dxd - dynax driver framework 2.1.0d71
cross platform open source driver development framework
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USB MIDI packetizer. More...
#include <dx_usb_audio.h>
Classes | |
union | msg |
USB MIDI endpoint element types: defining the element size for a single USB MIDI pipe request. More... | |
Public Member Functions | |
size_t | decode (uint64_t &rx, union msg &msg, uint8_t cable) |
USB MIDI msg word to OS MIDI stream format decoder. | |
uint64_t | empty () const |
uint64_t | empty (uint64_t position) const |
bool | encode (const uint8_t *os_midi_package, size_t length, uint8_t cable) |
OS MIDI stream to USB MIDI msg word format encoder. | |
template<typename ext_t , typename circular_t = ext_t> | |
hide_if_ptr< ext_t > | force_read (ext_t *const *dst, uint64_t bulk=1, uint32_t channels_circular=1, uint32_t channels_dst=1, uint32_t circular_offset=0, uint32_t interleaved=1) |
template<typename ext_t , typename circular_t = ext_t> | |
hide_if_ptr< ext_t > | force_read (ext_t *dst, uint64_t bulk=1, uint32_t channels_circular=1, uint32_t circular_offset=0, uint32_t interleaved=1) |
template<typename ext_t , typename circular_t = ext_t> | |
bool | force_read (volatile uint64_t &position, ext_t *const *dst, uint64_t bulk, uint32_t channels_circular=1, uint32_t channels_dst=1, uint32_t circular_offset=0, uint32_t interleaved=1) |
multi channel interleaved bulk read from circular buffer with format conversion if applicable | |
template<typename ext_t , typename circular_t = ext_t> | |
hide_if_ptr< ext_t > | force_read (volatile uint64_t &position, ext_t *dst, uint64_t bulk=1, uint32_t channels_circular=1, uint32_t circular_offset=0, uint32_t interleaved=1) |
template<typename ext_t , typename circular_t = ext_t> | |
bool | force_write (const ext_t *const *src, uint64_t bulk=1, uint32_t channels_circular=1, uint32_t channels_src=1, uint32_t circular_offset=0, uint32_t interleaved=1) |
template<typename ext_t , typename circular_t = ext_t> | |
hide_if_ptr< ext_t > | force_write (const ext_t *src, uint64_t bulk=1, uint32_t channels_circular=1, uint32_t circular_offset=0, uint32_t interleaved=1) |
template<typename data_t > | |
bool | force_write (data_t *const *const *src, uint64_t clients, uint64_t channels, uint64_t bulk) |
template<typename circular_t , typename src_t > | |
bool | force_write (src_t *const *const *src, uint32_t clients, uint32_t channels=1, uint64_t bulk=1) |
multi channel multi client bulk mix into circular buffer with format conversion if applicable src[client][channel][sample] | |
template<typename ext_t , typename circular_t = ext_t> | |
bool | force_write (volatile uint64_t &position, const ext_t *const *src, uint64_t bulk, uint32_t channels_circular=1, uint32_t channels_src=1, uint32_t circular_offset=0, uint32_t interleaved=1) |
multi channel interleaved bulk write into circular buffer with format conversion if applicable | |
template<typename ext_t , typename circular_t = ext_t> | |
hide_if_ptr< ext_t > | force_write (volatile uint64_t &position, const ext_t *src, uint64_t bulk=1, uint32_t channels_circular=1, uint32_t circular_offset=0, uint32_t interleaved=1) |
single channel convenience access templates | |
void | initialize () |
void | initialize (uint64_t backingstore_size) |
uint64_t | loop () const |
template<typename callback_t > | |
void | move (callback_t &callback, uint64_t max) |
template<typename data_t > | |
hide_if_ptr< data_t > | operator<< (const data_t &src) |
template<typename data_t > | |
hide_if_ptr< data_t > | operator>> (data_t &dst) |
template<typename ext_t , typename circular_t = ext_t> | |
hide_if_ptr< ext_t > | read (ext_t *const *dst, uint64_t bulk=1, uint32_t channels_circular=1, uint32_t channels_dst=1, uint32_t circular_offset=0, uint32_t interleaved=1) |
template<typename ext_t , typename circular_t = ext_t> | |
hide_if_ptr< ext_t > | read (ext_t *dst, uint64_t bulk=1, uint32_t channels_circular=1, uint32_t circular_offset=0, uint32_t interleaved=1) |
template<typename ext_t , typename circular_t = ext_t> | |
hide_if_ptr< ext_t > | read (volatile uint64_t &position, ext_t *const *dst, uint64_t bulk=1, uint32_t channels_circular=1, uint32_t channels_dst=1, uint32_t circular_offset=0, uint32_t interleaved=1) |
template<typename ext_t , typename circular_t = ext_t> | |
hide_if_ptr< ext_t > | read (volatile uint64_t &position, ext_t *dst, uint64_t bulk=1, uint32_t channels_circular=1, uint32_t circular_offset=0, uint32_t interleaved=1) |
template<typename dst_t = uint8_t> | |
dst_t * | simulate_read (uint64_t bulk=1) |
template<typename dst_t = uint8_t> | |
dst_t * | simulate_read (volatile uint64_t &position, uint64_t bulk) |
uint8_t * | simulate_write (uint64_t bulk) |
simulate write by advancing write idx and take care of wrap write optimization | |
uint64_t | used () const |
uint64_t | used (uint64_t position) const |
template<typename ext_t , typename circular_t = ext_t> | |
bool | write (const ext_t *const *src, uint64_t bulk=1, uint32_t channels_circular=1, uint32_t channels_src=1, uint32_t circular_offset=0, uint32_t interleaved=1) |
template<typename ext_t , typename circular_t = ext_t> | |
hide_if_ptr< ext_t > | write (const ext_t *src, uint64_t bulk=1, uint32_t channels_circular=1, uint32_t circular_offset=0, uint32_t interleaved=1) |
template<typename ext_t , typename circular_t = ext_t> | |
