Subversion Repositories filter_foundry

Rev

Rev 259 | Rev 268 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
259 daniel-mar 1
/*
2
        This file is part of "Filter Foundry", a filter plugin for Adobe Photoshop
3
        Copyright (C) 2003-2009 Toby Thain, toby@telegraphics.com.au
4
        Copyright (C) 2018-2021 Daniel Marschall, ViaThinkSoft
5
 
6
        This program is free software; you can redistribute it and/or modify
7
        it under the terms of the GNU General Public License as published by
8
        the Free Software Foundation; either version 2 of the License, or
9
        (at your option) any later version.
10
 
11
        This program is distributed in the hope that it will be useful,
12
        but WITHOUT ANY WARRANTY; without even the implied warranty of
13
        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14
        GNU General Public License for more details.
15
 
16
        You should have received a copy of the GNU General Public License
17
        along with this program; if not, write to the Free Software
18
        Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19
*/
20
 
21
//#include <stdio.h>
22
//#include <sound.h>
23
 
24
#include "ff.h"
25
 
26
#include "node.h"
27
#include "funcs.h"
28
#include "y.tab.h"
29
#include "scripting.h"
30
#include <math.h>
31
#include "PIBufferSuite.h"
32
 
33
// GIMP (PSPI) and IrfanView preserve neither *data(gdata), nor pb->parameters between invocations!
34
// For debugging, we can simulate it here
35
//#define DEBUG_SIMULATE_GIMP
36
 
264 daniel-mar 37
// Used to find out which host signatures and memory settings a plugin host has
38
//#define SHOW_HOST_DEBUG
39
 
259 daniel-mar 40
struct node *tree[4];
41
char *err[4];
42
int errpos[4],errstart[4],nplanes,cnvused,chunksize,toprow;
43
value_type slider[8],cell[NUM_CELLS],map[4][0x100];
44
char *expr[4];
45
// long maxSpace;
46
globals_t *gdata;
47
FilterRecordPtr gpb;
48
 
49
#ifdef MAC_ENV
50
        #define HINSTANCE HANDLE
51
        #define hDllInstance NULL /* fake this Windows-only global */
52
#endif
53
 
54
#ifdef WIN_ENV
55
#include "manifest.h"
56
#endif
57
 
58
extern struct sym_rec predefs[];
59
extern int nplanes,varused[];
60
 
61
int checkandinitparams(Handle params);
62
 
63
// MPW MrC requires prototype
64
DLLEXPORT MACPASCAL
65
void ENTRYPOINT(short selector,FilterRecordPtr pb,intptr_t *data,short *result);
66
 
67
unsigned long get_parm_hash(PARM_T parm) {
68
        unsigned long hash;
69
        int i;
70
 
71
        hash = djb2((char*)parm.category);
72
        hash += djb2((char*)parm.title);
73
        hash += djb2((char*)parm.copyright);
74
        hash += djb2((char*)parm.author);
75
        for (i = 0; i < 4; i++) hash += hash += djb2((char*)parm.map[i]);
76
        for (i = 0; i < 8; i++) hash += hash += djb2((char*)parm.ctl[i]);
77
        for (i = 0; i < 4; i++) hash += hash += djb2((char*)parm.formula[i]);
78
 
79
        return hash;
80
}
81
 
82
DLLEXPORT MACPASCAL
83
void ENTRYPOINT(short selector, FilterRecordPtr pb, intptr_t *data, short *result){
84
        static Boolean wantdialog = false;
85
        static Boolean premiereWarnedOnce = false;
86
        OSErr e = noErr;
87
        char *reason;
88
#ifdef WIN_ENV
89
        // For Windows, we use an activation context to enforce that our Manifest resource will
90
        // be used. This allows us to use Visual Styles, even if the host application does not
91
        // support it.
92
        ManifestActivationCtx manifestVars;
93
        BOOL activationContextUsed;
94
#endif
95
 
