Rename stuff to pixels instead of leds

demos/applications/apa102.cpp

@@ -18,7 +18,7 @@
 
 #include "../resource_list.hpp"
 
-hal::byte build_brightness_byte(int p_brightness)
+hal::byte build_brightness_byte(unsigned p_brightness)
 {
   hal::byte starting_bits = 0b11100000;
   if (p_brightness > 31) {
@@ -34,11 +34,11 @@ void update_single(hal::display::apa102_pixel& p_rgb,
                    hal::display::apa102_frame<PixelCount>& p_led_frames)
 {
   if (p_led_number < PixelCount) {
-    p_led_frames.data[p_led_number].brightness =
+    p_led_frames.pixels[p_led_number].brightness =
       build_brightness_byte(p_brightness);
-    p_led_frames.data[p_led_number].blue = p_rgb.blue;
-    p_led_frames.data[p_led_number].green = p_rgb.green;
-    p_led_frames.data[p_led_number].red = p_rgb.red;
+    p_led_frames.pixels[p_led_number].blue = p_rgb.blue;
+    p_led_frames.pixels[p_led_number].green = p_rgb.green;
+    p_led_frames.pixels[p_led_number].red = p_rgb.red;
   }
 }
 

include/libhal-display/apa102.hpp

@@ -38,12 +38,12 @@ static_assert(4U == sizeof(apa102_pixel),
  * @brief Contains data to send over SPI and information about size of the data
  * to send over
  *
- * @tparam LedCount - Number of LEDs to control
+ * @tparam pixel_count - Number of pixels to control
  */
-template<std::size_t led_count>
+template<std::size_t pixel_count>
 struct apa102_frame
 {
-  std::array<apa102_pixel, led_count> data;
+  std::array<apa102_pixel, pixel_count> pixels;
 };
 
 /**
@@ -66,14 +66,14 @@ class apa102
   /**
    * @brief Update the state of the LEDs
    *
-   * @tparam LedCount - Number of LEDs to control is set implicitly, user should
-   * not set it manually
+   * @tparam pixel_count - Number of pixels to control is set implicitly, user
+   * should not set it manually
    * @param p_spi_frame spi frame to send to control LEDs
    */
-  template<std::size_t LedCount>
-  void update(apa102_frame<LedCount>& p_spi_frame)
+  template<std::size_t pixel_count>
+  void update(apa102_frame<pixel_count>& p_spi_frame)
   {
-    update(p_spi_frame.data);
+    update(p_spi_frame.pixels);
   }
 
 private:

src/apa102.cpp

@@ -15,11 +15,11 @@ apa102::apa102(hal::spi& p_spi, hal::output_pin& p_chip_select)
 }
 
 // public
-void apa102::update(std::span<apa102_pixel> p_data)
+void apa102::update(std::span<apa102_pixel> p_pixels)
 {
   m_chip_select->level(false);
   hal::write(*m_spi, std::array<hal::byte, 4>{ 0x00, 0x00, 0x00, 0x00 });
-  hal::write(*m_spi, hal::as_bytes(p_data));
+  hal::write(*m_spi, hal::as_bytes(p_pixels));
   hal::write(*m_spi, std::array<hal::byte, 4>{ 0xFF, 0xFF, 0xFF, 0xFF });
   m_chip_select->level(true);
 }