/* $XConsortium: pctoi.c,v 1.6 94/05/10 13:28:24 dpw Exp $ */ /**** module pctoi.c ****/ /****************************************************************************** Copyright (c) 1993, 1994 X Consortium Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Except as contained in this notice, the name of the X Consortium shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization from the X Consortium. 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 terms and conditions: Permission to use, copy, modify, distribute and sell this software and its documentation for any purpose and without fee or royalty and to grant others any or all rights granted herein is hereby granted, provided that you agree to comply with the following copyright notice and statements, including the disclaimer, and that the same appears on all copies and derivative works of the software and documentation you make. "Copyright 1993, 1994 by AGE Logic, Inc." THIS SOFTWARE IS PROVIDED "AS IS". AGE LOGIC MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED. By way of example, but not limitation, AGE LOGIC MAKE NO REPRESENTATIONS OR WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR THAT THE SOFTWARE DOES NOT INFRINGE THIRD-PARTY PROPRIETARY RIGHTS. AGE LOGIC SHALL BEAR NO LIABILITY FOR ANY USE OF THIS SOFTWARE. IN NO EVENT SHALL EITHER PARTY BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOSS OF PROFITS, REVENUE, DATA OR USE, INCURRED BY EITHER PARTY OR ANY THIRD PARTY, WHETHER IN AN ACTION IN CONTRACT OR TORT OR BASED ON A WARRANTY, EVEN IF AGE LOGIC LICENSEES HEREUNDER HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. The name of AGE Logic, Inc. may not be used in advertising or publicity pertaining to this software without specific, written prior permission from AGE Logic. Title to this software shall at all times remain with AGE Logic, Inc. ***************************************************************************** pctoi.c -- DIXIE routines for managing the ConvertToIndex element Dean Verheiden && Robert NC Shelley -- AGE Logic, Inc. June 1993 *****************************************************************************/ #define _XIEC_PCTOI #define _XIEC_PCI /* * Include files */ #include /* * Core X Includes */ #include #include /* * XIE Includes */ #include #include /* * more X server includes. */ #include #include #include #include /* * Server XIE Includes */ #include #include #include #include #include #include #include /* routines referenced by other modules. */ peDefPtr MakeConvertToIndex(); Bool CopyCtoIAllocAll(); Bool PrepCtoIAllocAll(); #ifdef BEYOND_SI Bool CopyCtoIAllocMatch(); Bool CopyCtoIAllocRequantize(); #endif /* BEYOND_SI */ /* routines internal to this module */ static Bool PrepConvertToIndex(); static Bool DebriefConvertToIndex(); /* dixie entry points */ static diElemVecRec pCtoIVec = { PrepConvertToIndex, DebriefConvertToIndex }; /*------------------------------------------------------------------------ ----------------- routine: make an ExportPhotomap element ---------------- ------------------------------------------------------------------------*/ peDefPtr MakeConvertToIndex(flo,tag,pe) floDefPtr flo; xieTypPhototag tag; xieFlo *pe; { peDefPtr ped; inFloPtr inFlo; ELEMENT(xieFloConvertToIndex); ELEMENT_AT_LEAST_SIZE(xieFloConvertToIndex); ELEMENT_NEEDS_1_INPUT(src); if(!(ped = MakePEDef(1,(CARD32)stuff->elemLength<<2,sizeof(pCtoIDefRec)))) FloAllocError(flo,tag,xieElemConvertToIndex, return(NULL)); ped->diVec = &pCtoIVec; ped->phototag = tag; ped->flags.process = TRUE; raw = (xieFloConvertToIndex *)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; cpswapl(stuff->colormap, raw->colormap); cpswapl(stuff->colorList, raw->colorList); cpswaps(stuff->colorAlloc, raw->colorAlloc); cpswaps(stuff->lenParams, raw->lenParams); } else memcpy((char *)raw, (char *)stuff, sizeof(xieFloConvertToIndex)); /* * assign phototags to inFlos */ inFlo = ped->inFloLst; inFlo[SRCtag].srcTag = raw->src; /* * copy technique data (if any) */ if(!