1 /*
2 SDL_mixer: An audio mixer library based on the SDL library
3 Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
4
5 This software is provided 'as-is', without any express or implied
6 warranty. In no event will the authors be held liable for any damages
7 arising from the use of this software.
8
9 Permission is granted to anyone to use this software for any purpose,
10 including commercial applications, and to alter it and redistribute it
11 freely, subject to the following restrictions:
12
13 1. The origin of this software must not be misrepresented; you must not
14 claim that you wrote the original software. If you use this software
15 in a product, an acknowledgment in the product documentation would be
16 appreciated but is not required.
17 2. Altered source versions must be plainly marked as such, and must not be
18 misrepresented as being the original software.
19 3. This notice may not be removed or altered from any source distribution.
20 */
21
22 #ifdef MUSIC_MID_NATIVE
23
24 /* This file supports playing MIDI files with OS APIs */
25
26 #include "music_nativemidi.h"
27 #include "native_midi/native_midi.h"
28
29
NATIVEMIDI_CreateFromRW(SDL_RWops * src,int freesrc)30 static void *NATIVEMIDI_CreateFromRW(SDL_RWops *src, int freesrc)
31 {
32 NativeMidiSong *music = native_midi_loadsong_RW(src, freesrc);
33 if (!music) {
34 Mix_SetError("%s", native_midi_error());
35 }
36 return music;
37 }
38
NATIVEMIDI_Play(void * context,int play_count)39 static int NATIVEMIDI_Play(void *context, int play_count)
40 {
41 NativeMidiSong *music = (NativeMidiSong *)context;
42 int loops = play_count;
43 if (loops > 0) {
44 --loops;
45 }
46 native_midi_start(music, loops);
47 return 0;
48 }
49
NATIVEMIDI_SetVolume(void * context,int volume)50 static void NATIVEMIDI_SetVolume(void *context, int volume)
51 {
52 native_midi_setvolume(volume);
53 }
54
NATIVEMIDI_IsPlaying(void * context)55 static SDL_bool NATIVEMIDI_IsPlaying(void *context)
56 {
57 return native_midi_active() ? SDL_TRUE : SDL_FALSE;
58 }
59
NATIVEMIDI_Pause(void * context)60 static void NATIVEMIDI_Pause(void *context)
61 {
62 native_midi_pause();
63 }
64
NATIVEMIDI_Resume(void * context)65 static void NATIVEMIDI_Resume(void *context)
66 {
67 native_midi_resume();
68 }
69
NATIVEMIDI_Stop(void * context)70 static void NATIVEMIDI_Stop(void *context)
71 {
72 native_midi_stop();
73 }
74
NATIVEMIDI_Delete(void * context)75 static void NATIVEMIDI_Delete(void *context)
76 {
77 NativeMidiSong *music = (NativeMidiSong *)context;
78 native_midi_freesong(music);
79 }
80
81 Mix_MusicInterface Mix_MusicInterface_NATIVEMIDI =
82 {
83 "NATIVEMIDI",
84 MIX_MUSIC_NATIVEMIDI,
85 MUS_MID,
86 SDL_FALSE,
87 SDL_FALSE,
88
89 NULL, /* Load */
90 NULL, /* Open */
91 NATIVEMIDI_CreateFromRW,
92 NULL, /* CreateFromFile */
93 NATIVEMIDI_SetVolume,
94 NATIVEMIDI_Play,
95 NATIVEMIDI_IsPlaying,
96 NULL, /* GetAudio */
97 NULL, /* Seek */
98 NATIVEMIDI_Pause,
99 NATIVEMIDI_Resume,
100 NATIVEMIDI_Stop,
101 NATIVEMIDI_Delete,
102 NULL, /* Close */
103 NULL, /* Unload */
104 };
105
106 #endif /* MUSIC_MID_NATIVE */
107
108 /* vi: set ts=4 sw=4 expandtab: */
109