commit 101deccadf1aec5fe2a7bb2a8e7a2388384d7ce5
parent 585f917e5fd8f0b284b5f3f50062d01f97b49618
Author: Matt Demanett <matt@demanett.net>
Date: Sat, 16 Mar 2019 21:17:15 -0400
Work-in-progress random walk modules.
Diffstat:
15 files changed, 1041 insertions(+), 9 deletions(-)
diff --git a/res-src/Walk-src.svg b/res-src/Walk-src.svg
@@ -0,0 +1,172 @@
+<svg
+ version="1.1"
+ xmlns="http://www.w3.org/2000/svg"
+ xmlns:xlink="http://www.w3.org/1999/xlink"
+ width="45"
+ height="380"
+ viewBox="0 0 45 380"
+>
+ <style>
+ text {
+ fill: #333;
+ font-family: 'Roboto', sans-serif;
+ font-weight: bold;
+ }
+ text.title {
+ font-family: 'Comfortaa', sans-serif;
+ font-weight: normal;
+ }
+ text.brand {
+ font-family: 'Audiowide', sans-serif;
+ font-weight: bold;
+ }
+ </style>
+
+ <defs>
+ <symbol id="knob-medium" viewBox="0 0 45px 45px">
+ <g transform="translate(22.5 22.5)">
+ <polyline points="-5,0 5,0" stroke-width="1" stroke="#00f" />
+ <polyline points="0,-5 0,5" stroke-width="1" stroke="#00f" />
+ <circle cx="0" cy="0" r="14" stroke-width="1" stroke="#00f" fill="none" />
+ </g>
+ </symbol>
+
+ <symbol id="knob-smallest" viewBox="0 0 16px 16px">
+ <g transform="translate(8 8)">
+ <polyline points="-3,0 3,0" stroke-width="1" stroke="#00f" />
+ <polyline points="0,-3 0,3" stroke-width="1" stroke="#00f" />
+ <circle r="7.5" stroke-width="1" stroke="#00f" fill="none" />
+ </g>
+ </symbol>
+
+ <symbol id="knobguide-change" viewBox="0 0 45px 45px">
+ <g transform="translate(22.5 22.5)">
+ <polyline points="0,0 4,0" stroke-width="1.0" stroke="#333" transform="rotate(-240) translate(17 0)" />
+ <polyline points="0,0 2.5,0" stroke-width="0.3" stroke="#333" transform="rotate(-210) translate(17 0)" />
+ <polyline points="0,0 2.5,0" stroke-width="0.3" stroke="#333" transform="rotate(-180) translate(17 0)" />
+ <polyline points="0,0 2.5,0" stroke-width="0.3" stroke="#333" transform="rotate(-150) translate(17 0)" />
+ <polyline points="0,0 2.5,0" stroke-width="0.3" stroke="#333" transform="rotate(-120) translate(17 0)" />
+ <polyline points="0,0 2.5,0" stroke-width="0.3" stroke="#333" transform="rotate(-90) translate(17 0)" />
+ <polyline points="0,0 2.5,0" stroke-width="0.3" stroke="#333" transform="rotate(-60) translate(17 0)" />
+ <polyline points="0,0 2.5,0" stroke-width="0.3" stroke="#333" transform="rotate(-30) translate(17 0)" />
+ <polyline points="0,0 2.5,0" stroke-width="0.3" stroke="#333" transform="rotate(0) translate(17 0)" />
+ <polyline points="0,0 2.5,0" stroke-width="0.3" stroke="#333" transform="rotate(30) translate(17 0)" />
+ <polyline points="0,0 2.5,0" stroke-width="0.3" stroke="#333" transform="rotate(60) translate(17 0)" />
+ </g>
+ </symbol>
+
+ <symbol id="knobguide-centertick" viewBox="0 0 40px 40px">
+ <g transform="translate(20 20)">
+ <g transform="rotate(-90) translate(10 0)">
+ <polyline points="0,0 4,0" stroke-width="1" stroke="#333" />
+ </g>
+ <path d="M 0 -12.5 A 12.5 12.5 0 0 1 12.5 0" stroke="#333" stroke-width="0.5" stroke-linecap="round" fill="none" transform="rotate(20)" />
+ <path d="M 0 -12.5 A 12.5 12.5 0 0 1 12.5 0" stroke="#333" stroke-width="0.5" stroke-linecap="round" fill="none" transform="rotate(43)" />
+ <path d="M 0 -12.5 A 12.5 12.5 0 0 0 -12.5 0" stroke="#333" stroke-width="0.5" stroke-linecap="round" fill="none" transform="rotate(-20)" />
+ <path d="M 0 -12.5 A 12.5 12.5 0 0 0 -12.5 0" stroke="#333" stroke-width="0.5" stroke-linecap="round" fill="none" transform="rotate(-43)" />
+ </g>
+ </symbol>
+
+ <symbol id="knobguide-maxtick" viewBox="0 0 40px 40px">
+ <g transform="translate(20 20)">
+ <g transform="rotate(60) translate(10 0)">
+ <polyline points="0,0 4,0" stroke-width="1" stroke="#333" />
+ </g>
+ <path d="M 0 -12.5 A 12.5 12.5 0 0 1 12.5 0" stroke="#333" stroke-width="0.5" stroke-linecap="round" fill="none" transform="rotate(0)" />
+ <path d="M 0 -12.5 A 12.5 12.5 0 0 1 12.5 0" stroke="#333" stroke-width="0.5" stroke-linecap="round" fill="none" transform="rotate(43)" />
+ <path d="M 0 -12.5 A 12.5 12.5 0 0 0 -12.5 0" stroke="#333" stroke-width="0.5" stroke-linecap="round" fill="none" transform="rotate(0)" />
+ <path d="M 0 -12.5 A 12.5 12.5 0 0 0 -12.5 0" stroke="#333" stroke-width="0.5" stroke-linecap="round" fill="none" transform="rotate(-43)" />
+ </g>
+ </symbol>
+
+ <symbol id="input" viewBox="0 0 24px 24px">
+ <g transform="translate(12 12)">
+ <circle cx="0" cy="0" r="5" stroke-width="1" stroke="#0f0" fill="#0f0" />
+ <circle cx="0" cy="0" r="10.5" stroke-width="3" stroke="#0f0" fill="none" />
+ </g>
+ </symbol>
+
+ <symbol id="output" viewBox="0 0 24px 24px">
+ <g transform="translate(12 12)">
+ <circle cx="0" cy="0" r="5" stroke-width="1" stroke="#f00" fill="#f00" />
+ <circle cx="0" cy="0" r="10.5" stroke-width="3" stroke="#f00" fill="none" />
+ </g>
+ </symbol>
+
+ <symbol id="button-small" viewBox="0 0 9px 9px">
+ <g transform="translate(4.5 4.5)">
+ <circle r="4" stroke-width="1" stroke="#00f" fill="#f00" />
+ </g>
+ </symbol>
+
+ <symbol id="light-small" viewBox="0 0 6.4px 6.4px">
+ <rect width="6.4" height="6.4" fill="#0f0" />
+ </symbol>
+ </defs>
+
+ <rect width="100%" height="100%" fill="#ddd" />
+ <polyline points="1,1 44,1 44,379 1,379 1,1" stroke="#e4e4e4" stroke-width="0.5" fill="none" />
