remove empty sigc++2 directory

git-svn-id: svn://localhost/ardour2/branches/3.0@3432 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 0 insertions, 466 deletions

diff --git a/libs/ardour/ardour/midi_ring_buffer.h b/libs/ardour/ardour/midi_ring_buffer.h
deleted file mode 100644
index ff0be5c997..0000000000
--- a/libs/ardour/ardour/midi_ring_buffer.h
+++ /dev/null
@@ -1,466 +0,0 @@
-/*
-    Copyright (C) 2006 Paul Davis 
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
-
-#ifndef __ardour_midi_ring_buffer_h__
-#define __ardour_midi_ring_buffer_h__
-
-#include <iostream>
-#include <algorithm>
-#include <ardour/types.h>
-#include <ardour/buffer.h>
-
-namespace ARDOUR {
-
-
-/* FIXME: this is probably too much inlined code */
-
-
-/** A RingBuffer.
- * Read/Write realtime safe.
- * Single-reader Single-writer thread safe.
- *
- * This is Raul::RingBuffer, lifted for MIDIRingBuffer to inherit from as it works
- * a bit differently than PBD::Ringbuffer.  This could/should be replaced with
- * the PBD ringbuffer to decrease code size, but this code is tested and known to
- * work, so here it sits for now...
- *
- * Ignore this class, use MidiRingBuffer.
- */
-template <typename T>
-class MidiRingBufferBase {
-public:
-
-	/** @param size Size in bytes.
-	 */
-	MidiRingBufferBase(size_t size)
-		: _size(size)
-		, _buf(new T[size])
-	{
-		reset();
-		assert(read_space() == 0);
-		assert(write_space() == size - 1);
-	}
-	
-	virtual ~MidiRingBufferBase() {
-		delete[] _buf;
-	}
-
-	/** Reset(empty) the ringbuffer.
-	 * NOT thread safe.
-	 */
-	void reset() {
-		g_atomic_int_set(&_write_ptr, 0);
-		g_atomic_int_set(&_read_ptr, 0);
-	}
-
-	size_t write_space() const {
-		
-		const size_t w = g_atomic_int_get(&_write_ptr);
-		const size_t r = g_atomic_int_get(&_read_ptr);
-		
-		if (w > r) {
-			return ((r - w + _size) % _size) - 1;
-		} else if (w < r) {
-			return (r - w) - 1;
-		} else {
-			return _size - 1;
-		}
-	}
-	
-	size_t read_space() const {
-		
-		const size_t w = g_atomic_int_get(&_write_ptr);
-		const size_t r = g_atomic_int_get(&_read_ptr);
-		
-		if (w > r) {
-			return w - r;
-		} else {
-			return (w - r + _size) % _size;
-		}
-	}
-
-	size_t capacity() const { return _size; }
-
-	size_t peek(size_t size, T* dst);
-	bool   full_peek(size_t size, T* dst);
-
-	size_t read(size_t size, T* dst);
-	bool   full_read(size_t size, T* dst);
-
-	bool   skip(size_t size);
-	
-	void   write(size_t size, const T* src);
-
-protected:
-	mutable int _write_ptr;
-	mutable int _read_ptr;
-	
-	size_t _size; ///< Size (capacity) in bytes
-	T*     _buf;  ///< size, event, size, event...
-};
-
-
-/** Peek at the ringbuffer (read w/o advancing read pointer).
- *
- * Note that a full read may not be done if the data wraps around.
- * Caller must check return value and call again if necessary, or use the 
- * full_peek method which does this automatically.
- */
-template<typename T>
-size_t
-MidiRingBufferBase<T>::peek(size_t size, T* dst)
-{
-	const size_t priv_read_ptr = g_atomic_int_get(&_read_ptr);
-
-	const size_t read_size = (priv_read_ptr + size < _size)
-			? size
-			: _size - priv_read_ptr;
-	
-	memcpy(dst, &_buf[priv_read_ptr], read_size);
-
-	return read_size;
-}
-
-
-template<typename T>
-bool
-MidiRingBufferBase<T>::full_peek(size_t size, T* dst)
-{
-	if (read_space() < size) {
-		return false;
-	}
-
-	const size_t read_size = peek(size, dst);
-	
-	if (read_size < size) {
-		peek(size - read_size, dst + read_size);
-	}
-
-	return true;
-}
-
-
-/** Read from the ringbuffer.
- *
- * Note that a full read may not be done if the data wraps around.
- * Caller must check return value and call again if necessary, or use the 
- * full_read method which does this automatically.
