static inline char get_p(Point p) { return get(p.x,p.y); }
+#define START_MAIN {200,200}
+#define INTERESTING_COLUMNS 6
+#define MAX_COLUMNS 7
+
+static Rect mainr = { START_MAIN,START_MAIN };
+static int commbasey, comminty;
+static int colrightx[INTERESTING_COLUMNS];
+
+
static const CanonColourInfo canoncolourinfos[]= {
{ 0x475A5E, '*' }, /* edge */
{ 0x2C5F7A, '*' }, /* edge just under box heading shadow */
{ 0,0 }
};
-#define START_MAIN {200,200}
-
-static void require_rectangle(int tlx, int tly, int brx, int bry, char c) {
+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++)
- eassert(get(x,y) == c);
+ for (y=tly; y<=bry; y++) {
+ int c= get(x,y);
+ assert(strchr(ok,c));
+ }
}
-static void require_rectangle_r(Rect rr, char c) {
- require_rectangle(rr.tl.x,rr.tl.y, rr.br.x,rr.br.y, c);
+static void require_rectangle_r(Rect rr, const char *ok) {
+ require_rectangle(rr.tl.x,rr.tl.y, rr.br.x,rr.br.y, ok);
}
static void debug_rect(const char *what, int whati, Rect rr) {
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 %4d ",y,y-rr.tl.y);
+ fprintf(debug, "%4d%*s|", y, rr.tl.x,"");
r= fwrite(image + y*width + rr.tl.x, 1, w, debug);
eassert(r==w);
fputc('|',debug);
debug_flush();
}
-static void find_main_rectangle(void) {
- Rect whole = { {0,0}, {width-1,height-1} };
- Rect mainr = { START_MAIN,START_MAIN };
-
-#define WALK_UNTIL(point,coord,increm,stop,edge) \
+#define WALK_UNTIL(point,coord,increm,last,edge) \
for (;;) { \
+ if ((point).coord == (last)+(increm)) break; \
if (get_p((point)) == (edge)) { (point).coord -= (increm); break; } \
- eassert((point).coord != (stop)); \
(point).coord += (increm); \
}
- WALK_UNTIL(mainr.tl, x,-1, whole.tl.x, '*');
- WALK_UNTIL(mainr.tl, y,-1, whole.tl.y, '*');
- WALK_UNTIL(mainr.br, x,+1, whole.br.x, '*');
- WALK_UNTIL(mainr.br, y,+1, whole.br.y, '*');
+#define WALK_UNTIL_MUST(point,coord,increm,last,edge) \
+ do { \
+ WALK_UNTIL(point,coord,increm,last,edge); \
+ eassert((point).coord != (last)+(increm)); \
+ } while(0)
+
+static void find_structure(void) {
+ Rect whole = { {0,0}, {width-1,height-1} };
+
+ WALK_UNTIL_MUST(mainr.tl, x,-1, whole.tl.x, '*');
+ WALK_UNTIL_MUST(mainr.tl, y,-1, whole.tl.y, '*');
+ WALK_UNTIL_MUST(mainr.br, x,+1, whole.br.x, '*');
+ WALK_UNTIL_MUST(mainr.br, y,+1, whole.br.y, '*');
- require_rectangle(mainr.tl.x-1, mainr.tl.y, mainr.tl.x-1, mainr.br.y, '*');
- require_rectangle(mainr.br.x+1, mainr.tl.y, mainr.br.x+1, mainr.br.y, '*');
- require_rectangle(mainr.tl.x, mainr.tl.y-1, mainr.br.x, mainr.tl.y-1, '*');
- require_rectangle(mainr.tl.x, mainr.br.y+1, mainr.br.x, mainr.br.y+1, '*');
+ require_rectangle(mainr.tl.x-1, mainr.tl.y, mainr.tl.x-1, mainr.br.y, "*");
+ require_rectangle(mainr.br.x+1, mainr.tl.y, mainr.br.x+1, mainr.br.y, "*");
+ require_rectangle(mainr.tl.x, mainr.tl.y-1, mainr.br.x, mainr.tl.y-1, "*");
+ require_rectangle(mainr.tl.x, mainr.br.y+1, mainr.br.x, mainr.br.y+1, "*");
#define CHECK_STRIP_BORDER(tlbr,xy,increm) \
do { \
csb_r= mainr; \
csb_r.tl.xy= csb_p.xy; \
csb_r.br.xy= csb_p.xy; \
- require_rectangle_r(csb_r, '+'); \
+ require_rectangle_r(csb_r, "+"); \
mainr.tlbr.xy += increm; \
} \
} while(0)
CHECK_STRIP_BORDER(br,y,-1);
debug_rect("mainr",1, mainr);
+
+ Point up = START_MAIN;
+ WALK_UNTIL_MUST(up, y,-1, mainr.tl.y, '+');
+
+ Point down = START_MAIN;
+ down.y++;
+ WALK_UNTIL_MUST(down, y,+1, mainr.br.y, '+');
+
+ int xscaleunit, y,x;
+ for (y=0, xscaleunit=1; y<4; y++, xscaleunit*=10) {
+ fprintf(debug," ");
+ for (x=0; x<=width; x++) {
+ if (x % xscaleunit) fputc(' ',debug);
+ else fprintf(debug,"%d",(x / xscaleunit)%10);
+ }
+ fputc('\n',debug);
+ }
+
+ commbasey= up.y;
+ comminty= down.y - up.y + 2;
+ fprintf(debug, "up.y=%d down.y=%d commbasey=%d comminty=%d\n",
+ up.y,down.y, commbasey,comminty);
+
+ Point across= { mainr.tl.x, commbasey };
+ int colno=0;
+ for (;;) {
+ eassert(get_p(across) != '+');
+ WALK_UNTIL(across, x,+1, mainr.br.x, '+');
+ eassert(colno < MAX_COLUMNS);
+ int colrx= across.x;
+ if (colrx > mainr.br.x) colrx= mainr.br.x;
+ if (colno < INTERESTING_COLUMNS) {
+ colrightx[colno]= colrx;
+ fprintf(debug,"colrightx[%d]= %d\n",colno,colrx);
+ } else {
+ fprintf(debug,"extra colr %d %d\n",colno,colrx);
+ }
+
+ colno++;
+
+ if (across.x >= mainr.br.x-1)
+ break;
+
+ across.x++;
+ require_rectangle(across.x,mainr.tl.y, across.x,mainr.br.y, "+");
+ across.x++;
+ }
+
}
+static void find_commodity(int offset, Rect *rr) {
+ /* rr->tl.x==-1 if offset out of range */
+ 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; }
+ 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 load_image_and_canonify(void) {
struct pam inpam;
unsigned char rgb[3];
int main(void) {
load_image_and_canonify();
- find_main_rectangle();
- /*
- repeatedly_find_top_thing();
- */
+ find_structure();
+
+ Rect thisr;
+ int tryrect;
+ for (tryrect= +height; tryrect >= -height; tryrect--) {
+ find_commodity(tryrect, &thisr);
+ if (thisr.tl.x >= 0)
+ debug_rect("commod",tryrect, thisr);
+ }
return 0;
}