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add some utility functions to Buffers and BufferSets to allow some kinds of debugging easily

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This commit is contained in:
Paul Davis 2024-05-14 12:25:58 -06:00
parent ac47688023
commit 86c3b70c54
6 changed files with 33 additions and 0 deletions
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2
libs/ardour/ardour/audio_buffer.h
View file

@ -42,6 +42,8 @@ public:
*/ */
void silence (samplecnt_t len, samplecnt_t offset = 0); void silence (samplecnt_t len, samplecnt_t offset = 0);
bool silent_data() const;
/** Copy samples from src array starting at src_offset into self starting at dst_offset /** Copy samples from src array starting at src_offset into self starting at dst_offset
* @param src array to read from * @param src array to read from
* @param len number of samples to copy * @param len number of samples to copy

3
libs/ardour/ardour/buffer.h
View file

@ -69,6 +69,9 @@ public:
/** Clear (eg zero, or empty) buffer */ /** Clear (eg zero, or empty) buffer */
virtual void silence (samplecnt_t len, samplecnt_t offset = 0) = 0; virtual void silence (samplecnt_t len, samplecnt_t offset = 0) = 0;
/* return true if all data is silent (or for MIDI-like, non-existent */
virtual bool silent_data () const = 0;
/** Clear the entire buffer */ /** Clear the entire buffer */
virtual void clear() { silence(_capacity, 0); } virtual void clear() { silence(_capacity, 0); }

3
libs/ardour/ardour/buffer_set.h
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@ -82,6 +82,9 @@ public:
void ensure_buffers(DataType type, size_t num_buffers, size_t buffer_capacity); void ensure_buffers(DataType type, size_t num_buffers, size_t buffer_capacity);
void ensure_buffers(const ChanCount& chns, size_t buffer_capacity); void ensure_buffers(const ChanCount& chns, size_t buffer_capacity);
/* Returns true if Buffer::silent_data() is true for all buffers */
bool silent_data() const;
const ChanCount& available() const { return _available; } const ChanCount& available() const { return _available; }
ChanCount& available() { return _available; } ChanCount& available() { return _available; }

1
libs/ardour/ardour/midi_buffer.h
View file

@ -59,6 +59,7 @@ public:
void resize(size_t); void resize(size_t);
size_t size() const { return _size; } size_t size() const { return _size; }
bool empty() const { return _size == 0; } bool empty() const { return _size == 0; }
bool silent_data () const { return _size == 0; }
bool insert_event(const Evoral::Event<TimeType>& event); bool insert_event(const Evoral::Event<TimeType>& event);
bool merge_in_place(const MidiBuffer &other); bool merge_in_place(const MidiBuffer &other);

11
libs/ardour/audio_buffer.cc
View file

@ -81,6 +81,17 @@ AudioBuffer::check_silence (pframes_t nframes, pframes_t& n) const
return true; return true;
} }
bool
AudioBuffer::silent_data () const
{
for (pframes_t n = 0; n < _capacity; ++n) {
if (_data[n]) {
return false;
}
}
return true;
}
void void
AudioBuffer::silence (samplecnt_t len, samplecnt_t offset) { AudioBuffer::silence (samplecnt_t len, samplecnt_t offset) {

13
libs/ardour/buffer_set.cc
View file

@ -229,6 +229,19 @@ BufferSet::ensure_buffers(const ChanCount& chns, size_t buffer_capacity)
} }
} }
bool
BufferSet::silent_data () const
{
for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) {
for (BufferSet::const_iterator i = begin (*t); i != end (*t); ++i) {
if (!i->silent_data ()) {
return false;
}
}
}
return true;
}
/** Get the capacity (size) of the available buffers of the given type. /** Get the capacity (size) of the available buffers of the given type.
* *
* All buffers of a certain type always have the same capacity. * All buffers of a certain type always have the same capacity.