96
        EnterCodeResource();
97
 
264 daniel-mar 98
        #ifdef SHOW_HOST_DEBUG
259 daniel-mar 99
        char* s = (char*)malloc(512);
100
        sprintf(s, "Host signature: '%c%c%c%c' (%d)\nMaxSpace32 = %d\nMaxSpace64 = %lld\nNum buffer procs: %d", (pb->hostSig >> 24) & 0xFF, (pb->hostSig >> 16) & 0xFF, (pb->hostSig >> 8) & 0xFF, pb->hostSig & 0xFF, pb->hostSig, pb->maxSpace, pb->maxSpace64, pb->bufferProcs->numBufferProcs);
101
        simplealert(s);
264 daniel-mar 102
        #endif
259 daniel-mar 103
 
104
        if (pb->hostSig == HOSTSIG_ADOBE_PREMIERE) {
105
                // DM 19.07.2021 : Tried running the 8BF file in Adobe Premiere 5 (yes, that's possible,
106
                // and there is even a FilterFactory for Premeire!),
107
                // but it crashes in evalpixel() where there is write-access to the "outp".
108
                // Probably the canvas structure is different (maybe it contains frames to achieve transitions?)
109
                if (!premiereWarnedOnce) {
110
                        simplealert(_strdup("This version of Filter Foundry is not compatible with Adobe Premiere!"));
111
                }
112
                premiereWarnedOnce = true;
113
                *result = errPlugInHostInsufficient;
114
                return;
115
        }
116
 
117
        #ifdef DEBUG_SIMULATE_GIMP
118
        *data = 0;
119
        pb->parameters = pb->handleProcs->newProc(1);
120
        #endif
121
 
122
        // Register "gdata" that contains the PARM information and other things which need to be persistant
123
        // and preserve then in *data
124
        // TODO: memory leak? where is the stuff freed?
125
        if (selector != filterSelectorAbout && !*data) {
126
                /*
127
                PSBufferSuite1* pSBufferSuite32 = NULL;
128
 
129
                if ((pb->sSPBasic == 0) ||
130
                        (pb->sSPBasic->AcquireSuite(kPSBufferSuite, kPSBufferSuiteVersion1, (const void**)&pSBufferSuite32)) ||
131
                        (pSBufferSuite32 == NULL))
132
                {
133
                                // Old deprecated buffer suite
134
                                BufferID tempId;
135
                                if ((*result = pb->bufferProcs->allocateProc(sizeof(globals_t), &tempId))) return;
136
                                *data = (intptr_t)pb->bufferProcs->lockProc(tempId, true);
137
                                gdata = (globals_t*)*data;
138
                }
139
                else
140
                {
141
                                // New buffer suite (but only 32-bit version 1, because version 2 has problems with old Photoshop versions)
142
                                // Windows Photoshop 7 and CS 2 accepts kPSBufferSuiteVersion2, but doesn't correctly implement it:
143
                                // The symbols "New" and "GetSpace64" point to memory memory addresses outside the Photoshop.exe address range.
144
                                // (Other Photoshop versions were not tested.)
145
                                // 64-bit support for Windows was established in Photoshop CS 4,
146
                                // and PSBufferSuite2 was first documented in SDK CS 6.
147
                                // So, kPSBufferSuiteVersion2 probably was partically implemented as hidden "Work in progress" version
148
                                // before it was publicly documented.
149
                                // Side note:  pb->bufferSpace64/pb->maxSpace64 was documented in SDK CC 2017.
150
                                //             pb->bufferProcs->allocateProc64/spaceProc64 was documented in SDK CS 6.
151
                                unsigned32 siz = sizeof(globals_t);
152
                                *data = (intptr_t)pSBufferSuite32->New(&siz, siz);
153
                                if ((*data == 0) || (siz == 0)) {
154
                                                *result = errPlugInHostInsufficient; // TODO: what is the correct error code for "out of memory"?
155
                                                return;
156
                                }
157
                                gdata = (globals_t*)*data;
158
                                pb->sSPBasic->ReleaseSuite(kPSBufferSuite, kPSBufferSuiteVersion1);
159
                }
160
                gdata->standalone = gdata->parmloaded = false;
161
                */
162
 
