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→Audio related tasks: Restructure things a bit
(→Audio output selection: Use "AdLib" instead of "Adlib") |
(→Audio related tasks: Restructure things a bit) |
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== Audio related tasks == | == Audio related tasks == | ||
=== Audio output selection === | === Audio output selection === | ||
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* All configuration must be serializable for our configuration file. (And it would be nice to have some auto update feature for old configuration files!) | * All configuration must be serializable for our configuration file. (And it would be nice to have some auto update feature for old configuration files!) | ||
=== MIDI device configuration === | |||
''Technical Contact'': [[User:Fingolfin|Max Horn]] | ''Technical Contact'': [[User:Fingolfin|Max Horn]] | ||
''Background:'' | ''Background:'' | ||
Right now, the MIDI drivers are treated by ScummVM in a rather single minded fashion: Either a driver is linked in and hence "available", or not. It's not possible to configure anything about them (like ports to be used etc.), nor does it ever take into account that a single driver might correspond to multiple devices (after all, you can plug several sequencers into your MIDI port; or you could have configured several different sound font settings in your MIDI emulator). | Many of the adventures supported by ScummVM make use of MIDI music. Which is why we already include several device drivers for various MIDI APIs and emulators (e.g. ALSA, Windows MIDI, Mac OS X CoreAudio/CoreMIDI, fluidsynth...). | ||
Right now, the MIDI drivers (and more generally, audio drivers, see the previous task) are treated by ScummVM in a rather single minded fashion: Either a driver is linked in and hence "available", or not. It's not possible to configure anything about them (like ports to be used etc.), nor does it ever take into account that a single driver might correspond to multiple devices (after all, you can plug several sequencers into your MIDI port; or you could have configured several different sound font settings in your MIDI emulator). These two issues are very tightly related. | |||
<span style="color:red">TODO improve and extend description, and integrate it better with the Audio output selection task</span> | |||
Some more details can be found on the [[Music drivers redesign]] Wiki page. | Some more details can be found on the [[Music drivers redesign]] Wiki page. | ||
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* Devices should be configurable via the GUI; this needs to be done in a flexible (different devices/drivers offer different settings) and portable fashion. | * Devices should be configurable via the GUI; this needs to be done in a flexible (different devices/drivers offer different settings) and portable fashion. | ||
=== | === XMIDI parser === | ||
''Technical Contact'': [[User: | ''Technical Contact'': [[User:Fingolfin|Max Horn]] | ||
''Background:'' | ''Background:'' | ||
Several of our games make use of the XMIDI format. We already have a parser for it (see sound/midiparser_xmidi.cpp), which was based on code from the [http://exult.sf.net Exult] project, but it is incomplete. | |||
''The Task:'' | ''The Task:'' | ||
Specifically, we require support for XMIDI_CONTROLLER_FOR_LOOP and XMIDI_CONTROLLER_NEXT_BREAK. There are many more XMIDI controllers, however, and ideally support for all of them would be great. Some references: | |||
* The XMIDI code from the [http://exult.sf.net Exult] project (see Exult's audio/midi_drivers/XMidiSequence.cpp) could be used as a reference again. | |||
* In addition, [http://pentagram.sf.net Pentagram] has XMidi code based on the Exult code, but may be cleaner (see [http://pentagram.svn.sourceforge.net/viewvc/pentagram/pentagram/trunk/audio/midi/ here].) | |||
* Another good reference for this task is the AIL library which has been recently open-sourced by its [http://www.thegleam.com/ke5fx/ author]. This is infact where XMIDI comes from, and it even contains specs. To find them, unzip AIL2.ZIP; in there you find A214_D2.ZIP, which when unzipped contains a dir DOC, which in turn contains ASCIIDOC.ZIP, which then contains XMIDI.TXT and some other files which might be of use (e.g. NOTES.TXT). | |||
=== | === Accolade MIDI parser === | ||
''Technical Contact'': [[User: | ''Technical Contact'': [[User:Kirben|Travis Howell]] | ||
''Background:'' | ''Background:'' | ||
The Elvira 1 (DOS), Elvira 2 (DOS), Waxworks (DOS) games of the AGOS engine use the [http://adplug.sourceforge.net/library/entry.php?file=db/AccoladeMidi.txt Accolade MIDI] format for music. The current parser (see engines/agos/midiparser_s1d.cpp), is based off looking at the music in the DOS Floppy Demo of Simon the Sorcerer 1 (Which was based Waxworks engine) and guess work. The current code frequently crashes when changing locations in Waxworks, due to invalid MIDI data been passed along. | |||
''The Task:'' | ''The Task:'' | ||
Updated the current parser, to completely support the [http://adplug.sourceforge.net/library/entry.php?file=db/AccoladeMidi.txt Accolade MIDI] format used by these games. There are already comments in the current code, about where each additional MIDI event is triggered in the music of these games. | |||
=== Support for Acorn Audio Format: Desktop Tracker === | === Support for Acorn Audio Format: Desktop Tracker === | ||
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* ARM assembler knowledge is a big plus. | * ARM assembler knowledge is a big plus. | ||
* Acorn knowledge is a plus. | * Acorn knowledge is a plus. | ||
=== Improve sound support in SCUMM games === | |||
''Technical Contact'': [[User:Sev|Eugene Sandulenko]], [[User:Kirben|Travis Howell]] | |||
<span style="color:red">TODO: Is this task really suitable for this wiki page? It seems to be very specific and has a high entry barrier (esp. for the Apple II part). At the very least, a more detailed description is necessary.</span> | |||
* Add support for beeper sound used by the Apple II version of Maniac Mansion to the SCUMM engine. Unfortunately there is no demo versions are available, so you need to own the game. Known information about the resource format can be found [[SCUMM/V0/Maniac_Mansion_Apple_II|here]]. | |||
* Add support for sound format used by Macintosh version of Loom to SCUMM engine. Known [http://sourceforge.net/tracker/index.php?func=detail&aid=824221&group_id=37116&atid=418823 information] about the structure of the sound resources used is available. If you don't own the game, the LucasArts Mac CD Game pack is usually available via eBay. | |||
== Tools == | == Tools == | ||