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Diffstat (limited to 'src/plugins/Effect/ladspa/ladspaplugin.cpp')
-rw-r--r--src/plugins/Effect/ladspa/ladspaplugin.cpp487
1 files changed, 0 insertions, 487 deletions
diff --git a/src/plugins/Effect/ladspa/ladspaplugin.cpp b/src/plugins/Effect/ladspa/ladspaplugin.cpp
deleted file mode 100644
index bef363397..000000000
--- a/src/plugins/Effect/ladspa/ladspaplugin.cpp
+++ /dev/null
@@ -1,487 +0,0 @@
-/***************************************************************************
- * Copyright (C) 2009 by Ilya Kotov *
- * <forkotov02@hotmail.ru> *
- * *
- * 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., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
- ***************************************************************************/
-
-#include <QSettings>
-#include <QByteArray>
-#include <QDir>
-#include <QFileInfo>
-#include <math.h>
-#include <stdlib.h>
-#include <dlfcn.h>
-#include <qmmp/qmmp.h>
-#include "ladspaplugin.h"
-
-#ifndef PATH_MAX
-#define PATH_MAX 4096
-#endif
-
-#undef CLAMP
-#define CLAMP(x, low, high) (((x) > (high)) ? (high) : (((x) < (low)) ? (low) : (x)))
-
-LADSPAHost *LADSPAHost::m_instance = 0;
-
-LADSPAHost::LADSPAHost() : Effect()
-{
- m_instance = this;
- findAllPlugins();
-}
-
-LADSPAHost::~LADSPAHost()
-{
- m_instance = 0;
- foreach(LADSPAEffect *instance, m_effects)
- {
- unload(instance);
- }
-}
-
-ulong LADSPAHost::process(char *in_data, const ulong size, char **out_data)
-{
- applyEffect((qint16 *) in_data, size);
- memcpy(*out_data, in_data, size);
- return size;
-}
-
-void LADSPAHost::configure(quint32 freq, int chan, int res)
-{
- Effect::configure(freq, chan, res);
-}
-
-LADSPAHost* LADSPAHost::instance()
-{
- return m_instance;
-}
-
-QList <LADSPAPlugin *> LADSPAHost::plugins()
-{
- return m_plugins;
-}
-
-QList <LADSPAEffect *> LADSPAHost::runningPlugins()
-{
- return m_effects;
-}
-
-/*!!!!*/
-void LADSPAHost::findAllPlugins()
-{
- while(!m_plugins.isEmpty()) /* empty list */
- delete m_plugins.takeFirst();
-
- QString ladspa_path = qgetenv("LADSPA_PATH");
- QStringList directories;
-
- if (ladspa_path.isEmpty())
- {
- /* Fallback, look in obvious places */
- directories << "/usr/lib/ladspa";
- directories << "/usr/local/lib/ladspa";
- }
- else
- directories = ladspa_path.split(':');
- foreach(QString dir, directories)
- findPlugins(dir);
-}
-
-LADSPAEffect *LADSPAHost::load(const QString &filename, long int num)
-{
- LADSPA_Descriptor_Function descriptor_fn;
- LADSPAEffect *instance = new LADSPAEffect;
-
- instance->fileName = filename;
- instance->library = dlopen(qPrintable(filename), RTLD_NOW);
- instance->handle = 0;
- instance->handle2 = 0;
- if (!instance->library)
- {
- delete instance;
- return 0;
- }
- descriptor_fn = (LADSPA_Descriptor_Function) dlsym(instance->library, "ladspa_descriptor");
- if (!descriptor_fn)
- {
- dlclose(instance->library);
- delete instance;
- return 0;
- }
- instance->descriptor = descriptor_fn(num);
-
- return instance;
-}
-
-void LADSPAHost::unload(LADSPAEffect *instance)
-{
- const LADSPA_Descriptor *descriptor = instance->descriptor;
-
- if (instance->handle)
- {
- if (descriptor->deactivate)
- descriptor->deactivate(instance->handle);
- descriptor->cleanup(instance->handle);
- instance->handle = 0;
- }
- if (instance->handle2)
- {
- if (descriptor->deactivate)
- descriptor->deactivate(instance->handle2);
- descriptor->cleanup(instance->handle2);
- instance->handle2 = 0;
- }
-
- if (instance->library)
- {
- dlclose(instance->library);
- instance->library = 0;
- }
- m_effects.removeAll(instance);
- delete instance;
-}
-
-void LADSPAHost::bootPlugin(LADSPAEffect *instance)
-{
- const LADSPA_Descriptor *descriptor = instance->descriptor;
-
- instance->handle = descriptor->instantiate(descriptor, (int)sampleRate());
- if (channels() > 1 && !instance->stereo)
- {
- /* Create an additional instance */
