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authorGravatar Takeshi ISHII <2170248+mtei@users.noreply.github.com>2019-05-02 23:59:29 +0900
committerGravatar MechMerlin <30334081+mechmerlin@users.noreply.github.com>2019-05-02 07:59:29 -0700
commit3da8d46a07167fc862e90b6bb232812d5cb64651 (patch)
tree5af2e45ad1349b21afb075441a5032897e3b812d
parent4db31fb374d365bfa0f5c8a25d089bb2f967352f (diff)
downloadqmk_firmware-3da8d46a07167fc862e90b6bb232812d5cb64651.tar.gz
If RGBLIGHT_EFFECT_BREATHE_CENTER is undefined, use fixed breathe table instead of exp() and sin() (#5484)
* If RGBLIGHT_EFFECT_BREATHE_CENTER is undefined, use fixed breathe table instead of exp() and sin() * Change rgblight breathing table size to be easily selectable. add RGBLIGHT_BREATHE_TABLE_SIZE macro for customize breathing effect.
-rw-r--r--docs/feature_rgblight.md2
-rw-r--r--quantum/rgblight.c12
-rw-r--r--quantum/rgblight.h4
-rw-r--r--quantum/rgblight_breathe_table.h116
-rw-r--r--quantum/template/avr/config.h6
-rw-r--r--util/rgblight_breathing_table_calc.c49
6 files changed, 185 insertions, 4 deletions
diff --git a/docs/feature_rgblight.md b/docs/feature_rgblight.md
index 8b0a45cb6..4572f45b2 100644
--- a/docs/feature_rgblight.md
+++ b/docs/feature_rgblight.md
@@ -114,7 +114,7 @@ The following options can be used to tweak the various animations:
|`RGBLIGHT_EFFECT_RGB_TEST` |*Not defined*|If defined, enable RGB test animation mode. |
|`RGBLIGHT_EFFECT_ALTERNATING` |*Not defined*|If defined, enable alternating animation mode. |
|`RGBLIGHT_ANIMATIONS` |*Not defined*|If defined, enables all additional animation modes |
-|`RGBLIGHT_EFFECT_BREATHE_CENTER` |`1.85` |Used to calculate the curve for the breathing animation. Valid values are 1.0 to 2.7 |
+|`RGBLIGHT_EFFECT_BREATHE_CENTER` |*Not defined*|If defined, used to calculate the curve for the breathing animation. Valid values are 1.0 to 2.7 |
|`RGBLIGHT_EFFECT_BREATHE_MAX` |`255` |The maximum brightness for the breathing mode. Valid values are 1 to 255 |
|`RGBLIGHT_EFFECT_SNAKE_LENGTH` |`4` |The number of LEDs to light up for the "Snake" animation |
|`RGBLIGHT_EFFECT_KNIGHT_LENGTH` |`3` |The number of LEDs to light up for the "Knight" animation |
diff --git a/quantum/rgblight.c b/quantum/rgblight.c
index 98755ff08..77772e292 100644
--- a/quantum/rgblight.c
+++ b/quantum/rgblight.c
@@ -879,6 +879,14 @@ void rgblight_task(void) {
// Effects
#ifdef RGBLIGHT_EFFECT_BREATHING
+
+#ifndef RGBLIGHT_EFFECT_BREATHE_CENTER
+ #ifndef RGBLIGHT_BREATHE_TABLE_SIZE
+ #define RGBLIGHT_BREATHE_TABLE_SIZE 256 // 256 or 128 or 64
