Return to opl3.h CVS log

Up to [WindowsNT SDKs] / ntddk / src / mmedia / synth / dll

Annotation of ntddk/src/mmedia/synth/dll/opl3.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1992 Microsoft Corporation
        !             3:  */
        !             4: 
        !             5: /*
        !             6:  * declaration of interface functions to the OPL3 midi device type.
        !             7:  *
        !             8:  * These functions are called from midi.c when the kernel driver
        !             9:  * has decreed that this is an opl3-compatible device.
        !            10:  *
        !            11:  * Geraint Davies, Dec 92
        !            12:  */
        !            13: 
        !            14: 
        !            15: /*
        !            16:  * Opl3_NoteOn - This turns a note on. (Including drums, with
        !            17:  *     a patch # of the drum Note + 128)
        !            18:  *
        !            19:  * inputs
        !            20:  *      BYTE    bPatch - MIDI patch number
        !            21:  *     BYTE    bNote - MIDI note number
        !            22:  *      BYTE    bChannel - MIDI channel #
        !            23:  *     BYTE    bVelocity - Velocity #
        !            24:  *     short   iBend - current pitch bend from -32768, to 32767
        !            25:  * returns
        !            26:  *     none
        !            27:  */
        !            28: VOID NEAR PASCAL Opl3_NoteOn (BYTE bPatch,
        !            29:        BYTE bNote, BYTE bChannel, BYTE bVelocity,
        !            30:        short iBend);
        !            31: 
        !            32: 
        !            33: 
        !            34: /* Opl3_NoteOff - This turns a note off. (Including drums,
        !            35:  *     with a patch # of the drum note + 128)
        !            36:  *
        !            37:  * inputs
        !            38:  *     BYTE    bPatch - MIDI patch #
        !            39:  *     BYTE    bNote - MIDI note number
        !            40:  *     BYTE    bChannel - MIDI channel #
        !            41:  * returns
        !            42:  *     none
        !            43:  */
        !            44: VOID FAR PASCAL Opl3_NoteOff (BYTE bPatch,
        !            45:        BYTE bNote, BYTE bChannel);
        !            46: 
        !            47: /* Opl3_AllNotesOff - turn off all notes
        !            48:  *
        !            49:  * inputs - none
        !            50:  * returns - none
        !            51:  */
        !            52: VOID Opl3_AllNotesOff(void);
        !            53: 
        !            54: 
        !            55: /* Opl3_NewVolume - This should be called if a volume level
        !            56:  *     has changed. This will adjust the levels of all the playing
        !            57:  *     voices.
        !            58:  *
        !            59:  * inputs
        !            60:  *     WORD    wLeft   - left attenuation (1.5 db units)
        !            61:  *     WORD    wRight  - right attenuation (ignore if mono)
        !            62:  * returns
        !            63:  *     none
        !            64:  */
        !            65: VOID FAR PASCAL Opl3_NewVolume (WORD wLeft, WORD wRight);
        !            66: 
        !            67: 
        !            68: 
        !            69: /* Opl3_ChannelVolume - set the volume level for an individual channel.
        !            70:  *
        !            71:  * inputs
        !            72:  *     BYTE    bChannel - channel number to change
        !            73:  *     WORD    wAtten  - attenuation in 1.5 db units
        !            74:  *
        !            75:  * returns
        !            76:  *     none
        !            77:  */
        !            78: VOID FAR PASCAL Opl3_ChannelVolume(BYTE bChannel, WORD wAtten);
        !            79:        
        !            80: 
        !            81: 
        !            82: /* Opl3_SetPan - set the left-right pan position.
        !            83:  *
        !            84:  * inputs
        !            85:  *      BYTE    bChannel  - channel number to alter
        !            86:  *     BYTE    bPan   - 0 for left, 127 for right or somewhere in the middle.
        !            87:  *
        !            88:  * returns - none
        !            89:  */
        !            90: VOID FAR PASCAL Opl3_SetPan(BYTE bChannel, BYTE bPan);
        !            91: 
        !            92: 
        !            93: 
        !            94: /* Opl3_PitchBend - This pitch bends a channel.
        !            95:  *
        !            96:  * inputs
        !            97:  *     BYTE    bChannel - channel
        !            98:  *     short   iBend - Values from -32768 to 32767, being
        !            99:  *                     -2 to +2 half steps
        !           100:  * returns
        !           101:  *     none
        !           102:  */
        !           103: VOID NEAR PASCAL Opl3_PitchBend (BYTE bChannel, short iBend);
        !           104: 
        !           105: 
        !           106: 
        !           107: /* Opl3_BoardInit - initialise board and load patches as necessary.
        !           108:  *
        !           109:  * inputs - none
        !           110:  * returns - 0 for success or the error code
        !           111:  */
        !           112: WORD Opl3_BoardInit(void);
        !           113: 
        !           114: 
        !           115: /*
        !           116:  * Opl3_BoardReset - silence the board and set all voices off.
        !           117:  */
        !           118: VOID Opl3_BoardReset(void);
        !           119: 
        !           120: 
        !           121: 

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.