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 _WIN32
  25  #define PRINTF_U64 "%llu"
  26 #else
  27  #define PRINTF_U64 "%lu"
  28 #endif
  29
  30 #ifdef VG_GAME
  31 static SDL_SpinLock log_print_sl;
  32 #endif
  33
  34 struct vg_log
  35 {
  36    char buffer[64][96];
  37    u32  buffer_line_count, buffer_line_current;
  38 }
  39 static vg_log;
  40
  41 void _vg_console_append_to_log( const char *str )
  42 {
  43    if( vg_log.buffer_line_count < vg_list_size( vg_log.buffer ) )
  44       vg_log.buffer_line_count ++;
  45
  46    char *dest = vg_log.buffer[ vg_log.buffer_line_current ++ ];
  47
  48    for( int i=0; i<vg_list_size( vg_log.buffer[0] ); i++ ){
  49       if( !str[i] || ( i == vg_list_size(vg_log.buffer[0])-1 ) ){
  50          dest[i] = '\0';
  51          break;
  52       }
  53
  54       dest[i] = str[i];
  55    }
  56
  57    if( vg_log.buffer_line_current >= vg_list_size( vg_log.buffer ) )
  58       vg_log.buffer_line_current = 0;
  59 }
  60
  61 VG_STATIC void _vg_log_write( FILE *file, const char *prefix,
  62                               const char *fmt, va_list args )
  63 {
  64 #ifdef VG_GAME
  65    SDL_AtomicLock( &log_print_sl );
  66 #endif
  67
  68         char buffer[ 4096 ];
  69         int i, j;
  70
  71         for( i=0; i<vg_list_size( buffer ); i ++ ){
  72                 if( prefix[i] )
  73                         buffer[i] = prefix[i];
  74                 else
  75                         break;
  76         }
  77
  78         j = i + vsnprintf( buffer + i, vg_list_size( buffer ) - i -12, fmt, args );
  79         strcpy( buffer + j, KNRM );
  80
  81         fputs( buffer, file );
  82
  83    _vg_console_append_to_log( buffer );
  84 #ifdef VG_GAME
  85    SDL_AtomicUnlock( &log_print_sl );
  86 #endif
  87 }
  88
  89 #define VG_LOGX( NAME, PIPE, PFX )           \
  90 VG_STATIC void NAME(const char *fmt, ...)    \
  91 {                                            \
  92    va_list args;                             \
  93    va_start( args, fmt );                    \
  94    _vg_log_write( PIPE, (PFX), fmt, args );   \
  95    va_end( args );                           \
  96 }
  97
  98 VG_LOGX( vg_success, stdout, (KGRN "success" KWHT "| " KGRN) )
  99 VG_LOGX( vg_info,    stdout, (KNRM "   info" KWHT "| " KNRM) )
 100 VG_LOGX( vg_warn,    stdout, (KYEL "   warn" KWHT "| " KYEL) )
 101 VG_LOGX( vg_error,   stderr, (KRED "  error" KWHT "| " KRED) )
 102 VG_LOGX( vg_low,     stdout, (KWHT "    log" KWHT "| " KWHT) )
 103
 104 #endif /* VG_LOG_H */