vg_log.h

   1 #ifndef VG_LOG_H
   2 #define VG_LOG_H
   3
   4 #include <stdarg.h>
   5 #include <string.h>
   6 #include <malloc.h>
   7 #include "vg_stdint.h"
   8 #include "vg_platform.h"
   9
  10 #define KNRM  "\x1B[0m"
  11 #define KBLK  "\x1B[30m"
  12 #define KRED  "\x1B[31m"
  13 #define KGRN  "\x1B[32m"
  14 #define KYEL  "\x1B[33m"
  15 #define KBLU  "\x1B[34m"
  16 #define KMAG  "\x1B[35m"
  17 #define KCYN  "\x1B[36m"
  18 #define KWHT  "\x1B[37m"
  19
  20 #define PRINTF_v2f( V2 ) "%.4f %.4f\n",           V2[0], V2[1]
  21 #define PRINTF_v3f( V3 ) "%.4f %.4f %.4f\n",      V3[0], V3[1], V3[2]
  22 #define PRINTF_v4f( V4 ) "%.4f %.4f %.4f %.4f\n", V4[0], V4[1], V4[2], V4[3]
  23
  24 #ifdef VG_GAME
  25 static SDL_SpinLock log_print_sl;
  26 #endif
  27
  28 struct vg_log
  29 {
  30    char buffer[64][96];
  31    u32  buffer_line_count, buffer_line_current;
  32 }
  33 static vg_log;
  34
  35 void _vg_console_append_to_log( const char *str )
  36 {
  37    if( vg_log.buffer_line_count < vg_list_size( vg_log.buffer ) )
  38       vg_log.buffer_line_count ++;
  39
  40    char *dest = vg_log.buffer[ vg_log.buffer_line_current ++ ];
  41
  42    for( int i=0; i<vg_list_size( vg_log.buffer[0] ); i++ ){
  43       if( !str[i] || ( i == vg_list_size(vg_log.buffer[0])-1 ) ){
  44          dest[i] = '\0';
  45          break;
  46       }
  47
  48       dest[i] = str[i];
  49    }
  50
  51    if( vg_log.buffer_line_current >= vg_list_size( vg_log.buffer ) )
  52       vg_log.buffer_line_current = 0;
  53 }
  54
  55 VG_STATIC void _vg_log_write( FILE *file, const char *prefix,
  56                               const char *fmt, va_list args )
  57 {
  58 #ifdef VG_GAME
  59    SDL_AtomicLock( &log_print_sl );
  60 #endif
  61
  62         char buffer[ 4096 ];
  63         int i, j;
  64
  65         for( i=0; i<vg_list_size( buffer ); i ++ ){
  66                 if( prefix[i] )
  67                         buffer[i] = prefix[i];
  68                 else
  69                         break;
  70         }
  71
  72         j = i + vsnprintf( buffer + i, vg_list_size( buffer ) - i -12, fmt, args );
  73         strcpy( buffer + j, KNRM );
  74
  75         fputs( buffer, file );
  76
  77    _vg_console_append_to_log( buffer );
  78 #ifdef VG_GAME
  79    SDL_AtomicUnlock( &log_print_sl );
  80 #endif
  81 }
  82
  83 #define VG_LOGX( NAME, PIPE, PFX )           \
  84 VG_STATIC void NAME(const char *fmt, ...)    \
  85 {                                            \
  86    va_list args;                             \
  87    va_start( args, fmt );                    \
  88    _vg_log_write( PIPE, (PFX), fmt, args );   \
  89    va_end( args );                           \
  90 }
  91
  92 VG_LOGX( vg_success, stdout, (KGRN "success" KWHT "| " KGRN) )
  93 VG_LOGX( vg_info,    stdout, (KNRM "   info" KWHT "| " KNRM) )
  94 VG_LOGX( vg_warn,    stdout, (KYEL "   warn" KWHT "| " KYEL) )
  95 VG_LOGX( vg_error,   stderr, (KRED "  error" KWHT "| " KRED) )
  96 VG_LOGX( vg_low,     stdout, (KWHT "    log" KWHT "| " KWHT) )
  97
  98 #endif /* VG_LOG_H */