/* $XConsortium: ecphoto.c,v 1.5 94/04/17 20:33:28 rws Exp $ */
/**** module ecphoto.c ****/
/******************************************************************************

Copyright (c) 1993, 1994  X Consortium

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				NOTICE
                              
This software is being provided by AGE Logic, Inc. under the
following license.  By obtaining, using and/or copying this software,
you agree that you have read, understood, and will comply with these
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     Title to this software shall at all times remain with AGE
     Logic, Inc.
*****************************************************************************
  
	ecphoto.c -- DIXIE routines for managing the ExportClientPhoto element
  
	Dean Verheiden -- AGE Logic, Inc. June 1993
  
*****************************************************************************/

#define _XIEC_ECPHOTO

/*
 *  Include files
 */
#include <stdio.h>
  /*
   *  Core X Includes
   */
#include <X.h>
#include <Xproto.h>
  /*
   *  XIE Includes
   */
#include <XIE.h>
#include <XIEproto.h>
  /*
   *  more X server includes.
   */
#include <misc.h>
#include <dixstruct.h>
  /*
   *  Server XIE Includes
   */
#include <corex.h>
#include <error.h>
#include <macro.h>
#include <photomap.h>
#include <element.h>
#include <technq.h>


/*
 *  routines referenced by other modules
 */
peDefPtr	MakeECPhoto();
Bool		CopyECPhotoUnSingle();
Bool		CopyECPhotoG31D();
Bool		CopyECPhotoG32D();
Bool		CopyECPhotoG42D();
Bool		CopyECPhotoTIFF2();
Bool		CopyECPhotoTIFFPackBits();

Bool		PrepECPhotoUnSingle();
Bool		PrepECPhotoG31D();
Bool		PrepECPhotoG32D();
Bool		PrepECPhotoG42D();
Bool		PrepECPhotoTIFF2();
Bool		PrepECPhotoTIFFPackBits();

#if XIE_FULL
Bool		CopyECPhotoUnTriple();
Bool		CopyECPhotoJPEGBaseline();
Bool		PrepECPhotoUnTriple();
Bool		PrepECPhotoJPEGBaseline();
#ifdef BEYOND_SI
Bool		CopyECPhotoJPEGLossless();
Bool		PrepECPhotoJPEGLossless();
#endif /* BEYOND_SI */
#endif

/*
 *  routines internal to this module
 */
static Bool	PrepECPhoto();

extern Bool	BuildDecodeFromEncode();
extern Bool	CompareDecode();

/*
 * dixie element entry points
 */
static diElemVecRec eCPhotoVec = {
  PrepECPhoto			/* prepare for analysis and execution	*/
  };


/*------------------------------------------------------------------------
--------------- routine: make an import client photo element -------------
------------------------------------------------------------------------*/
peDefPtr MakeECPhoto(flo,tag,pe)
     floDefPtr      flo;
     xieTypPhototag tag;
     xieFlo        *pe;
{
  peDefPtr ped;
  ELEMENT(xieFloExportClientPhoto);
  ELEMENT_AT_LEAST_SIZE(xieFloExportClientPhoto);
  ELEMENT_NEEDS_1_INPUT(src);
  
  if(!(ped = MakePEDef(1, (CARD32)stuff->elemLength<<2, sizeof(ePhotoDefRec))))
    FloAllocError(flo,tag,xieElemExportClientPhoto, return(NULL)) ;

  ped->diVec	     = &eCPhotoVec;
  ped->phototag      = tag;
  ped->flags.getData = TRUE;
  ped->flags.export  = TRUE;
  raw = (xieFloExportClientPhoto *)ped->elemRaw;
  /*
   * copy the standard client element parameters (swap if necessary)
   */
  if( flo->reqClient->swapped ) {
    raw->elemType   = stuff->elemType;
    raw->elemLength = stuff->elemLength;
    cpswaps(stuff->src,  raw->src);
    raw->notify = stuff->notify;
    cpswaps(stuff->encodeTechnique, raw->encodeTechnique);
    cpswaps(stuff->lenParams, raw->lenParams);
  }
  else
    memcpy((char *)raw, (char *)stuff, sizeof(xieFloExportClientPhoto));

