added: 16-bit buffer byteswap function in EndianSwap

xbmc/utils/EndianSwap.cpp

@@ -0,0 +1,42 @@
+/*
+ *      Copyright (C) 2012 Team XBMC
+ *      http://www.xbmc.org
+ *
+ *  This Program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2, or (at your option)
+ *  any later version.
+ *
+ *  This Program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *  http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include "EndianSwap.h"
+
+/* based on libavformat/spdif.c */
+void Endian_Swap16_buf(uint16_t *dst, uint16_t *src, int w)
+{
+  int i;
+
+  for (i = 0; i + 8 <= w; i += 8) {
+    dst[i + 0] = Endian_Swap16(src[i + 0]);
+    dst[i + 1] = Endian_Swap16(src[i + 1]);
+    dst[i + 2] = Endian_Swap16(src[i + 2]);
+    dst[i + 3] = Endian_Swap16(src[i + 3]);
+    dst[i + 4] = Endian_Swap16(src[i + 4]);
+    dst[i + 5] = Endian_Swap16(src[i + 5]);
+    dst[i + 6] = Endian_Swap16(src[i + 6]);
+    dst[i + 7] = Endian_Swap16(src[i + 7]);
+  }
+
+  for (; i < w; i++)
+    dst[i + 0] = Endian_Swap16(src[i + 0]);
+}
+

xbmc/utils/EndianSwap.h

@@ -19,7 +19,7 @@
  *
  */
 
- /* Functions taken from SDL (SDL_endian.h) */
+ /* Endian_SwapXX functions taken from SDL (SDL_endian.h) */
 
 #ifndef __ENDIAN_SWAP_H__
 #define __ENDIAN_SWAP_H__
@@ -83,6 +83,8 @@ static __inline__ uint64_t Endian_Swap64(uint64_t x) {
 
 }
 
+void Endian_Swap16_buf(uint16_t *dst, uint16_t *src, int w);
+
 #ifndef WORDS_BIGENDIAN
 #define Endian_SwapLE16(X) (X)
 #define Endian_SwapLE32(X) (X)

xbmc/utils/Makefile

@@ -11,6 +11,7 @@ SRCS=AlarmClock.cpp \
      CryptThreading.cpp \
      DownloadQueue.cpp \
      DownloadQueueManager.cpp \
+     EndianSwap.cpp \
      Fanart.cpp \
      fastmemcpy.c \
      fastmemcpy-arm.S \