Initial import.

1 files changed, 209 insertions, 0 deletions

diff --git a/src/SDL12/include/SDL_endian.h b/src/SDL12/include/SDL_endian.h
new file mode 100644
index 0000000..f7a2e2f
--- /dev/null
+++ b/src/SDL12/include/SDL_endian.h
@@ -0,0 +1,209 @@
+/*
+    SDL - Simple DirectMedia Layer
+    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
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library 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
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+    Sam Lantinga
+    slouken@libsdl.org
+*/
+
+/**
+ *  @file SDL_endian.h
+ *  Functions for reading and writing endian-specific values
+ */
+
+#ifndef _SDL_endian_h
+#define _SDL_endian_h
+
+#include "SDL_stdinc.h"
+
+/** @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__) || \
+    defined(__m68k__) || defined(mc68000) || defined(_M_M68K) || \
+    (defined(__MIPS__) && defined(__MISPEB__)) || \
+    defined(__ppc__) || defined(__POWERPC__) || defined(_M_PPC) || \
+    defined(__sparc__)
+#define SDL_BYTEORDER	SDL_BIG_ENDIAN
+#else
+#define SDL_BYTEORDER	SDL_LIL_ENDIAN
+#endif
+#endif /* !SDL_BYTEORDER */
+
+
+#include "begin_code.h"
+/* Set up for C function definitions, even when using C++ */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ *  @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 */)
+static __inline__ Uint16 SDL_Swap16(Uint16 x)
+{
+	__asm__("xchgb %b0,%h0" : "=q" (x) :  "0" (x));
+	return x;
+}
+#elif defined(__GNUC__) && defined(__x86_64__)
+static __inline__ Uint16 SDL_Swap16(Uint16 x)
+{
+	__asm__("xchgb %b0,%h0" : "=Q" (x) :  "0" (x));
+	return x;
+}
+#elif defined(__GNUC__) && (defined(__powerpc__) || defined(__ppc__))
+static __inline__ Uint16 SDL_Swap16(Uint16 x)
+{
+	Uint16 result;
+
+	__asm__("rlwimi %0,%2,8,16,23" : "=&r" (result) : "0" (x >> 8), "r" (x));
+	return result;
+}
+#elif defined(__GNUC__) && (defined(__M68000__) || defined(__M68020__))
+static __inline__ Uint16 SDL_Swap16(Uint16 x)
+{
+	__asm__("rorw #8,%0" : "=d" (x) :  "0" (x) : "cc");
+	return x;
+}
+#else
+static __inline__ Uint16 SDL_Swap16(Uint16 x) {
+	return((x<<8)|(x>>8));
+}
+#endif
+
+#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));
+	return x;
+}
+#elif defined(__GNUC__) && defined(__x86_64__)
+static __inline__ Uint32 SDL_Swap32(Uint32 x)
+{
+	__asm__("bswapl %0" : "=r" (x) : "0" (x));
+	return x;
+}
+#elif defined(__GNUC__) && (defined(__powerpc__) || defined(__ppc__))
+static __inline__ Uint32 SDL_Swap32(Uint32 x)
+{
+	Uint32 result;
+
+	__asm__("rlwimi %0,%2,24,16,23" : "=&r" (result) : "0" (x>>24), "r" (x));
+	__asm__("rlwimi %0,%2,8,8,15"   : "=&r" (result) : "0" (result),    "r" (x));
+	__asm__("rlwimi %0,%2,24,0,7"   : "=&r" (result) : "0" (result),    "r" (x));
+	return result;
+}
+#elif defined(__GNUC__) && (defined(__M68000__) || defined(__M68020__))
+static __inline__ Uint32 SDL_Swap32(Uint32 x)
+{
+	__asm__("rorw #8,%0\n\tswap %0\n\trorw #8,%0" : "=d" (x) :  "0" (x) : "cc");
+	return x;
+}
+#else
+static __inline__ Uint32 SDL_Swap32(Uint32 x) {
+	return((x<<24)|((x<<8)&0x00FF0000)|((x>>8)&0x0000FF00)|(x>>24));
+}
+#endif
+
+#ifdef SDL_HAS_64BIT_TYPE
+#if defined(__GNUC__) && defined(__i386__) && \
+   !(__GNUC__ == 2 && __GNUC_MINOR__ <= 95 /* broken gcc version */)
+static __inline__ Uint64 SDL_Swap64(Uint64 x)
+{
+	union { 
+		struct { Uint32 a,b; } s;
+		Uint64 u;
+	} v;
+	v.u = x;
+	__asm__("bswapl %0 ; bswapl %1 ; xchgl %0,%1" 
+	        : "=r" (v.s.a), "=r" (v.s.b) 
+	        : "0" (v.s.a), "1" (v.s.b)); 
+	return v.u;
+}
+#elif defined(__GNUC__) && defined(__x86_64__)
+static __inline__ Uint64 SDL_Swap64(Uint64 x)
+{
+	__asm__("bswapq %0" : "=r" (x) : "0" (x));
+	return x;
+}
+#else
+static __inline__ Uint64 SDL_Swap64(Uint64 x)
+{
+	Uint32 hi, lo;
+
+	/* Separate into high and low 32-bit values and swap them */
+	lo = SDL_static_cast(Uint32, x & 0xFFFFFFFF);
+	x >>= 32;
+	hi = SDL_static_cast(Uint32, x & 0xFFFFFFFF);
+	x = SDL_Swap32(lo);
+	x <<= 32;
+	x |= SDL_Swap32(hi);
+	return(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.
+ */
+#define SDL_Swap64(X)	(X)
+#endif /* SDL_HAS_64BIT_TYPE */
+/*@}*/
+
+/**
+ *  @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)
+#define SDL_SwapLE64(X)	(X)
+#define SDL_SwapBE16(X)	SDL_Swap16(X)
+#define SDL_SwapBE32(X)	SDL_Swap32(X)
+#define SDL_SwapBE64(X)	SDL_Swap64(X)
+#else
+#define SDL_SwapLE16(X)	SDL_Swap16(X)
+#define SDL_SwapLE32(X)	SDL_Swap32(X)
+#define SDL_SwapLE64(X)	SDL_Swap64(X)
+#define SDL_SwapBE16(X)	(X)
+#define SDL_SwapBE32(X)	(X)
+#define SDL_SwapBE64(X)	(X)
+#endif
+/*@}*/
+
+/* Ends C function definitions when using C++ */
+#ifdef __cplusplus
+}
+#endif
+#include "close_code.h"
+
+#endif /* _SDL_endian_h */