#include <iostream>
#include <algorithm>
-#include "evoral/EventRingBuffer.hpp"
-
+#include "ardour/event_ring_buffer.h"
+#include "ardour/libardour_visibility.h"
#include "ardour/types.h"
#include "ardour/midi_state_tracker.h"
* [timestamp][type][size][size bytes of raw MIDI][timestamp][type][size](etc...)
*/
template<typename T>
-class MidiRingBuffer : public Evoral::EventRingBuffer<T> {
+class /*LIBARDOUR_API*/ MidiRingBuffer : public EventRingBuffer<T> {
public:
- /** @param size Size in bytes.
- */
- MidiRingBuffer(size_t size)
- : Evoral::EventRingBuffer<T>(size)
- , _channel_mask(0x0000FFFF)
- {}
+ /** @param size Size in bytes. */
+ MidiRingBuffer(size_t size) : EventRingBuffer<T>(size) {}
inline bool read_prefix(T* time, Evoral::EventType* type, uint32_t* size);
inline bool read_contents(uint32_t size, uint8_t* buf);
- size_t read(MidiBuffer& dst, framepos_t start, framepos_t end, framecnt_t offset=0, bool stop_on_overflow_in_destination=false);
- inline uint32_t write(T time, Evoral::EventType type, uint32_t size, const uint8_t* buf);
+ size_t read(MidiBuffer& dst, samplepos_t start, samplepos_t end, samplecnt_t offset=0, bool stop_on_overflow_in_destination=false);
+ size_t skip_to(samplepos_t start);
void dump(std::ostream& dst);
- void flush (framepos_t start, framepos_t end);
-
- /** Set the channel filtering mode.
- * @param mask If mode is FilterChannels, each bit represents a midi channel:
- * bit 0 = channel 0, bit 1 = channel 1 etc. the read and write methods will only
- * process events whose channel bit is 1.
- * If mode is ForceChannel, mask is simply a channel number which all events will
- * be forced to while reading.
- */
- void set_channel_mode(ChannelMode mode, uint16_t mask) {
- g_atomic_int_set(&_channel_mask, (uint32_t(mode) << 16) | uint32_t(mask));
- }
-
- ChannelMode get_channel_mode() const {
- return static_cast<ChannelMode>((g_atomic_int_get(&_channel_mask) & 0xFFFF0000) >> 16);
- }
-
- uint16_t get_channel_mask() const {
- return g_atomic_int_get(&_channel_mask) & 0x0000FFFF;
- }
+ void flush (samplepos_t start, samplepos_t end);
void reset_tracker ();
- void loop_resolve (MidiBuffer& dst, framepos_t);
-
-protected:
- inline bool is_channel_event(uint8_t event_type_byte) {
- // mask out channel information
- event_type_byte &= 0xF0;
- // midi channel events range from 0x80 to 0xE0
- return (0x80 <= event_type_byte) && (event_type_byte <= 0xE0);
- }
-
- inline bool is_note_on(uint8_t event_type_byte) {
- // mask out channel information
- return (event_type_byte & 0xF0) == MIDI_CMD_NOTE_ON;
- }
-
- inline bool is_note_off(uint8_t event_type_byte) {
- // mask out channel information
- return (event_type_byte & 0xF0) == MIDI_CMD_NOTE_OFF;
- }
+ void resolve_tracker (MidiBuffer& dst, samplepos_t);
+ void resolve_tracker (Evoral::EventSink<samplepos_t>& dst, samplepos_t);
private:
- volatile uint32_t _channel_mask; // 16 bits mode, 16 bits mask
MidiStateTracker _tracker;
};
return PBD::RingBufferNPT<uint8_t>::read(buf, size) == size;
}
-template<typename T>
-inline uint32_t
-MidiRingBuffer<T>::write(T time, Evoral::EventType type, uint32_t size, const uint8_t* buf)
-{
- assert(size > 0);
- uint8_t status = buf[0];
-
- // Ignore event if it doesn't match channel filter
- if (is_channel_event(status)) {
- ChannelMode mode = get_channel_mode();
- if (mode == FilterChannels) {
- const uint8_t channel = status & 0x0F;
- if (!(get_channel_mask() & (1L << channel))) {
- return 0;
- }
- } else if (mode == ForceChannel) {
- uint8_t* tmpbuf = (uint8_t*) malloc(size);
- assert(tmpbuf);
- memcpy(tmpbuf, buf, size);
-
- tmpbuf[0] = (tmpbuf[0] & 0xF0) | (get_channel_mask() & 0x0F);
-
- uint32_t bytes_written = Evoral::EventRingBuffer<T>::write(time, type, size, tmpbuf);
- free(tmpbuf);
- return bytes_written;
- }
- }
-
- return Evoral::EventRingBuffer<T>::write(time, type, size, buf);
-}
-
-
} // namespace ARDOUR
#endif // __ardour_midi_ring_buffer_h__