Reworked use of Plugin class in engine slightly (more RAII-ey)

git-svn-id: http://svn.drobilla.net/lad/grauph@56 a436a847-0d15-0410-975c-d299462d15a1

1 files changed, 0 insertions, 263 deletions

diff --git a/src/libs/engine/LV2Plugin.cpp b/src/libs/engine/LV2Plugin.cpp
deleted file mode 100644
index 411caa36..00000000
--- a/src/libs/engine/LV2Plugin.cpp
+++ /dev/null
@@ -1,263 +0,0 @@
-/* This file is part of Om.  Copyright (C) 2006 Dave Robillard.
- * 
- * Om 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.
- * 
- * Om 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 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.,
- * 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#include "LV2Plugin.h"
-#include <iostream>
-#include <cassert>
-#include "float.h"
-#include <stdint.h>
-#include <cmath>
-#include "InputPort.h"
-#include "OutputPort.h"
-#include "Plugin.h"
-
-namespace Om {
-
-
-/** Partially construct a LV2Plugin.
- *
- * Object is not usable until instantiate() is called with success.
- * (It _will_ crash!)
- */
-LV2Plugin::LV2Plugin(const string&      name,
-                     size_t             poly,
-                     Patch*             parent,
-                     const SLV2Plugin*  plugin,
-                     samplerate         srate,
-                     size_t             buffer_size)
-: NodeBase(name, poly, parent, srate, buffer_size),
-  _lv2_plugin(plugin),
-  _instances(NULL)
-{
-	assert(_lv2_plugin);
-}
-
-
-/** Instantiate self from LV2 plugin descriptor.
- *
- * Implemented as a seperate function (rather than in the constructor) to
- * allow graceful error-catching of broken plugins.
- * 
- * Returns whether or not plugin was successfully instantiated.  If return
- * value is false, this object may not be used.
- */
-bool
-LV2Plugin::instantiate()
-{
-	size_t num_ports = slv2_plugin_get_num_ports(_lv2_plugin);
-	assert(num_ports > 0);
-	_ports->alloc(num_ports);
-	
-	_instances = new SLV2Instance*[_poly];
-	
-	size_t port_buffer_size = 0;
-	
-	for (size_t i=0; i < _poly; ++i) {
-		_instances[i] = slv2_plugin_instantiate(_lv2_plugin, _srate, NULL);
-		if (_instances[i] == NULL) {
-			cerr << "Failed to instantiate plugin!" << endl;
-			return false;
-		}
-	}
-	
-	string port_name;
-	string port_path;
-	
-	Port* port = NULL;
-	
-	for (size_t j=0; j < num_ports; ++j) {
-		// LV2 shortnames are guaranteed to be unique, valid C identifiers
-		port_name = (char*)slv2_port_get_symbol(_lv2_plugin, j);
-	
-		assert(port_name.find("/") == string::npos);
-
-		port_path = path() + "/" + port_name;
-		
-		// Assumes there is only the 4 classes
-
-		SLV2PortClass port_class = slv2_port_get_class(_lv2_plugin, j);
-		const bool is_control = (port_class == SLV2_CONTROL_RATE_INPUT
-			|| port_class == SLV2_CONTROL_RATE_OUTPUT);
-		const bool is_input = (port_class == SLV2_CONTROL_RATE_INPUT
-			|| port_class == SLV2_AUDIO_RATE_INPUT);
-
-		if (is_control)
-			port_buffer_size = 1;
-		else
-			port_buffer_size = _buffer_size;
-		
-		if (is_input) {
-			port = new InputPort<sample>(this, port_name, j, _poly, DataType::FLOAT, port_buffer_size);
-			_ports->at(j) = port;
-		} else /* output */ {
-			port = new OutputPort<sample>(this, port_name, j, _poly, DataType::FLOAT, port_buffer_size);
-			_ports->at(j) = port;
-		}
-
-		assert(_ports->at(j) != NULL);
-
-		//PortInfo* pi = port->port_info();
-		//get_port_vals(j, pi);
-
-		// Set default control val
-		/*if (pi->is_control())
-			((PortBase<sample>*)port)->set_value(pi->default_val(), 0);
-		else
-			((PortBase<sample>*)port)->set_value(0.0f, 0);*/
-	}
-	return true;
-}
-
-
-LV2Plugin::~LV2Plugin()
-{
-	for (size_t i=0; i < _poly; ++i)
-		slv2_instance_free(_instances[i]);
-
-	delete[] _instances;
