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Merge pull request #4924 from TheUbuntuGuy/analyzerlove 

Update Boom and Turbine analyzers
This commit is contained in:
John Maguire 2015-07-01 10:55:32 -04:00
parent 42fd4d7875 8c1af2dc0d
commit 7bac8cb451
3 changed files with 113 additions and 96 deletions
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117
src/analyzers/boomanalyzer.cpp
View File

@ -2,7 +2,7 @@
Copyright 2004, Max Howell <max.howell@methylblue.com>
Copyright 2009-2010, David Sansome <davidsansome@gmail.com>
Copyright 2010, 2014, John Maguire <john.maguire@gmail.com>
Copyright 2014, Mark Furneaux <mark@romaco.ca>
Copyright 2014-2015, Mark Furneaux <mark@furneaux.ca>
Copyright 2014, Krzysztof Sobiecki <sobkas@gmail.com>
Clementine is free software: you can redistribute it and/or modify
@ -28,49 +28,65 @@
using Analyzer::Scope;
const uint BoomAnalyzer::kColumnWidth = 4;
const uint BoomAnalyzer::kMaxBandCount = 256;
const uint BoomAnalyzer::kMinBandCount = 32;
const char* BoomAnalyzer::kName =
QT_TRANSLATE_NOOP("AnalyzerContainer", "Boom analyzer");
BoomAnalyzer::BoomAnalyzer(QWidget* parent)
: Analyzer::Base(parent, 9),
K_barHeight(1.271) // 1.471
bands_(0),
scope_(kMinBandCount),
fg_(palette().color(QPalette::Highlight)),
K_barHeight_(1.271) // 1.471
,
F_peakSpeed(1.103) // 1.122
F_peakSpeed_(1.103) // 1.122
,
F(1.0),
bar_height(BAND_COUNT, 0),
peak_height(BAND_COUNT, 0),
peak_speed(BAND_COUNT, 0.01),
barPixmap(COLUMN_WIDTH, 50) {}
F_(1.0),
bar_height_(kMaxBandCount, 0),
peak_height_(kMaxBandCount, 0),
peak_speed_(kMaxBandCount, 0.01),
barPixmap_(kColumnWidth, 50) {
setMinimumWidth(kMinBandCount * (kColumnWidth + 1) - 1);
setMaximumWidth(kMaxBandCount * (kColumnWidth + 1) - 1);
}
void BoomAnalyzer::changeK_barHeight(int newValue) {
K_barHeight = static_cast<double>(newValue) / 1000;
K_barHeight_ = static_cast<double>(newValue) / 1000;
}
void BoomAnalyzer::changeF_peakSpeed(int newValue) {
F_peakSpeed = static_cast<double>(newValue) / 1000;
F_peakSpeed_ = static_cast<double>(newValue) / 1000;
}
void BoomAnalyzer::resizeEvent(QResizeEvent*) { init(); }
void BoomAnalyzer::resizeEvent(QResizeEvent* e) {
QWidget::resizeEvent(e);
void BoomAnalyzer::init() {
const uint HEIGHT = height() - 2;
const double h = 1.2 / HEIGHT;
F = static_cast<double>(HEIGHT) / (log10(256) * 1.1 /*<- max. amplitude*/);
bands_ = qMin(
static_cast<uint>(static_cast<double>(width() + 1) / (kColumnWidth + 1)) +
1,
kMaxBandCount);
scope_.resize(bands_);
barPixmap = QPixmap(COLUMN_WIDTH - 2, HEIGHT);
F_ = static_cast<double>(HEIGHT) / (log10(256) * 1.1 /*<- max. amplitude*/);
barPixmap_ = QPixmap(kColumnWidth - 2, HEIGHT);
canvas_ = QPixmap(size());
canvas_.fill(palette().color(QPalette::Background));
QPainter p(&barPixmap);
QPainter p(&barPixmap_);
for (uint y = 0; y < HEIGHT; ++y) {
const double F = static_cast<double>(y) * h;
p.setPen(QColor(qMax(0, 255 - static_cast<int>(229.0 * F)),
qMax(0, 255 - static_cast<int>(229.0 * F)),
qMax(0, 255 - static_cast<int>(191.0 * F))));
p.drawLine(0, y, COLUMN_WIDTH - 2, y);
p.drawLine(0, y, kColumnWidth - 2, y);
}
}
@ -78,19 +94,10 @@ void BoomAnalyzer::transform(Scope& s) {
