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diff --git a/libswscale/swscale_internal.h b/libswscale/swscale_internal.h
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-/*
- * 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)
-
-#if HAVE_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, const 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; ///< Width of source luma/alpha planes.
- int srcH; ///< Height of source luma/alpha planes.
- int dstH; ///< Height of destination luma/alpha planes.
- int chrSrcW; ///< Width of source chroma planes.
- int chrSrcH; ///< Height of source chroma planes.
- int chrDstW; ///< Width of destination chroma planes.
- int chrDstH; ///< Height of destination chroma planes.
- int lumXInc, chrXInc;
- int lumYInc, chrYInc;
- enum PixelFormat dstFormat; ///< Destination pixel format.
- enum PixelFormat srcFormat; ///< Source pixel format.
- int dstFormatBpp; ///< Number of bits per pixel of the destination pixel format.
- int srcFormatBpp; ///< Number of bits per pixel of the source pixel format.
- int chrSrcHSubSample; ///< Binary logarithm of horizontal subsampling factor between luma/alpha and chroma planes in source image.
- int chrSrcVSubSample; ///< Binary logarithm of vertical subsampling factor between luma/alpha and chroma planes in source image.
- int chrDstHSubSample; ///< Binary logarithm of horizontal subsampling factor between luma/alpha and chroma planes in destination image.
- int chrDstVSubSample; ///< Binary logarithm of vertical subsampling factor between luma/alpha and chroma planes in destination image.
- int vChrDrop; ///< Binary logarithm of extra vertical subsampling factor in source image chroma planes specified by user.
- int sliceDir; ///< Direction that slices are fed to the scaler (1 = top-to-bottom, -1 = bottom-to-top).
- double param[2]; ///< Input parameters for scaling algorithms that need them.
-
- uint32_t pal_yuv[256];
- uint32_t pal_rgb[256];
-
- /**
- * @name Scaled horizontal lines ring buffer.
- * The horizontal scaler keeps just enough scaled lines in a ring buffer
- * so they may be passed to the vertical scaler. The pointers to the
- * allocated buffers for each line are duplicated in sequence in the ring
- * buffer to simplify indexing and avoid wrapping around between lines
- * inside the vertical scaler code. The wrapping is done before the
- * vertical scaler is called.
- */
- //@{
- int16_t **lumPixBuf; ///< Ring buffer for scaled horizontal luma plane lines to be fed to the vertical scaler.
- int16_t **chrPixBuf; ///< Ring buffer for scaled horizontal chroma plane lines to be fed to the vertical scaler.
- int16_t **alpPixBuf; ///< Ring buffer for scaled horizontal alpha plane lines to be fed to the vertical scaler.
- int vLumBufSize; ///< Number of vertical luma/alpha lines allocated in the ring buffer.
- int vChrBufSize; ///< Number of vertical chroma lines allocated in the ring buffer.
- int lastInLumBuf; ///< Last scaled horizontal luma/alpha line from source in the ring buffer.
- int lastInChrBuf; ///< Last scaled horizontal chroma line from source in the ring buffer.
- int lumBufIndex; ///< Index in ring buffer of the last scaled horizontal luma/alpha line from source.
- int chrBufIndex; ///< Index in ring buffer of the last scaled horizontal chroma line from source.
- //@}
-
- uint8_t formatConvBuffer[VOF]; //FIXME dynamic allocation, but we have to change a lot of code for this to be useful
-
- /**
- * @name Horizontal and vertical filters.
- * To better understand the following fields, here is a pseudo-code of
- * their usage in filtering a horizontal line:
- * @code
- * for (i = 0; i < width; i++) {
- * dst[i] = 0;
- * for (j = 0; j < filterSize; j++)
- * dst[i] += src[ filterPos[i] + j ] * filter[ filterSize * i + j ];
- * dst[i] >>= FRAC_BITS; // The actual implementation is fixed-point.
- * }
- * @endcode
- */
- //@{
- int16_t *hLumFilter; ///< Array of horizontal filter coefficients for luma/alpha planes.
- int16_t *hChrFilter; ///< Array of horizontal filter coefficients for chroma planes.
- int16_t *vLumFilter; ///< Array of vertical filter coefficients for luma/alpha planes.
- int16_t *vChrFilter; ///< Array of vertical filter coefficients for chroma planes.
- int16_t *hLumFilterPos; ///< Array of horizontal filter starting positions for each dst[i] for luma/alpha planes.
- int16_t *hChrFilterPos; ///< Array of horizontal filter starting positions for each dst[i] for chroma planes.
- int16_t *vLumFilterPos; ///< Array of vertical filter starting positions for each dst[i] for luma/alpha planes.
- int16_t *vChrFilterPos; ///< Array of vertical filter starting positions for each dst[i] for chroma planes.
