2 * Parsing of the structure of the YPP client's displayed image
5 * This is part of ypp-sc-tools, a set of third-party tools for assisting
6 * players of Yohoho Puzzle Pirates.
8 * Copyright (C) 2009 Ian Jackson <ijackson@chiark.greenend.org.uk>
10 * This program is free software: you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation, either version 3 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program. If not, see <http://www.gnu.org/licenses/>.
23 * Yohoho and Puzzle Pirates are probably trademarks of Three Rings and
24 * are used without permission. This program is not endorsed or
25 * sponsored by Three Rings.
28 #include "structure.h"
30 DEBUG_DEFINE_DEBUGF(struct)
32 #define START_MAIN {200,200}
34 #define INTERESTING_COLUMNS 7
35 #define TEXT_COLUMNS 2
40 int commbasey, comminty, pagerheight;
41 int colrightx[INTERESTING_COLUMNS];
44 const CanonImage *page_images[MAX_PAGES];
45 static PageStruct page_structs[MAX_PAGES];
46 const RgbImage *page0_rgbimage;
49 static int text_h=-1, columns=-1;
53 static const CanonImage *cim;
56 char *archipelago, *island;
58 #define OTHERCOORD_x y
59 #define OTHERCOORD_y x
62 void select_page(int page) {
63 cim= page_images[page];
64 s= page_structs[page];
70 Rgb rgbx; /* on screen, REVERSED BYTES ie r||g||b */
71 char c; /* canonical */
74 const CanonColourInfo canoncolourinfo_table[]= {
75 { 0x475A5E, '*' }, /* edge */
76 { 0x2C5F7A, '*' }, /* edge just under box heading shadow */
77 { 0xC5C7AE, '*' }, /* blank area of partial commodities list */
78 { 0x6B828C, '*' }, /* background of ship status meter area */
79 { 0x934405, '*' }, /* border of ship meter area */
80 { 0x7D9094, '+' }, /* interbox */
81 { 0x022158, 'O' }, /* ahoy /w output foreground */
82 { 0xB5B686, 'H' }, /* ahoy /w output heading background */
84 { 0xBDC5BF, ' ' }, /* background - pale Sugar cane, etc. */
85 { 0xADB5AF, ' ' }, /* background - dark */
86 { 0xC7E1C3, ' ' }, /* background - pale Swill, etc. */
87 { 0xB5CFB1, ' ' }, /* background - dark */
88 { 0xD6CEB0, ' ' }, /* background - pale Madder, etc. */
89 { 0xC8C0A2, ' ' }, /* background - dark */
90 { 0xE0E1D3, ' ' }, /* background - pale Lorandite, etc. */
91 { 0xD0D1C3, ' ' }, /* background - dark */
92 { 0xE5E6C1, ' ' }, /* background - pale Cloth */
93 { 0xD7D8B3, ' ' }, /* background - dark */
94 { 0xEDDED9, ' ' }, /* background - pale Dye */
95 { 0xDACBC6, ' ' }, /* background - dark */
96 { 0xD3DEDF, ' ' }, /* background - pale Paint */
97 { 0xC5D0D1, ' ' }, /* background - dark */
98 { 0xDCD1CF, ' ' }, /* background - pale Enamel */
99 { 0xCEC3C1, ' ' }, /* background - dark */
100 { 0xF3F6F5, ' ' }, /* background - pale fruit */
101 { 0xE2E7E5, ' ' }, /* background - dark */
103 { 0x000000, 'o' }, /* foreground */
104 { 0xD4B356, ' ' }, /* background (cursor) */
105 { 0xFFFFFF, 'o' }, /* foreground (cursor) */
107 { 0x5B93BF, '_' }, /* selector dropdown background */
108 { 0xD7C94F, 'X' }, /* selector dropdown foreground */
112 CanonColourInfoReds canoncolourinfo_tree;
114 void canon_colour_prepare(void) {
115 const CanonColourInfo *cci;
116 for (cci=canoncolourinfo_table; cci->c; cci++) {
117 unsigned char r= cci->rgbx >> 16;
118 unsigned char g= cci->rgbx >> 8;
119 unsigned char b= cci->rgbx;
121 CanonColourInfoGreens *greens= canoncolourinfo_tree.red2[r];
123 greens= canoncolourinfo_tree.red2[r]= mmalloc(sizeof(*greens));
127 CanonColourInfoBlues *blues= greens->green2[g];
129 blues= greens->green2[g]= mmalloc(sizeof(*blues));
130 memset(blues, '?', sizeof(*blues));
