/*
- */
+ * Parsing of the structure of the YPP client's displayed image
+ */
+/*
+ * This is part of ypp-sc-tools, a set of third-party tools for assisting
+ * players of Yohoho Puzzle Pirates.
+ *
+ * Copyright (C) 2009 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ * Yohoho and Puzzle Pirates are probably trademarks of Three Rings and
+ * are used without permission. This program is not endorsed or
+ * sponsored by Three Rings.
+ */
#include "structure.h"
-
-typedef struct {
- int x, y;
-} Point;
-
-typedef struct { /* both inclusive */
- Point tl;
- Point br;
-} Rect;
-
static CanonImage *cim;
static inline char get(int x, int y) { return cim->d[y * cim->w + x]; }
{ 0,0 }
};
+
+static void mustfail1(const char *file, int line, const char *what) {
+ fprintf(stderr,
+ "\n\n"
+ "Unable to figure out contents YPP client display.\n"
+ " Check that your client is logged in has the correct display.\n"
+ " If that isn't the problem, please report this as a fault.\n\n"
+ "Technical details:"
+ " %s:%d: requirement failed: %s\n",
+ file, line, what);
+}
+static void mustfail2(void) NORET;
+static void mustfail2(void) {
+ fprintf(stderr, "\n\nGiving up.\n");
+ exit(8);
+}
+
+#define MUST(x, ifnot) do{ \
+ if (!(x)) { \
+ mustfail1(__FILE__,__LINE__,#x); \
+ ifnot; \
+ mustfail2(); \
+ } \
+ }while(0)
+
+#define MP(v) fprintf(stderr," %s=%d,%d",#v,(v).x,(v).y)
+#define MI(v) fprintf(stderr," %s=%d", #v,(v))
+#define MC(v) fprintf(stderr," %s='%c'", #v,(v))
+#define MS(v) fprintf(stderr," %s=\"%s\"", #v,(v))
+#define MSB(v) fprintf(stderr," %s", (v))
+#define MR(v) fprintf(stderr," %s=%d,%d..%d,%d",\
+ #v,(v).tl.x,(v).tl.y,(v).br.x,(v).br.y)
+
+
static void require_rectangle(int tlx, int tly, int brx, int bry,
const char *ok) {
- int x,y;
- for (x=tlx; x<=brx; x++)
- for (y=tly; y<=bry; y++) {
- int c= get(x,y);
- assert(strchr(ok,c));
+ Point p;
+ for (p.x=tlx; p.x<=brx; p.x++)
+ for (p.y=tly; p.y<=bry; p.y++) {
+ int c= get_p(p);
+ MUST( strchr(ok,c), ({
+ Rect rm={{tlx,tly},{brx,bry}};
+ MR(rm);MP(p);MS(ok);
+ }));
}
}
static void require_rectangle_r(Rect rr, const char *ok) {
static void debug_rect(const char *what, int whati, Rect rr) {
if (!DEBUGP(rect)) return;
- int y,r,w;
+ int y,w;
fprintf(debug, "%s %d: %d,%d..%d,%d:\n", what, whati,
rr.tl.x,rr.tl.y, rr.br.x,rr.br.y);
w= rr.br.x - rr.tl.x + 1;
for (y=rr.tl.y; y<=rr.br.y; y++) {
fprintf(debug, "%4d%*s|", y, rr.tl.x,"");
- r= fwrite(cim->d + y*cim->w + rr.tl.x, 1, w, debug);
- eassert(r==w);
+ fwrite(cim->d + y*cim->w + rr.tl.x, 1, w, debug);
fputc('|',debug);
fputc('\n',debug);
}
#define WALK_UNTIL_MUST(point,coord,increm,last,edge) \
do { \
WALK_UNTIL(point,coord,increm,last,edge); \
- eassert((point).coord != (last)+(increm)); \
- } while(0)
+ MUST( (point).coord != (last)+(increm), \
+ MP(point); MI(increm); MI(last); MC(edge); \
+ ); \
+ }while(0)
void find_structure(CanonImage *im) {
cim= im;
Point across= { mainr.tl.x, commbasey };
int colno=0;
for (;;) {
- eassert(get_p(across) != '+');
+ MUST( get_p(across) != '+', MI(colno);MP(across);MR(mainr);MI(commbasey) );
WALK_UNTIL(across, x,+1, mainr.br.x, '+');
- eassert(colno < MAX_COLUMNS);
+ MUST( colno < MAX_COLUMNS, MP(across);MR(mainr);MI(commbasey); );
int colrx= across.x;
if (colrx > mainr.br.x) colrx= mainr.br.x;
if (colno < INTERESTING_COLUMNS)
require_rectangle(across.x,mainr.tl.y, across.x,mainr.br.y, "+");
across.x++;
}
- eassert(colno >= MIN_COLUMNS);
+ MUST( colno >= MIN_COLUMNS, MI(colno);MR(mainr);MP(across); );
