1 files changed, 54 insertions, 0 deletions
diff --git a/Runtime/Utilities/WavFileUtility.cpp b/Runtime/Utilities/WavFileUtility.cpp
new file mode 100644
index 0000000..2d2471d
--- /dev/null
+++ b/Runtime/Utilities/WavFileUtility.cpp
@@ -0,0 +1,54 @@
+#include "UnityPrefix.h"
+#include "Configuration/UnityConfigure.h"
+
+#include "WavFileUtility.h"
+#include <stdio.h>
+
+static inline int fput2 (unsigned short v, FILE* f)
+{
+	return fwrite (&v, 2, 1, f);
+}
+
+static inline int fput4 (unsigned v, FILE* f)
+{
+	return fwrite (&v, 4, 1, f);
+}
+
+bool WriteWaveFile (char const* filename, int channels, int samplebits, int freq, void* data, int samples)
+{
+	FILE* wf = fopen (filename, "wb+");
+	if (!wf)
+		return false;
+		
+	size_t datasize = channels * (samplebits / 8) * samples;
+
+#define C(x) if (x < 0) goto err
+
+	// RIFF chunk
+	C((fputs ("RIFF", wf)));
+	C((fput4 (datasize + (12-8) + 24 + 8, wf)));
+	C((fputs ("WAVE", wf)));
+	
+	// FORMAT chunk
+	C((fputs ("fmt ", wf)));
+	C((fput4 (0x10, wf)));
+	C((fput2 (0x01, wf)));
+	C((fput2 (channels, wf)));
+	C((fput4 (freq, wf)));
+	C((fput4 (channels * samplebits * freq, wf)));
+	C((fput2 (samplebits >> 3, wf)));
+	C((fput2 (samplebits, wf)));
+	
+	// DATA chunk
+	C((fputs ("data", wf)));
+	C((fput4 (datasize, wf)));
+	C((fwrite (data, datasize, 1, wf)));
+#undef C
+	
+	fclose (wf);
+	return true;
+	
+err:
+	fclose (wf);
+	return false;
+}