2 * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
4 * This file is part of FFmpeg.
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.
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.
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
21 #ifndef SWSCALE_SWSCALE_INTERNAL_H
22 #define SWSCALE_SWSCALE_INTERNAL_H
30 #include "libavutil/avutil.h"
32 #define STR(s) AV_TOSTRING(s) //AV_STRINGIFY is too long
34 #define MAX_FILTER_SIZE 256
39 #define VOFW 2048 // faster on PPC and not tested on others
45 #define ALT32_CORR (-1)
62 typedef int (*SwsFunc)(struct SwsContext *context, const uint8_t* src[],
63 int srcStride[], int srcSliceY, int srcSliceH,
64 uint8_t* dst[], int dstStride[]);
66 /* This struct should be aligned on at least a 32-byte boundary. */
67 typedef struct SwsContext {
69 * info on struct for av_log
71 const AVClass *av_class;
74 * Note that src, dst, srcStride, dstStride will be copied in the
75 * sws_scale() wrapper so they can be freely modified here.
78 int srcW; ///< Width of source luma/alpha planes.
79 int srcH; ///< Height of source luma/alpha planes.
80 int dstH; ///< Height of destination luma/alpha planes.
81 int chrSrcW; ///< Width of source chroma planes.
82 int chrSrcH; ///< Height of source chroma planes.
83 int chrDstW; ///< Width of destination chroma planes.
84 int chrDstH; ///< Height of destination chroma planes.
87 enum PixelFormat dstFormat; ///< Destination pixel format.
88 enum PixelFormat srcFormat; ///< Source pixel format.
89 int chrSrcHSubSample, chrSrcVSubSample;
90 int chrDstHSubSample, chrDstVSubSample;
93 double param[2]; ///< Input parameters for scaling algorithms that need them.
95 uint32_t pal_yuv[256];
96 uint32_t pal_rgb[256];
102 int16_t *hLumFilterPos;
104 int16_t *hChrFilterPos;
106 int16_t *vLumFilterPos;
108 int16_t *vChrFilterPos;
110 uint8_t formatConvBuffer[VOF]; //FIXME dynamic allocation, but we have to change a lot of code for this to be useful
119 int lumMmx2FilterCodeSize; ///< Runtime-generated MMX2 horizontal fast bilinear scaler code size for luma/alpha planes.
120 int chrMmx2FilterCodeSize; ///< Runtime-generated MMX2 horizontal fast bilinear scaler code size for chroma planes.
121 uint8_t *lumMmx2FilterCode; ///< Runtime-generated MMX2 horizontal fast bilinear scaler code for luma/alpha planes.
122 uint8_t *chrMmx2FilterCode; ///< Runtime-generated MMX2 horizontal fast bilinear scaler code for chroma planes.
130 int dstY; ///< Last destination vertical line output from last slice.
131 int flags; ///< Flags passed by the user to select scaler algorithm, optimizations, subsampling, etc...
132 void * yuvTable; // pointer to the yuv->rgb table start so it can be freed()
133 uint8_t * table_rV[256];
134 uint8_t * table_gU[256];
136 uint8_t * table_bU[256];
139 int contrast, brightness, saturation; // for sws_getColorspaceDetails
140 int srcColorspaceTable[4];
141 int dstColorspaceTable[4];
142 int srcRange; ///< 0 = MPG YUV range, 1 = JPG YUV range (source image).
143 int dstRange; ///< 0 = MPG YUV range, 1 = JPG YUV range (destination image).
