mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-28 12:46:56 +00:00
126 lines
4.6 KiB
C++
126 lines
4.6 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 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 SCI_SFX_SOFTSEQ_H
|
|
#define SCI_SFX_SOFTSEQ_H
|
|
|
|
#include "sci/sfx/sfx.h"
|
|
#include "sci/sfx/sfx_pcm.h"
|
|
#include "sci/sfx/sequencer.h"
|
|
#include "sci/tools.h"
|
|
|
|
namespace Sci {
|
|
|
|
/* Software sequencer */
|
|
struct sfx_softseq_t {
|
|
const char *name;
|
|
const char *version;
|
|
|
|
int (*set_option)(sfx_softseq_t *self, const char *name, const char *value);
|
|
/* Sets an option for the sequencer
|
|
** Parameters: (sfx_softseq_t *) self: Self reference
|
|
** (const char *) name: Name of the option to set
|
|
** (const char *) value: Value to set the option to
|
|
** Returns : (int) GFX_OK on success, or GFX_ERROR if not supported
|
|
*/
|
|
|
|
int (*init)(sfx_softseq_t *self, byte *res_data, int res_size,
|
|
byte *res2_data, int res2_size);
|
|
/* Initialises the sequencer
|
|
** Parameters: (sfx_softseq_t *) self: Self reference
|
|
** (byte *) res_data: Resource data for 'patch_nr' (see below)
|
|
** (int) res_size: Number of bytes in 'res_data'
|
|
** (byte *) res2_data: Resource data for 'patch2_nr' (see below)
|
|
** (int) res2_size: Number of bytes in 'res2_data'
|
|
** Returns : (int) SFX_OK on success, SFX_ERROR otherwise
|
|
** Note that 'res_data' is only a valid pointer for this call. If the
|
|
** data is needed later during execution, it should be backed up internally.
|
|
** If the requested resource is not available, res_data will be NULL
|
|
** /even if/ patch_nr is set.
|
|
*/
|
|
|
|
void (*exit)(sfx_softseq_t *self);
|
|
/* Uninitialises the sequencer and frees all used resources
|
|
** Parameters: (sfx_softseq_t *) self: Self reference
|
|
*/
|
|
|
|
void (*set_volume)(sfx_softseq_t *self, int new_volume);
|
|
/* Sets the sequencer volume
|
|
** Parameters: (sfx_softseq_t *) self: Self reference
|
|
** (int) new_volume: A volume, between 0 (quiet) and 127 (max)
|
|
*/
|
|
|
|
void (*handle_command)(sfx_softseq_t *self, byte cmd, int argc, byte *argv);
|
|
/* Handle a MIDI command
|
|
** Parameters: (sfx_softseq_t *) self: Self reference
|
|
** (byte) cmd: Basic MIDI command, always includes command and channel
|
|
** (int) argc: Number of additional arguments to this command
|
|
** (byte *) argv: Additional arguments to 'cmd'
|
|
*/
|
|
|
|
void (*poll)(sfx_softseq_t *self, byte *dest, int len);
|
|
/* Asks the software sequencer to fill in parts of a buffer
|
|
** Parameters: (sfx_softseq_t *) self: Self reference
|
|
** (int) len: Number of _frames_ to write
|
|
** Returns : (byte) *dest: 'len' frames must be written to this buffer
|
|
*/
|
|
|
|
void (*allstop)(sfx_softseq_t *self);
|
|
/* Stops all sound generation
|
|
** Parameters: (sfx_softseq_t *) self: Self reference
|
|
*/
|
|
|
|
void *internal; /* Internal data, may be used by sfx_softseq_t inmplementors */
|
|
|
|
int patch_nr; /* Number of the first patch file associated with this sequencer,
|
|
** or SFX_SEQ_PATCHFILE_NONE */
|
|
int patch2_nr; /* Number of the second patch file associated with this sequencer,
|
|
** or SFX_SEQ_PATCHFILE_NONE */
|
|
int playmask; /* playflag identifying the device emulated */
|
|
/* 0x01 -- MT-32
|
|
** 0x02 -- Yamaha FB-01
|
|
** 0x04 -- CMS or Game Blaster
|
|
** 0x08 -- Casio MT540 or CT460
|
|
** 0x10 -- Tandy 3-voice
|
|
** 0x20 -- PC speaker
|
|
*/
|
|
int play_rhythm; /* Whether the rhythm channel (9) should be played */
|
|
int polyphony; /* Number of voices played */
|
|
|
|
sfx_pcm_config_t pcm_conf; /* Setup of the channel the sequencer writes to */
|
|
|
|
};
|
|
|
|
|
|
sfx_softseq_t *sfx_find_softseq(const char *name);
|
|
/* Finds a given or default software sequencer
|
|
** Parameters: (const char *) name: Name of the sequencer to look up, or NULL for default
|
|
** Returns : (sfx_softseq_t *) The requested sequencer, or NULL if not found
|
|
*/
|
|
|
|
} // End of namespace Sci
|
|
|
|
#endif // SCI_SFX_SOFTSEQ_H
|