133 blues->blue2[b]= cci->c;
137 static inline char get(int x, int y) { return cim->d[y * cim->w + x]; }
138 static inline char get_p(Point p) { return get(p.x,p.y); }
141 static void mustfail1(const char *file, int line, const char *what) {
144 "Unable to figure out contents of YPP client display.\n"
145 "Please check the following:\n"
146 " * YPP client is showing commodity listing screen\n"
147 " * YPP client window is on top (we try to raise it but your window\n"
148 " manager might have prevented that from succeeding)\n"
150 "If all of these are true, please report this as a fault.\n\n"
152 " %s:%d: requirement failed:\n"
156 static void mustfail2(void) NORET;
157 static void mustfail2(void) {
158 fprintf(stderr, "\n\nGiving up.\n");
162 #define MUST(x, ifnot) do{ \
163 if (__builtin_expect(!(x), 0)) { \
164 mustfail1(__FILE__,__LINE__,#x); \
170 #define MP(v) fprintf(stderr," %s=%d,%d",#v,(v).x,(v).y)
171 #define MI(v) fprintf(stderr," %s=%d", #v,(v))
172 #define MIL(v) fprintf(stderr," %s=%ld", #v,(v))
173 #define MRGB(v) fprintf(stderr," %s=%06"PRIx32, #v,(v))
174 #define MC(v) fprintf(stderr," %s='%c'", #v,(v))
175 #define MS(v) fprintf(stderr," %s=\"%s\"", #v,(v))
176 #define MF(v) fprintf(stderr," %s=%f", #v,(v))
177 #define MSB(v) fprintf(stderr," %s", (v))
178 #define MR(v) fprintf(stderr," %s=%d,%d..%d,%d",\
179 #v,(v).tl.x,(v).tl.y,(v).br.x,(v).br.y)
182 #define REQUIRE_RECTANGLE(tlx,tly,brx,bry,ok) \
183 require_rectangle(tlx, tly, brx, bry, ok, __LINE__);
185 #define FOR_P_RECT(p,rr) \
186 for ((p).x=(rr).tl.x; (p).x<=(rr).br.x; (p).x++) \
187 for ((p).y=(rr).tl.y; (p).y<=(rr).br.y; (p).y++)
189 static void require_rectangle_r(Rect rr, const char *ok, int lineno) {
193 MUST( strchr(ok,c), ({
194 MI(lineno),MR(rr);MP(p);MS(ok);
198 static void require_rectangle(int tlx, int tly, int brx, int bry,
199 const char *ok, int lineno) {
200 Rect rr= {{tlx,tly},{brx,bry}};
201 require_rectangle_r(rr, ok, lineno);
204 static void debug_rect(const char *what, int whati, Rect rr) {
205 if (!DEBUGP(rect)) return;
207 fprintf(debug, "%s %d: %d,%d..%d,%d:\n", what, whati,
208 rr.tl.x,rr.tl.y, rr.br.x,rr.br.y);
209 w= rr.br.x - rr.tl.x + 1;
210 for (y=rr.tl.y; y<=rr.br.y; y++) {
211 fprintf(debug, "%4d%*s|", y, rr.tl.x,"");
212 fwrite(cim->d + y*cim->w + rr.tl.x, 1, w, debug);
219 static int commod_selector_matches(Rect search, const char *const *all,
220 int allh, int allw) {
221 int alloffy, alloffx;
222 for (alloffy=0; alloffy < search.br.y; alloffy++) {
223 if (alloffy+allh-1 < search.tl.y) continue;
224 for (alloffx=search.tl.x; alloffx+allw-1 <= search.br.x; alloffx++) {
227 for (x=0; x<allw; x++)
228 for (y=0; y<allh; y++) {
230 if (want==' ') continue;
231 if (get(alloffx+x, alloffy+y) == want)
236 debugf("CHECKCOMMOD alloff=%d,%d good=%d bad=%d\n",
237 alloffx,alloffy, good,bad);
245 #define WALK_UNTIL(point,coord,increm,last,edge) \
247 if ((point).coord == (last)+(increm)) break; \
248 if (get_p((point)) == (edge)) { (point).coord -= (increm); break; } \
249 (point).coord += (increm); \
252 #define WALK_UNTIL_MUST(point,coord,increm,last,edge) \
254 WALK_UNTIL(point,coord,increm,last,edge); \
255 MUST( (point).coord != (last)+(increm), \
256 MP(point); MI(increm); MI(last); MC(edge); \
260 #define ADJUST_BOX(search,insidechrs,OP,want, lim,LIMIT_MUST, TLBR,XY,increm) \
262 LIMIT_MUST( (search).tl.XY != (search).br.XY && \
263 (search).TLBR.XY != (lim), \
264 MR((search));MSB(#TLBR);MSB(#XY) ); \
266 Point p=(search).tl; \
267 for (p.XY=(search).TLBR.XY; \