144 int yuv2rgb_y_offset;
146 int yuv2rgb_v2r_coeff;
147 int yuv2rgb_v2g_coeff;
148 int yuv2rgb_u2g_coeff;
149 int yuv2rgb_u2b_coeff;
151 #define RED_DITHER "0*8"
152 #define GREEN_DITHER "1*8"
153 #define BLUE_DITHER "2*8"
154 #define Y_COEFF "3*8"
155 #define VR_COEFF "4*8"
156 #define UB_COEFF "5*8"
157 #define VG_COEFF "6*8"
158 #define UG_COEFF "7*8"
159 #define Y_OFFSET "8*8"
160 #define U_OFFSET "9*8"
161 #define V_OFFSET "10*8"
162 #define LUM_MMX_FILTER_OFFSET "11*8"
163 #define CHR_MMX_FILTER_OFFSET "11*8+4*4*256"
164 #define DSTW_OFFSET "11*8+4*4*256*2" //do not change, it is hardcoded in the ASM
165 #define ESP_OFFSET "11*8+4*4*256*2+8"
166 #define VROUNDER_OFFSET "11*8+4*4*256*2+16"
167 #define U_TEMP "11*8+4*4*256*2+24"
168 #define V_TEMP "11*8+4*4*256*2+32"
169 #define Y_TEMP "11*8+4*4*256*2+40"
170 #define ALP_MMX_FILTER_OFFSET "11*8+4*4*256*2+48"
172 DECLARE_ALIGNED(8, uint64_t, redDither);
173 DECLARE_ALIGNED(8, uint64_t, greenDither);
174 DECLARE_ALIGNED(8, uint64_t, blueDither);
176 DECLARE_ALIGNED(8, uint64_t, yCoeff);
177 DECLARE_ALIGNED(8, uint64_t, vrCoeff);
178 DECLARE_ALIGNED(8, uint64_t, ubCoeff);
179 DECLARE_ALIGNED(8, uint64_t, vgCoeff);
180 DECLARE_ALIGNED(8, uint64_t, ugCoeff);
181 DECLARE_ALIGNED(8, uint64_t, yOffset);
182 DECLARE_ALIGNED(8, uint64_t, uOffset);
183 DECLARE_ALIGNED(8, uint64_t, vOffset);
184 int32_t lumMmxFilter[4*MAX_FILTER_SIZE];
185 int32_t chrMmxFilter[4*MAX_FILTER_SIZE];
187 DECLARE_ALIGNED(8, uint64_t, esp);
188 DECLARE_ALIGNED(8, uint64_t, vRounder);
189 DECLARE_ALIGNED(8, uint64_t, u_temp);
190 DECLARE_ALIGNED(8, uint64_t, v_temp);
191 DECLARE_ALIGNED(8, uint64_t, y_temp);
192 int32_t alpMmxFilter[4*MAX_FILTER_SIZE];
195 vector signed short CY;
196 vector signed short CRV;
197 vector signed short CBU;
198 vector signed short CGU;
199 vector signed short CGV;
200 vector signed short OY;
201 vector unsigned short CSHIFT;
202 vector signed short *vYCoeffsBank, *vCCoeffsBank;
206 DECLARE_ALIGNED(4, uint32_t, oy);
207 DECLARE_ALIGNED(4, uint32_t, oc);
208 DECLARE_ALIGNED(4, uint32_t, zero);
209 DECLARE_ALIGNED(4, uint32_t, cy);
210 DECLARE_ALIGNED(4, uint32_t, crv);
211 DECLARE_ALIGNED(4, uint32_t, rmask);
212 DECLARE_ALIGNED(4, uint32_t, cbu);
213 DECLARE_ALIGNED(4, uint32_t, bmask);
214 DECLARE_ALIGNED(4, uint32_t, cgu);
215 DECLARE_ALIGNED(4, uint32_t, cgv);
216 DECLARE_ALIGNED(4, uint32_t, gmask);
220 DECLARE_ALIGNED(8, uint64_t, sparc_coeffs[10]);
223 /* function pointers for swScale() */
224 void (*yuv2nv12X )(struct SwsContext *c,
225 const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
226 const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
227 uint8_t *dest, uint8_t *uDest,
228 int dstW, int chrDstW, int dstFormat);
229 void (*yuv2yuv1 )(struct SwsContext *c,
230 const int16_t *lumSrc, const int16_t *chrSrc, const int16_t *alpSrc,
232 uint8_t *uDest, uint8_t *vDest, uint8_t *aDest,
233 long dstW, long chrDstW);
234 void (*yuv2yuvX )(struct SwsContext *c,
235 const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
236 const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
237 const int16_t **alpSrc,
239 uint8_t *uDest, uint8_t *vDest, uint8_t *aDest,
240 long dstW, long chrDstW);
241 void (*yuv2packed1)(struct SwsContext *c,
242 const uint16_t *buf0,
243 const uint16_t *uvbuf0, const uint16_t *uvbuf1,
244 const uint16_t *abuf0,
246 int dstW, int uvalpha, int dstFormat, int flags, int y);
247 void (*yuv2packed2)(struct SwsContext *c,
248 const uint16_t *buf0, const uint16_t *buf1,
249 const uint16_t *uvbuf0, const uint16_t *uvbuf1,
250 const uint16_t *abuf0, const uint16_t *abuf1,
252 int dstW, int yalpha, int uvalpha, int y);
253 void (*yuv2packedX)(struct SwsContext *c,
254 const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
255 const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
256 const int16_t **alpSrc, uint8_t *dest,
257 long dstW, long dstY);
259 void (*lumToYV12)(uint8_t *dst, const uint8_t *src,
260 long width, uint32_t *pal); ///< Unscaled conversion of luma plane to YV12 for horizontal scaler.
