chiark / gitweb /
Cope with AA island name on land
[ypp-sc-tools.db-test.git] / pctb / structure.c
index 1f3c743319de029d342bbdbaa9bce1ec920047cb..cb79f9996606b8209f0913267d0a3aed250a7370 100644 (file)
@@ -27,7 +27,7 @@
 
 #include "structure.h"
 
-static const CanonImage *cim;
+static CanonImage *cim;
 
 static inline char get(int x, int y) { return cim->d[y * cim->w + x]; }
 static inline char get_p(Point p) { return get(p.x,p.y); }
@@ -96,7 +96,6 @@ static void mustfail1(const char *file, int line, const char *what) {
  "Unable to figure out contents of YPP client display.\n"
  "Please check the following:\n"
  "   * YPP client is showing commodity listing screen\n"
- "   * YPP client has antialiased text turned off (Ye / Options / General)\n"
  "   * YPP client window is on top (we try to raise it but your window\n"
  "      manager might have prevented that from succeeding)\n"
  "   * Your X display is 24bpp (NB some VNC servers use 16bpp by default)\n"
@@ -123,8 +122,11 @@ static void mustfail2(void) {
 
 #define MP(v) fprintf(stderr," %s=%d,%d",#v,(v).x,(v).y)
 #define MI(v) fprintf(stderr," %s=%d",   #v,(v))
+#define MIL(v) fprintf(stderr," %s=%ld", #v,(v))
+#define MRGB(v) fprintf(stderr," %s=%06lx", #v,(v))
 #define MC(v) fprintf(stderr," %s='%c'", #v,(v))
 #define MS(v) fprintf(stderr," %s=\"%s\"", #v,(v))
+#define MF(v) fprintf(stderr," %s=\"%f\"", #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)
@@ -133,7 +135,7 @@ static void mustfail2(void) {
 #define REQUIRE_RECTANGLE(tlx,tly,brx,bry,ok) \
  require_rectangle(tlx, tly, brx, bry, ok, __LINE__);
 
-#define FOR_P_RECT(p,rect)                             \
+#define FOR_P_RECT(p,rr)                               \
   for ((p).x=(rr).tl.x; (p).x<=(rr).br.x; (p).x++)     \
     for ((p).y=(rr).tl.y; (p).y<=(rr).br.y; (p).y++)
 
@@ -208,23 +210,23 @@ static int commod_selector_matches(Rect search, const char *const *all,
          );                                            \
   }while(0)
 
-#define ADJUST_BOX(search,insidechrs,want, lim,LIMIT_MUST, TLBR,XY,increm) \
-  for (;;) {                                                              \
-    LIMIT_MUST( (search).tl.XY != (search).br.XY &&                       \
-               (search).tl.XY != (lim),                                   \
-               MR((search));MSB(#TLBR);MSB(#XY) );                        \
-    int got=0;                                                            \
-    Point p=(search).tl;                                                  \
-    for (p.XY=(search).TLBR.XY;                                                   \
-        p.OTHERCOORD_##XY <= (search).br.OTHERCOORD_##XY;                 \
-        p.OTHERCOORD_##XY++)                                              \
-      got += !!strchr(insidechrs, get_p(p));                              \
-    if (got >= (want))                                                    \
-      break;                                                              \
-    (search).TLBR.XY += increm;                                                   \
+#define ADJUST_BOX(search,insidechrs,OP,want, lim,LIMIT_MUST, TLBR,XY,increm) \
+  for (;;) {                                                                 \
+    LIMIT_MUST( (search).tl.XY != (search).br.XY &&                          \
+               (search).tl.XY != (lim),                                      \
+               MR((search));MSB(#TLBR);MSB(#XY) );                           \
+    int got=0;                                                               \
+    Point p=(search).tl;                                                     \
+    for (p.XY=(search).TLBR.XY;                                                      \
+        p.OTHERCOORD_##XY <= (search).br.OTHERCOORD_##XY;                    \
+        p.OTHERCOORD_##XY++)                                                 \
+      got += !!strchr(insidechrs, get_p(p));                                 \
+    if ((got) OP (want))                                                     \
+      break;                                                                 \
+    (search).TLBR.XY += increm;                                                      \
   }
 
-void find_structure(const CanonImage *im, int *max_relevant_y_r) {
+void find_structure(CanonImage *im, int *max_relevant_y_r) {
   cim= im;
   
