/*
This file is part of "Filter Foundry", a filter plugin for Adobe Photoshop
Copyright (C) 2003-7 Toby Thain, toby@telegraphics.com.au
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
*/
//#include <stdio.h>
//#include <sound.h>
#include "ff.h"
#include "node.h"
#include "y.tab.h"
#include "scripting.h"
struct node *tree[4];
char *err[4];
int errpos[4],errstart[4],nplanes,cnvused,chunksize,toprow;
value_type slider[8],cell[0x100],map[4][0x100];
char *expr[4];
long maxSpace;
globals_t *gdata;
FilterRecordPtr gpb;
#ifdef MAC_ENV
#define hDllInstance NULL /* fake this Windows-only global */
#endif
extern struct sym_rec predefs[];
extern int nplanes,varused[];
int checkandinitparams(Handle params);
DLLEXPORT MACPASCAL
void ENTRYPOINT(short selector,FilterRecordPtr pb,long *data,short *result){
static Boolean wantdialog = false;
OSErr e = noErr;
char *reason;
EnterCodeResource();
gpb = pb;
if(!*data){
gdata
= (globals_t
*)( *data
= (long)malloc(sizeof(globals_t
)) ) ; gdata->standalone = gdata->parmloaded = false;
}else
gdata = (globals_t*)*data;
nplanes = MIN(pb->planes,4);
switch (selector){
case filterSelectorAbout:
if(!gdata->parmloaded)
gdata->standalone = gdata->parmloaded = readPARMresource(hDllInstance,&reason,1);
DoAbout((AboutRecordPtr)pb);
break;
case filterSelectorParameters:
wantdialog = true;
break;
case filterSelectorPrepare:
DoPrepare(pb);
init_symtab(predefs); // ready for parser calls
break;
case filterSelectorStart:
/* initialise the parameter handle that Photoshop keeps for us */
if(!pb->parameters)
pb->parameters = PINEWHANDLE(0);
wantdialog |= checkandinitparams(pb->parameters);
/* wantdialog = false means that we never got a Parameters call, so we're not supposed to ask user */
if( wantdialog && (!gdata->standalone || gdata->parm.popDialog) ){
if( maindialog(pb) ){
/* update stored parameters from new user settings */
saveparams(pb->parameters);
}else
e = userCanceledErr;
}
wantdialog = false;
if(!e){
if(setup(pb)){
DoStart(pb);
}else{
SYSBEEP(1);
e = filterBadParameters;
}
}
break;
case filterSelectorContinue:
e = DoContinue(pb);
break;
case filterSelectorFinish:
DoFinish(pb);
break;
default:
e = filterBadParameters;
}
*result = e;
ExitCodeResource();
}
int checkandinitparams(Handle params){
char *reasonstr,*reason;
int i,f,showdialog;
if( (f = !(params && readparams(params,false,&reasonstr))) ){
/* either the parameter handle was uninitialised,
or the parameter data couldn't be read; set default values */
// see if saved parameters exist
gdata->standalone = gdata->parmloaded = readPARMresource(hDllInstance,&reason,1);
if(!gdata->standalone){
// no saved settings (not standalone)
for(i = 0; i < 8; ++i)
slider[i] = i*10+100;
if(gpb->imageMode == plugInModeRGBColor){
expr[0] = my_strdup("r");
expr[1] = my_strdup("g");
expr[2] = my_strdup("b");
expr[3] = my_strdup("a");
}else{
expr[0] = my_strdup("c");
expr[1] = my_strdup("c");
expr[2] = my_strdup("c");
expr[3] = my_strdup("c");
}
}
}
// let scripting system change parameters, if we're scripted;
// user may want to force display of dialog during scripting playback
showdialog = ReadScriptParamsOnRead();
saveparams(params);
return f || showdialog;
}
void DoPrepare(FilterRecordPtr pb){
int i;
for(i = 4; i--;){
if(expr[i]||tree[i]) DBG("expr[] or tree[] non-NULL in Prepare!");
expr[i] = NULL;
tree[i] = NULL;
}
maxSpace = pb->maxSpace;
}
void RequestNext(FilterRecordPtr pb,long toprow){
/* Request next block of the image */
pb->inLoPlane = pb->outLoPlane = 0;
pb->inHiPlane = pb->outHiPlane = nplanes-1;
// if any of the formulae involve random access to image pixels,
// ask for the entire image
if(needall){
SETRECT(pb->inRect,0,0,pb->imageSize.h,pb->imageSize.v);
}else{
// otherwise, process the filtered area, by chunksize parts
pb->inRect.left = pb->filterRect.left;
pb->inRect.right = pb->filterRect.right;
pb->inRect.top = toprow;
pb->inRect.bottom = MIN(toprow + chunksize,pb->filterRect.bottom);
if(cnvused){
// cnv() needs one extra pixel in each direction
if(pb->inRect.left > 0)
--pb->inRect.left;
if(pb->inRect.right < pb->imageSize.h)
++pb->inRect.right;
if(pb->inRect.top > 0)
--pb->inRect.top;
if(pb->inRect.bottom < pb->imageSize.v)
++pb->inRect.bottom;
}
}
pb->outRect = pb->filterRect;
/*
{char s[0x100];sprintf(s,"RequestNext needall=%d inRect=(%d,%d,%d,%d) filterRect=(%d,%d,%d,%d)",
needall,
pb->inRect.left,pb->inRect.top,pb->inRect.right,pb->inRect.bottom,
pb->filterRect.left,pb->filterRect.top,pb->filterRect.right,pb->filterRect.bottom);dbg(s);}
*/
}
void DoStart(FilterRecordPtr pb){
//dbg("DoStart");
/* if src() or rad() functions are used, random access to the image data is required,
so we must request the entire image in a single chunk. */
chunksize = needall ? (pb->filterRect.bottom - pb->filterRect.top) : CHUNK_ROWS;
toprow = pb->filterRect.top;
RequestNext(pb,toprow);
}
OSErr DoContinue(FilterRecordPtr pb){
OSErr e = noErr;
Rect fr;
long outoffset;
if(needall)
fr = pb->filterRect; // filter whole selection at once
else if(cnvused){
// we've requested one pixel extra all around
// (see RequestNext()), just for access purposes. But filter
// original selection only.
fr.left = pb->filterRect.left;
fr.right = pb->filterRect.right;
fr.top = toprow;
fr.bottom = MIN(toprow + chunksize,pb->filterRect.bottom);
}else // filter whatever portion we've been given
fr = pb->inRect;
outoffset = (long)pb->outRowBytes*(fr.top - pb->outRect.top)
+ (long)nplanes*(fr.left - pb->outRect.left);
if(!(e = process_scaled(pb, true, &fr, &fr,
(Ptr)pb->outData+outoffset, pb->outRowBytes, 1.)))
{
toprow += chunksize;
if(toprow < pb->filterRect.bottom)
RequestNext(pb,toprow);
else{
SETRECT(pb->inRect,0,0,0,0);
pb->outRect = pb->maskRect = pb->inRect;
}
}
return e;
}
void DoFinish(FilterRecordPtr pb){
int i;
WriteScriptParamsOnRead();
for(i = 4; i--;){
freetree(tree[i]);
if(expr
[i
]) free(expr
[i
]); }
}