Software of the Month Club 2000 October/Software of the Month - Ultimate Collection Shareware 277.iso/pc/PROGRAMS/UTILITY/WINLINUX/DATA1.CAB/programs_-_include/LINUX/WAVEFRON.{9V

Text File | 1999-09-17 | 19KB | 676 lines

#ifndef __wavefront_h__
#define __wavefront_h__

/* WaveFront header file.
 *
 * Copyright (C) by Paul Barton-Davis 1998
 *
 * This program is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
 * Version 2 (June 1991). See the "COPYING" file distributed with this software
 * for more info.
 */

#if (!defined(__GNUC__) && !defined(__GNUG__))

     You will not be able to compile this file correctly without gcc, because
     it is necessary to pack the "wavefront_alias" structure to a size
     of 22 bytes, corresponding to 16-bit alignment (as would have been
     the case on the original platform, MS-DOS). If this is not done,
     then WavePatch-format files cannot be read/written correctly.
     The method used to do this here ("__attribute__((packed)") is
     completely compiler dependent.

     All other wavefront_* types end up aligned to 32 bit values and
     still have the same (correct) size.

#else

     /* However, note that as of G++ 2.7.3.2, g++ was unable to
    correctly parse *type* __attribute__ tags. It will do the
    right thing if we use the "packed" attribute on each struct
    member, which has the same semantics anyway.
     */

#endif __GNUC__

/***************************** WARNING ********************************
  PLEASE DO NOT MODIFY THIS FILE IN ANY WAY THAT AFFECTS ITS ABILITY TO
  BE USED WITH EITHER C *OR* C++.
 **********************************************************************/

#ifndef NUM_MIDIKEYS
#define NUM_MIDIKEYS 128
#endif  NUM_MIDIKEYS

#ifndef NUM_MIDICHANNELS
#define NUM_MIDICHANNELS 16
#endif  NUM_MIDICHANNELS

/* These are very useful/important. the original wavefront interface
   was developed on a 16 bit system, where sizeof(int) = 2
   bytes. Defining things like this makes the code much more portable, and
   easier to understand without having to toggle back and forth
   between a 16-bit view of the world and a 32-bit one.
 */

typedef short INT16;
typedef unsigned short UINT16;
typedef int INT32;
typedef unsigned int UINT32;
typedef char CHAR8;
typedef unsigned char UCHAR8;

/* Pseudo-commands not part of the WaveFront command set.
   These are used for various driver controls and direct
   hardware control.
 */

#define WFC_DEBUG_DRIVER                0
#define WFC_FX_IOCTL                    1
#define WFC_PATCH_STATUS                2
#define WFC_PROGRAM_STATUS              3
#define WFC_SAMPLE_STATUS               4
#define WFC_DISABLE_INTERRUPTS          5
#define WFC_ENABLE_INTERRUPTS           6
#define WFC_INTERRUPT_STATUS            7
#define WFC_ROMSAMPLES_RDONLY           8
#define WFC_IDENTIFY_SLOT_TYPE          9

