/* $XConsortium: pexLut.c,v 5.3 92/12/01 17:18:02 hersh Exp $ */

/***********************************************************
Copyright 1989, 1990, 1991 by Sun Microsystems, Inc. and the X Consortium.
 
                        All Rights Reserved

Permission to use, copy, modify, and distribute this software and its 
documentation for any purpose and without fee is hereby granted, 
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in 
supporting documentation, and that the names of Sun Microsystems,
the X Consortium, and MIT not be used in advertising or publicity 
pertaining to distribution of the software without specific, written 
prior permission.  

SUN MICROSYSTEMS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, 
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT 
SHALL SUN MICROSYSTEMS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL 
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
SOFTWARE.

******************************************************************/


/*++
 *	PEXCreateLookupTable
 *	PEXCopyLookupTable
 *	PEXFreeLookupTable
 *	PEXGetTableInfo
 *	PEXGetPredefinedEntries
 *	PEXGetDefinedIndices
 *	PEXGetTableEntry
 *	PEXGetTableEntries
 *	PEXSetTableEntries
 *	PEXDeleteTableEntries
 --*/

#include "X.h"
#include "Xproto.h"
#include "pexError.h"
#include "PEXproto.h"
#include "dipex.h"
#include "pex_site.h"
#include "pexLookup.h"

#define	VALID_TABLETYPE(type)	((type > 0) && (type <= PEXMaxTableType))


#ifdef min
#undef min
#endif
 
#ifdef max
#undef max
#endif



/*++	PEXCreateLookupTable
 --*/
ErrorCode
PEXCreateLookupTable (cntxtPtr, strmPtr)
pexContext		*cntxtPtr;	/* context pointer 	*/
pexCreateLookupTableReq	*strmPtr;	/* stream pointer 	*/
{
    ErrorCode freeLUT ();
    ErrorCode err = Success; 
    DrawablePtr pdraw = 0;
    diLUTHandle lutptr = 0;

    if (!VALID_TABLETYPE(strmPtr->tableType))
	PEX_ERR_EXIT(BadValue,strmPtr->tableType,cntxtPtr);

    if (!LegalNewID(strmPtr->lut, cntxtPtr->client))
	PEX_ERR_EXIT(BadIDChoice,strmPtr->lut,cntxtPtr);

    LU_DRAWABLE(strmPtr->drawableExample, pdraw);

    lutptr = (diLUTHandle) Xalloc ((unsigned long)sizeof(ddLUTResource));
    if (!lutptr) PEX_ERR_EXIT (BadAlloc,0,cntxtPtr);
    lutptr->id = strmPtr->lut;
    lutptr->lutType = strmPtr->tableType;
    
    err = CreateLUT( pdraw, lutptr);
    if (err) {
	Xfree((pointer)lutptr);
	PEX_ERR_EXIT(err,0,cntxtPtr);
    }

    ADDRESOURCE (strmPtr->lut, PEXLutType, lutptr);

    return( err );

} /* end-PEXCreateLookupTable() */

/*++	PEXCopyLookupTable
 --*/
ErrorCode
PEXCopyLookupTable (cntxtPtr, strmPtr)
pexContext		*cntxtPtr;	/* Context Pointer      */
pexCopyLookupTableReq	*strmPtr;	/* Stream Pointer 	*/
{
    diLUTHandle lsrc, ldest;
    ErrorCode err = Success;

    LU_TABLE(strmPtr->src, lsrc);
    LU_TABLE(strmPtr->dst, ldest);

    err = CopyLUT (lsrc, ldest);
    if (err) PEX_ERR_EXIT(err,0,cntxtPtr);

    return (err);

} /* end-PEXCopyLookupTable() */

/*++	PEXFreeLookupTable
 --*/
ErrorCode
PEXFreeLookupTable (cntxtPtr, strmPtr)
pexContext              *cntxtPtr;	/* Context Pointer 	*/
pexFreeLookupTableReq   *strmPtr;	/* Stream Pointer 	*/
{
    ErrorCode err = Success;
    diLUTHandle l = 0;

    if ((strmPtr == NULL) || (strmPtr->id == 0)) {
	err = PEX_ERROR_CODE(PEXLookupTableError);
	PEX_ERR_EXIT(err,0,cntxtPtr);
    }

    LU_TABLE(strmPtr->id, l);

