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Diffstat (limited to 'src/plugins/Ui/skinned/shadedvisual.cpp')
| -rw-r--r-- | src/plugins/Ui/skinned/shadedvisual.cpp | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/src/plugins/Ui/skinned/shadedvisual.cpp b/src/plugins/Ui/skinned/shadedvisual.cpp new file mode 100644 index 000000000..e249752ca --- /dev/null +++ b/src/plugins/Ui/skinned/shadedvisual.cpp @@ -0,0 +1,181 @@ +/*************************************************************************** + * Copyright (C) 2007-2010 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 <math.h> +#include "skin.h" +#include "mainvisual.h" +#include "inlines.h" +#include "shadedvisual.h" + +#define VISUAL_NODE_SIZE 512 //samples +#define VISUAL_BUFFER_SIZE (5*VISUAL_NODE_SIZE) + +ShadedVisual::ShadedVisual(QWidget *parent) : Visual(parent) +{ + m_skin = Skin::instance(); + m_ratio = m_skin->ratio(); + resize(m_ratio*38,m_ratio*5); + m_pixmap = QPixmap (m_ratio*38,m_ratio*5); + m_timer = new QTimer(this); + connect(m_timer, SIGNAL (timeout()), this, SLOT (timeout())); + connect(m_skin, SIGNAL(skinChanged()), this, SLOT(updateSkin())); + m_left_buffer = new short[VISUAL_BUFFER_SIZE]; + m_right_buffer = new short[VISUAL_BUFFER_SIZE]; + m_buffer_at = 0; + m_timer->setInterval(50); + m_timer->start(); + clear(); +} + +ShadedVisual::~ShadedVisual() +{ + delete [] m_left_buffer; + delete [] m_right_buffer; +} + +void ShadedVisual::add(unsigned char *data, qint64 size, int chan) +{ + if (!m_timer->isActive ()) + return; + + if(VISUAL_BUFFER_SIZE == m_buffer_at) + { + m_buffer_at -= VISUAL_NODE_SIZE; + memmove(m_left_buffer, m_left_buffer + VISUAL_NODE_SIZE, m_buffer_at << 1); + memmove(m_right_buffer, m_right_buffer + VISUAL_NODE_SIZE, m_buffer_at << 1); + return; + } + + int frames = qMin((int)size/chan >> 1, VISUAL_BUFFER_SIZE - m_buffer_at); + + if (chan >= 2) + { + stereo16_from_multichannel(m_left_buffer + m_buffer_at, + m_right_buffer + m_buffer_at,(short *) data, frames, chan); + } + else + { + memcpy(m_left_buffer + m_buffer_at, (short *) data, frames << 1); + memcpy(m_right_buffer + m_buffer_at, (short *) data, frames << 1); + } + + m_buffer_at += frames; +} + +void ShadedVisual::clear() +{ + m_buffer_at = 0; + m_l = 0; + m_r = 0; + m_pixmap.fill(m_skin->getVisColor(0)); + update(); +} + +void ShadedVisual::timeout() +{ + m_pixmap.fill(m_skin->getVisColor(0)); + + mutex()->lock (); + if(m_buffer_at < VISUAL_NODE_SIZE) + { + mutex()->unlock (); + return; + } + + process (m_left_buffer, m_right_buffer); + m_buffer_at -= VISUAL_NODE_SIZE; + memmove(m_left_buffer, m_left_buffer + VISUAL_NODE_SIZE, m_buffer_at << 1); + memmove(m_right_buffer, m_right_buffer + VISUAL_NODE_SIZE, m_buffer_at << 1); + QPainter p(&m_pixmap); + draw (&p); + mutex()->unlock (); + update(); +} + +void ShadedVisual::process (short *left, short *right) +{ + int step = (VISUAL_NODE_SIZE << 8)/74; + int pos = 0; + int l = 0; + int r = 0; + int j_l = 0, j_r = 0; + + for (int i = 0; i < 75; ++i) + { + pos += step; + + if (left) + { + j_l = abs((left[pos >> 8] >> 12)); + + if (j_l > 15) + j_l = 15; + l = qMax(l, j_l); + } + if (right) + { + j_r = abs((right[pos >> 8] >> 12)); + if (j_r > 15) + j_r = 15; + r = qMax(r, j_r); + } + } + m_l -= 0.5; + m_l = m_l > l ? m_l : l; + m_r -= 0.5; + m_r = m_r > r ? m_r : r; +} + +void ShadedVisual::draw (QPainter *p) +{ + for (int i = 0; i < m_l; ++i) + { + p->fillRect (i*3*m_ratio, 0, 3*m_ratio, 2*m_ratio, QBrush(m_skin->getVisColor (17-i))); + } + for (int i = 0; i < m_r; ++i) + { + p->fillRect (i*3*m_ratio, 3*m_ratio, 3*m_ratio, 2*m_ratio, QBrush(m_skin->getVisColor (17-i))); + } +} + +void ShadedVisual::paintEvent (QPaintEvent *) +{ + QPainter painter (this); + painter.drawPixmap (0,0,m_pixmap); +} + +void ShadedVisual::hideEvent (QHideEvent *) +{ + m_timer->stop(); +} + +void ShadedVisual::showEvent (QShowEvent *) +{ + m_timer->start(); +} + +void ShadedVisual::updateSkin() +{ + m_ratio = m_skin->ratio(); + resize(m_ratio*38,m_ratio*5); + m_pixmap = QPixmap (m_ratio*38,m_ratio*5); + clear(); +} |