163
                // We have 3 options:
164
                // - The deprecated buffer suite (pb->bufferProcs), works fine
165
                // - The recommended buffer suite (kPSBufferSuite), does NOT work (causes memory corruption?) and is not available on some hosts!
166
                //   Either I do something wrong, or maybe it cannot be used to store data between invocations?
167
                // - Using malloc(), which works also fine and is more independent from the host and easier
168
                *data = (intptr_t)malloc(sizeof(globals_t));
169
                if (*data == 0) return;
170
                gdata = (globals_t*)*data;
171
                gdata->standalone = gdata->parmloaded = false; // they will be set later
172
        }
173
        else {
174
                // We have data from the previous invocation. Use it instead
175
                gdata = (globals_t*)*data;
176
        }
177
 
178
        #ifdef WIN_ENV
179
        activationContextUsed = ActivateManifest((HMODULE)hDllInstance, 1, &manifestVars);
180
        #endif
181
 
182
        gpb = pb;
183
 
184
        nplanes = MIN(pb->planes,4);
185
 
186
        switch (selector){
187
        case filterSelectorAbout:
188
                if (!gdata) {
189
                        gdata = (globals_t*)malloc(sizeof(globals_t));
190
                        if (!gdata) break;
191
                        gdata->standalone = gdata->parmloaded = readPARMresource((HMODULE)hDllInstance,&reason,READ_OBFUSC);
192
                        DoAbout((AboutRecordPtr)pb);
193
                        free(gdata);
194
                        gdata = NULL;
195
                } else {
196
                        DoAbout((AboutRecordPtr)pb);
197
                }
198
                break;
199
        case filterSelectorParameters:
200
                wantdialog = true;
201
                break;
202
        case filterSelectorPrepare:
203
                DoPrepare(pb);
204
                init_symtab(predefs); // ready for parser calls
205
                init_trigtab();
206
                break;
207
        case filterSelectorStart:
208
                if (HAS_BIG_DOC(pb)) {
209
                        // The BigDocument structure is required if the document is larger than 30,000 pixels
210
                        // It deprecates imageSize, filterRect, inRect, outRect, maskRect, floatCoord, and wholeSize.
211
                        // By setting it to nonzero, we communicate to Photoshop that we support the BigDocument structure.
212
                        pb->bigDocumentData->PluginUsing32BitCoordinates = true;
213
                }
214
 
215
                /* initialise the parameter handle that Photoshop keeps for us */
216
                if(!pb->parameters)
217
                        pb->parameters = PINEWHANDLE(1); // don't set initial size to 0, since some hosts (e.g. GIMP/PSPI) are incompatible with that.
218
 
219
                wantdialog |= checkandinitparams(pb->parameters);
220
 
221
                /* wantdialog = false means that we never got a Parameters call, so we're not supposed to ask user */
222
                if( wantdialog && (!gdata->standalone || gdata->parm.popDialog) ){
223
                        if( maindialog(pb) ){
224
                                if (!host_preserves_parameters()) {
264 daniel-mar 225
                                        /* Workaround for GIMP/PSPI, to avoid that formulas vanish when you re-open the main window.
226
                                           The reason is a bug in PSPI: The host should preserve the value of pb->parameters, which PSPI does not do.
227
                                           Also, all global variables are unloaded, so the plugin cannot preserve any data.
228
                                           Workaround in FF 1.7: If the host GIMP is detected, then a special mode will be activated.
229
                                           This mode saves the filter data into a temporary file "FilterFoundryXX.afs" and loads it
230
                                           when the window is opened again. */
231
                                        // Workaround: Save settings in "FilterFoundryXX.afs" if the host does not preserve pb->parameters
232
                                        char outfilename[255];
233
                                        char* tempdir;
234
                                        int hash;
235
                                        StandardFileReply sfr;
236
                                        char* bakexpr[4];
259 daniel-mar 237
 
264 daniel-mar 238
                                        sfr.sfGood = true;
239
                                        sfr.sfReplacing = true;
240
                                        sfr.sfType = PS_FILTER_FILETYPE;
259 daniel-mar 241
 
264 daniel-mar 242
                                        tempdir = getenv("TMP");
243
                                        #ifdef WIN_ENV
244
                                        if (strlen(tempdir) > 0) strcat(tempdir, "\\");
245
                                        #else
246
                                        if (strlen(tempdir) > 0) strcat(tempdir, "/");
247
                                        #endif
259 daniel-mar 248
 
