thirdparty/scummvm
2
0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

SCI: Limit the screen refresh rate to 60fps

Browse source 
svn-id: r49647
This commit is contained in:
Filippos Karapetis 2010-06-14 08:36:52 +00:00
parent 58487da20b
commit cfdbfaa28e
4 changed files with 11 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

1
engines/sci/engine/savegame.cpp
View file

@ -877,6 +877,7 @@ void gamestate_restore(EngineState *s, Common::SeekableReadStream *fh) {
// Time state:
s->lastWaitTime = g_system->getMillis();
s->gameStartTime = g_system->getMillis();
s->_screenUpdateTime = g_system->getMillis();
#ifdef USE_OLD_MUSIC_FUNCTIONS
s->_sound._it = NULL;

1
engines/sci/engine/state.h
View file

@ -113,6 +113,7 @@ public:
uint32 gameStartTime; /**< The time at which the interpreter was started */
uint32 lastWaitTime; /**< The last time the game invoked Wait() */
uint32 _screenUpdateTime; /**< The last time the game updated the screen */
void wait(int16 ticks);

8
engines/sci/event.cpp
View file

@ -319,8 +319,14 @@ sciEvent EventManager::get(unsigned int mask) {
//sci_event_t error_event = { SCI_EVT_ERROR, 0, 0, 0 };
sciEvent event = { 0, 0, 0, 0 };
// Update the screen here, since it's called very often
// Update the screen here, since it's called very often.
// Throttle the screen update rate to 60fps.
uint32 curTime = g_system->getMillis();
uint32 duration = curTime - g_sci->getEngineState()->_screenUpdateTime;
if (duration >= 1000 / 60) {
g_system->updateScreen();
g_sci->getEngineState()->_screenUpdateTime = g_system->getMillis();
}
// Get all queued events from graphics driver
do {

2
engines/sci/sci.cpp
View file

@ -325,7 +325,7 @@ bool SciEngine::initGame() {
_vocabulary->parser_base = make_reg(_gamestate->_segMan->getSysStringsSegment(), SYS_STRING_PARSER_BASE);
}
_gamestate->gameStartTime = _gamestate->lastWaitTime = g_system->getMillis();
_gamestate->gameStartTime = _gamestate->lastWaitTime = _gamestate->_screenUpdateTime = g_system->getMillis();
srand(g_system->getMillis()); // Initialize random number generator