rename dmx.cpp -> dmx_output.cpp

wled00/dmx_output.cpp

@@ -0,0 +1,81 @@
+#include "wled.h"
+
+/*
+ * Support for DMX input and output via serial (e.g. MAX485).
+ * Change the output pin in src/dependencies/ESPDMX.cpp, if needed (ESP8266)
+ * Change the output pin in src/dependencies/SparkFunDMX.cpp, if needed (ESP32)
+ * ESP8266 Library from:
+ * https://github.com/Rickgg/ESP-Dmx
+ * ESP32 Library from:
+ * https://github.com/sparkfun/SparkFunDMX
+ */
+
+#ifdef WLED_ENABLE_DMX_OUTPUT
+
+void handleDMX()
+{
+  // don't act, when in DMX Proxy mode
+  if (e131ProxyUniverse != 0) return;
+
+  uint8_t brightness = strip.getBrightness();
+
+  bool calc_brightness = true;
+
+   // check if no shutter channel is set
+   for (unsigned i = 0; i < DMXChannels; i++)
+   {
+     if (DMXFixtureMap[i] == 5) calc_brightness = false;
+   }
+
+  uint16_t len = strip.getLengthTotal();
+  for (int i = DMXStartLED; i < len; i++) {        // uses the amount of LEDs as fixture count
+
+    uint32_t in = strip.getPixelColor(i);     // get the colors for the individual fixtures as suggested by Aircoookie in issue #462
+    byte w = W(in);
+    byte r = R(in);
+    byte g = G(in);
+    byte b = B(in);
+
+    int DMXFixtureStart = DMXStart + (DMXGap * (i - DMXStartLED));
+    for (int j = 0; j < DMXChannels; j++) {
+      int DMXAddr = DMXFixtureStart + j;
+      switch (DMXFixtureMap[j]) {
+        case 0:        // Set this channel to 0. Good way to tell strobe- and fade-functions to fuck right off.
+          dmx.write(DMXAddr, 0);
+          break;
+        case 1:        // Red
+          dmx.write(DMXAddr, calc_brightness ? (r * brightness) / 255 : r);
+          break;
+        case 2:        // Green
+          dmx.write(DMXAddr, calc_brightness ? (g * brightness) / 255 : g);
+          break;
+        case 3:        // Blue
+          dmx.write(DMXAddr, calc_brightness ? (b * brightness) / 255 : b);
+          break;
+        case 4:        // White
+          dmx.write(DMXAddr, calc_brightness ? (w * brightness) / 255 : w);
+          break;
+        case 5:        // Shutter channel. Controls the brightness.
+          dmx.write(DMXAddr, brightness);
+          break;
+        case 6:        // Sets this channel to 255. Like 0, but more wholesome.
+          dmx.write(DMXAddr, 255);
+          break;
+      }
+    }
+  }
+
+  dmx.update();        // update the DMX bus
+}
+
+void initDMX() {
+ #if defined(ESP8266) || defined(CONFIG_IDF_TARGET_ESP32C3) || defined(CONFIG_IDF_TARGET_ESP32S2)
+  dmx.init(512);        // initialize with bus length
+ #else
+  dmx.initWrite(512);  // initialize with bus length
+ #endif
+}
+#else
+void initDMX(){}
+void handleDMX() {}
+#endif