+ <polyline points="0.5,0.5 44.5,0.5 44.5,379.5 0.5,379.5 0.5,0.5" stroke="#ebebeb" stroke-width="0.8" fill="none" />
+ <polyline points="0,0 45,0 45,380 0,380 0,0" stroke="#f2f2f2" stroke-width="1" fill="none" />
+
+ <g transform="rotate(-90) translate(-376 13)">
+ <text class="title" font-size="7pt" letter-spacing="2.5px">WALK</text>
+ <g transform="translate(0 12)">
+ <text class="brand" font-size="7pt" letter-spacing="2px">BGA</text>
+ <rect width="3.0" height="3" fill="#ddd" transform="translate(11.5 -5)" />
+ </g>
+ </g>
+
+ <!-- <polyline points="0,0 0,300" stroke="#0f0" stroke-width="1" fill="none" transform="translate(22.5 0)" /> -->
+
+ <g transform="translate(0 25)">
+ <text font-size="6pt" letter-spacing="1.5px" transform="translate(10 0)">RATE</text>
+ <use id="RATE_PARAM" xlink:href="#knob-medium" transform="translate(0 3)" />
+ <use xlink:href="#knobguide-change" transform="translate(0 3)" />
+ <g transform="translate(5.5 49)">
+ <rect width="34" height="39" rx="5" fill="#fafafa" />
+ <use id="RATE_INPUT" xlink:href="#input" transform="translate(5 3)" />
+ <text font-size="5pt" letter-spacing="2px" transform="translate(11 35)">CV</text>
+ </g>
+ </g>
+
+ <g transform="translate(0 128)">
+ <text font-size="6pt" letter-spacing="1.5px" transform="translate(4.5 0)">OFFSET</text>
+ <use id="OFFSET_PARAM" xlink:href="#knob-smallest" transform="translate(14.5 9)" />
+ <use xlink:href="#knobguide-centertick" transform="translate(2.5 -3)" />
+ </g>
+
+ <g transform="translate(0 169)">
+ <text font-size="6pt" letter-spacing="2.0px" transform="translate(5.5 0)">SCALE</text>
+ <use id="SCALE_PARAM" xlink:href="#knob-smallest" transform="translate(14.5 9)" />
+ <use xlink:href="#knobguide-maxtick" transform="translate(2.5 -3)" />
+ </g>
+
+ <g transform="translate(0 202)">
+ <g transform="translate(0 5)">
+ <g transform="translate(5.5 0)">
+ <rect width="34" height="10" fill="#fafafa" transform="translate(0 78)" />
+ <rect width="34" height="82" rx="5" fill="#fafafa" />
+ <use id="HOLD_INPUT" xlink:href="#input" transform="translate(5 3)" />
+ <text font-size="5pt" letter-spacing="2px" transform="translate(5.5 35)">GATE</text>
+ </g>
+ </g>
+
+ <g transform="translate(0 5)">
+ <g transform="translate(7 41)">
+ <use id="TRACK_PARAM" xlink:href="#button-small" transform="translate(22 -1.3)" />
+ <use id="TRACK_LIGHT" xlink:href="#light-small" transform="translate(0 0)" />
+ <text font-size="5pt" letter-spacing="0.5px" transform="translate(7.3 5.5)">TRK</text>
+ </g>
+
+ <g transform="translate(5.5 54)">
+ <rect width="34" height="10" fill="#bbb" transform="translate(0 -3)" />
+ <rect width="34" height="70" rx="5" fill="#bbb" />
+ <use id="HOLD_OUTPUT" xlink:href="#output" transform="translate(5 0)" />
+ <text font-size="5pt" letter-spacing="2px" transform="translate(5.8 32)">HOLD</text>
+ <use id="OUT_OUTPUT" xlink:href="#output" transform="translate(5 35)" />
+ <text font-size="5pt" letter-spacing="2px" transform="translate(8.3 67)">OUT</text>
+ </g>
+ </g>
+ </g>
+</svg>
diff --git a/res-src/Walk2-src.svg b/res-src/Walk2-src.svg
@@ -0,0 +1,239 @@
+<svg
+ version="1.1"
+ xmlns="http://www.w3.org/2000/svg"
+ xmlns:xlink="http://www.w3.org/1999/xlink"
+ width="210"
+ height="380"
+ viewBox="0 0 210 380"
+>
+ <style>
+ text {
+ fill: #333;
+ font-family: 'Roboto', sans-serif;
+ font-weight: bold;
+ }
+ text.title {
+ font-family: 'Comfortaa', sans-serif;
+ font-weight: normal;
+ }
+ text.brand {
+ font-family: 'Audiowide', sans-serif;
+ font-weight: bold;
+ }
+ </style>
+
+ <defs>
+ <symbol id="display" viewBox="0 0 190px 190px">
+ <rect cx="0" cy="0" width="190" height="190" fill="#222" />
+ </symbol>
+
+ <symbol id="knob-medium" viewBox="0 0 45px 45px">
+ <g transform="translate(22.5 22.5)">
+ <polyline points="-5,0 5,0" stroke-width="1" stroke="#00f" />
+ <polyline points="0,-5 0,5" stroke-width="1" stroke="#00f" />
+ <circle cx="0" cy="0" r="14" stroke-width="1" stroke="#00f" fill="none" />
+ </g>
+ </symbol>
+
+ <symbol id="knob-smallest" viewBox="0 0 16px 16px">
+ <g transform="translate(8 8)">
+ <polyline points="-3,0 3,0" stroke-width="1" stroke="#00f" />
+ <polyline points="0,-3 0,3" stroke-width="1" stroke="#00f" />
+ <circle r="7.5" stroke-width="1" stroke="#00f" fill="none" />
+ </g>
+ </symbol>
+
+ <symbol id="knobguide-change" viewBox="0 0 45px 45px">
+ <g transform="translate(22.5 22.5)">
+ <polyline points="0,0 4,0" stroke-width="1.0" stroke="#333" transform="rotate(-240) translate(17 0)" />
+ <polyline points="0,0 2.5,0" stroke-width="0.3" stroke="#333" transform="rotate(-210) translate(17 0)" />
+ <polyline points="0,0 2.5,0" stroke-width="0.3" stroke="#333" transform="rotate(-180) translate(17 0)" />
+ <polyline points="0,0 2.5,0" stroke-width="0.3" stroke="#333" transform="rotate(-150) translate(17 0)" />
+ <polyline points="0,0 2.5,0" stroke-width="0.3" stroke="#333" transform="rotate(-120) translate(17 0)" />
+ <polyline points="0,0 2.5,0" stroke-width="0.3" stroke="#333" transform="rotate(-90) translate(17 0)" />
+ <polyline points="0,0 2.5,0" stroke-width="0.3" stroke="#333" transform="rotate(-60) translate(17 0)" />
