Smoother Linear Light Table (#6764)

2 files changed, 44 insertions, 10 deletions

diff --git a/quantum/color.c b/quantum/color.c
index 847129736d..1f398e2403 100644
--- a/quantum/color.c
+++ b/quantum/color.c
@@ -36,7 +36,11 @@ RGB hsv_to_rgb(HSV hsv) {
 
     h = hsv.h;
     s = hsv.s;
+#ifdef USE_CIE1931_CURVE
+    v = pgm_read_byte(&CIE1931_CURVE[hsv.v]);
+#else
     v = hsv.v;
+#endif
 
     region    = h * 6 / 255;
     remainder = (h * 2 - region * 85) * 3;
@@ -79,11 +83,5 @@ RGB hsv_to_rgb(HSV hsv) {
             break;
     }
 
-#ifdef USE_CIE1931_CURVE
-    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]);
-#endif
-
     return rgb;
 }
diff --git a/quantum/led_tables.c b/quantum/led_tables.c
index 8cbf6f4c02..6eb2c09dc8 100644
--- a/quantum/led_tables.c
+++ b/quantum/led_tables.c
@@ -15,14 +15,50 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #include "led_tables.h"
 
+// clang-format off
+
 #ifdef USE_CIE1931_CURVE
 // Lightness curve using the CIE 1931 lightness formula
 // Generated by the python script provided in http://jared.geek.nz/2013/feb/linear-led-pwm
-const uint8_t CIE1931_CURVE[256] PROGMEM = {0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  1,  1,  1,  1,  1,  1,  1,  1,  1,  2,  2,  2,  2,  2,  2,  2,  2,  3,  3,  3,  3,  3,  3,  3,  4,  4,  4,  4,  4,  5,  5,  5,  5,  5,  6,  6,  6,  6,  6,   7,   7,   7,   7,   8,   8,   8,   8,   9,   9,   9,   10,  10,  10,  11,  11,  11,  12,  12,  12,  13,  13,  13,  14,  14,  14,  15,  15,  16,  16,  16,  17,  17,  18,  18,  19,  19,  20,  20,  21,  21,  22,  22,  23,  23,  24,  24,  25,  25,  26,  26,  27,  28,  28,  29,  29,  30,  31,  31,  32,  33,  33,  34,  35,  35,  36,  37,  37,  38,  39,  40,  40,  41,  42,  43,  44,  44,  45,  46,
-                                            47, 48, 49, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 75, 76, 77, 78, 79, 80, 82, 83, 84, 85, 87, 88, 89, 90, 92, 93, 94, 96, 97, 99, 100, 101, 103, 104, 106, 107, 108, 110, 111, 113, 114, 116, 118, 119, 121, 122, 124, 125, 127, 129, 130, 132, 134, 135, 137, 139, 141, 142, 144, 146, 148, 149, 151, 153, 155, 157, 159, 161, 162, 164, 166, 168, 170, 172, 174, 176, 178, 180, 182, 185, 187, 189, 191, 193, 195, 197, 200, 202, 204, 206, 208, 211, 213, 215, 218, 220, 222, 225, 227, 230, 232, 234, 237, 239, 242, 244, 247, 249, 252, 255};
+const uint8_t CIE1931_CURVE[256] PROGMEM = {
+    0,   1,   1,   1,   1,   1,   1,   1,   1,   1,   2,   2,   2,   2,   2,   2,
+    2,   2,   2,   3,   3,   3,   3,   3,   3,   3,   3,   4,   4,   4,   4,   4,
+    4,   4,   5,   5,   5,   5,   5,   6,   6,   6,   6,   6,   7,   7,   7,   7,
+    7,   8,   8,   8,   8,   9,   9,   9,   9,  10,  10,  10,  11,  11,  11,  12,
+   12,  12,  13,  13,  13,  14,  14,  14,  15,  15,  15,  16,  16,  17,  17,  17,
+   18,  18,  19,  19,  20,  20,  21,  21,  22,  22,  23,  23,  24,  24,  25,  25,
+   26,  26,  27,  27,  28,  29,  29,  30,  30,  31,  32,  32,  33,  34,  34,  35,
+   36,  36,  37,  38,  38,  39,  40,  41,  41,  42,  43,  44,  45,  45,  46,  47,
+   48,  49,  50,  50,  51,  52,  53,  54,  55,  56,  57,  58,  59,  60,  61,  62,
+   63,  64,  65,  66,  67,  68,  69,  70,  71,  72,  73,  74,  76,  77,  78,  79,
+   80,  81,  83,  84,  85,  86,  88,  89,  90,  91,  93,  94,  95,  97,  98, 100,
+  101, 102, 104, 105, 107, 108, 109, 111, 112, 114, 115, 117, 119, 120, 122, 123,
+  125, 126, 128, 130, 131, 133, 135, 136, 138, 140, 142, 143, 145, 147, 149, 150,
+  152, 154, 156, 158, 160, 162, 163, 165, 167, 169, 171, 173, 175, 177, 179, 181,
+  183, 186, 188, 190, 192, 194, 196, 198, 201, 203, 205, 207, 209, 212, 214, 216,
+  219, 221, 223, 226, 228, 231, 233, 235, 238, 240, 243, 245, 248, 250, 253, 255
+};
 #endif
 
