From e442bb7cd6a085b33a4dd52c0e20a157ada7feb1 Mon Sep 17 00:00:00 2001 From: The Android Open Source Project Date: Tue, 21 Oct 2008 07:00:00 -0700 Subject: Initial Contribution --- arm-hybrid-22k/lib_src/eas_synth.h | 395 +++++++++++++++++++++++++++++++++++++ 1 file changed, 395 insertions(+) create mode 100644 arm-hybrid-22k/lib_src/eas_synth.h (limited to 'arm-hybrid-22k/lib_src/eas_synth.h') diff --git a/arm-hybrid-22k/lib_src/eas_synth.h b/arm-hybrid-22k/lib_src/eas_synth.h new file mode 100644 index 0000000..b242b03 --- /dev/null +++ b/arm-hybrid-22k/lib_src/eas_synth.h @@ -0,0 +1,395 @@ +/*---------------------------------------------------------------------------- + * + * File: + * eas_synth.h + * + * Contents and purpose: + * Declarations, interfaces, and prototypes for synth. + * + * Copyright Sonic Network Inc. 2004, 2005 + + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + *---------------------------------------------------------------------------- + * Revision Control: + * $Revision: 718 $ + * $Date: 2007-06-08 16:43:16 -0700 (Fri, 08 Jun 2007) $ + *---------------------------------------------------------------------------- +*/ + +#ifndef _EAS_SYNTH_H +#define _EAS_SYNTH_H + +#include "eas_types.h" +#include "eas_sndlib.h" + +#ifdef _WT_SYNTH +#include "eas_wtsynth.h" +#endif + +#ifdef _FM_SYNTH +#include "eas_fmsynth.h" +#endif + +#ifndef NUM_OUTPUT_CHANNELS +#define NUM_OUTPUT_CHANNELS 2 +#endif + +#ifndef MAX_SYNTH_VOICES +#define MAX_SYNTH_VOICES 64 +#endif + +#ifndef MAX_VIRTUAL_SYNTHESIZERS +#define MAX_VIRTUAL_SYNTHESIZERS 4 +#endif + +/* defines */ +#ifndef NUM_PRIMARY_VOICES +#define NUM_PRIMARY_VOICES MAX_SYNTH_VOICES +#elif !defined(NUM_SECONDARY_VOICES) +#define NUM_SECONDARY_VOICES (MAX_SYNTH_VOICES - NUM_PRIMARY_VOICES) +#endif + +#if defined(EAS_WT_SYNTH) +#define NUM_WT_VOICES MAX_SYNTH_VOICES + +/* FM on MCU */ +#elif defined(EAS_FM_SYNTH) +#define NUM_FM_VOICES MAX_SYNTH_VOICES + +/* wavetable drums on MCU, wavetable melodic on DSP */ +#elif defined(EAS_SPLIT_WT_SYNTH) +#define NUM_WT_VOICES MAX_SYNTH_VOICES + +/* wavetable drums and FM melodic on MCU */ +#elif defined(EAS_HYBRID_SYNTH) +#define NUM_WT_VOICES NUM_PRIMARY_VOICES +#define NUM_FM_VOICES NUM_SECONDARY_VOICES + +/* wavetable drums on MCU, FM melodic on DSP */ +#elif defined(EAS_SPLIT_HYBRID_SYNTH) +#define NUM_WT_VOICES NUM_PRIMARY_VOICES +#define NUM_FM_VOICES NUM_SECONDARY_VOICES + +/* FM synth on DSP */ +#elif defined(EAS_SPLIT_FM_SYNTH) +#define NUM_FM_VOICES MAX_SYNTH_VOICES + +#else +#error "Unrecognized architecture option" +#endif + +#define NUM_SYNTH_CHANNELS 16 + +#define DEFAULT_SYNTH_VOICES MAX_SYNTH_VOICES + +/* use the following values to specify unassigned channels or voices */ +#define UNASSIGNED_SYNTH_CHANNEL NUM_SYNTH_CHANNELS +#define UNASSIGNED_SYNTH_VOICE