261 void (*alpToYV12)(uint8_t *dst, const uint8_t *src,
262 long width, uint32_t *pal); ///< Unscaled conversion of alpha plane to YV12 for horizontal scaler.
263 void (*chrToYV12)(uint8_t *dstU, uint8_t *dstV,
264 const uint8_t *src1, const uint8_t *src2,
265 long width, uint32_t *pal); ///< Unscaled conversion of chroma planes to YV12 for horizontal scaler.
266 void (*hyscale_fast)(struct SwsContext *c,
267 int16_t *dst, long dstWidth,
268 const uint8_t *src, int srcW, int xInc);
269 void (*hcscale_fast)(struct SwsContext *c,
270 int16_t *dst, long dstWidth,
271 const uint8_t *src1, const uint8_t *src2,
274 void (*hScale)(int16_t *dst, int dstW, const uint8_t *src, int srcW,
275 int xInc, const int16_t *filter, const int16_t *filterPos,
278 void (*lumConvertRange)(uint16_t *dst, int width); ///< Color range conversion function for luma plane if needed.
279 void (*chrConvertRange)(uint16_t *dst, int width); ///< Color range conversion function for chroma planes if needed.
281 int lumSrcOffset; ///< Offset given to luma src pointers passed to horizontal input functions.
282 int chrSrcOffset; ///< Offset given to chroma src pointers passed to horizontal input functions.
283 int alpSrcOffset; ///< Offset given to alpha src pointers passed to horizontal input functions.
285 int needs_hcscale; ///< Set if there are chroma planes to be converted.
288 //FIXME check init (where 0)
290 SwsFunc ff_yuv2rgb_get_func_ptr(SwsContext *c);
291 int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4],
292 int fullRange, int brightness,
293 int contrast, int saturation);
295 void ff_yuv2rgb_init_tables_altivec(SwsContext *c, const int inv_table[4],
296 int brightness, int contrast, int saturation);
297 SwsFunc ff_yuv2rgb_init_mmx(SwsContext *c);
298 SwsFunc ff_yuv2rgb_init_vis(SwsContext *c);
299 SwsFunc ff_yuv2rgb_init_mlib(SwsContext *c);
300 SwsFunc ff_yuv2rgb_init_altivec(SwsContext *c);
301 SwsFunc ff_yuv2rgb_get_func_ptr_bfin(SwsContext *c);
302 void ff_bfin_get_unscaled_swscale(SwsContext *c);
303 void ff_yuv2packedX_altivec(SwsContext *c,
304 const int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
305 const int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
306 uint8_t *dest, int dstW, int dstY);
308 const char *sws_format_name(enum PixelFormat format);
310 //FIXME replace this with something faster
