Version 3.0

STK/RawWvIn.cpp

@@ -0,0 +1,79 @@
+/*******************************************/
+/*  RawWvIn Input Class,                   */
+/*  by Gary P. Scavone, 1999               */
+/*                                         */
+/*  This object inherits from WvIn and is  */
+/*  used to open raw 16-bit data (signed   */
+/*  integer) files for playback.           */
+/*                                         */
+/*  STK RawWave files are assumed to be    */
+/*  monaural and big-endian.               */
+/*******************************************/
+
+#include "RawWvIn.h"
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#ifdef __LITTLE_ENDIAN__
+  #include "swapstuf.h"
+#endif
+
+RawWvIn :: RawWvIn(char *fileName, char *mode)
+{
+  // Use the system call "stat" to determine the file length
+  struct stat filestat;
+  if (stat(fileName, &filestat) == -1)
+    { /* Opening file failed */
+      fprintf(stderr,"Cannot access or find rawwave file: %s !!!\n",fileName);
+      exit(0);
+    }
+  length = (long) filestat.st_size / 2;  // length in 2-byte samples
+
+  // Open the file and read samples into data[]
+  FILE *fd;
+  fd = fopen(fileName,"rb");
+  if (!fd)   {
+    printf("Couldn't open or find rawwave file %s !!!\n",fileName);
+    exit(0);
+  }
+
+  channels = 1;                     // All STK rawwave files are mono
+  data = (MY_FLOAT *) new MY_FLOAT[(length+1)*channels];
+
+  long i = 0;
+  INT16 temp;
+  fseek(fd,0,SEEK_SET);  // Only here to bypass bug in Linux glibc 2.1x (RedHat 6.0)
+  while (fread(&temp,2,1,fd)) {
+#ifdef __LITTLE_ENDIAN__
+    temp = SwapINT16 (temp);
+#endif
+    data[i++] = (MY_FLOAT) temp;
+  }
+  fclose(fd);
+
+  // Setup for looping or one-shot playback
+  if (!strcmp(mode,"looping")) {
+    looping = 1;
+    data[length] = data[0];          // extra sample for interpolation
+  }
+  else if (!strcmp(mode,"oneshot")) {
+    looping = 0;
+    data[length] = data[length-1];  // extra sample for interpolation
+  }
+  else {
+    fprintf(stderr,"ERROR: Unsupported RawWvIn mode: %s\n",mode);
+    free(data);
+    exit(0);
+  }
+
+  time = (MY_FLOAT) 0.0;
+  phaseOffset = (MY_FLOAT) 0.0;
+  rate = (MY_FLOAT) 1.0;
+  interpolate = 0;
+  finished = 0;
+  lastOutput = (MY_FLOAT *) calloc(channels, sizeof(MY_FLOAT));
+}
+
+RawWvIn :: ~RawWvIn()
+{
+}