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#if defined(SDL_TIMER_DUMMY) || defined(SDL_TIMERS_DISABLED) 259682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 269682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include "SDL_timer.h" 279682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include "../SDL_timer_c.h" 289682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 299682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallvoid SDL_StartTicks(void) 309682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 319682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 329682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 339682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse HallUint32 SDL_GetTicks (void) 349682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 359682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_Unsupported(); 369682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return 0; 379682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 389682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 399682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallvoid SDL_Delay (Uint32 ms) 409682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 419682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_Unsupported(); 429682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 439682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 449682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include "SDL_thread.h" 459682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 469682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* Data to handle a single periodic alarm */ 479682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallstatic int timer_alive = 0; 489682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallstatic SDL_Thread *timer = NULL; 499682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 509682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallstatic int RunTimer(void *unused) 519682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 529682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall while ( timer_alive ) { 539682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( SDL_timer_running ) { 549682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_ThreadedTimerCheck(); 559682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 569682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_Delay(1); 579682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 589682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return(0); 599682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 609682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 619682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* This is only called if the event thread is not running */ 629682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallint SDL_SYS_TimerInit(void) 639682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 649682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall timer_alive = 1; 659682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall timer = SDL_CreateThread(RunTimer, NULL); 669682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( timer == NULL ) 679682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return(-1); 689682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return(SDL_SetTimerThreaded(1)); 699682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 709682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 719682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallvoid SDL_SYS_TimerQuit(void) 729682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 739682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall timer_alive = 0; 749682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( timer ) { 759682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_WaitThread(timer, NULL); 769682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall timer = NULL; 779682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 789682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 799682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 809682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallint SDL_SYS_StartTimer(void) 819682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 829682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_SetError("Internal logic error: threaded timer in use"); 839682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return(-1); 849682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 859682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 869682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallvoid SDL_SYS_StopTimer(void) 879682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 889682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return; 899682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 909682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 919682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#endif /* SDL_TIMER_DUMMY || SDL_TIMERS_DISABLED */ 92