From 14b7602a65dedaf51db1c9288144765d43a83a15 Mon Sep 17 00:00:00 2001
From: Jack Humbert <jack.humb@gmail.com>
Date: Tue, 8 May 2018 15:24:18 -0400
Subject: Adds IS31FL3731 RGB Matrix Implementation (#2910)

* adds is31fl3731 rgb matrix implementation

* fix build script for force pushes

* allow bootloader size to be overwritten

* adds planck light implementation

* split led config into 2 arrays

* idk

* betterize register handling

* update planck implementation

* update planck

* refine rgb interface

* cleanup names, rgb matrix

* start documentation

* finish up docs

* add effects list

* clean-up merge

* add RGB_MATRIX_SKIP_FRAMES

* add support for at90usb1286 to bootloader options
---
 quantum/color.c | 87 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 quantum/color.c

(limited to 'quantum/color.c')

diff --git a/quantum/color.c b/quantum/color.c
new file mode 100644
index 0000000000..8ede053e71
--- /dev/null
+++ b/quantum/color.c
@@ -0,0 +1,87 @@
+/* Copyright 2017 Jason Williams
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include "color.h"
+#include "led_tables.h"
+#include "progmem.h"
+
+RGB hsv_to_rgb( HSV hsv )
+{
+	RGB rgb;
+	uint8_t region, p, q, t;
+	uint16_t h, s, v, remainder;
+
+	if ( hsv.s == 0 )
+	{
+		rgb.r = hsv.v;
+		rgb.g = hsv.v;
+		rgb.b = hsv.v;
+		return rgb;
+	}
+
+	h = hsv.h;
+	s = hsv.s;
+	v = hsv.v;
+
+	region = h / 43;
+	remainder = (h - (region * 43)) * 6;
+
+	p = (v * (255 - s)) >> 8;
+	q = (v * (255 - ((s * remainder) >> 8))) >> 8;
+	t = (v * (255 - ((s * (255 - remainder)) >> 8))) >> 8;
+
+	switch ( region )
+	{
+		case 0:
+			rgb.r = v;
+			rgb.g = t;
+			rgb.b = p;
+			break;
+		case 1:
+			rgb.r = q;
+			rgb.g = v;
+			rgb.b = p;
+			break;
+		case 2:
+			rgb.r = p;
+			rgb.g = v;
+			rgb.b = t;
+			break;
+		case 3:
+			rgb.r = p;
+			rgb.g = q;
+			rgb.b = v;
+			break;
+		case 4:
+			rgb.r = t;
+			rgb.g = p;
+			rgb.b = v;
+			break;
+		default:
+			rgb.r = v;
+			rgb.g = p;
+			rgb.b = q;
+			break;
+	}
+
+	rgb.r = pgm_read_byte( &CIE1931_CURVE[rgb.r] );
+	rgb.g = pgm_read_byte( &CIE1931_CURVE[rgb.g] );
+	rgb.b = pgm_read_byte( &CIE1931_CURVE[rgb.b] );
+
+	return rgb;
+}
+
-- 
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