File content as of revision 25:f230af268e8b:

#include "mbed.h"
#include "Front.h"

//Objects-----------------------------------------------------------------------
Sound sound;
Envelope envelope;
Filter filter;

//Sprites-----------------------------------------------------------------------
const int fader[35][5] =   { //Fader Sprite
    { 1,1,1,1,1 },
    { 0,0,1,0,0 },
    { 0,0,1,0,0 },
    { 0,0,1,0,0 },
    { 0,0,1,0,0 },
    { 1,1,1,0,0 },
    { 0,0,1,0,0 },
    { 0,0,1,0,0 },
    { 0,0,1,0,0 },
    { 0,0,1,0,0 },
    { 1,1,1,0,0 },
    { 0,0,1,0,0 },
    { 0,0,1,0,0 },
    { 0,0,1,0,0 },
    { 0,0,1,0,0 },
    { 1,1,1,0,0 },
    { 0,0,1,0,0 },
    { 0,0,1,0,0 },
    { 0,0,1,0,0 },
    { 0,0,1,0,0 },
    { 1,1,1,0,0 },
    { 0,0,1,0,0 },
    { 0,0,1,0,0 },
    { 0,0,1,0,0 },
    { 0,0,1,0,0 },
    { 1,1,1,0,0 },
    { 0,0,1,0,0 },
    { 0,0,1,0,0 },
    { 0,0,1,0,0 },
    { 0,0,1,0,0 },
    { 1,1,1,0,0 },
    { 0,0,1,0,0 },
    { 0,0,1,0,0 },
    { 0,0,1,0,0 },
    { 1,1,1,1,1 },
};

const int sin_wav[6][28] =   {//sub 1 sin sprite
    { 0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,0,0,0,0 },
    { 0,1,1,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,1,1,0,0 },
    { 1,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,1,0 },
    { 0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,1 },
    { 0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0 },
    { 0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0 },
};
const int tri_wav[6][28] =   {//sub 2 tri sprite
    { 0,0,0,1,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,1,0,0,0,0 },
    { 0,0,1,0,1,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0,0,0,1,0,1,0,0,0 },
    { 0,1,0,0,0,1,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,1,0,0,0,1,0,0 },
    { 1,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,1,0 },
    { 0,0,0,0,0,0,0,1,0,1,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0,0,0,1 },
    { 0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0 },
};
const int square_wav[6][28] =   {//sub 3 sqr sprite
    { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 },
    { 1,1,1,1,1,0,0,0,1,1,1,1,1,0,0,0,1,1,1,1,1,0,0,0,1,1,1,1 },
    { 0,0,0,0,1,0,0,0,1,0,0,0,1,0,0,0,1,0,0,0,1,0,0,0,1,0,0,0 },
    { 0,0,0,0,1,0,0,0,1,0,0,0,1,0,0,0,1,0,0,0,1,0,0,0,1,0,0,0 },
    { 0,0,0,0,1,1,1,1,1,0,0,0,1,1,1,1,1,0,0,0,1,1,1,1,1,0,0,0 },
    { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 },
};

const int Low_pass[19][29]= {//LPF plot
    { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 },
    { 1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 },
    { 0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0 },
    { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,0,0,0,0,0,0,0,0,0,0 },
    { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0 },
    { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0 },
    { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0 },
    { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0 },
    { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0 },
    { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0 },
    { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0 },
    { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0 },
    { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,0 },
    { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0 },
    { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0 },
    { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0 },
    { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0 },
    { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0 },
    { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0 },
};

const int High_pass[19][29]= {//HPF plot
    { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 },
    { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 },
    { 0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0 },
    { 0,0,0,0,0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 },
    { 0,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 },
    { 0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 },
    { 0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 },
    { 0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 },
    { 0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 },
    { 0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 },
    { 0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 },
    { 0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 },
    { 0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 },
    { 0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 },
    { 0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 },
    { 0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 },
    { 0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 },
    { 0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 },
    { 0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 },
};

const int Band_pass[19][29]= {//BPF plot
    { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 },
    { 0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0 },
    { 0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0 },
    { 0,0,0,0,0,0,0,0,0,0,1,1,1,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0 },
    { 0,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0 },
    { 0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0 },
    { 0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0 },
    { 0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0 },
    { 0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0 },
    { 0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0 },
    { 0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0 },
    { 0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0 },
    { 0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,0 },
    { 0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0 },
    { 0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0 },
    { 0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0 },
    { 0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0 },
    { 0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0 },
    { 0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0 },
};

