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commit 3da8d46a07167fc862e90b6bb232812d5cb64651
parent 4db31fb374d365bfa0f5c8a25d089bb2f967352f
Author: Takeshi ISHII <2170248+mtei@users.noreply.github.com>
Date:   Thu,  2 May 2019 23:59:29 +0900

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.

Diffstat:
docs/feature_rgblight.md | 2+-
quantum/rgblight.c | 12++++++++++++
quantum/rgblight.h | 4+---
quantum/rgblight_breathe_table.h | 116+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
quantum/template/avr/config.h | 6++++++
util/rgblight_breathing_table_calc.c | 49+++++++++++++++++++++++++++++++++++++++++++++++++
6 files changed, 185 insertions(+), 4 deletions(-)

diff --git 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 @@ -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 @@ -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 @@ -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 @@ -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 @@ -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; +}