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FFmpeg/libswscale/swscale_internal.h

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  1. /*

  2.  * Copyright (C) 2001-2003 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_INTERNAL_H

  22. #define SWSCALE_INTERNAL_H

  23. 

  24. #ifdef HAVE_ALTIVEC_H

  25. #include <altivec.h>

  26. #endif

  27. 

  28. #include "avutil.h"

  29. 

  30. #ifdef CONFIG_DARWIN

  31. #define AVV(x...) (x)

  32. #else

  33. #define AVV(x...) {x}

  34. #endif

  35. 

  36. #define MAX_FILTER_SIZE 256

  37. 

  38. typedef int (*SwsFunc)(struct SwsContext *context, uint8_t* src[], int srcStride[], int srcSliceY,

  39.              int srcSliceH, uint8_t* dst[], int dstStride[]);

  40. 

  41. /* this struct should be aligned on at least 32-byte boundary */

  42. typedef struct SwsContext{

  43.     /**

  44.      * info on struct for av_log

  45.      */

  46.     AVClass *av_class;

  47. 

  48.     /**

  49.      *

  50.      * Note the src,dst,srcStride,dstStride will be copied, in the sws_scale() warper so they can freely be modified here

  51.      */

  52.     SwsFunc swScale;

  53.     int srcW, srcH, dstH;

  54.     int chrSrcW, chrSrcH, chrDstW, chrDstH;

  55.     int lumXInc, chrXInc;

  56.     int lumYInc, chrYInc;

  57.     int dstFormat, srcFormat;               ///< format 4:2:0 type is always YV12

  58.     int origDstFormat, origSrcFormat;       ///< format

  59.     int chrSrcHSubSample, chrSrcVSubSample;

  60.     int chrIntHSubSample, chrIntVSubSample;

  61.     int chrDstHSubSample, chrDstVSubSample;

  62.     int vChrDrop;

  63.     int sliceDir;

  64.     double param[2];

  65. 

  66.     int16_t **lumPixBuf;

  67.     int16_t **chrPixBuf;

  68.     int16_t *hLumFilter;

  69.     int16_t *hLumFilterPos;

  70.     int16_t *hChrFilter;

  71.     int16_t *hChrFilterPos;

  72.     int16_t *vLumFilter;

  73.     int16_t *vLumFilterPos;

  74.     int16_t *vChrFilter;

  75.     int16_t *vChrFilterPos;

  76. 

  77.     uint8_t formatConvBuffer[4000]; //FIXME dynamic alloc, but we have to change a lot of code for this to be useful

  78. 

  79.     int hLumFilterSize;

  80.     int hChrFilterSize;

  81.     int vLumFilterSize;

  82.     int vChrFilterSize;

  83.     int vLumBufSize;

  84.     int vChrBufSize;

  85. 

  86.     uint8_t *funnyYCode;

  87.     uint8_t *funnyUVCode;

  88.     int32_t *lumMmx2FilterPos;

  89.     int32_t *chrMmx2FilterPos;

  90.     int16_t *lumMmx2Filter;

  91.     int16_t *chrMmx2Filter;

  92. 

  93.     int canMMX2BeUsed;

  94. 

  95.     int lastInLumBuf;

  96.     int lastInChrBuf;

  97.     int lumBufIndex;

  98.     int chrBufIndex;

  99.     int dstY;

  100.     int flags;

  101.     void * yuvTable;            // pointer to the yuv->rgb table start so it can be freed()

  102.     uint8_t * table_rV[256];

  103.     uint8_t * table_gU[256];

  104.     int    table_gV[256];

  105.     uint8_t * table_bU[256];

  106. 

  107.     //Colorspace stuff

  108.     int contrast, brightness, saturation;    // for sws_getColorspaceDetails

  109.     int srcColorspaceTable[4];

  110.     int dstColorspaceTable[4];

  111.     int srcRange, dstRange;

  112. 

