scummvm/engines/ags/engine/ac/timer.h
Paul Gilbert 8e3207b38b AGS: Moved frame wait and user input check outside of VideoPlayer
From upstream c5f815729792837b6b4a02c013c7c554942792d9
Only partially implemented, since ScummVM has it's own video player code
2022-04-12 22:27:57 -07:00

51 lines
1.8 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef AGS_ENGINE_AC_TIMER_H
#define AGS_ENGINE_AC_TIMER_H
#include "ags/lib/std/type_traits.h"
#include "ags/lib/std/chrono.h"
#include "ags/lib/std/xtr1common.h"
namespace AGS3 {
// use high resolution clock only if we know it is monotonic/steady.
// refer to https://stackoverflow.com/a/38253266/84262
using AGS_Clock = std::conditional <
std::chrono::high_resolution_clock::is_steady,
std::chrono::high_resolution_clock, std::chrono::steady_clock
>::type;
// Sleeps for time remaining until the next game frame, updates next frame timestamp
extern void WaitForNextFrame();
// Sets real FPS to the given number of frames per second; pass 1000+ for maxed FPS mode
extern int setTimerFps(int new_fps);
// Tells whether maxed FPS mode is currently set
extern bool isTimerFpsMaxed();
// If more than N frames, just skip all, start a fresh.
extern void skipMissedTicks();
} // namespace AGS3
#endif