- */
-template<typename T>
-size_t
-MidiRingBufferBase<T>::read(size_t size, T* dst)
-{
-	const size_t priv_read_ptr = g_atomic_int_get(&_read_ptr);
-
-	const size_t read_size = (priv_read_ptr + size < _size)
-			? size
-			: _size - priv_read_ptr;
-	
-	memcpy(dst, &_buf[priv_read_ptr], read_size);
-        
-	g_atomic_int_set(&_read_ptr, (priv_read_ptr + read_size) % _size);
-
-	return read_size;
-}
-
-
-template<typename T>
-bool
-MidiRingBufferBase<T>::full_read(size_t size, T* dst)
-{
-	if (read_space() < size) {
-		return false;
-	}
-
-	const size_t read_size = read(size, dst);
-	
-	if (read_size < size) {
-		read(size - read_size, dst + read_size);
-	}
-
-	return true;
-}
-
-
-template<typename T>
-bool
-MidiRingBufferBase<T>::skip(size_t size)
-{
-	if (read_space() < size) {
-		std::cerr << "WARNING: Attempt to skip past end of MIDI ring buffer" << std::endl;
-		return false;
-	}
-	
-	const size_t priv_read_ptr = g_atomic_int_get(&_read_ptr);
-	g_atomic_int_set(&_read_ptr, (priv_read_ptr + size) % _size);
-
-	return true;
-}
-
-
-template<typename T>
-inline void
-MidiRingBufferBase<T>::write(size_t size, const T* src)
-{
-	const size_t priv_write_ptr = g_atomic_int_get(&_write_ptr);
-	
-	if (priv_write_ptr + size <= _size) {
-		memcpy(&_buf[priv_write_ptr], src, size);
-		g_atomic_int_set(&_write_ptr, (priv_write_ptr + size) % _size);
-	} else {
-		const size_t this_size = _size - priv_write_ptr;
-		assert(this_size < size);
-		assert(priv_write_ptr + this_size <= _size);
-		memcpy(&_buf[priv_write_ptr], src, this_size);
-		memcpy(&_buf[0], src+this_size, size - this_size);
-		g_atomic_int_set(&_write_ptr, size - this_size);
-	}
-}
-
-
-/* ******************************************************************** */
-	
-
-/** A MIDI RingBuffer.
- *
- * This is timestamps and MIDI packed sequentially into a single buffer, similarly
- * to LV2 MIDI.  The buffer looks like this:
- *
- * [timestamp][size][size bytes of raw MIDI][timestamp][size][etc..]
- */
-class MidiRingBuffer : public MidiRingBufferBase<uint8_t> {
-public:
-	/** @param size Size in bytes.
-	 */
-	MidiRingBuffer(size_t size)
-		: MidiRingBufferBase<uint8_t>(size), _channel_mask(0x0000FFFF)
-	{}
-
-	size_t write(double time, size_t size, const uint8_t* buf);
-	bool   read(double* time, size_t* size, uint8_t* buf);
-
-	bool   read_prefix(double* time, size_t* size);
-	bool   read_contents(size_t size, uint8_t* buf);
-
-	size_t read(MidiBuffer& dst, nframes_t start, nframes_t end, nframes_t offset=0);
-	
-	/** 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, ((uint16_t)mode << 16) | 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 static_cast<ChannelMode>((g_atomic_int_get(&_channel_mask) & 0x0000FFFF));
-	}
-	
-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);
-	}
-	
-private:
-	volatile uint32_t _channel_mask; // 16 bits mode, 16 bits mask
-};
-
-
-inline bool
-MidiRingBuffer::read(double* time, size_t* size, uint8_t* buf)
-{
-	bool success = MidiRingBufferBase<uint8_t>::full_read(sizeof(double), (uint8_t*)time);
-	
-	if (success) {
-		success = MidiRingBufferBase<uint8_t>::full_read(sizeof(size_t), (uint8_t*)size);
-	}
-	if (success) {
-		success = MidiRingBufferBase<uint8_t>::full_read(*size, buf);
-	}
-	
-	return success;
-}
-
-
-/** Read the time and size of an event.  This call MUST be immediately proceeded
- * by a call to read_contents (or the read pointer will be garabage).
- */
-inline bool
-MidiRingBuffer::read_prefix(double* time, size_t* size)
-{
-	bool success = MidiRingBufferBase<uint8_t>::full_read(sizeof(double), (uint8_t*)time);
-	if (success) {
-		success = MidiRingBufferBase<uint8_t>::full_read(sizeof(size_t), (uint8_t*)size);
-	}
-
-	return success;
-}
-
-
-/** Read the contenst of an event.  This call MUST be immediately preceeded
- * by a call to read_prefix (or the returned even will be garabage).
