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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 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.  * 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

  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 FFmpeg; if not, write to the Free Software

  18.  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

  19.  *

  20.  * the C code (not assembly, mmx, ...) of the swscaler which has been written

  21.  * by Michael Niedermayer can be used under the LGPL license too

  22.  */

  23. 

  24. #ifndef SWSCALE_INTERNAL_H

  25. #define SWSCALE_INTERNAL_H

  26. 

  27. #ifdef HAVE_ALTIVEC_H

  28. #include <altivec.h>

  29. #endif

  30. 

  31. #include "avutil.h"

  32. 

  33. #ifdef CONFIG_DARWIN

  34. #define AVV(x...) (x)

  35. #else

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

  37. #endif

  38. 

  39. #define MSG_WARN(args...) av_log(NULL, AV_LOG_DEBUG, ##args )

  40. #define MSG_FATAL(args...) av_log(NULL, AV_LOG_ERROR, ##args )

  41. #define MSG_ERR(args...) av_log(NULL, AV_LOG_ERROR, ##args )

  42. #define MSG_V(args...) av_log(NULL, AV_LOG_INFO, ##args )

  43. #define MSG_DBG2(args...) av_log(NULL, AV_LOG_DEBUG, ##args )

  44. #define MSG_INFO(args...) av_log(NULL, AV_LOG_INFO, ##args )

  45. 

  46. #define MAX_FILTER_SIZE 256

  47. 

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

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

  50. 

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

  52. typedef struct SwsContext{

  53. 	/**

  54. 	 *

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

  56. 	 */

  57. 	SwsFunc swScale;

  58. 	int srcW, srcH, dstH;

  59. 	int chrSrcW, chrSrcH, chrDstW, chrDstH;

  60. 	int lumXInc, chrXInc;

  61. 	int lumYInc, chrYInc;

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

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

  64. 	int chrSrcHSubSample, chrSrcVSubSample;

  65. 	int chrIntHSubSample, chrIntVSubSample;

  66. 	int chrDstHSubSample, chrDstVSubSample;

  67. 	int vChrDrop;

  68.         int sliceDir;

  69. 	double param[2];

  70. 

  71. 	int16_t **lumPixBuf;

  72. 	int16_t **chrPixBuf;

  73. 	int16_t *hLumFilter;

  74. 	int16_t *hLumFilterPos;

  75. 	int16_t *hChrFilter;

  76. 	int16_t *hChrFilterPos;

  77. 	int16_t *vLumFilter;

  78. 	int16_t *vLumFilterPos;

  79. 	int16_t *vChrFilter;

  80. 	int16_t *vChrFilterPos;

  81. 

  82. 	uint8_t formatConvBuffer[4000]; //FIXME dynamic alloc, but we have to change alot of code for this to be usefull

  83. 

  84. 	int hLumFilterSize;

  85. 	int hChrFilterSize;

  86. 	int vLumFilterSize;

  87. 	int vChrFilterSize;

  88. 	int vLumBufSize;

  89. 	int vChrBufSize;

  90. 

  91. 	uint8_t *funnyYCode;

  92. 	uint8_t *funnyUVCode;

  93. 	int32_t *lumMmx2FilterPos;

  94. 	int32_t *chrMmx2FilterPos;

  95. 	int16_t *lumMmx2Filter;

  96. 	int16_t *chrMmx2Filter;

  97. 

  98. 	int canMMX2BeUsed;

  99. 

  100. 	int lastInLumBuf;

  101. 	int lastInChrBuf;

  102. 	int lumBufIndex;

  103. 	int chrBufIndex;

  104. 	int dstY;

  105. 	int flags;

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

  107. 	void * table_rV[256];

  108. 	void * table_gU[256];

  109. 	int    table_gV[256];

  110. 	void * table_bU[256];

  111. 

  112. 	//Colorspace stuff

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

  114. 	int srcColorspaceTable[4];

  115. 	int dstColorspaceTable[4];

  116. 	int srcRange, dstRange;

  117. 