+ <polyline points="0,0 2.5,0" stroke-width="0.3" stroke="#333" transform="rotate(-30) translate(17 0)" />
+ <polyline points="0,0 2.5,0" stroke-width="0.3" stroke="#333" transform="rotate(0) translate(17 0)" />
+ <polyline points="0,0 2.5,0" stroke-width="0.3" stroke="#333" transform="rotate(30) translate(17 0)" />
+ <polyline points="0,0 2.5,0" stroke-width="0.3" stroke="#333" transform="rotate(60) translate(17 0)" />
+ </g>
+ </symbol>
+
+ <symbol id="knobguide-centertick" viewBox="0 0 40px 40px">
+ <g transform="translate(20 20)">
+ <g transform="rotate(-90) translate(10 0)">
+ <polyline points="0,0 4,0" stroke-width="1" stroke="#333" />
+ </g>
+ <path d="M 0 -12.5 A 12.5 12.5 0 0 1 12.5 0" stroke="#333" stroke-width="0.5" stroke-linecap="round" fill="none" transform="rotate(20)" />
+ <path d="M 0 -12.5 A 12.5 12.5 0 0 1 12.5 0" stroke="#333" stroke-width="0.5" stroke-linecap="round" fill="none" transform="rotate(43)" />
+ <path d="M 0 -12.5 A 12.5 12.5 0 0 0 -12.5 0" stroke="#333" stroke-width="0.5" stroke-linecap="round" fill="none" transform="rotate(-20)" />
+ <path d="M 0 -12.5 A 12.5 12.5 0 0 0 -12.5 0" stroke="#333" stroke-width="0.5" stroke-linecap="round" fill="none" transform="rotate(-43)" />
+ </g>
+ </symbol>
+
+ <symbol id="knobguide-maxtick" viewBox="0 0 40px 40px">
+ <g transform="translate(20 20)">
+ <g transform="rotate(60) translate(10 0)">
+ <polyline points="0,0 4,0" stroke-width="1" stroke="#333" />
+ </g>
+ <path d="M 0 -12.5 A 12.5 12.5 0 0 1 12.5 0" stroke="#333" stroke-width="0.5" stroke-linecap="round" fill="none" transform="rotate(0)" />
+ <path d="M 0 -12.5 A 12.5 12.5 0 0 1 12.5 0" stroke="#333" stroke-width="0.5" stroke-linecap="round" fill="none" transform="rotate(43)" />
+ <path d="M 0 -12.5 A 12.5 12.5 0 0 0 -12.5 0" stroke="#333" stroke-width="0.5" stroke-linecap="round" fill="none" transform="rotate(0)" />
+ <path d="M 0 -12.5 A 12.5 12.5 0 0 0 -12.5 0" stroke="#333" stroke-width="0.5" stroke-linecap="round" fill="none" transform="rotate(-43)" />
+ </g>
+ </symbol>
+
+ <symbol id="input" viewBox="0 0 24px 24px">
+ <g transform="translate(12 12)">
+ <circle cx="0" cy="0" r="5" stroke-width="1" stroke="#0f0" fill="#0f0" />
+ <circle cx="0" cy="0" r="10.5" stroke-width="3" stroke="#0f0" fill="none" />
+ </g>
+ </symbol>
+
+ <symbol id="output" viewBox="0 0 24px 24px">
+ <g transform="translate(12 12)">
+ <circle cx="0" cy="0" r="5" stroke-width="1" stroke="#f00" fill="#f00" />
+ <circle cx="0" cy="0" r="10.5" stroke-width="3" stroke="#f00" fill="none" />
+ </g>
+ </symbol>
+
+ <symbol id="button-small" viewBox="0 0 9px 9px">
+ <g transform="translate(4.5 4.5)">
+ <circle r="4" stroke-width="1" stroke="#00f" fill="#f00" />
+ </g>
+ </symbol>
+
+ <symbol id="light-small" viewBox="0 0 6.4px 6.4px">
+ <rect width="6.4" height="6.4" fill="#0f0" />
+ </symbol>
+ </defs>
+
+ <rect width="100%" height="100%" fill="#ddd" />
+ <polyline points="1,1 209,1 209,379 1,379 1,1" stroke="#e4e4e4" stroke-width="0.5" fill="none" />
+ <polyline points="0.5,0.5 209.5,0.5 209.5,379.5 0.5,379.5 0.5,0.5" stroke="#ebebeb" stroke-width="0.8" fill="none" />
+ <polyline points="0,0 210,0 210,380 0,380 0,0" stroke="#f2f2f2" stroke-width="1" fill="none" />
+
+ <!-- <rect width="70" height="20" fill="#0f0" transform="translate(0 0)" /> -->
+ <!-- <rect width="70" height="20" fill="#0f0" transform="translate(140 0)" /> -->
+ <!-- <rect width="65" height="20" fill="#0f0" transform="translate(0 360)" /> -->
+ <!-- <rect width="65" height="20" fill="#0f0" transform="translate(145 360)" /> -->
+ <text class="title" x="69" y="19" font-size="12pt" letter-spacing="4px">WALK2</text>
+ <g transform="translate(65 374)">
+ <text class="brand" font-size="8pt" letter-spacing="2px">BOGAUDIO</text>
+ <rect width="3.0" height="3" fill="#ddd" transform="translate(24 -5)" />
+ </g>
+
+ <!-- <polyline points="0,0 0,380" stroke="#0f0" stroke-width="1" fill="none" transform="translate(10 0)" /> -->
+ <!-- <polyline points="0,0 0,380" stroke="#0f0" stroke-width="1" fill="none" transform="translate(54.5 0)" /> -->
+ <!-- <polyline points="0,0 0,380" stroke="#0f0" stroke-width="1" fill="none" transform="translate(105 0)" /> -->
+ <!-- <polyline points="0,0 0,380" stroke="#0f0" stroke-width="1" fill="none" transform="translate(154.5 0)" /> -->
+ <!-- <polyline points="0,0 0,380" stroke="#0f0" stroke-width="1" fill="none" transform="translate(200 0)" /> -->
+ <!-- <polyline points="0,0 210,0" stroke="#0f0" stroke-width="1" fill="none" transform="translate(0 259)" /> -->
+ <!-- <polyline points="0,0 210,0" stroke="#0f0" stroke-width="1" fill="none" transform="translate(0 254.5)" /> -->
+ <!-- <polyline points="0,0 210,0" stroke="#0f0" stroke-width="1" fill="none" transform="translate(0 296)" /> -->
+ <!-- <polyline points="0,0 210,0" stroke="#0f0" stroke-width="1" fill="none" transform="translate(0 320.5)" /> -->
+
+ <g transform="translate(10 25)">
+ <use id="DISPLAY_WIDGET" xlink:href="#display" />
+ </g>
+
+ <g transform="translate(0 227)">
+ <g transform="translate(6 0)">
+ <text font-size="8pt" transform="translate(45 0)">X</text>
+ <polyline points="0,0 30,0" stroke="#333" stroke-width="1" fill="none" transform="translate(13 -4)" />
