Optimize automation-event process splitting
[ardour.git] / libs / ardour / ardour / audiosource.h
index cbdcd296af6152e4f07abbec7af4754c04f699f7..6df41462598faa69f520b02ca2dfda0514279f03 100644 (file)
 #define __ardour_audio_source_h__
 
 #include <boost/shared_ptr.hpp>
+#include <boost/shared_array.hpp>
 #include <boost/enable_shared_from_this.hpp>
 
 #include <time.h>
 
 #include <glibmm/threads.h>
 #include <boost/function.hpp>
+#include <boost/scoped_array.hpp>
 
 #include "ardour/source.h"
 #include "ardour/ardour.h"
 #include "ardour/readable.h"
-#include "pbd/file_manager.h"
 #include "pbd/stateful.h"
 #include "pbd/xml++.h"
 
 namespace ARDOUR {
 
-class AudioSource : virtual public Source,
+class LIBARDOUR_API AudioSource : virtual public Source,
                public ARDOUR::Readable,
                public boost::enable_shared_from_this<ARDOUR::AudioSource>
 {
   public:
-       AudioSource (Session&, std::string name);
+       AudioSource (Session&, const std::string& name);
        AudioSource (Session&, const XMLNode&);
        virtual ~AudioSource ();
 
-       framecnt_t readable_length() const { return _length; }
+       samplecnt_t readable_length() const { return _length; }
        virtual uint32_t n_channels()      const { return 1; }
 
        virtual bool       empty() const;
-       framecnt_t length (framepos_t pos) const;
-       void       update_length (framecnt_t cnt);
+       samplecnt_t length (samplepos_t pos) const;
+       void       update_length (samplecnt_t cnt);
 
-       virtual framecnt_t available_peaks (double zoom) const;
+       virtual samplecnt_t available_peaks (double zoom) const;
 
-       virtual framecnt_t read (Sample *dst, framepos_t start, framecnt_t cnt, int channel=0) const;
-       virtual framecnt_t write (Sample *src, framecnt_t cnt);
+       virtual samplecnt_t read (Sample *dst, samplepos_t start, samplecnt_t cnt, int channel=0) const;
+       virtual samplecnt_t write (Sample *src, samplecnt_t cnt);
 
        virtual float sample_rate () const = 0;
 
-       virtual void mark_streaming_write_completed ();
+       virtual void mark_streaming_write_completed (const Lock& lock);
 
        virtual bool can_truncate_peaks() const { return true; }
 
        void set_captured_for (std::string str) { _captured_for = str; }
        std::string captured_for() const { return _captured_for; }
 
-       int read_peaks (PeakData *peaks, framecnt_t npeaks,
-                       framepos_t start, framecnt_t cnt, double samples_per_visual_peak) const;
+       int read_peaks (PeakData *peaks, samplecnt_t npeaks,
+                       samplepos_t start, samplecnt_t cnt, double samples_per_visual_peak) const;
 
        int  build_peaks ();
        bool peaks_ready (boost::function<void()> callWhenReady, PBD::ScopedConnection** connection_created_if_not_ready, PBD::EventLoop* event_loop) const;
 
        mutable PBD::Signal0<void>  PeaksReady;
-       mutable PBD::Signal2<void,framepos_t,framepos_t>  PeakRangeReady;
+       mutable PBD::Signal2<void,samplepos_t,samplepos_t>  PeakRangeReady;
 
        XMLNode& get_state ();
        int set_state (const XMLNode&, int version);
@@ -95,6 +96,7 @@ class AudioSource : virtual public Source,
        }
 
        virtual int setup_peakfile () { return 0; }
+       int close_peakfile ();
 
        int prepare_for_peakfile_writes ();
        void done_with_peakfile_writes (bool done = true);
@@ -102,52 +104,48 @@ class AudioSource : virtual public Source,
        /** @return true if the each source sample s must be clamped to -1 < s < 1 */
        virtual bool clamped_at_unity () const = 0;
 
-       static void allocate_working_buffers (framecnt_t framerate);
+       static void allocate_working_buffers (samplecnt_t framerate);
 
   protected:
        static bool _build_missing_peakfiles;
        static bool _build_peakfiles;
 
