Added waveforms
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neauoire
parent
188463a008
commit
30b12bae2d
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#!/bin/bash
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echo "Formatting.."
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clang-format -i wavpcm.c
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echo "Cleaning.."
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rm -f ../../bin/wavpcm
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echo "Building.."
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mkdir -p ../../bin
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cc -std=c89 -DDEBUG -Wall -Wno-unknown-pragmas -Wpedantic -Wshadow -Wextra -Werror=implicit-int -Werror=incompatible-pointer-types -Werror=int-conversion -Wvla -g -Og -fsanitize=address -fsanitize=undefined -lm wavpcm.c -o ../../bin/wavpcm
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echo "Running.."
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../../bin/wavpcm
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echo "Done."
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#include <stdio.h>
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#include <math.h>
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/*
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Copyright (c) 2020 Devine Lu Linvega
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Permission to use, copy, modify, and distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE.
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*/
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#define PI 3.14159265358979323846
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#define SAMPLES 256
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#define RATE 1
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typedef unsigned char Uint8;
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int
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clamp(int val, int min, int max)
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{
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return (val >= min) ? (val <= max) ? val : max : min;
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}
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Uint8
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sinw(int i)
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{
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return 0x7f * sin(i * RATE * 2 * PI / SAMPLES);
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}
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Uint8
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triw(int i)
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{
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if(i < 0x40)
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return i * 2;
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if(i >= 0xc0)
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return (i - 0xc0) * 2 - 0x7f;
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return 0x7f - (i - 0x40) * 2;
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}
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Uint8
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sqrw(int i)
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{
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return ((i * RATE) % 0xff) < 0x80 ? 0x7f : 0x80;
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}
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int
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main()
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{
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int i;
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printf("%d:\n\n", SAMPLES);
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for(i = 0; i < SAMPLES; ++i) {
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if(i % 0x10 == 0)
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printf("\n");
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else if(i % 2 == 0)
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printf(" ");
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printf("%02x", (triw(i) + sinw(i)) / 2);
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}
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printf("\n\n");
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return 0;
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}
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@ -8,6 +8,8 @@
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%TOS { #00 SWP }
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%MOD { DUP2 DIV MUL SUB }
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%WAVEFORM { #1000 }
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( devices )
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|00 @System [ &vector $2 &pad $6 &r $2 &g $2 &b $2 ]
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@ -20,6 +22,7 @@
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|70 @Midi [ &vector $2 &channel $1 ¬e $1 &velocity $1 ]
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|80 @Controller [ &vector $2 &button $1 &key $1 ]
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|90 @Mouse [ &vector $2 &x $2 &y $2 &state $1 &chord $1 ]
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|a0 @File [ &vector $2 &success $2 &offset $2 &pad $2 &name $2 &length $2 &load $2 &save $2 ]
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( variables )
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@ -51,34 +54,49 @@
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;on-midi .Midi/vector DEO2
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;on-frame .Screen/vector DEO2
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( load waveform )
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;sin-path .File/name DEO2 #0100 .File/length DEO2 WAVEFORM .File/load DEO2
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;tri-path .File/name DEO2 #0100 .File/length DEO2 WAVEFORM #0100 ADD2 .File/load DEO2
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;sqr-path .File/name DEO2 #0100 .File/length DEO2 WAVEFORM #0200 ADD2 .File/load DEO2
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( find center )
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.Screen/width DEI2 2/ .center/x POK2
