summaryrefslogtreecommitdiffstats
path: root/libswscale/swscale_internal.h
blob: d9bbb6c1e28162a5cc06d33500a55e8a2507a668 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
/*
 * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#ifndef SWSCALE_SWSCALE_INTERNAL_H
#define SWSCALE_SWSCALE_INTERNAL_H

#include "config.h"

#if HAVE_ALTIVEC_H
#include <altivec.h>
#endif

#include "libavutil/avutil.h"

#define STR(s)         AV_TOSTRING(s) //AV_STRINGIFY is too long

#define MAX_FILTER_SIZE 256

#if ARCH_X86
#define VOFW 5120
#else
#define VOFW 2048 // faster on PPC and not tested on others
#endif

#define VOF  (VOFW*2)

#ifdef WORDS_BIGENDIAN
#define ALT32_CORR (-1)
#else
#define ALT32_CORR   1
#endif

#if ARCH_X86_64
#   define APCK_PTR2 8
#   define APCK_COEF 16
#   define APCK_SIZE 24
#else
#   define APCK_PTR2 4
#   define APCK_COEF 8
#   define APCK_SIZE 16
#endif

struct SwsContext;

typedef int (*SwsFunc)(struct SwsContext *context, uint8_t* src[],
                       int srcStride[], int srcSliceY, int srcSliceH,
                       uint8_t* dst[], int dstStride[]);

/* This struct should be aligned on at least a 32-byte boundary. */
typedef struct SwsContext{
    /**
     * info on struct for av_log
     */
    const AVClass *av_class;

    /**
     * Note that src, dst, srcStride, dstStride will be copied in the
     * sws_scale() wrapper so they can be freely modified here.
     */
    SwsFunc swScale;
    int srcW, srcH, dstH;
    int chrSrcW, chrSrcH, chrDstW, chrDstH;
    int lumXInc, chrXInc;
    int lumYInc, chrYInc;
    enum PixelFormat dstFormat, srcFormat;  ///< format 4:2:0 type is always YV12
    int origDstFormat, origSrcFormat;       ///< format
    int chrSrcHSubSample, chrSrcVSubSample;
    int chrIntHSubSample, chrIntVSubSample;
    int chrDstHSubSample, chrDstVSubSample;
    int vChrDrop;
    int sliceDir;
    double param[2];

    uint32_t pal_yuv[256];
    uint32_t pal_rgb[256];

    int16_t **lumPixBuf;
    int16_t **chrPixBuf;
    int16_t **alpPixBuf;
    int16_t *hLumFilter;
    int16_t *hLumFilterPos;
    int16_t *hChrFilter;
    int16_t *hChrFilterPos;
    int16_t *vLumFilter;
    int16_t *vLumFilterPos;
    int16_t *vChrFilter;
    int16_t *vChrFilterPos;

    uint8_t formatConvBuffer[VOF]; //FIXME dynamic allocation, but we have to change a lot of code for this to be useful

    int hLumFilterSize;
    int hChrFilterSize;
    int vLumFilterSize;
    int vChrFilterSize;
    int vLumBufSize;
    int vChrBufSize;

    uint8_t *funnyYCode;
    uint8_t *funnyUVCode;
    int32_t *lumMmx2FilterPos;
    int32_t *chrMmx2FilterPos;
    int16_t *lumMmx2Filter;
    int16_t *chrMmx2Filter;

    int canMMX2BeUsed;

    int lastInLumBuf;
    int lastInChrBuf;
    int lumBufIndex;
    int chrBufIndex;
    int dstY;
    int flags;
    void * yuvTable;            // pointer to the yuv->rgb table start so it can be freed()
    uint8_t * table_rV[256];
    uint8_t * table_gU[256];
    int    table_gV[256];
    uint8_t * table_bU[256];

    //Colorspace stuff
    int contrast, brightness, saturation;    // for sws_getColorspaceDetails
    int srcColorspaceTable[4];
    int dstColorspaceTable[4];
    int srcRange, dstRange;
    int yuv2rgb_y_offset;
    int yuv2rgb_y_coeff;
    int yuv2rgb_v2r_coeff;
    int yuv2rgb_v2g_coeff;
    int yuv2rgb_u2g_coeff;
    int yuv2rgb_u2b_coeff;

