srcW, int xInc); | |
879 | void ff_hcscale_fast_mmxext(SwsContext *c, int16_t *dst1, int16_t *dst2, | |
880 | int dstWidth, const uint8_t *src1, | |
881 | const uint8_t *src2, int srcW, int xInc); | |
882 | ||
883 | static inline void fillPlane16(uint8_t *plane, int stride, int width, int height, int y, | |
884 | int alpha, int bits, const int big_endian) | |
885 | { | |
886 | int i, j; | |
887 | uint8_t *ptr = plane + stride * y; | |
888 | int v = alpha ? 0xFFFF>>(15-bits) : (1<<bits); | |
889 | for (i = 0; i < height; i++) { | |
890 | #define FILL(wfunc) \ | |
891 | for (j = 0; j < width; j++) {\ | |
892 | wfunc(ptr+2*j, v);\ | |
893 | } | |
894 | if (big_endian) { | |
895 | FILL(AV_WB16); | |
896 | } else { | |
897 | FILL(AV_WL16); | |
898 | } | |
899 | ptr += stride; | |
900 | } | |
901 | } | |
902 | ||
903 | #endif /* SWSCALE_SWSCALE_INTERNAL_H */ |