summaryrefslogtreecommitdiffstats
path: root/quantum/visualizer/lcd_backlight.c
diff options
context:
space:
mode:
Diffstat (limited to 'quantum/visualizer/lcd_backlight.c')
-rw-r--r--quantum/visualizer/lcd_backlight.c87
1 files changed, 0 insertions, 87 deletions
diff --git a/quantum/visualizer/lcd_backlight.c b/quantum/visualizer/lcd_backlight.c
deleted file mode 100644
index 23978974e3..0000000000
--- a/quantum/visualizer/lcd_backlight.c
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
-The MIT License (MIT)
-
-Copyright (c) 2016 Fred Sundvik
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
-*/
-
-#include "lcd_backlight.h"
-#include <math.h>
-
-static uint8_t current_hue = 0;
-static uint8_t current_saturation = 0;
-static uint8_t current_intensity = 0;
-static uint8_t current_brightness = 0;
-
-void lcd_backlight_init(void) {
- lcd_backlight_hal_init();
- lcd_backlight_color(current_hue, current_saturation, current_intensity);
-}
-
-// This code is based on Brian Neltner's blogpost and example code
-// "Why every LED light should be using HSI colorspace".
-// http://blog.saikoled.com/post/43693602826/why-every-led-light-should-be-using-hsi
-static void hsi_to_rgb(float h, float s, float i, uint16_t* r_out, uint16_t* g_out, uint16_t* b_out) {
- unsigned int r, g, b;
- h = fmodf(h, 360.0f); // cycle h around to 0-360 degrees
- h = 3.14159f * h / 180.0f; // Convert to radians.
- s = s > 0.0f ? (s < 1.0f ? s : 1.0f) : 0.0f; // clamp s and i to interval [0,1]
- i = i > 0.0f ? (i < 1.0f ? i : 1.0f) : 0.0f;
-
- // Math! Thanks in part to Kyle Miller.
- if (h < 2.09439f) {
- r = 65535.0f * i / 3.0f * (1.0f + s * cos(h) / cosf(1.047196667f - h));
- g = 65535.0f * i / 3.0f * (1.0f + s * (1.0f - cosf(h) / cos(1.047196667f - h)));
- b = 65535.0f * i / 3.0f * (1.0f - s);
- } else if (h < 4.188787) {
- h = h - 2.09439;
- g = 65535.0f * i / 3.0f * (1.0f + s * cosf(h) / cosf(1.047196667f - h));
- b = 65535.0f * i / 3.0f * (1.0f + s * (1.0f - cosf(h) / cosf(1.047196667f - h)));
- r = 65535.0f * i / 3.0f * (1.0f - s);
- } else {
- h = h - 4.188787;
- b = 65535.0f * i / 3.0f * (1.0f + s * cosf(h) / cosf(1.047196667f - h));
- r = 65535.0f * i / 3.0f * (1.0f + s * (1.0f - cosf(h) / cosf(1.047196667f - h)));
- g = 65535.0f * i / 3.0f * (1.0f - s);
- }
- *r_out = r > 65535 ? 65535 : r;
- *g_out = g > 65535 ? 65535 : g;
- *b_out = b > 65535 ? 65535 : b;
-}
-
-void lcd_backlight_color(uint8_t hue, uint8_t saturation, uint8_t intensity) {
- uint16_t r, g, b;
- float hue_f = 360.0f * (float)hue / 255.0f;
- float saturation_f = (float)saturation / 255.0f;
- float intensity_f = (float)intensity / 255.0f;
- intensity_f *= (float)current_brightness / 255.0f;
- hsi_to_rgb(hue_f, saturation_f, intensity_f, &r, &g, &b);
- current_hue = hue;
- current_saturation = saturation;
- current_intensity = intensity;
- lcd_backlight_hal_color(r, g, b);
-}
-
-void lcd_backlight_brightness(uint8_t b) {
- current_brightness = b;
- lcd_backlight_color(current_hue, current_saturation, current_intensity);
-}
-
-uint8_t lcd_get_backlight_brightness(void) { return current_brightness; }