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Enable SSE detection on OS/2.

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patch by KO Myung-Hun, komh chollian net


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@26093 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
diego 2008-02-24 18:09:28 +00:00
parent b824af715e
commit 0044fb7a38
1 changed files with 35 additions and 1 deletions
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36
cpudetect.c
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@ -33,6 +33,11 @@ CpuCaps gCpuCaps;
#include <windows.h>
#endif
#ifdef __OS2__
#define INCL_DOS
#include <os2.h>
#endif
#ifdef __AMIGAOS4__
#include <proto/exec.h>
#endif
@ -183,7 +188,8 @@ void GetCpuCaps( CpuCaps *caps)
/* FIXME: Does SSE2 need more OS support, too? */
#if defined(__linux__) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__) \
|| defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
|| defined(__APPLE__) || defined(__CYGWIN__) || defined(__MINGW32__)
|| defined(__APPLE__) || defined(__CYGWIN__) || defined(__MINGW32__) \
|| defined(__OS2__)
if (caps->hasSSE)
check_os_katmai_support();
if (!caps->hasSSE)
@ -321,6 +327,24 @@ LONG CALLBACK win32_sig_handler_sse(EXCEPTION_POINTERS* ep)
}
#endif /* WIN32 */
#ifdef __OS2__
ULONG _System os2_sig_handler_sse( PEXCEPTIONREPORTRECORD p1,
PEXCEPTIONREGISTRATIONRECORD p2,
PCONTEXTRECORD p3,
PVOID p4 )
{
if(p1->ExceptionNum == XCPT_ILLEGAL_INSTRUCTION){
mp_msg(MSGT_CPUDETECT, MSGL_V, "SIGILL, ");
p3->ctx_RegEip += 3;
gCpuCaps.hasSSE = 0;
return XCPT_CONTINUE_EXECUTION;
}
return XCPT_CONTINUE_SEARCH;
}
#endif
/* If we're running on a processor that can do SSE, let's see if we
* are allowed to or not. This will catch 2.4.0 or later kernels that
* haven't been configured for a Pentium III but are running on one,
@ -391,6 +415,16 @@ static void check_os_katmai_support( void )
if ( gCpuCaps.hasSSE ) mp_msg(MSGT_CPUDETECT,MSGL_V, "yes.\n" );
else mp_msg(MSGT_CPUDETECT,MSGL_V, "no!\n" );
}
#elif defined(__OS2__)
EXCEPTIONREGISTRATIONRECORD RegRec = { 0, &os2_sig_handler_sse };
if ( gCpuCaps.hasSSE ) {
mp_msg(MSGT_CPUDETECT,MSGL_V, "Testing OS support for SSE... " );
DosSetExceptionHandler( &RegRec );
__asm __volatile ("xorps %xmm0, %xmm0");
DosUnsetExceptionHandler( &RegRec );
if ( gCpuCaps.hasSSE ) mp_msg(MSGT_CPUDETECT,MSGL_V, "yes.\n" );
else mp_msg(MSGT_CPUDETECT,MSGL_V, "no!\n" );
}
#elif defined(__linux__)
#if defined(_POSIX_SOURCE)
struct sigaction saved_sigill;