nbvtf/vtf_cmd.c

   1 #include <stdio.h>
   2 #include <string.h>
   3 #include <stdint.h>
   4 #include <math.h>
   5
   6 #define STB_IMAGE_IMPLEMENTATION
   7 #define NBVTF_SHOW_STDERR
   8 #include "nbvtf.h"
   9
  10 // Find file path extension, returns NULL if no ext (0x00)
  11 char *str_findext( char *szPath, char const delim )
  12 {
  13         char *c, *ptr ;
  14
  15         c = szPath;
  16         ptr = NULL;
  17
  18         while( *c )
  19         {
  20                 if( *c == delim )
  21                 {
  22                         ptr = c + 1;
  23                 }
  24
  25                 c ++;
  26         }
  27
  28         return ptr;
  29 }
  30
  31 // gets rid of extension on string only left with folder/filename
  32 void path_stripext( char *szPath )
  33 {
  34         char *point, *start;
  35
  36         // Skip folders
  37         if( !(start = str_findext( szPath, '/' )) )
  38         {
  39                 start = szPath;
  40         }
  41
  42         if( (point = str_findext( start, '.' )) )
  43         {
  44                 if( point > szPath )
  45                 {
  46                         *(point-1) = 0x00;
  47                 }
  48         }
  49 }
  50
  51 EImageFormat_t format_from_str( const char *str )
  52 {
  53         if( !strcmp( str, "dxt1" ) )
  54                 return k_EImageFormat_DXT1;
  55         if( !strcmp( str, "dxt5" ) )
  56                 return k_EImageFormat_DXT5;
  57         if( !strcmp( str, "rgb8" ) )
  58                 return k_EImageFormat_BGR888;
  59         if( !strcmp( str, "rgba8" ) )
  60                 return k_EImageFormat_ABGR8888;
  61
  62         return k_EImageFormat_NONE;
  63 }
  64
  65 EImageFormat_t format_in_path( const char *path )
  66 {
  67         char filepath[ 512 ];
  68
  69         strcpy( filepath, path );
  70         path_stripext( filepath );
  71
  72         char *format_str = str_findext( filepath, '.' );
  73
  74         if( format_str )
  75         {
  76                 EImageFormat_t fmt;
  77                 fmt = format_from_str( format_str );
  78
  79                 if( fmt != -1 )
  80                 {
  81                         return fmt;
  82                 }
  83         }
  84
  85         return k_EImageFormat_DXT1;
  86 }
  87
  88 void auto_output( const char *path, char *dest )
  89 {
  90         strcpy( dest, path );
  91         path_stripext( dest );
  92         strcat( dest, ".vtf" );
  93 }
  94
  95 int main( int argc, char *argv[] )
  96 {
  97         char dest[500];
  98
  99         char *path_source;
 100         EImageFormat_t format = k_EImageFormat_NONE;
 101
 102         if( argc < 2 )
 103         {
 104                 printf( "Usage: vmt_cmd <optional_format> input_file<.format_in_path>.png\nSupported Formats:\n\trgb8, rgba8, dxt1, dxt5\n" );
 105                 return 0;
 106         }
 107
 108         if( argc == 3 )
 109         {
 110                 path_source = argv[2];
 111                 format = format_from_str( argv[1] );
 112         }
 113
 114         if( argc == 2 )
 115         {
 116                 path_source = argv[1];
 117                 format = format_in_path( path_source );
 118         }
 119
 120         if( format == -1 )
 121         {
 122                 fprintf( stderr, "tovtf: error with format choice. Unsupported\n" );
 123                 return 0;
 124         }
 125
 126         printf( "tovtf: Creating vtf with format '%s'\n", vtf_format_strings[ format ] );
 127
 128         auto_output( path_source, dest );
 129         nbvtf_convert( path_source, 0, 0, 1, format, 0x00, dest );
 130
 131         return 0;
 132 }