  113. #define RED_DITHER            "0*8"

  114. #define GREEN_DITHER          "1*8"

  115. #define BLUE_DITHER           "2*8"

  116. #define Y_COEFF               "3*8"

  117. #define VR_COEFF              "4*8"

  118. #define UB_COEFF              "5*8"

  119. #define VG_COEFF              "6*8"

  120. #define UG_COEFF              "7*8"

  121. #define Y_OFFSET              "8*8"

  122. #define U_OFFSET              "9*8"

  123. #define V_OFFSET              "10*8"

  124. #define LUM_MMX_FILTER_OFFSET "11*8"

  125. #define CHR_MMX_FILTER_OFFSET "11*8+4*4*256"

  126. #define DSTW_OFFSET           "11*8+4*4*256*2" //do not change, it is hardcoded in the asm

  127. #define ESP_OFFSET            "11*8+4*4*256*2+8"

  128. #define VROUNDER_OFFSET       "11*8+4*4*256*2+16"

  129. #define U_TEMP                "11*8+4*4*256*2+24"

  130. #define V_TEMP                "11*8+4*4*256*2+32"

  131. 

  132.     uint64_t redDither   __attribute__((aligned(8)));

  133.     uint64_t greenDither __attribute__((aligned(8)));

  134.     uint64_t blueDither  __attribute__((aligned(8)));

  135. 

  136.     uint64_t yCoeff      __attribute__((aligned(8)));

  137.     uint64_t vrCoeff     __attribute__((aligned(8)));

  138.     uint64_t ubCoeff     __attribute__((aligned(8)));

  139.     uint64_t vgCoeff     __attribute__((aligned(8)));

  140.     uint64_t ugCoeff     __attribute__((aligned(8)));

  141.     uint64_t yOffset     __attribute__((aligned(8)));

  142.     uint64_t uOffset     __attribute__((aligned(8)));

  143.     uint64_t vOffset     __attribute__((aligned(8)));

  144.     int32_t  lumMmxFilter[4*MAX_FILTER_SIZE];

  145.     int32_t  chrMmxFilter[4*MAX_FILTER_SIZE];

  146.     int dstW;

  147.     uint64_t esp          __attribute__((aligned(8)));

  148.     uint64_t vRounder     __attribute__((aligned(8)));

  149.     uint64_t u_temp       __attribute__((aligned(8)));

  150.     uint64_t v_temp       __attribute__((aligned(8)));

  151. 

  152. #ifdef HAVE_ALTIVEC

  153. 

  154.   vector signed short   CY;

  155.   vector signed short   CRV;

  156.   vector signed short   CBU;

  157.   vector signed short   CGU;

  158.   vector signed short   CGV;

  159.   vector signed short   OY;

  160.   vector unsigned short CSHIFT;

  161.   vector signed short   *vYCoeffsBank, *vCCoeffsBank;

  162. 

  163. #endif

  164. 

  165. 

  166. #ifdef ARCH_BFIN

  167.     uint32_t oy           __attribute__((aligned(4)));

  168.     uint32_t oc           __attribute__((aligned(4)));

  169.     uint32_t zero         __attribute__((aligned(4)));

  170.     uint32_t cy           __attribute__((aligned(4)));

  171.     uint32_t crv          __attribute__((aligned(4)));

  172.     uint32_t rmask        __attribute__((aligned(4)));

  173.     uint32_t cbu          __attribute__((aligned(4)));

  174.     uint32_t bmask        __attribute__((aligned(4)));

  175.     uint32_t cgu          __attribute__((aligned(4)));

  176.     uint32_t cgv          __attribute__((aligned(4)));

  177.     uint32_t gmask        __attribute__((aligned(4)));

  178. #endif

  179. 

  180. #ifdef HAVE_VIS

  181.     uint64_t sparc_coeffs[10] __attribute__((aligned(8)));

  182. #endif

  183. 

  184. } SwsContext;

  185. //FIXME check init (where 0)

  186. 