311 #define is16BPS(x) ( \
312 (x)==PIX_FMT_GRAY16BE \
313 || (x)==PIX_FMT_GRAY16LE \
314 || (x)==PIX_FMT_RGB48BE \
315 || (x)==PIX_FMT_RGB48LE \
316 || (x)==PIX_FMT_YUV420P16LE \
317 || (x)==PIX_FMT_YUV422P16LE \
318 || (x)==PIX_FMT_YUV444P16LE \
319 || (x)==PIX_FMT_YUV420P16BE \
320 || (x)==PIX_FMT_YUV422P16BE \
321 || (x)==PIX_FMT_YUV444P16BE \
323 #define isBE(x) ((x)&1)
324 #define isPlanar8YUV(x) ( \
325 (x)==PIX_FMT_YUV410P \
326 || (x)==PIX_FMT_YUV420P \
327 || (x)==PIX_FMT_YUVA420P \
328 || (x)==PIX_FMT_YUV411P \
329 || (x)==PIX_FMT_YUV422P \
330 || (x)==PIX_FMT_YUV444P \
331 || (x)==PIX_FMT_YUV440P \
332 || (x)==PIX_FMT_NV12 \
333 || (x)==PIX_FMT_NV21 \
335 #define isPlanarYUV(x) ( \
337 || (x)==PIX_FMT_YUV420P16LE \
338 || (x)==PIX_FMT_YUV422P16LE \
339 || (x)==PIX_FMT_YUV444P16LE \
340 || (x)==PIX_FMT_YUV420P16BE \
341 || (x)==PIX_FMT_YUV422P16BE \
342 || (x)==PIX_FMT_YUV444P16BE \
345 (x)==PIX_FMT_UYVY422 \
346 || (x)==PIX_FMT_YUYV422 \
349 #define isGray(x) ( \
351 || (x)==PIX_FMT_GRAY16BE \
352 || (x)==PIX_FMT_GRAY16LE \
354 #define isGray16(x) ( \
355 (x)==PIX_FMT_GRAY16BE \
356 || (x)==PIX_FMT_GRAY16LE \
359 (x)==PIX_FMT_RGB48BE \
360 || (x)==PIX_FMT_RGB48LE \
361 || (x)==PIX_FMT_RGB32 \
362 || (x)==PIX_FMT_RGB32_1 \
363 || (x)==PIX_FMT_RGB24 \
364 || (x)==PIX_FMT_RGB565 \
365 || (x)==PIX_FMT_RGB555 \
366 || (x)==PIX_FMT_RGB8 \
367 || (x)==PIX_FMT_RGB4 \
368 || (x)==PIX_FMT_RGB4_BYTE \
369 || (x)==PIX_FMT_MONOBLACK \
370 || (x)==PIX_FMT_MONOWHITE \
374 || (x)==PIX_FMT_BGR32_1 \
375 || (x)==PIX_FMT_BGR24 \
376 || (x)==PIX_FMT_BGR565 \
377 || (x)==PIX_FMT_BGR555 \
378 || (x)==PIX_FMT_BGR8 \
379 || (x)==PIX_FMT_BGR4 \
380 || (x)==PIX_FMT_BGR4_BYTE \
381 || (x)==PIX_FMT_MONOBLACK \
382 || (x)==PIX_FMT_MONOWHITE \
384 #define isALPHA(x) ( \
386 || (x)==PIX_FMT_BGR32_1 \
387 || (x)==PIX_FMT_RGB32 \
388 || (x)==PIX_FMT_RGB32_1 \
389 || (x)==PIX_FMT_YUVA420P \
392 static inline int fmt_depth(enum PixelFormat fmt)
395 case PIX_FMT_RGB48BE:
396 case PIX_FMT_RGB48LE:
408 case PIX_FMT_GRAY16BE:
409 case PIX_FMT_GRAY16LE:
419 case PIX_FMT_BGR4_BYTE:
420 case PIX_FMT_RGB4_BYTE:
422 case PIX_FMT_MONOBLACK:
423 case PIX_FMT_MONOWHITE:
430 extern const uint64_t ff_dither4[2];
431 extern const uint64_t ff_dither8[2];
433 extern const AVClass sws_context_class;
435 #endif /* SWSCALE_SWSCALE_INTERNAL_H */