From 0fed3b1c32d99560482ea162b197531439df76e5 Mon Sep 17 00:00:00 2001
From: Tim Angus <tim@ngus.net>
Date: Mon, 26 Oct 2009 00:10:07 +0000
Subject: * Merge ioq3-r1708

---
 src/SDL12/include/SDL_endian.h | 53 ++++++++++++++++++++++++++++--------------
 1 file changed, 35 insertions(+), 18 deletions(-)

(limited to 'src/SDL12/include/SDL_endian.h')

diff --git a/src/SDL12/include/SDL_endian.h b/src/SDL12/include/SDL_endian.h
index 6257a649..f7a2e2f8 100644
--- a/src/SDL12/include/SDL_endian.h
+++ b/src/SDL12/include/SDL_endian.h
@@ -1,6 +1,6 @@
 /*
     SDL - Simple DirectMedia Layer
-    Copyright (C) 1997-2006 Sam Lantinga
+    Copyright (C) 1997-2009 Sam Lantinga
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Lesser General Public
@@ -20,16 +20,23 @@
     slouken@libsdl.org
 */
 
-/* Functions for reading and writing endian-specific values */
+/**
+ *  @file SDL_endian.h
+ *  Functions for reading and writing endian-specific values
+ */
 
 #ifndef _SDL_endian_h
 #define _SDL_endian_h
 
 #include "SDL_stdinc.h"
 
-/* The two types of endianness */
+/** @name SDL_ENDIANs
+ *  The two types of endianness 
+ */
+/*@{*/
 #define SDL_LIL_ENDIAN	1234
 #define SDL_BIG_ENDIAN	4321
+/*@}*/
 
 #ifndef SDL_BYTEORDER	/* Not defined in SDL_config.h? */
 #if defined(__hppa__) || \
@@ -50,13 +57,16 @@
 extern "C" {
 #endif
 
-/* Use inline functions for compilers that support them, and static
-   functions for those that do not.  Because these functions become
-   static for compilers that do not support inline functions, this
-   header should only be included in files that actually use them.
-*/
+/**
+ *  @name SDL_Swap Functions
+ *  Use inline functions for compilers that support them, and static
+ *  functions for those that do not.  Because these functions become
+ *  static for compilers that do not support inline functions, this
+ *  header should only be included in files that actually use them.
+ */
+/*@{*/
 #if defined(__GNUC__) && defined(__i386__) && \
-   !(__GNUC__ == 2 && __GNUC_MINOR__ == 95 /* broken gcc version */)
+   !(__GNUC__ == 2 && __GNUC_MINOR__ <= 95 /* broken gcc version */)
 static __inline__ Uint16 SDL_Swap16(Uint16 x)
 {
 	__asm__("xchgb %b0,%h0" : "=q" (x) :  "0" (x));
@@ -88,7 +98,8 @@ static __inline__ Uint16 SDL_Swap16(Uint16 x) {
 }
 #endif
 
-#if defined(__GNUC__) && defined(__i386__)
+#if defined(__GNUC__) && defined(__i386__) && \
+   !(__GNUC__ == 2 && __GNUC_MINOR__ <= 95 /* broken gcc version */)
 static __inline__ Uint32 SDL_Swap32(Uint32 x)
 {
 	__asm__("bswap %0" : "=r" (x) : "0" (x));
@@ -123,7 +134,8 @@ static __inline__ Uint32 SDL_Swap32(Uint32 x) {
 #endif
 
 #ifdef SDL_HAS_64BIT_TYPE
-#if defined(__GNUC__) && defined(__i386__)
+#if defined(__GNUC__) && defined(__i386__) && \
+   !(__GNUC__ == 2 && __GNUC_MINOR__ <= 95 /* broken gcc version */)
 static __inline__ Uint64 SDL_Swap64(Uint64 x)
 {
 	union { 
@@ -148,9 +160,9 @@ static __inline__ Uint64 SDL_Swap64(Uint64 x)
 	Uint32 hi, lo;
 
 	/* Separate into high and low 32-bit values and swap them */
-	lo = (Uint32)(x&0xFFFFFFFF);
+	lo = SDL_static_cast(Uint32, x & 0xFFFFFFFF);
 	x >>= 32;
-	hi = (Uint32)(x&0xFFFFFFFF);
+	hi = SDL_static_cast(Uint32, x & 0xFFFFFFFF);
 	x = SDL_Swap32(lo);
 	x <<= 32;
 	x |= SDL_Swap32(hi);
@@ -159,14 +171,18 @@ static __inline__ Uint64 SDL_Swap64(Uint64 x)
 #endif
 #else
 /* This is mainly to keep compilers from complaining in SDL code.
-   If there is no real 64-bit datatype, then compilers will complain about
-   the fake 64-bit datatype that SDL provides when it compiles user code.
-*/
+ * If there is no real 64-bit datatype, then compilers will complain about
+ * the fake 64-bit datatype that SDL provides when it compiles user code.
+ */
 #define SDL_Swap64(X)	(X)
 #endif /* SDL_HAS_64BIT_TYPE */
+/*@}*/
 
-
-/* Byteswap item from the specified endianness to the native endianness */
+/**
+ *  @name SDL_SwapLE and SDL_SwapBE Functions
+ *  Byteswap item from the specified endianness to the native endianness
+ */
+/*@{*/
 #if SDL_BYTEORDER == SDL_LIL_ENDIAN
 #define SDL_SwapLE16(X)	(X)
 #define SDL_SwapLE32(X)	(X)
@@ -182,6 +198,7 @@ static __inline__ Uint64 SDL_Swap64(Uint64 x)
 #define SDL_SwapBE32(X)	(X)
 #define SDL_SwapBE64(X)	(X)
 #endif
+/*@}*/
 
 /* Ends C function definitions when using C++ */
 #ifdef __cplusplus
-- 
cgit