mirror of
https://github.com/clementine-player/Clementine
synced 2024-12-25 01:02:37 +01:00
373 lines
8.5 KiB
C++
373 lines
8.5 KiB
C++
/*
|
|
* MilkdropWaveform.cpp
|
|
*
|
|
* Created on: Jun 25, 2008
|
|
* Author: pete
|
|
*/
|
|
#include <iostream>
|
|
|
|
#ifdef LINUX
|
|
#include <GL/gl.h>
|
|
#endif
|
|
#ifdef WIN32
|
|
#include "glew.h"
|
|
#endif
|
|
#ifdef __APPLE__
|
|
#include <OpenGL/gl.h>
|
|
#endif
|
|
|
|
#include <cmath>
|
|
|
|
#include "MilkdropWaveform.hpp"
|
|
#include "math.h"
|
|
#include "BeatDetect.hpp"
|
|
|
|
MilkdropWaveform::MilkdropWaveform(): RenderItem(),
|
|
x(0.5), y(0.5), r(1), g(0), b(0), a(1), mystery(0), mode(Line), scale(10), smoothing(0), rot(0), samples(0),modOpacityStart(0),modOpacityEnd(1),
|
|
modulateAlphaByVolume(false), maximizeColors(false), additive(false), dots(false), thick(false), loop(false) {}
|
|
|
|
void MilkdropWaveform::Draw(RenderContext &context)
|
|
{
|
|
WaveformMath(context);
|
|
|
|
glMatrixMode( GL_MODELVIEW );
|
|
glPushMatrix();
|
|
glLoadIdentity();
|
|
|
|
if(modulateAlphaByVolume) ModulateOpacityByVolume(context);
|
|
else temp_a = a;
|
|
MaximizeColors(context);
|
|
|
|
#ifndef USE_GLES1
|
|
if(dots==1) glEnable(GL_LINE_STIPPLE);
|
|
#endif
|
|
|
|
//Thick wave drawing
|
|
if (thick==1) glLineWidth( (context.texsize < 512 ) ? 2 : 2*context.texsize/512);
|
|
else glLineWidth( (context.texsize < 512 ) ? 1 : context.texsize/512);
|
|
|
|
//Additive wave drawing (vice overwrite)
|
|
if (additive==1)glBlendFunc(GL_SRC_ALPHA, GL_ONE);
|
|
else glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
|
|
|
|
glTranslatef(.5, .5, 0);
|
|
glRotatef(rot, 0, 0, 1);
|
|
glScalef(aspectScale, 1.0, 1.0);
|
|
glTranslatef(-.5, -.5, 0);
|
|
|
|
|
|
glEnableClientState(GL_VERTEX_ARRAY);
|
|
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
|
|
glDisableClientState(GL_COLOR_ARRAY);
|
|
glVertexPointer(2,GL_FLOAT,0,wavearray);
|
|
|
|
if (loop)
|
|
glDrawArrays(GL_LINE_LOOP,0,samples);
|
|
else
|
|
glDrawArrays(GL_LINE_STRIP,0,samples);
|
|
|
|
|
|
if (two_waves)
|
|
{
|
|
glVertexPointer(2,GL_FLOAT,0,wavearray2);
|
|
if (loop)
|
|
glDrawArrays(GL_LINE_LOOP,0,samples);
|
|
else
|
|
glDrawArrays(GL_LINE_STRIP,0,samples);
|
|
}
|
|
|
|
|
|
#ifndef USE_GLES1
|
|
if(dots==1) glDisable(GL_LINE_STIPPLE);
|
|
#endif
|
|
|
|
glPopMatrix();
|
|
}
|
|
|
|
void MilkdropWaveform::ModulateOpacityByVolume(RenderContext &context)
|
|
{
|
|
|
|
//modulate volume by opacity
|
|
//
|
|
//set an upper and lower bound and linearly
|
|
//calculate the opacity from 0=lower to 1=upper
|
|
//based on current volume
|
|
|
|
if (context.beatDetect->vol<= modOpacityStart) temp_a=0.0;
|
|
else if (context.beatDetect->vol>=modOpacityEnd) temp_a=a;
|
|
else temp_a=a*((context.beatDetect->vol-modOpacityStart)/(modOpacityEnd-modOpacityStart));
|
|
|
|
}
|
|
|
|
void MilkdropWaveform::MaximizeColors(RenderContext &context)
|
|
{
|
|
|
|
float wave_r_switch=0, wave_g_switch=0, wave_b_switch=0;
|
|
//wave color brightening
|
|
//
|
|
//forces max color value to 1.0 and scales
|
|
// the rest accordingly
|
|
if(mode==Blob2 || mode==Blob5)
|
|
switch(context.texsize)
|
|
{
|
|
case 256: temp_a *= 0.07f; break;
