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FFmpegSource2: more portability 

Originally committed to SVN as r2360.
This commit is contained in:
Fredrik Mellbin 2008-09-14 21:01:28 +00:00
parent 27bdad5355
commit b740812951
1 changed files with 6 additions and 5 deletions
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11
FFmpegSource2/utils.cpp
View File

@ -21,24 +21,25 @@
#include "utils.h"
#include <string.h>
#include <errno.h>
#ifdef _MSC_VER
# include <intrin.h>
#else
# include <xmmintrin.h>
#endif
int GetCPUFlags() {
// FIXME Add proper feature detection when msvc isn't used
int Flags = PP_CPU_CAPS_MMX | PP_CPU_CAPS_MMX2;
#ifdef _MSC_VER
Flags = 0;
int CPUInfo[4];
__cpuid(CPUInfo, 0);
int Flags = 0;
// PP and SWS defines have the same values for their defines so this actually works
if (CPUInfo[3] & (1 << 23))
Flags |= PP_CPU_CAPS_MMX;
if (CPUInfo[3] & (1 << 25))
Flags |= PP_CPU_CAPS_MMX2;
#endif
return Flags;
}