Free Hero Mesh

} Filter;

typedef struct {
  char basename[64];
  Filter filters[64];
  Uint8 nfilters;
} DependentPicture;

typedef struct {
  sqlite3_vtab_cursor super;
  int pos;
} Cursor;

static Uint8 cur_type;
static Uint8 gsizes[16];
static Picture*cur_pic;

static void fn_valid_name(sqlite3_context*cxt,int argc,sqlite3_value**argv) {
  const char*s=sqlite3_value_text(*argv);
  if(!s || !*s || s[strspn(s,"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_-0123456789")]) {
    sqlite3_result_error(cxt,"Invalid name",-1);
    return;
  }
  sqlite3_result_value(cxt,*argv);
}

static int vt_graph_close(sqlite3_vtab_cursor*cur) {
  sqlite3_free(cur);
  return SQLITE_OK;
}

static int vt_graph_eof(sqlite3_vtab_cursor*cc) {
  Cursor*cur=(void*)cc;
  return (!cur_pic || cur->pos>=cur_pic->size*cur_pic->size);
}

static int vt_graph_open(sqlite3_vtab*vt,sqlite3_vtab_cursor**cur) {
  *cur=sqlite3_malloc(sizeof(Cursor));
  return *cur?SQLITE_OK:SQLITE_NOMEM;
}

static int vt_graph_connect(sqlite3*db,void*aux,int argc,const char*const*argv,sqlite3_vtab**vt,char**ex) {
  *vt=sqlite3_malloc(sizeof(sqlite3_vtab));
  if(!*vt) return SQLITE_NOMEM;
  sqlite3_declare_vtab(db,"CREATE TABLE `GRID`(`X` INT, `Y` INT, `C` INT);");
  return SQLITE_OK;
}

static int vt_graph_disconnect(sqlite3_vtab*vt) {
  sqlite3_free(vt);
  return SQLITE_OK;
}

static int vt_graph_filter(sqlite3_vtab_cursor*cc,int n,const char*s,int c,sqlite3_value**v) {
  Cursor*cur=(void*)cc;
  cur->pos=0;
  return SQLITE_OK;
}

static int vt_graph_index(sqlite3_vtab*vt,sqlite3_index_info*inf) {
  return SQLITE_OK;
}

static int vt_graph_column(sqlite3_vtab_cursor*cc,sqlite3_context*cxt,int n) {
  Cursor*cur=(void*)cc;
  sqlite3_result_int(cxt,n==0?cur->pos%cur_pic->size:n==1?cur->pos/cur_pic->size:cur_pic->data[cur->pos+cur_pic->size]);
  return SQLITE_OK;
}

static int vt_graph_next(sqlite3_vtab_cursor*cc) {
  Cursor*cur=(void*)cc;
  cur->pos++;
  return SQLITE_OK;
}

static int vt_graph_rowid(sqlite3_vtab_cursor*cc,sqlite3_int64*p) {
  Cursor*cur=(void*)cc;
  *p=cur->pos;
  return SQLITE_OK;
}

static int vt_graph_update(sqlite3_vtab*vt,int argc,sqlite3_value**argv,sqlite3_int64*rowid) {
  if(argc!=5 || sqlite3_value_type(argv[0])==SQLITE_NULL) return SQLITE_ERROR;
  cur_pic->data[cur_pic->size+sqlite3_value_int(argv[0])]=sqlite3_value_int(argv[4]);
  return SQLITE_OK;
}

static const sqlite3_module vt_graph={
  .iVersion=1,
  .xBestIndex=vt_graph_index,
  .xClose=vt_graph_close,
  .xColumn=vt_graph_column,
  .xConnect=vt_graph_connect,
  .xDisconnect=vt_graph_disconnect,
  .xEof=vt_graph_eof,
  .xFilter=vt_graph_filter,
  .xNext=vt_graph_next,
  .xOpen=vt_graph_open,
  .xRowid=vt_graph_rowid,
  .xUpdate=vt_graph_update,
};