/* Wavefront synth commands
 */

#define WFC_DOWNLOAD_SAMPLE        0x80
#define WFC_DOWNLOAD_BLOCK        0x81
#define WFC_DOWNLOAD_MULTISAMPLE    0x82
#define WFC_DOWNLOAD_SAMPLE_ALIAS    0x83
#define WFC_DELETE_SAMPLE        0x84
#define WFC_REPORT_FREE_MEMORY        0x85
#define WFC_DOWNLOAD_PATCH        0x86
#define WFC_DOWNLOAD_PROGRAM        0x87
#define WFC_SET_SYNTHVOL        0x89
#define WFC_SET_NVOICES            0x8B
#define WFC_DOWNLOAD_DRUM        0x90
#define WFC_GET_SYNTHVOL        0x92
#define WFC_GET_NVOICES            0x94
#define WFC_DISABLE_CHANNEL        0x9A
#define WFC_ENABLE_CHANNEL        0x9B
#define WFC_MISYNTH_OFF            0x9D
#define WFC_MISYNTH_ON            0x9E
#define WFC_FIRMWARE_VERSION        0x9F
#define WFC_GET_NSAMPLES        0xA0
#define WFC_DISABLE_DRUM_PROGRAM    0xA2
#define WFC_UPLOAD_PATCH        0xA3
#define WFC_UPLOAD_PROGRAM        0xA4
#define WFC_SET_TUNING            0xA6
#define WFC_GET_TUNING            0xA7
#define WFC_VMIDI_ON            0xA8
#define WFC_VMIDI_OFF            0xA9
#define WFC_MIDI_STATUS            0xAA
#define WFC_GET_CHANNEL_STATUS        0xAB
#define WFC_DOWNLOAD_SAMPLE_HEADER    0xAC
#define WFC_UPLOAD_SAMPLE_HEADER    0xAD
#define WFC_UPLOAD_MULTISAMPLE        0xAE
#define WFC_UPLOAD_SAMPLE_ALIAS        0xAF
#define WFC_IDENTIFY_SAMPLE_TYPE    0xB0
#define WFC_DOWNLOAD_EDRUM_PROGRAM    0xB1
#define WFC_UPLOAD_EDRUM_PROGRAM    0xB2
#define WFC_SET_EDRUM_CHANNEL        0xB3
#define WFC_INSTOUT_LEVELS        0xB4
#define WFC_PEAKOUT_LEVELS        0xB5
#define WFC_REPORT_CHANNEL_PROGRAMS    0xB6
#define WFC_HARDWARE_VERSION        0xCF
#define WFC_UPLOAD_SAMPLE_PARAMS    0xD7
#define WFC_DOWNLOAD_OS            0xF1
#define WFC_NOOP                        0xFF

#define WF_MAX_SAMPLE   512
#define WF_MAX_PATCH    256
#define WF_MAX_PROGRAM  128

#define WF_SECTION_MAX  44   /* longest OS section length */

/* # of bytes we send to the board when sending it various kinds of
   substantive data, such as samples, patches and programs.
*/

#define WF_PROGRAM_BYTES 32
#define WF_PATCH_BYTES 132
#define WF_SAMPLE_BYTES 27
#define WF_SAMPLE_HDR_BYTES 25
#define WF_ALIAS_BYTES 25
#define WF_DRUM_BYTES 9
#define WF_MSAMPLE_BYTES 259 /* (MIDI_KEYS * 2) + 3 */

#define WF_ACK     0x80
#define WF_DMA_ACK 0x81

/* OR-values for MIDI status bits */

#define WF_MIDI_VIRTUAL_ENABLED 0x1
#define WF_MIDI_VIRTUAL_IS_EXTERNAL 0x2
#define WF_MIDI_IN_TO_SYNTH_DISABLED 0x4

/* slot indexes for struct address_info: makes code a little more mnemonic */

#define WF_SYNTH_SLOT         0
#define WF_INTERNAL_MIDI_SLOT 1
#define WF_EXTERNAL_MIDI_SLOT 2

/* Magic MIDI bytes used to switch I/O streams on the ICS2115 MPU401
   emulation. Note these NEVER show up in output from the device and
   should NEVER be used in input unless Virtual MIDI mode has been
   disabled. If they do show up as input, the results are unpredictable.
*/

#define WF_EXTERNAL_SWITCH  0xFD
#define WF_INTERNAL_SWITCH  0xF9

/* Debugging flags */

#define WF_DEBUG_CMD 0x1
#define WF_DEBUG_DATA 0x2
#define WF_DEBUG_LOAD_PATCH 0x4
#define WF_DEBUG_IO 0x8

/* WavePatch file format stuff */

#define WF_WAVEPATCH_VERSION     120;  /*  Current version number (1.2)  */
#define WF_MAX_COMMENT           64    /*  Comment length */
#define WF_NUM_LAYERS            4
#define WF_NAME_LENGTH           32
#define WF_SOURCE_LENGTH         260

#define BankFileID     "Bank"
#define DrumkitFileID  "DrumKit"
#define ProgramFileID  "Program"

struct wf_envelope
{
    UCHAR8 attack_time:7;
    UCHAR8 Unused1:1;

    UCHAR8 decay1_time:7;
    UCHAR8 Unused2:1;

    UCHAR8 decay2_time:7;
    UCHAR8 Unused3:1;