   Rect whole = { {0,0}, {cim->w-1,cim->h-1} };
@@ -317,13 +319,15 @@ void find_structure(const CanonImage *im, int *max_relevant_y_r) {
   SET_ONCE(text_h, comminty - 1);
   if (max_relevant_y_r)
     SET_ONCE(*max_relevant_y_r, mainr.br.y + 10);
+
+  MUST( text_h <= OCR_MAX_H, MI(text_h) );
 }                  
 
 void check_correct_commodities(void) {
   Rect search= { { 50,39 }, { 130,59 } };
 
-  ADJUST_BOX(search,"_",10, cim->h, MUST, tl,y,+1);
-  ADJUST_BOX(search,"_",10, 0,      MUST, br,y,-1);
+  ADJUST_BOX(search,"_",>=,10, cim->h, MUST, tl,y,+1);
+  ADJUST_BOX(search,"_",>=,10, 0,      MUST, br,y,-1);
 
   debug_rect("commodselr",1, search);
 
@@ -383,7 +387,7 @@ static void file_read_image_ppm(FILE *f) {
   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");
+    fatal("PNM screenshot(s) file must be 8bpp 1 byte-per-sample RGB raw");
 
   CANONICALISE_IMAGE(im, inpam.width, inpam.height, {
     int r= fread(&rgb_buf,1,3,f);
@@ -447,13 +451,85 @@ static void find_commodity(int offset, Rect *rr) {
     REQUIRE_RECTANGLE(rr->tl.x,rr->br.y+1, rr->br.x,rr->br.y+1, "+");
 }
 
-static void find_table_entry(Rect commod, int colno, Rect *cellr) {
-  cellr->tl.y= commod.tl.y;
-  cellr->br.y= commod.br.y;
-  cellr->tl.x= !colno ? commod.tl.x : colrightx[colno-1]+2;
-  cellr->br.x=                        colrightx[colno];
-  debug_rect("cell", colno, *cellr);
-  require_rectangle_r(*cellr, " o", __LINE__);
+static void find_table_entry(Rect commod, int colno, Rect *cell) {
+  cell->tl.y= commod.tl.y;
+  cell->br.y= commod.br.y;
+  cell->tl.x= !colno ? commod.tl.x : colrightx[colno-1]+2;
+  cell->br.x=                        colrightx[colno];
+  debug_rect("cell", colno, *cell);
+
+  const RgbImage *ri= cim->rgb;
+  
+  Rgb background= ri_rgb(ri, cell->br.x, cell->br.y);
+  long bg_count=0, light_count=0, dark_count=0;
+  Point p;
+  FOR_P_RECT(p,*cell) {
+    Rgb here= ri_rgb(ri, p.x, p.y);
+    if (here == background) bg_count++;
+    else if (here < background) dark_count++;
+    else if (here > background) light_count++;
+  }
+  long total_count= RECT_W(*cell) * RECT_H(*cell);
+  MUST( bg_count > total_count / 2,
+       MR(*cell);MIL(total_count);MIL(bg_count);
+       MIL(light_count);MIL(dark_count) );
+  if (bg_count == total_count)
+    return;
+
+  MUST( !!dark_count != !!light_count,
+       MR(*cell);MIL(total_count);MIL(bg_count);
+       MIL(light_count);MIL(dark_count) );
+
+  debugf("TABLEENTRY col=%d %d,%d..%d,%d bg=%ld light=%ld dark=%ld\n",
+        colno, cell->tl.x,cell->tl.y, cell->br.x,cell->br.y,
+        bg_count, light_count, dark_count);
+  
+  Rgb foreground;
+  double fg_extra;
+  if (light_count) {
+    foreground= 0xffffffU;
+    fg_extra= +1;
+  } else {
+    foreground= 0;
+    fg_extra= -1;
+  }
+  int monochrome= 1;
+
+  FOR_P_RECT(p,*cell) {
+    Rgb here= ri_rgb(ri, p.x, p.y);
+    double alpha[3], alpha_mean=0;
+    int i;
+    for (i=0; i<3; i++) {
+      unsigned char here_chan= here       >> (i*8);
+      unsigned char bg_chan=   background >> (i*8);
+      unsigned char fg_chan=   foreground >> (i*8);
+      double alpha_chan=
+       ((double)here_chan    - (double)bg_chan) /
+       ((fg_chan + fg_extra) - (double)bg_chan);
+      alpha[i]= alpha_chan;
+      alpha_mean += alpha_chan * (1/3.0);
+    }
+
+    double thresh= 1.5/AAMAXVAL;
+    double alpha_min= alpha_mean - thresh;
+    double alpha_max= alpha_mean + thresh;
+    for (i=0; i<3; i++)
+      MUST( alpha_min <= alpha[i] && alpha[i] <= alpha_max,
+           MI(i);MRGB(here);MRGB(background);MRGB(foreground);
+           MF(alpha_min);MF(alpha[i]);MF(alpha_max) );
+
+    MUST( 0 <= alpha_mean && alpha_mean < 0.999,
+         MRGB(here);MRGB(background);MRGB(foreground);
+         MF(alpha_mean); MF(alpha[0]);MF(alpha[1]);MF(alpha[2]); );
+    int here_int= floor((AAMAXVAL+1)*alpha_mean);
+    assert(here_int <= AAMAXVAL);
+    if (!(here_int==0 || here_int==AAMAXVAL)) monochrome=0;
+    cim->d[p.y * cim->w + p.x]= '0' + here_int;
+  }
+
+  debug_rect("cell0M", colno, *cell);
+
+  require_rectangle_r(*cell, "0123456789", __LINE__);
 }
 