static int load_picture_file(void) {
  sqlite3_stmt*st=0;
  FILE*fp;
  char*nam;
  char*buf=0;
  int r=0;

    fputc(pal[c].r,fp); fputc(pal[c].r,fp);
    fputc(pal[c].g,fp); fputc(pal[c].g,fp);
    fputc(pal[c].b,fp); fputc(pal[c].b,fp);
    fputc(c?255:0,fp); fputc(c?255:0,fp);
  }
  pclose(fp);
}

static int response_cb(void*aux,int argc,char**argv,char**names) {
  if(argc && *argv) screen_message(*argv);
  return 1;
}

static inline void edit_picture_1(Picture**pict,const char*name) {
  static const Uint8 shade[64]=
    "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F"
    "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F"
    "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F"
    "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F"

  int xx=-1;
  int yy=-1;
  unsigned char buf[256];
  m.x=m.y=m.w=m.h=0;
  set_cursor(XC_arrow);
  redraw:
  if((sel&~15) || !pict[sel]) sel=0;
  cur_pic=pict[sel];
  z=screen->w-pict[sel]->size-169;
  if(z>screen->h-49) z=screen->h-49;
  z/=pict[sel]->size;
  if(z<3) return;
  if(z>32) z=32;
  SDL_LockSurface(screen);
  p=screen->pixels;

            do_export(pict[sel]);
            goto redraw;
          case SDLK_LEFT: case SDLK_KP4: --cc; goto redraw;
          case SDLK_RIGHT: case SDLK_KP6: ++cc; goto redraw;
          case SDLK_UP: case SDLK_KP8: cc-=16; goto redraw;
          case SDLK_DOWN: case SDLK_KP2: cc+=16; goto redraw;
          case SDLK_HOME: case SDLK_KP7: cc=0; goto redraw;
          case SDLK_F12:
            p=(Uint8*)screen_prompt("<SQL>");
            if(p) sqlite3_exec(userdb,p,response_cb,0,0);
            goto redraw;
        }
        break;
      case SDL_VIDEOEXPOSE:
        goto redraw;
    }
  }
}

        pict[i]=malloc(sizeof(Picture)+(gsizes[i]+1)*gsizes[i]);
        if(!pict[i]) fatal("Allocation failed\n");
        pict[i]->size=gsizes[i];
        memset(pict[i]->data,0,(gsizes[i]+1)*gsizes[i]);
      }
    }
    edit_picture_1(pict,name);
    cur_pic=0;
    fp=open_memstream((char**)&buf,&size);
    if(!fp) fatal("Cannot open memory stream\n");
    for(i=n=0;i<16;i++) if(pict[i]) n++;
    fputc(n,fp);
    for(i=0;i<n;i++) fputc(pict[i]->size,fp);
    for(i=0;i<n>>1;i++) fputc(0,fp);
    for(i=0;i<n;i++) compress_picture(fp,pict[i]);

  SDL_Event ev;
  SDL_Rect r;
  sqlite3_stmt*st;
  int sc=0;
  int max=load_picture_file();
  int i,n;
  sqlite3_create_function(userdb,"VALID_NAME",1,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_valid_name,0,0);
  sqlite3_create_module(userdb,"GRAPH",&vt_graph,0);
  init_palette();
  optionquery[1]=Q_imageSize;
  *gsizes=picture_size=strtol(xrm_get_resource(resourcedb,optionquery,optionquery,2)?:"16",0,10);
  set_cursor(XC_arrow);
  set_caption();
  i=sqlite3_prepare_v3(userdb,"SELECT `ID`,SUBSTR(`NAME`,1,LENGTH(`NAME`)-4),`TYPE` FROM `PICEDIT` WHERE `TYPE` ORDER BY `NAME` LIMIT ?1 OFFSET ?2;",-1,SQLITE_PREPARE_PERSISTENT,&st,0);
  if(i) fatal("SQL error (%d): %s\n",i,sqlite3_errmsg(userdb));