- int hLumFilterSize; ///< Horizontal filter size for luma/alpha pixels.
- int hChrFilterSize; ///< Horizontal filter size for chroma pixels.
- int vLumFilterSize; ///< Vertical filter size for luma/alpha pixels.
- int vChrFilterSize; ///< Vertical filter size for chroma pixels.
- //@}
-
- int lumMmx2FilterCodeSize; ///< Runtime-generated MMX2 horizontal fast bilinear scaler code size for luma/alpha planes.
- int chrMmx2FilterCodeSize; ///< Runtime-generated MMX2 horizontal fast bilinear scaler code size for chroma planes.
- uint8_t *lumMmx2FilterCode; ///< Runtime-generated MMX2 horizontal fast bilinear scaler code for luma/alpha planes.
- uint8_t *chrMmx2FilterCode; ///< Runtime-generated MMX2 horizontal fast bilinear scaler code for chroma planes.
-
- int canMMX2BeUsed;
-
- int dstY; ///< Last destination vertical line output from last slice.
- int flags; ///< Flags passed by the user to select scaler algorithm, optimizations, subsampling, etc...
- 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; ///< 0 = MPG YUV range, 1 = JPG YUV range (source image).
- int dstRange; ///< 0 = MPG YUV range, 1 = JPG YUV range (destination image).
- 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"
-
- DECLARE_ALIGNED(8, uint64_t, redDither);
- DECLARE_ALIGNED(8, uint64_t, greenDither);
- DECLARE_ALIGNED(8, uint64_t, blueDither);
-
- DECLARE_ALIGNED(8, uint64_t, yCoeff);
- DECLARE_ALIGNED(8, uint64_t, vrCoeff);
- DECLARE_ALIGNED(8, uint64_t, ubCoeff);
- DECLARE_ALIGNED(8, uint64_t, vgCoeff);
- DECLARE_ALIGNED(8, uint64_t, ugCoeff);
- DECLARE_ALIGNED(8, uint64_t, yOffset);
- DECLARE_ALIGNED(8, uint64_t, uOffset);
- DECLARE_ALIGNED(8, uint64_t, vOffset);
- int32_t lumMmxFilter[4*MAX_FILTER_SIZE];
- int32_t chrMmxFilter[4*MAX_FILTER_SIZE];
- int dstW; ///< Width of destination luma/alpha planes.
- DECLARE_ALIGNED(8, uint64_t, esp);
- DECLARE_ALIGNED(8, uint64_t, vRounder);
- DECLARE_ALIGNED(8, uint64_t, u_temp);
- DECLARE_ALIGNED(8, uint64_t, v_temp);
- DECLARE_ALIGNED(8, uint64_t, y_temp);
- 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
- DECLARE_ALIGNED(4, uint32_t, oy);
- DECLARE_ALIGNED(4, uint32_t, oc);
- DECLARE_ALIGNED(4, uint32_t, zero);
- DECLARE_ALIGNED(4, uint32_t, cy);
- DECLARE_ALIGNED(4, uint32_t, crv);
- DECLARE_ALIGNED(4, uint32_t, rmask);
- DECLARE_ALIGNED(4, uint32_t, cbu);
- DECLARE_ALIGNED(4, uint32_t, bmask);
- DECLARE_ALIGNED(4, uint32_t, cgu);
- DECLARE_ALIGNED(4, uint32_t, cgv);
- DECLARE_ALIGNED(4, uint32_t, gmask);
-#endif
-
-#if HAVE_VIS
- DECLARE_ALIGNED(8, uint64_t, sparc_coeffs)[10];
-#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 (*lumToYV12)(uint8_t *dst, const uint8_t *src,
- long width, uint32_t *pal); ///< Unscaled conversion of luma plane to YV12 for horizontal scaler.
- void (*alpToYV12)(uint8_t *dst, const uint8_t *src,
- long width, uint32_t *pal); ///< Unscaled conversion of alpha plane to YV12 for horizontal scaler.
- void (*chrToYV12)(uint8_t *dstU, uint8_t *dstV,
- const uint8_t *src1, const uint8_t *src2,
- long width, uint32_t *pal); ///< Unscaled conversion of chroma planes to YV12 for horizontal scaler.
- void (*hyscale_fast)(struct SwsContext *c,
- int16_t *dst, long dstWidth,
- const uint8_t *src, int srcW, int xInc);
- void (*hcscale_fast)(struct SwsContext *c,
- int16_t *dst, long 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);
-
- void (*lumConvertRange)(uint16_t *dst, int width); ///< Color range conversion function for luma plane if needed.
- void (*chrConvertRange)(uint16_t *dst, int width); ///< Color range conversion function for chroma planes if needed.