 static void ocr_rectangle(Rect r, const OcrCellType ct, FILE *tsv_output) {
@@ -463,21 +539,17 @@ static void ocr_rectangle(Rect r, const OcrCellType ct, FILE *tsv_output) {
   Pixcol cols[w+1];
   int x,y;
   for (x=0; x<w; x++) {
-    Pixcol cx, rv;
-    for (y=0, cx=0, rv=1; y<text_h; y++, rv<<=1) {
+    FILLZERO(cols[x]);
+    for (y=0; y<text_h; 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:
-       MUST(!"wrong pixel",
-            MC(pixel);MP(here);MSB(ocr_celltype_name(ct));MR(r); );
-      }
+      if (pixel==' ') pixel= '0';
+      MUST( pixel >= '0' && pixel <= '0'+AAMAXVAL,
+           MC(pixel);MP(here);MSB(ocr_celltype_name(ct));MR(r); );
+      pixcol_p_add(&cols[x], y, pixel-'0');
     }
-    cols[x]= cx;
   }
-  cols[w]= 0;
+  FILLZERO(cols[w]);
 
   results= ocr(rd,ct,w,cols);
   for (res=results; res->s; res++)
@@ -536,15 +608,15 @@ Rect find_sunshine_widget(void) {
   sunshiner.tl.y= 227;
   sunshiner.br.y= 228;
 
-  ADJUST_BOX(sunshiner,"o*",30, 100,MUST, tl,y,-1);
-  ADJUST_BOX(sunshiner,"o*",30, 100,MUST, br,y,+1);
+  ADJUST_BOX(sunshiner,"o*",>=,30, 100,MUST, tl,y,-1);
+  ADJUST_BOX(sunshiner,"o*",>=,30, 100,MUST, br,y,+1);
   debug_rect("sunshiner",0, sunshiner);
 
   MUST(sunshiner.br.y - sunshiner.tl.y > 20, MR(sunshiner));
   sunshiner.br.y--;
 
-  ADJUST_BOX(sunshiner,"o",20, (cim->w - 1034 + 700), MUST, tl,x,-1);
-  ADJUST_BOX(sunshiner,"o",20,  cim->w,               MUST, br,x,+1);
+  ADJUST_BOX(sunshiner,"o",>=,20, (cim->w - 1034 + 700), MUST, tl,x,-1);
+  ADJUST_BOX(sunshiner,"o",>=,20,  cim->w,               MUST, br,x,+1);
   debug_rect("sunshiner",1, sunshiner);
   return sunshiner;
 }
@@ -575,11 +647,11 @@ void find_islandname(RgbImage *ri) {
     islandnamer.tl.y=                 128;
     islandnamer.br.y=                 156;
 
-    ADJUST_BOX(islandnamer,"o",5, 0,      MUST, tl,y,+1);
-    ADJUST_BOX(islandnamer,"o",5, cim->h, MUST, br,y,-1);
+    ADJUST_BOX(islandnamer,"o",>=,5, 0,      MUST, tl,y,+1);
+    ADJUST_BOX(islandnamer,"o",>=,5, cim->h, MUST, br,y,-1);
 