+ <polyline points="0,0 30,0" stroke="#333" stroke-width="1" fill="none" transform="translate(53 -4)" />
+ </g>
+ <g transform="translate(111 0)">
+ <text font-size="8pt" transform="translate(40 0)">Y</text>
+ <polyline points="0,0 30,0" stroke="#333" stroke-width="1" fill="none" transform="translate(8 -4)" />
+ <polyline points="0,0 30,0" stroke="#333" stroke-width="1" fill="none" transform="translate(48 -4)" />
+ </g>
+ </g>
+
+ <g transform="translate(12 235)">
+ <g transform="translate(-2 0)">
+ <text font-size="7pt" letter-spacing="1.5px" transform="translate(9 33.5) rotate(270)">RATE</text>
+ <use id="RATE_X_PARAM" xlink:href="#knob-medium" transform="translate(10 -3)" />
+ </g>
+ <use xlink:href="#knobguide-change" transform="translate(8 -3)" />
+ </g>
+
+ <g transform="translate(145.5 235)">
+ <g transform="translate(-2 0)">
+ <text font-size="7pt" letter-spacing="1.5px" transform="translate(47 5) rotate(90)">RATE</text>
+ <use id="RATE_Y_PARAM" xlink:href="#knob-medium" transform="translate(0 -3)" />
+ </g>
+ <use xlink:href="#knobguide-change" transform="translate(-2 -3)" />
+ </g>
+
+ <g transform="translate(105 234)">
+ <text font-size="7pt" letter-spacing="2px" transform="translate(3.3 17) rotate(270)">OFF</text>
+
+ <use id="OFFSET_X_PARAM" xlink:href="#knob-smallest" transform="translate(-30 0)" />
+ <use xlink:href="#knobguide-centertick" transform="translate(-42 -12)" />
+
+ <use id="OFFSET_Y_PARAM" xlink:href="#knob-smallest" transform="translate(14 0)" />
+ <use xlink:href="#knobguide-centertick" transform="translate(2 -12)" />
+ </g>
+
+ <g transform="translate(105 262.5)">
+ <text font-size="7pt" letter-spacing="2px" transform="translate(3.3 17) rotate(270)">SCL</text>
+
+ <use id="SCALE_X_PARAM" xlink:href="#knob-smallest" transform="translate(-30 0)" />
+ <use xlink:href="#knobguide-maxtick" transform="translate(-42 -12)" />
+
+ <use id="SCALE_Y_PARAM" xlink:href="#knob-smallest" transform="translate(14 0)" />
+ <use xlink:href="#knobguide-maxtick" transform="translate(2 -12)" />
+ </g>
+
+ <g transform="translate(0 292)">
+ <g transform="translate(72 0)">
+ <use id="TRACK_X_PARAM" xlink:href="#button-small" transform="translate(22 -1.3)" />
+ <use id="TRACK_X_LIGHT" xlink:href="#light-small" transform="translate(0 0)" />
+ <text font-size="5pt" letter-spacing="0.5px" transform="translate(7.3 5.5)">TRK</text>
+ </g>
+ <g transform="translate(109 0)">
+ <use id="TRACK_Y_PARAM" xlink:href="#button-small" transform="translate(22 -1.3)" />
+ <use id="TRACK_Y_LIGHT" xlink:href="#light-small" transform="translate(0 0)" />
+ <text font-size="5pt" letter-spacing="0.5px" transform="translate(7.3 5.5)">TRK</text>
+ </g>
+ </g>
+
+ <g transform="translate(7 281)">
+ <rect width="61" height="79" rx="5" fill="#fafafa" />
+ <rect width="22" height="79" rx="5" fill="#bbb" transform="translate(40)" />
+ <rect width="20" height="79" fill="#bbb" transform="translate(31)" />
+ <use id="HOLD_X_INPUT" xlink:href="#input" transform="translate(3.5 3)" />
+ <use id="HOLD_X_OUTPUT" xlink:href="#output" transform="translate(34.5 3)" />
+ <text font-size="6pt" letter-spacing="1.5px" transform="translate(2 36)">GATE</text>
+ <text font-size="6pt" letter-spacing="1.5px" transform="translate(35.5 36)">HOLD</text>
+ <use id="RATE_X_INPUT" xlink:href="#input" transform="translate(3.5 42)" />
+ <use id="OUT_X_OUTPUT" xlink:href="#output" transform="translate(34.5 42)" />
+ <text font-size="6pt" letter-spacing="1.5px" transform="translate(3.5 75)">RATE</text>
+ <text font-size="6pt" letter-spacing="1.5px" transform="translate(37 75)">OUT</text>
+ </g>
+
+ <g transform="translate(142 281)">
+ <rect width="61" height="79" rx="5" fill="#fafafa" />
+ <rect width="22" height="79" rx="5" fill="#bbb" transform="translate(40)" />
+ <rect width="20" height="79" fill="#bbb" transform="translate(31)" />
+ <use id="HOLD_Y_INPUT" xlink:href="#input" transform="translate(3.5 3)" />
+ <use id="HOLD_Y_OUTPUT" xlink:href="#output" transform="translate(34.5 3)" />
+ <text font-size="6pt" letter-spacing="1.5px" transform="translate(2 36)">GATE</text>
+ <text font-size="6pt" letter-spacing="1.5px" transform="translate(35.5 36)">HOLD</text>
+ <use id="RATE_Y_INPUT" xlink:href="#input" transform="translate(3.5 42)" />
+ <use id="OUT_Y_OUTPUT" xlink:href="#output" transform="translate(34.5 42)" />
+ <text font-size="6pt" letter-spacing="1.5px" transform="translate(3.5 75)">RATE</text>
+ <text font-size="6pt" letter-spacing="1.5px" transform="translate(37 75)">OUT</text>
+ </g>
+
+ <g transform="translate(74.5 310)">
+ <rect width="61" height="40" rx="5" fill="#fafafa" />
+ <rect width="22" height="40" rx="5" fill="#bbb" transform="translate(40)" />
+ <rect width="20" height="40" fill="#bbb" transform="translate(31)" />
+ <use id="JUMP_INPUT" xlink:href="#input" transform="translate(3.5 3)" />
+ <use id="DISTANCE_OUTPUT" xlink:href="#output" transform="translate(34.5 3)" />
+ <text font-size="6pt" letter-spacing="1.5px" transform="translate(2 36)">JUMP</text>
+ <text font-size="6pt" letter-spacing="1.5px" transform="translate(35.5 36)">DIST</text>
+ </g>
+</svg>
diff --git a/res/Walk.svg b/res/Walk.svg
Binary files differ.
diff --git a/res/Walk2.svg b/res/Walk2.svg
Binary files differ.
