1 /* GSequencer - Advanced GTK Sequencer 2 * Copyright (C) 2005-2020 Joël Krähemann 3 * 4 * This file is part of GSequencer. 5 * 6 * GSequencer is free software: you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation, either version 3 of the License, or 9 * (at your option) any later version. 10 * 11 * GSequencer is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with GSequencer. If not, see <http://www.gnu.org/licenses/>. 18 */ 19 20 #ifndef __AGS_AUDIO_LOOP_H__ 21 #define __AGS_AUDIO_LOOP_H__ 22 23 #include <glib.h> 24 #include <glib-object.h> 25 26 #include <ags/libags.h> 27 28 #include <ags/audio/ags_sound_enums.h> 29 30 #include <math.h> 31 32 G_BEGIN_DECLS 33 34 #define AGS_TYPE_AUDIO_LOOP (ags_audio_loop_get_type()) 35 #define AGS_AUDIO_LOOP(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), AGS_TYPE_AUDIO_LOOP, AgsAudioLoop)) 36 #define AGS_AUDIO_LOOP_CLASS(class) (G_TYPE_CHECK_CLASS_CAST(class, AGS_TYPE_AUDIO_LOOP, AgsAudioLoopClass)) 37 #define AGS_IS_AUDIO_LOOP(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), AGS_TYPE_AUDIO_LOOP)) 38 #define AGS_IS_AUDIO_LOOP_CLASS(class) (G_TYPE_CHECK_CLASS_TYPE ((class), AGS_TYPE_AUDIO_LOOP)) 39 #define AGS_AUDIO_LOOP_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS(obj, AGS_TYPE_AUDIO_LOOP, AgsAudioLoopClass)) 40 41 #define AGS_AUDIO_LOOP_DEFAULT_JIFFIE (ceil(AGS_SOUNDCARD_DEFAULT_SAMPLERATE / AGS_SOUNDCARD_DEFAULT_BUFFER_SIZE) + AGS_SOUNDCARD_DEFAULT_OVERCLOCK) 42 43 typedef struct _AgsAudioLoop AgsAudioLoop; 44 typedef struct _AgsAudioLoopClass AgsAudioLoopClass; 45 46 /** 47 * AgsAudioLoopFlags: 48 * @AGS_AUDIO_LOOP_PLAY_CHANNEL: play channel 49 * @AGS_AUDIO_LOOP_PLAYING_CHANNEL: playing channnel 50 * @AGS_AUDIO_LOOP_PLAY_CHANNEL_TERMINATING: play channe terminating 51 * @AGS_AUDIO_LOOP_PLAY_AUDIO: play audio 52 * @AGS_AUDIO_LOOP_PLAYING_AUDIO: playing audio 53 * @AGS_AUDIO_LOOP_PLAY_AUDIO_TERMINATING: play audio terminating 54 * 55 * Enum values to control the behavior or indicate internal state of #AgsAudioLoop by 56 * enable/disable as flags. 57 */ 58 typedef enum{ 59 AGS_AUDIO_LOOP_PLAY_CHANNEL = 1, 60 AGS_AUDIO_LOOP_PLAYING_CHANNEL = 1 << 1, 61 AGS_AUDIO_LOOP_PLAY_CHANNEL_TERMINATING = 1 << 2, 62 AGS_AUDIO_LOOP_PLAY_AUDIO = 1 << 3, 63 AGS_AUDIO_LOOP_PLAYING_AUDIO = 1 << 4, 64 AGS_AUDIO_LOOP_PLAY_AUDIO_TERMINATING = 1 << 5, 65 }AgsAudioLoopFlags; 66 67 struct _AgsAudioLoop 68 { 69 AgsThread thread; 70 71 guint flags; 72 73 GRecMutex tree_lock; 74 75 volatile gboolean is_syncing; 76 77 volatile gboolean is_critical_region; 78 volatile guint critical_region_ref; 79 80 guint play_channel_ref; 81 GList *play_channel; // play AgsChannel 82 83 guint play_audio_ref; 84 GList *play_audio; // play AgsAudio 85 86 GList *sync_thread; 87 88 gboolean do_fx_staging; 89 90 guint *staging_program; 91 guint staging_program_count; 92 }; 93 94 struct _AgsAudioLoopClass 95 { 96 AgsThreadClass thread; 97 }; 98 99 GType ags_audio_loop_get_type(); 100 101 /* flags */ 102 gboolean ags_audio_loop_test_flags(AgsAudioLoop *audio_loop, guint flags); 103 void ags_audio_loop_set_flags(AgsAudioLoop *audio_loop, guint flags); 104 void ags_audio_loop_unset_flags(AgsAudioLoop *audio_loop, guint flags); 105 106 /* runtime */ 107 void ags_audio_loop_add_audio(AgsAudioLoop *audio_loop, GObject *audio); 108 void ags_audio_loop_remove_audio(AgsAudioLoop *audio_loop, GObject *audio); 109 110 void ags_audio_loop_add_channel(AgsAudioLoop *audio_loop, GObject *channel); 111 void ags_audio_loop_remove_channel(AgsAudioLoop *audio_loop, GObject *channel); 112 113 /* staging */ 114 gboolean ags_audio_loop_get_do_fx_staging(AgsAudioLoop *audio_loop); 115 void ags_audio_loop_set_do_fx_staging(AgsAudioLoop *audio_loop, gboolean do_fx_staging); 116 117 guint* ags_audio_loop_get_staging_program(AgsAudioLoop *audio_loop, 118 guint *staging_program_count); 119 void ags_audio_loop_set_staging_program(AgsAudioLoop *audio_loop, 120 guint *staging_program, 121 guint staging_program_count); 122 123 /* instantiate */ 124 AgsAudioLoop* ags_audio_loop_new(); 125 126 G_END_DECLS 127 128 #endif /*__AGS_AUDIO_LOOP_H__*/ 129