Add AddressableLEDBuffer

examples/robot/AddressableLED/robot.py

@@ -18,7 +18,7 @@ def __init__(self) -> None:
 
         # Reuse buffer
         # Default to a length of 60
-        self.ledData = [wpilib.AddressableLED.LEDData() for _ in range(60)]
+        self.ledData = wpilib.AddressableLEDBuffer(60)
         self.led.setLength(len(self.ledData))
 
         # Set the data

subprojects/robotpy-wpilib/meson.build

@@ -6,6 +6,7 @@ subdir('semiwrap')
 
 wpilib_sources += files(
     'wpilib/src/main.cpp',
+    'wpilib/src/rpy/AddressableLEDBuffer.cpp',
     'wpilib/src/rpy/Notifier.cpp',
     'wpilib/src/rpy/SmartDashboardData.cpp',
     'wpilib/src/rpy/MotorControllerGroup.cpp',

subprojects/robotpy-wpilib/pyproject.toml

@@ -93,6 +93,8 @@ DYNAMIC_CAMERA_SERVER = 1
 Filesystem = "rpy/Filesystem.h"
 MotorControllerGroup = "rpy/MotorControllerGroup.h"
 Notifier = "rpy/Notifier.h"
+# rpy only
+AddressableLEDBuffer = "rpy/AddressableLEDBuffer.h"
 
 # wpi/counter
 EdgeConfiguration = "wpi/counter/EdgeConfiguration.hpp"

subprojects/robotpy-wpilib/semiwrap/AddressableLEDBuffer.yml

@@ -0,0 +1,57 @@
+classes:
+  wpi::AddressableLEDBuffer:
+    methods:
+      AddressableLEDBuffer:
+      SetRGB:
+      SetHSV:
+      SetLED:
+        overloads:
+          size_t, const wpi::util::Color&:
+          size_t, const wpi::util::Color8Bit&:
+      size:
+        rename: __len__
+      GetRed:
+      GetGreen:
+      GetBlue:
+      GetLED:
+      GetLED8Bit:
+      at:
+        rename: __getitem__
+      begin:
+        ignore: true
+      end:
+        ignore: true
+      CreateView:
+        rename: __getitem__
+        keepalive:
+        - [0, 1]
+    inline_code: |
+      .def("__iter__", [](wpi::AddressableLEDBuffer& self) {
+        return py::make_iterator(self.begin(), self.end());
+      }, py::keep_alive<0, 1>())
+  wpi::AddressableLEDBuffer::View:
+    methods:
+      size:
+        rename: __len__
+      SetRGB:
+      SetHSV:
+      SetLED:
+        overloads:
+          size_t, const wpi::util::Color&:
+          size_t, const wpi::util::Color8Bit&:
+      at:
+        rename: __getitem__
+        overloads:
+          size_t:
+          size_t [const]:
+            ignore: true
+      begin:
+        ignore: true
+      end:
+        ignore: true
+      GetLED:
+      GetLED8Bit:
+    inline_code: |
+      .def("__iter__", [](wpi::AddressableLEDBuffer::View& self) {
+        return py::make_iterator(self.begin(), self.end());
+      }, py::keep_alive<0, 1>())