diff --git a/src/Test.cpp b/src/Test.cpp
@@ -409,6 +409,42 @@ void Test::step() {
float in = inputs[IN_INPUT].value;
outputs[OUT_OUTPUT].value = _saturator.next(in);
outputs[OUT2_OUTPUT].value = clamp(in, -Saturator::limit, Saturator::limit);
+
+#elif BROWNIAN
+ const float maxDiv = 1000.0f;
+ float change = clamp(1.0f - params[PARAM1_PARAM].value, 0.01f, 1.0f);
+ float smooth = clamp(params[PARAM2_PARAM].value, 0.01f, 1.0f);
+ smooth *= smooth;
+ _filter1.setParams(engineGetSampleRate(), smooth * engineGetSampleRate() * 0.49f);
+ _filter2.setParams(engineGetSampleRate(), smooth * engineGetSampleRate() * 0.49f);
+
+ _last1 = _last1 + _noise1.next() / (change * maxDiv);
+ outputs[OUT_OUTPUT].value = _filter1.next(_last1);
+ if (_last1 > 5.0f || _last1 < -5.0f) {
+ _last1 = 0.0f;
+ }
+
+ _last2 = _last2 + _noise1.next() / (change * maxDiv);
+ outputs[OUT2_OUTPUT].value = _filter2.next(_last2);
+ if (_last2 > 5.0f || _last2 < -5.0f) {
+ _last2 = 0.0f;
+ }
+
+ // // "leaky integrator"
+ // float alpha = params[PARAM1_PARAM].value;
+ // alpha = clamp(1.0f - alpha*alpha, 0.00001f, 1.0f);
+ // float sample = 5.0f * _noise1.next();
+ // _last1 = alpha*_last1 + (1.0f - alpha)*sample;
+ // outputs[OUT_OUTPUT].value = _last1;
+
+#elif RANDOMWALK
+ float change = params[PARAM1_PARAM].value;
+ change *= change;
+ change *= change;
+ _walk1.setParams(engineGetSampleRate(), change);
+ _walk2.setParams(engineGetSampleRate(), change);
+ outputs[OUT_OUTPUT].value = _walk1.next();
+ outputs[OUT2_OUTPUT].value = _walk2.next();
#endif
}
diff --git a/src/Test.hpp b/src/Test.hpp
@@ -17,7 +17,7 @@ extern Model* modelTest;
// #define OVERSAMPLED_BL 1
// #define ANTIALIASING 1
// #define DECIMATORS 1
-#define INTERPOLATOR 1
+// #define INTERPOLATOR 1
// #define FM 1
// #define PM 1
// #define FEEDBACK_PM 1
@@ -27,6 +27,8 @@ extern Model* modelTest;
// #define RMS 1
// #define RAVG 1
// #define SATURATOR 1
+// #define BROWNIAN 1
+#define RANDOMWALK 1
#include "pitch.hpp"
#ifdef LPF
@@ -86,6 +88,10 @@ extern Model* modelTest;
#elif SATURATOR
#include "dsp/oscillator.hpp"
#include "dsp/signal.hpp"
+#elif BROWNIAN
+#include "dsp/noise.hpp"
+#elif RANDOMWALK
+#include "dsp/noise.hpp"
#else
#error what
#endif
@@ -215,6 +221,16 @@ struct Test : Module {
Trigger _reset;
#elif SATURATOR
Saturator _saturator;
+#elif BROWNIAN
+ WhiteNoiseGenerator _noise1;
+ GaussianNoiseGenerator _noise2;
+ LowPassFilter _filter1;
+ LowPassFilter _filter2;
+ float _last1 = 0.0f;
+ float _last2 = 0.0f;
+#elif RANDOMWALK
+ RandomWalk _walk1;
+ RandomWalk _walk2;
#endif
Test()
diff --git a/src/Walk.cpp b/src/Walk.cpp
@@ -0,0 +1,87 @@
+
+#include "Walk.hpp"
+
+void Walk::onReset() {
+ _trigger.reset();
+ _modulationStep = modulationSteps;
+}
+
+void Walk::onSampleRateChange() {
+ _modulationStep = modulationSteps;
+}
+
+void Walk::step() {
+ lights[TRACK_LIGHT].value = params[TRACK_PARAM].value;
+
+ ++_modulationStep;
+ if (_modulationStep >= modulationSteps) {
+ _modulationStep = 0;
+
+ float rate = params[RATE_PARAM].value;
+ if (inputs[RATE_INPUT].active) {
+ rate *= clamp(inputs[RATE_INPUT].value / 10.0f, 0.0f, 1.0f);
+ }
+ rate *= rate;
+ rate *= rate;
+ _walk.setParams(engineGetSampleRate(), rate);
+ }
+
+ float out = _walk.next();
+ out *= params[SCALE_PARAM].value;
+ out += params[OFFSET_PARAM].value * 5.0f;
+ outputs[OUT_OUTPUT].value = out;
+
+ bool triggered = _trigger.process(inputs[HOLD_INPUT].value);
+ if (params[TRACK_PARAM].value > 0.5f ? _trigger.isHigh() : triggered) {
+ _hold = out;
+ }
+ outputs[HOLD_OUTPUT].value = _hold;
+}
+
+struct WalkWidget : ModuleWidget {
+ static constexpr int hp = 3;
+
+ WalkWidget(Walk* module) : ModuleWidget(module) {
+ box.size = Vec(RACK_GRID_WIDTH * hp, RACK_GRID_HEIGHT);
+
+ {
+ SVGPanel *panel = new SVGPanel();
+ panel->box.size = box.size;
+ panel->setBackground(SVG::load(assetPlugin(plugin, "res/Walk.svg")));
+ addChild(panel);
+ }
+
+ addChild(Widget::create<ScrewSilver>(Vec(0, 0)));
+ addChild(Widget::create<ScrewSilver>(Vec(box.size.x - 15, 365)));
+
+ // generated by svg_widgets.rb
+ auto rateParamPosition = Vec(8.0, 36.0);
+ auto offsetParamPosition = Vec(14.5, 137.0);
+ auto scaleParamPosition = Vec(14.5, 178.0);
+ auto trackParamPosition = Vec(29.0, 246.7);
+
+ auto rateInputPosition = Vec(10.5, 77.0);
+ auto holdInputPosition = Vec(10.5, 210.0);
+
+ auto holdOutputPosition = Vec(10.5, 261.0);
+ auto outOutputPosition = Vec(10.5, 296.0);
+
+ auto trackLightPosition = Vec(7.0, 248.0);
+ // end generated by svg_widgets.rb
+
+ addParam(ParamWidget::create<Knob29>(rateParamPosition, module, Walk::RATE_PARAM, 0.0, 1.0, 0.1));
+ addParam(ParamWidget::create<Knob16>(offsetParamPosition, module, Walk::OFFSET_PARAM, -1.0, 1.0, 0.0));
+ addParam(ParamWidget::create<Knob16>(scaleParamPosition, module, Walk::SCALE_PARAM, 0.0, 1.0, 1.0));
+ addParam(ParamWidget::create<StatefulButton9>(trackParamPosition, module, Walk::TRACK_PARAM, 0.0, 1.0, 0.0));
+
+ addInput(Port::create<Port24>(rateInputPosition, Port::INPUT, module, Walk::RATE_INPUT));
+ addInput(Port::create<Port24>(holdInputPosition, Port::INPUT, module, Walk::HOLD_INPUT));
+
+ addOutput(Port::create<Port24>(holdOutputPosition, Port::OUTPUT, module, Walk::HOLD_OUTPUT));
+ addOutput(Port::create<Port24>(outOutputPosition, Port::OUTPUT, module, Walk::OUT_OUTPUT));
+
+ addChild(ModuleLightWidget::create<SmallLight<GreenLight>>(trackLightPosition, module, Walk::TRACK_LIGHT));