  /* copy technique data (if any)
   */
  if(!(ped->techVec = FindTechnique(xieValEncode,raw->encodeTechnique)) 
    || !(ped->techVec->copyfnc(flo, ped, &stuff[1], &raw[1], raw->lenParams)))
    TechniqueError(flo,ped,xieValHistogram,raw->encodeTechnique,raw->lenParams,
		   return(ped));

  /* assign phototag to inFlo
   */
  ped->inFloLst[SRCtag].srcTag = raw->src;

  return(ped);
}                               /* end MakeECPhoto */


Bool CopyECPhotoUnSingle(flo, ped, sparms, rparms, tsize) 
     floDefPtr  flo;
     peDefPtr   ped;
     xieTecEncodeUncompressedSingle *sparms, *rparms;
     CARD16	tsize;
{
  VALIDATE_TECHNIQUE_SIZE(ped->techVec, tsize, FALSE);
  
  /* Nothing to swap for this technique */
  memcpy((char *)rparms, (char *)sparms, tsize<<2);
  
  return(TRUE);
}

Bool CopyECPhotoG31D(flo, ped, sparms, rparms, tsize) 
     floDefPtr  flo;
     peDefPtr   ped;
     xieTecEncodeG31D *sparms, *rparms;
     CARD16	tsize;
{
  VALIDATE_TECHNIQUE_SIZE(ped->techVec, tsize, FALSE);
  
  /* Nothing to swap for this technique */
  memcpy((char *)rparms, (char *)sparms, tsize<<2);
  
  return(TRUE);
}

Bool CopyECPhotoG32D(flo, ped, sparms, rparms, tsize) 
     floDefPtr  flo;
     peDefPtr   ped;
     xieTecEncodeG32D *sparms, *rparms;
     CARD16	tsize;
{
  VALIDATE_TECHNIQUE_SIZE(ped->techVec, tsize, FALSE);
  
  if( flo->reqClient->swapped ) {
    rparms->radiometric  = sparms->radiometric;
    rparms->uncompressed = sparms->uncompressed;
    rparms->alignEol     = sparms->alignEol;
    rparms->encodedOrder = sparms->encodedOrder;
    cpswapl(sparms->kFactor, rparms->kFactor);
  } else
    memcpy((char *)rparms, (char *)sparms, tsize<<2);
  
  return(TRUE);
}

Bool CopyECPhotoG42D(flo, ped, sparms, rparms, tsize)
     floDefPtr  flo;
     peDefPtr   ped;
     xieTecEncodeG42D *sparms, *rparms;
     CARD16	tsize;
{
  VALIDATE_TECHNIQUE_SIZE(ped->techVec, tsize, FALSE);
  
  /* Nothing to swap for this technique */
  memcpy((char *)rparms, (char *)sparms, tsize<<2);
  
  return(TRUE);
}

Bool CopyECPhotoTIFF2(flo, ped, sparms, rparms, tsize)
     floDefPtr  flo;
     peDefPtr   ped;
     xieTecEncodeTIFF2 *sparms, *rparms;
     CARD16	tsize;
{
  VALIDATE_TECHNIQUE_SIZE(ped->techVec, tsize, FALSE);
  
  /* Nothing to swap for this technique */
  memcpy((char *)rparms, (char *)sparms, tsize<<2);
  
  return(TRUE);
}

Bool CopyECPhotoTIFFPackBits(flo, ped, sparms, rparms, tsize)
     floDefPtr  flo;
     peDefPtr   ped;
     xieTecEncodeTIFFPackBits *sparms, *rparms;
     CARD16	tsize;
{
  VALIDATE_TECHNIQUE_SIZE(ped->techVec, tsize, FALSE);
  
  /* Nothing to swap for this technique */
  memcpy((char *)rparms, (char *)sparms, tsize<<2);
  
  return(TRUE);
}

#if XIE_FULL
Bool CopyECPhotoUnTriple(flo, ped, sparms, rparms, tsize) 
     floDefPtr  flo;
     peDefPtr   ped;
     xieTecEncodeUncompressedTriple *sparms, *rparms;
     CARD16	tsize;
{
  VALIDATE_TECHNIQUE_SIZE(ped->techVec, tsize, FALSE);
  