268 p.OTHERCOORD_##XY <= (search).br.OTHERCOORD_##XY; \
269 p.OTHERCOORD_##XY++) \
270 got += !!strchr(insidechrs, get_p(p)); \
271 if ((got) OP (want)) \
273 (search).TLBR.XY += increm; \
276 void find_structure(const CanonImage *im,
277 PageStruct **pagestruct_r,
278 int *max_relevant_y_r,
279 Point *commod_focus_point_r,
280 Point *commod_page_point_r,
281 Point *commod_focuslast_point_r) {
285 Rect whole = { {0,0}, {cim->w-1,cim->h-1} };
289 for (y=0, xscaleunit=1; y<4; y++, xscaleunit*=10) {
291 for (x=0; x<=cim->w; x++) {
292 if (x % xscaleunit) fputc(' ',debug);
293 else fprintf(debug,"%d",(x / xscaleunit)%10);
299 Point mainr_tl= START_MAIN;
301 WALK_UNTIL_MUST(s.mr.tl, y,-1, whole.tl.y, ' ');
304 WALK_UNTIL_MUST(s.mr.tl, x,-1, whole.tl.x, '*');
305 WALK_UNTIL_MUST(s.mr.tl, y,-1, whole.tl.y, '*');
306 WALK_UNTIL_MUST(s.mr.br, x,+1, whole.br.x, '*');
307 WALK_UNTIL_MUST(s.mr.br, y,+1, whole.br.y, '*');
309 REQUIRE_RECTANGLE(s.mr.tl.x-1, s.mr.tl.y, s.mr.tl.x-1, s.mr.br.y, "*");
310 REQUIRE_RECTANGLE(s.mr.br.x+1, s.mr.tl.y, s.mr.br.x+1, s.mr.br.y, "*");
311 REQUIRE_RECTANGLE(s.mr.tl.x, s.mr.tl.y-1, s.mr.br.x, s.mr.tl.y-1, "*");
312 REQUIRE_RECTANGLE(s.mr.tl.x, s.mr.br.y+1, s.mr.br.x, s.mr.br.y+1, "*");
314 #define CHECK_STRIP_BORDER(tlbr,xy,increm) \
316 Point csb_p, csb_p2; \
319 csb_p.x++; csb_p.y++; \
321 csb_p2.x++; csb_p2.y++; \
322 csb_p.xy= s.mr.tlbr.xy; \
323 csb_p2.xy= s.mr.tlbr.xy; \
324 if (get_p(csb_p)=='+' && \
325 get_p(csb_p2)=='+') { \
327 csb_r.tl.xy= csb_p.xy; \
328 csb_r.br.xy= csb_p.xy; \
329 require_rectangle_r(csb_r, "+", __LINE__); \
330 s.mr.tlbr.xy += increm; \
334 debug_rect("s.mr",0, s.mr);
336 CHECK_STRIP_BORDER(tl,x,+1);
337 CHECK_STRIP_BORDER(tl,y,+1);
338 CHECK_STRIP_BORDER(br,x,-1);
339 CHECK_STRIP_BORDER(br,y,-1);
341 debug_rect("s.mr",1, s.mr);
343 Rect updown= {START_MAIN,START_MAIN};
345 updown.br.x += chkw-1;
347 debug_rect("updown",__LINE__,updown);
349 ADJUST_BOX(updown, "+", >=,chkw, s.mr.tl.y, MUST, tl,y,-1);
350 debug_rect("updown",__LINE__,updown);
351 updown.br.y= updown.tl.y;
352 updown.tl.y= updown.tl.y-1;
354 ADJUST_BOX(updown, "+*",>=,chkw, s.mr.tl.y-1, MUST, tl,y,-1);
355 debug_rect("updown",__LINE__,updown);
357 s.commbasey= updown.tl.y + 1;
358 s.comminty= updown.br.y - updown.tl.y;
360 Rect across= {{ s.mr.tl.x - 1, s.commbasey },
361 { s.mr.tl.x, s.commbasey + s.comminty-2 }};
365 #define LIMIT_QUITEQ(cond,mp) { if (!(cond)) break; }
366 debug_rect("across",colno*1000000+__LINE__, across);
367 ADJUST_BOX(across, "+",>=,s.comminty-1,s.mr.br.x,LIMIT_QUITEQ,br,x,+1);
368 debug_rect("across",colno*1000000+__LINE__, across);
370 MUST( colno < MAX_COLUMNS,
371 MI(colno);MR(across);MR(s.mr);MI(s.commbasey); );
372 int colrx= across.br.x-1;
373 if (colrx >= s.mr.br.x) colrx= s.mr.br.x;
374 if (colno < INTERESTING_COLUMNS)
375 s.colrightx[colno]= colrx;
379 if (across.br.x >= s.mr.br.x)
382 REQUIRE_RECTANGLE(across.br.x,s.mr.tl.y, across.br.x,s.mr.br.y, "+");
385 MUST( colno >= MIN_COLUMNS, MI(colno);MR(s.mr);MR(across); );
388 Rect pager= {{ s.mr.br.x, s.mr.br.y - (pagerh-1) },
389 { s.mr.br.x + 1, s.mr.br.y }};
391 debug_rect("pager",__LINE__,pager);
392 ADJUST_BOX(pager, "o",>=,pagerh-2, whole.br.x,MUST, br,x,+1);
393 debug_rect("pager",__LINE__,pager);
395 pager.tl.x= pager.br.x;
396 pager.br.x= pager.br.x + 1;
397 debug_rect("pager",__LINE__,pager);
398 ADJUST_BOX(pager, "o",>=,pagerh-2, whole.br.x,MUST, br,x,+1);
399 debug_rect("pager",__LINE__,pager);
401 ADJUST_BOX(pager, "o",>=,RECT_W(pager)-2, s.mr.tl.y,LIMIT_QUITEQ, tl,y,-1);