+ #endif
+ #include <rgblight_breathe_table.h>
+#endif
+
__attribute__ ((weak))
const uint8_t RGBLED_BREATHING_INTERVALS[] PROGMEM = {30, 20, 10, 5};
@@ -886,7 +894,11 @@ void rgblight_effect_breathing(animation_status_t *anim) {
float val;
// http://sean.voisen.org/blog/2011/10/breathing-led-with-arduino/
+#ifdef RGBLIGHT_EFFECT_BREATHE_TABLE
+ val = pgm_read_byte(&rgblight_effect_breathe_table[anim->pos / table_scale]);
+#else
val = (exp(sin((anim->pos/255.0)*M_PI)) - RGBLIGHT_EFFECT_BREATHE_CENTER/M_E)*(RGBLIGHT_EFFECT_BREATHE_MAX/(M_E-1/M_E));
+#endif
rgblight_sethsv_noeeprom_old(rgblight_config.hue, rgblight_config.sat, val);
anim->pos = (anim->pos + 1);
}
diff --git a/quantum/rgblight.h b/quantum/rgblight.h
index 9ccb3135c..35d7942ca 100644
--- a/quantum/rgblight.h
+++ b/quantum/rgblight.h
@@ -80,9 +80,7 @@ enum RGBLIGHT_EFFECT_MODE {
#define RGBLIGHT_MODES (RGBLIGHT_MODE_last-1)
-#ifndef RGBLIGHT_EFFECT_BREATHE_CENTER
-#define RGBLIGHT_EFFECT_BREATHE_CENTER 1.85 // 1-2.7
-#endif
+// sample: #define RGBLIGHT_EFFECT_BREATHE_CENTER 1.85
#ifndef RGBLIGHT_EFFECT_BREATHE_MAX
#define RGBLIGHT_EFFECT_BREATHE_MAX 255 // 0-255
diff --git a/quantum/rgblight_breathe_table.h b/quantum/rgblight_breathe_table.h
new file mode 100644
index 000000000..7ab8cc947
--- /dev/null
+++ b/quantum/rgblight_breathe_table.h
@@ -0,0 +1,116 @@
+#ifndef RGBLIGHT_EFFECT_BREATHE_TABLE
+#define RGBLIGHT_EFFECT_BREATHE_TABLE
+
+const uint8_t rgblight_effect_breathe_table[] PROGMEM = {
+ /* #define RGBLIGHT_EFFECT_BREATHE_CENTER 1.85 */
+ /* #define RGBLIGHT_EFFECT_BREATHE_MAX 255 */
+
+ #if RGBLIGHT_BREATHE_TABLE_SIZE == 256
+ 0x22, 0x23, 0x25, 0x26, 0x28, 0x29, 0x2a, 0x2c,
+ 0x2d, 0x2f, 0x30, 0x32, 0x33, 0x35, 0x36, 0x38,
+ 0x3a, 0x3b, 0x3d, 0x3e, 0x40, 0x42, 0x43, 0x45,
+ 0x47, 0x49, 0x4a, 0x4c, 0x4e, 0x50, 0x51, 0x53,
+ 0x55, 0x57, 0x59, 0x5a, 0x5c, 0x5e, 0x60, 0x62,
+ 0x64, 0x66, 0x68, 0x69, 0x6b, 0x6d, 0x6f, 0x71,
+ 0x73, 0x75, 0x77, 0x79, 0x7b, 0x7d, 0x7f, 0x81,
+ 0x83, 0x85, 0x87, 0x89, 0x8a, 0x8c, 0x8e, 0x90,
+ 0x92, 0x94, 0x96, 0x98, 0x9a, 0x9c, 0x9e, 0x9f,
+ 0xa1, 0xa3, 0xa5, 0xa7, 0xa8, 0xaa, 0xac, 0xae,
+ 0xaf, 0xb1, 0xb3, 0xb4, 0xb6, 0xb8, 0xb9, 0xbb,
+ 0xbc, 0xbe, 0xbf, 0xc1, 0xc2, 0xc3, 0xc5, 0xc6,
+ 0xc7, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xd0,
+ 0xd1, 0xd2, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7,
+ 0xd7, 0xd8, 0xd9, 0xd9, 0xda, 0xda, 0xdb, 0xdb,
+ 0xdb, 0xdc, 0xdc, 0xdc, 0xdc, 0xdc, 0xdd, 0xdd,
+ 0xdd, 0xdd, 0xdc, 0xdc, 0xdc, 0xdc, 0xdc, 0xdb,
+ 0xdb, 0xdb, 0xda, 0xda, 0xd9, 0xd9, 0xd8, 0xd7,