  /* Nothing to swap for this technique */
  memcpy((char *)rparms, (char *)sparms, tsize<<2);
  
  return(TRUE);
}

Bool CopyECPhotoJPEGBaseline(flo, ped, sparms, rparms, tsize)
     floDefPtr  flo;
     peDefPtr   ped;
     xieTecEncodeJPEGBaseline *sparms, *rparms;
     CARD16	tsize;
{
  eTecEncodeJPEGBaselineDefPtr pvt;
  VALIDATE_TECHNIQUE_SIZE(ped->techVec, tsize, FALSE);
  
  memcpy((char *)rparms, (char *)sparms, tsize<<2);
  
  if( flo->reqClient->swapped ) {
    register int n;
    swaps(&rparms->lenQtable,n);
    swaps(&rparms->lenACtable,n);
    swaps(&rparms->lenDCtable,n);
  }
  if(rparms->lenQtable  & 3 ||
     rparms->lenACtable & 3 ||
     rparms->lenDCtable & 3) 
    return(FALSE);
  
  if(!(ped->techPvt=(pointer)XieMalloc(sizeof(eTecEncodeJPEGBaselineDefRec))))
    FloAllocError(flo, ped->phototag, xieElemExportClientPhoto, return(TRUE));
  
  pvt = (eTecEncodeJPEGBaselineDefPtr)ped->techPvt;
  pvt->q = (rparms->lenQtable
            ? (CARD8 *)rparms + sizeof(xieTecEncodeJPEGBaseline)
            : (CARD8 *) NULL);
  pvt->a = (rparms->lenACtable
            ? (CARD8 *)rparms + sizeof(xieTecEncodeJPEGBaseline)
	    + rparms->lenQtable
            : (CARD8 *) NULL);
  pvt->d = (rparms->lenDCtable
            ? (CARD8 *)rparms + sizeof(xieTecEncodeJPEGBaseline)
            + rparms->lenQtable + rparms->lenACtable
            : (CARD8 *) NULL);
  return(TRUE);
}

#ifdef BEYOND_SI
Bool CopyECPhotoJPEGLossless(flo, ped, sparms, rparms, tsize)
     floDefPtr  flo;
     peDefPtr   ped;
     xieTecEncodeJPEGLossless *sparms, *rparms;
     CARD16	tsize;
{
  VALIDATE_TECHNIQUE_SIZE(ped->techVec, tsize, FALSE);

  memcpy((char *)rparms, (char *)sparms, tsize<<2);

  if( flo->reqClient->swapped ) {
    register int n;
    swaps(&rparms->lenTable,n);
  }
  return(TRUE);
}
#endif /* BEYOND_SI */
#endif



/*------------------------------------------------------------------------
---------------- routine: prepare for analysis and execution -------------
------------------------------------------------------------------------*/
static Bool PrepECPhoto(flo,ped)
     floDefPtr  flo;
     peDefPtr   ped;
{
  xieFloExportClientPhoto *raw = (xieFloExportClientPhoto *)ped->elemRaw;
  ePhotoDefPtr             pvt = (ePhotoDefPtr)ped->elemPvt;
  inFloPtr                 inf = &ped->inFloLst[SRCtag];
  outFloPtr                src = &inf->srcDef->outFlo;
  outFloPtr                dst = &ped->outFlo;
  int b;
  
  /* Make sure notify value is valid
   */ 
  if(raw->notify != xieValDisable   &&
     raw->notify != xieValFirstData &&
     raw->notify != xieValNewData)
    ValueError(flo,ped,raw->notify, return(FALSE));
		
  pvt->congress = FALSE;
  dst->bands = inf->bands = src->bands;
  for(b = 0; b < src->bands; b++) {
    if (IsntConstrained(src->format[b].class))
      MatchError(flo, ped, return(FALSE));
    dst->format[b] = inf->format[b] = src->format[b];
  }
  if(!(ped->techVec->prepfnc(flo, ped, &raw[1])))
    TechniqueError(flo,ped,xieValHistogram,raw->encodeTechnique,raw->lenParams,
                   return(FALSE));