402 debug_rect("pager",__LINE__,pager);
404 pager.br.y= pager.tl.y;
405 pager.tl.y= pager.tl.y-1;
406 if (pager.tl.y > s.mr.tl.y)
407 ADJUST_BOX(pager, "+",>,1, s.mr.tl.y,LIMIT_QUITEQ, tl,y,-1);
408 debug_rect("pager",__LINE__,pager);
409 s.pagerheight= pager.br.y - pager.tl.y;
411 #define SET_ONCE(var,val) do{ \
413 if ((var)==-1) (var)= v; \
414 else MUST( (var) == v, MSB(#var);MI((var));MI(v);MR(s.mr); ); \
417 SET_ONCE(columns, colno);
418 SET_ONCE(text_h, s.comminty - 1);
421 *pagestruct_r= mmalloc(sizeof(s));
425 if (max_relevant_y_r)
426 SET_ONCE(*max_relevant_y_r, s.mr.br.y + 10);
428 if (commod_focus_point_r) {
429 *commod_focus_point_r= s.mr.tl;
430 commod_focus_point_r->x += 10;
431 commod_focus_point_r->y += s.comminty/3;
433 if (commod_focuslast_point_r) {
434 *commod_focuslast_point_r= s.mr.br;
435 commod_focuslast_point_r->x -= 10;
436 commod_focuslast_point_r->y -= s.comminty/3;
438 if (commod_page_point_r) {
439 commod_page_point_r->x= (pager.tl.x + pager.br.x) / 2;
440 commod_page_point_r->y= pager.br.y - 1;
443 MUST( text_h <= OCR_MAX_H, MI(text_h) );
446 void check_correct_commodities(void) {
447 Rect search= { { 50,39 }, { 130,59 } };
449 ADJUST_BOX(search,"_",>=,10, cim->h, MUST, tl,y,+1);
450 ADJUST_BOX(search,"_",>=,10, 0, MUST, br,y,-1);
452 debug_rect("commodselr",1, search);
454 static const char *all_small[]= {
455 " ___________________________________ ",
456 " ________X____X__X____________________ ",
457 " ________ X___ X_ X_____XXXXXXXXXXX_____ ",
458 "_________X_X__ X_ X______XXXXXXXXX_______",
459 "________ X X__ X_ X_______XXXXXXX________",
460 "________X_ _X_ X_ X________XXXXX_________",
461 "_______ X__ X_ X_ X_________XXX__________",
462 "_______XXXXXXX X_ X__________X___________",
463 " _____ X X X_ X______________________",
464 " ____X_____ _XX_ X______________________",
465 " __ _______ __ ______________________ ",
467 static const char *all_big[]= {
468 "???_______________________________________???",
469 "??_________________________________________??",
470 "?_________X______X___X______________________?",
471 "_________?X_____?X__?X______XXXXXXXXXXX______",
472 "_________X_X____?X__?X_______XXXXXXXXX_______",
473 "________?X?X____?X__?X________XXXXXXX________",
474 "________X_?_X___?X__?X_________XXXXX_________",
475 "_______?X__?X___?X__?X__________XXX__________",
476 "_______?XXXXX___?X__?X___________X___________",
477 "_______X????_X__?X__?X_______________________",
478 "?_____?X____?X__?X__?X_______________________",
479 "??____X_____?_X_?X__?X_______________________",
480 "???__?_______?__?___?_______________________?",
482 static const char *all_fuzzy[]= {
483 "???___________________________________???",
484 "??_______???___X__X____________________??",
485 "?_______????__?X_?X_____XXXXXXXXXXX_____?",
486 "________?????_?X_?X______XXXXXXXXX_______",
487 "________?????_?X_?X_______XXXXXXX________",
488 "_______??????_?X_?X________XXXXX_________",
489 "_______??_?????X_?X_________XXX__________",
490 "______??XXXXX??X_?X__________X___________",
491 "?_____?????????X_?X______________________",
492 "??___???____???X_?X______________________",
493 "???__??_____???__?______________________?",
496 #define COMMOD_SELECTOR_MATCHES(all) \
497 commod_selector_matches(search, all, \
498 sizeof((all))/sizeof((all)[0]), \
501 if (!(COMMOD_SELECTOR_MATCHES(all_small) ||
502 COMMOD_SELECTOR_MATCHES(all_big) ||
503 COMMOD_SELECTOR_MATCHES(all_fuzzy)))
504 fatal("Commodities selector not set to `All'.");