+ }
+};
+
+Model* modelWalk = createModel<Walk, WalkWidget>("Bogaudio-Walk", "Walk", "random-walk CV source", RANDOM_TAG);
diff --git a/src/Walk.hpp b/src/Walk.hpp
@@ -0,0 +1,53 @@
+#pragma once
+
+#include "bogaudio.hpp"
+#include "dsp/noise.hpp"
+
+using namespace bogaudio::dsp;
+
+extern Model* modelWalk;
+
+namespace bogaudio {
+
+struct Walk : Module {
+ enum ParamsIds {
+ RATE_PARAM,
+ OFFSET_PARAM,
+ SCALE_PARAM,
+ TRACK_PARAM,
+ NUM_PARAMS
+ };
+
+ enum InputsIds {
+ RATE_INPUT,
+ HOLD_INPUT,
+ NUM_INPUTS
+ };
+
+ enum OutputsIds {
+ HOLD_OUTPUT,
+ OUT_OUTPUT,
+ NUM_OUTPUTS
+ };
+
+ enum LightsIds {
+ TRACK_LIGHT,
+ NUM_LIGHTS
+ };
+
+ const int modulationSteps = 100;
+ int _modulationStep = 0;
+ Trigger _trigger;
+ RandomWalk _walk;
+ float _hold = 0.0f;
+
+ Walk() : Module(NUM_PARAMS, NUM_INPUTS, NUM_OUTPUTS, NUM_LIGHTS) {
+ onReset();
+ }
+
+ void onReset() override;
+ void onSampleRateChange() override;
+ void step() override;
+};
+
+} // namespace bogaudio
diff --git a/src/Walk2.cpp b/src/Walk2.cpp
@@ -0,0 +1,281 @@
+
+#include "Walk2.hpp"
+
+void Walk2::onReset() {
+ _triggerX.reset();
+ _triggerY.reset();
+ _jumpTrigger.reset();
+ _modulationStep = modulationSteps;
+}
+
+void Walk2::onSampleRateChange() {
+ _modulationStep = modulationSteps;
+ _historySteps = (historySeconds * engineGetSampleRate()) / historyPoints;
+}
+
+void Walk2::step() {
+ lights[TRACK_X_LIGHT].value = params[TRACK_X_PARAM].value;
+ lights[TRACK_Y_LIGHT].value = params[TRACK_Y_PARAM].value;
+
+ ++_modulationStep;
+ if (_modulationStep >= modulationSteps) {
+ _modulationStep = 0;
+
+ float rateX = params[RATE_X_PARAM].value;
+ if (inputs[RATE_X_INPUT].active) {
+ rateX *= clamp(inputs[RATE_X_INPUT].value / 10.0f, 0.0f, 1.0f);
+ }
+ rateX *= rateX;
+ rateX *= rateX;
+ _walkX.setParams(engineGetSampleRate(), rateX);
+
+ float rateY = params[RATE_Y_PARAM].value;
+ if (inputs[RATE_Y_INPUT].active) {
+ rateY *= clamp(inputs[RATE_Y_INPUT].value / 10.0f, 0.0f, 1.0f);
+ }
+ rateY *= rateY;
+ rateY *= rateY;
+ _walkY.setParams(engineGetSampleRate(), rateY);
+ }
+
+ if (_jumpTrigger.process(inputs[JUMP_INPUT].value)) {
+ _walkX.jump();
+ _walkY.jump();
+ }
+
+ float outX = _walkX.next();
+ outX *= params[SCALE_X_PARAM].value;
+ outX += params[OFFSET_X_PARAM].value * 5.0f;
+ outputs[OUT_X_OUTPUT].value = outX;
+
+ bool triggeredX = _triggerX.process(inputs[HOLD_X_INPUT].value);
+ if (params[TRACK_X_PARAM].value > 0.5f ? _triggerX.isHigh() : triggeredX) {
+ _holdX = outX;
+ }
+ outputs[HOLD_X_OUTPUT].value = _holdX;
+
+ float outY = _walkY.next();
+ outY *= params[SCALE_Y_PARAM].value;
+ outY += params[OFFSET_Y_PARAM].value * 5.0f;
+ outputs[OUT_Y_OUTPUT].value = outY;
+
+ bool triggeredY = _triggerY.process(inputs[HOLD_Y_INPUT].value);
+ if (params[TRACK_Y_PARAM].value > 0.5f ? _triggerY.isHigh() : triggeredY) {
+ _holdY = outY;
+ }
+ outputs[HOLD_Y_OUTPUT].value = _holdY;
+
+ outputs[DISTANCE_OUTPUT].value = sqrtf(outX*outX + outY*outY) * 0.707107f; // scaling constant is 10 / squrt(200)
+
+ if (_historyStep == 0) {
+ _outsX.push(outX);
+ _holdsX.push(_holdX);
+ _outsY.push(outY);
+ _holdsY.push(_holdY);
+ }
+ _historyStep = ++_historyStep % _historySteps;
+}
+
+struct Walk2Display : TransparentWidget {
+ const int _insetAround = 4;
+
+ const NVGcolor _axisColor = nvgRGBA(0xff, 0xff, 0xff, 0x70);
+ const NVGcolor _textColor = nvgRGBA(0xff, 0xff, 0xff, 0xc0);
+ const NVGcolor _traceColor = nvgRGBA(0xff, 0x00, 0x00, 0xd0);
+ const NVGcolor _holdColor = nvgRGBA(0x00, 0xff, 0x00, 0xd0);
+
+ Walk2* _module;
+ const Vec _size;
+ const Vec _drawSize;
+ int _midX, _midY;
+ std::shared_ptr<Font> _font;
+
+ Walk2Display(
+ Walk2* module,
+ Vec size
+ )
+ : _module(module)
+ , _size(size)
+ , _drawSize(_size.x - 2*_insetAround, _size.y - 2*_insetAround)
+ , _midX(_size.x / 2)
+ , _midY(_size.y / 2)
+ , _font(Font::load(assetPlugin(plugin, "res/fonts/inconsolata.ttf")))
+ {
+ }
+
+ void draw(NVGcontext* vg) override {
+ drawBackground(vg);
+ float strokeWidth = std::max(1.0f, 3 - gRackScene->zoomWidget->zoom);
+
+ nvgSave(vg);
+ nvgScissor(vg, _insetAround, _insetAround, _size.x - _insetAround, _size.y - _insetAround);
+ drawAxes(vg, strokeWidth);
+ drawTrace(vg, _traceColor, _module->_outsX, _module->_outsY);
+ drawTrace(vg, _holdColor, _module->_holdsX, _module->_holdsY);
+ nvgRestore(vg);
+ }
+
+ void drawBackground(NVGcontext* vg) {
+ nvgSave(vg);
+ nvgBeginPath(vg);
+ nvgRect(vg, 0, 0, _size.x, _size.y);
+ nvgFillColor(vg, nvgRGBA(0x00, 0x00, 0x00, 0xff));
+ nvgFill(vg);
+ nvgStrokeColor(vg, nvgRGBA(0xc0, 0xc0, 0xc0, 0xff));
+ nvgStroke(vg);
+ nvgRestore(vg);
+ }
+
+ void drawAxes(NVGcontext* vg, float strokeWidth) {
+ nvgSave(vg);
+ nvgStrokeColor(vg, _axisColor);
+ nvgStrokeWidth(vg, strokeWidth);
+
+ nvgBeginPath(vg);
+ nvgMoveTo(vg, _insetAround, _midY);
+ nvgLineTo(vg, _size.x - _insetAround, _midY);
+ nvgStroke(vg);
+
+ nvgBeginPath(vg);
+ nvgMoveTo(vg, _midX, _insetAround);
+ nvgLineTo(vg, _midX, _size.y - _insetAround);
+ nvgStroke(vg);
+
+ nvgRestore(vg);
+ }
+
+ void drawTrace(NVGcontext* vg, NVGcolor color, HistoryBuffer<float>& x, HistoryBuffer<float>& y) {
+ nvgSave(vg);
+ nvgGlobalCompositeOperation(vg, NVG_LIGHTER);
+
+ // int n = _module->historyPoints;
+ // float beginRadius = std::max(1.0f, 2.0f - gRackScene->zoomWidget->zoom);
