forked from len0rd/rockbox
a855d62025
This ports Fabien Sanglard's Chocolate Duke to run on a version of SDL for Rockbox. Change-Id: I8f2c4c78af19de10c1633ed7bb7a997b43256dd9
73 lines
1.7 KiB
C
73 lines
1.7 KiB
C
/*
|
|
SDL - Simple DirectMedia Layer
|
|
Copyright (C) 1997-2012 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"
|
|
|
|
#include "SDL_thread.h"
|
|
#include "SDL_timer.h"
|
|
#include "SDL_error.h"
|
|
#include "../SDL_timer_c.h"
|
|
|
|
#include <nds.h>
|
|
|
|
#define timers2ms(tlow,thigh)(tlow | (thigh<<16)) >> 5
|
|
|
|
|
|
void SDL_StartTicks(void)
|
|
{
|
|
TIMER0_DATA=0;
|
|
TIMER1_DATA=0;
|
|
TIMER0_CR=TIMER_ENABLE|TIMER_DIV_1024;
|
|
TIMER1_CR=TIMER_ENABLE|TIMER_CASCADE;
|
|
}
|
|
|
|
Uint32 SDL_GetTicks(void)
|
|
{
|
|
return timers2ms(TIMER0_DATA, TIMER1_DATA);
|
|
}
|
|
|
|
void SDL_Delay(Uint32 ms)
|
|
{
|
|
Uint32 now;
|
|
now=timers2ms(TIMER0_DATA, TIMER1_DATA);
|
|
while((Uint32)timers2ms(TIMER0_DATA, TIMER1_DATA)<now+ms);
|
|
|
|
}
|
|
|
|
/* This is only called if the event thread is not running */
|
|
int SDL_SYS_TimerInit(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
void SDL_SYS_TimerQuit(void)
|
|
{
|
|
}
|
|
|
|
int SDL_SYS_StartTimer(void)
|
|
{
|
|
SDL_SetError("Timers not implemented on NDS");
|
|
return -1;
|
|
}
|
|
|
|
void SDL_SYS_StopTimer(void)
|
|
{
|
|
}
|