Mercurial > sdl-ios-xcode
changeset 1045:63b8e93a3a52
Release CPU when waiting
| author | Patrice Mandin <patmandin@gmail.com> |
|---|---|
| date | Fri, 01 Apr 2005 15:19:26 +0000 |
| parents | d36ea7925763 |
| children | f09d5edfc7a3 |
| files | src/timer/mint/SDL_systimer.c |
| diffstat | 1 files changed, 11 insertions(+), 2 deletions(-) [+] |
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--- a/src/timer/mint/SDL_systimer.c Wed Mar 30 12:38:03 2005 +0000 +++ b/src/timer/mint/SDL_systimer.c Fri Apr 01 15:19:26 2005 +0000 @@ -39,8 +39,10 @@ #include <string.h> #include <errno.h> +#include <mint/cookie.h> +#include <mint/sysvars.h> #include <mint/osbind.h> -#include <mint/sysvars.h> +#include <mint/mintbind.h> #include "SDL_error.h" #include "SDL_timer.h" @@ -52,10 +54,12 @@ /* The first ticks value of the application */ static Uint32 start; static SDL_bool supervisor; +static int mint_present; /* can we use Syield() ? */ void SDL_StartTicks(void) { void *oldpile; + unsigned long dummy; /* Set first ticks value */ oldpile=(void *)Super(0); @@ -63,12 +67,14 @@ Super(oldpile); start *= 5; /* One _hz_200 tic is 5ms */ + + mint_present = (Getcookie(C_MiNT, &dummy) == C_FOUND); } Uint32 SDL_GetTicks (void) { Uint32 now; - void *oldpile; + void *oldpile=NULL; /* Check if we are in supervisor mode (this is the case when called from SDL_ThreadedTimerCheck, @@ -93,6 +99,9 @@ now = SDL_GetTicks(); while ((SDL_GetTicks()-now)<ms){ + if (mint_present) { + Syield(); + } } }