507 CanonImage *alloc_canon_image(int w, int h) {
508 CanonImage *im= mmalloc(sizeof(CanonImage) + w*h);
511 memset(im->d,'?',w*h);
515 static void file_read_image_ppm(FILE *f) {
517 unsigned char rgb_buf[3];
522 progress("page %d reading ...",npages);
524 pnm_readpaminit(f, &inpam, sizeof(inpam));
525 if (!(inpam.maxval == 255 &&
526 inpam.bytes_per_sample == 1 &&
527 inpam.format == RPPM_FORMAT))
528 fatal("PNM screenshot(s) file must be 8bpp 1 byte-per-sample RGB raw");
530 CANONICALISE_IMAGE(im, inpam.width, inpam.height, ri, {
531 errno=0; int rr= fread_unlocked(&rgb_buf,1,3,f);
533 if (rr!=3) fatal("PNM screenshot(s) file ends unexpectedly");
535 rgb= rgb_buf[0] | (rgb_buf[1] << 8) | (rgb_buf[2] << 16);
538 sysassert(!ferror(screenshot_file));
540 if (!(npages < MAX_PAGES))
541 fatal("Too many images in screenshots file; max is %d.\n", MAX_PAGES);
543 find_structure(im,&pstruct, 0,0,0,0);
544 store_current_page(im,pstruct,ri);
548 void store_current_page(CanonImage *ci, PageStruct *pstruct, RgbImage *rgb) {
550 progress("page %d unantialiasing...",npages);
551 adjust_colours(ci, rgb);
552 progress("page %d storing ...",npages);
553 if (!npages) page0_rgbimage= rgb;
555 page_images[npages]= cim;
556 page_structs[npages]= *pstruct;
557 debugf("STORED page %d pagerheight=%d\n", npages, pstruct->pagerheight);
561 void read_one_screenshot(void) {
562 progress("reading screenshot...");
563 file_read_image_ppm(screenshot_file);
564 progress_log("read screenshot.");
567 void read_screenshots(void) {
570 sysassert(! fstat(fileno(screenshot_file), &stab) );
573 if (S_ISREG(stab.st_mode)) {
574 long pos= ftell(screenshot_file);
575 if (pos == stab.st_size) break;
577 int c= fgetc(screenshot_file);
579 ungetc(c, screenshot_file);
581 file_read_image_ppm(screenshot_file);
583 sysassert(!ferror(screenshot_file));
584 progress_log("read %d screenshots.",npages);
586 check_pager_motion(1,npages);
587 /* When we are reading screenshots, the pages file contains the
588 * `determine where we're to click' page as well as the first
589 * actual data page, which we have to skip.
593 #define FIXPT_SHIFT 15
596 static inline Fixpt int2fixpt(int x) { return x<<FIXPT_SHIFT; }
597 static inline Fixpt dbl2fixpt(double x) { return x * int2fixpt(1); }
598 static inline double fixpt2dbl(Fixpt x) { return x / (1.0*int2fixpt(1)); }
599 static inline Fixpt fixpt_mul(Fixpt a, Fixpt b) {
600 return (a*b + dbl2fixpt(0.5)) / int2fixpt(1);
602 #define MFP(v) fprintf(stderr," %s=%lx=%f", #v,(v),fixpt2dbl((v)))
604 static Fixpt aa_bg_chan[3], aa_scale_chan[3], aa_alpha_mean_max;
605 static Rgb aa_background, aa_foreground;
607 static void find_aa_density_prep(Rgb bg, Rgb fg, int fg_extra) {
609 unsigned char fg_chan[3];
613 aa_alpha_mean_max= fg_extra ? int2fixpt(1)-1 : int2fixpt(1);
615 for (i=0; i<3; i++) {
616 aa_bg_chan[i]= int2fixpt( (aa_background >> (i*8)) & 0xff );
617 fg_chan[i]= aa_foreground >> (i*8);
619 aa_scale_chan[i]= 1.0 / (int2fixpt(fg_chan[i]) + fg_extra - aa_bg_chan[i])
620 * dbl2fixpt(1) * dbl2fixpt(1);
624 static inline Fixpt find_aa_density(const RgbImage *ri, Point p) {
625 Rgb here= ri_rgb(ri, p.x, p.y);
627 if (here==aa_background) return 0;
629 Fixpt alpha[3], alpha_total=0;
631 for (i=0; i<3; i++) {
632 unsigned char here_chan= here >> (i*8);
634 Fixpt alpha_chan= fixpt_mul(int2fixpt(here_chan) - aa_bg_chan[i],
636 alpha[i]= alpha_chan;
637 alpha_total += alpha_chan;
640 Fixpt one_third= dbl2fixpt(1/3.0);
641 Fixpt alpha_mean= fixpt_mul(alpha_total, one_third);