- instance->handle2 = descriptor->instantiate(descriptor, (int)sampleRate());
- }
-
- portAssign(instance);
-
- if (descriptor->activate)
- {
- descriptor->activate(instance->handle);
- if (instance->handle2)
- descriptor->activate(instance->handle2);
- }
-}
-
-int LADSPAHost::applyEffect(qint16 *d, int length)
-{
- qint16 *raw16 = d;
- LADSPAEffect *instance;
- int k;
- int nch = channels();
-
- if (m_effects.isEmpty())
- return length;
-
- if (nch == 1)
- {
- for (k = 0; k < length / 2; ++k)
- m_left[k] = ((LADSPA_Data) raw16[k]) * (1.0f / 32768.0f);
- foreach(instance, m_effects)
- {
- if (instance->handle)
- instance->descriptor->run(instance->handle, length / 2);
- }
- for (k = 0; k < length / 2; ++k)
- raw16[k] = CLAMP((int)(m_left[k] * 32768.0f), -32768, 32767);
- }
- else
- {
- for (k = 0; k < length / 2; k += 2)
- {
- m_left[k/2] = ((LADSPA_Data) raw16[k]) * (1.0f / 32768.0f);
- m_right[(k+1)/2] = ((LADSPA_Data) raw16[k+1]) * (1.0f / 32768.0f);
- }
- foreach(instance, m_effects)
- {
- if (instance->handle)
- instance->descriptor->run(instance->handle, length/4);
- if (instance->handle2)
- instance->descriptor->run(instance->handle2, length/4);
- }
- for (k = 0; k < length / 2; k += 2)
- {
- raw16[k] = CLAMP((int)(m_left[k/2] * 32768.0f), -32768, 32767);
- raw16[k+1] = CLAMP((int)(m_right[(k+1)/2] * 32768.0f), -32768, 32767);
-
- }
- }
- return length;
-}
-
-void LADSPAHost::portAssign(LADSPAEffect *instance)
-{
- unsigned long port;
- unsigned long inputs = 0, outputs = 0;
- const LADSPA_Descriptor *plugin = instance->descriptor;
-
- for (port = 0; port < plugin->PortCount; ++port)
- {
- if (LADSPA_IS_PORT_CONTROL(plugin->PortDescriptors[port]))
- {
- if (port < MAX_KNOBS)
- {
- plugin->connect_port(instance->handle, port, &(instance->knobs[port]));
- if (instance->handle2)
- plugin->connect_port(instance->handle2, port, &(instance->knobs[port]));
- }
- else
- {
- plugin->connect_port(instance->handle, port, m_trash);
- if (instance->handle2)
- plugin->connect_port(instance->handle2, port, m_trash);
- }
-
- }
- else if (LADSPA_IS_PORT_AUDIO(plugin->PortDescriptors[port]))
- {
-
- if (LADSPA_IS_PORT_INPUT(plugin->PortDescriptors[port]))
- {
- if (inputs == 0)
- {
- plugin->connect_port(instance->handle, port, m_left);
- if (instance->handle2)
- plugin->connect_port(instance->handle2, port, m_right);
- }
- else if (inputs == 1 && instance->stereo)
- {
- plugin->connect_port(instance->handle, port, m_right);
- }
- else
- {
- plugin->connect_port(instance->handle, port, m_trash);
- if (instance->handle2)
- plugin->connect_port(instance->handle2, port, m_trash);
- }
- inputs++;
-
- }
- else if (LADSPA_IS_PORT_OUTPUT(plugin->PortDescriptors[port]))
- {
- if (outputs == 0)
- {
- plugin->connect_port(instance->handle, port, m_left);
- if (instance->handle2)
- plugin->connect_port(instance->handle2, port, m_right);
- }
- else if (outputs == 1 && instance->stereo)
- {
- plugin->connect_port(instance->handle, port, m_right);
- }
- else
- {
- plugin->connect_port(instance->handle, port, m_trash);
- if (instance->handle2)
- plugin->connect_port(instance->handle2, port, m_trash);
- }
- outputs++;
- }
- }
- }
-}
-
-void LADSPAHost::findPlugins(const QString &path_entry)
-{
- LADSPAPlugin *plugin;
- void *library = 0;
- LADSPA_Descriptor_Function descriptor_fn;
- const LADSPA_Descriptor *descriptor;
- long int k;
- unsigned long int port, input, output;
-
- QDir dir (path_entry);
- dir.setFilter(QDir::Files | QDir::Hidden);
- dir.setSorting(QDir::Name);
- QFileInfoList files = dir.entryInfoList((QStringList() << "*.so"));
-
- foreach(QFileInfo file, files)
- {
- library = dlopen(qPrintable(file.absoluteFilePath ()), RTLD_LAZY);
- if (library == 0)
- {
- continue;
- }
- descriptor_fn = (LADSPA_Descriptor_Function) dlsym(library, "ladspa_descriptor");
- if (descriptor_fn == 0)
- {
- dlclose(library);