-
- int lumSrcOffset; ///< Offset given to luma src pointers passed to horizontal input functions.
- int chrSrcOffset; ///< Offset given to chroma src pointers passed to horizontal input functions.
- int alpSrcOffset; ///< Offset given to alpha src pointers passed to horizontal input functions.
-
- int needs_hcscale; ///< Set if there are chroma planes to be converted.
-
-} 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(enum PixelFormat format);
-
-//FIXME replace this with something faster
-#define is16BPS(x) ( \
- (x)==PIX_FMT_GRAY16BE \
- || (x)==PIX_FMT_GRAY16LE \
- || (x)==PIX_FMT_RGB48BE \
- || (x)==PIX_FMT_RGB48LE \
- || (x)==PIX_FMT_YUV420P16LE \
- || (x)==PIX_FMT_YUV422P16LE \
- || (x)==PIX_FMT_YUV444P16LE \
- || (x)==PIX_FMT_YUV420P16BE \
- || (x)==PIX_FMT_YUV422P16BE \
- || (x)==PIX_FMT_YUV444P16BE \
- )
-#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_YUV420P16LE \
- || (x)==PIX_FMT_YUV422P16LE \
- || (x)==PIX_FMT_YUV444P16LE \
- || (x)==PIX_FMT_YUV420P16BE \
- || (x)==PIX_FMT_YUV422P16BE \
- || (x)==PIX_FMT_YUV444P16BE \
- )
-#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 isRGBinInt(x) ( \
- (x)==PIX_FMT_RGB48BE \
- || (x)==PIX_FMT_RGB48LE \
- || (x)==PIX_FMT_RGB32 \
- || (x)==PIX_FMT_RGB32_1 \
- || (x)==PIX_FMT_RGB24 \
- || (x)==PIX_FMT_RGB565BE \
- || (x)==PIX_FMT_RGB565LE \
- || (x)==PIX_FMT_RGB555BE \
- || (x)==PIX_FMT_RGB555LE \
- || (x)==PIX_FMT_RGB444BE \
- || (x)==PIX_FMT_RGB444LE \
- || (x)==PIX_FMT_RGB8 \
- || (x)==PIX_FMT_RGB4 \
- || (x)==PIX_FMT_RGB4_BYTE \
- || (x)==PIX_FMT_MONOBLACK \
- || (x)==PIX_FMT_MONOWHITE \
- )
-#define isBGRinInt(x) ( \
- (x)==PIX_FMT_BGR32 \
- || (x)==PIX_FMT_BGR32_1 \
- || (x)==PIX_FMT_BGR24 \
- || (x)==PIX_FMT_BGR565BE \
- || (x)==PIX_FMT_BGR565LE \
- || (x)==PIX_FMT_BGR555BE \
- || (x)==PIX_FMT_BGR555LE \
- || (x)==PIX_FMT_BGR444BE \
- || (x)==PIX_FMT_BGR444LE \
- || (x)==PIX_FMT_BGR8 \
- || (x)==PIX_FMT_BGR4 \
- || (x)==PIX_FMT_BGR4_BYTE \
- || (x)==PIX_FMT_MONOBLACK \
- || (x)==PIX_FMT_MONOWHITE \
- )
-#define isRGBinBytes(x) ( \
- (x)==PIX_FMT_RGB48BE \
- || (x)==PIX_FMT_RGB48LE \
- || (x)==PIX_FMT_RGBA \
- || (x)==PIX_FMT_ARGB \
- || (x)==PIX_FMT_RGB24 \
- )
-#define isBGRinBytes(x) ( \
- (x)==PIX_FMT_BGRA \
- || (x)==PIX_FMT_ABGR \
- || (x)==PIX_FMT_BGR24 \
- )
-#define isAnyRGB(x) ( \
- isRGBinInt(x) \
- || isBGRinInt(x) \
- )
-#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 \
- )
-#define usePal(x) (av_pix_fmt_descriptors[x].flags & PIX_FMT_PAL)
-
-extern const uint64_t ff_dither4[2];
-extern const uint64_t ff_dither8[2];
-
-extern const AVClass sws_context_class;
-
-/**
- * Sets c->swScale to an unscaled converter if one exists for the specific
- * source and destination formats, bit depths, flags, etc.
- */
-void ff_get_unscaled_swscale(SwsContext *c);
-
-/**
- * Returns the SWS_CPU_CAPS for the optimized code compiled into swscale.
- */
-int ff_hardcodedcpuflags(void);
-
-/**
- * Returns function pointer to fastest main scaler path function depending
- * on architecture and available optimizations.
- */
-SwsFunc ff_getSwsFunc(SwsContext *c);
-
-#endif /* SWSCALE_SWSCALE_INTERNAL_H */