    UCHAR8 sustain_time:7;
    UCHAR8 Unused4:1;

    UCHAR8 release_time:7;
    UCHAR8 Unused5:1;

    UCHAR8 release2_time:7;
    UCHAR8 Unused6:1;

    CHAR8 attack_level;
    CHAR8 decay1_level;
    CHAR8 decay2_level;
    CHAR8 sustain_level;
    CHAR8 release_level;

    UCHAR8 attack_velocity:7;
    UCHAR8 Unused7:1;

    UCHAR8 volume_velocity:7;
    UCHAR8 Unused8:1;

    UCHAR8 keyboard_scaling:7;
    UCHAR8 Unused9:1;
};
typedef struct wf_envelope wavefront_envelope;

struct wf_lfo
{
    UCHAR8 sample_number;

    UCHAR8 frequency:7;
    UCHAR8 Unused1:1;

    UCHAR8 am_src:4;
    UCHAR8 fm_src:4;

    CHAR8 fm_amount;
    CHAR8 am_amount;
    CHAR8 start_level;
    CHAR8 end_level;

    UCHAR8 ramp_delay:7;
    UCHAR8 wave_restart:1; /* for LFO2 only */

    UCHAR8 ramp_time:7;
    UCHAR8 Unused2:1;
};
typedef struct wf_lfo wavefront_lfo;

struct wf_patch
{
    INT16  frequency_bias;         /*  ** THIS IS IN MOTOROLA FORMAT!! ** */

    UCHAR8 amplitude_bias:7;
    UCHAR8 Unused1:1;

    UCHAR8 portamento:7;
    UCHAR8 Unused2:1;

    UCHAR8 sample_number;

    UCHAR8 pitch_bend:4;
    UCHAR8 sample_msb:1;
    UCHAR8 Unused3:3;

    UCHAR8 mono:1;
    UCHAR8 retrigger:1;
    UCHAR8 nohold:1;
    UCHAR8 restart:1;
    UCHAR8 filterconfig:2; /* SDK says "not used" */
    UCHAR8 reuse:1;
    UCHAR8 reset_lfo:1;

    UCHAR8 fm_src2:4;
    UCHAR8 fm_src1:4;

    CHAR8 fm_amount1;
    CHAR8 fm_amount2;

    UCHAR8 am_src:4;
    UCHAR8 Unused4:4;

    CHAR8 am_amount;

    UCHAR8 fc1_mode:4;
    UCHAR8 fc2_mode:4;

    CHAR8 fc1_mod_amount;
    CHAR8 fc1_keyboard_scaling;
    CHAR8 fc1_bias;
    CHAR8 fc2_mod_amount;
    CHAR8 fc2_keyboard_scaling;
    CHAR8 fc2_bias;

    UCHAR8 randomizer:7;
    UCHAR8 Unused5:1;

    struct wf_envelope envelope1;
    struct wf_envelope envelope2;
    struct wf_lfo lfo1;
    struct wf_lfo lfo2;
};
typedef struct wf_patch wavefront_patch;

struct wf_layer
{
    UCHAR8 patch_number;

    UCHAR8 mix_level:7;
    UCHAR8 mute:1;

    UCHAR8 split_point:7;
    UCHAR8 play_below:1;

    UCHAR8 pan_mod_src:2;
    UCHAR8 pan_or_mod:1;
    UCHAR8 pan:4;
    UCHAR8 split_type:1;
};
typedef struct wf_layer wavefront_layer;

struct wf_program
{
    struct wf_layer layer[WF_NUM_LAYERS];
};
typedef struct wf_program wavefront_program;

struct wf_sample_offset
{
    INT32 Fraction:4;
    INT32 Integer:20;
    INT32 Unused:8;
};
typedef struct wf_sample_offset wavefront_sample_offset;

/* Sample slot types */

#define WF_ST_SAMPLE      0
#define WF_ST_MULTISAMPLE 1
#define WF_ST_ALIAS       2
#define WF_ST_EMPTY       3

/* pseudo's */

#define WF_ST_DRUM        4
#define WF_ST_PROGRAM     5
#define WF_ST_PATCH       6
#define WF_ST_SAMPLEHDR   7