//Gloabal Variables
volatile int g_isr_flag; //used for sound generation
volatile extern int silent_flag; //used for note release


//constructor/destructor
Front::Front()
{
}
Front::~Front()
{
}
//PUBLIC------------------------------------------------------------------------

void Front::frontrun(N5110 &lcd, Gamepad &pad, int submenu)
{
    //printf("G_ISR_FLAG= %d\n",g_isr_flag); //DEBUG
    frontsetup(lcd, pad, submenu,0, true);  //Initialises front pannel display
    initialise(pad,lcd,submenu);
    frequency=frequency_convert(pad);
    menuflag=1;  //sets up flags
    release_flag=silent_flag=0;
    used=1;  //initialises vairables
    filter_type=envelope_in=0;
    a=d=s=r=17; //starting adsr values (1->35)
    noteon=false;
#ifdef CSV
    itterator=0; //sets itterator for CSV OUTPUT
#endif

    while (menuflag==1) {
#ifdef SLOW_TIME
        print_SLOWTIME_out(out,noteon,a,d,s,r,release_flag,silent_flag);
#endif
        if (noteon==true && g_isr_flag == 1) {
            pad.write_u16(out);
            envelope_in=(sound.sound_main(false,submenu,frequency)-32767); //value around 0
            envelope_in=filter.LPF(envelope_in,false);
            if (release_flag==0) {
                out=(envelope.env_in(a,d,s,r,envelope_in,false));//value around 32767
                //out=envelope_in+32767;
            }  else {
                out=envelope.release(s,r,envelope_in,false);
                if (silent_flag==1) {
                    release_flag=0;
                    silent_flag=0;
                    noteon=false;
                    out=envelope.env_in(a,d,s,r,out,true);
                    out=0;
                }
            }
            g_isr_flag=0;
#ifdef CSV
            printf("%d,%d\n",itterator,out);
            itterator++;
#endif
        }
        dir=pad.get_direction();
        if (dir!=dir_1) {
            printf("dir =%d\n",dir); //debug
            //used=parameter_manager(pad,dir,a,d,s,r);
            if(dir==3) {
                used++;
                if (used>5) {
                    used=5;
                }
            }
            if (dir==7) {
                used--;
                if(used<1) {
                    used=1;
                }
            }
            if (dir==1) {
                if (used==1) {
                    a=incrament_adsr(used,a,1);
                }
                if (used==2) {
                    d=incrament_adsr(used,d,1);
                }
                if (used==3) {
                    s=incrament_adsr(used,s,1);
                }
                if (used==4) {
                    r=incrament_adsr(used,r,1);
                }
            }

            if (dir==5) {
                if (used==1) {
                    a=incrament_adsr(used,a,-1);
                }
                if (used==2) {
                    d=incrament_adsr(used,d,-1);
                }
                if (used==3) {
                    s=incrament_adsr(used,s,-1);
                }
                if (used==4) {
                    r=incrament_adsr(used,r,-1);
                }
            }
            frontsetup(lcd,pad,submenu,filter_type,false);
            printsliders(lcd,a,d,s,r,used);
            wait_ms(50);
        } //END if DIR
        if ( pad.A_pressed())  { //NOTE ON
            printf("NOTE_ON\n");
            noteon=true;
            out=envelope.env_in(a,d,s,r,out,true);
            frequency=frequency_convert(pad);
        }
        if ( pad.B_pressed())  { //NOTE OFF
            //printf("NOTE_OFF (W.release)\n");
            release_flag=1;
            envelope_in=envelope.release(s,r,envelope_in,true);
            pad.reset_buttons();
        }

        if (pad.start_pressed())  { //go back menu
            // printf("start pressed\n");
            printf("Waveforms Sub selected\n"); //debug
            noteon=false;
            menuflag=0; //sets flag
        }
        dir=dir_1;
        sleep(); //puts sleep until ISR wakes up
    }
}

//PRIVATE-----------------------------------------------------------------------

void Front::frontsetup(N5110 &lcd, Gamepad &pad, int submenu, int filter_type, bool initial)
{
    if (initial==true) {
        printsliders(lcd,17,17,17,17,1);
        printf("front setup complete\n\n");