643 Fixpt thresh= dbl2fixpt(1.5/AAMAXVAL);
644 Fixpt alpha_min= alpha_mean - thresh*2;
645 Fixpt alpha_max= alpha_mean + thresh*2;
648 MUST( alpha_min <= alpha[i] && alpha[i] <= alpha_max,
650 MRGB(here);MRGB(aa_background);MRGB(aa_foreground);
651 MFP(aa_alpha_mean_max);MFP(thresh);MFP(alpha_mean);
652 MFP(alpha_min);MI(i);MFP(alpha[i]);MFP(alpha_max) );
654 MUST( -thresh <= alpha_mean && alpha_mean <= aa_alpha_mean_max + thresh,
656 MRGB(here);MRGB(aa_background);MRGB(aa_foreground);
657 MFP(aa_alpha_mean_max);MFP(thresh);
658 MFP(alpha_mean); MFP(alpha[0]);MFP(alpha[1]);MFP(alpha[2]); );
660 if (alpha_mean < 0) alpha_mean= 0;
661 if (alpha_mean > aa_alpha_mean_max) alpha_mean= aa_alpha_mean_max;
666 static void find_commodity(int offset, Rect *rr) {
667 /* rr->tl.x==-1 if offset out of range */
668 rr->tl.y= s.commbasey - offset*s.comminty;
669 rr->br.y= rr->tl.y + s.comminty-2;
670 if (rr->tl.y < s.mr.tl.y || rr->br.y > s.mr.br.y) { rr->tl.x=-1; return; }
675 if (rr->tl.y > s.mr.tl.y)
676 REQUIRE_RECTANGLE(rr->tl.x,rr->tl.y-1, rr->br.x,rr->tl.y-1, "+");
677 if (rr->br.y < s.mr.tl.y)
678 REQUIRE_RECTANGLE(rr->tl.x,rr->br.y+1, rr->br.x,rr->br.y+1, "+");
681 static void compute_table_location(Rect commod, int colno, Rect *cell) {
682 cell->tl.y= commod.tl.y;
683 cell->br.y= commod.br.y;
684 cell->tl.x= !colno ? commod.tl.x : s.colrightx[colno-1]+2;
685 cell->br.x= s.colrightx[colno];
686 debug_rect("cell", colno, *cell);
689 static void ocr_rectangle(Rect r, const OcrCellType ct, FILE *tsv_output) {
690 OcrResultGlyph *results, *res;
692 int w= r.br.x - r.tl.x + 1;
695 for (x=0; x<w; x++) {
697 for (y=0; y<text_h; y++) {
698 Point here= { x+r.tl.x, y+r.tl.y };
699 int pixel= get_p(here);
700 if (pixel==' ') pixel= '0';
701 MUST( pixel >= '0' && pixel <= '0'+AAMAXVAL,
702 MC(pixel);MP(here);MSB(ocr_celltype_name(ct));MR(r); );
703 pixcol_p_add(&cols[x], y, pixel-'0');
708 results= ocr(rd,ct,w,cols);
709 for (res=results; res->s; res++)
710 fputs(res->s,tsv_output);
713 #define FOR_COMMODITY_CELL(ROW_START, CELL, ROW_END) do{ \
715 int tryrect, colno; \
717 for (tryrect= +cim->h; tryrect >= -cim->h; tryrect--) { \
718 find_commodity(tryrect, &rowr); \
721 debug_rect("commod",tryrect, rowr); \
725 for (colno=0; colno<columns; colno++) { \
726 compute_table_location(rowr,colno,&cell); \
735 static void adjust_colours_cell(CanonImage *ci, const RgbImage *ri,
736 int colno, Rect cell) {
738 unsigned char chanbg[3];
739 long bg_count=0, light_count=0, dark_count=0;
743 background= ri_rgb(ri, cell.br.x, cell.br.y);
745 chanbg[i]= background >> (i*8);
748 Rgb herergb= ri_rgb(ri, p.x, p.y);
749 if (herergb==background) {
752 for (i=0; i<3; i++) {
753 unsigned char here= herergb >> (i*8);
754 if (here == chanbg[i]) bg_count++;
755 else if (here < chanbg[i]) dark_count += (chanbg[i] - here)/4 + 1;
756 else if (here > chanbg[i]) light_count += (here - chanbg[i])/4 + 1;
760 long total_count= RECT_W(cell) * RECT_H(cell) * 3;
762 MUST( bg_count > total_count / 2,
763 MR(cell);MIL(total_count);MIL(bg_count);
764 MIL(light_count);MIL(dark_count) );
766 if (bg_count == total_count)
772 if (light_count/16 > dark_count) {
773 foreground= 0xffffffU;
775 } else if (dark_count/16 > light_count) {
779 MUST( !"tell light from dark",
780 MR(cell);MIL(total_count);MIL(bg_count);
781 MIL(light_count);MIL(dark_count);MRGB(background); );
784 debugf("TABLEENTRY col=%d %d,%d..%d,%d bg=%ld light=%ld dark=%ld\n",
785 colno, cell.tl.x,cell.tl.y, cell.br.x,cell.br.y,
786 bg_count, light_count, dark_count);
