make note overlap resolution store side effects in a DiffCommand, and add its changes...
[ardour.git] / libs / ardour / midi_ring_buffer.cc
index 007d5271c8ee82d31d679ca911c05de991dea740..2999621b70918d731be7b2517ff8dac685b9ad11 100644 (file)
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
 
+#include "pbd/compose.h"
+
+#include "ardour/debug.h"
 #include "ardour/midi_ring_buffer.h"
 #include "ardour/midi_buffer.h"
 #include "ardour/event_type_map.h"
 
 using namespace std;
-
-namespace ARDOUR {
+using namespace ARDOUR;
+using namespace PBD;
 
 /** Read a block of MIDI events from buffer into a MidiBuffer.
  *
@@ -43,18 +46,18 @@ MidiRingBuffer<T>::read(MidiBuffer& dst, nframes_t start, nframes_t end, nframes
 
        size_t count = 0;
 
-       //cerr << "MRB read " << start << " .. " << end << " + " << offset << endl;
-
        while (this->read_space() >= sizeof(T) + sizeof(Evoral::EventType) + sizeof(uint32_t)) {
 
                this->full_peek(sizeof(T), (uint8_t*)&ev_time);
 
-               if (ev_time > end) {
-                       //cerr << "MRB event @ " << ev_time << " past end @ " << end << endl;
+               if (ev_time >= end) {
+                       DEBUG_TRACE (DEBUG::MidiDiskstreamIO, string_compose ("MRB event @ %1 past end @ %2\n", ev_time, end));
                        break;
                } else if (ev_time < start) {
-                       //cerr << "MRB event @ " << ev_time << " before start @ " << start << endl;
+                       DEBUG_TRACE (DEBUG::MidiDiskstreamIO, string_compose ("MRB event @ %1 before start @ %2\n", ev_time, start));
                        break;
+               } else {
+                       DEBUG_TRACE (DEBUG::MidiDiskstreamIO, string_compose ("MRB event @ %1 in range %2 .. %3\n", ev_time, start, end));
                }
 
                bool success = read_prefix(&ev_time, &ev_type, &ev_size);
@@ -66,8 +69,8 @@ MidiRingBuffer<T>::read(MidiBuffer& dst, nframes_t start, nframes_t end, nframes
                // This event marks a loop end (i.e. the next event's timestamp will be non-monotonic)
                if (ev_type == LoopEventType) {
                        /*ev_time -= start;
-                       ev_time += offset;
-                       cerr << "MRB loop boundary @ " << ev_time << endl;*/
+                         ev_time += offset;*/
+                       cerr << "MRB loop boundary @ " << ev_time << endl;
 
                        // Return without reading data or writing to buffer (loop events have no data)
                        // FIXME: This is not correct, loses events after the loop this cycle
@@ -82,16 +85,12 @@ MidiRingBuffer<T>::read(MidiBuffer& dst, nframes_t start, nframes_t end, nframes
                if (is_channel_event(status) && get_channel_mode() == FilterChannels) {
                        const uint8_t channel = status & 0x0F;
                        if (!(get_channel_mask() & (1L << channel))) {
-                               //cerr << "MRB skipping event due to channel mask" << endl;
+                               // cerr << "MRB skipping event due to channel mask" << endl;
                                this->skip(ev_size); // Advance read pointer to next event
                                continue;
                        }
                }
 
