swscale_internal.h

/*
    Copyright (C) 2001-2003 Michael Niedermayer <[email protected]>

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program 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 General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#ifndef SWSCALE_INTERNAL_H
#define SWSCALE_INTERNAL_H

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

#define MSG_WARN(args...) mp_msg(MSGT_SWS,MSGL_WARN, ##args )
#define MSG_FATAL(args...) mp_msg(MSGT_SWS,MSGL_FATAL, ##args )
#define MSG_ERR(args...) mp_msg(MSGT_SWS,MSGL_ERR, ##args )
#define MSG_V(args...) mp_msg(MSGT_SWS,MSGL_V, ##args )
#define MSG_DBG2(args...) mp_msg(MSGT_SWS,MSGL_DBG2, ##args )
#define MSG_INFO(args...) mp_msg(MSGT_SWS,MSGL_INFO, ##args )

#define MAX_FILTER_SIZE 256

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 32-byte boundary */
typedef struct SwsContext{
        SwsFunc swScale;
        int srcW, srcH, dstH;
        int chrSrcW, chrSrcH, chrDstW, chrDstH;
        int lumXInc, chrXInc;
        int lumYInc, chrYInc;
        int dstFormat, srcFormat;               
        int origDstFormat, origSrcFormat;       
        int chrSrcHSubSample, chrSrcVSubSample;
        int chrIntHSubSample, chrIntVSubSample;
        int chrDstHSubSample, chrDstVSubSample;
        int vChrDrop;

        int16_t **lumPixBuf;
        int16_t **chrPixBuf;
        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[4000]; //FIXME dynamic alloc, but we have to change alot of code for this to be usefull

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

        uint8_t __attribute__((aligned(32))) funnyYCode[10000];
        uint8_t __attribute__((aligned(32))) funnyUVCode[10000];
        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()
        void * table_rV[256];
        void * table_gU[256];
        int    table_gV[256];
        void * table_bU[256];

        //Colorspace stuff
        int contrast, brightness, saturation;   // for sws_getColorspaceDetails
        int srcColorspaceTable[4];
        int dstColorspaceTable[4];
        int srcRange, dstRange;

#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, its hardcoded in the asm
#define ESP_OFFSET  "11*8+4*4*256*2+4"
#define VROUNDER_OFFSET "11*8+4*4*256*2+8"
                  
        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;
        int esp;
        uint64_t vRounder     __attribute__((aligned(8)));

#ifdef 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;

#endif

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

SwsFunc yuv2rgb_get_func_ptr (SwsContext *c);
int yuv2rgb_c_init_tables (SwsContext *c, const int inv_table[4], int fullRange, int brightness, int contrast, int saturation);

#endif

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