264 daniel-mar 249
                                        hash = (gdata->standalone) ? get_parm_hash(gdata->parm) : 0;
250
                                        sprintf(outfilename, "%sFilterFoundry%d.afs", tempdir, hash);
251
 
252
                                        myc2pstrcpy(sfr.sfFile.name, outfilename);
253
                                        #ifdef WIN_ENV
254
                                        sfr.nFileExtension = (WORD)(strlen(outfilename) - strlen(".afs") + 1);
255
                                        #endif
256
                                        sfr.sfScript = 0; // FIXME: is that ok?
257
 
258
                                        // We only want the parameters (ctl,map) in the temporary .afs file
259
                                        // It is important to remove the expressions, otherwise they would be
260
                                        // revealed in the temporary files.
261
                                        if (gdata->standalone) {
262
                                                bakexpr[0] = expr[0];
263
                                                bakexpr[1] = expr[1];
264
                                                bakexpr[2] = expr[2];
265
                                                bakexpr[3] = expr[3];
266
                                                expr[0] = _strdup("r");
267
                                                expr[1] = _strdup("g");
268
                                                expr[2] = _strdup("b");
269
                                                expr[3] = _strdup("a");
259 daniel-mar 270
                                        }
264 daniel-mar 271
 
272
                                        savefile(&sfr);
273
 
274
                                        if (gdata->standalone) {
275
                                                free(expr[0]); expr[0] = bakexpr[0];
276
                                                free(expr[1]); expr[1] = bakexpr[1];
277
                                                free(expr[2]); expr[2] = bakexpr[2];
278
                                                free(expr[3]); expr[3] = bakexpr[3];
279
                                        }
280
                                } else {
281
                                        /* update stored parameters from new user settings */
282
                                        saveparams(pb->parameters);
259 daniel-mar 283
                                }
284
                        }else
285
                                e = userCanceledErr;
286
                }
287
                wantdialog = false;
288
 
289
                if(!e){
290
                        if(setup(pb)){
291
                                DoStart(pb);
292
                        }else{
293
                                SYSBEEP(1);
294
                                e = filterBadParameters;
295
                        }
296
                }
297
                break;
298
        case filterSelectorContinue:
299
                e = DoContinue(pb);
300
                break;
301
        case filterSelectorFinish:
302
                DoFinish(pb);
303
                break;
304
        default:
305
                e = filterBadParameters;
306
        }
307
 
308
        *result = e;
309
 
310
        #ifdef WIN_ENV
311
        if (activationContextUsed) DeactivateManifest(&manifestVars);
312
        #endif
313
 
314
        ExitCodeResource();
315
}
316
 
317
int checkandinitparams(Handle params){
318
        char *reasonstr,*reason;
319
        int i,bUninitializedParams;
320
        Boolean showdialog;
321
 
322
        if (!host_preserves_parameters()) {
323
                // Workaround: Load settings in "FilterFoundryXX.afs" if host does not preserve pb->parameters
324
                char outfilename[255];
325
                char* tempdir;
326
                int hash;
327
                Boolean isStandalone;
328
                StandardFileReply sfr;
264 daniel-mar 329
                char* bakexpr[4];
330
 
259 daniel-mar 331
                sfr.sfGood = true;
332
                sfr.sfReplacing = true;
333
                sfr.sfType = PS_FILTER_FILETYPE;
334
 
335
                // We need to set gdata->standalone after loadfile(), but we must call readPARMresource() before loadfile()
336
                // Reason: readPARMresource() reads parameters from the DLL while loadfile() reads parameters from the AFS file
337
                // But loadfile() will reset gdata->standalone ...
338
                isStandalone = readPARMresource((HMODULE)hDllInstance, &reason, READ_OBFUSC);
339
 
264 daniel-mar 340
                tempdir = getenv("TMP");
341
                #ifdef WIN_ENV
342
                if (strlen(tempdir) > 0) strcat(tempdir, "\\");
343
                #else
344
                if (strlen(tempdir) > 0) strcat(tempdir, "/");
345
                #endif
259 daniel-mar 346
 