790 find_aa_density_prep(background, foreground, fg_extra);
793 Fixpt alpha= find_aa_density(ri,p);
795 int here_int= alpha >> (FIXPT_SHIFT - AADEPTH);
796 assert(here_int <= AAMAXVAL);
797 if (!(here_int==0 || here_int==AAMAXVAL)) monochrome=0;
798 ci->d[p.y * ci->w + p.x]= '0' + here_int;
801 debug_rect("cell0M", colno, cell);
803 require_rectangle_r(cell, "0123456789", __LINE__);
806 void adjust_colours(CanonImage *ci, const RgbImage *ri) {
807 if (!(o_mode & mf_analyse))
812 FOR_COMMODITY_CELL({},({
813 adjust_colours_cell(ci,ri,colno,cell);
817 void analyse(FILE *tsv_output) {
820 for (page=0; page<npages; page++) {
824 check_correct_commodities();
827 rd= ocr_init(text_h);
829 progress("Processing page %d...",page);
836 fputs(tab, tsv_output);
840 : &ocr_celltype_number,
844 fputs("\n", tsv_output);
845 sysassert(!ferror(tsv_output));
846 sysassert(!fflush(tsv_output));
849 progress("Commodity table scan complete.");
852 //static Rect islandnamer;
854 DEBUG_DEFINE_SOME_DEBUGF(structcolon,colondebugf)
856 Rect find_sunshine_widget(void) {
859 sunshiner.tl.x= cim->w - 1034 + 885;
860 sunshiner.br.x= cim->w - 1034 + 1020;
864 ADJUST_BOX(sunshiner,"o*",>=,30, 100,MUST, tl,y,-1);
865 ADJUST_BOX(sunshiner,"o*",>=,30, 100,MUST, br,y,+1);
866 debug_rect("sunshiner",0, sunshiner);
868 MUST(sunshiner.br.y - sunshiner.tl.y > 20, MR(sunshiner));
871 ADJUST_BOX(sunshiner,"o",>=,20, (cim->w - 1034 + 700), MUST, tl,x,-1);
872 ADJUST_BOX(sunshiner,"o",>=,20, cim->w, MUST, br,x,+1);
873 debug_rect("sunshiner",1, sunshiner);
877 void find_islandname(void) {
878 const RgbImage *rgbsrc= page0_rgbimage;
881 RgbImage *ri= alloc_rgb_image(rgbsrc->w, rgbsrc->h);
882 memcpy(ri->data, rgbsrc->data, ri->w * ri->h * 3);
884 Rect sunshiner= find_sunshine_widget();
885 char sunshine[MAXIMGIDENT], archisland[MAXIMGIDENT];
889 for (srcp= rgbsrc->data, destp=ri->data,
890 endp= ri->data + ri->w * ri->h;
893 Rgb new= *srcp & 0xf0f0f0;
894 *destp= new | (new>>4);
897 identify_rgbimage(ri, sunshiner, sunshine, "sunshine widget");
899 if (!memcmp(sunshine,"Vessel ",5)) {
902 islandnamer.tl.x= cim->w - 1034 + 885;
903 islandnamer.br.x= cim->w - 1034 + 1020;
904 islandnamer.tl.y= 128;
905 islandnamer.br.y= 156;
907 ADJUST_BOX(islandnamer,"o",>=,5, 0, MUST, tl,y,+1);
908 ADJUST_BOX(islandnamer,"o",>=,5, cim->h, MUST, br,y,-1);
910 ADJUST_BOX(islandnamer,"o",>=,1, 0, MUST, tl,x,+1);
911 ADJUST_BOX(islandnamer,"o",>=,1, cim->w, MUST, br,x,-1);
913 debug_rect("islandnamer",0, islandnamer);
914 // int larger_islandnamebry= islandnamer.tl.y + 25;
915 // MUST(islandnamer.br.y < larger_islandnamebry,
916 // MR(islandnamer);MI(larger_islandnamebry));
917 // islandnamer.br.y = larger_islandnamebry;
918 debug_rect("islandnamer",1, islandnamer);
921 for (x=islandnamer.tl.x; x<=islandnamer.br.x; x++)
922 for (y=islandnamer.tl.y; y<=islandnamer.br.y; y++) {
923 if ((ri_rgb(ri,x,y) & 0xff) < 0x40) {
924 *RI_PIXEL32(ri,x,y)= 0;
928 identify_rgbimage(ri, islandnamer, archisland, "island");
929 } else if (!strcmp(sunshine,"Land - Ahoy!")) {
932 islandnamer.tl.x= (sunshiner.tl.x + sunshiner.br.x) / 2;
933 islandnamer.tl.y= sunshiner.tl.y + 100;
934 islandnamer.br= islandnamer.tl;
935 debug_rect("islandnamer",__LINE__, islandnamer);
937 WALK_UNTIL_MUST(islandnamer.tl,y, -1, sunshiner.br.y, 'H');
938 WALK_UNTIL_MUST(islandnamer.tl,x, -1, 0, 'o');
939 WALK_UNTIL_MUST(islandnamer.br,x, +1, cim->w, 'o');
940 debug_rect("islandnamer",__LINE__, islandnamer);
942 #define RW (RECT_W(islandnamer))
