1 files changed, 69 insertions, 0 deletions
diff --git a/Src/Plugins/Encoder/enc_flac/StreamFileWin32.cpp b/Src/Plugins/Encoder/enc_flac/StreamFileWin32.cpp
new file mode 100644
index 00000000..04c152dd
--- /dev/null
+++ b/Src/Plugins/Encoder/enc_flac/StreamFileWin32.cpp
@@ -0,0 +1,69 @@
+#include "StreamFileWin32.h"
+#include <assert.h>
+
+static __int64 Seek64(HANDLE hf, __int64 distance, DWORD MoveMethod)
+{
+	LARGE_INTEGER li;
+
+	li.QuadPart = distance;
+
+	li.LowPart = SetFilePointer (hf, li.LowPart, &li.HighPart, MoveMethod);
+
+	if (li.LowPart == INVALID_SET_FILE_POINTER && GetLastError() != NO_ERROR)
+	{
+		li.QuadPart = -1;
+	}
+
+	return li.QuadPart;
+}
+
+
+FLAC__StreamEncoderWriteStatus Win32_Write(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], size_t bytes, unsigned samples, unsigned current_frame, void *client_data)
+{
+	assert(bytes <= 4294967295U);
+
+	HANDLE file = ((Win32_State *)client_data)->handle;
+	if(bytes > 0) 
+	{
+		assert(sizeof(FLAC__byte) == 1);
+		DWORD bytesWritten = 0, bytesToWrite = (DWORD)bytes;
+		BOOL result = WriteFile(file, buffer, bytesToWrite, &bytesWritten, NULL);
+		((Win32_State *)client_data)->bytesWritten += bytesWritten;
+
+		if (!result)
+			return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
+		return FLAC__STREAM_ENCODER_WRITE_STATUS_OK;
+	}
+	else
+		return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
+}
+
+FLAC__StreamEncoderSeekStatus Win32_Seek(const FLAC__StreamEncoder *encoder, FLAC__uint64 absolute_byte_offset, void *client_data)
+{
+	HANDLE file = ((Win32_State *)client_data)->handle;
+
+	__int64 result = Seek64(file, absolute_byte_offset, FILE_BEGIN);
+
+	if (result == INVALID_SET_FILE_POINTER)
+		return FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR;
+	else
+	{
+		return FLAC__STREAM_ENCODER_SEEK_STATUS_OK;
+	}
+}
+
+FLAC__StreamEncoderTellStatus Win32_Tell(const FLAC__StreamEncoder *encoder, FLAC__uint64 *absolute_byte_offset, void *client_data)
+{
+	HANDLE file = ((Win32_State *)client_data)->handle;
+
+	__int64 position = Seek64(file, 0, FILE_CURRENT);
+
+	if (position == INVALID_SET_FILE_POINTER)
+		return FLAC__STREAM_ENCODER_TELL_STATUS_ERROR;
+	else
+	{
+		*absolute_byte_offset=position;
+		return FLAC__STREAM_ENCODER_TELL_STATUS_OK;
+	}
+}
+