MAX_SYNTH_VOICES + + +/* synth parameters are updated every SYNTH_UPDATE_PERIOD_IN_SAMPLES */ +#define SYNTH_UPDATE_PERIOD_IN_SAMPLES (EAS_I32)(0x1L << SYNTH_UPDATE_PERIOD_IN_BITS) + +/* stealing weighting factors */ +#define NOTE_AGE_STEAL_WEIGHT 1 +#define NOTE_GAIN_STEAL_WEIGHT 4 +#define CHANNEL_POLY_STEAL_WEIGHT 12 +#define CHANNEL_PRIORITY_STEAL_WEIGHT 2 +#define NOTE_MATCH_PENALTY 128 +#define SYNTH_PRIORITY_WEIGHT 8 + +/* default synth master volume */ +#define DEFAULT_SYNTH_MASTER_VOLUME 0x7fff + +#define DEFAULT_SYNTH_PRIORITY 5 + +/* default tuning values */ +#define DEFAULT_PITCH_BEND_SENSITIVITY 200 /* 2 semitones */ +#define DEFAULT_FINE_PITCH 0 /* 0 cents */ +#define DEFAULT_COARSE_PITCH 0 /* 0 semitones */ + +/* default drum channel is 10, but is internally 9 due to unit offset */ +#define DEFAULT_DRUM_CHANNEL 9 + +/* drum channel can simultaneously play this many voices at most */ +#define DEFAULT_CHANNEL_POLYPHONY_LIMIT 2 + +/* default instrument is acoustic piano */ +#define DEFAULT_MELODY_BANK_MSB 0x79 +#define DEFAULT_RHYTHM_BANK_MSB 0x78 +#define DEFAULT_MELODY_BANK_NUMBER (DEFAULT_MELODY_BANK_MSB << 8) +#define DEFAULT_RHYTHM_BANK_NUMBER (DEFAULT_RHYTHM_BANK_MSB << 8) +#define DEFAULT_SYNTH_PROGRAM_NUMBER 0 + +#define DEFAULT_PITCH_BEND 0x2000 /* 0x2000 == (0x40 << 7) | 0x00 */ +#define DEFAULT_MOD_WHEEL 0 +#define DEFAULT_CHANNEL_VOLUME 0x64 +#define DEFAULT_PAN 0x40 /* decimal 64, center */ + +#ifdef _REVERB +#define DEFAULT_REVERB_SEND 40 /* some reverb */ +#endif + +#ifdef _CHORUS +#define DEFAULT_CHORUS_SEND 0 /* no chorus */ +#endif + +#define DEFAULT_EAS_FILTER_CUTOFF_FREQUENCY 0 /* EAS synth uses a different default */ +#define DEFAULT_FILTER_RESONANCE 0 +#define DEFAULT_EXPRESSION 0x7F + +#define DEFAULT_CHANNEL_PRESSURE 0 + +#define DEFAULT_REGISTERED_PARAM 0x3FFF + +#define DEFAULT_CHANNEL_STATIC_GAIN 0 +#define DEFAULT_CHANNEL_STATIC_PITCH 0 + +#define DEFAULT_LFO_MOD_WHEEL_TO_PITCH_CENTS 50 +#define DEFAULT_LFO_CHANNEL_PRESSURE_TO_PITCH_CENTS 50 + +#define DEFAULT_KEY_NUMBER 0x69 +#define DEFAULT_VELOCITY 0x64 +#define DEFAULT_REGION_INDEX 0 +#define DEFAULT_ARTICULATION_INDEX 0 +#define DEFAULT_VOICE_GAIN 0 +#define DEFAULT_AGE 0 +#define DEFAULT_SP_MIDI_PRIORITY 16 + + +/* filter defines */ +#define DEFAULT_FILTER_ZERO 0 +#define FILTER_CUTOFF_MAX_PITCH_CENTS 1919 +#define FILTER_CUTOFF_MIN_PITCH_CENTS -4467 +#define A5_PITCH_OFFSET_IN_CENTS 6900 + +/*------------------------------------ + * S_SYNTH_CHANNEL data structure + *------------------------------------ +*/ + +/* S_SYNTH_CHANNEL.m_nFlags */ +#define CHANNEL_FLAG_SUSTAIN_PEDAL 0x01 +#define CHANNEL_FLAG_MUTE 0x02 +#define CHANNEL_FLAG_UPDATE_CHANNEL_PARAMETERS 0x04 +#define CHANNEL_FLAG_RHYTHM_CHANNEL 0x08 +#define CHANNEL_FLAG_EXTERNAL_AUDIO 0x10 +#define DEFAULT_CHANNEL_FLAGS 