- continue;
- }
-
- for (k = 0;; ++k)
- {
- descriptor = descriptor_fn(k);
- if (descriptor == 0)
- {
- break;
- }
- plugin = new LADSPAPlugin;
- plugin->name = strdup(descriptor->Name);
- plugin->fileName = file.absoluteFilePath ();
- plugin->id = k;
- plugin->unique_id = descriptor->UniqueID;
- for (input = output = port = 0; port < descriptor->PortCount; ++port)
- {
- if (LADSPA_IS_PORT_AUDIO(descriptor->PortDescriptors[port]))
- {
- if (LADSPA_IS_PORT_INPUT(descriptor->PortDescriptors[port]))
- input++;
- if (LADSPA_IS_PORT_OUTPUT(descriptor->PortDescriptors[port]))
- output++;
- }
- else if (LADSPA_IS_PORT_CONTROL(descriptor->PortDescriptors[port]))
- {
- }
- }
- plugin->stereo = (input >= 2 && output >= 2);
- m_plugins.append(plugin);
- }
- dlclose(library);
- }
-}
-
-LADSPAEffect *LADSPAHost::addPlugin(LADSPAPlugin *plugin)
-{
- if (!plugin)
- return 0;
- LADSPAEffect *instance;
- if (!(instance = load(plugin->fileName, plugin->id)))
- return 0;
- instance->stereo = plugin->stereo;
- if (channels() && sampleRate())
- bootPlugin(instance);
- initialize(instance);
- m_effects.append(instance);
- return instance;
-}
-
-void LADSPAHost::initialize(LADSPAEffect *instance)
-{
- const LADSPA_Descriptor *plugin = instance->descriptor;
- const LADSPA_PortRangeHint *hints = plugin->PortRangeHints;
- LADSPA_Data fact, min, max, step, start;
- int dp;
-
- for (unsigned long k = 0; k < MAX_KNOBS && k < plugin->PortCount; ++k)
- {
- if (!LADSPA_IS_PORT_CONTROL(plugin->PortDescriptors[k]))
- continue;
-
- LADSPAControl *c = new LADSPAControl;
- c->name = QString(plugin->PortNames[k]);
-
- if (LADSPA_IS_HINT_TOGGLED(hints[k].HintDescriptor))
- {
- c->type = LADSPAControl::BUTTON;
- c->min = 0;
- c->max = 0;
- c->step = 0;
- c->value = &instance->knobs[k];
- instance->controls << c;
- continue;
- }
-
- if (LADSPA_IS_HINT_SAMPLE_RATE(hints[k].HintDescriptor))
- fact = sampleRate();
- else
- fact = 1.0f;
-
- if (LADSPA_IS_HINT_BOUNDED_BELOW(hints[k].HintDescriptor))
- min = hints[k].LowerBound * fact;
- else
- min = -10000.0f;
-
- if (LADSPA_IS_HINT_BOUNDED_ABOVE(hints[k].HintDescriptor))
- max = hints[k].UpperBound * fact;
- else
- max = 10000.0f;
-
- /* infinity */
- if (10000.0f <= max - min)
- {
- dp = 1;
- step = 5.0f;
-
- /* 100.0 ... lots */
- }
- else if (100.0f < max - min)
- {
- dp = 0;
- step = 5.0f;
-
- /* 10.0 ... 100.0 */
- }
- else if (10.0f < max - min)
- {
- dp = 1;
- step = 0.5f;
-
- /* 1.0 ... 10.0 */
- }
- else if (1.0f < max - min)
- {
- dp = 2;
- step = 0.05f;
-
- /* 0.0 ... 1.0 */
- }
- else
- {
- dp = 3;
- step = 0.005f;
- }
-
- if (LADSPA_IS_HINT_INTEGER(hints[k].HintDescriptor))
- {
- dp = 0;
- if (step < 1.0f)
- step = 1.0f;
- }
-
- if (LADSPA_IS_HINT_DEFAULT_MINIMUM(hints[k].HintDescriptor))
- start = min;
- else if (LADSPA_IS_HINT_DEFAULT_LOW(hints[k].HintDescriptor))
- start = min * 0.75f + max * 0.25f;
- else if (LADSPA_IS_HINT_DEFAULT_MIDDLE(hints[k].HintDescriptor))
- start = min * 0.5f + max * 0.5f;
- else if (LADSPA_IS_HINT_DEFAULT_HIGH(hints[k].HintDescriptor))
- start = min * 0.25f + max * 0.75f;
- else if (LADSPA_IS_HINT_DEFAULT_MAXIMUM(hints[k].HintDescriptor))
- start = max;
- else if (LADSPA_IS_HINT_DEFAULT_0(hints[k].HintDescriptor))
- start = 0.0f;
- else if (LADSPA_IS_HINT_DEFAULT_1(hints[k].HintDescriptor))
- start = 1.0f;
- else if (LADSPA_IS_HINT_DEFAULT_100(hints[k].HintDescriptor))
- start = 100.0f;
- else if (LADSPA_IS_HINT_DEFAULT_440(hints[k].HintDescriptor))
- start = 440.0f;
- else if (LADSPA_IS_HINT_INTEGER(hints[k].HintDescriptor))
- start = min;
- else if (max >= 0.0f && min <= 0.0f)
- start = 0.0f;
- else
- start = min * 0.5f + max * 0.5f;
-
- instance->knobs[k] = start;
- c->type = LADSPAControl::SLIDER;
- c->min = min;
- c->max = max;
- c->step = step;
- c->value = &instance->knobs[k];
- instance->controls << c;
- }
-}
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