ActiveModColor: Improve latency by caching interesting keys on layer change

Keys normally only change when switching layers, so instead of going through
every key in every cycle to look for modifiers, do that once, when layers
change (using the new `onLayerChange` event), and store the coordinates of keys
we consider modifiers in an array (currently limited to 16 items).

Then, when we want to highlight them, go over this array only, significantly
reducing the work we need to do. In a typical case, on a full-size keyboard, one
would have eight modifiers and a few layer keys, so instead of going through a
hundred keys, we go through sixteen at most, but usually considerably less.

This fixes #403, at the cost of noticeably higher PROGMEM and RAM use.

Signed-off-by: Gergely Nagy <algernon@keyboard.io>
pull/363/head
Gergely Nagy 6 years ago
parent 7214cc0d47
commit 38681b9681
No known key found for this signature in database
GPG Key ID: AC1E90BAC433F68F

@ -22,41 +22,30 @@
namespace kaleidoscope {
namespace plugin {
uint8_t ActiveModColorEffect::mod_keys_[MAX_MODS_PER_LAYER];
uint8_t ActiveModColorEffect::mod_key_count_;
cRGB ActiveModColorEffect::highlight_color = (cRGB) {
0xff, 0xff, 0xff
};
cRGB ActiveModColorEffect::sticky_color = CRGB(0xff, 0x00, 0x00);
EventHandlerResult ActiveModColorEffect::beforeReportingState() {
EventHandlerResult ActiveModColorEffect::onLayerChange() {
if (!Kaleidoscope.has_leds)
return EventHandlerResult::OK;
mod_key_count_ = 0;
for (byte r = 0; r < ROWS; r++) {
for (byte c = 0; c < COLS; c++) {
Key k = Layer.lookupOnActiveLayer(r, c);
if (::OneShot.isOneShotKey(k)) {
if (::OneShot.isSticky(k))
::LEDControl.setCrgbAt(r, c, sticky_color);
else if (::OneShot.isActive(k))
::LEDControl.setCrgbAt(r, c, highlight_color);
else
::LEDControl.refreshAt(r, c);
} else if (k.raw >= Key_LeftControl.raw && k.raw <= Key_RightGui.raw) {
if (hid::isModifierKeyActive(k))
::LEDControl.setCrgbAt(r, c, highlight_color);
else
::LEDControl.refreshAt(r, c);
} else if (k.flags == (SYNTHETIC | SWITCH_TO_KEYMAP)) {
uint8_t layer = k.keyCode;
if (layer >= LAYER_SHIFT_OFFSET)
layer -= LAYER_SHIFT_OFFSET;
if (Layer.isOn(layer))
::LEDControl.setCrgbAt(r, c, highlight_color);
else
::LEDControl.refreshAt(r, c);
Key k = Layer.lookup(r, c);
if (::OneShot.isOneShotKey(k) ||
(k.raw >= Key_LeftControl.raw && k.raw <= Key_RightGui.raw) ||
(k.flags == (SYNTHETIC | SWITCH_TO_KEYMAP))) {
uint8_t coords = r * COLS + c;
mod_keys_[mod_key_count_++] = coords;
}
}
}
@ -64,6 +53,41 @@ EventHandlerResult ActiveModColorEffect::beforeReportingState() {
return EventHandlerResult::OK;
}
EventHandlerResult ActiveModColorEffect::beforeReportingState() {
for (uint8_t i = 0; i < mod_key_count_; i++) {
uint8_t coords = mod_keys_[i];
byte c = coords % COLS;
byte r = (coords - c) / COLS;
Key k = Layer.lookup(r, c);
if (::OneShot.isOneShotKey(k)) {
if (::OneShot.isSticky(k))
::LEDControl.setCrgbAt(r, c, sticky_color);
else if (::OneShot.isActive(k))
::LEDControl.setCrgbAt(r, c, highlight_color);
else
::LEDControl.refreshAt(r, c);
} else if (k.raw >= Key_LeftControl.raw && k.raw <= Key_RightGui.raw) {
if (hid::isModifierKeyActive(k))
::LEDControl.setCrgbAt(r, c, highlight_color);
else
::LEDControl.refreshAt(r, c);
} else if (k.flags == (SYNTHETIC | SWITCH_TO_KEYMAP)) {
uint8_t layer = k.keyCode;
if (layer >= LAYER_SHIFT_OFFSET)
layer -= LAYER_SHIFT_OFFSET;
if (Layer.isOn(layer))
::LEDControl.setCrgbAt(r, c, highlight_color);
else
::LEDControl.refreshAt(r, c);
}
}
return EventHandlerResult::OK;
}
}
}

@ -20,6 +20,8 @@
#include <Kaleidoscope.h>
#include <Kaleidoscope-LEDControl.h>
#define MAX_MODS_PER_LAYER 16
namespace kaleidoscope {
namespace plugin {
class ActiveModColorEffect : public kaleidoscope::Plugin {
@ -30,6 +32,11 @@ class ActiveModColorEffect : public kaleidoscope::Plugin {
static cRGB sticky_color;
EventHandlerResult beforeReportingState();
EventHandlerResult onLayerChange();
private:
static uint8_t mod_keys_[MAX_MODS_PER_LAYER];
static uint8_t mod_key_count_;
};
}
}

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