bool | write (volatile uint64_t &position, const ext_t *const *src, uint64_t bulk=1, uint32_t channels_circular=1, uint32_t channels_src=1, uint32_t circular_offset=0, uint32_t interleaved=1) |
bulk write into circular buffer with format conversion if applicable | |
template<typename ext_t , typename circular_t = ext_t> | |
hide_if_ptr< ext_t > | write (volatile uint64_t &position, const ext_t *src, uint64_t bulk=1, uint32_t channels_circular=1, uint32_t circular_offset=0, uint32_t interleaved=1) |
Public Attributes | ||
struct { | ||
volatile uint64_t count | ||
cycle counter More... | ||
volatile uint64_t reference | ||
sample reference of taken timestamp More... | ||
volatile uint64_t size | ||
cycle length in bytes (each cycle length bytes a new timestamp is generated) More... | ||
volatile int64_t timestamp | ||
timestamp of current timestamp cycle More... | ||
} | cycle | |
uint8_t | data [1] | |
volatile uint64_t | dropout | |
dropout counter | ||
volatile uint64_t | rx | |
single consumers current read index | ||
uint64_t | size | |
size of buffer in bytes | ||
volatile int64_t | timestamp | |
current rx/tx timestamp | ||
volatile uint64_t | tx | |
producers current write index | ||
Static Public Attributes | |
static constexpr format | any = {} |
static constexpr format | audio = {.audio= true,} |
static constexpr format | float32 = {.audio= true, .real=true, .resolution= 32, .size= sizeof(float),} |
static constexpr format | float64 = {.audio= true, .real=true, .resolution= 64, .size= sizeof(double),} |
static constexpr format | invalid = {} |
static constexpr format | midi = {.midi= true,} |
static constexpr format | pcm16 = {.audio= true, .resolution= 16, .size= sizeof(int16_t),} |
static constexpr format | pcm24 = {.audio= true, .resolution= 24, .size= sizeof(dx::int24),} |
static constexpr format | pcm24in32hi = {.audio= true, .resolution= 24, .size= sizeof(int32_t),} |
static constexpr format | pcm24in32lo = {.audio= true, .resolution= 24, .size= sizeof(int32_t), .alignment= format::alignment::low,} |
static constexpr format | pcm32 = {.audio= true, .resolution= 32, .size= sizeof(int32_t),} |
USB MIDI packetizer.
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inline |
USB MIDI msg word to OS MIDI stream format decoder.
Pops a corresponding MIDI msg from the backing store
filters MIDI data only for this cable number and ignores: CIN misc function, future use & cable events,
generates event size out of USB-MIDI CIN (code index) classification look-up table,
cable | USB MIDI cable number |
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inlineinherited |
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OS MIDI stream to USB MIDI msg word format encoder.
Encodes USB midi message from OS MIDI package and pushes it to USB MIDI backingstore buffer. It does not signal the buffer though so encode can be called for multiple MIDI packages and then manually signalled together. Although generally unusual handles SYSEX midi and any combination of general MIDI and SYSEX in the same OS package.
checks OS MIDI msg type validy,
handles SYSEX data
checks for sysex termination prior end of os_midi_stream
checks if USB SYSEX msg fits and pushes msg to the backingstore without signalization.
handles general USB MIDI messages
computes USB MIDI msg nibbles,
checks OS MIDI msg size,
selects MIDI cable number and synthesize USB MIDI msg word,
checks if USB MIDI msg fits and pushes msg to the backingstore without signalization.
os_midi_package | OS MIDI package |
length | length of the OS MIDI package |
cable | USB MIDI cable number |
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multi channel interleaved bulk read from circular buffer with format conversion if applicable
return true if enough data is available in circular space
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multi channel multi client bulk mix into circular buffer with format conversion if applicable src[client][channel][sample]
return true if data fit into empty space
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multi channel interleaved bulk write into circular buffer with format conversion if applicable
return true if data fit into circular space false if data fit not or older data had to be overwritten
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single channel convenience access templates
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simulate write by advancing write idx and take care of wrap write optimization
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bulk write into circular buffer with format conversion if applicable
return true if data fit into empty space
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cycle counter
struct { ... } dx::circular::cycle |
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dropout counter
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sample reference of taken timestamp
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single consumers current read index
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size of buffer in bytes
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cycle length in bytes (each cycle length bytes a new timestamp is generated)
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current rx/tx timestamp
timestamp of current timestamp cycle
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producers current write index
(c) copyright 2009 dynamic acoustics e.U. | generated on Wed Oct 2 2024 |