(ped->techVec = FindTechnique(xieValColorAlloc,raw->colorAlloc)) || !(ped->techVec->copyfnc(flo, ped, &stuff[1], &raw[1], raw->lenParams, raw->colorAlloc == xieValDefault))) TechniqueError(flo,ped,xieValColorAlloc,raw->colorAlloc,raw->lenParams, return(ped)); return(ped); } /* end MakeConvertToIndex */ /*------------------------------------------------------------------------ ----------------------- copy routines for techniques ------------------- ------------------------------------------------------------------------*/ Bool CopyCtoIAllocAll(flo, ped, sparms, rparms, tsize, isDefault) floDefPtr flo; peDefPtr ped; xieTecColorAllocAll *sparms, *rparms; CARD16 tsize; Bool isDefault; { pTecCtoIDefPtr pvt; VALIDATE_TECHNIQUE_SIZE(ped->techVec, tsize, isDefault); if(!(ped->techPvt=(pointer)XieMalloc(sizeof(pTecCtoIDefRec)))) FloAllocError(flo,ped->phototag,xieElemConvertToIndex, return(TRUE)); pvt = (pTecCtoIDefPtr)ped->techPvt; if (isDefault) pvt->fill = 0; /* Not really a good way to pick this so . . . */ else if( flo->reqClient->swapped ) { cpswapl(sparms->fill, pvt->fill); } else pvt->fill = sparms->fill; return(TRUE); } #ifdef BEYOND_SI Bool CopyCtoIAllocMatch(flo, ped, sparms, rparms, tsize, isDefault) floDefPtr flo; peDefPtr ped; xieTecColorAllocMatch *sparms, *rparms; CARD16 tsize; Bool isDefault; { pConvertToIndexMatchDefPtr pvt; VALIDATE_TECHNIQUE_SIZE(ped->techVec, tsize, isDefault); if (!(ped->techPvt=(pointer )XieMalloc(sizeof(pTecConvertToIndexMatchDefRec)))) AllocError(flo,ped, return(TRUE)); pvt = (pConvertToIndexMatchDefPtr)ped->techPvt; if( flo->reqClient->swapped ) { pvt->matchLimit = ConvertFromIEEE(lswapl(sparms->matchLimit)); pvt->grayLimit = ConvertFromIEEE(lswapl(sparms->grayLimit)); } else { pvt->matchLimit = ConvertFromIEEE(sparms->matchLimit); pvt->grayLimit = ConvertFromIEEE(sparms->grayLimit); } return(TRUE); } Bool CopyCtoIAllocRequantize(flo, ped, sparms, rparms, tsize, isDefault) floDefPtr flo; peDefPtr ped; xieTecColorAllocRequantize *sparms, *rparms; CARD16 tsize; Bool isDefault; { VALIDATE_TECHNIQUE_SIZE(ped->techVec, tsize, isDefault); if( flo->reqClient->swapped ){ cpswapl(sparms->maxCells, rparms->maxCells); } else rparms->maxCells = sparms->maxCells; return(TRUE); } #endif /* BEYOND_SI */ /*------------------------------------------------------------------------ ---------------- routine: prepare for analysis and execution ------------- ------------------------------------------------------------------------*/ static Bool PrepConvertToIndex(flo,ped) floDefPtr flo; peDefPtr ped; { xieFloConvertToIndex *raw = (xieFloConvertToIndex *)ped->elemRaw; pCtoIDefPtr pvt = (pCtoIDefPtr) ped->elemPvt; inFloPtr inf = &ped->inFloLst[SRCt1]; outFloPtr src = &inf->srcDef->outFlo; outFloPtr dst = &ped->outFlo; formatPtr sf = &src->format[0]; formatPtr df = &dst->format[0]; CARD32 b; /* must be constrained and inter-band dimensions must match */ if(IsntConstrained(sf[0].class) || src->bands == 3 && (IsntConstrained(sf[1].class) || IsntConstrained(sf[2].class) || sf[0].width != sf[1].width || sf[1].width != sf[2].width || sf[0].height != sf[1].height || sf[1].height != sf[2].height)) MatchError(flo,ped, return(FALSE)); /* determine our output attributes from the input (figure out levels later) */ df[0] = sf[0]; dst->bands = 1; inf->bands = src->bands; for(b = 0; b < src->bands; ++b) inf->format[b] = sf[b]; /* find the ColorList and Colormap resources */ if(raw->colorList) { if(!(pvt->list = LookupColorList(raw->colorList))) ColorListError(flo,ped,raw->colorList, return(FALSE)); if(pvt->list->refCnt != 1) AccessError(flo,ped, return(FALSE)); ++pvt->list->refCnt; } else { pvt->list = NULL; } if(!