diff options
Diffstat (limited to 'backends/audiocd/sdl')
| -rw-r--r-- | backends/audiocd/sdl/sdl-audiocd.cpp | 139 | ||||
| -rw-r--r-- | backends/audiocd/sdl/sdl-audiocd.h | 57 |
2 files changed, 196 insertions, 0 deletions
diff --git a/backends/audiocd/sdl/sdl-audiocd.cpp b/backends/audiocd/sdl/sdl-audiocd.cpp new file mode 100644 index 0000000000..62ab333f54 --- /dev/null +++ b/backends/audiocd/sdl/sdl-audiocd.cpp @@ -0,0 +1,139 @@ +/* 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 2 + * 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, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * $URL$ + * $Id$ + * + */ + +#if defined(SDL_BACKEND) + +// Disable symbol overrides so that we can use system headers. +#define FORBIDDEN_SYMBOL_ALLOW_ALL + +#include "backends/audiocd/sdl/sdl-audiocd.h" + +SdlAudioCDManager::SdlAudioCDManager() + : + _cdrom(0), + _cdTrack(0), + _cdNumLoops(0), + _cdStartFrame(0), + _cdDuration(0), + _cdEndTime(0), + _cdStopTime(0) { + +} + +SdlAudioCDManager::~SdlAudioCDManager() { + if (_cdrom) { + SDL_CDStop(_cdrom); + SDL_CDClose(_cdrom); + } +} + +bool SdlAudioCDManager::openCD(int drive) { + if (SDL_InitSubSystem(SDL_INIT_CDROM) == -1) + _cdrom = NULL; + else { + _cdrom = SDL_CDOpen(drive); + // Did it open? Check if _cdrom is NULL + if (!_cdrom) { + warning("Couldn't open drive: %s", SDL_GetError()); + } else { + _cdNumLoops = 0; + _cdStopTime = 0; + _cdEndTime = 0; + } + } + + return (_cdrom != NULL); +} + +void SdlAudioCDManager::stopCD() { + // Stop CD Audio in 1/10th of a second + _cdStopTime = SDL_GetTicks() + 100; + _cdNumLoops = 0; +} + +void SdlAudioCDManager::playCD(int track, int num_loops, int start_frame, int duration) { + if (!num_loops && !start_frame) + return; + + if (!_cdrom) + return; + + if (duration > 0) + duration += 5; + + _cdTrack = track; + _cdNumLoops = num_loops; + _cdStartFrame = start_frame; + + SDL_CDStatus(_cdrom); + if (start_frame == 0 && duration == 0) + SDL_CDPlayTracks(_cdrom, track, 0, 1, 0); + else + SDL_CDPlayTracks(_cdrom, track, start_frame, 0, duration); + _cdDuration = duration; + _cdStopTime = 0; + _cdEndTime = SDL_GetTicks() + _cdrom->track[track].length * 1000 / CD_FPS; +} + +bool SdlAudioCDManager::pollCD() const { + if (!_cdrom) + return false; + + return (_cdNumLoops != 0 && (SDL_GetTicks() < _cdEndTime || SDL_CDStatus(_cdrom) == CD_PLAYING)); +} + +void SdlAudioCDManager::updateCD() { + if (!_cdrom) + return; + + if (_cdStopTime != 0 && SDL_GetTicks() >= _cdStopTime) { + SDL_CDStop(_cdrom); + _cdNumLoops = 0; + _cdStopTime = 0; + return; + } + + if (_cdNumLoops == 0 || SDL_GetTicks() < _cdEndTime) + return; + + if (_cdNumLoops != 1 && SDL_CDStatus(_cdrom) != CD_STOPPED) { + // Wait another second for it to be done + _cdEndTime += 1000; + return; + } + + if (_cdNumLoops > 0) + _cdNumLoops--; + + if (_cdNumLoops != 0) { + if (_cdStartFrame == 0 && _cdDuration == 0) + SDL_CDPlayTracks(_cdrom, _cdTrack, 0, 1, 0); + else + SDL_CDPlayTracks(_cdrom, _cdTrack, _cdStartFrame, 0, _cdDuration); + _cdEndTime = SDL_GetTicks() + _cdrom->track[_cdTrack].length * 1000 / CD_FPS; + } +} + +#endif diff --git a/backends/audiocd/sdl/sdl-audiocd.h b/backends/audiocd/sdl/sdl-audiocd.h new file mode 100644 index 0000000000..42ac980c51 --- /dev/null +++ b/backends/audiocd/sdl/sdl-audiocd.h @@ -0,0 +1,57 @@ +/* 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 2 + * 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, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * $URL$ + * $Id$ + * + */ + +#ifndef BACKENDS_AUDIOCD_SDL_H +#define BACKENDS_AUDIOCD_SDL_H + +#include "backends/audiocd/default/default-audiocd.h" + +#if defined(__SYMBIAN32__) +#include <esdl\SDL.h> +#else +#include <SDL.h> +#endif + +/** + * The SDL audio cd manager. Implements real audio cd playback. + */ +class SdlAudioCDManager : public DefaultAudioCDManager { +public: + SdlAudioCDManager(); + virtual ~SdlAudioCDManager(); + +protected: + virtual bool openCD(int drive); + virtual void updateCD(); + virtual bool pollCD() const; + virtual void playCD(int track, int num_loops, int start_frame, int duration); + virtual void stopCD(); + + SDL_CD *_cdrom; + int _cdTrack, _cdNumLoops, _cdStartFrame, _cdDuration; + uint32 _cdEndTime, _cdStopTime; +}; + +#endif |