-       static size_t _working_buffers_size;
-
        /* these collections of working buffers for supporting
           playlist's reading from potentially nested/recursive
           sources assume SINGLE THREADED reads by the butler
           thread, or a lock around calls that use them.
        */
 
-       static std::vector<boost::shared_ptr<Sample> > _mixdown_buffers;
-       static std::vector<boost::shared_ptr<gain_t> > _gain_buffers;
-        static Glib::Threads::Mutex    _level_buffer_lock;
+       static std::vector<boost::shared_array<Sample> > _mixdown_buffers;
+       static std::vector<boost::shared_array<gain_t> > _gain_buffers;
+       static Glib::Threads::Mutex    _level_buffer_lock;
 
-       static void ensure_buffers_for_level (uint32_t, framecnt_t);
-       static void ensure_buffers_for_level_locked (uint32_t, framecnt_t);
+       static void ensure_buffers_for_level (uint32_t, samplecnt_t);
+       static void ensure_buffers_for_level_locked (uint32_t, samplecnt_t);
 
-       framecnt_t           _length;
-       std::string         peakpath;
+       samplecnt_t           _length;
+       std::string         _peakpath;
        std::string        _captured_for;
 
-       int initialize_peakfile (bool newfile, std::string path);
+       int initialize_peakfile (const std::string& path, const bool in_session = false);
        int build_peaks_from_scratch ();
-       int compute_and_write_peaks (Sample* buf, framecnt_t first_frame, framecnt_t cnt,
+       int compute_and_write_peaks (Sample* buf, samplecnt_t first_sample, samplecnt_t cnt,
        bool force, bool intermediate_peaks_ready_signal);
        void truncate_peakfile();
 
        mutable off_t _peak_byte_max; // modified in compute_and_write_peak()
 
-       virtual framecnt_t read_unlocked (Sample *dst, framepos_t start, framecnt_t cnt) const = 0;
-       virtual framecnt_t write_unlocked (Sample *dst, framecnt_t cnt) = 0;
-       virtual std::string peak_path(std::string audio_path) = 0;
-       virtual std::string find_broken_peakfile (std::string /* missing_peak_path */,
-                                                 std::string audio_path) { return peak_path (audio_path); }
+       virtual samplecnt_t read_unlocked (Sample *dst, samplepos_t start, samplecnt_t cnt) const = 0;
+       virtual samplecnt_t write_unlocked (Sample *dst, samplecnt_t cnt) = 0;
+       virtual std::string construct_peak_filepath (const std::string& audio_path, const bool in_session = false, const bool old_peak_name = false) const = 0;
 
        virtual int read_peaks_with_fpp (PeakData *peaks,
-                                        framecnt_t npeaks, framepos_t start, framecnt_t cnt,
-                                        double samples_per_visual_peak, framecnt_t fpp) const;
+                                        samplecnt_t npeaks, samplepos_t start, samplecnt_t cnt,
+                                        double samples_per_visual_peak, samplecnt_t fpp) const;
 
-       int compute_and_write_peaks (Sample* buf, framecnt_t first_frame, framecnt_t cnt,
+       int compute_and_write_peaks (Sample* buf, samplecnt_t first_sample, samplecnt_t cnt,
                                     bool force, bool intermediate_peaks_ready_signal,
-                                    framecnt_t frames_per_peak);
+                                    samplecnt_t samples_per_peak);
 
   private:
        bool _peaks_built;
@@ -158,13 +156,19 @@ class AudioSource : virtual public Source,
         *  during the handling of the signal.
         */
         mutable Glib::Threads::Mutex _peaks_ready_lock;
+        Glib::Threads::Mutex _initialize_peaks_lock;
 
-       PBD::FdFileDescriptor* _peakfile_descriptor;
        int        _peakfile_fd;
-       framecnt_t peak_leftover_cnt;
-       framecnt_t peak_leftover_size;
+       samplecnt_t peak_leftover_cnt;
+       samplecnt_t peak_leftover_size;
        Sample*    peak_leftovers;
-       framepos_t peak_leftover_frame;
+       samplepos_t peak_leftover_sample;
+
+       mutable bool _first_run;
+       mutable double _last_scale;
+       mutable off_t _last_map_off;
+       mutable size_t  _last_raw_map_length;
+       mutable boost::scoped_array<PeakData> peak_cache;
 };
 
 }