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https://github.com/yawut/SDL.git
synced 2026-09-07 16:45:57 -05:00
Removed AmigaOS code for 1.3 branch.
This commit is contained in:
Ryan C. Gordon
@@ -1,268 +0,0 @@
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/*
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SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2006 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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#ifdef SDL_TIMER_AMIGA
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#include <stdio.h>
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#include <time.h>
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#include <signal.h>
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#include <unistd.h>
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#include <string.h>
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#include <errno.h>
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#include <exec/types.h>
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#ifdef __SASC
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#include <proto/dos.h>
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#include <clib/graphics_protos.h>
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#include <pragmas/graphics.h>
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#include <clib/exec_protos.h>
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#include <pragmas/exec.h>
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#elif defined(STORMC4_WOS)
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#include <proto/dos.h>
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#include <proto/exec.h>
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#include <proto/graphics.h>
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#else
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#include <inline/dos.h>
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#include <inline/exec.h>
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#include <inline/graphics.h>
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#endif
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#include "mydebug.h"
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extern struct DosLibrary *DOSBase;
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extern struct ExecBase *SysBase;
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static struct GfxBase *GfxBase;
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#include "SDL_timer.h"
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#include "../SDL_timer_c.h"
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/* The first ticks value of the application */
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#if !defined(__PPC__) || defined(STORMC4_WOS) || defined(MORPHOS)
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static clock_t start;
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void
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SDL_StartTicks(void)
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{
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/* Set first ticks value */
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start = clock();
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}
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Uint32
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SDL_GetTicks(void)
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{
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clock_t ticks;
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ticks = clock() - start;
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#ifdef __SASC
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// CLOCKS_PER_SEC == 1000 !
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return (ticks);
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#else
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// CLOCKS_PER_SEC != 1000 !
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return ticks * (1000 / CLOCKS_PER_SEC);
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#endif
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}
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void
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SDL_Delay(Uint32 ms)
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{
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// Do a busy wait if time is less than 50ms
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if (ms < 50) {
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clock_t to_wait = clock();
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#ifndef __SASC
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ms *= (CLOCKS_PER_SEC / 1000);
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#endif
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to_wait += ms;
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while (clock() < to_wait);
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} else {
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Delay(ms / 20);
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}
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}
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#else
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ULONG MY_CLOCKS_PER_SEC;
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void PPC_TimerInit(void);
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APTR MyTimer;
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ULONG start[2];
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void
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SDL_StartTicks(void)
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{
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/* Set first ticks value */
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if (!MyTimer)
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PPC_TimerInit();
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PPCGetTimerObject(MyTimer, PPCTIMERTAG_CURRENTTICKS, start);
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start[1] >>= 10;
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start[1] |= ((result[0] & 0x3ff) << 22);
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start[0] >>= 10;
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}
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Uint32
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SDL_GetTicks(void)
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{
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ULONG result[2];
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PPCGetTimerObject(MyTimer, PPCTIMERTAG_CURRENTTICKS, result);
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// PPCAsr64p(result,10);
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// Non va, la emulo:
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result[1] >>= 10;
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result[1] |= ((result[0] & 0x3ff) << 22);
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// Non mi interessa piu' result[0]
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return result[1] * 1000 / MY_CLOCKS_PER_SEC;
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}
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void
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SDL_Delay(Uint32 ms)
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{
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// Do a busy wait if time is less than 50ms
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if (ms < 50) {
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ULONG to_wait[2], actual[2];
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PPCGetTimerObject(MyTimer, PPCTIMERTAG_CURRENTTICKS, result);
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actual[1] = 0;
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to_wait[1] += ms * 1000 / MY_CLOCKS_PER_SEC;
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while (actual[1] < to_wait[1]) {
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PPCGetTimerObject(MyTimer, PPCTIMERTAG_CURRENTTICKS, actual);
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}
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} else {
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Delay(ms / 50);
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}
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}
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void
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PPC_TimerInit(void)
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{
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struct TagItem tags[] = {
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PPCTIMERTAG_CPU, TRUE,
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TAG_DONE, 0
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};
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if (MyTimer = PPCCreateTimerObject(tags)) {
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ULONG result[2];
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PPCGetTimerObject(MyTimer, PPCTIMERTAG_TICKSPERSEC, result);
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D(bug("Timer inizializzato, TPS: %lu - %lu\n", result[0], result[1]));
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// PPCAsr64p(result,10);
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result[1] >>= 10;
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result[1] |= ((result[0] & 0x3ff) << 22);
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result[0] >>= 10;
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D(bug("Shiftato TPS: %lu - %lu\n", result[0], result[1]));
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MY_CLOCKS_PER_SEC = result[1];
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PPCGetTimerObject(MyTimer, PPCTIMERTAG_CURRENTTICKS, result);
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D(bug("Current ticks: %lu - %lu\n", result[0], result[1]));
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result[1] >>= 10;
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result[1] |= ((result[0] & 0x3ff) << 22);
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result[0] >>= 10;
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// PPCAsr64p(result,10);
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D(bug("Shiftato: %lu - %lu\n", result[0], result[1]));
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} else {
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D(bug("Errore nell'inizializzazione del timer!\n"));
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}
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}
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#endif
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#include "SDL_thread.h"
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/* Data to handle a single periodic alarm */
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static int timer_alive = 0;
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static SDL_Thread *timer_thread = NULL;
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static int
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RunTimer(void *unused)
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{
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D(bug("SYSTimer: Entering RunTimer loop..."));
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if (GfxBase == NULL)
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GfxBase = (struct GfxBase *) OpenLibrary("graphics.library", 37);
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while (timer_alive) {
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if (SDL_timer_running) {
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SDL_ThreadedTimerCheck();
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}
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if (GfxBase)
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WaitTOF(); // Check the timer every fifth of seconds. Was SDL_Delay(1)->BusyWait!
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else
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Delay(1);
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}
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D(bug("SYSTimer: EXITING RunTimer loop..."));
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return (0);
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}
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/* This is only called if the event thread is not running */
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int
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SDL_SYS_TimerInit(void)
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{
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D(bug("Creating thread for the timer (NOITIMER)...\n"));
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timer_alive = 1;
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timer_thread = SDL_CreateThread(RunTimer, NULL);
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if (timer_thread == NULL) {
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D(bug("Creazione del thread fallita...\n"));
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return (-1);
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}
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return (SDL_SetTimerThreaded(1));
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}
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void
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SDL_SYS_TimerQuit(void)
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{
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timer_alive = 0;
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if (timer_thread) {
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SDL_WaitThread(timer_thread, NULL);
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timer_thread = NULL;
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}
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}
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int
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SDL_SYS_StartTimer(void)
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{
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SDL_SetError("Internal logic error: AmigaOS uses threaded timer");
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return (-1);
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}
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void
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SDL_SYS_StopTimer(void)
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{
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return;
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}
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#endif /* SDL_TIMER_AMIGA */
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/* vi: set ts=4 sw=4 expandtab: */
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