    FreeResource(strmPtr->id, RT_NONE);

    return( err );

} /* end-PEXFreeLookupTable() */

/*++	PEXGetTableInfoReq
 --*/

ErrorCode
PEXGetTableInfo( cntxtPtr, strmPtr )
pexContext 	 	*cntxtPtr;
pexGetTableInfoReq	*strmPtr;
{
    ErrorCode err = Success;
    DrawablePtr pdraw;
    extern ddBufferPtr pPEXBuffer;
    pexGetTableInfoReply *reply = (pexGetTableInfoReply *)(pPEXBuffer->pHead);

    if (!VALID_TABLETYPE(strmPtr->tableType))
	PEX_ERR_EXIT(BadValue,strmPtr->tableType,cntxtPtr);

    LU_DRAWABLE(strmPtr->drawableExample, pdraw);

    SETUP_INQ(pexGetTableInfoReply);

    err = InquireLUTInfo(   pdraw, strmPtr->tableType,
			    (pexTableInfo *)&(reply->definableEntries));
    if (err) PEX_ERR_EXIT(err,0,cntxtPtr);

    reply->length = 0;
    WritePEXReplyToClient(  cntxtPtr, strmPtr,
			    sizeof(pexGetTableInfoReply) + reply->length,
			    reply);
    return( err );

} /* end-PEXGetTableInfo() */

/*++	PEXGetPredefinedEntries
 --*/

ErrorCode
PEXGetPredefinedEntries( cntxtPtr, strmPtr )
pexContext 			*cntxtPtr;
pexGetPredefinedEntriesReq 	*strmPtr;
{
    ErrorCode err = Success;
    extern ddBufferPtr pPEXBuffer;
    DrawablePtr pdraw = 0;
    ddULONG numEntries =  (ddULONG)(strmPtr->count);

    if (!VALID_TABLETYPE(strmPtr->tableType))
	PEX_ERR_EXIT(BadValue,strmPtr->tableType,cntxtPtr);

    LU_DRAWABLE(strmPtr->drawableExample, pdraw);

    SETUP_INQ(pexGetPredefinedEntriesReply);

    err = InquireLUTPredEntries(    pdraw, strmPtr->tableType,
				    strmPtr->start, strmPtr->count,
				    &numEntries, pPEXBuffer);
    if (err) PEX_ERR_EXIT(err,0,cntxtPtr);

    {
	SETUP_VAR_REPLY(pexGetPredefinedEntriesReply);
	reply->numEntries = numEntries;
	WritePEXBufferReply(pexGetPredefinedEntriesReply);
    }
    return( err );

} /* end-PEXGetPredefinedEntries() */

/*++	PEXGetDefinedIndices
 --*/

ErrorCode
PEXGetDefinedIndices( cntxtPtr, strmPtr)
pexContext   	 	*cntxtPtr;
pexGetDefinedIndicesReq	*strmPtr;
{
    ErrorCode err = Success;
    diLUTHandle pf;
    extern ddBufferPtr pPEXBuffer;
    ddULONG numIndices = 0;

    LU_TABLE(strmPtr->id, pf);

    SETUP_INQ(pexGetDefinedIndicesReply);

    err = InquireLUTIndices( pf, &numIndices, pPEXBuffer);
    if (err) PEX_ERR_EXIT(err,0,cntxtPtr);

    {
	SETUP_VAR_REPLY(pexGetDefinedIndicesReply);
	reply->numIndices = numIndices;
	WritePEXBufferReply(pexGetDefinedIndicesReply);
    }
    return( err );

} /* end-PEXGetDefinedIndices() */

/*++	PEXGetTableEntry
 --*/

ErrorCode
PEXGetTableEntry( cntxtPtr, strmPtr )
pexContext 		*cntxtPtr;
pexGetTableEntryReq	*strmPtr;
{
    ErrorCode err = Success;
    diLUTHandle pf;
    extern ddBufferPtr pPEXBuffer;
    ddUSHORT status;

    LU_TABLE(strmPtr->lut, pf);

    SETUP_INQ(pexGetTableEntryReply);

    err = InquireLUTEntry(  pf, strmPtr->index, strmPtr->valueType,
			    &status, pPEXBuffer);
    if (err) PEX_ERR_EXIT(err,0,cntxtPtr);