-    ADJUST_BOX(islandnamer,"o",1, 0,      MUST, tl,x,+1);
-    ADJUST_BOX(islandnamer,"o",1, cim->w, MUST, br,x,-1);
+    ADJUST_BOX(islandnamer,"o",>=,1, 0,      MUST, tl,x,+1);
+    ADJUST_BOX(islandnamer,"o",>=,1, cim->w, MUST, br,x,-1);
 
     debug_rect("islandnamer",0, islandnamer);
 //    int larger_islandnamebry= islandnamer.tl.y + 25;
@@ -599,7 +671,7 @@ void find_islandname(RgbImage *ri) {
       }
 
     identify_rgbimage(ri, islandnamer, archisland, "island");
-  } else {
+  } else if (!strcmp(sunshine,"Land - Ahoy!")) {
     Rect islandnamer;
 
     islandnamer.tl.x= (sunshiner.tl.x + sunshiner.br.x) / 2;
@@ -612,23 +684,28 @@ void find_islandname(RgbImage *ri) {
     WALK_UNTIL_MUST(islandnamer.br,x, +1, cim->w,         'o');
     debug_rect("islandnamer",__LINE__, islandnamer);
 
-    require_rectangle_r(islandnamer, "O*", __LINE__);
+#define RW (RECT_W(islandnamer))
+#define RH (RECT_H(islandnamer))
 
-    int rw= RECT_W(islandnamer);
-    ADJUST_BOX(islandnamer,"O",rw-4, cim->h, MUST,br,y,+1);
+    ADJUST_BOX(islandnamer,"O",>=,RW-4, cim->h, MUST,br,y,+1);
     debug_rect("islandnamer",__LINE__, islandnamer);
 
     islandnamer.br.y += 2;
-    ADJUST_BOX(islandnamer,"O",1,    cim->h, MUST,br,y,+1);
+
+    ADJUST_BOX(islandnamer,"*",<,RW, cim->h, MUST,br,y,+1);
     debug_rect("islandnamer",__LINE__, islandnamer);
 
     islandnamer.tl.y= islandnamer.br.y-1;
     islandnamer.br.y= islandnamer.br.y+1;
-    ADJUST_BOX(islandnamer,"*",rw,   cim->h, MUST,br,y,+1);
-    ADJUST_BOX(islandnamer,"O",1,    cim->w, MUST,tl,x,+1);
     debug_rect("islandnamer",__LINE__, islandnamer);
 
-    MUST( RECT_H(islandnamer) <= 31, MR(islandnamer));
+    ADJUST_BOX(islandnamer,"*",>=,RW, cim->h, MUST,br,y,+1);
+    debug_rect("islandnamer",__LINE__, islandnamer);
+
+    ADJUST_BOX(islandnamer,"*",<, RH, cim->w, MUST,tl,x,+1);
+    debug_rect("islandnamer",__LINE__, islandnamer);
+
+    MUST( RECT_H(islandnamer) <= 30, MR(islandnamer));
 
     Point p;
     int nspaces=1, might_be_colon=0;
@@ -646,9 +723,9 @@ void find_islandname(RgbImage *ri) {
       for (p.y=islandnamer.tl.y; p.y<=islandnamer.br.y; p.y++) {
        pattern <<= 1;
        switch (get_p(p)) {
-       case 'O': runs[nruns]++;                         pattern |= 1u; break;
        case '*': if (runs[nruns]) { nruns++; runs[nruns]=0; }          break;
-       default: abort();
+       case 'O': runs[nruns]++;              pattern |= 1u;            break;
+       default:                              pattern |= 1UL<<31;       break;
        }
       }
 
@@ -662,7 +739,7 @@ void find_islandname(RgbImage *ri) {
        nspaces++;
        might_be_colon=0;
       } else {
-       if (nruns==2 && runs[1]==runs[0]) {
+       if (!(pattern & 1UL<<31) && nruns==2 && runs[1]==runs[0]) {
          if (!nspaces) {
            if (pattern==colon_pattern)
              goto ok_might_be_colon;
@@ -685,6 +762,10 @@ void find_islandname(RgbImage *ri) {
     islandnamer.br.x= p.x;
 
     identify_rgbimage(ri, islandnamer, archisland, "island");
+  } else {
+
+    MUST(!"sunshine shows ship or ahoy", MS(sunshine) );
+
   }
 
   char *delim= strstr(archisland," - ");
@@ -692,5 +773,4 @@ void find_islandname(RgbImage *ri) {
   archipelago= masprintf("%.*s", (int)(delim-archisland), archisland);
   island= masprintf("%s", delim+3);
 
-  free(ri);
 }