#define RED_DITHER            "0*8"
#define GREEN_DITHER          "1*8"
#define BLUE_DITHER           "2*8"
#define Y_COEFF               "3*8"
#define VR_COEFF              "4*8"
#define UB_COEFF              "5*8"
#define VG_COEFF              "6*8"
#define UG_COEFF              "7*8"
#define Y_OFFSET              "8*8"
#define U_OFFSET              "9*8"
#define V_OFFSET              "10*8"
#define LUM_MMX_FILTER_OFFSET "11*8"
#define CHR_MMX_FILTER_OFFSET "11*8+4*4*256"
#define DSTW_OFFSET           "11*8+4*4*256*2" //do not change, it is hardcoded in the ASM
#define ESP_OFFSET            "11*8+4*4*256*2+8"
#define VROUNDER_OFFSET       "11*8+4*4*256*2+16"
#define U_TEMP                "11*8+4*4*256*2+24"
#define V_TEMP                "11*8+4*4*256*2+32"
#define Y_TEMP                "11*8+4*4*256*2+40"
#define ALP_MMX_FILTER_OFFSET "11*8+4*4*256*2+48"

    uint64_t redDither   __attribute__((aligned(8)));
    uint64_t greenDither __attribute__((aligned(8)));
    uint64_t blueDither  __attribute__((aligned(8)));

    uint64_t yCoeff      __attribute__((aligned(8)));
    uint64_t vrCoeff     __attribute__((aligned(8)));
    uint64_t ubCoeff     __attribute__((aligned(8)));
    uint64_t vgCoeff     __attribute__((aligned(8)));
    uint64_t ugCoeff     __attribute__((aligned(8)));
    uint64_t yOffset     __attribute__((aligned(8)));
    uint64_t uOffset     __attribute__((aligned(8)));
    uint64_t vOffset     __attribute__((aligned(8)));
    int32_t  lumMmxFilter[4*MAX_FILTER_SIZE];
    int32_t  chrMmxFilter[4*MAX_FILTER_SIZE];
    int dstW;
    uint64_t esp          __attribute__((aligned(8)));
    uint64_t vRounder     __attribute__((aligned(8)));
    uint64_t u_temp       __attribute__((aligned(8)));
    uint64_t v_temp       __attribute__((aligned(8)));
    uint64_t y_temp       __attribute__((aligned(8)));
    int32_t  alpMmxFilter[4*MAX_FILTER_SIZE];

#if HAVE_ALTIVEC
  vector signed short   CY;
  vector signed short   CRV;
  vector signed short   CBU;
  vector signed short   CGU;
  vector signed short   CGV;
  vector signed short   OY;
  vector unsigned short CSHIFT;
  vector signed short   *vYCoeffsBank, *vCCoeffsBank;
#endif

#if ARCH_BFIN
    uint32_t oy           __attribute__((aligned(4)));
    uint32_t oc           __attribute__((aligned(4)));
    uint32_t zero         __attribute__((aligned(4)));
    uint32_t cy           __attribute__((aligned(4)));
    uint32_t crv          __attribute__((aligned(4)));
    uint32_t rmask        __attribute__((aligned(4)));
    uint32_t cbu          __attribute__((aligned(4)));
    uint32_t bmask        __attribute__((aligned(4)));
    uint32_t cgu          __attribute__((aligned(4)));
    uint32_t cgv          __attribute__((aligned(4)));
    uint32_t gmask        __attribute__((aligned(4)));
#endif