    /*
     * If this is a font table, we have to convert font handles to font ids.
     */

    if (pf->lutType == PEXTextFontLUT) {
	int i;
	pexTextFontEntry *ptfe = (pexTextFontEntry *)(pPEXBuffer->pBuf);
	pexFont *ptr = (pexFont *)(ptfe + 1);
	for (i=0; i<ptfe->numFonts; i++, ptr++)
	    *ptr = ((diFontHandle) *ptr)->id;
    }

    {
	SETUP_VAR_REPLY(pexGetTableEntryReply);
	reply->status = status;
	reply->tableType = pf->lutType;
	WritePEXBufferReply(pexGetTableEntryReply);
    }
    return( err );

} /* end-PEXGetTableEntry() */

/*++	PEXGetTableEntries
 --*/
ErrorCode
PEXGetTableEntries( cntxtPtr, strmPtr )
pexContext 	 	*cntxtPtr;
pexGetTableEntriesReq 	*strmPtr;
{
    ErrorCode err = Success;
    diLUTHandle pf;
    ddULONG numEntries;
    extern ddBuffer *pPEXBuffer;

    LU_TABLE(strmPtr->lut, pf);

    SETUP_INQ(pexGetTableEntriesReply);

    err = InquireLUTEntries(	pf, strmPtr->start, strmPtr->count,
				strmPtr->valueType, &numEntries, pPEXBuffer);
    if (err) PEX_ERR_EXIT(err,0,cntxtPtr);

    /*
     * If this is a font table, we have to convert font handles to font ids.
     */

    if (pf->lutType == PEXTextFontLUT) {
	int i, j;
	pexTextFontEntry *ptfe = (pexTextFontEntry *)(pPEXBuffer->pBuf);
 	for (i=0; i<strmPtr->count; i++) {
 	    pexFont *ptr = (pexFont *)(ptfe + 1);
 	    for (j=0; j<ptfe->numFonts; j++, ptr++)
 		*ptr = ((diFontHandle) *ptr)->id;
 	    ptfe = (pexTextFontEntry *) ptr;
  	}
    }

    {
	SETUP_VAR_REPLY(pexGetTableEntriesReply);
	reply->tableType = pf->lutType;
	reply->numEntries = numEntries;
	WritePEXBufferReply(pexGetTableEntriesReply);
    }
    return( err );

} /* end-PEXGetTableEntries() */

/*++	PEXSetTableEntries
 --*/

ErrorCode
PEXSetTableEntries( cntxtPtr, strmPtr )
pexContext 		*cntxtPtr;
pexSetTableEntriesReq 	*strmPtr;
{
    ErrorCode err = Success;
    diLUTHandle pf = 0;

    LU_TABLE(strmPtr->lut, pf);
    CHECK_FP_FORMAT(strmPtr->fpFormat);

    /*
	If this is a font table, lookup font id's and stuff pointers into
	the that longword, so ddpex gets its handles instead of ids.
     */
    if (pf->lutType == PEXTextFontLUT) {
	int i, j;
	diFontHandle fh;
	pexTextFontEntry *ptfe = (pexTextFontEntry *)(strmPtr + 1);
 	for (i=0; i<strmPtr->count; i++) {
 	    pexFont *ptr = (pexFont *)(ptfe + 1);
 	    for (j=0; j<ptfe->numFonts; j++, ptr++) {
 		LU_PEXFONT(*ptr, fh);
 		*ptr = (pexFont) fh;
 	    }
 	    ptfe = (pexTextFontEntry *) ptr;
  	}
    }

    err = SetLUTEntries(    pf, strmPtr->start, strmPtr->count,
			    (ddPointer)(strmPtr + 1));
    if (err) PEX_ERR_EXIT(err,0,cntxtPtr);
    return( err );

} /* end-PEXSetTableEntries() */

/*++	PEXDeleteTableEntries
 --*/

ErrorCode
PEXDeleteTableEntries( cntxtPtr, strmPtr )
pexContext			*cntxtPtr;
pexDeleteTableEntriesReq 	*strmPtr;
{
    ErrorCode err = Success;
    diLUTHandle pf;

    LU_TABLE(strmPtr->lut, pf);
    err = DeleteLUTEntries (pf, strmPtr->start, strmPtr->count);
    if (err) PEX_ERR_EXIT(err,0,cntxtPtr);
    return( err );

} /* end-PEXDeleteTableEntries() */
/*++
 *
 *	End of File
 *
 --*/