|
|
case 512: temp_a *= 0.09f; break;
|
|
case 1024: temp_a *= 0.11f; break;
|
|
case 2048: temp_a *= 0.13f; break;
|
|
}
|
|
else if(mode==Blob3)
|
|
{
|
|
switch(context.texsize)
|
|
{
|
|
case 256: temp_a *= 0.075f; break;
|
|
case 512: temp_a *= 0.15f; break;
|
|
case 1024: temp_a *= 0.22f; break;
|
|
case 2048: temp_a *= 0.33f; break;
|
|
}
|
|
temp_a*=1.3f;
|
|
temp_a*=std::pow(context.beatDetect->treb , 2.0f);
|
|
}
|
|
|
|
if (maximizeColors==true)
|
|
{
|
|
if(r>=g && r>=b) //red brightest
|
|
{
|
|
wave_b_switch=b*(1/r);
|
|
wave_g_switch=g*(1/r);
|
|
wave_r_switch=1.0;
|
|
}
|
|
else if (b>=g && b>=r) //blue brightest
|
|
{
|
|
wave_r_switch=r*(1/b);
|
|
wave_g_switch=g*(1/b);
|
|
wave_b_switch=1.0;
|
|
|
|
}
|
|
|
|
else if (g>=b && g>=r) //green brightest
|
|
{
|
|
wave_b_switch=b*(1/g);
|
|
wave_r_switch=r*(1/g);
|
|
wave_g_switch=1.0;
|
|
}
|
|
|
|
|
|
glColor4f(wave_r_switch, wave_g_switch, wave_b_switch, temp_a * masterAlpha);
|
|
}
|
|
else
|
|
{
|
|
glColor4f(r, g, b, temp_a * masterAlpha);
|
|
}
|
|
}
|
|
|
|
|
|
void MilkdropWaveform::WaveformMath(RenderContext &context)
|
|
{
|
|
|
|
int i;
|
|
|
|
float r, theta;
|
|
|
|
float offset;
|
|
|
|
float wave_x_temp=0;
|
|
float wave_y_temp=0;
|
|
|
|
float cos_rot;
|
|
float sin_rot;
|
|
|
|
offset=x-.5;
|
|
float temp_y;
|
|
|
|
two_waves = false;
|
|
loop = false;
|
|
|
|
switch(mode)
|
|
{
|
|
|
|
case Circle:
|
|
{
|
|
loop = true;
|
|
rot = 0;
|
|
aspectScale=1.0;
|
|
temp_y=-1*(y-1.0);
|
|
|
|
|
|
samples = 0? 512-32 : context.beatDetect->pcm->numsamples;
|
|
|
|
float inv_nverts_minus_one = 1.0f/(float)(samples);
|
|
|
|
float last_value = context.beatDetect->pcm->pcmdataR[samples-1]+context.beatDetect->pcm->pcmdataL[samples-1];
|
|
float first_value = context.beatDetect->pcm->pcmdataR[0]+context.beatDetect->pcm->pcmdataL[0];
|
|
float offset = first_value-last_value;
|
|
|
|
for ( int i=0;i<samples;i++)
|
|
{
|
|
|
|
float value = context.beatDetect->pcm->pcmdataR[i]+context.beatDetect->pcm->pcmdataL[i];
|
|
value += offset * (i/(float)samples);
|
|
|
|
r=(0.5 + 0.4f*.12*value*scale + mystery)*.5;
|
|
theta=i*inv_nverts_minus_one*6.28f + context.time*0.2f;
|
|
|
|
wavearray[i][0]=(r*cos(theta)*(context.aspectCorrect? context.aspectRatio : 1.0)+x);
|
|
wavearray[i][1]=(r*sin(theta)+temp_y);
|
|
}
|
|
}
|
|
|
|
break;
|
|
|
|
case RadialBlob://circularly moving waveform
|
|
|
|
rot = 0;
|
|
aspectScale = context.aspectRatio;
|
|
|
|
temp_y=-1*(y-1.0);
|
|
|
|
samples = 512-32;
|
|
for ( int i=0;i<512-32;i++)
|
|
{
|
|
theta=context.beatDetect->pcm->pcmdataL[i+32]*0.06*scale * 1.57 + context.time*2.3;
|
|
r=(0.53 + 0.43*context.beatDetect->pcm->pcmdataR[i]*0.12*scale+ mystery)*.5;
|
|
|
|
wavearray[i][0]=(r*cos(theta)*(context.aspectCorrect ? context.aspectRatio : 1.0)+x);
|
|
wavearray[i][1]=(r*sin(theta)+temp_y);
|
|
}
|
|
|
|
break;
|
|
|
|
case Blob2://EXPERIMENTAL
|
|
|
|
temp_y=-1*(y-1.0);
|
|
rot = 0;
|
|
aspectScale =1.0;
|
|
samples = 512-32;
|
|
|
|
for ( int i=0;i<512-32;i++)
|
|
{
|
|
wavearray[i][0]=(context.beatDetect->pcm->pcmdataR[i]*scale*0.5*(context.aspectCorrect ? context.aspectRatio : 1.0) + x);
|
|
