forked from len0rd/rockbox
Port of Duke Nukem 3D
This ports Fabien Sanglard's Chocolate Duke to run on a version of SDL for Rockbox. Change-Id: I8f2c4c78af19de10c1633ed7bb7a997b43256dd9
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994 changed files with 336924 additions and 15 deletions
73
apps/plugins/sdl/src/timer/nds/SDL_systimer.c
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apps/plugins/sdl/src/timer/nds/SDL_systimer.c
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/*
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SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2012 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Sam Lantinga
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slouken@libsdl.org
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*/
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#include "SDL_config.h"
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#include "SDL_thread.h"
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#include "SDL_timer.h"
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#include "SDL_error.h"
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#include "../SDL_timer_c.h"
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#include <nds.h>
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#define timers2ms(tlow,thigh)(tlow | (thigh<<16)) >> 5
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void SDL_StartTicks(void)
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{
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TIMER0_DATA=0;
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TIMER1_DATA=0;
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TIMER0_CR=TIMER_ENABLE|TIMER_DIV_1024;
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TIMER1_CR=TIMER_ENABLE|TIMER_CASCADE;
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}
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Uint32 SDL_GetTicks(void)
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{
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return timers2ms(TIMER0_DATA, TIMER1_DATA);
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}
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void SDL_Delay(Uint32 ms)
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{
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Uint32 now;
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now=timers2ms(TIMER0_DATA, TIMER1_DATA);
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while((Uint32)timers2ms(TIMER0_DATA, TIMER1_DATA)<now+ms);
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}
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/* This is only called if the event thread is not running */
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int SDL_SYS_TimerInit(void)
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{
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return 0;
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}
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void SDL_SYS_TimerQuit(void)
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{
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}
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int SDL_SYS_StartTimer(void)
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{
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SDL_SetError("Timers not implemented on NDS");
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return -1;
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}
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void SDL_SYS_StopTimer(void)
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{
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}
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