  pvt->encodeNumber = raw->encodeTechnique;
  pvt->encodeLen    = raw->lenParams << 2;
  pvt->encodeParms  = (pointer)&raw[1];

  if(ped->inFloLst[IMPORT].srcDef->flags.import) {
    /*
     * see if import data can leap-frog the import and export elements
     */
    if(BuildDecodeFromEncode(flo,ped) && CompareDecode(flo,ped)) {
      inFloPtr import = &inf->srcDef->inFloLst[IMPORT];

      inf->bands = import->bands;
      for(b = 0; b < import->bands; ++b)
	inf->format[b] = import->format[b];
      pvt->congress = TRUE;
    }
    if(pvt->decodeParms)
       pvt->decodeParms = (pointer)XieFree(pvt->decodeParms);
  }
  return(TRUE);
}                               /* end PrepECPhoto */


/*------------------------------------------------------------------------
----- routines: verify technique parameters against element parameters ----
-------------- and prepare for analysis and execution                 ----
------------------------------------------------------------------------*/

/* Prep routine for uncompressed single band data */
Bool PrepECPhotoUnSingle(flo, ped, tec) 
     floDefPtr flo;
     peDefPtr  ped;
     xieTecEncodeUncompressedSingle *tec;
{
  outFloPtr dst = &ped->outFlo;
  CARD32 padmod =  tec->scanlinePad * 8;
  CARD32 pitch  =  tec->pixelStride * dst->format[0].width;
  BOOL  aligned = !(tec->pixelStride & (tec->pixelStride-1)) ||
    tec->pixelStride == 24;
  
  if(tec->fillOrder  != xieValLSFirst &&	    /* check fill-order     */
     tec->fillOrder  != xieValMSFirst)
    return(FALSE);
  if(tec->pixelOrder != xieValLSFirst &&	    /* check pixel-order    */
     tec->pixelOrder != xieValMSFirst)
    return(FALSE);
  if(tec->pixelStride < dst->format[0].depth)       /* check pixel-stride   */
    return(FALSE);
  if(ALIGNMENT == xieValAlignable &&		    /* scanline alignment   */
     !tec->scanlinePad && !aligned)
    return(FALSE);
  if(tec->scanlinePad & (tec->scanlinePad-1) ||     /* check scanline-pad   */
     tec->scanlinePad > 16)
    return(FALSE);
  
  dst->format[0].interleaved = FALSE;
  dst->format[0].class       = STREAM;
  dst->format[0].stride      = tec->pixelStride;
  dst->format[0].pitch       = pitch + (padmod ? Align(pitch,padmod) : 0);
  
  return(TRUE);
} /* PrepECPhotoUnSingle */

Bool PrepECPhotoG31D(flo, ped, tec) 
     floDefPtr flo;
     peDefPtr  ped;
     xieTecEncodeG31D *tec;
{
  outFloPtr dst = &ped->outFlo;
  
  if(tec->encodedOrder  != xieValLSFirst &&	    /* check encoding-order  */
     tec->encodedOrder  != xieValMSFirst)
    return(FALSE);
  
  dst->format[0].interleaved = FALSE;
  dst->format[0].class  = STREAM;
  
  return(TRUE);
  
} /* PrepECPhotoG31D */

Bool PrepECPhotoG32D(flo, ped, tec) 
     floDefPtr flo;
     peDefPtr  ped;
     xieTecEncodeG32D *tec;
{
  outFloPtr dst = &ped->outFlo;
  
  if(tec->encodedOrder  != xieValLSFirst &&	    /* check encoding-order  */
     tec->encodedOrder  != xieValMSFirst)
    return(FALSE);
  
  dst->format[0].interleaved = FALSE;
  dst->format[0].class  = STREAM;
  
  return(TRUE);
  
} /* PrepECPhotoG32D */

Bool PrepECPhotoG42D(flo, ped, tec) 
     floDefPtr flo;
     peDefPtr  ped;
     xieTecEncodeG42D *tec;
{
  outFloPtr dst = &ped->outFlo;
  
  if(tec->encodedOrder  != xieValLSFirst &&	    /* check encoding-order  */
     tec->encodedOrder  != xieValMSFirst)
    return(FALSE);
  
  dst->format[0].interleaved = FALSE;
  dst->format[0].class  = STREAM;
  
  return(TRUE);
  