0 + +/* macros for extracting virtual synth and channel numbers */ +#define GET_VSYNTH(a) ((a) >> 4) +#define GET_CHANNEL(a) ((a) & 15) + +typedef struct s_synth_channel_tag +{ + /* use static channel parameters to reduce MIPs */ + /* parameters shared by multiple voices assigned to same channel */ + EAS_I32 staticPitch; /* (pitch bend * pitch sens) + fine pitch */ + EAS_I16 staticGain; /* (CC7 * CC11 * master vol)^2 */ + + EAS_U16 regionIndex; /* index of first region in program */ + + EAS_U16 bankNum; /* play programs from this bank */ + EAS_I16 pitchBend; /* pitch wheel value */ + EAS_I16 pitchBendSensitivity; + EAS_I16 registeredParam; /* currently selected registered param */ + + +#if defined(_FM_SYNTH) + EAS_I16 lfoAmt; /* amount of LFO to apply to voice */ +#endif + + EAS_U8 programNum; /* play this instrument number */ + EAS_U8 modWheel; /* CC1 */ + EAS_U8 volume; /* CC7 */ + EAS_U8 pan; /* CC10 */ + + EAS_U8 expression; /* CC11 */ + + /* the following parameters are controlled by RPNs */ + EAS_I8 finePitch; + EAS_I8 coarsePitch; + + EAS_U8 channelPressure; /* applied to all voices on a given channel */ + + EAS_U8 channelFlags; /* bit field channelFlags for */ + /* CC64, SP-MIDI channel masking */ + + EAS_U8 pool; /* SPMIDI channel voice pool */ + EAS_U8 mip; /* SPMIDI MIP setting */ + +#ifdef _REVERB + EAS_U8 reverbSend; /* CC91 */ +#endif + +#ifdef _CHORUS + EAS_U8 chorusSend; /* CC93 */ +#endif +} S_SYNTH_CHANNEL; + +/*------------------------------------ + * S_SYNTH_VOICE data structure + *------------------------------------ +*/ + +/* S_SYNTH_VOICE.m_nFlags */ +#define VOICE_FLAG_UPDATE_VOICE_PARAMETERS 0x01 +#define VOICE_FLAG_SUSTAIN_PEDAL_DEFER_NOTE_OFF 0x02 +#define VOICE_FLAG_DEFER_MIDI_NOTE_OFF 0x04 +#define VOICE_FLAG_NO_SAMPLES_SYNTHESIZED_YET 0x08 +#define VOICE_FLAG_DEFER_MUTE 0x40 +#define DEFAULT_VOICE_FLAGS 0 + +/* S_SYNTH_VOICE.m_eState */ +typedef enum { + + eVoiceStateFree = 0, + eVoiceStateStart, + eVoiceStatePlay, + eVoiceStateRelease, + eVoiceStateMuting, + eVoiceStateStolen, + eVoiceStateInvalid /* should never be in this state! */ + +} E_VOICE_STATE; +#define DEFAULT_VOICE_STATE eVoiceStateFree + +typedef struct s_synth_voice_tag +{ + +/* These parameters are common to both wavetable and FM + * synthesizers. The voice manager should only access this data. + * Any other data should be manipulated by the code that is + * specific to that synthesizer and reflected back through the + * common state data available here. + */ + EAS_U16 regionIndex; /* index to wave and playback params */ + EAS_I16 gain; /* current gain */ + EAS_U16 age; /* large value means old note */ + EAS_U16 nextRegionIndex; /* index to wave and playback params */ + EAS_U8 voiceState; /* current voice state */ + EAS_U8 voiceFlags; /* misc flags/bit fields */ + EAS_U8 channel; /* this voice plays on this synth channel */ + EAS_U8 note; /* 12 <= key number <= 108 */ + EAS_U8 velocity; /* 0 <= velocity <= 127 */ + EAS_U8 nextChannel; /* play stolen voice on this channel */ + EAS_U8 nextNote; /* 12 <= key number <= 108 */ + EAS_U8 nextVelocity; /* 0 <= velocity <= 127 */ +} S_SYNTH_VOICE; + +/*------------------------------------ + * S_SYNTH data structure + * + * One instance for each MIDI stream + *------------------------------------ +*/ + +/* S_SYNTH.m_nFlags */ +#define SYNTH_FLAG_RESET_IS_REQUESTED 0x01 +#define SYNTH_FLAG_SP_MIDI_ON 0x02 +#define SYNTH_FLAG_UPDATE_ALL_CHANNEL_PARAMETERS 0x04 +#define SYNTH_FLAG_DEFERRED_MIDI_NOTE_OFF_PENDING 0x08 +#define DEFAULT_SYNTH_FLAGS SYNTH_FLAG_UPDATE_ALL_CHANNEL_PARAMETERS + +typedef struct s_synth_tag +{ + struct s_eas_data_tag *pEASData; + const S_EAS *pEAS; + +#ifdef DLS_SYNTHESIZER + S_DLS *pDLS; +#endif + +#ifdef EXTERNAL_AUDIO + EAS_EXT_PRG_CHG_FUNC cbProgChgFunc; + EAS_EXT_EVENT_FUNC cbEventFunc; + EAS_VOID_PTR *pExtAudioInstData; +#endif + + S_SYNTH_CHANNEL channels[NUM_SYNTH_CHANNELS]; + EAS_I32 totalNoteCount; + EAS_U16 maxPolyphony; + EAS_U16 numActiveVoices; + EAS_U16 masterVolume; + EAS_U8 channelsByPriority[NUM_SYNTH_CHANNELS]; + EAS_U8 poolCount[NUM_SYNTH_CHANNELS]; + EAS_U8 poolAlloc[NUM_SYNTH_CHANNELS]; + EAS_U8 synthFlags; + EAS_I8 globalTranspose; + EAS_U8 vSynthNum; + EAS_U8 refCount; + EAS_U8 priority; +} S_SYNTH; + +/*------------------------------------ + * S_VOICE_MGR data structure + * + * One instance for each EAS library instance + *------------------------------------ +*/ +typedef struct s_voice_mgr_tag +{ + S_SYNTH *pSynth[MAX_VIRTUAL_SYNTHESIZERS]; + EAS_PCM voiceBuffer[SYNTH_UPDATE_PERIOD_IN_SAMPLES]; + +#ifdef _FM_SYNTH + EAS_PCM operMixBuffer[SYNTH_UPDATE_PERIOD_IN_SAMPLES]; + S_FM_VOICE fmVoices[NUM_FM_VOICES]; +#endif + +#ifdef _WT_SYNTH + S_WT_VOICE wtVoices[NUM_WT_VOICES]; +#endif + +#ifdef _REVERB + EAS_PCM reverbSendBuffer[NUM_OUTPUT_CHANNELS * SYNTH_UPDATE_PERIOD_IN_SAMPLES]; +#endif + +#ifdef _CHORUS + EAS_PCM chorusSendBuffer[NUM_OUTPUT_CHANNELS * SYNTH_UPDATE_PERIOD_IN_SAMPLES]; +#endif + S_SYNTH_VOICE voices[MAX_SYNTH_VOICES]; + + EAS_SNDLIB_HANDLE pGlobalEAS; + +#ifdef DLS_SYNTHESIZER + S_DLS *pGlobalDLS; +#endif + +#ifdef _SPLIT_ARCHITECTURE + EAS_FRAME_BUFFER_HANDLE pFrameBuffer; +#endif + +#if defined(_SECONDARY_SYNTH) || defined(EAS_SPLIT_WT_SYNTH) + EAS_U16 maxPolyphonyPrimary; + EAS_U16 maxPolyphonySecondary; +#endif + + EAS_I32 workload; + EAS_I32 maxWorkLoad; + + EAS_U16 activeVoices; + EAS_U16 maxPolyphony; + + EAS_U16 age; + +/* limits the number of voice starts in a frame for split architecture */ +#ifdef MAX_VOICE_STARTS + EAS_U16 numVoiceStarts; +#endif +} S_VOICE_MGR; + +#endif /* #ifdef _EAS_SYNTH_H */ + + -- cgit v1.2.3