#define WF_ST_MASK        0xf

/* Flags for slot status. These occupy the upper bits of the same byte
   as a sample type.
*/

#define WF_SLOT_USED      0x80   /* XXX don't rely on this being accurate */
#define WF_SLOT_FILLED    0x40
#define WF_SLOT_ROM       0x20

#define WF_SLOT_MASK      0xf0

/* channel constants */

#define WF_CH_MONO  0
#define WF_CH_LEFT  1
#define WF_CH_RIGHT 2

/* Sample formats */

#define LINEAR_16BIT 0
#define WHITE_NOISE  1
#define LINEAR_8BIT  2
#define MULAW_8BIT   3

#define WF_SAMPLE_IS_8BIT(smpl) ((smpl)->SampleResolution&2)


/*

  Because most/all of the sample data we pass in via pointers has
  never been copied (just mmap-ed into user space straight from the
  disk), it would be nice to allow handling of multi-channel sample
  data without forcing user-level extraction of the relevant bytes.

  So, we need a way of specifying which channel to use (the WaveFront
  only handles mono samples in a given slot), and the only way to do
  this without using some struct other than wavefront_sample as the
  interface is the awful hack of using the unused bits in a
  wavefront_sample:

  Val      Meaning
  ---      -------
  0        no channel selection (use channel 1, sample is MONO)
  1        use first channel, and skip one
  2        use second channel, and skip one
  3        use third channel, and skip two
  4        use fourth channel, skip three
  5        use fifth channel, skip four
  6        use six channel, skip five


  This can handle up to 4 channels, and anyone downloading >4 channels
  of sample data just to select one of them needs to find some tools
  like sox ...

  NOTE: values 0, 1 and 2 correspond to WF_CH_* above. This is
  important.

*/

#define WF_SET_CHANNEL(samp,chn) \
 (samp)->Unused1 = chn & 0x1; \
 (samp)->Unused2 = chn & 0x2; \
 (samp)->Unused3 = chn & 0x4

#define WF_GET_CHANNEL(samp) \
  (((samp)->Unused3 << 2)|((samp)->Unused2<<1)|(samp)->Unused1)

typedef struct wf_sample {
    struct wf_sample_offset sampleStartOffset;
    struct wf_sample_offset loopStartOffset;
    struct wf_sample_offset loopEndOffset;
    struct wf_sample_offset sampleEndOffset;
    INT16 FrequencyBias;
    UCHAR8 SampleResolution:2;  /* sample_format */
    UCHAR8 Unused1:1;
    UCHAR8 Loop:1;
    UCHAR8 Bidirectional:1;
    UCHAR8 Unused2:1;
    UCHAR8 Reverse:1;
    UCHAR8 Unused3:1;
} wavefront_sample;

typedef struct wf_multisample {
    INT16 NumberOfSamples;   /* log2 of the number of samples */
    INT16 SampleNumber[NUM_MIDIKEYS];
} wavefront_multisample;

typedef struct wf_alias {
    INT16 OriginalSample __attribute__ ((packed));

    struct wf_sample_offset sampleStartOffset __attribute__ ((packed));
    struct wf_sample_offset loopStartOffset __attribute__ ((packed));
    struct wf_sample_offset sampleEndOffset __attribute__ ((packed));
    struct wf_sample_offset loopEndOffset __attribute__ ((packed));

    INT16  FrequencyBias __attribute__ ((packed));

    UCHAR8 SampleResolution:2  __attribute__ ((packed));
    UCHAR8 Unused1:1  __attribute__ ((packed));
    UCHAR8 Loop:1 __attribute__ ((packed));
    UCHAR8 Bidirectional:1  __attribute__ ((packed));
    UCHAR8 Unused2:1 __attribute__ ((packed));
    UCHAR8 Reverse:1 __attribute__ ((packed));
    UCHAR8 Unused3:1 __attribute__ ((packed));

    /* This structure is meant to be padded only to 16 bits on their
       original. Of course, whoever wrote their documentation didn't
       realize that sizeof(struct) can be >=
       sum(sizeof(struct-fields)) and so thought that giving a C level
       description of the structs used in WavePatch files was
       sufficient. I suppose it was, as long as you remember the
       standard 16->32 bit issues.
    */