+ 0xd7, 0xd6, 0xd5, 0xd4, 0xd3, 0xd2, 0xd2, 0xd1,
+ 0xd0, 0xce, 0xcd, 0xcc, 0xcb, 0xca, 0xc9, 0xc7,
+ 0xc6, 0xc5, 0xc3, 0xc2, 0xc1, 0xbf, 0xbe, 0xbc,
+ 0xbb, 0xb9, 0xb8, 0xb6, 0xb4, 0xb3, 0xb1, 0xaf,
+ 0xae, 0xac, 0xaa, 0xa8, 0xa7, 0xa5, 0xa3, 0xa1,
+ 0x9f, 0x9e, 0x9c, 0x9a, 0x98, 0x96, 0x94, 0x92,
+ 0x90, 0x8e, 0x8c, 0x8a, 0x89, 0x87, 0x85, 0x83,
+ 0x81, 0x7f, 0x7d, 0x7b, 0x79, 0x77, 0x75, 0x73,
+ 0x71, 0x6f, 0x6d, 0x6b, 0x69, 0x68, 0x66, 0x64,
+ 0x62, 0x60, 0x5e, 0x5c, 0x5a, 0x59, 0x57, 0x55,
+ 0x53, 0x51, 0x50, 0x4e, 0x4c, 0x4a, 0x49, 0x47,
+ 0x45, 0x43, 0x42, 0x40, 0x3e, 0x3d, 0x3b, 0x3a,
+ 0x38, 0x36, 0x35, 0x33, 0x32, 0x30, 0x2f, 0x2d,
+ 0x2c, 0x2a, 0x29, 0x28, 0x26, 0x25, 0x23, 0x22
+ #endif /* 256 bytes table */
+
+ #if RGBLIGHT_BREATHE_TABLE_SIZE == 128
+ 0x22, 0x25, 0x28, 0x2a,
+ 0x2d, 0x30, 0x33, 0x36,
+ 0x3a, 0x3d, 0x40, 0x43,
+ 0x47, 0x4a, 0x4e, 0x51,
+ 0x55, 0x59, 0x5c, 0x60,
+ 0x64, 0x68, 0x6b, 0x6f,
+ 0x73, 0x77, 0x7b, 0x7f,
+ 0x83, 0x87, 0x8a, 0x8e,
+ 0x92, 0x96, 0x9a, 0x9e,
+ 0xa1, 0xa5, 0xa8, 0xac,
+ 0xaf, 0xb3, 0xb6, 0xb9,
+ 0xbc, 0xbf, 0xc2, 0xc5,
+ 0xc7, 0xca, 0xcc, 0xce,
+ 0xd1, 0xd2, 0xd4, 0xd6,
+ 0xd7, 0xd9, 0xda, 0xdb,
+ 0xdb, 0xdc, 0xdc, 0xdd,
+ 0xdd, 0xdc, 0xdc, 0xdc,
+ 0xdb, 0xda, 0xd9, 0xd8,
+ 0xd7, 0xd5, 0xd3, 0xd2,
+ 0xd0, 0xcd, 0xcb, 0xc9,
+ 0xc6, 0xc3, 0xc1, 0xbe,
+ 0xbb, 0xb8, 0xb4, 0xb1,
+ 0xae, 0xaa, 0xa7, 0xa3,
+ 0x9f, 0x9c, 0x98, 0x94,
+ 0x90, 0x8c, 0x89, 0x85,
+ 0x81, 0x7d, 0x79, 0x75,
+ 0x71, 0x6d, 0x69, 0x66,
+ 0x62, 0x5e, 0x5a, 0x57,
+ 0x53, 0x50, 0x4c, 0x49,
+ 0x45, 0x42, 0x3e, 0x3b,
+ 0x38, 0x35, 0x32, 0x2f,
+ 0x2c, 0x29, 0x26, 0x23
+ #endif /* 128 bytes table */
+
+ #if RGBLIGHT_BREATHE_TABLE_SIZE == 64
+ 0x22, 0x28,
+ 0x2d, 0x33,
+ 0x3a, 0x40,
+ 0x47, 0x4e,
+ 0x55, 0x5c,
+ 0x64, 0x6b,
+ 0x73, 0x7b,
+ 0x83, 0x8a,
+ 0x92, 0x9a,
+ 0xa1, 0xa8,
+ 0xaf, 0xb6,
+ 0xbc, 0xc2,
+ 0xc7, 0xcc,
+ 0xd1, 0xd4,
+ 0xd7, 0xda,
+ 0xdb, 0xdc,
+ 0xdd, 0xdc,
+ 0xdb, 0xd9,
+ 0xd7, 0xd3,
+ 0xd0, 0xcb,
+ 0xc6, 0xc1,
+ 0xbb, 0xb4,
+ 0xae, 0xa7,
+ 0x9f, 0x98,
+ 0x90, 0x89,
+ 0x81, 0x79,
+ 0x71, 0x69,
+ 0x62, 0x5a,
+ 0x53, 0x4c,
+ 0x45, 0x3e,
+ 0x38, 0x32,
+ 0x2c, 0x26
+ #endif /* 64 bytes table */
+};
+
+static const int table_scale = 256/sizeof(rgblight_effect_breathe_table);
+
+#endif /* RGBLIGHT_EFFECT_BREATHE_TABLE */
diff --git a/quantum/template/avr/config.h b/quantum/template/avr/config.h
index a9bb75482..48d7afb14 100644
--- a/quantum/template/avr/config.h
+++ b/quantum/template/avr/config.h
@@ -77,6 +77,12 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
// #define RGBLIGHT_EFFECT_STATIC_GRADIENT