943 #define RH (RECT_H(islandnamer))
945 ADJUST_BOX(islandnamer,"O",>=,RW-4, cim->h, MUST,br,y,+1);
946 debug_rect("islandnamer",__LINE__, islandnamer);
948 islandnamer.br.y += 2;
950 ADJUST_BOX(islandnamer,"*",<,RW, cim->h, MUST,br,y,+1);
951 debug_rect("islandnamer",__LINE__, islandnamer);
953 islandnamer.tl.y= islandnamer.br.y-1;
954 islandnamer.br.y= islandnamer.br.y+1;
955 debug_rect("islandnamer",__LINE__, islandnamer);
957 ADJUST_BOX(islandnamer,"*",>=,RW, cim->h, MUST,br,y,+1);
958 debug_rect("islandnamer",__LINE__, islandnamer);
960 ADJUST_BOX(islandnamer,"*",<, RH, cim->w, MUST,tl,x,+1);
961 debug_rect("islandnamer",__LINE__, islandnamer);
963 MUST( RECT_H(islandnamer) <= 30, MR(islandnamer));
966 int nspaces=1, might_be_colon=0;
967 uint32_t colon_pattern= 0;
970 for (p.x=islandnamer.br.x; p.x>islandnamer.tl.x; p.x--) {
971 colondebugf("structcolon: x=%4d nsp=%2d mbc=%d cp=%08"PRIx32" ",
972 p.x, nspaces, might_be_colon, colon_pattern);
975 int runs[32], nruns=0;
976 runs[0]=0; runs[1]=0;
978 find_aa_density_prep(0xCCCCAA,0x002255,0);
980 for (p.y=islandnamer.tl.y; p.y<=islandnamer.br.y; p.y++) {
982 Fixpt alpha= find_aa_density(ri,p);
983 if (alpha >= dbl2fixpt(0.49)) {
994 colondebugf(" pat=%08"PRIx32" nruns=%d runs[]={%d,%d..} ",
995 pattern, nruns, runs[0],runs[1]);
999 /* omg it _is_ a colon */
1004 if (nruns==2 && runs[1]==runs[0]) {
1006 if (pattern==colon_pattern)
1007 goto ok_might_be_colon;
1008 } else if (nspaces>=2) {
1009 colon_pattern= pattern;
1011 goto ok_might_be_colon;
1013 } else if (nruns==1 && runs[0]==1 && might_be_colon) {
1020 colondebugf(" nsp=%2d mbc=%d\n", nspaces, might_be_colon);
1022 MUST(!"colon found", MP(p);MR(islandnamer) );
1025 colondebugf(" found\n");
1026 islandnamer.br.x= p.x;
1028 identify_rgbimage(ri, islandnamer, archisland, "island");
1031 MUST(!"sunshine shows ship or ahoy", MS(sunshine) );
1035 char *delim= strstr(archisland," - ");
1037 archipelago= masprintf("%.*s", (int)(delim-archisland), archisland);
1038 island= masprintf("%s", delim+3);
1042 void check_pager_motion(int first, int stop) {
1043 /* We check that the pager moved by an appropriate amount.
1044 * The last gap can be smaller but not bigger.
1046 int count= stop-first;
1048 #define PH(p) (page_structs[(p)].pagerheight)
1050 debugf("CHECK_PAGER_MOTION %d..%d count=%d\n", first,stop,count);
1052 if (count <= 1) return; /* only one page */
1054 double firstheight= PH(first);
1055 double max= count>2 ? firstheight / (count-2) : 1e6;
1056 double min= firstheight / (count-1);
1061 debugf("CHECK_PAGER_MOTION min=%g max=%g\n", min,max);
1064 int skips=0, firstskip=1;
1065 int stops=0, firststop=1;
1067 #define REPORT(skipstop,msg) do{ \
1069 if (first##skipstop<0) first##skipstop= page; \
1070 if (skipstop##s<5) \
1071 fprintf(stderr,msg " (page %d)\n",page); \
1075 for (page=first+1; page<stop; page++) {
1076 int gap= PH(page-1) - PH(page);
1077 debugf("CHECK_PAGER_MOTION page=%2d gap=%2d\n", page, gap);
1079 REPORT(skip, "scrollbar motion probable page skip detected!");
1080 if (gap<min && page<stop-1)
1081 REPORT(stop, "scrollbar short motion gives lie to our ideas!");
1083 MUST(!skips && !stops,
1084 MI(skips);MI(firstskip);MF(max);MI(PH(firstskip));MI(PH(firstskip-1));
1085 MI(stops);MI(firststop);MF(min);MI(PH(firststop));MI(PH(firststop-1));
1086 MF(firstheight);MI(PH(stop-2));MI(PH(stop-1));
1089 "Your YPP client seems to be paging irregularly. Perhaps your computer\n"
1090 "is too slow or overloaded or perhaps you are messing with the mouse ?\n"