  118. #define RED_DITHER   "0*8"

  119. #define GREEN_DITHER "1*8"

  120. #define BLUE_DITHER  "2*8"

  121. #define Y_COEFF      "3*8"

  122. #define VR_COEFF     "4*8"

  123. #define UB_COEFF     "5*8"

  124. #define VG_COEFF     "6*8"

  125. #define UG_COEFF     "7*8"

  126. #define Y_OFFSET     "8*8"

  127. #define U_OFFSET     "9*8"

  128. #define V_OFFSET     "10*8"

  129. #define LUM_MMX_FILTER_OFFSET "11*8"

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

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

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

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

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

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

  136. 

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

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

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

  140. 

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

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

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

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

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

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

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

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

  149. 	int32_t  lumMmxFilter[4*MAX_FILTER_SIZE];

  150. 	int32_t  chrMmxFilter[4*MAX_FILTER_SIZE];

  151. 	int dstW;

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

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

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

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

  156. 

  157. #ifdef HAVE_ALTIVEC

  158. 

  159.   vector signed short   CY;

  160.   vector signed short   CRV;

  161.   vector signed short   CBU;

  162.   vector signed short   CGU;

  163.   vector signed short   CGV;

  164.   vector signed short   OY;

  165.   vector unsigned short CSHIFT;

  166.   vector signed short *vYCoeffsBank, *vCCoeffsBank;

  167. 

  168. #endif

  169. 

  170. } SwsContext;

  171. //FIXME check init (where 0)

  172. 

  173. SwsFunc yuv2rgb_get_func_ptr (SwsContext *c);

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

  175. 

  176. char *sws_format_name(int format);

  177. 

  178. //FIXME replace this with something faster

  179. #define isPlanarYUV(x) ((x)==PIX_FMT_YUV410P || (x)==PIX_FMT_YUV420P	\

  180. 			|| (x)==PIX_FMT_YUV411P || (x)==PIX_FMT_YUV422P	\

  181. 			|| (x)==PIX_FMT_YUV444P || (x)==PIX_FMT_NV12	\

  182. 			|| (x)==PIX_FMT_NV21)

  183. #define isYUV(x)       ((x)==PIX_FMT_UYVY422 || (x)==PIX_FMT_YUYV422 || isPlanarYUV(x))

  184. #define isGray(x)      ((x)==PIX_FMT_GRAY8)

  185. #define isRGB(x)       ((x)==PIX_FMT_BGR32 || (x)==PIX_FMT_RGB24	\

  186. 			|| (x)==PIX_FMT_RGB565 || (x)==PIX_FMT_RGB555	\

  187. 			|| (x)==PIX_FMT_RGB8 || (x)==PIX_FMT_RGB4	\

  188. 			|| (x)==PIX_FMT_MONOBLACK)

  189. #define isBGR(x)       ((x)==PIX_FMT_RGB32 || (x)==PIX_FMT_BGR24	\

  190. 			|| (x)==PIX_FMT_BGR565 || (x)==PIX_FMT_BGR555	\

  191. 			|| (x)==PIX_FMT_BGR8 || (x)==PIX_FMT_BGR4	\

  192. 			|| (x)==PIX_FMT_MONOBLACK)

  193. 

  194. static inline int fmt_depth(int fmt)

  195. {

  196.     switch(fmt) {

  197.         case PIX_FMT_BGRA:

  198.         case PIX_FMT_ABGR:

  199.         case PIX_FMT_RGBA:

  200.         case PIX_FMT_ARGB:

  201.             return 32;

  202.         case PIX_FMT_BGR24:

  203.         case PIX_FMT_RGB24:

  204.             return 24;

  205.         case PIX_FMT_BGR565:

  206.         case PIX_FMT_RGB565:

  207.             return 16;

  208.         case PIX_FMT_BGR555:

  209.         case PIX_FMT_RGB555:

  210.             return 15;

  211.         case PIX_FMT_BGR8:

  212.         case PIX_FMT_RGB8:

  213.             return 8;

  214.         case PIX_FMT_BGR4:

  215.         case PIX_FMT_RGB4:

  216.         case PIX_FMT_BGR4_BYTE:

  217.         case PIX_FMT_RGB4_BYTE:

  218.             return 4;

  219.         case PIX_FMT_MONOBLACK:

  220.             return 1;

  221.         default:

  222.             return 0;

  223.     }

  224. }

  225. 

  226. #endif