subprojects/robotpy-wpilib/semiwrap/LEDPattern.yml

@@ -1,3 +1,6 @@
+extra_includes:
+- rpy/AddressableLEDBuffer.h
+
 classes:
   wpi::LEDPattern:
     enums:
@@ -8,8 +11,16 @@ classes:
       ApplyTo:
         overloads:
           std::span<wpi::AddressableLED::LEDData> [const]:
+            cpp_code: |
+              [](const wpi::LEDPattern& self, wpi::AddressableLEDBuffer::View data) {
+                return self.ApplyTo(data);
+              }
           LEDReader, std::function<void (int, wpi::util::Color)> [const]:
           std::span<wpi::AddressableLED::LEDData>, std::function<void (int, wpi::util::Color)> [const]:
+            cpp_code: |
+              [](const wpi::LEDPattern& self, wpi::AddressableLEDBuffer::View data, std::function<void(int, wpi::util::Color)> writer) {
+                return self.ApplyTo(data, writer);
+              }
       Reversed:
       OffsetBy:
       ScrollAtRelativeVelocity:
@@ -38,6 +49,14 @@ classes:
             ignore: true
       Rainbow:
       MapIndex:
+    inline_code: |
+      .def("applyTo", [](const wpi::LEDPattern& self, wpi::AddressableLEDBuffer& data) {
+        self.ApplyTo(static_cast<std::span<wpi::AddressableLED::LEDData>>(data));
+      }, py::arg("data"), release_gil())
+      .def("applyTo", [](const wpi::LEDPattern& self, wpi::AddressableLEDBuffer& data,
+                         std::function<void (int, wpi::util::Color)> writer) {
+        self.ApplyTo(static_cast<std::span<wpi::AddressableLED::LEDData>>(data), std::move(writer));
+      }, py::arg("data"), py::arg("writer").none(false), release_gil())
   wpi::LEDPattern::LEDReader:
     methods:
       LEDReader:

subprojects/robotpy-wpilib/tests/test_addressable_led_buffer.py

@@ -0,0 +1,164 @@
+# Copyright (c) FIRST and other WPILib contributors.
+# Open Source Software; you can modify and/or share it under the terms of
+# the WPILib BSD license file in the root directory of this project.
+
+import pytest
+
+from wpilib import AddressableLEDBuffer
+from wpiutil import Color, Color8Bit
+
+AddressableLEDBufferView = AddressableLEDBuffer.View
+
+
+class TestAddressableLEDBuffer:
+    """Tests for AddressableLEDBuffer"""
+
+    @pytest.mark.parametrize(
+        "h,s,v,r,g,b",
+        [
+            (0, 0, 0, 0, 0, 0),  # Black
+            (0, 0, 255, 255, 255, 255),  # White
+            (0, 255, 255, 255, 0, 0),  # Red
+            (60, 255, 255, 0, 255, 0),  # Lime
+            (120, 255, 255, 0, 0, 255),  # Blue
+            (30, 255, 255, 255, 255, 0),  # Yellow
+            (90, 255, 255, 0, 255, 255),  # Cyan
+            (150, 255, 255, 255, 0, 255),  # Magenta
+            (0, 0, 191, 191, 191, 191),  # Silver
+            (0, 0, 128, 128, 128, 128),  # Gray
+            (0, 255, 128, 128, 0, 0),  # Maroon
+            (30, 255, 128, 128, 128, 0),  # Olive
+            (60, 255, 128, 0, 128, 0),  # Green
+            (150, 255, 128, 128, 0, 128),  # Purple
+            (90, 255, 128, 0, 128, 128),  # Teal
+            (120, 255, 128, 0, 0, 128),  # Navy
+        ],
+    )
+    def test_hsv_convert(self, h, s, v, r, g, b):
+        """Test HSV to RGB conversion"""
+        buffer = AddressableLEDBuffer(length=1)
+        buffer.setHSV(0, h, s, v)
+        color = buffer.getLED8Bit(0)
+        assert color.red == r, "R value didn't match"
+        assert color.green == g, "G value didn't match"
+        assert color.blue == b, "B value didn't match"
+
+    def test_get_color(self):
+        """Test getting colors from buffer"""
+        buffer = AddressableLEDBuffer(4)
+        denim_color_8bit = Color8Bit(Color.DENIM)
+        first_blue_color_8bit = Color8Bit(Color.FIRST_BLUE)
+        first_red_color_8bit = Color8Bit(Color.FIRST_RED)
+
+        buffer.setLED(0, Color.FIRST_BLUE)
+        buffer.setLED(1, denim_color_8bit)
+        buffer.setLED(2, Color.FIRST_RED)
+        buffer.setLED(3, Color.FIRST_BLUE)
+
+        assert buffer.getLED(0) == Color.FIRST_BLUE
+        assert buffer.getLED(1) == Color.DENIM
+        assert buffer.getLED(2) == Color.FIRST_RED
+        assert buffer.getLED(3) == Color.FIRST_BLUE
+        assert buffer.getLED8Bit(0) == first_blue_color_8bit
+        assert buffer.getLED8Bit(1) == denim_color_8bit
+        assert buffer.getLED8Bit(2) == first_red_color_8bit
+        assert buffer.getLED8Bit(3) == first_blue_color_8bit
+
+    def test_get_red(self):
+        """Test getting red component"""
+        buffer = AddressableLEDBuffer(1)
+        buffer.setRGB(0, 127, 128, 129)
+        assert buffer.getRed(0) == 127
+
+    def test_get_green(self):
+        """Test getting green component"""
+        buffer = AddressableLEDBuffer(1)
+        buffer.setRGB(0, 127, 128, 129)
+        assert buffer.getGreen(0) == 128
+
+    def test_get_blue(self):
+        """Test getting blue component"""
+        buffer = AddressableLEDBuffer(1)
+        buffer.setRGB(0, 127, 128, 129)
+        assert buffer.getBlue(0) == 129
+
+    def test_iteration(self):
+        buffer = AddressableLEDBuffer(3)
+        buffer.setRGB(0, 1, 2, 3)
+        buffer.setRGB(1, 4, 5, 6)
+        buffer.setRGB(2, 7, 8, 9)
+
+        results = []
+
+        for led in buffer:
+            results.append((led.r, led.g, led.b))
+
+        assert len(results) == 3
+        assert results[0] == (1, 2, 3)
+        assert results[1] == (4, 5, 6)
+        assert results[2] == (7, 8, 9)
+
+    def test_iteration_on_empty_buffer(self):
+        buffer = AddressableLEDBuffer(0)
+
+        for led in buffer:
+            assert False, "Iterator should not return items on an empty buffer"
+
+
+class TestAddressableLEDBufferView:
+    """Tests for AddressableLEDBufferView"""
+
+    def test_single_led(self):
+        """Test setting a single LED through a view"""
+        buffer = AddressableLEDBuffer(10)
+        view = buffer[5:6]
+        color = Color.AQUA
+        view.setLED(0, color)
+        assert buffer.getLED(5) == color
+        assert view.getLED(0) == color
+
+    def test_segment(self):
+        """Test segment view"""
+        buffer = AddressableLEDBuffer(10)
+        view = buffer[2:9]
+        view.setLED(0, Color.AQUA)
+        assert buffer.getLED(2) == Color.AQUA
+
+        view.setLED(6, Color.AZURE)
+        assert buffer.getLED(8) == Color.AZURE
+
+    @pytest.mark.skip("reversed views are not implemented")
+    def test_manual_reversed(self):
+        """Test manually reversed view"""
+        buffer = AddressableLEDBuffer(10)
+        view = buffer[8:1:-1]
+
+        # LED 0 in the view should write to LED 8 on the real buffer
+        view.setLED(0, Color.AQUA)
+        assert buffer.getLED(8) == Color.AQUA
+
+        # LED 6 in the view should write to LED 2 on the real buffer
+        view.setLED(6, Color.AZURE)
+        assert buffer.getLED(2) == Color.AZURE
+
+    @pytest.mark.skip("reversed views are not implemented")
+    def test_full_manual_reversed(self):
+        """Test full manual reversed view"""
+        buffer = AddressableLEDBuffer(10)
+        view = buffer[9::-1]
+        view.setLED(0, Color.WHITE)
+        assert buffer.getLED(9) == Color.WHITE
+
+        buffer.setLED(8, Color.RED)
+        assert view.getLED(1) == Color.RED
+
+    @pytest.mark.skip("reversed views are not implemented")
+    def test_reversed(self):
+        """Test reversed view"""
+        buffer = AddressableLEDBuffer(10)
+        view = buffer[:].reversed()
+        view.setLED(0, Color.WHITE)
+        assert buffer.getLED(9) == Color.WHITE
+
+        view.setLED(9, Color.RED)
+        assert buffer.getLED(0) == Color.RED