diff options
Diffstat (limited to 'src/qcommon/common.c')
| -rw-r--r-- | src/qcommon/common.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/src/qcommon/common.c b/src/qcommon/common.c index 069eb922..c5f49ace 100644 --- a/src/qcommon/common.c +++ b/src/qcommon/common.c @@ -87,6 +87,14 @@ cvar_t *com_abnormalExit; cvar_t *com_homepath; cvar_t *com_busyWait; +#if defined(idx64) + void (*Q_VMftol)(void); +#elif defined(id386) + long (QDECL *Q_ftol)(float f); + void (QDECL *Q_VMftol)(void); + void (QDECL *Q_SnapVector)(vec3_t vec); +#endif + // com_speeds times int time_game; int time_frontend; // renderer frontend time @@ -2444,6 +2452,53 @@ static void Com_DetectAltivec(void) /* ================= +Com_DetectSSE +Find out whether we have SSE support for Q_ftol function +================= +*/ + +#if defined(id386) || defined(idx64) + +static void Com_DetectSSE(void) +{ +#ifndef idx64 + cpuFeatures_t feat; + + feat = Sys_GetProcessorFeatures(); + + if(feat & CF_SSE) + { + if(feat & CF_SSE2) + Q_SnapVector = qsnapvectorsse; + else + Q_SnapVector = qsnapvectorx87; + + Q_ftol = qftolsse; +#endif + Q_VMftol = qvmftolsse; + + Com_Printf("Have SSE support\n"); +#ifndef idx64 + } + else + { + Q_ftol = qftolx87; + Q_VMftol = qvmftolx87; + Q_SnapVector = qsnapvectorx87; + + Com_Printf("No SSE support on this machine\n"); + } +#endif +} + +#else + +#define Com_DetectSSE() + +#endif + +/* +================= Com_InitRand Seed the random number generator, if possible with an OS supplied random seed. ================= @@ -2492,6 +2547,8 @@ void Com_Init( char *commandLine ) { // Swap_Init (); Cbuf_Init (); + Com_DetectSSE(); + // override anything from the config files with command line args Com_StartupVariable( NULL ); |