diff src/endian/SDL_endian.c @ 0:74212992fb08

Initial revision
author Sam Lantinga <slouken@lokigames.com>
date Thu, 26 Apr 2001 16:45:43 +0000
parents
children e8157fcb3114
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/endian/SDL_endian.c	Thu Apr 26 16:45:43 2001 +0000
@@ -0,0 +1,104 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997, 1998, 1999, 2000, 2001  Sam Lantinga
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 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
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public
+    License along with this library; if not, write to the Free
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+    Sam Lantinga
+    slouken@devolution.com
+*/
+
+#ifdef SAVE_RCSID
+static char rcsid =
+ "@(#) $Id$";
+#endif
+
+/* Functions for dynamically reading and writing endian-specific values */
+
+#include "SDL_endian.h"
+
+Uint16 SDL_ReadLE16 (SDL_RWops *src)
+{
+	Uint16 value;
+
+	SDL_RWread(src, &value, (sizeof value), 1);
+	return(SDL_SwapLE16(value));
+}
+Uint16 SDL_ReadBE16 (SDL_RWops *src)
+{
+	Uint16 value;
+
+	SDL_RWread(src, &value, (sizeof value), 1);
+	return(SDL_SwapBE16(value));
+}
+Uint32 SDL_ReadLE32 (SDL_RWops *src)
+{
+	Uint32 value;
+
+	SDL_RWread(src, &value, (sizeof value), 1);
+	return(SDL_SwapLE32(value));
+}
+Uint32 SDL_ReadBE32 (SDL_RWops *src)
+{
+	Uint32 value;
+
+	SDL_RWread(src, &value, (sizeof value), 1);
+	return(SDL_SwapBE32(value));
+}
+Uint64 SDL_ReadLE64 (SDL_RWops *src)
+{
+	Uint64 value;
+
+	SDL_RWread(src, &value, (sizeof value), 1);
+	return(SDL_SwapLE64(value));
+}
+Uint64 SDL_ReadBE64 (SDL_RWops *src)
+{
+	Uint64 value;
+
+	SDL_RWread(src, &value, (sizeof value), 1);
+	return(SDL_SwapBE64(value));
+}
+
+int SDL_WriteLE16 (SDL_RWops *dst, Uint16 value)
+{
+	value = SDL_SwapLE16(value);
+	return(SDL_RWwrite(dst, &value, (sizeof value), 1));
+}
+int SDL_WriteBE16 (SDL_RWops *dst, Uint16 value)
+{
+	value = SDL_SwapBE16(value);
+	return(SDL_RWwrite(dst, &value, (sizeof value), 1));
+}
+int SDL_WriteLE32 (SDL_RWops *dst, Uint32 value)
+{
+	value = SDL_SwapLE32(value);
+	return(SDL_RWwrite(dst, &value, (sizeof value), 1));
+}
+int SDL_WriteBE32 (SDL_RWops *dst, Uint32 value)
+{
+	value = SDL_SwapBE32(value);
+	return(SDL_RWwrite(dst, &value, (sizeof value), 1));
+}
+int SDL_WriteLE64 (SDL_RWops *dst, Uint64 value)
+{
+	value = SDL_SwapLE64(value);
+	return(SDL_RWwrite(dst, &value, (sizeof value), 1));
+}
+int SDL_WriteBE64 (SDL_RWops *dst, Uint64 value)
+{
+	value = SDL_SwapBE64(value);
+	return(SDL_RWwrite(dst, &value, (sizeof value), 1));
+}