new directory structure

git-svn-id: http://svn.code.sf.net/p/qmmp-dev/code/trunk/qmmp@232 90c681e8-e032-0410-971d-27865f9a5e38

1 files changed, 308 insertions, 0 deletions

diff --git a/src/plugins/Visual/analyzer/analyzer.cpp b/src/plugins/Visual/analyzer/analyzer.cpp
new file mode 100644
index 000000000..efcb8b7d7
--- /dev/null
+++ b/src/plugins/Visual/analyzer/analyzer.cpp
@@ -0,0 +1,308 @@
+/***************************************************************************
+ *   Copyright (C) 2007 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 <QTimer>
+#include <QSettings>
+#include <QPainter>
+#include <QMenu>
+#include <QActionGroup>
+
+#include <buffer.h>
+#include <constants.h>
+#include <output.h>
+#include <math.h>
+#include <stdlib.h>
+
+//#include "skin.h"
+#include "fft.h"
+#include "inlines.h"
+#include "analyzer.h"
+
+
+Analyzer::Analyzer (QWidget *parent)
+        : Visual (parent), m_fps ( 20 )
+{
+    QSettings settings(QDir::homePath()+"/.qmmp/qmmprc", QSettings::IniFormat);
+    restoreGeometry(settings.value("Analyzer/geometry").toByteArray());
+    setFixedSize(2*300-30,105);
+    m_pixmap = QPixmap (75,20);
+    m_timer = new QTimer (this);
+    connect(m_timer, SIGNAL (timeout()), this, SLOT (timeout()));
+    m_nodes.clear();
+
+    clear();
+    setWindowTitle (tr("Qmmp Analyzer"));
+
+    double peaks_speed[] = { 0.05, 0.1, 0.2, 0.4, 0.8 };
+    double analyzer_speed[] = { 1.2, 1.8, 2.2, 2.8, 2.4 };
+    int intervals[] = { 20 , 40 , 100 , 200 };
+
+    m_peaks_falloff =
+        peaks_speed[settings.value("Analyzer/peaks_falloff", 3).toInt()-1];
+    m_analyzer_falloff =
+        analyzer_speed[settings.value("Analyzer/analyzer_falloff", 3).toInt()-1];
+    m_show_peaks = settings.value("Analyzer/show_peaks", TRUE).toBool();
+    m_timer->setInterval(intervals[settings.value("Analyzer/refresh_rate", 2).toInt() - 1]);
+    m_color1.setNamedColor(settings.value("Analyzer/color1", "Green").toString());
+    m_color2.setNamedColor(settings.value("Analyzer/color2", "Yellow").toString());
+    m_color3.setNamedColor(settings.value("Analyzer/color3", "Red").toString());
+    m_bgColor.setNamedColor(settings.value("Analyzer/bg_color", "Black").toString());
+    m_peakColor.setNamedColor(settings.value("Analyzer/peak_color", "Cyan").toString());
+}
+
+Analyzer::~Analyzer()
+{
+    while (!m_nodes.isEmpty())
+        m_nodes.removeFirst();
+}
+
+void Analyzer::clear()
+{
+    while (!m_nodes.isEmpty())
+        m_nodes.removeFirst();
+    for ( int i = 0; i< 75; ++i )
+    {
+        m_intern_vis_data[i] = 0;
+        m_peaks[i] = 0;
+    }
+    update();
+}
+
+void Analyzer::add ( Buffer *b, unsigned long w, int c, int p )
+{
+    if (!m_timer->isActive ())
+        return;
+    long len = b->nbytes, cnt;
+    short *l = 0, *r = 0;
+
+    len /= c;
+    len /= ( p / 8 );
+    if ( len > 512 )
+        len = 512;
+    cnt = len;
+
+    if ( c == 2 )
+    {
+        l = new short[len];
+        r = new short[len];
+
+        if ( p == 8 )
+            stereo16_from_stereopcm8 ( l, r, b->data, cnt );
+        else if ( p == 16 )
+            stereo16_from_stereopcm16 ( l, r, ( short * ) b->data, cnt );
+    }
+    else if ( c == 1 )
+    {
+        l = new short[len];
+
+        if ( p == 8 )
+            mono16_from_monopcm8 ( l, b->data, cnt );
+        else if ( p == 16 )
+            mono16_from_monopcm16 ( l, ( short * ) b->data, cnt );
+    }
+    else
+        len = 0;
+
+    if (len)
+        m_nodes.append (new VisualNode (l, r, len, w));
+}
+
+void Analyzer::timeout()
+{
+    VisualNode *node = 0;
+
+    if ( /*playing &&*/ output())
+    {
+        //output()->mutex()->lock ();
+        //long olat = output()->latency();
+        //long owrt = output()->written();
+        //output()->mutex()->unlock();
+
+        //long synctime = owrt < olat ? 0 : owrt - olat;
+
+        mutex()->lock ();
+        VisualNode *prev = 0;
+        while ((!m_nodes.isEmpty()))
+        {
+            node = m_nodes.takeFirst();
+            /*if ( node->offset > synctime )
+               break;*/
+
+            if (prev)
+                delete prev;
+            prev = node;
+        }
+        mutex()->unlock();
+        node = prev;
+    }
+
+    if (!node)