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.Screen/height DEI2 2/ .center/y POK2
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( place octave )
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.center/x PEK2 #0050 SUB2 .octave-view/x1 POK2
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.center/x PEK2 #0080 SUB2 .octave-view/x1 POK2
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.center/y PEK2 8+ .octave-view/y1 POK2
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.octave-view/x1 PEK2 #0048 ADD2 .octave-view/x2 POK2
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.octave-view/x1 PEK2 #0050 ADD2 .octave-view/x2 POK2
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.octave-view/y1 PEK2 #0018 ADD2 .octave-view/y2 POK2
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( place adsr )
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.center/x PEK2 .adsr-view/x1 POK2
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.center/x PEK2 #0020 SUB2 .adsr-view/x1 POK2
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.center/y PEK2 8+ .adsr-view/y1 POK2
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.adsr-view/x1 PEK2 #0058 ADD2 .adsr-view/x2 POK2
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.adsr-view/x1 PEK2 #00a0 ADD2 .adsr-view/x2 POK2
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.adsr-view/y1 PEK2 #0018 ADD2 .adsr-view/y2 POK2
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( place waveform )
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.center/x PEK2 #0050 SUB2 .wave-view/x1 POK2
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.center/x PEK2 #0080 SUB2 .wave-view/x1 POK2
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.center/y PEK2 #0020 SUB2 .wave-view/y1 POK2
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.wave-view/x1 PEK2 #00a8 ADD2 .wave-view/x2 POK2
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.wave-view/x1 PEK2 #0100 ADD2 .wave-view/x2 POK2
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.wave-view/y1 PEK2 #0020 ADD2 .wave-view/y2 POK2
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( default settings )
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#ff .last-note POK
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#048c .Audio0/adsr DEO2
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#88 .Audio0/volume DEO
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;sine-wave .Audio0/addr DEO2
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;sine-wave/end ;sine-wave SUB2 #0001 SFT2 .Audio0/length DEO2
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WAVEFORM .Audio0/addr DEO2
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#0100 .Audio0/length DEO2
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#011a .Audio1/adsr DEO2
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#88 .Audio1/volume DEO
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WAVEFORM #0100 ADD2 .Audio1/addr DEO2
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#0100 .Audio1/length DEO2
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#1118 .Audio2/adsr DEO2
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#88 .Audio2/volume DEO
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WAVEFORM #0200 ADD2 .Audio2/addr DEO2
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#0100 .Audio2/length DEO2
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( inital drawing )
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;draw-octave JSR2
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@ -132,7 +150,7 @@ BRK
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@on-touch-octave-view ( -> )
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.Mouse/x DEI2 .octave-view/x1 PEK2 SUB2 8/ SWP POP #08 NEQ ,&no-mod JNZ
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.Mouse/x DEI2 .octave-view/x1 PEK2 SUB2 8/ SWP POP #09 NEQ ,&no-mod JNZ
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.Mouse/y DEI2 .octave-view/y1 PEK2 SUB2 8/ SWP POP
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DUP #00 NEQ ,&no-incr JNZ
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.octave PEK #01 ADD .octave POK &no-incr
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@ -144,10 +162,11 @@ BRK
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BRK
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&no-mod
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.Mouse/x DEI2 .octave-view/x1 PEK2 SUB2 8/ SWP POP #06 GTH ,&no-key JNZ
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.Mouse/x DEI2 .octave-view/x1 PEK2 SUB2 8/ DUP2 SWP POP .last-note POK ;notes ADD2 GET ;play JSR2
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( release ) #00 .Mouse/state DEO
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;draw-octave JSR2
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&no-key
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BRK
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@ -170,6 +189,14 @@ BRK
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.Audio0/adsr #01 ADD DEI
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DUP #f0 AND STH #01 .Mouse/state DEI #10 EQU #0e MUL ADD ADD #0f AND STHr ADD
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.Audio0/adsr #01 ADD DEO &no-r
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DUP #05 NEQ ,&no-left JNZ
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.Audio0/volume DEI
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#10 .Mouse/state DEI #10 EQU #e0 MUL ADD ADD
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.Audio0/volume DEO &no-left
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DUP #06 NEQ ,&no-right JNZ
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.Audio0/volume DEI
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DUP #f0 AND STH #01 .Mouse/state DEI #10 EQU #0e MUL ADD ADD #0f AND STHr ADD
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.Audio0/volume DEO &no-right
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POP
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( release ) #00 .Mouse/state DEO
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@ -223,7 +250,7 @@ BRK
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@play ( pitch -- )
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.octave PEK #0c MUL ADD .Audio0/pitch DEO
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DUP .octave PEK #0c MUL ADD .Audio0/pitch DEO