-}
-
-
-void
-LV2Plugin::activate()
-{
-	NodeBase::activate();
-
-	PortBase<sample>* port = NULL;
-	
-	for (size_t i=0; i < _poly; ++i) {
-		for (unsigned long j=0; j < num_ports(); ++j) {
-			port = static_cast<PortBase<sample>*>(_ports->at(j));
-			set_port_buffer(i, j, ((PortBase<sample>*)_ports->at(j))->buffer(i)->data());
-			if (port->type() == DataType::FLOAT && port->buffer_size() == 1)
-				port->set_value(0.0f, 0); // FIXME
-			else if (port->type() == DataType::FLOAT && port->buffer_size() > 1)
-				port->set_value(0.0f, 0);
-		}
-		slv2_instance_activate(_instances[i]);
-	}
-}
-
-
-void
-LV2Plugin::deactivate()
-{
-	NodeBase::deactivate();
-	
-	for (size_t i=0; i < _poly; ++i)
-		slv2_instance_deactivate(_instances[i]);
-}
-
-
-void
-LV2Plugin::run(size_t nframes)
-{
-	NodeBase::run(nframes); // mixes down input ports
-	for (size_t i=0; i < _poly; ++i) 
-		slv2_instance_run(_instances[i], nframes);
-}
-
-
-void
-LV2Plugin::set_port_buffer(size_t voice, size_t port_num, void* buf)
-{
-	assert(voice < _poly);
-	
-	// Could be a MIDI port after this
-	if (port_num < num_ports()) {
-		slv2_instance_connect_port(_instances[voice], port_num, buf);
-	}
-}
-
-
-#if 0
-// Based on code stolen from jack-rack
-void
-LV2Plugin::get_port_vals(ulong port_index, PortInfo* info)
-{
-	LV2_Data upper = 0.0f;
-	LV2_Data lower = 0.0f;
-	LV2_Data normal = 0.0f;
-	LV2_PortRangeHintDescriptor hint_descriptor = _descriptor->PortRangeHints[port_index].HintDescriptor;
-
-	/* set upper and lower, possibly adjusted to the sample rate */
-	if (LV2_IS_HINT_SAMPLE_RATE(hint_descriptor)) {
-		upper = _descriptor->PortRangeHints[port_index].UpperBound * _srate;
-		lower = _descriptor->PortRangeHints[port_index].LowerBound * _srate;
-	} else {
-		upper = _descriptor->PortRangeHints[port_index].UpperBound;
-		lower = _descriptor->PortRangeHints[port_index].LowerBound;
-	}
-
-	if (LV2_IS_HINT_LOGARITHMIC(hint_descriptor)) {
-		/* FLT_EPSILON is defined as the different between 1.0 and the minimum
-		 * float greater than 1.0.  So, if lower is < FLT_EPSILON, it will be 1.0
-		 * and the logarithmic control will have a base of 1 and thus not change
-		 */
-		if (lower < FLT_EPSILON) lower = FLT_EPSILON;
-	}
-
-
-	if (LV2_IS_HINT_HAS_DEFAULT(hint_descriptor)) {
-
-		if (LV2_IS_HINT_DEFAULT_MINIMUM(hint_descriptor)) {
-			normal = lower;
-		} else if (LV2_IS_HINT_DEFAULT_LOW(hint_descriptor)) {
-			if (LV2_IS_HINT_LOGARITHMIC(hint_descriptor)) {
-				normal = exp(log(lower) * 0.75 + log(upper) * 0.25);
-			} else {
-				normal = lower * 0.75 + upper * 0.25;
-			}
-		} else if (LV2_IS_HINT_DEFAULT_MIDDLE(hint_descriptor)) {
-			if (LV2_IS_HINT_LOGARITHMIC(hint_descriptor)) {
-				normal = exp(log(lower) * 0.5 + log(upper) * 0.5);
-			} else {
-				normal = lower * 0.5 + upper * 0.5;
-			}
-		} else if (LV2_IS_HINT_DEFAULT_HIGH(hint_descriptor)) {
-			if (LV2_IS_HINT_LOGARITHMIC(hint_descriptor)) {
-				normal = exp(log(lower) * 0.25 + log(upper) * 0.75);
-			} else {
-				normal = lower * 0.25 + upper * 0.75;
-			}
-		} else if (LV2_IS_HINT_DEFAULT_MAXIMUM(hint_descriptor)) {
-			normal = upper;
-		} else if (LV2_IS_HINT_DEFAULT_0(hint_descriptor)) {
-			normal = 0.0;
-		} else if (LV2_IS_HINT_DEFAULT_1(hint_descriptor)) {
-			normal = 1.0;
-		} else if (LV2_IS_HINT_DEFAULT_100(hint_descriptor)) {
-			normal = 100.0;
-		} else if (LV2_IS_HINT_DEFAULT_440(hint_descriptor)) {
-			normal = 440.0;
-		}
-	} else {  // No default hint
-		if (LV2_IS_HINT_BOUNDED_BELOW(hint_descriptor)) {
-			normal = lower;
-		} else if (LV2_IS_HINT_BOUNDED_ABOVE(hint_descriptor)) {
-			normal = upper;
-		}
-	}
-
-	info->min_val(lower);
-	info->default_val(normal);
-	info->max_val(upper);
-}
-#endif
-
-
-} // namespace Om
-