-#define SET_ONCE(var,val) do{ \
- int v= (val); \
- if ((var)==-1) (var)= v; \
- else eassert((var) == v); \
+#define SET_ONCE(var,val) do{ \
+ int v= (val); \
+ if ((var)==-1) (var)= v; \
+ else MUST( (var) == v, MSB(#var);MI((var));MI(v);MR(mainr); ); \
}while(0)
SET_ONCE(columns, colno);
}
CanonImage *alloc_canon_image(int w, int h) {
- CanonImage *im= malloc(sizeof(CanonImage) + w*h);
- eassert(im);
+ CanonImage *im= mmalloc(sizeof(CanonImage) + w*h);
im->w= w;
im->h= h;
memset(im->d,'?',w*h);
return im;
}
-CanonImage *file_read_image_ppm(FILE *f) {
+static void file_read_image_ppm(FILE *f) {
struct pam inpam;
unsigned char rgb_buf[3];
CanonImage *im;
pnm_readpaminit(f, &inpam, sizeof(inpam));
- eassert(inpam.maxval == 255);
- eassert(inpam.bytes_per_sample == 1);
+ if (!(inpam.maxval == 255 &&
+ inpam.bytes_per_sample == 1 &&
+ inpam.format == RPPM_FORMAT))
+ fatal("PNM screenshot(s) file must be 8bpp 1 byte per sample RGB");
CANONICALISE_IMAGE(im, inpam.width, inpam.height, {
- int r= fread(&rgb_buf,1,3,f); eassert(r==3);
+ int r= fread(&rgb_buf,1,3,f);
+ sysassert(!ferror(f));
+ if (r!=3) fatal("PNM screenshot(s) file ends unexpectedly");
rgb=
((unsigned long)rgb_buf[0]<<16) |
(rgb_buf[2]);
});
- return im;
+ sysassert(!ferror(screenshots_file));
+
+ if (!(npages < MAX_PAGES))
+ fatal("Too many images in screenshots file; max is %d.\n", MAX_PAGES);
+
+ page_images[npages++]= im;
}
-void read_screenshots(void) {
-// int c;
-// while ((c= fgetc(screenshots_file) != EOF)) {
-// ungetc(c, screenshots_file);
+void read_one_screenshot(void) {
+ progress("reading screenshot...");
+ file_read_image_ppm(screenshots_file);
+ progress_log("read screenshot.");
+}
-// eassert(npages < MAX_PAGES);
- page_images[npages++]= file_read_image_ppm(screenshots_file);
-// }
+void read_screenshots(void) {
+ struct stat stab;
+
+ sysassert(! fstat(fileno(screenshots_file), &stab) );
+
+ for (;;) {
+ if (S_ISREG(stab.st_mode)) {
+ long pos= ftell(screenshots_file);
+ if (pos == stab.st_size) break;
+ } else {
+ int c= fgetc(screenshots_file);
+ if (c==EOF) break;
+ ungetc(c, screenshots_file);
+ }
+ progress("reading screenshot %d...",npages);
+ file_read_image_ppm(screenshots_file);
+ }
+ sysassert(!ferror(screenshots_file));
+ progress_log("read %d screenshots.",npages);
}
static void find_commodity(int offset, Rect *rr) {
rr->tl.y= commbasey - offset*comminty;
rr->br.y= rr->tl.y + comminty-2;
if (rr->tl.y < mainr.tl.y || rr->br.y > mainr.br.y) { rr->tl.x=-1; return; }
+
+ rr->tl.x= mainr.tl.x;
+ rr->br.x= mainr.br.x;
+
if (rr->tl.y > mainr.tl.y)
require_rectangle(rr->tl.x,rr->tl.y-1, rr->br.x,rr->tl.y-1, "+");
if (rr->br.y < mainr.tl.y)
require_rectangle(rr->tl.x,rr->br.y+1, rr->br.x,rr->br.y+1, "+");
-
- rr->tl.x= mainr.tl.x;
- rr->br.x= mainr.br.x;
}
static void find_table_entry(Rect commod, int colno, Rect *cellr) {
for (x=0; x<w; x++) {
Pixcol cx, rv;
for (y=0, cx=0, rv=1; y<text_h; y++, rv<<=1) {
- switch (get(x+r.tl.x, y+r.tl.y)) {
+ Point here= { x+r.tl.x, y+r.tl.y };
+ int pixel= get_p(here);
+ switch (pixel) {
case ' ': break;
case 'o': cx |= rv; break;
- default: eassert(!"wrong pixel");
+ default:
+ MUST(!"wrong pixel",
+ MC(pixel);MP(here);MSB(ocr_celltype_name(ct));MR(r); );
}
}
cols[x]= cx;
tab= "\t";
}
fputs("\n", stdout);
- eassert(!ferror(stdout));
- eassert(!fflush(stdout));
+ sysassert(!ferror(stdout));
+ sysassert(!fflush(stdout));
}
}
}
~yarrgweb / ypp-sc-tools.db-live.git / blobdiff