  187. SwsFunc yuv2rgb_get_func_ptr (SwsContext *c);

  188. int yuv2rgb_c_init_tables (SwsContext *c, const int inv_table[4], int fullRange, int brightness, int contrast, int saturation);

  189. 

  190. char *sws_format_name(int format);

  191. 

  192. //FIXME replace this with something faster

  193. #define isPlanarYUV(x)  (           \

  194.            (x)==PIX_FMT_YUV410P     \

  195.         || (x)==PIX_FMT_YUV420P     \

  196.         || (x)==PIX_FMT_YUV411P     \

  197.         || (x)==PIX_FMT_YUV422P     \

  198.         || (x)==PIX_FMT_YUV444P     \

  199.         || (x)==PIX_FMT_YUV440P     \

  200.         || (x)==PIX_FMT_NV12        \

  201.         || (x)==PIX_FMT_NV21        \

  202.     )

  203. #define isYUV(x)        (           \

  204.            (x)==PIX_FMT_UYVY422     \

  205.         || (x)==PIX_FMT_YUYV422     \

  206.         || isPlanarYUV(x)           \

  207.     )

  208. #define isGray(x)       (           \

  209.            (x)==PIX_FMT_GRAY8       \

  210.         || (x)==PIX_FMT_GRAY16BE    \

  211.         || (x)==PIX_FMT_GRAY16LE    \

  212.     )

  213. #define isGray16(x)     (           \

  214.            (x)==PIX_FMT_GRAY16BE    \

  215.         || (x)==PIX_FMT_GRAY16LE    \

  216.     )

  217. #define isRGB(x)        (           \

  218.            (x)==PIX_FMT_BGR32       \

  219.         || (x)==PIX_FMT_RGB24       \

  220.         || (x)==PIX_FMT_RGB565      \

  221.         || (x)==PIX_FMT_RGB555      \

  222.         || (x)==PIX_FMT_RGB8        \

  223.         || (x)==PIX_FMT_RGB4        \

  224.         || (x)==PIX_FMT_RGB4_BYTE   \

  225.         || (x)==PIX_FMT_MONOBLACK   \

  226.     )

  227. #define isBGR(x)        (           \

  228.            (x)==PIX_FMT_RGB32       \

  229.         || (x)==PIX_FMT_BGR24       \

  230.         || (x)==PIX_FMT_BGR565      \

  231.         || (x)==PIX_FMT_BGR555      \

  232.         || (x)==PIX_FMT_BGR8        \

  233.         || (x)==PIX_FMT_BGR4        \

  234.         || (x)==PIX_FMT_BGR4_BYTE   \

  235.         || (x)==PIX_FMT_MONOBLACK   \

  236.     )

  237. 

  238. static inline int fmt_depth(int fmt)

  239. {

  240.     switch(fmt) {

  241.         case PIX_FMT_BGRA:

  242.         case PIX_FMT_ABGR:

  243.         case PIX_FMT_RGBA:

  244.         case PIX_FMT_ARGB:

  245.             return 32;

  246.         case PIX_FMT_BGR24:

  247.         case PIX_FMT_RGB24:

  248.             return 24;

  249.         case PIX_FMT_BGR565:

  250.         case PIX_FMT_RGB565:

  251.         case PIX_FMT_GRAY16BE:

  252.         case PIX_FMT_GRAY16LE:

  253.             return 16;

  254.         case PIX_FMT_BGR555:

  255.         case PIX_FMT_RGB555:

  256.             return 15;

  257.         case PIX_FMT_BGR8:

  258.         case PIX_FMT_RGB8:

  259.             return 8;

  260.         case PIX_FMT_BGR4:

  261.         case PIX_FMT_RGB4:

  262.         case PIX_FMT_BGR4_BYTE:

  263.         case PIX_FMT_RGB4_BYTE:

  264.             return 4;

  265.         case PIX_FMT_MONOBLACK:

  266.             return 1;

  267.         default:

  268.             return 0;

  269.     }

  270. }

  271. 

  272. #endif