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8982fff1b7
This in turn enables modifying MidiDriver_MPU401::close() to allow it to be called on a midi driver that has not yet been opened. The specific issue that triggered me to make these changes was a crash-upon-quit in HUGO, caused by it instantiating a midi driver, then encountering an error (missing hugo.dat) *before* having opened the new midi driver; the general cleanup code then tries to close the (not yet opened) midi driver -> kaboom Also fixed some engines which were leaking MidiDriver instances.
58 lines
1.6 KiB
C++
58 lines
1.6 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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*
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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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*
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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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#ifndef SOUND_NULL_H
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#define SOUND_NULL_H
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#include "audio/musicplugin.h"
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#include "audio/mpu401.h"
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#include "common/translation.h"
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/* NULL driver */
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class MidiDriver_NULL : public MidiDriver_MPU401 {
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public:
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int open() { return 0; }
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bool isOpen() const { return true; }
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void send(uint32 b) { }
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};
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// Plugin interface
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class NullMusicPlugin : public MusicPluginObject {
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public:
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virtual const char *getName() const {
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return _s("No music");
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}
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virtual const char *getId() const {
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return "null";
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}
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virtual MusicDevices getDevices() const;
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Common::Error createInstance(MidiDriver **mididriver, MidiDriver::DeviceHandle = 0) const;
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};
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#endif
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