264 daniel-mar 347
                hash = (isStandalone) ? get_parm_hash(gdata->parm) : 0;
348
                sprintf(outfilename, "%sFilterFoundry%d.afs", tempdir, hash);
259 daniel-mar 349
 
264 daniel-mar 350
                myc2pstrcpy(sfr.sfFile.name, outfilename);
351
                #ifdef WIN_ENV
352
                sfr.nFileExtension = (WORD)(strlen(outfilename) - strlen(".afs") + 1);
353
                #endif
354
                sfr.sfScript = 0; // FIXME: is that ok?
259 daniel-mar 355
 
264 daniel-mar 356
                // We only want the parameters (ctl,map) in the temporary .afs file
357
                if (isStandalone) {
358
                        bakexpr[0] = my_strdup(expr[0]);
359
                        bakexpr[1] = my_strdup(expr[1]);
360
                        bakexpr[2] = my_strdup(expr[2]);
361
                        bakexpr[3] = my_strdup(expr[3]);
362
                }
363
 
364
                if (loadfile(&sfr, &reason)) {
365
                        gdata->standalone = gdata->parmloaded = isStandalone;
366
 
367
                        if (isStandalone) {
368
                                free(expr[0]); expr[0] = bakexpr[0];
369
                                free(expr[1]); expr[1] = bakexpr[1];
370
                                free(expr[2]); expr[2] = bakexpr[2];
371
                                free(expr[3]); expr[3] = bakexpr[3];
259 daniel-mar 372
                        }
264 daniel-mar 373
 
374
                        return true;
259 daniel-mar 375
                }
376
        }
377
 
378
        if( (bUninitializedParams = !(params && readparams(params,false,&reasonstr))) ){
379
                /* either the parameter handle was uninitialised,
380
                   or the parameter data couldn't be read; set default values */
381
 
382
                // see if saved parameters exist
383
                gdata->standalone = gdata->parmloaded = readPARMresource((HMODULE)hDllInstance,&reason,READ_OBFUSC);
384
 
385
 
386
                if(!gdata->standalone){
387
                        // no saved settings (not standalone)
388
                        for(i = 0; i < 8; ++i)
389
                                slider[i] = i*10+100;
390
                        for(i = 0; i < 4; ++i)
391
                                if(expr[i])
392
                                        free(expr[i]);
393
                        if(gpb->imageMode == plugInModeRGBColor){
394
                                expr[0] = _strdup("r");
395
                                expr[1] = _strdup("g");
396
                                expr[2] = _strdup("b");
397
                                expr[3] = _strdup("a");
398
                        }else{
399
                                expr[0] = _strdup("c");
400
                                expr[1] = _strdup("c");
401
                                expr[2] = _strdup("c");
402
                                expr[3] = _strdup("c");
403
                        }
404
                }
405
        }
406
 
407
        // let scripting system change parameters, if we're scripted;
408
        // user may want to force display of dialog during scripting playback
409
        switch (ReadScriptParamsOnRead()) {
410
        case SCR_SHOW_DIALOG:
411
                showdialog = true;
412
                break;
413
        case SCR_HIDE_DIALOG:
414
                showdialog = false;
415
                break;
416
        default:
417
        case SCR_NO_SCRIPT:
418
                showdialog = bUninitializedParams;
419
                break;
420
        }
421
 
422
        saveparams(params);
423
 
424
        return showdialog;
425
}
426
 
427
Boolean host_preserves_parameters() {
428
        #ifdef DEBUG_SIMULATE_GIMP
429
        return false;
430
        #endif
431
 
432
        if (gpb->hostSig == HOSTSIG_GIMP) return false;
433
        if (gpb->hostSig == HOSTSIG_IRFANVIEW) return false;
434
 
435
        // We just assume the other hosts preserve the parameters
436
        return true;
437
}
438
 
439
int64_t maxspace(){
440
        // Please see "Hosts.md" for details about the MaxSpace implementations of tested plugins
441
 
442
        // Plugins that don't support MaxSpace64 shall set the field to zero; then we will use MaxSpace instead.
443
        // Also check "gpb->bufferProcs->numBufferProcs" to see if 64 bit API is available
444
        if ((gpb->bufferProcs->numBufferProcs >= 8) && (gpb->maxSpace64 > 0)) {
445
                uint64_t maxSpace64 = gpb->maxSpace64;
446
 