} /* PrepECPhotoG42D */

Bool PrepECPhotoTIFF2(flo, ped, tec) 
     floDefPtr flo;
     peDefPtr  ped;
     xieTecEncodeTIFF2 *tec;
{
  outFloPtr dst = &ped->outFlo;
  
  if(tec->encodedOrder  != xieValLSFirst &&	    /* check encoding-order  */
     tec->encodedOrder  != xieValMSFirst)
    return(FALSE);
  
  dst->format[0].interleaved = FALSE;
  dst->format[0].class  = STREAM;
  
  return(TRUE);
  
} /* PrepECPhotoTIFF2 */

Bool PrepECPhotoTIFFPackBits(flo, ped, tec) 
     floDefPtr flo;
     peDefPtr  ped;
     xieTecEncodeTIFFPackBits *tec;
{
  outFloPtr dst = &ped->outFlo;
  
  if(tec->encodedOrder  != xieValLSFirst &&	    /* check encoding-order  */
     tec->encodedOrder  != xieValMSFirst)
    return(FALSE);
  
  dst->format[0].interleaved = FALSE;
  dst->format[0].class  = STREAM;
  
  return(TRUE);
} /* PrepECPhotoTIFFPackBits */
  
#if XIE_FULL
/* Prep routine for uncompressed triple band data */
Bool PrepECPhotoUnTriple(flo, ped, tec) 
     floDefPtr flo;
     peDefPtr  ped;
     xieTecEncodeUncompressedTriple *tec;
{
  outFloPtr dst = &ped->outFlo;
  int b;
  
  if(tec->fillOrder  != xieValLSFirst &&	    /* check fill-order     */
     tec->fillOrder  != xieValMSFirst)
    return(FALSE);
  if(tec->pixelOrder != xieValLSFirst &&	    /* check pixel-order    */
     tec->pixelOrder != xieValMSFirst)
    return(FALSE);
  if(tec->bandOrder  != xieValLSFirst &&	    /* check band-order     */
     tec->bandOrder  != xieValMSFirst)
    return(FALSE);
  if(tec->interleave != xieValBandByPixel &&	    /* check interleave     */
     tec->interleave != xieValBandByPlane)
    return(FALSE);
  if (tec->interleave == xieValBandByPixel && 	    /* check inter-band dim */
      (dst->format[0].width  != dst->format[1].width   ||
       dst->format[1].width  != dst->format[2].width   ||
       dst->format[0].height != dst->format[1].height  ||
       dst->format[1].height != dst->format[2].height))
    return(FALSE);
  if (tec->interleave == xieValBandByPixel) {
     CARD32  padmod =   tec->scanlinePad[0] * 8;
     CARD32   pitch =   tec->pixelStride[0] * dst->format[0].width;

     if (tec->pixelStride[0] <
         dst->format[0].depth + dst->format[1].depth + dst->format[2].depth ||
	 dst->format[0].depth > 16 ||
	 dst->format[1].depth > 16 ||
	 dst->format[2].depth > 16)
        return(FALSE);
      if(tec->scanlinePad[0] & (tec->scanlinePad[0]-1) || /*check scanln-pad*/
         tec->scanlinePad[0] > 16)
           return(FALSE);

      dst->bands = 1;
      dst->format[0].interleaved = TRUE;
      dst->format[0].class  = STREAM;
      dst->format[0].stride = tec->pixelStride[0];
      dst->format[0].pitch  = pitch + (padmod ? Align(pitch,padmod) : 0);
  } else {
      if(tec->pixelStride[0] < dst->format[0].depth || /* check pixel-stride */
         tec->pixelStride[1] < dst->format[1].depth || 
         tec->pixelStride[2] < dst->format[2].depth)
       return(FALSE);
      for (b = 0; b < 3; b++) {
        CARD32  padmod =   tec->scanlinePad[b] * 8;
        CARD32   pitch =   tec->pixelStride[b] * dst->format[b].width;
    