    }
    lcd.clear();
    lcd.printString("A D S R",3,5);
    printfader(lcd,3,3);
    printfader(lcd,15,3);
    printfader(lcd,27,3);
    printfader(lcd,39,3);
    lcd.drawRect(50,3,30,8,FILL_TRANSPARENT);
    printwav(lcd,submenu);
    printfilter(lcd, 3);
    lcd.refresh();
}

void Front::initialise(Gamepad &pad, N5110 &lcd, int submenu)
{
    out=sound.sound_main(true,submenu,440); //initialises external variables
    out = filter.LPF(out,true); //initialises LPF Filter
    out=envelope.env_in(17,17,17,17,out,true);
    out=envelope.release(17,17,out,true);
    printsliders(lcd,17,17,17,17,1);  //prints initialsliders
    pad.reset_buttons();
}

void Front::printsliders(N5110 &lcd, int a, int d, int s, int r, int used)
{
    if(used==0) {
        printslider(lcd,3,a,false);
        printslider(lcd,15,d,false);
        printslider(lcd,27,s,false);
        printslider(lcd,39,r,false);
    }
    if(used==1) {
        printslider(lcd,3,a,true);
        printslider(lcd,15,d,false);
        printslider(lcd,27,s,false);
        printslider(lcd,39,r,false);
    }
    if(used==2) {
        printslider(lcd,3,a,false);
        printslider(lcd,15,d,true);
        printslider(lcd,27,s,false);
        printslider(lcd,39,r,false);
    }
    if(used==3) {
        printslider(lcd,3,a,false);
        printslider(lcd,15,d,false);
        printslider(lcd,27,s,true);
        printslider(lcd,39,r,false);
    }
    if(used==4) {
        printslider(lcd,3,a,false);
        printslider(lcd,15,d,false);
        printslider(lcd,27,s,false);
        printslider(lcd,39,r,true);
    }
    if(used>=5) {
        printslider(lcd,3,a,false);
        printslider(lcd,15,d,false);
        printslider(lcd,27,s,false);
        printslider(lcd,39,r,false);
        }
    lcd.refresh();
}

void Front::printslider(N5110 &lcd, int x_val, int y_val, bool use)
{
    if (use==true) {
        lcd.drawRect(x_val,37-y_val,5,2,FILL_BLACK);
    }
    if (use==false) {
        lcd.drawRect(x_val,37-y_val,5,1,FILL_BLACK);
    }
}


void Front::printfader(N5110 &lcd, int x, int y)
{
    // x origin, y origin, rows, cols, sprite
    lcd.drawSprite(x,y,35,5,(int *)fader);
}

void Front::printwav(N5110 &lcd, int submenu)
{
    if (submenu==1) {
        // x origin, y origin, rows, cols, sprite
        lcd.drawSprite(51,4,6,28,(int *)sin_wav);
    }
    if (submenu==2) {
        // x origin, y origin, rows, cols, sprite
        lcd.drawSprite(51,4,6,28,(int *)tri_wav);
    }
    if (submenu==3) {
        // x origin, y origin, rows, cols, sprite
        lcd.drawSprite(51,4,6,28,(int *)square_wav);
    }
}

void Front::printfilter(N5110 &lcd, int filter_type)
{
    if (filter_type>=1) {
        lcd.drawLine(51,32,51,12,1); //y axis
        lcd.drawLine(51,32,81,32,1); //x axis
        if (filter_type==1) {
            lcd.drawSprite(52,13,19,29,(int *)Low_pass);
            lcd.printString("L",45,2);
        }
        if (filter_type==2) {
            lcd.drawSprite(52,13,19,29,(int *)High_pass);
            lcd.printString("H",45,2);
        }
        if (filter_type==3) {
            lcd.drawSprite(52,13,19,29,(int *)Band_pass);
            lcd.printString("B",45,2);
        }
    }
}

int Front::parameter_manager(Gamepad &pad, int dir, int a, int d, int s, int r)
{

    return(used);
}

int Front::incrament_adsr(int used, int adsr, int ud)
{
    if (used<=4) {
        if (ud==1) {
            adsr++;
            if (adsr>35) {
                adsr--;
            }
        }
        if (ud==-1) {
            adsr--;
            if (adsr<1) {
                adsr++;
            }
        }
    }
    return(adsr);
}

int Front::frequency_convert(Gamepad &pad)
{
    frequency=(440+(pad.read_pot1()*440));
    return(frequency);
}

#ifdef SLOW_TIME
void Front::print_SLOWTIME_out (uint16_t out, bool noteon, int a, int d, int s, int r, int release_flag, int silent_flag)
{
    //Prints all data required in SLOW_TIME
    printf("OUTPUT:%d\n",out);
    printf("NOTEON: %d\n",noteon);
    printf("A:%d,D:%d,S:%d,R:%d\n",a,d,s,r);
    printf("RelFlag=%d, SilFlag=%d\n\n",release_flag,silent_flag);
}
#endif