-               /*cerr << "MRB " << this << " - Reading event, time = "
-                       << ev_time << " - " << start << " => " << ev_time - start
-                       << ", size = " << ev_size << endl;*/
-
                assert(ev_time >= start);
                ev_time -= start;
                ev_time += offset;
@@ -100,18 +99,24 @@ MidiRingBuffer<T>::read(MidiBuffer& dst, nframes_t start, nframes_t end, nframes
                uint8_t* write_loc = dst.reserve(ev_time, ev_size);
                if (write_loc == NULL) {
                        cerr << "MRB: Unable to reserve space in buffer, event skipped";
+                       this->skip (ev_size); // Advance read pointer to next event
                        continue;
                }
-               
+
                // write MIDI buffer contents
-               success = Evoral::EventRingBuffer<T>::full_read(ev_size, write_loc);
-               
-#if 0
-               cerr << "wrote MidiEvent to Buffer: " << hex;
+               success = read_contents (ev_size, write_loc);
+
+#ifndef NDEBUG
+                DEBUG_STR_DECL(a);
+                DEBUG_STR_APPEND(a, string_compose ("wrote MidiEvent to Buffer (time=%1, start=%2 offset=%3)", ev_time, start, offset));
                for (size_t i=0; i < ev_size; ++i) {
-                       cerr << (int) write_loc[i] << ' ';
+                       DEBUG_STR_APPEND(a,hex);
+                       DEBUG_STR_APPEND(a,"0x");
+                       DEBUG_STR_APPEND(a,(int)write_loc[i]);
+                        DEBUG_STR_APPEND(a,' ');
                }
-               cerr << dec << endl;
+                DEBUG_STR_APPEND(a,'\n');
+                DEBUG_TRACE (DEBUG::MidiDiskstreamIO, DEBUG_STR(a).str());
 #endif
 
                if (success) {
@@ -123,11 +128,87 @@ MidiRingBuffer<T>::read(MidiBuffer& dst, nframes_t start, nframes_t end, nframes
                        cerr << "WARNING: error reading event contents from MIDI ring" << endl;
                }
        }
-       
+
        return count;
 }
+template<typename T>
+void
+MidiRingBuffer<T>::dump(ostream& str)
+{
+       size_t rspace;
 
-template class MidiRingBuffer<nframes_t>;
+       if ((rspace = this->read_space()) == 0) {
+               str << "MRB::dump: empty\n";
+               return;
+       }
+
+       T                 ev_time;
+       Evoral::EventType ev_type;
+       uint32_t          ev_size;
+       size_t read_ptr = g_atomic_int_get (&this->_read_ptr);
+
+       str << "Dump @ " << read_ptr << endl;
+
+       while (1) {
+               uint8_t* wp;
+               uint8_t* data;
+               size_t write_ptr;
+
+#define space(r,w) ((w > r) ? (w - r) : ((w - r + this->_size) % this->_size))
+
+               write_ptr  = g_atomic_int_get (&this->_write_ptr);
+               if (space (read_ptr, write_ptr) < sizeof (T)) {
+                       break;
+               }
 
-} // namespace ARDOUR
+               wp = &this->_buf[read_ptr];
+               memcpy (&ev_time, wp, sizeof (T));
+               read_ptr = (read_ptr + sizeof (T)) % this->_size;
+               str << "time " << ev_time;
+
+               write_ptr  = g_atomic_int_get (&this->_write_ptr);
+               if (space (read_ptr, write_ptr) < sizeof (ev_type)) {
+                       break;
+               }
+
+               wp = &this->_buf[read_ptr];
+               memcpy (&ev_type, wp, sizeof (ev_type));
+               read_ptr = (read_ptr + sizeof (ev_type)) % this->_size;
+               str << " type " << ev_type;
+
+               write_ptr  = g_atomic_int_get (&this->_write_ptr);
+               if (space (read_ptr, write_ptr) < sizeof (ev_size)) {
+                       str << "!OUT!\n";
+                       break;
+               }
+
+               wp = &this->_buf[read_ptr];
+               memcpy (&ev_size, wp, sizeof (ev_size));
+               read_ptr = (read_ptr + sizeof (ev_size)) % this->_size;
+               str << " size " << ev_size;
+
+               write_ptr  = g_atomic_int_get (&this->_write_ptr);
+               if (space (read_ptr, write_ptr) < ev_size) {
+                       str << "!OUT!\n";
+                       break;
+               }
+
+               data = new uint8_t[ev_size];
+
+               wp = &this->_buf[read_ptr];
+               memcpy (data, wp, ev_size);
+               read_ptr = (read_ptr + ev_size) % this->_size;
+
+               for (uint32_t i = 0; i != ev_size; ++i) {
+                       str << ' ' << hex << (int) data[i] << dec;
+               }
+
+               str << endl;
+
+               delete [] data;
+       }
+}
+
+
+template class MidiRingBuffer<nframes_t>;