diff -r ffa851df0825 -r 2fb8b9db1c86 symbian-qemu-0.9.1-12/libsdl-trunk/src/timer/mint/SDL_systimer.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/symbian-qemu-0.9.1-12/libsdl-trunk/src/timer/mint/SDL_systimer.c Fri Jul 31 15:01:17 2009 +0100 @@ -0,0 +1,147 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997-2006 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 +*/ +#include "SDL_config.h" + +#ifdef SDL_TIMER_MINT + +/* + * TOS/MiNT timer driver + * based on vbl vector + * + * Patrice Mandin + */ + +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include "SDL_timer.h" +#include "../SDL_timer_c.h" +#include "SDL_thread.h" + +#include "SDL_vbltimer_s.h" + +/* from audio/mint */ +void SDL_MintAudio_CheckFpu(void); + +/* The first ticks value of the application */ +static Uint32 start; +static SDL_bool read_hz200_from_vbl = SDL_FALSE; +static int mint_present; /* can we use Syield() ? */ + +void SDL_StartTicks(void) +{ + void *old_stack; + unsigned long dummy; + + /* Set first ticks value */ + old_stack = (void *)Super(0); + start = *((volatile long *)_hz_200); + Super(old_stack); + + start *= 5; /* One _hz_200 tic is 5ms */ + + mint_present = (Getcookie(C_MiNT, &dummy) == C_FOUND); +} + +Uint32 SDL_GetTicks (void) +{ + Uint32 now = start; + + if (read_hz200_from_vbl) { + now = SDL_Atari_hz200; + } else { + void *old_stack = (void *)Super(0); + now = *((volatile long *)_hz_200); + Super(old_stack); + } + + return((now*5)-start); +} + +void SDL_Delay (Uint32 ms) +{ + Uint32 now; + + now = SDL_GetTicks(); + while ((SDL_GetTicks()-now)