mirror of
https://github.com/libretro/RetroArch
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78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
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/* RetroArch - A frontend for libretro.
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* Copyright (C) 2018 The RetroArch team
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the 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 along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __MIDI_DRIVER__H
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#define __MIDI_DRIVER__H
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#include <boolean.h>
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#include <retro_common_api.h>
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RETRO_BEGIN_DECLS
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struct string_list;
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typedef struct
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{
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uint8_t *data;
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size_t data_size;
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uint32_t delta_time;
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} midi_event_t;
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typedef struct midi_driver
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{
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const char *ident;
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bool (*get_avail_inputs)(struct string_list *inputs);
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bool (*get_avail_outputs)(struct string_list *outputs);
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void *(*init)(const char *input, const char *output);
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void (*free)(void *p);
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bool (*set_input)(void *p, const char *input);
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bool (*set_output)(void *p, const char *output);
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bool (*read)(void *p, midi_event_t *event);
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bool (*write)(void *p, const midi_event_t *event);
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bool (*flush)(void *p);
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} midi_driver_t;
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const void *midi_driver_find_handle(int index);
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const char *midi_driver_find_ident(int index);
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struct string_list *midi_driver_get_avail_inputs(void);
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struct string_list *midi_driver_get_avail_outputs(void);
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bool midi_driver_set_all_sounds_off(void);
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bool midi_driver_set_volume(unsigned volume);
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bool midi_driver_init(void);
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void midi_driver_free(void);
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bool midi_driver_set_input(const char *input);
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bool midi_driver_set_output(const char *output);
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bool midi_driver_input_enabled(void);
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bool midi_driver_output_enabled(void);
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bool midi_driver_read(uint8_t *byte);
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bool midi_driver_write(uint8_t byte, uint32_t delta_time);
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bool midi_driver_flush(void);
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size_t midi_driver_get_event_size(uint8_t status);
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RETRO_END_DECLS
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#endif
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