float* front = static_cast<float*>(&s.front());
m_fht->spectrum(front);
m_fht->scale(front, 1.0 / 60);
m_fht->scale(front, 1.0 / 50);
Scope scope(32, 0);
const uint xscale[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
11, 12, 13, 14, 15, 16, 17, 19, 24, 29, 36,
43, 52, 63, 76, 91, 108, 129, 153, 182, 216, 255};
for (uint j, i = 0; i < 32; i++)
for (j = xscale[i]; j < xscale[i + 1]; j++)
if (s[j] > scope[i]) scope[i] = s[j];
s = scope;
s.resize(scope_.size() <= kMaxBandCount / 2 ? kMaxBandCount / 2
: scope_.size());
}
void BoomAnalyzer::analyze(QPainter& p, const Scope& scope, bool new_frame) {
@ -104,47 +111,55 @@ void BoomAnalyzer::analyze(QPainter& p, const Scope& scope, bool new_frame) {
QPainter canvas_painter(&canvas_);
canvas_.fill(palette().color(QPalette::Background));
for (uint i = 0, x = 0, y; i < BAND_COUNT; ++i, x += COLUMN_WIDTH + 1) {
h = log10(scope[i] * 256.0) * F;
Analyzer::interpolate(scope, scope_);
for (uint i = 0, x = 0, y; i < bands_; ++i, x += kColumnWidth + 1) {
h = log10(scope_[i] * 256.0) * F_;
if (h > MAX_HEIGHT) h = MAX_HEIGHT;
if (h > bar_height[i]) {
bar_height[i] = h;
if (h > bar_height_[i]) {
bar_height_[i] = h;
if (h > peak_height[i]) {
peak_height[i] = h;
peak_speed[i] = 0.01;
if (h > peak_height_[i]) {
peak_height_[i] = h;
peak_speed_[i] = 0.01;
} else {
goto peak_handling;
}
} else {
if (bar_height[i] > 0.0) {
bar_height[i] -= K_barHeight; // 1.4
if (bar_height[i] < 0.0) bar_height[i] = 0.0;
if (bar_height_[i] > 0.0) {
bar_height_[i] -= K_barHeight_; // 1.4
if (bar_height_[i] < 0.0) bar_height_[i] = 0.0;
}
peak_handling:
if (peak_height[i] > 0.0) {
peak_height[i] -= peak_speed[i];
peak_speed[i] *= F_peakSpeed; // 1.12
if (peak_height_[i] > 0.0) {
peak_height_[i] -= peak_speed_[i];
peak_speed_[i] *= F_peakSpeed_; // 1.12
if (peak_height[i] < bar_height[i]) peak_height[i] = bar_height[i];
if (peak_height[i] < 0.0) peak_height[i] = 0.0;
if (peak_height_[i] < bar_height_[i]) peak_height_[i] = bar_height_[i];
if (peak_height_[i] < 0.0) peak_height_[i] = 0.0;
}
}
y = height() - uint(bar_height[i]);
canvas_painter.drawPixmap(x + 1, y, barPixmap, 0, y, -1, -1);
canvas_painter.setPen(palette().color(QPalette::Highlight));
if (bar_height[i] > 0)
canvas_painter.drawRect(x, y, COLUMN_WIDTH - 1, height() - y - 1);
y = height() - uint(bar_height_[i]);
canvas_painter.drawPixmap(x + 1, y, barPixmap_, 0, y, -1, -1);
canvas_painter.setPen(fg_);
if (bar_height_[i] > 0)
canvas_painter.drawRect(x, y, kColumnWidth - 1, height() - y - 1);
y = height() - uint(peak_height[i]);
canvas_painter.setPen(palette().color(QPalette::Base));
canvas_painter.drawLine(x, y, x + COLUMN_WIDTH - 1, y);
y = height() - uint(peak_height_[i]);
canvas_painter.setPen(palette().color(QPalette::Midlight));
canvas_painter.drawLine(x, y, x + kColumnWidth - 1, y);
}
p.drawPixmap(0, 0, canvas_);
}
void BoomAnalyzer::paletteChange(const QPalette&) {
// the highlight colour changes when the main window loses focus,
// so we use save and use the focused colour
fg_ = palette().color(QPalette::Highlight);
}

27
src/analyzers/boomanalyzer.h
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@ -1,7 +1,7 @@
/* This file is part of Clementine.