#if HAVE_VIS
    uint64_t sparc_coeffs[10] __attribute__((aligned(8)));
#endif

    /* function pointers for swScale() */
    void (*yuv2nv12X  )(struct SwsContext *c,
                        const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
                        const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
                        uint8_t *dest, uint8_t *uDest,
                        int dstW, int chrDstW, int dstFormat);
    void (*yuv2yuv1   )(struct SwsContext *c,
                        const int16_t *lumSrc, const int16_t *chrSrc, const int16_t *alpSrc,
                        uint8_t *dest,
                        uint8_t *uDest, uint8_t *vDest, uint8_t *aDest,
                        long dstW, long chrDstW);
    void (*yuv2yuvX   )(struct SwsContext *c,
                        const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
                        const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
                        const int16_t **alpSrc,
                        uint8_t *dest,
                        uint8_t *uDest, uint8_t *vDest, uint8_t *aDest,
                        long dstW, long chrDstW);
    void (*yuv2packed1)(struct SwsContext *c,
                        const uint16_t *buf0,
                        const uint16_t *uvbuf0, const uint16_t *uvbuf1,
                        const uint16_t *abuf0,
                        uint8_t *dest,
                        int dstW, int uvalpha, int dstFormat, int flags, int y);
    void (*yuv2packed2)(struct SwsContext *c,
                        const uint16_t *buf0, const uint16_t *buf1,
                        const uint16_t *uvbuf0, const uint16_t *uvbuf1,
                        const uint16_t *abuf0, const uint16_t *abuf1,
                        uint8_t *dest,
                        int dstW, int yalpha, int uvalpha, int y);
    void (*yuv2packedX)(struct SwsContext *c,
                        const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
                        const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
                        const int16_t **alpSrc, uint8_t *dest,
                        long dstW, long dstY);

    void (*hyscale_internal)(uint8_t *dst, const uint8_t *src,
                             long width, uint32_t *pal);
    void (*hascale_internal)(uint8_t *dst, const uint8_t *src,
                             long width, uint32_t *pal);
    void (*hcscale_internal)(uint8_t *dstU, uint8_t *dstV,
                             const uint8_t *src1, const uint8_t *src2,
                             long width, uint32_t *pal);
    void (*hyscale_fast)(struct SwsContext *c,
                         int16_t *dst, int dstWidth,
                         const uint8_t *src, int srcW, int xInc);
    void (*hcscale_fast)(struct SwsContext *c,
                         int16_t *dst, int dstWidth,
                         const uint8_t *src1, const uint8_t *src2,
                         int srcW, int xInc);

    void (*hScale)(int16_t *dst, int dstW, const uint8_t *src, int srcW,
                   int xInc, const int16_t *filter, const int16_t *filterPos,
                   long filterSize);

} SwsContext;
//FIXME check init (where 0)

SwsFunc ff_yuv2rgb_get_func_ptr(SwsContext *c);
int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4],
                             int fullRange, int brightness,
                             int contrast, int saturation);

void ff_yuv2rgb_init_tables_altivec(SwsContext *c, const int inv_table[4],
                                    int brightness, int contrast, int saturation);
SwsFunc ff_yuv2rgb_init_mmx(SwsContext *c);
SwsFunc ff_yuv2rgb_init_vis(SwsContext *c);
SwsFunc ff_yuv2rgb_init_mlib(SwsContext *c);
SwsFunc ff_yuv2rgb_init_altivec(SwsContext *c);
SwsFunc ff_yuv2rgb_get_func_ptr_bfin(SwsContext *c);
void ff_bfin_get_unscaled_swscale(SwsContext *c);
void ff_yuv2packedX_altivec(SwsContext *c,
                            const int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
                            const int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
                            uint8_t *dest, int dstW, int dstY);

const char *sws_format_name(int format);

