| /*---------------------------------------------------------------------------- |
| * |
| * File: |
| * eas_miditypes.h |
| * |
| * Contents and purpose: |
| * Contains declarations for the MIDI stream parser. |
| * |
| * |
| * Copyright Sonic Network Inc. 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: 778 $ |
| * $Date: 2007-07-23 16:45:17 -0700 (Mon, 23 Jul 2007) $ |
| *---------------------------------------------------------------------------- |
| */ |
| |
| #ifndef _EAS_MIDITYPES_H |
| #define _EAS_MIDITYPES_H |
| |
| #include "eas_data.h" |
| #include "eas_parser.h" |
| |
| /*---------------------------------------------------------------------------- |
| * S_MIDI_STREAM |
| * |
| * Maintains parser state for the MIDI stream parser |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| |
| typedef struct s_midi_stream_tag |
| { |
| EAS_BOOL8 byte3; /* flag indicates 3rd byte expected */ |
| EAS_BOOL8 pending; /* flag indicates more data expected */ |
| EAS_U8 sysExState; /* maintains the SysEx state */ |
| EAS_U8 runningStatus; /* last running status received */ |
| EAS_U8 status; /* status byte */ |
| EAS_U8 d1; /* first data byte */ |
| EAS_U8 d2; /* second data byte */ |
| EAS_U8 flags; /* flags - see below for definition */ |
| #ifdef JET_INTERFACE |
| EAS_U32 jetData; /* JET data */ |
| #endif |
| } S_MIDI_STREAM; |
| |
| /* flags for S_MIDI_STREAM.flags */ |
| #define MIDI_FLAG_GM_ON 0x01 /* GM System On message received */ |
| #define MIDI_FLAG_FIRST_NOTE 0x02 /* first note received */ |
| |
| /* flags for S_MIDI_STREAM.jetFlags */ |
| #define MIDI_FLAGS_JET_MUTE 0x00000001 /* track is muted */ |
| #define MIDI_FLAGS_JET_CB 0x00000002 /* JET callback enabled */ |
| |
| /*---------------------------------------------------------------------------- |
| * |
| * S_SMF_STREAM |
| * |
| * This structure contains data required to parse an SMF stream. For SMF0 files, there |
| * will be a single instance of this per file. For SMF1 files, there will be multiple instance, |
| * one for each separate stream in the file. |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| |
| typedef struct s_smf_stream_tag |
| { |
| EAS_FILE_HANDLE fileHandle; /* host wrapper file handle */ |
| EAS_U32 ticks; /* time of next event in stream */ |
| EAS_I32 startFilePos; /* start location of track within file */ |
| S_MIDI_STREAM midiStream; /* MIDI stream state */ |
| } S_SMF_STREAM; |
| |
| /*---------------------------------------------------------------------------- |
| * |
| * S_SMF_DATA |
| * |
| * This structure contains the instance data required to parse an SMF stream. |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| |
| typedef struct s_smf_data_tag |
| { |
| #ifdef _CHECKED_BUILD |
| EAS_U32 handleCheck; /* signature check for checked build */ |
| #endif |
| S_SMF_STREAM *streams; /* pointer to individual streams in file */ |
| S_SMF_STREAM *nextStream; /* pointer to next stream with event */ |
| S_SYNTH *pSynth; /* pointer to synth */ |
| EAS_FILE_HANDLE fileHandle; /* file handle */ |
| S_METADATA_CB metadata; /* metadata callback */ |
| EAS_I32 fileOffset; /* for embedded files */ |
| EAS_I32 time; /* current time in milliseconds/256 */ |
| EAS_U16 numStreams; /* actual number of streams */ |
| EAS_U16 tickConv; /* current MIDI tick to msec conversion */ |
| EAS_U16 ppqn; /* ticks per quarter note */ |
| EAS_U8 state; /* current state EAS_STATE_XXXX */ |
| EAS_U8 flags; /* flags - see definitions below */ |
| } S_SMF_DATA; |
| |
| #define SMF_FLAGS_CHASE_MODE 0x01 /* chase mode - skip to first note */ |
| #define SMF_FLAGS_HAS_TIME_SIG 0x02 /* time signature encountered at time 0 */ |
| #define SMF_FLAGS_HAS_TEMPO 0x04 /* tempo encountered at time 0 */ |
| #define SMF_FLAGS_HAS_GM_ON 0x08 /* GM System On encountered at time 0 */ |
| #define SMF_FLAGS_JET_STREAM 0x80 /* JET in use - keep strict timing */ |
| |
| /* combo flags indicate setup bar */ |
| #define SMF_FLAGS_SETUP_BAR (SMF_FLAGS_HAS_TIME_SIG | SMF_FLAGS_HAS_TEMPO | SMF_FLAGS_HAS_GM_ON) |
| |
| /*---------------------------------------------------------------------------- |
| * Interactive MIDI structure |
| *---------------------------------------------------------------------------- |
| */ |
| typedef struct s_interactive_midi_tag |
| { |
| #ifdef _CHECKED_BUILD |
| EAS_U32 handleCheck; /* signature check for checked build */ |
| #endif |
| S_SYNTH *pSynth; /* pointer to synth */ |
| S_MIDI_STREAM stream; /* stream data */ |
| } S_INTERACTIVE_MIDI; |
| |
| #endif /* #ifndef _EAS_MIDITYPES_H */ |
| |