+        return;
+    process (node);
+    delete node;
+    update();
+}
+
+void Analyzer::paintEvent (QPaintEvent * e)
+{
+    QPainter painter (this);
+    painter.fillRect(e->rect(),m_bgColor);
+    draw(&painter);
+}
+
+void Analyzer::hideEvent (QHideEvent *)
+{
+    m_timer->stop();
+}
+
+void Analyzer::showEvent (QShowEvent *)
+{
+    m_timer->start();
+}
+
+void Analyzer::closeEvent (QCloseEvent *event)
+{
+    //save geometry
+    QSettings settings(QDir::homePath()+"/.qmmp/qmmprc", QSettings::IniFormat);
+    settings.setValue("Analyzer/geometry", saveGeometry());
+    Visual::closeEvent(event); //removes visualization before class deleting
+}
+
+bool Analyzer::process (VisualNode *node)
+{
+    static fft_state *state = 0;
+    if ( !state )
+        state = fft_init();
+
+    short dest_l[256];
+    short dest_r[256];
+
+    const int xscale_short[] =
+        {
+            0, 1, 2, 3, 4, 5, 6, 7, 8, 11, 15, 20, 27,
+            36, 47, 62, 82, 107, 141, 184, 255
+        };
+
+    if ( node )
+    {
+        //i = node->length;
+        calc_freq ( dest_l, node->left );
+        if (node->right)
+            calc_freq ( dest_r, node->right );
+    }
+    else
+        return FALSE;
+    const double y_scale = 3.60673760222;   /* 20.0 / log(256) */
+    int yl,yr, j;
+
+    for (int i = 0; i < 19; i++)
+    {
+        yl = yr = 0;
+
+        for ( j = xscale_short[i];  j < xscale_short[i + 1]; j++ )
+        {
+            if ( dest_l[j] > yl )
+                yl = dest_l[j];
+            if ( dest_r[j] > yr && node->right)
+                yr = dest_r[j];
+        }
+        yl >>= 7;
+        int magnitude_l = 0;
+        int magnitude_r = 0;
+        if (node->right)
+        {
+            yr >>= 7;
+        }
+        if (yl)
+        {
+            magnitude_l = int(log (yl) * y_scale);
+            if ( magnitude_l > 15 )
+                magnitude_l = 15;
+            if ( magnitude_l < 0 )
+                magnitude_l = 0;
+        }
+        if (yr && node->right)
+        {
+            magnitude_r = int(log (yr) * y_scale);
+            if ( magnitude_r > 15 )
+                magnitude_r = 15;
+            if ( magnitude_r < 0 )
+                magnitude_r = 0;
+        }
+
+        m_intern_vis_data[i] -= m_analyzer_falloff;
+        m_intern_vis_data[i] = magnitude_l > m_intern_vis_data[i]
+                               ? magnitude_l : m_intern_vis_data[i];
+        if (node->right)
+        {
+            m_intern_vis_data[37-i] -= m_analyzer_falloff;
+            m_intern_vis_data[37-i] = magnitude_r > m_intern_vis_data[37-i]
+                                      ? magnitude_r : m_intern_vis_data[37-i];
+        }
+
+        if (m_show_peaks)
+        {
+            m_peaks[i] -= m_peaks_falloff;
+            m_peaks[i] = magnitude_l > m_peaks[i]
+                         ? magnitude_l : m_peaks[i];
+            if (node->right)
+            {
+                m_peaks[37-i] -= m_peaks_falloff;
+                m_peaks[37-i] = magnitude_r > m_peaks[37-i]
+                                ? magnitude_r : m_peaks[37-i];
+            }
+        }
+    }
+    return TRUE;
+}
+
+void Analyzer::draw (QPainter *p)
+{
+    QBrush brush(Qt::SolidPattern);
+    for (int j = 0; j < 19; ++j)
+    {
+        for (int i = 0; i <= m_intern_vis_data[j]; ++i)
+        {
+            if (i <= 5)
+                brush.setColor(m_color1);
+            else if (i > 5 && i <= 10)
+                brush.setColor(m_color2);
+            else
+                brush.setColor(m_color3);
+            p->fillRect (j*15+1, height() - i*7, 12, 4, brush);
+        }
+
+        for (int i = 0; i <= m_intern_vis_data[19+j]; ++i)
+        {
+            if (i <= 5)
+                brush.setColor(m_color1);
+            else if (i > 5 && i <= 10)
+                brush.setColor(m_color2);
+            else
+                brush.setColor(m_color3);
+            p->fillRect ((j+19)*15+1, height() - i*7, 12, 4, brush);
+        }
+
+        if (m_show_peaks)
+        {
+            p->fillRect (j*15+1, height() - int(m_peaks[j])*7, 12, 4, m_peakColor);
+            p->fillRect ((j+19)*15+1, height() - int(m_peaks[j+19])*7, 12, 4, m_peakColor);
+        }
+    }
+}