    UCHAR8 sixteen_bit_padding __attribute__ ((packed));
} wavefront_alias;

typedef struct wf_drum {
    UCHAR8 PatchNumber;
    UCHAR8 MixLevel:7;
    UCHAR8 Unmute:1;
    UCHAR8 Group:4;
    UCHAR8 Unused1:4;
    UCHAR8 PanModSource:2;
    UCHAR8 PanModulated:1;
    UCHAR8 PanAmount:4;
    UCHAR8 Unused2:1;
} wavefront_drum;

typedef struct wf_drumkit {
    struct wf_drum drum[NUM_MIDIKEYS];
} wavefront_drumkit;

typedef struct wf_channel_programs {
    UCHAR8 Program[NUM_MIDICHANNELS];
} wavefront_channel_programs;

/* How to get MIDI channel status from the data returned by
   a WFC_GET_CHANNEL_STATUS command (a struct wf_channel_programs)
*/

#define WF_CHANNEL_STATUS(ch,wcp) (wcp)[(ch/7)] & (1<<((ch)%7))

typedef union wf_any {
    wavefront_sample s;
    wavefront_multisample ms;
    wavefront_alias a;
    wavefront_program pr;
    wavefront_patch p;
    wavefront_drum d;
} wavefront_any;

/* Hannu Solvainen hoped that his "patch_info" struct in soundcard.h
   might work for other wave-table based patch loading situations.
   Alas, his fears were correct. The WaveFront doesn't even come with
   just "patches", but several different kind of structures that
   control the sound generation process.
 */

typedef struct wf_patch_info {

    /* the first two fields are used by the OSS "patch loading" interface
       only, and are unused by the current user-level library.
    */

    INT16   key;               /* Use WAVEFRONT_PATCH here */
    UINT16  devno;             /* fill in when sending */
    UCHAR8  subkey;            /* WF_ST_{SAMPLE,ALIAS,etc.} */

#define WAVEFRONT_FIND_FREE_SAMPLE_SLOT 999

    UINT16  number;            /* patch/sample/prog number */

    UINT32  size;              /* size of any data included in
                  one of the fields in `hdrptr', or
                  as `dataptr'.

                  NOTE: for actual samples, this is
                  the size of the *SELECTED CHANNEL*
                  even if more data is actually available.

                  So, a stereo sample (2 channels) of
                  6000 bytes total has `size' = 3000.

                  See the macros and comments for
                  WF_{GET,SET}_CHANNEL above.

                   */
    wavefront_any *hdrptr;      /* user-space ptr to hdr bytes */
    UINT16 *dataptr;            /* actual sample data */

    wavefront_any hdr;          /* kernel-space copy of hdr bytes */
} wavefront_patch_info;

/* The maximum number of bytes we will ever move to or from user space
   in response to a WFC_* command.  This obviously doesn't cover
   actual sample data.
*/

#define WF_MAX_READ sizeof(wavefront_multisample)
#define WF_MAX_WRITE sizeof(wavefront_multisample)

/*
   This allows us to execute any WF command except the download/upload
   ones, which are handled differently due to copyin/copyout issues as
   well as data-nybbling to/from the card.
 */

typedef struct wavefront_control {
    int cmd;                           /* WFC_* */
    char status;                       /* return status to user-space */
    unsigned char rbuf[WF_MAX_READ];   /* bytes read from card */
    unsigned char wbuf[WF_MAX_WRITE];  /* bytes written to card */
} wavefront_control;

#define WFCTL_WFCMD    0x1
#define WFCTL_LOAD_SPP 0x2

/* Modulator table */

#define WF_MOD_LFO1      0
#define WF_MOD_LFO2      1
#define WF_MOD_ENV1      2
#define WF_MOD_ENV2      3
#define WF_MOD_KEYBOARD  4
#define WF_MOD_LOGKEY    5
#define WF_MOD_VELOCITY  6
#define WF_MOD_LOGVEL    7
#define WF_MOD_RANDOM    8
#define WF_MOD_PRESSURE  9
#define WF_MOD_MOD_WHEEL 10
#define WF_MOD_1         WF_MOD_MOD_WHEEL
#define WF_MOD_BREATH    11
#define WF_MOD_2         WF_MOD_BREATH
#define WF_MOD_FOOT      12
#define WF_MOD_4         WF_MOD_FOOT
#define WF_MOD_VOLUME    13
#define WF_MOD_7         WF_MOD_VOLUME
#define WF_MOD_PAN       14
#define WF_MOD_10        WF_MOD_PAN
#define WF_MOD_EXPR      15
#define WF_MOD_11        WF_MOD_EXPR

