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

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1992 Microsoft Corporation
        !             3:  */
        !             4: 
        !             5: /*
        !             6:  * definition of interface functions to the adlib midi device type.
        !             7:  *
        !             8:  * These functions are called from midi.c when the kernel driver
        !             9:  * has decreed that this is an adlib-compatible device.
        !            10:  *
        !            11:  * Geraint Davies, Dec 92
        !            12:  */
        !            13: 
        !            14: 
        !            15: /*
        !            16:  * Adlib_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 Adlib_NoteOn (BYTE bPatch,
        !            29:        BYTE bNote, BYTE bChannel, BYTE bVelocity,
        !            30:        short iBend);
        !            31: 
        !            32: 
        !            33: 
        !            34: /* Adlib_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 Adlib_NoteOff (BYTE bPatch,
        !            45:        BYTE bNote, BYTE bChannel);
        !            46: 
        !            47: 
        !            48: /* Adlib_AllNotesOff - turn off all notes
        !            49:  *
        !            50:  * inputs - none
        !            51:  * returns - none
        !            52:  */
        !            53: VOID Adlib_AllNotesOff(void);
        !            54: 
        !            55: 
        !            56: 
        !            57: /* Adlib_NewVolume - This should be called if a volume level
        !            58:  *     has changed. This will adjust the levels of all the playing
        !            59:  *     voices.
        !            60:  *
        !            61:  * inputs
        !            62:  *     WORD    wLeft   - left attenuation (1.5 db units)
        !            63:  *     WORD    wRight  - right attenuation (ignore if mono)
        !            64:  * returns
        !            65:  *     none
        !            66:  */
        !            67: VOID FAR PASCAL Adlib_NewVolume (WORD wLeft, WORD wRight);
        !            68: 
        !            69: 
        !            70: 
        !            71: /* Adlib_ChannelVolume - set the volume level for an individual channel.
        !            72:  *
        !            73:  * inputs
        !            74:  *     BYTE    bChannel - channel number to change
        !            75:  *     WORD    wAtten  - attenuation in 1.5 db units
        !            76:  *
        !            77:  * returns
        !            78:  *     none
        !            79:  */
        !            80: VOID FAR PASCAL Adlib_ChannelVolume(BYTE bChannel, WORD wAtten);
        !            81:        
        !            82: 
        !            83: 
        !            84: /* Adlib_SetPan - set the left-right pan position.
        !            85:  *
        !            86:  * inputs
        !            87:  *      BYTE    bChannel  - channel number to alter
        !            88:  *     BYTE    bPan   - 0 for left, 127 for right or somewhere in the middle.
        !            89:  *
        !            90:  * returns - none
        !            91:  */
        !            92: VOID FAR PASCAL Adlib_SetPan(BYTE bChannel, BYTE bPan);
        !            93: 
        !            94: 
        !            95: 
        !            96: /* Adlib_PitchBend - This pitch bends a channel.
        !            97:  *
        !            98:  * inputs
        !            99:  *     BYTE    bChannel - channel
        !           100:  *     short   iBend - Values from -32768 to 32767, being
        !           101:  *                     -2 to +2 half steps
        !           102:  * returns
        !           103:  *     none
        !           104:  */
        !           105: VOID NEAR PASCAL Adlib_PitchBend (BYTE bChannel, short iBend);
        !           106: 
        !           107: 
        !           108: 
        !           109: /* Adlib_BoardInit - initialise board and load patches as necessary.
        !           110:  *
        !           111:  * inputs - none
        !           112:  * returns - 0 for success or the error code
        !           113:  */
        !           114: WORD Adlib_BoardInit(void);
        !           115: 
        !           116: 
        !           117: /*
        !           118:  * Adlib_BoardReset - silence the board and set all voices off.
        !           119:  */
        !           120: VOID Adlib_BoardReset(void);
        !           121: 
        !           122: 
        !           123: 

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