447
                return maxSpace64;
448
        } else {
449
                // Note: If maxSpace gets converted from Int32 to unsigned int, we can reach up to 4 GB RAM. However, after this, there will be a wrap to 0 GB again.
450
                unsigned int maxSpace32 = (unsigned int) gpb->maxSpace;
451
                uint64_t maxSpace64 = maxSpace32;
452
 
453
                if (gpb->hostSig == HOSTSIG_IRFANVIEW) maxSpace64 *= 1024; // IrfanView is giving Kilobytes instead of Bytes
454
                //if (gpb->hostSig == HOSTSIG_SERIF_PHOTOPLUS) maxSpace64 *= 1024; // TODO: Serif PhotoPlus also gives Kilobytes instead of bytes. But since it uses not a unique host signature, there is nothing we can do???
455
 
456
                return maxSpace64;
457
        }
458
}
459
 
460
Boolean maxspace_available() {
461
        // Please see "Hosts.md" for details about the MaxSpace implementations of tested plugins
462
 
463
        // GIMP PSPI sets MaxSpace to hardcoded 100 MB
464
        if (gpb->hostSig == HOSTSIG_GIMP) return false;
465
 
466
        // HOSTSIG_PAINT_NET sets MaxSpace to hardcoded 1 GB, see https://github.com/0xC0000054/PSFilterPdn/issues/5
467
        // Comment by the host author "This was done to avoid any compatibility issues with plugins handling 2 GB - 1"
468
        if (gpb->hostSig == HOSTSIG_PAINT_NET) return false;
469
 
470
        return true;
471
}
472
 
473
void DoPrepare(FilterRecordPtr pb){
474
        int i;
475
 
476
        for(i = 4; i--;){
477
                if(expr[i]||tree[i]) DBG("expr[] or tree[] non-NULL in Prepare!");
478
                expr[i] = NULL;
479
                tree[i] = NULL;
480
        }
481
 
482
        // Commented out by DM, 18 Dec 2018:
483
        // This code did not work on systems with 8 GB RAM:
484
        /*
485
        long space = (pb->maxSpace*9)/10; // don't ask for more than 90% of available memory
486
 
487
        maxSpace = 512L<<10; // this is a wild guess, actually
488
        if(maxSpace > space)
489
                        maxSpace = space;
490
        pb->maxSpace = maxSpace;
491
        */
492
 
493
        // New variant:
494
        if (maxspace_available()) {
495
                pb->maxSpace = (int32)ceil((maxspace()/10.)*9); // don't ask for more than 90% of available memory
496
                // FIXME: Also maxSpace64
497
        }
498
}
499
 
500
void RequestNext(FilterRecordPtr pb,long toprow){
501
        /* Request next block of the image */
502
 
503
        pb->inLoPlane = pb->outLoPlane = 0;
504
        pb->inHiPlane = pb->outHiPlane = nplanes-1;
505
 
506
        if (HAS_BIG_DOC(pb)) {
507
                // if any of the formulae involve random access to image pixels,
508
                // ask for the entire image
509
                if (needall) {
510
                        SETRECT(BIGDOC_IN_RECT(pb), 0, 0, BIGDOC_IMAGE_SIZE(pb).h, BIGDOC_IMAGE_SIZE(pb).v);
511
                } else {
512
                        // TODO: This does not work with GIMP. So, if we are using GIMP, we should
513
                        //       somehow always use "needall=true", and/or find out why this doesn't work
514
                        //       with GIMP.
515
 
516
                        // otherwise, process the filtered area, by chunksize parts
517
                        BIGDOC_IN_RECT(pb).left = BIGDOC_FILTER_RECT(pb).left;
518
                        BIGDOC_IN_RECT(pb).right = BIGDOC_FILTER_RECT(pb).right;
519
                        BIGDOC_IN_RECT(pb).top = (int32)toprow;
520
                        BIGDOC_IN_RECT(pb).bottom = (int32)MIN(toprow + chunksize, BIGDOC_FILTER_RECT(pb).bottom);
521
 