(pvt->cmap = (ColormapPtr) LookupIDByType(raw->colormap, RT_COLORMAP))) ColormapError(flo,ped,raw->colormap, return(FALSE)); /* grab attributes from colormap, visual, ... */ pvt->class = pvt->cmap->class; pvt->visual = pvt->cmap->pVisual; pvt->stride = pvt->visual->bitsPerRGBValue; pvt->cells = pvt->visual->ColormapEntries; pvt->mask[0] = pvt->visual->redMask; pvt->mask[1] = pvt->visual->greenMask; pvt->mask[2] = pvt->visual->blueMask; pvt->shft[0] = pvt->visual->offsetRed; pvt->shft[1] = pvt->visual->offsetGreen; pvt->shft[2] = pvt->visual->offsetBlue; pvt->dynamic = pvt->cmap->class & DynamicClass; pvt->graySrc = src->bands == 1; pvt->preFmt = pvt->doHist = FALSE; switch(pvt->class) { case DirectColor : case TrueColor : case StaticColor : for(b = 0; b < 3; ++b) pvt->levels[b] = pvt->mask[b] >> pvt->shft[b]; /* see if we have a full set of masks (by turning them into levels) */ if(pvt->levels[0]++ & pvt->levels[1]++ & pvt->levels[2]++) { /* see what limitations we have for grayscale images */ if(pvt->graySrc && !pvt->dynamic && (pvt->levels[0] != pvt->levels[1] || pvt->levels[1] != pvt->levels[2])) MatchError(flo,ped, return(FALSE)); /* set output levels and depth based on colormap masks */ df[0].levels = pvt->levels[0] * pvt->levels[1] * pvt->levels[2]; SetDepthFromLevels(df[0].levels, pvt->depth); break; } /* for StaticColor with no asks, we'll fall thru */ case PseudoColor : pvt->levels[1] = pvt->levels[2] = 1; case GrayScale : case StaticGray : /* set output levels and depth based on colormap size */ SetDepthFromLevels(pvt->cells, pvt->depth); df[0].levels = 1<depth; if((pvt->preFmt = !pvt->graySrc) && pvt->class <= GrayScale) MatchError(flo,ped, return(FALSE)); } /* set output stride and pitch to match the colormap depth */ if(!UpdateFormatfromLevels(ped)) MatchError(flo,ped, return(FALSE)); /* go do technique-specific stuff */ if(!(ped->techVec->prepfnc(flo, ped, raw, &raw[1]))) TechniqueError(flo,ped,xieValColorAlloc,raw->colorAlloc,raw->lenParams, return(FALSE)); /* init the colorlist resource */ if(pvt->list) { ResetColorList(pvt->list, pvt->list->mapPtr); pvt->list->mapID = raw->colormap; pvt->list->mapPtr = pvt->cmap; pvt->list->client = flo->runClient; } return(TRUE); } /* end PrepConvertToIndex */ /*------------------------------------------------------------------------ ------------------------ technique prep routines ------------------------ ------------------------------------------------------------------------*/ Bool PrepCtoIAllocAll(flo, ped, raw, tec) floDefPtr flo; peDefPtr ped; xieFloConvertToIndex *raw; xieTecColorAllocAll *tec; { pCtoIDefPtr pvt = (pCtoIDefPtr) ped->elemPvt; inFloPtr inf = &ped->inFloLst[SRCtag]; formatPtr fmt = &inf->format[0]; if(!(pvt->class & DynamicClass) || !pvt->list) return(FALSE); /* AllocAll needs a dynamic colormap and a colorlist */ /* Check the depth of each band to make sure they're reasonable ... deep * images have to have sparse histograms to avoid running out of colors * * XIE only supports up to 16 bits per band for "non-index" data, * we will further limit RGB images to a total depth of 31. */ if(inf->bands == 1 && fmt[0].depth > 16 || inf->bands == 3 && (fmt[0].depth + fmt[1].depth + fmt[2].depth > 31)) return(FALSE); return(TRUE); } /* end PrepCtoIAllocAll */ /*------------------------------------------------------------------------ ---------------------- routine: post execution cleanup ------------------- ------------------------------------------------------------------------*/ static Bool DebriefConvertToIndex(flo,ped,ok) floDefPtr flo; peDefPtr ped; Bool ok; { pCtoIDefPtr pvt = (pCtoIDefPtr) ped->elemPvt; colorListPtr lst; if(pvt && (lst = pvt->list)) if(lst->refCnt > 1) { if(!ok || !lst->cellCnt) ResetColorList(lst, lst->mapPtr); --lst->refCnt; } else if(LookupIDByType(lst->ID, RT_COLORLIST)) { FreeResourceByType(lst->ID, RT_COLORLIST, RT_NONE); } else { DeleteColorList(lst, lst->ID); } return(TRUE); } /* end DebriefConvertToIndex */ /* end module pctoi.c */