- */
-inline bool
-MidiRingBuffer::read_contents(size_t size, uint8_t* buf)
-{
-	return MidiRingBufferBase<uint8_t>::full_read(size, buf);
-}
-
-
-inline size_t
-MidiRingBuffer::write(double time, size_t size, const uint8_t* buf)
-{
-	/*fprintf(stderr, "MRB %p write (t = %f) ", this, time);
-	for (size_t i = 0; i < size; ++i)
-		fprintf(stderr, "%X", (char)buf[i]);
-	fprintf(stderr, "\n");*/
-	
-	assert(size > 0);
-	
-	// Don't write event if it doesn't match channel filter
-	if (is_channel_event(buf[0]) && get_channel_mode() == FilterChannels) {
-		uint8_t channel = buf[0] & 0x0F;
-		if ( !(get_channel_mask() & (1L << channel)) ) {
-			return 0;
-		}
-	}
-
-	if (write_space() < (sizeof(double) + sizeof(size_t) + size)) {
-		return 0;
-	} else {
-		MidiRingBufferBase<uint8_t>::write(sizeof(double), (uint8_t*)&time);
-		MidiRingBufferBase<uint8_t>::write(sizeof(size_t), (uint8_t*)&size);
-		if (is_channel_event(buf[0]) && get_channel_mode() == ForceChannel) {
-			assert(size == 2 || size == 3);
-			uint8_t tmp_buf[3];
-			// Force event to channel
-			tmp_buf[0] = (buf[0] & 0xF0) | (get_channel_mask() & 0x0F);
-			tmp_buf[1] = buf[1];
-			if (size == 3) {
-				tmp_buf[2] = buf[2];
-			}
-			MidiRingBufferBase<uint8_t>::write(size, tmp_buf);
-		} else {
-			MidiRingBufferBase<uint8_t>::write(size, buf);
-		}
-		return size;
-	}
-
-}
-
-
-/** Read a block of MIDI events from buffer.
- *
- * Timestamps of events returned are relative to start (ie event with stamp 0
- * occurred at start), with offset added.
- */
-inline size_t
-MidiRingBuffer::read(MidiBuffer& dst, nframes_t start, nframes_t end, nframes_t offset)
-{
-	if (read_space() == 0)
-		return 0;
-
-	double   ev_time;
-	uint32_t ev_size;
-
-	size_t count = 0;
-
-	//printf("---- MRB read %u .. %u + %u\n", start, end, offset);
-
-	while (read_space() > sizeof(double) + sizeof(size_t)) {
-	
-		full_peek(sizeof(double), (uint8_t*)&ev_time);
-	
-		if (ev_time > end) {
-			break;
-		}
-		
-		bool success = MidiRingBufferBase<uint8_t>::full_read(sizeof(double), (uint8_t*)&ev_time);
-		if (success) {
-			success = MidiRingBufferBase<uint8_t>::full_read(sizeof(size_t), (uint8_t*)&ev_size);
-		}
-
-		if (!success) {
-			std::cerr << "MRB: READ ERROR (time/size)" << std::endl;
-			continue;
-		}
-		
-		uint8_t status;
-		success = full_peek(sizeof(uint8_t), &status);
-		assert(success); // If this failed, buffer is corrupt, all hope is lost
-		
-		// Ignore event if it doesn't match channel filter
-		if (is_channel_event(status) && get_channel_mode() == FilterChannels) {
-			const uint8_t channel = status & 0x0F;
-			if ( !(get_channel_mask() & (1L << channel)) ) {
-				skip(ev_size); // Advance read pointer to next event
-				continue;
-			}
-		}
-
-		if (ev_time >= start) {
-
-			/*std::cerr << "MRB " << this << " - Reading event, time = "
-			 	<< ev_time << " - " << start << " => " << ev_time - start
-				<< ", size = " << ev_size << std::endl;*/
-			
-			ev_time -= start;
-			
-			uint8_t* write_loc = dst.reserve(ev_time, ev_size);
-			if (write_loc == NULL) {
-				std::cerr << "MRB: Unable to reserve space in buffer, event skipped";
-				continue;
-			}
-			
-			success = MidiRingBufferBase<uint8_t>::full_read(ev_size, write_loc);
-		
-			if (success) {
-				if (is_channel_event(status) && get_channel_mode() == ForceChannel) {
-					write_loc[0] = (write_loc[0] & 0xF0) | (get_channel_mask() & 0x0F);
-				}
-				++count;
-				//printf("MRB - read event at time %lf\n", ev_time);
-			} else {
-				std::cerr << "MRB: READ ERROR (data)" << std::endl;
-			}
-			
-		} else {
-			printf("MRB (start %u) - Skipping event at (too early) time %f\n", start, ev_time);
-		}
-	}
-	
-	//printf("(R) read space: %zu\n", read_space());
-
-	return count;
-}
-
-
-} // namespace ARDOUR
-
-#endif // __ardour_midi_ring_buffer_h__
-