+ // float endRadius = std::max(0.01f, 0.8f - gRackScene->zoomWidget->zoom);
+ // float radiusStep = (beginRadius - endRadius) / (float)n;
+ // float radius = beginRadius;
+ // float alphaStep = (color.a - 0.1f) / (float)n;
+ // for (int i = 0; i < n; ++i) {
+ // nvgBeginPath(vg);
+ // nvgCircle(vg, cvToPixel(_midX, _drawSize.x, x.value(i)), cvToPixel(_midY, _drawSize.y, y.value(i)), radius);
+ // nvgStrokeColor(vg, color);
+ // nvgFillColor(vg, color);
+ // nvgStroke(vg);
+ // nvgFill(vg);
+ // radius -= radiusStep;
+ // color.a -= alphaStep;
+ // }
+
+ int n = _module->historyPoints;
+ float beginWidth = std::max(1.0f, 4.0f - gRackScene->zoomWidget->zoom);
+ float endWidth = std::max(0.5f, 2.0f - gRackScene->zoomWidget->zoom);
+ float widthStep = (beginWidth - endWidth) / (float)n;
+ float width = endWidth;
+ float endAlpha = 0.1f;
+ float alphaStep = (color.a - endAlpha) / (float)n;
+ color.a = endAlpha;
+ for (int i = n - 1; i > 0; --i) {
+ nvgBeginPath(vg);
+ nvgMoveTo(vg, cvToPixel(_midX, _drawSize.x, x.value(i - 1)), cvToPixel(_midY, _drawSize.y, y.value(i - 1)));
+ nvgLineTo(vg, cvToPixel(_midX, _drawSize.x, x.value(i)), cvToPixel(_midY, _drawSize.y, y.value(i)));
+ nvgStrokeWidth(vg, width);
+ nvgStrokeColor(vg, color);
+ nvgStroke(vg);
+ width += widthStep;
+ color.a += alphaStep;
+ }
+ nvgBeginPath(vg);
+ nvgCircle(vg, cvToPixel(_midX, _drawSize.x, x.value(0)), cvToPixel(_midY, _drawSize.y, y.value(0)), 0.5f * width);
+ nvgStrokeColor(vg, color);
+ nvgFillColor(vg, color);
+ nvgStroke(vg);
+ nvgFill(vg);
+
+ nvgRestore(vg);
+ }
+
+ inline float cvToPixel(float mid, float extent, float cv) {
+ return mid + 0.1f * extent * cv;
+ }
+};
+
+struct Walk2Widget : ModuleWidget {
+ static constexpr int hp = 14;
+
+ Walk2Widget(Walk2* module) : ModuleWidget(module) {
+ box.size = Vec(RACK_GRID_WIDTH * hp, RACK_GRID_HEIGHT);
+
+ {
+ SVGPanel *panel = new SVGPanel();
+ panel->box.size = box.size;
+ panel->setBackground(SVG::load(assetPlugin(plugin, "res/Walk2.svg")));
+ addChild(panel);
+ }
+
+ {
+ auto inset = Vec(10, 25);
+ int dim = box.size.x - 2*inset.x;
+ auto size = Vec(dim, dim);
+ auto display = new Walk2Display(module, size);
+ display->box.pos = inset;
+ display->box.size = size;
+ addChild(display);
+ }
+
+ addChild(Widget::create<ScrewSilver>(Vec(15, 0)));
+ addChild(Widget::create<ScrewSilver>(Vec(box.size.x - 30, 0)));
+ addChild(Widget::create<ScrewSilver>(Vec(15, 365)));
+ addChild(Widget::create<ScrewSilver>(Vec(box.size.x - 30, 365)));
+
+ // generated by svg_widgets.rb
+ auto rateXParamPosition = Vec(28.0, 240.0);
+ auto rateYParamPosition = Vec(151.5, 240.0);
+ auto offsetXParamPosition = Vec(75.0, 234.0);
+ auto offsetYParamPosition = Vec(119.0, 234.0);
+ auto scaleXParamPosition = Vec(75.0, 262.5);
+ auto scaleYParamPosition = Vec(119.0, 262.5);
+ auto trackXParamPosition = Vec(94.0, 290.7);
+ auto trackYParamPosition = Vec(131.0, 290.7);
+
+ auto holdXInputPosition = Vec(10.5, 284.0);
+ auto rateXInputPosition = Vec(10.5, 323.0);
+ auto holdYInputPosition = Vec(145.5, 284.0);
+ auto rateYInputPosition = Vec(145.5, 323.0);
+ auto jumpInputPosition = Vec(78.0, 313.0);
+
+ auto holdXOutputPosition = Vec(41.5, 284.0);
+ auto outXOutputPosition = Vec(41.5, 323.0);
+ auto holdYOutputPosition = Vec(176.5, 284.0);
+ auto outYOutputPosition = Vec(176.5, 323.0);
+ auto distanceOutputPosition = Vec(109.0, 313.0);
+
+ auto trackXLightPosition = Vec(72.0, 292.0);
+ auto trackYLightPosition = Vec(109.0, 292.0);
+ // end generated by svg_widgets.rb
+
+ addParam(ParamWidget::create<Knob29>(rateXParamPosition, module, Walk2::RATE_X_PARAM, 0.0, 1.0, 0.1));
+ addParam(ParamWidget::create<Knob29>(rateYParamPosition, module, Walk2::RATE_Y_PARAM, 0.0, 1.0, 0.1));
+ addParam(ParamWidget::create<Knob16>(offsetXParamPosition, module, Walk2::OFFSET_X_PARAM, -1.0, 1.0, 0.0));
+ addParam(ParamWidget::create<Knob16>(offsetYParamPosition, module, Walk2::OFFSET_Y_PARAM, -1.0, 1.0, 0.0));
+ addParam(ParamWidget::create<Knob16>(scaleXParamPosition, module, Walk2::SCALE_X_PARAM, 0.0, 1.0, 1.0));
+ addParam(ParamWidget::create<Knob16>(scaleYParamPosition, module, Walk2::SCALE_Y_PARAM, 0.0, 1.0, 1.0));
+ addParam(ParamWidget::create<StatefulButton9>(trackXParamPosition, module, Walk2::TRACK_X_PARAM, 0.0, 1.0, 0.0));
+ addParam(ParamWidget::create<StatefulButton9>(trackYParamPosition, module, Walk2::TRACK_Y_PARAM, 0.0, 1.0, 0.0));
+
+ addInput(Port::create<Port24>(holdXInputPosition, Port::INPUT, module, Walk2::HOLD_X_INPUT));
+ addInput(Port::create<Port24>(rateXInputPosition, Port::INPUT, module, Walk2::RATE_X_INPUT));
+ addInput(Port::create<Port24>(holdYInputPosition, Port::INPUT, module, Walk2::HOLD_Y_INPUT));
+ addInput(Port::create<Port24>(rateYInputPosition, Port::INPUT, module, Walk2::RATE_Y_INPUT));
+ addInput(Port::create<Port24>(jumpInputPosition, Port::INPUT, module, Walk2::JUMP_INPUT));
+
+ addOutput(Port::create<Port24>(holdXOutputPosition, Port::OUTPUT, module, Walk2::HOLD_X_OUTPUT));
+ addOutput(Port::create<Port24>(outXOutputPosition, Port::OUTPUT, module, Walk2::OUT_X_OUTPUT));
+ addOutput(Port::create<Port24>(holdYOutputPosition, Port::OUTPUT, module, Walk2::HOLD_Y_OUTPUT));
+ addOutput(Port::create<Port24>(outYOutputPosition, Port::OUTPUT, module, Walk2::OUT_Y_OUTPUT));
+ addOutput(Port::create<Port24>(distanceOutputPosition, Port::OUTPUT, module, Walk2::DISTANCE_OUTPUT));
+
