Function taunt_LoadWaveFile

Descent3/audiotaunts.cpp:492–792

#define SOUND_FILE_SAMPLE_ALIGNMENT 4
char taunt_LoadWaveFile(char *filename, tWaveFile *wave) {
  // File pointer to sound file
  CFILE *cfptr;

  wave->sample_16bit = NULL;
  wave->sample_8bit = NULL;
  wave->np_sample_length = 0;
  wave->sample_length = 0;

  cfptr = NULL;
  char format_type[80];       // ASCII name of format type
  uint16_t fmttag = 0;  // Numerical format type
  uint32_t ckid;         // Current chunk's ID
  uint32_t cksize;       // Current chunk's size in bytes
  uint32_t filesize;     // Size of the sound file
  uint32_t nextseek = 0; // Location of the next seek
  uint32_t aligned_size; // Sound files are aligned to SOUND_FILE_SAMPLE_ALIGNMENT samples

  // Sound format information
  int samples_per_second;
  int16_t bits_per_sample;
  int16_t number_channels;
  char error_code = 0;

  // Used to read temporary long values
  uint32_t temp_long;

  // Flags for if we previously read data or a format
  char f_data, f_fmt = 0;

  // Loop counter
  int count;

  // Open the wave file
  if ((cfptr = cfopen(filename, "rb")) == NULL) {
    error_code = 1;
    mprintf(0, "TAUNT: Wav %s not found\n", filename);
    goto error_state;
  }

  // Make sure that it is a RIFF format
  temp_long = (uint32_t)cf_ReadInt(cfptr);
  if (temp_long != 0x46464952) {
    error_code = 2;
    mprintf(0, "TAUNT: Wav Load: %s is not a RIFF format file\n", filename);
    goto error_state;
  }

  // The first item is the filesize minus the RIFF type specifier and filesize (add current location for total filesize)
  filesize = cf_ReadInt(cfptr);
  filesize += cftell(cfptr);

  // Make sure it is a wave file
  temp_long = (uint32_t)cf_ReadInt(cfptr);
  if (temp_long != 0x45564157) {
    error_code = 3;
    mprintf(0, "TAUNT: Wav Load:  %s is not a WAVE file\n", filename);
    goto error_state;