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RTN
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@ -258,8 +285,9 @@ RTN
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OVR2 #0028 ADD2 OVR2 ;keys-middle-icns #21 .last-note PEK #05 EQU ADD ;draw-key JSR2
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SWP2 #0030 ADD2 SWP2 ;keys-right-icns #21 .last-note PEK #06 EQU ADD ;draw-key JSR2
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.octave-view/x1 PEK2 #0048 ADD2 .Screen/x DEO2
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;arrow-icns .Screen/addr DEO2
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.octave-view/x1 PEK2 #0040 ADD2 .Screen/x DEO2
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.octave-view/y1 PEK2 .Screen/y DEO2
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#21 .Screen/color DEO
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@ -268,7 +296,6 @@ RTN
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#21 .Screen/color DEO
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;font-hex .octave PEK #03 ADD #00 SWP #0008 MUL2 ADD2 .Screen/addr DEO2
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.octave-view/x2 PEK2 #0008 SUB2 .Screen/x DEO2
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.octave-view/y1 PEK2 8+ .Screen/y DEO2
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#23 .Screen/color DEO
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@ -306,6 +333,14 @@ RTN
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.Audio0/adsr #01 ADD DEI #0f AND
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;draw-knob JSR2
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( volume )
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.adsr-view/x2 PEK2 #0028 SUB2 .adsr-view/y1 PEK2
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.Audio0/volume DEI #04 SFT
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;draw-knob JSR2
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.adsr-view/x2 PEK2 #0010 SUB2 .adsr-view/y1 PEK2
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.Audio0/volume DEI #0f AND
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;draw-knob JSR2
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RTN
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@draw-wave ( -- )
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@ -321,7 +356,7 @@ RTN
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.wave-view/x1 PEK2 .Screen/x DEO2
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( waveform )
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#00 #a8
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#00 #ff
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&loop
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( dotted line )
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OVR #01 AND ,&no-dot JNZ
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@ -490,38 +525,6 @@ RTN
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007c 8280 8080 827c 00fc 8282 8282 82fc
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007c 8280 f080 827c 007c 8280 f080 8080 ]
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@sine-wave [
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0004 090e 1217 1c20 2529 2e32 363b 3f43
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474b 4e52 5659 5c60 6365 686b 6d70 7274
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7677 797a 7b7c 7d7e 7e7e 7e7e 7e7e 7d7c
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7b7a 7978 7674 7270 6e6b 6966 6360 5d5a
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5753 4f4c 4844 403c 3833 2f2a 2621 1d18
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140f 0a05 01fc f7f2 eee9 e4e0 dbd7 d2ce
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cac5 c1bd b9b5 b1ae aaa7 a3a0 9d9a 9795
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9290 8e8c 8a88 8785 8483 8282 8181 8181
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8181 8282 8384 8687 898a 8c8e 9193 9598
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9b9e a1a4 a8ab afb2 b6ba bec2 c6cb cfd3
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d8dc e1e6 eaef f4f8 ] &end
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@tri-wave [
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0002 0406 080a 0c0e 1012 1416 181a 1c1e
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2022 2426 282a 2c2e 3032 3436 383a 3c3e
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4041 4345 4749 4b4d 4f51 5355 5759 5b5d
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5f61 6365 6769 6b6d 6f71 7375 7779 7b7d
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7f7d 7b79 7775 7371 6f6d 6b69 6765 6361
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5f5d 5b59 5755 5351 4f4d 4b49 4745 4341
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403e 3c3a 3836 3432 302e 2c2a 2826 2422
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201e 1c1a 1816 1412 100e 0c0a 0806 0402
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00fe fcfa f8f6 f4f2 f0ee ecea e8e6 e4e2
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e0de dcda d8d6 d4d2 d0ce ccca c8c6 c4c2
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c1bf bdbb b9b7 b5b3 ]
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@arc [
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8000 8d00 9a02 a706 b40b c011 cb18 d520
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df2a e734 ee40 f44b f958 fd65 ff72 ff80
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ff8d fd9a f9a7 f4b4 eec0 e7cb dfd5 d5df
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cbe7 c0ee b4f4 a7f9 9afd 8dff 80ff 72ff
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65fd 58f9 4bf4 40ee 34e7 2adf 20d5 18cb
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11c0 0bb4 06a7 029a 008d 0080 0072 0265
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0658 0b4b 113f 1834 202a 2a20 3418 3f11
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4b0b 5806 6502 7200 ]
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@sin-path "projects/sounds/sin.pcm $1
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@tri-path "projects/sounds/tri.pcm $1
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@sqr-path "projects/sounds/sqr.pcm $1
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@ -0,0 +1 @@
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