522
                        if (cnvused) {
523
                                // cnv() needs one extra pixel in each direction
524
                                if (BIGDOC_IN_RECT(pb).left > 0)
525
                                        --BIGDOC_IN_RECT(pb).left;
526
                                if (BIGDOC_IN_RECT(pb).right < BIGDOC_IMAGE_SIZE(pb).h)
527
                                        ++BIGDOC_IN_RECT(pb).right;
528
                                if (BIGDOC_IN_RECT(pb).top > 0)
529
                                        --BIGDOC_IN_RECT(pb).top;
530
                                if (BIGDOC_IN_RECT(pb).bottom < BIGDOC_IMAGE_SIZE(pb).v)
531
                                        ++BIGDOC_IN_RECT(pb).bottom;
532
                        }
533
                }
534
                BIGDOC_OUT_RECT(pb) = BIGDOC_FILTER_RECT(pb);
535
                /*
536
                {char s[0x100];sprintf(s,"RequestNext needall=%d inRect=(%d,%d,%d,%d) filterRect=(%d,%d,%d,%d)",
537
                                needall,
538
                                BIGDOC_IN_RECT(pb).left,BIGDOC_IN_RECT(pb).top,BIGDOC_IN_RECT(pb).right,BIGDOC_IN_RECT(pb).bottom,
539
                                BIGDOC_FILTER_RECT(pb).left,BIGDOC_FILTER_RECT(pb).top,BIGDOC_FILTER_RECT(pb).right,BIGDOC_FILTER_RECT(pb).bottom);dbg(s);}
540
                */
541
        } else {
542
                // if any of the formulae involve random access to image pixels,
543
                // ask for the entire image
544
                if (needall) {
545
                        SETRECT(IN_RECT(pb), 0, 0, IMAGE_SIZE(pb).h, IMAGE_SIZE(pb).v);
546
                }
547
                else {
548
                        // TODO: This does not work with GIMP. So, if we are using GIMP, we should
549
                        //       somehow always use "needall=true", and/or find out why this doesn't work
550
                        //       with GIMP.
551
 
552
                        // otherwise, process the filtered area, by chunksize parts
553
                        IN_RECT(pb).left = FILTER_RECT(pb).left;
554
                        IN_RECT(pb).right = FILTER_RECT(pb).right;
555
                        IN_RECT(pb).top = (int16)toprow;
556
                        IN_RECT(pb).bottom = (int16)MIN(toprow + chunksize, FILTER_RECT(pb).bottom);
557
 
558
                        if (cnvused) {
559
                                // cnv() needs one extra pixel in each direction
560
                                if (IN_RECT(pb).left > 0)
561
                                        --IN_RECT(pb).left;
562
                                if (IN_RECT(pb).right < IMAGE_SIZE(pb).h)
563
                                        ++IN_RECT(pb).right;
564
                                if (IN_RECT(pb).top > 0)
565
                                        --IN_RECT(pb).top;
566
                                if (IN_RECT(pb).bottom < IMAGE_SIZE(pb).v)
567
                                        ++IN_RECT(pb).bottom;
568
                        }
569
                }
570
                OUT_RECT(pb) = FILTER_RECT(pb);
571
                /*
572
                {char s[0x100];sprintf(s,"RequestNext needall=%d inRect=(%d,%d,%d,%d) filterRect=(%d,%d,%d,%d)",
573
                                needall,
574
                                IN_RECT(pb).left,IN_RECT(pb).top,IN_RECT(pb).right,IN_RECT(pb).bottom,
575
                                FILTER_RECT(pb).left,FILTER_RECT(pb).top,FILTER_RECT(pb).right,FILTER_RECT(pb).bottom);dbg(s);}
576
                */
577
        }
578
}
579
 
