Mercurial > sdl-ios-xcode
view src/timer/nds/SDL_systimer.c @ 2847:7d020441fa81
Don't hardcode RECT for fragment program texture targets.
Now we can generate what a given system needs when compiling the shader.
author | Ryan C. Gordon <icculus@icculus.org> |
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date | Sun, 07 Dec 2008 07:06:34 +0000 |
parents | 204be4fc2726 |
children | 99210400e8b9 |
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/* 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_NDS #include <nds.h> #include <nds/timers.h> #include "SDL_timer.h" #include "../SDL_timer_c.h" #include "../SDL_systimer.h" /* Data to handle a single periodic alarm */ static int timer_alive = 0; static Uint32 timer_ticks; void SDL_StartTicks(void) { if (!timer_alive) { SDL_SYS_TimerInit(); SDL_SYS_StartTimer(); } timer_ticks = 0; } Uint32 SDL_GetTicks(void) { return timer_ticks; } void SDL_Delay(Uint32 ms) { Uint32 start = SDL_GetTicks(); while (timer_alive) { if ((SDL_GetTicks() - start) >= ms) break; } } static int RunTimer(void *unused) { while (timer_alive) { if (SDL_timer_running) { } SDL_Delay(1); } return (0); } void NDS_TimerInterrupt(void) { timer_ticks++; } /* This is only called if the event thread is not running */ int SDL_SYS_TimerInit(void) { timer_alive = 1; timer_ticks = 0; TIMER_CR(3) = TIMER_DIV_1024 | TIMER_IRQ_REQ; TIMER_DATA(3) = TIMER_FREQ_1024(1000); irqSet(IRQ_TIMER3, NDS_TimerInterrupt); irqEnable(IRQ_TIMER3); return 0; } void SDL_SYS_TimerQuit(void) { if (timer_alive) { TIMER_CR(3) = 0; } timer_alive = 0; irqDisable(IRQ_TIMER3); } int SDL_SYS_StartTimer(void) { TIMER_CR(3) |= TIMER_ENABLE; return 0; } void SDL_SYS_StopTimer(void) { TIMER_CR(3) &= ~TIMER_ENABLE; return; } #endif /* SDL_TIMER_NDS */ /* vi: set ts=4 sw=4 expandtab: */