 #ifdef USE_LED_BREATHING_TABLE
-const uint8_t LED_BREATHING_TABLE[256] PROGMEM = {0,   0,   0,   0,   1,   1,   1,   2,   2,   3,   4,   5,   5,   6,   7,   9,   10,  11,  12,  14,  15,  17,  18,  20,  21,  23,  25,  27,  29,  31,  33,  35,  37,  40,  42,  44,  47,  49,  52,  54,  57,  59,  62,  65,  67,  70,  73,  76,  79,  82,  85,  88,  90,  93,  97,  100, 103, 106, 109, 112, 115, 118, 121, 124, 127, 131, 134, 137, 140, 143, 146, 149, 152, 155, 158, 162, 165, 167, 170, 173, 176, 179, 182, 185, 188, 190, 193, 196, 198, 201, 203, 206, 208, 211, 213, 215, 218, 220, 222, 224, 226, 228, 230, 232, 234, 235, 237, 238, 240, 241, 243, 244, 245, 246, 248, 249, 250, 250, 251, 252, 253, 253, 254, 254, 254, 255, 255, 255,
-                                                  255, 255, 255, 255, 254, 254, 254, 253, 253, 252, 251, 250, 250, 249, 248, 246, 245, 244, 243, 241, 240, 238, 237, 235, 234, 232, 230, 228, 226, 224, 222, 220, 218, 215, 213, 211, 208, 206, 203, 201, 198, 196, 193, 190, 188, 185, 182, 179, 176, 173, 170, 167, 165, 162, 158, 155, 152, 149, 146, 143, 140, 137, 134, 131, 128, 124, 121, 118, 115, 112, 109, 106, 103, 100, 97,  93,  90,  88,  85,  82,  79,  76,  73,  70,  67,  65,  62,  59,  57,  54,  52,  49,  47,  44,  42,  40,  37,  35,  33,  31,  29,  27,  25,  23,  21,  20,  18,  17,  15,  14,  12,  11,  10,  9,   7,   6,   5,   5,   4,   3,   2,   2,   1,   1,   1,   0,   0,   0};
+const uint8_t LED_BREATHING_TABLE[256] PROGMEM = {
+    0,   0,   0,   0,   1,   1,   1,   2,   2,   3,   4,   5,   5,   6,   7,   9,
+   10,  11,  12,  14,  15,  17,  18,  20,  21,  23,  25,  27,  29,  31,  33,  35,
+   37,  40,  42,  44,  47,  49,  52,  54,  57,  59,  62,  65,  67,  70,  73,  76,
+   79,  82,  85,  88,  90,  93,  97, 100, 103, 106, 109, 112, 115, 118, 121, 124,
+  127, 131, 134, 137, 140, 143, 146, 149, 152, 155, 158, 162, 165, 167, 170, 173,
+  176, 179, 182, 185, 188, 190, 193, 196, 198, 201, 203, 206, 208, 211, 213, 215,
+  218, 220, 222, 224, 226, 228, 230, 232, 234, 235, 237, 238, 240, 241, 243, 244,
+  245, 246, 248, 249, 250, 250, 251, 252, 253, 253, 254, 254, 254, 255, 255, 255,
+  255, 255, 255, 255, 254, 254, 254, 253, 253, 252, 251, 250, 250, 249, 248, 246,
+  245, 244, 243, 241, 240, 238, 237, 235, 234, 232, 230, 228, 226, 224, 222, 220,
+  218, 215, 213, 211, 208, 206, 203, 201, 198, 196, 193, 190, 188, 185, 182, 179,
+  176, 173, 170, 167, 165, 162, 158, 155, 152, 149, 146, 143, 140, 137, 134, 131,
+  128, 124, 121, 118, 115, 112, 109, 106, 103, 100,  97,  93,  90,  88,  85,  82,
+   79,  76,  73,  70,  67,  65,  62,  59,  57,  54,  52,  49,  47,  44,  42,  40,
+   37,  35,  33,  31,  29,  27,  25,  23,  21,  20,  18,  17,  15,  14,  12,  11,
+   10,   9,   7,   6,   5,   5,   4,   3,   2,   2,   1,   1,   1,   0,   0,   0
+};
 #endif
+
+// clang-format on