580
void DoStart(FilterRecordPtr pb){
264 daniel-mar 581
        /* Global variable "needall": if src() or rad() functions are used, random access to the image data is required,
582
           so we must request the entire image in a single chunk, otherwise we will use chunksize "CHUNK_ROWS". */
259 daniel-mar 583
        if (HAS_BIG_DOC(pb)) {
584
                chunksize = needall ? (BIGDOC_FILTER_RECT(pb).bottom - BIGDOC_FILTER_RECT(pb).top) : CHUNK_ROWS;
585
                toprow = BIGDOC_FILTER_RECT(pb).top;
586
        } else {
587
                chunksize = needall ? (FILTER_RECT(pb).bottom - FILTER_RECT(pb).top) : CHUNK_ROWS;
588
                toprow = FILTER_RECT(pb).top;
589
        }
590
        RequestNext(pb, toprow);
591
}
592
 
593
OSErr DoContinue(FilterRecordPtr pb){
594
        OSErr e = noErr;
595
        long outoffset;
596
 
597
        if (HAS_BIG_DOC(pb)) {
598
                VRect fr;
599
                if (needall) {
600
                        fr = BIGDOC_FILTER_RECT(pb);  // filter whole selection at once
601
                } else if (cnvused) {
602
                        // we've requested one pixel extra all around
603
                        // (see RequestNext()), just for access purposes. But filter
604
                        // original selection only.
605
                        fr.left = BIGDOC_FILTER_RECT(pb).left;
606
                        fr.right = BIGDOC_FILTER_RECT(pb).right;
607
                        fr.top = toprow;
608
                        fr.bottom = MIN(toprow + chunksize, BIGDOC_FILTER_RECT(pb).bottom);
609
                } else {  // filter whatever portion we've been given
610
                        fr = BIGDOC_IN_RECT(pb);
611
                }
612
 
613
                outoffset = (long)pb->outRowBytes * (fr.top - BIGDOC_OUT_RECT(pb).top)
614
                        + (long)nplanes * (fr.left - BIGDOC_OUT_RECT(pb).left);
615
 
616
                if (!(e = process_scaled_bigdoc(pb, true, fr, fr,
617
                        (Ptr)pb->outData + outoffset, pb->outRowBytes, 1.)))
618
                {
619
                        toprow += chunksize;
620
                        if (toprow < BIGDOC_FILTER_RECT(pb).bottom)
621
                                RequestNext(pb, toprow);
622
                        else {
623
                                SETRECT(BIGDOC_IN_RECT(pb), 0, 0, 0, 0);
624
                                BIGDOC_OUT_RECT(pb) = BIGDOC_MASK_RECT(pb) = BIGDOC_IN_RECT(pb);
625
                        }
626
                }
627
        } else {
628
                Rect fr;
629
                if (needall) {
630
                        fr = FILTER_RECT(pb);  // filter whole selection at once
631
                } else if (cnvused) {
632
                        // we've requested one pixel extra all around
633
                        // (see RequestNext()), just for access purposes. But filter
634
                        // original selection only.
635
                        fr.left = FILTER_RECT(pb).left;
636
                        fr.right = FILTER_RECT(pb).right;
637
                        fr.top = toprow;
638
                        fr.bottom = MIN(toprow + chunksize, FILTER_RECT(pb).bottom);
639
                } else {  // filter whatever portion we've been given
640
                        fr = IN_RECT(pb);
641
                }
642
 
643
                outoffset = (long)pb->outRowBytes*(fr.top - OUT_RECT(pb).top)
644
                        + (long)nplanes*(fr.left - OUT_RECT(pb).left);
645
 
646
                if(!(e = process_scaled_olddoc(pb, true, fr, fr,
647
                        (Ptr)pb->outData+outoffset, pb->outRowBytes, 1.)))
648
                {
649
                        toprow += chunksize;
650
                        if(toprow < FILTER_RECT(pb).bottom)
651
                                RequestNext(pb,toprow);
652
                        else{
653
                                SETRECT(IN_RECT(pb),0,0,0,0);
654
                                OUT_RECT(pb) = MASK_RECT(pb) = IN_RECT(pb);
655
                        }
656
                }
657
        }
658
        return e;
659
}
660
 
661
void DoFinish(FilterRecordPtr pb){
662
        int i;
663
 
664
        WriteScriptParamsOnRead();
665
 
666
        for(i = 4; i--;){
667
                freetree(tree[i]);
668
                if(expr[i]) free(expr[i]);
669
        }
670
}