//FIXME replace this with something faster
#define is16BPS(x)      (           \
           (x)==PIX_FMT_GRAY16BE    \
        || (x)==PIX_FMT_GRAY16LE    \
        || (x)==PIX_FMT_YUV420PLE   \
        || (x)==PIX_FMT_YUV422PLE   \
        || (x)==PIX_FMT_YUV444PLE   \
        || (x)==PIX_FMT_YUV420PBE   \
        || (x)==PIX_FMT_YUV422PBE   \
        || (x)==PIX_FMT_YUV444PBE   \
    )
#define isBE(x) ((x)&1)
#define isPlanar8YUV(x) (           \
           (x)==PIX_FMT_YUV410P     \
        || (x)==PIX_FMT_YUV420P     \
        || (x)==PIX_FMT_YUVA420P    \
        || (x)==PIX_FMT_YUV411P     \
        || (x)==PIX_FMT_YUV422P     \
        || (x)==PIX_FMT_YUV444P     \
        || (x)==PIX_FMT_YUV440P     \
        || (x)==PIX_FMT_NV12        \
        || (x)==PIX_FMT_NV21        \
    )
#define isPlanarYUV(x)  (           \
        isPlanar8YUV(x)             \
        || (x)==PIX_FMT_YUV420PLE   \
        || (x)==PIX_FMT_YUV422PLE   \
        || (x)==PIX_FMT_YUV444PLE   \
        || (x)==PIX_FMT_YUV420PBE   \
        || (x)==PIX_FMT_YUV422PBE   \
        || (x)==PIX_FMT_YUV444PBE   \
    )
#define isYUV(x)        (           \
           (x)==PIX_FMT_UYVY422     \
        || (x)==PIX_FMT_YUYV422     \
        || isPlanarYUV(x)           \
    )
#define isGray(x)       (           \
           (x)==PIX_FMT_GRAY8       \
        || (x)==PIX_FMT_GRAY16BE    \
        || (x)==PIX_FMT_GRAY16LE    \
    )
#define isGray16(x)     (           \
           (x)==PIX_FMT_GRAY16BE    \
        || (x)==PIX_FMT_GRAY16LE    \
    )
#define isRGB(x)        (           \
           (x)==PIX_FMT_RGB32       \
        || (x)==PIX_FMT_RGB32_1     \
        || (x)==PIX_FMT_RGB24       \
        || (x)==PIX_FMT_RGB565      \
        || (x)==PIX_FMT_RGB555      \
        || (x)==PIX_FMT_RGB8        \
        || (x)==PIX_FMT_RGB4        \
        || (x)==PIX_FMT_RGB4_BYTE   \
        || (x)==PIX_FMT_MONOBLACK   \
        || (x)==PIX_FMT_MONOWHITE   \
    )
#define isBGR(x)        (           \
           (x)==PIX_FMT_BGR32       \
        || (x)==PIX_FMT_BGR32_1     \
        || (x)==PIX_FMT_BGR24       \
        || (x)==PIX_FMT_BGR565      \
        || (x)==PIX_FMT_BGR555      \
        || (x)==PIX_FMT_BGR8        \
        || (x)==PIX_FMT_BGR4        \
        || (x)==PIX_FMT_BGR4_BYTE   \
        || (x)==PIX_FMT_MONOBLACK   \
        || (x)==PIX_FMT_MONOWHITE   \
    )
#define isALPHA(x)      (           \
           (x)==PIX_FMT_BGR32       \
        || (x)==PIX_FMT_BGR32_1     \
        || (x)==PIX_FMT_RGB32       \
        || (x)==PIX_FMT_RGB32_1     \
        || (x)==PIX_FMT_YUVA420P    \
    )

static inline int fmt_depth(int fmt)
{
    switch(fmt) {
        case PIX_FMT_BGRA:
        case PIX_FMT_ABGR:
        case PIX_FMT_RGBA:
        case PIX_FMT_ARGB:
            return 32;
        case PIX_FMT_BGR24:
        case PIX_FMT_RGB24:
            return 24;
        case PIX_FMT_BGR565:
        case PIX_FMT_RGB565:
        case PIX_FMT_GRAY16BE:
        case PIX_FMT_GRAY16LE:
            return 16;
        case PIX_FMT_BGR555:
        case PIX_FMT_RGB555:
            return 15;
        case PIX_FMT_BGR8:
        case PIX_FMT_RGB8:
            return 8;
        case PIX_FMT_BGR4:
        case PIX_FMT_RGB4:
        case PIX_FMT_BGR4_BYTE:
        case PIX_FMT_RGB4_BYTE:
            return 4;
        case PIX_FMT_MONOBLACK:
        case PIX_FMT_MONOWHITE:
            return 1;
        default:
            return 0;
    }
}

extern const uint64_t ff_dither4[2];
extern const uint64_t ff_dither8[2];

extern const AVClass sws_context_class;

#endif /* SWSCALE_SWSCALE_INTERNAL_H */