+ addChild(ModuleLightWidget::create<SmallLight<GreenLight>>(trackXLightPosition, module, Walk2::TRACK_X_LIGHT));
+ addChild(ModuleLightWidget::create<SmallLight<GreenLight>>(trackYLightPosition, module, Walk2::TRACK_Y_LIGHT));
+ }
+};
+
+Model* modelWalk2 = createModel<Walk2, Walk2Widget>("Bogaudio-Walk2", "Walk2", "");
diff --git a/src/Walk2.hpp b/src/Walk2.hpp
@@ -0,0 +1,80 @@
+#pragma once
+
+#include "bogaudio.hpp"
+#include "dsp/buffer.hpp"
+#include "dsp/noise.hpp"
+
+using namespace bogaudio::dsp;
+
+extern Model* modelWalk2;
+
+namespace bogaudio {
+
+struct Walk2 : Module {
+ enum ParamsIds {
+ RATE_X_PARAM,
+ RATE_Y_PARAM,
+ OFFSET_X_PARAM,
+ OFFSET_Y_PARAM,
+ SCALE_X_PARAM,
+ SCALE_Y_PARAM,
+ TRACK_X_PARAM,
+ TRACK_Y_PARAM,
+ NUM_PARAMS
+ };
+
+ enum InputsIds {
+ HOLD_X_INPUT,
+ RATE_X_INPUT,
+ HOLD_Y_INPUT,
+ RATE_Y_INPUT,
+ JUMP_INPUT,
+ NUM_INPUTS
+ };
+
+ enum OutputsIds {
+ HOLD_X_OUTPUT,
+ OUT_X_OUTPUT,
+ HOLD_Y_OUTPUT,
+ OUT_Y_OUTPUT,
+ DISTANCE_OUTPUT,
+ NUM_OUTPUTS
+ };
+
+ enum LightsIds {
+ TRACK_X_LIGHT,
+ TRACK_Y_LIGHT,
+ NUM_LIGHTS
+ };
+
+ const int modulationSteps = 100;
+ int _modulationStep = 0;
+
+ const float historySeconds = 1.0f;
+ const int historyPoints = 100;
+ int _historySteps;
+ int _historyStep = 0;
+
+ Trigger _triggerX, _triggerY;
+ RandomWalk _walkX, _walkY;
+ Trigger _jumpTrigger;
+ float _holdX = 0.0f, _holdY = 0.0f;
+ HistoryBuffer<float> _outsX, _outsY, _holdsX, _holdsY;
+
+ Walk2()
+ : Module(NUM_PARAMS, NUM_INPUTS, NUM_OUTPUTS, NUM_LIGHTS)
+ , _outsX(historyPoints, 0.0f)
+ , _outsY(historyPoints, 0.0f)
+ , _holdsX(historyPoints, 0.0f)
+ , _holdsY(historyPoints, 0.0f)
+ {
+ onReset();
+ onSampleRateChange();
+ }
+
+ void onReset() override;
+ void onSampleRateChange() override;
+ void step() override;
+};
+
+} // namespace bogaudio
diff --git a/src/bogaudio.cpp b/src/bogaudio.cpp
@@ -50,6 +50,8 @@
#include "VCM.hpp"
#include "VCO.hpp"
#include "VU.hpp"
+#include "Walk.hpp"
+#include "Walk2.hpp"
#include "XCO.hpp"
#include "XFade.hpp"
@@ -86,6 +88,11 @@ void init(rack::Plugin *p) {
p->addModel(modelADSR);
p->addModel(modelFollow);
+#ifdef EXPERIMENTAL
+ p->addModel(modelWalk2);
+ p->addModel(modelWalk);
+#endif
+
p->addModel(modelMix4);
p->addModel(modelMix8);
p->addModel(modelVCM);
diff --git a/src/dsp/buffer.hpp b/src/dsp/buffer.hpp
@@ -134,7 +134,7 @@ struct HistoryBuffer {
HistoryBuffer(int size, T initialValue)
: _size(size)
- , _i(size)
+ , _i(0)
{
assert(size > 0);
_buf = new T[size];
@@ -145,15 +145,12 @@ struct HistoryBuffer {
}
inline void push(T s) {
- ++_i;
- if (_i >= _size) {
- _i = 0;
- }
+ _i = ++_i % _size;
_buf[_i] = s;
}
inline T value(int i) {
- assert(i <= 0 && -i <= _size);
+ assert(i >= 0 && i < _size);
int j = _i - i;
if (j < 0) {
j += _size;
diff --git a/src/dsp/filter.hpp b/src/dsp/filter.hpp
@@ -45,6 +45,11 @@ struct BiquadFilter : Filter {
}
}
+ void reset() {
+ _x[0] = _x[1] = _x[2] = 0.0;
+ _y[0] = _y[1] = _y[2] = 0.0;
+ }
+
float next(float sample) override {
_x[2] = _x[1];
_x[1] = _x[0];
@@ -94,7 +99,8 @@ struct LowPassFilter : Filter {
setParams(sampleRate, cutoff, q);
}
- void setParams(float sampleRate, float cutoff, float q);
+ void setParams(float sampleRate, float cutoff, float q = 0.001f);
+ void reset() { _biquad.reset(); }
float next(float sample) override {
return _biquad.next(sample);
}
diff --git a/src/dsp/noise.cpp b/src/dsp/noise.cpp
@@ -1,4 +1,6 @@
+#include <algorithm>
+
#include "noise.hpp"
using namespace bogaudio::dsp;
@@ -21,3 +23,31 @@ Seeds& Seeds::getInstance() {
unsigned int Seeds::next() {
return getInstance()._next();
};
+
+
+void RandomWalk::setParams(float sampleRate, float change) {
+ assert(sampleRate > 0.0f);
+ assert(change >= 0.0f);
+ assert(change <= 1.0f);
+
+ _filter.setParams(sampleRate, std::max(2.0f, change * 0.49f * sampleRate));
+
+ const float maxDamp = 0.98;
+ const float minDamp = 0.9999;
+ _damp = maxDamp + (1 - change)*(minDamp - maxDamp);
+}
+
+void RandomWalk::jump() {
+ // FIXME
+ _bias = _noise.next() * 5.0f;
+ _filter.reset();
+}
+
+float RandomWalk::_next() {
+ float delta = _noise.next();
+ if ((_lastOut >= _max - _bias && delta > 0.0f) || (_lastOut <= _min - _bias && delta < 0.0f)) {
+ delta = -delta;
+ }
+ _last = _damp*_last + delta;
+ return _lastOut = std::min(std::max(_bias + _filter.next(_last), _min), _max);
+}
diff --git a/src/dsp/noise.hpp b/src/dsp/noise.hpp
@@ -3,6 +3,7 @@
#include <random>
#include "base.hpp"
+#include "filter.hpp"
namespace bogaudio {
namespace dsp {
@@ -78,12 +79,39 @@ struct BlueNoiseGenerator : NoiseGenerator {
struct GaussianNoiseGenerator : NoiseGenerator {
std::normal_distribution<float> _normal;
- GaussianNoiseGenerator() : _normal(0, 1.0) {}
+ GaussianNoiseGenerator(float mean = 0.0f, float stdDev = 1.0f) : _normal(mean, stdDev) {}
float _next() override {
return _normal(_generator);
}
};
+struct RandomWalk : Generator {
+ float _min;
+ float _max;
+ float _last = 0.0f;
+ float _lastOut = 0.0f;
+ float _damp;
+ float _bias = 0.0f;
+ WhiteNoiseGenerator _noise;
+ LowPassFilter _filter;
+
+ RandomWalk(
+ float min = -5.0f,
+ float max = 5.0f,
+ float sampleRate = 1000.0f,
+ float change = 0.5f
+ )
+ : _min(min)
+ , _max(max)
+ {
+ setParams(sampleRate, change);
+ }
+
+ void setParams(float sampleRate = 1000.0f, float change = 0.5f);
+ void jump();
+ float _next() override;
+};
+
} // namespace dsp
} // namespace bogaudio
