19682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* 29682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL - Simple DirectMedia Layer 39682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Copyright (C) 1997-2012 Sam Lantinga 49682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 59682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall This library is free software; you can redistribute it and/or 69682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall modify it under the terms of the GNU Lesser General Public 79682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall License as published by the Free Software Foundation; either 89682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall version 2.1 of the License, or (at your option) any later version. 99682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 109682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall This library is distributed in the hope that it will be useful, 119682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall but WITHOUT ANY WARRANTY; without even the implied warranty of 129682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 139682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Lesser General Public License for more details. 149682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 159682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall You should have received a copy of the GNU Lesser General Public 169682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall License along with this library; if not, write to the Free Software 179682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 189682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 199682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Sam Lantinga 209682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall slouken@libsdl.org 219682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall*/ 229682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include "SDL_config.h" 239682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 249682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#ifdef SDL_TIMER_WINCE 259682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 269682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define WIN32_LEAN_AND_MEAN 279682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include <windows.h> 289682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include <mmsystem.h> 299682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 309682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include "SDL_thread.h" 319682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include "SDL_timer.h" 329682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include "../SDL_timer_c.h" 339682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 349682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallstatic Uint64 start_date; 359682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallstatic Uint64 start_ticks; 369682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 379682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallstatic Uint64 wce_ticks(void) 389682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 399682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return((Uint64)GetTickCount()); 409682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 419682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 429682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallstatic Uint64 wce_date(void) 439682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 449682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall union 459682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { 469682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall FILETIME ftime; 479682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Uint64 itime; 489682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } ftime; 499682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SYSTEMTIME stime; 509682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 519682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall GetSystemTime(&stime); 529682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SystemTimeToFileTime(&stime,&ftime.ftime); 539682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall ftime.itime/=10000; // Convert 100ns intervals to 1ms intervals 549682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall // Remove ms portion, which can't be relied on 559682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall ftime.itime -= (ftime.itime % 1000); 569682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return(ftime.itime); 579682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 589682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 599682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallstatic Sint32 wce_rel_ticks(void) 609682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 619682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return((Sint32)(wce_ticks()-start_ticks)); 629682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 639682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 649682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallstatic Sint32 wce_rel_date(void) 659682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 669682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return((Sint32)(wce_date()-start_date)); 679682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 689682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 699682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* Return time in ms relative to when SDL was started */ 709682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse HallUint32 SDL_GetTicks() 719682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 729682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Sint32 offset=wce_rel_date()-wce_rel_ticks(); 739682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if((offset < -1000) || (offset > 1000)) 749682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { 759682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall// fprintf(stderr,"Time desync(%+d), resyncing\n",offset/1000); 769682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall start_ticks-=offset; 779682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 789682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 799682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return((Uint32)wce_rel_ticks()); 809682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 819682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 829682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* Give up approx. givem milliseconds to the OS. */ 839682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallvoid SDL_Delay(Uint32 ms) 849682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 859682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Sleep(ms); 869682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 879682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 889682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* Recard start-time of application for reference */ 899682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallvoid SDL_StartTicks(void) 909682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 919682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall start_date=wce_date(); 929682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall start_ticks=wce_ticks(); 939682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 949682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 959682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallstatic UINT WIN_timer; 969682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 979682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#if ( _WIN32_WCE <= 420 ) 989682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 999682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallstatic HANDLE timersThread = 0; 1009682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallstatic HANDLE timersQuitEvent = 0; 1019682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1029682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse HallDWORD TimersThreadProc(void *data) 1039682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 1049682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall while(WaitForSingleObject(timersQuitEvent, 10) == WAIT_TIMEOUT) 1059682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { 1069682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_ThreadedTimerCheck(); 1079682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1089682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return 0; 1099682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 1109682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1119682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallint SDL_SYS_TimerInit(void) 1129682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 1139682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall // create a thread to process a threaded timers 1149682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall // SetTimer does not suit the needs because 1159682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall // TimerCallbackProc will be called only when WM_TIMER occured 1169682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1179682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall timersQuitEvent = CreateEvent(0, TRUE, FALSE, 0); 1189682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if( !timersQuitEvent ) 1199682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { 1209682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_SetError("Cannot create event for timers thread"); 1219682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return -1; 1229682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1239682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall timersThread = CreateThread(NULL, 0, TimersThreadProc, 0, 0, 0); 1249682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if( !timersThread ) 1259682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { 1269682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_SetError("Cannot create timers thread, check amount of RAM available"); 1279682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return -1; 1289682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1299682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SetThreadPriority(timersThread, THREAD_PRIORITY_HIGHEST); 1309682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1319682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return(SDL_SetTimerThreaded(1)); 1329682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 1339682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1349682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallvoid SDL_SYS_TimerQuit(void) 1359682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 1369682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SetEvent(timersQuitEvent); 1379682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if( WaitForSingleObject(timersThread, 2000) == WAIT_TIMEOUT ) 1389682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall TerminateThread(timersThread, 0); 1399682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall CloseHandle(timersThread); 1409682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall CloseHandle(timersQuitEvent); 1419682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return; 1429682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 1439682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1449682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#else 1459682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1469682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#pragma comment(lib, "mmtimer.lib") 1479682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1489682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* Data to handle a single periodic alarm */ 1499682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallstatic UINT timerID = 0; 1509682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1519682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallstatic void CALLBACK HandleAlarm(UINT uID, UINT uMsg, DWORD dwUser, 1529682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall DWORD dw1, DWORD dw2) 1539682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 1549682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_ThreadedTimerCheck(); 1559682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 1569682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1579682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1589682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallint SDL_SYS_TimerInit(void) 1599682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 1609682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall MMRESULT result; 1619682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1629682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall /* Set timer resolution */ 1639682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall result = timeBeginPeriod(TIMER_RESOLUTION); 1649682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( result != TIMERR_NOERROR ) { 1659682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_SetError("Warning: Can't set %d ms timer resolution", 1669682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall TIMER_RESOLUTION); 1679682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1689682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall /* Allow 10 ms of drift so we don't chew on CPU */ 1699682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall timerID = timeSetEvent(TIMER_RESOLUTION,1,HandleAlarm,0,TIME_PERIODIC); 1709682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( ! timerID ) { 1719682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_SetError("timeSetEvent() failed"); 1729682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return(-1); 1739682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1749682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return(SDL_SetTimerThreaded(1)); 1759682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 1769682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1779682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallvoid SDL_SYS_TimerQuit(void) 1789682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 1799682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( timerID ) { 1809682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall timeKillEvent(timerID); 1819682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1829682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall timeEndPeriod(TIMER_RESOLUTION); 1839682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 1849682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1859682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#endif 1869682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1879682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallint SDL_SYS_StartTimer(void) 1889682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 1899682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_SetError("Internal logic error: WinCE uses threaded timer"); 1909682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return(-1); 1919682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 1929682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1939682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallvoid SDL_SYS_StopTimer(void) 1949682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 1959682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return; 1969682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 1979682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1989682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#endif /* SDL_TIMER_WINCE */ 199