src/apc/fileparser_old.y

   1 /* Asset Package Compiler */
   2 %{
   3   #include <stdio.h>
   4   #include <string.h>
   5   #include <dirent.h>
   6   #include "sprite.h"
   7   #include "symbol.h"
   8   #include <png.h>
   9
  10
  11   extern void yyerror();
  12   extern int rinit();
  13   extern int yylex();
  14   #define DIR_SIZE 128/* size when all files have been concatenated together */
  15
  16   char dir_files[DIR_SIZE];
  17   FILE* yyin;
  18
  19   int populate_yyin(FILE*);
  20   int handle_vdat(char *);
  21   int eval_png_file(char*);
  22   int read_png_file(char*);
  23
  24 %}
  25 %define parse.error verbose
  26 %union{
  27   char* str;
  28  }
  29
  30 /* %token <str> EXT */
  31 /* %token <str> FW */
  32 /* %token <str> SPR */
  33 /* %token CC */
  34
  35 /*  /\* Rules *\/ */
  36 /* %% */
  37 /* SS: SPR '/' MD '.' EXT */
  38 /* MD: CC '_' FW */
  39 /* | FW */
  40 /* | CC */
  41
  42
  43 %token <str> VDAT
  44 %token ODAT
  45 %token ADAT
  46
  47 /* Rules */
  48 %%
  49 FLIST : FNAME /* Now output to VDAT.o */
  50 FNAME : VDAT {printf("handle_vdat(%s)\n", $1);handle_vdat(yylval.str);printf("handled vdat\n");}
  51       | ADAT
  52       | ODAT
  53
  54 %%
  55 int
  56 main(int argc, char** argv)
  57 {
  58   /* Take arguments */
  59
  60   /* Concatenate all files into buf, they are null-terminated
  61      by default */
  62   FILE *fp;
  63
  64   fp = fopen("all_files", "w+");
  65
  66   if(!populate_yyin(fp))
  67     printf("error processing the directory");
  68
  69   yyin = fp;
  70   rinit();
  71   yyparse(); /* runs handle_vdat after token is scanned */
  72
  73
  74
  75   return 0;
  76 }
  77 void
  78 yyerror (char const *s)
  79 {
  80   fprintf(stderr, "%s\n", s);
  81 }
  82
  83 /* TODO: READ INTO SINGLE BUFFER, NOT A FILE */
  84 int
  85 populate_yyin(FILE* fp)
  86 {
  87   int files_pos = 0;
  88   int file_len = 0;
  89   struct dirent* ep;
  90
  91   DIR* dp = opendir("pngfiles");
  92   /* Concatenate all file names, seperated by '\0'
  93      into files[] */
  94   if(dp != NULL)
  95     {
  96       while(ep = readdir(dp))
  97         { file_len = strlen(ep->d_name);
  98           fwrite(ep->d_name, 1, file_len, fp);
  99           printf("writing %s to file\n", ep->d_name);
 100         }
 101       fseek(fp, SEEK_SET, 0);
 102       return 0;
 103     }
 104   else
 105     {return 1;
 106     }
 107   closedir(dp);
 108 }
 109
 110
 111
 112
 113 /* Analyze file_name for information on sprite sheet,
 114    store sprite sheet and label into sprite then
 115    push sprite onto sprites[]*/
 116 int
 117 handle_vdat(char* file_name)
 118 {
 119   /* Parse the file_name for data */
 120
 121
 122   /* Get the specs of the PNG file  */
 123   if(!eval_png_file(file_name))
 124   {
 125     printf("Failed in read_png_file\n");
 126     return 1;
 127   }
 128
 129   /* Insert sprite sheet from PNG into sprite_sheets */
 130   push_sprite();
 131
 132
 133
 134
 135   /* Store dir/filename in label as well as any other data that fits */
 136 }
 137 int eval_png_file(char* file_name)
 138 {
 139   /* Evaluate file_name for metadata */
 140
 141   /* Extracts header info from png_file */
 142   read_png_file(file_name);
 143
 144
 145   /* Create the symbol and put it in symbol_table[]*/
 146
 147   return 0;
 148 }
 149
 150
 151
 152 /* variables for libPNG */
 153 int png_width,png_height;
 154 png_byte bit_depth;
 155 png_byte color_type;
 156 png_structp png_ptr;
 157 png_infop info_ptr;
 158
 159 int
 160 read_png_file( char* file_name)
 161 {
 162   /* Setup PNG file */
 163   char header[8];
 164   int is_png = 0;
 165   char* dir = "pngfiles";
 166
 167   /* TODO: Change this fopen to a real var! */
 168   FILE *fp = fopen("pngfiles/env_street_road03_0.png","rb");
 169
 170   if(!fp)
 171     { printf("Could not read file %s in handle_vdat()", file_name);
 172       return 1;
 173     }
 174
 175   fread(header, 1, 8, fp);
 176
 177   is_png = !png_sig_cmp(header, 0, 8);
 178   if(!is_png)
 179     return 1;
 180
 181   png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
 182
 183   if (!png_ptr)
 184     { printf("Failed to allocate png_ptr\n");
 185       return 1;
 186     }
 187   info_ptr = png_create_info_struct(png_ptr);
 188
 189   if (!info_ptr)
 190     { printf("Failed to create info_ptr\n");
 191       png_destroy_read_struct(&png_ptr,(png_infopp)NULL, (png_infopp)NULL);
 192       return 1;
 193     }
 194
 195   png_infop end_info = png_create_info_struct(png_ptr);
 196   if (!end_info)
 197     { printf("Failed to create end_info \n");
 198       png_destroy_read_struct(&png_ptr,(png_infopp)NULL, (png_infopp)NULL);
 199       return 1;
 200     }
 201
 202   if(setjmp(png_jmpbuf(png_ptr)))
 203     { printf("Failed in init_io\n");
 204       png_destroy_read_struct(&png_ptr,(png_infopp)NULL, (png_infopp)NULL);
 205       fclose(fp);
 206       return 1;
 207     }
 208     png_init_io(png_ptr, fp);
 209     png_set_sig_bytes(png_ptr, 8);
 210
 211     png_read_info(png_ptr, info_ptr);
 212
 213     png_width = png_get_image_width(png_ptr, info_ptr);
 214     png_height = png_get_image_height(png_ptr, info_ptr);
 215     color_type = png_get_color_type(png_ptr, info_ptr);
 216     bit_depth = png_get_bit_depth(png_ptr, info_ptr);
 217
 218     png_read_update_info(png_ptr, info_ptr);
 219
 220
 221     return 0;
 222
 223 }