        if(dst->format[b].depth > 16)  /* check pixel-depth   */
          return(FALSE);
        if(tec->scanlinePad[b] & (tec->scanlinePad[b]-1) || /*check scanln-pad*/
           tec->scanlinePad[b] > 16)
           return(FALSE);
    
        dst->format[b].interleaved = FALSE;
        dst->format[b].class  = STREAM;
        dst->format[b].stride = tec->pixelStride[b];
        dst->format[b].pitch  = pitch + (padmod ? Align(pitch,padmod) : 0);
      }
  }
  
  return(TRUE);
} /* PrepECPhotoUnTriple */

Bool PrepECPhotoJPEGBaseline(flo, ped, tec) 
     floDefPtr flo;
     peDefPtr  ped;
     xieTecEncodeJPEGBaseline *tec;
{
  outFloPtr dst = &ped->outFlo;
  
  if (dst->bands == 1) 
    dst->format[0].interleaved = FALSE;
  else {
    if(tec->bandOrder  != xieValLSFirst &&	   /* check encoding-order  */
       tec->bandOrder  != xieValMSFirst)
      return(FALSE);
    
    if(tec->interleave != xieValBandByPixel && /* check interleave     */
       tec->interleave != xieValBandByPlane)
      return(FALSE);
    
    dst->format[0].interleaved =
      dst->format[1].interleaved =
	dst->format[2].interleaved =
	  (tec->interleave == xieValBandByPixel);

    if (tec->interleave == xieValBandByPixel)
      dst->bands = 1;
    else {
      dst->format[1].class  = STREAM;
      dst->format[2].class  = STREAM;
    }
  }
  
  dst->format[0].class  = STREAM;
  
  return(TRUE);
  
} /* PrepECPhotoJPEGBaseline */

#ifdef BEYOND_SI
Bool PrepECPhotoJPEGLossless(flo, ped, tec) 
     floDefPtr flo;
     peDefPtr  ped;
     xieTecEncodeJPEGLossless *tec;
{
  outFloPtr dst = &ped->outFlo;
  CARD8 pred;
  
  if ((pred = tec->predictor[0]) != xieValPredictorNone &&
      pred != xieValPredictorA    &&
      pred != xieValPredictorB    &&
      pred != xieValPredictorC    &&
      pred != xieValPredictorABC  &&
      pred != xieValPredictorABC2 &&
      pred != xieValPredictorBAC2 &&
      pred != xieValPredictorAB2)
    return(FALSE);
  
  if (dst->bands == 1) 
    dst->format[0].interleaved = FALSE;
  else {
    if(tec->bandOrder  != xieValLSFirst &&	    /* check encoding-order  */
       tec->bandOrder  != xieValMSFirst)
      return(FALSE);
    
    if(tec->interleave != xieValBandByPixel && /* check interleave     */
       tec->interleave != xieValBandByPlane)
      return(FALSE);
    
    if ((pred = tec->predictor[1]) != xieValPredictorNone &&
	pred != xieValPredictorA    &&
	pred != xieValPredictorB    &&
	pred != xieValPredictorC    &&
	pred != xieValPredictorABC  &&
	pred != xieValPredictorABC2 &&
	pred != xieValPredictorBAC2 &&
	pred != xieValPredictorAB2)
      return(FALSE);
    
    if ((pred = tec->predictor[2]) != xieValPredictorNone &&
	pred != xieValPredictorA    &&
	pred != xieValPredictorB    &&
	pred != xieValPredictorC    &&
	pred != xieValPredictorABC  &&
	pred != xieValPredictorABC2 &&
	pred != xieValPredictorBAC2 &&
	pred != xieValPredictorAB2)
      return(FALSE);
    
    dst->format[0].interleaved = 
      dst->format[1].interleaved  =
	dst->format[2].interleaved  =
	  (tec->interleave == xieValBandByPixel);

    if (tec->interleave == xieValBandByPixel)
      dst->bands = 1;
    else {
      dst->format[1].class  = STREAM;
      dst->format[2].class  = STREAM;
    }
  }
  
  dst->format[0].class  = STREAM;
  
  return(TRUE);
  
} /* PrepECPhotoJPEGLossless */
#endif /* BEYOND_SI */
#endif

/* end module ecphoto.c */