// #define RGBLIGHT_EFFECT_RGB_TEST
// #define RGBLIGHT_EFFECT_ALTERNATING
+// /*== customize breathing effect ==*/
+// /*==== (DEFAULT) use fixed table instead of exp() and sin() ====*/
+// #define RGBLIGHT_BREATHE_TABLE_SIZE 256 // 256(default) or 128 or 64
+// /*==== use exp() and sin() ====*/
+// #define RGBLIGHT_EFFECT_BREATHE_CENTER 1.85 // 1 to 2.7
+// #define RGBLIGHT_EFFECT_BREATHE_MAX 255 // 0 to 255
// #endif
/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
diff --git a/util/rgblight_breathing_table_calc.c b/util/rgblight_breathing_table_calc.c
new file mode 100644
index 000000000..fc4d49ea5
--- /dev/null
+++ b/util/rgblight_breathing_table_calc.c
@@ -0,0 +1,49 @@
+//
+// calculate rgblight_effect_breathe_table[] values
+//
+// this is host program for quantum/rgblight.c:void rgblight_effect_breathing();
+//
+// example:
+// $ edit util/rgblight_breathing_table_calc.c
+// $ cc -o util/rgblight_breathing_table_calc util/rgblight_breathing_table_calc.c
+// $ ./util/rgblight_breathing_table_calc > keyboards/KEYBOARD_NAME/keymaps/KEYMAP_NAME/rgblight_breathe_table.h
+//
+#include <stdio.h>
+#include <math.h>
+#include <stdint.h>
+
+/// customize breeathing effect part ///////////////////////////
+#define RGBLIGHT_EFFECT_BREATHE_CENTER 1.85 // 1 to 2.7
+#define RGBLIGHT_EFFECT_BREATHE_MAX 255 // 0 to 255
+////////////////////////////////////////////////////////////////
+
+int main(void) {
+ int pos, step;
+ int table[256];
+ for (pos = 0; pos < 256; pos ++ ) {
+ table[pos] = (uint8_t)(
+ (exp(sin((pos/255.0)*M_PI))- RGBLIGHT_EFFECT_BREATHE_CENTER/M_E)
+ * (RGBLIGHT_EFFECT_BREATHE_MAX/(M_E-1/M_E))
+ );
+ }
+ printf("#ifndef RGBLIGHT_EFFECT_BREATHE_TABLE\n");
+ printf("#define RGBLIGHT_EFFECT_BREATHE_TABLE\n\n");
+ printf("const uint8_t rgblight_effect_breathe_table[] PROGMEM = {\n");
+ printf(" /* #define RGBLIGHT_EFFECT_BREATHE_CENTER %.2f */\n", RGBLIGHT_EFFECT_BREATHE_CENTER);
+ printf(" /* #define RGBLIGHT_EFFECT_BREATHE_MAX %d */\n", RGBLIGHT_EFFECT_BREATHE_MAX);
+
+ for (int s = 0, step = (1<<s); s < 3 ; s += 1, step = (1<<s) ) {
+ printf("\n #if RGBLIGHT_BREATHE_TABLE_SIZE == %d\n",
+ s == 0 ? 256:(s== 1 ? 128: 64));
+ for (pos = 0; pos < 256; pos += step ) {
+ printf(" 0x%x%s", table[pos], (pos+step)>=256?"":"," );
+ if ((pos+step) % 8 == 0)
+ printf("\n");
+ }
+ printf(" #endif /* %d bytes table */\n", s == 0 ? 256:(s== 1 ? 128: 64));
+ }
+ printf("};\n");
+ printf("\nstatic const int table_scale = 256/sizeof(rgblight_effect_breathe_table);\n");
+ printf("\n#endif /* RGBLIGHT_EFFECT_BREATHE_TABLE */\n");
+ return 0;
+}