Copyright 2004, Max Howell <max.howell@methylblue.com>
Copyright 2009-2010, David Sansome <davidsansome@gmail.com>
Copyright 2014, Mark Furneaux <mark@romaco.ca>
Copyright 2014-2015, Mark Furneaux <mark@furneaux.ca>
Copyright 2014, Krzysztof Sobiecki <sobkas@gmail.com>
Copyright 2014, John Maguire <john.maguire@gmail.com>
@ -27,10 +27,6 @@
#include "analyzerbase.h"
/**
@author Max Howell
*/
class BoomAnalyzer : public Analyzer::Base {
Q_OBJECT
@ -39,7 +35,6 @@ class BoomAnalyzer : public Analyzer::Base {
static const char* kName;
virtual void init();
virtual void transform(Analyzer::Scope& s);
virtual void analyze(QPainter& p, const Analyzer::Scope&, bool new_frame);
@ -49,17 +44,23 @@ class BoomAnalyzer : public Analyzer::Base {
protected:
void resizeEvent(QResizeEvent* e);
void paletteChange(const QPalette&);
static const uint COLUMN_WIDTH = 4;
static const uint BAND_COUNT = 32;
static const uint kColumnWidth;
static const uint kMaxBandCount;
static const uint kMinBandCount;
double K_barHeight, F_peakSpeed, F;
uint bands_;
Analyzer::Scope scope_;
QColor fg_;
std::vector<float> bar_height;
std::vector<float> peak_height;
std::vector<float> peak_speed;
double K_barHeight_, F_peakSpeed_, F_;
QPixmap barPixmap;
std::vector<float> bar_height_;
std::vector<float> peak_height_;
std::vector<float> peak_speed_;
QPixmap barPixmap_;
QPixmap canvas_;
};

65
src/analyzers/turbine.cpp
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@ -2,7 +2,7 @@
Copyright 2003, Stanislav Karchebny <berkus@users.sf.net>
Copyright 2003, Max Howell <max.howell@methylblue.com>
Copyright 2009-2010, David Sansome <davidsansome@gmail.com>
Copyright 2014, Mark Furneaux <mark@romaco.ca>
Copyright 2014-2015, Mark Furneaux <mark@furneaux.ca>
Copyright 2014, Krzysztof Sobiecki <sobkas@gmail.com>
Copyright 2014, John Maguire <john.maguire@gmail.com>
@ -21,7 +21,7 @@
*/
/* Original Author: Stanislav Karchebny <berkus@users.sf.net> 2003
* Original Author: Max Howell <max.howell@methylblue.com> 2003
* Original Author: Max Howell <max.howell@methylblue.com> 2003
*/
#include <cmath>
@ -42,58 +42,59 @@ void TurbineAnalyzer::analyze(QPainter& p, const Scope& scope, bool new_frame) {
float h;
const uint hd2 = height() / 2;
const uint MAX_HEIGHT = hd2 - 1;
const uint kMaxHeight = hd2 - 1;
QPainter canvas_painter(&canvas_);
canvas_.fill(palette().color(QPalette::Background));
for (uint i = 0, x = 0, y; i < BAND_COUNT; ++i, x += COLUMN_WIDTH + 1) {
h = log10(scope[i] * 256.0) * F * 0.5;
Analyzer::interpolate(scope, scope_);
if (h > MAX_HEIGHT) h = MAX_HEIGHT;
for (uint i = 0, x = 0, y; i < bands_; ++i, x += kColumnWidth + 1) {
h = log10(scope_[i] * 256.0) * F_ * 0.5;
if (h > bar_height[i]) {
bar_height[i] = h;
if (h > kMaxHeight) h = kMaxHeight;
if (h > peak_height[i]) {
peak_height[i] = h;
peak_speed[i] = 0.01;
if (h > bar_height_[i]) {
bar_height_[i] = h;
if (h > peak_height_[i]) {
peak_height_[i] = h;
peak_speed_[i] = 0.01;
} else {
goto peak_handling;
}
} else {
if (bar_height[i] > 0.0) {
bar_height[i] -= K_barHeight; // 1.4
if (bar_height[i] < 0.0) bar_height[i] = 0.0;
if (bar_height_[i] > 0.0) {
bar_height_[i] -= K_barHeight_; // 1.4
if (bar_height_[i] < 0.0) bar_height_[i] = 0.0;
}
peak_handling:
if (peak_height[i] > 0.0) {
peak_height[i] -= peak_speed[i];
peak_speed[i] *= F_peakSpeed; // 1.12
if (peak_height_[i] > 0.0) {
peak_height_[i] -= peak_speed_[i];
peak_speed_[i] *= F_peakSpeed_; // 1.12
if (peak_height[i] < bar_height[i]) peak_height[i] = bar_height[i];
if (peak_height[i] < 0.0) peak_height[i] = 0.0;
if (peak_height_[i] < bar_height_[i]) peak_height_[i] = bar_height_[i];
if (peak_height_[i] < 0.0) peak_height_[i] = 0.0;
}
}
y = hd2 - static_cast<uint>(bar_height[i]);
canvas_painter.drawPixmap(x + 1, y, barPixmap, 0, y, -1, -1);
canvas_painter.drawPixmap(x + 1, hd2, barPixmap, 0,
static_cast<int>(bar_height[i]),
-1, -1);
y = hd2 - static_cast<uint>(bar_height_[i]);
canvas_painter.drawPixmap(x + 1, y, barPixmap_, 0, y, -1, -1);
canvas_painter.drawPixmap(x + 1, hd2, barPixmap_, 0,
static_cast<int>(bar_height_[i]), -1, -1);
canvas_painter.setPen(palette().color(QPalette::Highlight));
if (bar_height[i] > 0)
canvas_painter.drawRect(x, y, COLUMN_WIDTH - 1,
static_cast<int>(bar_height[i]) * 2 - 1);
canvas_painter.setPen(fg_);
if (bar_height_[i] > 0)
canvas_painter.drawRect(x, y, kColumnWidth - 1,
static_cast<int>(bar_height_[i]) * 2 - 1);
const uint x2 = x + COLUMN_WIDTH - 1;
canvas_painter.setPen(palette().color(QPalette::Base));
y = hd2 - uint(peak_height[i]);
const uint x2 = x + kColumnWidth - 1;
canvas_painter.setPen(palette().color(QPalette::Midlight));
y = hd2 - uint(peak_height_[i]);
canvas_painter.drawLine(x, y, x2, y);
y = hd2 + uint(peak_height[i]);
y = hd2 + uint(peak_height_[i]);
canvas_painter.drawLine(x, y, x2, y);
}