wavearray[i][1]=(context.beatDetect->pcm->pcmdataL[i+32]*scale*0.5 + temp_y);
|
|
}
|
|
|
|
break;
|
|
|
|
case Blob3://EXPERIMENTAL
|
|
|
|
temp_y=-1*(y-1.0);
|
|
|
|
rot = 0;
|
|
aspectScale =1.0;
|
|
|
|
samples = 512-32;
|
|
|
|
for ( int i=0;i<512-32;i++)
|
|
{
|
|
wavearray[i][0]=(context.beatDetect->pcm->pcmdataR[i] * scale*0.5 + x);
|
|
wavearray[i][1]=( (context.beatDetect->pcm->pcmdataL[i+32]*scale*0.5 + temp_y));
|
|
}
|
|
|
|
break;
|
|
|
|
case DerivativeLine://single x-axis derivative waveform
|
|
{
|
|
rot =-mystery*90;
|
|
aspectScale=1.0;
|
|
|
|
temp_y=-1*(y-1.0);
|
|
|
|
float w1 = 0.45f + 0.5f*(mystery*0.5f + 0.5f);
|
|
float w2 = 1.0f - w1;
|
|
float xx[512], yy[512];
|
|
samples = 512-32;
|
|
|
|
for (int i=0; i<512-32; i++)
|
|
{
|
|
xx[i] = -1.0f + 2.0f*(i/(512.0-32.0)) + x;
|
|
yy[i] =0.4* context.beatDetect->pcm->pcmdataL[i]*0.47f*scale + temp_y;
|
|
xx[i] += 0.4*context.beatDetect->pcm->pcmdataR[i]*0.44f*scale;
|
|
|
|
if (i>1)
|
|
{
|
|
xx[i] = xx[i]*w2 + w1*(xx[i-1]*2.0f - xx[i-2]);
|
|
yy[i] = yy[i]*w2 + w1*(yy[i-1]*2.0f - yy[i-2]);
|
|
}
|
|
wavearray[i][0]=xx[i];
|
|
wavearray[i][1]=yy[i];
|
|
} }
|
|
break;
|
|
|
|
case Blob5://EXPERIMENTAL
|
|
|
|
rot = 0;
|
|
aspectScale =1.0;
|
|
|
|
temp_y=-1*(y-1.0);
|
|
|
|
cos_rot = cosf(context.time*0.3f);
|
|
sin_rot = sinf(context.time*0.3f);
|
|
samples = 512-32;
|
|
|
|
for ( int i=0;i<512-32;i++)
|
|
{
|
|
float x0 = (context.beatDetect->pcm->pcmdataR[i]*context.beatDetect->pcm->pcmdataL[i+32] + context.beatDetect->pcm->pcmdataL[i+32]*context.beatDetect->pcm->pcmdataR[i]);
|
|
float y0 = (context.beatDetect->pcm->pcmdataR[i]*context.beatDetect->pcm->pcmdataR[i] - context.beatDetect->pcm->pcmdataL[i+32]*context.beatDetect->pcm->pcmdataL[i+32]);
|
|
wavearray[i][0]=((x0*cos_rot - y0*sin_rot)*scale*0.5*(context.aspectCorrect ? context.aspectRatio : 1.0) + x);
|
|
wavearray[i][1]=( (x0*sin_rot + y0*cos_rot)*scale*0.5 + temp_y);
|
|
}
|
|
break;
|
|
|
|
case Line://single waveform
|
|
|
|
|
|
wave_x_temp=-2*0.4142*(fabs(fabs(mystery)-.5)-.5);
|
|
|
|
rot = -mystery*90;
|
|
aspectScale =1.0+wave_x_temp;
|
|
wave_x_temp=-1*(x-1.0);
|
|
samples = 0 ? 512-32 : context.beatDetect->pcm->numsamples;
|
|
|
|
for ( int i=0;i< samples;i++)
|
|
{
|
|
|
|
wavearray[i][0]=i/(float) samples;
|
|
wavearray[i][1]=context.beatDetect->pcm->pcmdataR[i]*.04*scale+wave_x_temp;
|
|
|
|
}
|
|
// printf("%f %f\n",renderTarget->texsize*wave_y_temp,wave_y_temp);
|
|
|
|
break;
|
|
|
|
case DoubleLine://dual waveforms
|
|
|
|
|
|
wave_x_temp=-2*0.4142*(fabs(fabs(mystery)-.5)-.5);
|
|
|
|
rot = -mystery*90;
|
|
aspectScale =1.0+wave_x_temp;
|
|
|
|
|
|
samples = 0 ? 512-32 : context.beatDetect->pcm->numsamples;
|
|
two_waves = true;
|
|
|
|
double y_adj = y*y*.5;
|
|
|
|
wave_y_temp=-1*(x-1);
|
|
|
|
for ( int i=0;i<samples;i++)
|
|
{
|
|
wavearray[i][0]=i/((float) samples);
|
|
wavearray[i][1]= context.beatDetect->pcm->pcmdataL[i]*.04*scale+(wave_y_temp+y_adj);
|
|
}
|
|
|
|
for ( int i=0;i<samples;i++)
|
|
{
|
|
wavearray2[i][0]=i/((float) samples);
|
|
wavearray2[i][1]=context.beatDetect->pcm->pcmdataR[i]*.04*scale+(wave_y_temp-y_adj);
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
}
|