From 61759b13c9cac9af9e5b8a9c94942d38de716d62 Mon Sep 17 00:00:00 2001
From: Varkonyi Kornel <varkokonyi@gmail.com>
Date: Thu, 7 Sep 2023 19:27:28 +0200
Subject: [PATCH] Added option to use raw dmx values

---
 readme.md     |  4 ++--
 src/packet.ts | 18 +++++++++++++++++-
 src/sender.ts |  5 ++++-
 3 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/readme.md b/readme.md
index 3cd0c12..5e6b9e0 100644
--- a/readme.md
+++ b/readme.md
@@ -100,7 +100,7 @@ const sACNServer = new Sender({
 
 async function main() {
   await sACNServer.send({
-    payload: { // required. object with the percentages for each DMX channel
+    payload: { // required. object with the percentages for each DMX channel (or set `useRawDmxValues` per packet or in the `defaultPacketOptions` for the Sender to use raw DMX values)
       1: 100,
       2: 50,
       3: 0,
@@ -123,7 +123,7 @@ main(); // wrapped in a main() function so that we can `await` the promise
 | `universe`             | `number`  | Required. The universes to listen to. Must be within 1-63999                                               | `[]`    |
 | `port`                 | `number`  | Optional. The multicast port to use. All professional consoles broadcast to the default port.              | `5568`  |
 | `reuseAddr`            | `boolean` | Optional. Allow multiple programs on your computer to send to the same sACN universe.                      |
-| `defaultPacketOptions` | `object`  | Optional. You can specify options like `sourceName`, `cid`, and `priority` here instead of on every packet |
+| `defaultPacketOptions` | `object`  | Optional. You can specify options like `sourceName`, `cid`, `priority` and `useRawDmxValues` here instead of on every packet |
 | `iface`                | `string`  | Optional. Specifies the IPv4 address of the network interface/card to use.                                 | OS default interface (=active internet connection)
 | `useUnicastDestination`| `string`  | Optional. Setting this attribute to an IPv4 address will cause data to be sent directly to that device, instead of broadcasting to the whole LAN. |
 
diff --git a/src/packet.ts b/src/packet.ts
index b95d745..147bc3e 100644
--- a/src/packet.ts
+++ b/src/packet.ts
@@ -19,6 +19,12 @@ export interface Options {
   sourceName?: Packet['sourceName'];
   priority?: Packet['priority'];
   cid?: Packet['cid'];
+  /**
+   * Whether to use 0-100 or 0-255 scale when creating the packet
+   * false (default): 0-100
+   * true: 0-255
+   */
+  useRawDmxValues?: Packet['useRawDmxValues'];
 }
 
 /**
@@ -58,6 +64,8 @@ export class Packet {
 
   /* eslint-enable lines-between-class-members */
 
+  private readonly useRawDmxValues: boolean = false;
+
   public constructor(
     input: Buffer | Options,
     public readonly sourceAddress?: string,
@@ -121,6 +129,10 @@ export class Packet {
       this.propertyValueCount = 0x0201; // "Indicates 1+ the number of slots in packet"
       // We set the highest possible value (1+512) so that channels with zero values are
       // treated as deliberately 0 (cf. undefined)
+
+      if (options.useRawDmxValues) {
+        this.useRawDmxValues = true;
+      }
     }
   }
 
@@ -168,7 +180,11 @@ export class Packet {
 
     for (const ch in this.payload) {
       if (+ch >= 1 && +ch <= 512) {
-        n[125 + +ch] = inRange(this.payload[ch]! * 2.55);
+        if (this.useRawDmxValues) {
+          n[125 + +ch] = inRange(this.payload[ch]!);
+        } else {
+          n[125 + +ch] = inRange(this.payload[ch]! * 2.55);
+        }
       }
     }
 
diff --git a/src/sender.ts b/src/sender.ts
index 5136344..d9a652f 100644
--- a/src/sender.ts
+++ b/src/sender.ts
@@ -16,7 +16,10 @@ export interface SenderProps {
   minRefreshRate?: number;
 
   /** some options can be sepecified when you instantiate the sender, instead of sepecifying them on every packet */
-  defaultPacketOptions?: Pick<Options, 'cid' | 'sourceName' | 'priority'>;
+  defaultPacketOptions?: Pick<
+    Options,
+    'cid' | 'sourceName' | 'priority' | 'useRawDmxValues'
+  >;
 
   // IPv4 address of the network interface
   iface?: string;