commit a722fea88d9dacaaae4932249f2cfc4e5ed59af8 Author: Gergely Nagy Date: Mon Jan 16 15:18:13 2017 +0100 Initial import Lifted out of the monolithic Akela library. Signed-off-by: Gergely Nagy diff --git a/.gitignore b/.gitignore new file mode 100644 index 00000000..aead9485 --- /dev/null +++ b/.gitignore @@ -0,0 +1,2 @@ +.#* +*~ diff --git a/COPYING b/COPYING new file mode 100644 index 00000000..94a9ed02 --- /dev/null +++ b/COPYING @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/README.md b/README.md new file mode 100644 index 00000000..99f3e1d2 --- /dev/null +++ b/README.md @@ -0,0 +1,60 @@ +# Akela-Heatmap + +The `Heatmap` plugin provides a LED effect, that displays a heatmap on the +keyboard. The LEDs under each key will have a color according to how much use +they see. Fewer used keys will have deep blue colors, that gradually turns +lighter, then green, to yellow, and finally red for the most used keys. The +heatmap is not updated on every key press, but periodically. It's precision is +also an approximation, and not a hundred percent exact. Nevertheless, it is a +reasonable estimate. + +## Using the plugin + +The plugin comes with reasonable defaults pre-configured, all one needs to do is +include the header, and make sure the plugin is in use: + +```c++ +#include + +void setup (void) { + Keyboardio.setup (KEYMAP_SIZE); + Keyboardio.use (&HeatmapEffect, NULL); +} +``` + +This sets up the heatmap to update every 500 cycles, which is about 2.5 seconds, +and is the default. It also registers a new LED effect, which means that if you +have not set up any other effects, then Heatmap will likely be the default. You +may not want that, so setting up at least one other LED effect, such as `LEDOff` +is highly recommended. + +## Plugin methods + +The plugin provides two methods on the `HeatmapEffect` object: + +### `.configure(updateFrequency)` + +> Sets up the update frequency of the heatmap. The smaller this value is, the +> more often the heatmap gets updated, but that comes with a cost: updating the +> heatmap takes a fairly large amount of computation, and is not fast. Doing it +> often will considerably slow down the keyboard, and that is rarely a desirable +> thing. +> +> Nevertheless, the frequency preferred is a very subjective thing, which is why +> this function exists. Give it a number, and it will wait that many scan cycles +> between updates. +> +> Defaults to *500*. + +### `.activate()` + +> When called, immediately activates the Heatmap effect. Mostly useful in the +> `setup()` method of the Sketch, or in macros that are meant to switch to the +> heatmap effect, no matter where we are in the list. + +## Further reading + +Starting from the [example][plugin:example] is the recommended way of getting +started with the plugin. + + [plugin:example]: https://github.com/Akela-Plugins/Akela-Heatmap/blob/master/examples/Heatmap/Heatmap.ino diff --git a/examples/Heatmap/Heatmap.ino b/examples/Heatmap/Heatmap.ino new file mode 100644 index 00000000..8ff990eb --- /dev/null +++ b/examples/Heatmap/Heatmap.ino @@ -0,0 +1,51 @@ +/* -*- mode: c++ -*- + * Akela -- Animated Keyboardio Extension Library for Anything + * Copyright (C) 2016, 2017 Gergely Nagy + * + * 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 3 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 . + */ + +#include + +const Key keymaps[][ROWS][COLS] PROGMEM = { + [0] = KEYMAP_STACKED + ( + Key_LEDEffectNext, Key_1, Key_2, Key_3, Key_4, Key_5, Key_LEDEffectNext, + Key_Backtick, Key_Q, Key_W, Key_E, Key_R, Key_T, Key_Tab, + Key_PageUp, Key_A, Key_S, Key_D, Key_F, Key_G, + Key_PageDn, Key_Z, Key_X, Key_C, Key_V, Key_B, Key_Esc, + + Key_LCtrl, Key_Backspace, Key_LGUI, Key_LShift, + Key_skip, + + Key_skip, Key_6, Key_7, Key_8, Key_9, Key_0, Key_skip, + Key_Enter, Key_Y, Key_U, Key_I, Key_O, Key_P, Key_Equals, + Key_H, Key_J, Key_K, Key_L, Key_Semicolon, Key_Quote, + Key_skip, Key_N, Key_M, Key_Comma, Key_Period, Key_Slash, Key_Minus, + + Key_RShift, Key_RAlt, Key_Space, Key_RCtrl, + Key_skip + ), +}; + +void setup () { + Keyboardio.setup (KEYMAP_SIZE); + Keyboardio.use (&HeatmapEffect, NULL); + + HeatmapEffect.activate (); +} + +void loop () { + Keyboardio.loop (); +} diff --git a/library.properties b/library.properties new file mode 100644 index 00000000..37b25b0a --- /dev/null +++ b/library.properties @@ -0,0 +1,10 @@ +name=Akela-Heatmap +version=0.0.0 +author=Gergely Nagy +maintainer=Gergely Nagy +sentence=Heatmap LED effect for Keyboardio boards. +paragraph=Displays a heatmap via the LEDs under each key. +category=Communication +url=https://github.com/Akela-Plugins/Akela-Heatmap +architectures=avr +dot_a_linkage=true diff --git a/src/Akela-Heatmap.h b/src/Akela-Heatmap.h new file mode 100644 index 00000000..2c0d1a10 --- /dev/null +++ b/src/Akela-Heatmap.h @@ -0,0 +1,21 @@ +/* -*- mode: c++ -*- + * Akela -- Animated Keyboardio Extension Library for Anything + * Copyright (C) 2016, 2017 Gergely Nagy + * + * 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 3 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 . + */ + +#pragma once + +#include diff --git a/src/Akela/Heatmap.cpp b/src/Akela/Heatmap.cpp new file mode 100644 index 00000000..abd4fbf2 --- /dev/null +++ b/src/Akela/Heatmap.cpp @@ -0,0 +1,123 @@ +/* -*- mode: c++ -*- + * Akela -- Animated Keyboardio Extension Library for Anything + * Copyright (C) 2016, 2017 Gergely Nagy + * + * 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 3 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 . + */ + +#include + +namespace Akela { + static uint8_t heatmap[ROWS][COLS]; + static uint16_t totalKeys; + static uint8_t highestCount; + static uint16_t updateFrequency = 500; + static uint16_t loopCount; + + static const float heatColors[][3] = {{0.3, 0.3, 0.3}, {0.3, 1, 0.3}, {1, 1, 0.3}, {1, 0.3, 0.3}}; + + static void + shiftStats (void) { + highestCount = totalKeys = 0; + for (uint8_t r = 0; r < ROWS; r++) { + for (uint8_t c = 0; c < COLS; c++) { + heatmap[r][c] = heatmap[r][c] >> 1; + totalKeys += heatmap[r][c]; + if (heatmap[r][c] > highestCount) + highestCount = heatmap[r][c]; + } + } + } + + static cRGB + computeColor (float v) { + float fb = 0; + uint8_t idx1, idx2; + + if (v <= 0) { + idx1 = idx2 = 0; + } else if (v >= 1) { + idx1 = idx2 = 3; + } else { + float val = v * 3; + idx1 = int(floor(val)); + idx2 = idx1 + 1; + fb = val - float(idx1); + } + + uint8_t r = (int)(((heatColors[idx2][0] - heatColors[idx1][0]) * fb + heatColors[idx1][0]) * 255); + uint8_t g = (int)(((heatColors[idx2][1] - heatColors[idx1][1]) * fb + heatColors[idx1][1]) * 255); + uint8_t b = (int)(((heatColors[idx2][2] - heatColors[idx1][2]) * fb + heatColors[idx1][2]) * 255); + + return {r, g, b}; + } + + Heatmap::Heatmap (void) { + } + + void + Heatmap::begin (void) { + LEDControl.mode_add (this); + event_handler_hook_add (this->eventHook); + loop_hook_add (this->loopHook); + } + + void + Heatmap::configure (uint16_t updateFreq) { + updateFrequency = updateFreq; + } + + Key + Heatmap::eventHook (Key mappedKey, byte row, byte col, uint8_t keyState) { + // if it is a synthetic key, skip it. + if (keyState & INJECTED) + return mappedKey; + + // if the key is not toggled on, return. + if (key_toggled_on (keyState)) + return mappedKey; + + totalKeys++; + heatmap[row][col]++; + if (heatmap[row][col] > highestCount) + highestCount = heatmap[row][col]; + + return mappedKey; + } + + void + Heatmap::loopHook (bool postClear) { + if (highestCount > 191 || totalKeys > 16000) + shiftStats(); + } + + void + Heatmap::update (void) { + loopCount++; + + if (loopCount < updateFrequency) + return; + + loopCount = 0; + for (uint8_t r = 0; r < ROWS; r++) { + for (uint8_t c = 0; c < COLS; c++) { + uint8_t cap = totalKeys || 1; + float v = float(heatmap[r][c]) / cap; + led_set_crgb_at (r, c, computeColor (v)); + } + } + } +}; + +Akela::Heatmap HeatmapEffect; diff --git a/src/Akela/Heatmap.h b/src/Akela/Heatmap.h new file mode 100644 index 00000000..bdb64754 --- /dev/null +++ b/src/Akela/Heatmap.h @@ -0,0 +1,39 @@ +/* -*- mode: c++ -*- + * Akela -- Animated Keyboardio Extension Library for Anything + * Copyright (C) 2016, 2017 Gergely Nagy + * + * 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 3 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 . + */ + +#pragma once + +#include + +namespace Akela { + class Heatmap : public LEDMode { + public: + Heatmap (void); + + virtual void begin (void) final; + + static void configure (uint16_t updateFrequency); + + virtual void update (void) final; + private: + static Key eventHook (Key mappedKey, byte row, byte col, uint8_t keyState); + static void loopHook (bool postClear); + }; +}; + +extern Akela::Heatmap HeatmapEffect;