Mercurial > sdl-ios-xcode
view include/SDL_cpuinfo.h @ 4431:d660ca4f7b1f SDL-1.2
Fixed bug 944
Tatu Kilappa 2010-02-11 12:13:20 PST
When compiling with -Wconversion, gcc complains about a cast in SDL_endian.h
that might change the result as we are casting from an int into an Uint16. This
is of course not visible unless we are on a non-x86 platform where the
assembler is not available.
While it's not really an error, the warning is really annoying. To fix, change
SDL_endian.h line 87 to:
return(Uint16)((x<<8)|(x>>8));
Thank you.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Tue, 13 Apr 2010 21:46:10 -0700 |
parents | 4c4113c2162c |
children |
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/* 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_cpuinfo.h * CPU feature detection for SDL */ #ifndef _SDL_cpuinfo_h #define _SDL_cpuinfo_h #include "SDL_stdinc.h" #include "begin_code.h" /* Set up for C function definitions, even when using C++ */ #ifdef __cplusplus extern "C" { #endif /** This function returns true if the CPU has the RDTSC instruction */ extern DECLSPEC SDL_bool SDLCALL SDL_HasRDTSC(void); /** This function returns true if the CPU has MMX features */ extern DECLSPEC SDL_bool SDLCALL SDL_HasMMX(void); /** This function returns true if the CPU has MMX Ext. features */ extern DECLSPEC SDL_bool SDLCALL SDL_HasMMXExt(void); /** This function returns true if the CPU has 3DNow features */ extern DECLSPEC SDL_bool SDLCALL SDL_Has3DNow(void); /** This function returns true if the CPU has 3DNow! Ext. features */ extern DECLSPEC SDL_bool SDLCALL SDL_Has3DNowExt(void); /** This function returns true if the CPU has SSE features */ extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE(void); /** This function returns true if the CPU has SSE2 features */ extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE2(void); /** This function returns true if the CPU has AltiVec features */ extern DECLSPEC SDL_bool SDLCALL SDL_HasAltiVec(void); /* Ends C function definitions when using C++ */ #ifdef __cplusplus } #endif #include "close_code.h" #endif /* _SDL_cpuinfo_h */