mirror of
https://github.com/libretro/scummvm.git
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78 lines
2.1 KiB
C++
78 lines
2.1 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program 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
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#include "common/timer.h"
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#include "engines/engine.h"
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#include "sci/include/sfx_timer.h"
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namespace Sci {
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#define FREQ 60
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#define DELAY (1000000 / FREQ)
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typedef void (*scummvm_timer_callback_t)(void *);
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static scummvm_timer_callback_t scummvm_timer_callback = NULL;
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static void *scummvm_timer_callback_data = NULL;
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extern ::Engine *g_engine;
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void scummvm_timer_update_internal(void *ptr) {
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if (scummvm_timer_callback)
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scummvm_timer_callback(scummvm_timer_callback_data);
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}
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int scummvm_timer_start(void (*func)(void *), void *data) {
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if (scummvm_timer_callback) {
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fprintf(stderr,
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"Error: Attempt to initialize gametick timer more than once\n");
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return SFX_ERROR;
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}
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if (!func) {
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fprintf(stderr,
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"Error: Attempt to initialize gametick timer w/o callback\n");
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return SFX_ERROR;
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}
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scummvm_timer_callback = func;
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scummvm_timer_callback_data = data;
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::g_engine->getTimerManager()->installTimerProc(&scummvm_timer_update_internal, DELAY, NULL);
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return SFX_OK;
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}
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int scummvm_timer_stop() {
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scummvm_timer_callback = NULL;
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return SFX_OK;
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}
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sfx_timer_t sfx_timer_scummvm = {
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DELAY / 1000,
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&scummvm_timer_start,
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&scummvm_timer_stop
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};
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} // End of namespace Sci
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