/* FX-related material */

typedef struct wf_fx_info {
    int request;             /* see list below */
    int data[4];             /* we don't need much */
} wavefront_fx_info;

/* support for each of these will be forthcoming once I or someone
   else has figured out which of the addresses on page 6 and page 7 of
   the YSS225 control each parameter. Incidentally, these come from
   the Windows driver interface, but again, Turtle Beach didn't
   document the API to use them.
*/

#define WFFX_SETOUTGAIN                0
#define WFFX_SETSTEREOOUTGAIN        1
#define WFFX_SETREVERBIN1GAIN        2
#define WFFX_SETREVERBIN2GAIN        3
#define WFFX_SETREVERBIN3GAIN        4
#define WFFX_SETCHORUSINPORT        5
#define WFFX_SETREVERBIN1PORT        6
#define WFFX_SETREVERBIN2PORT        7
#define WFFX_SETREVERBIN3PORT        8
#define WFFX_SETEFFECTPORT        9
#define WFFX_SETAUXPORT                10
#define WFFX_SETREVERBTYPE        11
#define WFFX_SETREVERBDELAY        12
#define WFFX_SETCHORUSLFO        13
#define WFFX_SETCHORUSPMD        14
#define WFFX_SETCHORUSAMD        15
#define WFFX_SETEFFECT                16
#define WFFX_SETBASEALL                17
#define WFFX_SETREVERBALL        18
#define WFFX_SETCHORUSALL        20
#define WFFX_SETREVERBDEF        22
#define WFFX_SETCHORUSDEF        23
#define WFFX_DELAYSETINGAIN        24
#define WFFX_DELAYSETFBGAIN            25
#define WFFX_DELAYSETFBLPF        26
#define WFFX_DELAYSETGAIN        27
#define WFFX_DELAYSETTIME        28
#define WFFX_DELAYSETFBTIME        29
#define WFFX_DELAYSETALL        30
#define WFFX_DELAYSETDEF        32
#define WFFX_SDELAYSETINGAIN        33
#define WFFX_SDELAYSETFBGAIN        34
#define WFFX_SDELAYSETFBLPF        35
#define WFFX_SDELAYSETGAIN        36
#define WFFX_SDELAYSETTIME        37
#define WFFX_SDELAYSETFBTIME        38
#define WFFX_SDELAYSETALL        39
#define WFFX_SDELAYSETDEF        41
#define WFFX_DEQSETINGAIN        42
#define WFFX_DEQSETFILTER        43
#define WFFX_DEQSETALL                44
#define WFFX_DEQSETDEF                46
#define WFFX_MUTE                47
#define WFFX_FLANGESETBALANCE            48
#define WFFX_FLANGESETDELAY        49
#define WFFX_FLANGESETDWFFX_TH        50
#define WFFX_FLANGESETFBGAIN        51
#define WFFX_FLANGESETINGAIN        52
#define WFFX_FLANGESETLFO        53
#define WFFX_FLANGESETALL        54
#define WFFX_FLANGESETDEF        56
#define WFFX_PITCHSETSHIFT        57
#define WFFX_PITCHSETBALANCE        58
#define WFFX_PITCHSETALL        59
#define WFFX_PITCHSETDEF        61
#define WFFX_SRSSETINGAIN        62
#define WFFX_SRSSETSPACE        63
#define WFFX_SRSSETCENTER        64
#define WFFX_SRSSETGAIN                65
#define WFFX_SRSSETMODE                66
#define WFFX_SRSSETDEF                68

/* Allow direct user-space control over FX memory/coefficient data.
   In theory this could be used to download the FX microprogram,
   but it would be a little slower, and involve some wierd code.
 */

#define WFFX_MEMSET              69

#endif __wavefront_h__