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Merge pull request #3904 from DedeHai/FX_fcn_improvements

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added improvements to color scaling and blurring
This commit is contained in:
Blaž Kristan
2024-04-16 17:41:20 +02:00
committed by Frank
parent 7dc6659e70
commit 48c64aecff
4 changed files with 168 additions and 114 deletions
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57
wled00/FX_fcn.cpp
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@@ -1030,11 +1030,7 @@ void IRAM_ATTR_YN Segment::setPixelColor(int i, uint32_t col) //WLEDMM: IRAM_ATT
uint8_t _bri_t = currentBri(on ? opacity : 0);
if (!_bri_t && !transitional && fadeTransition) return; // if _bri_t == 0 && segment is not transitioning && transitions are enabled then save a few CPU cycles
if (_bri_t < 255) {
byte r = scale8(R(col), _bri_t);
byte g = scale8(G(col), _bri_t);
byte b = scale8(B(col), _bri_t);
byte w = scale8(W(col), _bri_t);
col = RGBW32(r, g, b, w);
col = color_fade(col, _bri_t);
}
// expand pixel (taking into account start, grouping, spacing [and offset])
@@ -1357,42 +1353,43 @@ void Segment::fadeToBlackBy(uint8_t fadeBy) {
/*
* blurs segment content, source: FastLED colorutils.cpp
*/
void Segment::blur(uint8_t blur_amount)
{
void Segment::blur(uint8_t blur_amount, bool smear) {
if (!isActive() || blur_amount == 0) return; // optimization: 0 means "don't blur"
#ifndef WLED_DISABLE_2D
if (is2D()) {
// compatibility with 2D
const uint_fast16_t cols = virtualWidth();
const uint_fast16_t rows = virtualHeight();
for (uint_fast16_t i = 0; i < rows; i++) blurRow(i, blur_amount); // blur all rows
for (uint_fast16_t k = 0; k < cols; k++) blurCol(k, blur_amount); // blur all columns
const unsigned cols = virtualWidth();
const unsigned rows = virtualHeight();
for (unsigned i = 0; i < rows; i++) blurRow(i, blur_amount, smear); // blur all rows
for (unsigned k = 0; k < cols; k++) blurCol(k, blur_amount, smear); // blur all columns
return;
}
#endif
uint8_t keep = 255 - blur_amount;
uint8_t keep = smear ? 255 : 255 - blur_amount;
uint8_t seep = blur_amount >> 1;
CRGB carryover = CRGB::Black;
uint_fast16_t vlength = virtualLength();
for(uint_fast16_t i = 0; i < vlength; i++)
{
CRGB cur = CRGB(getPixelColor(i));
CRGB part = cur;
uint32_t before = uint32_t(cur); // remember color before blur
part.nscale8(seep);
cur.nscale8(keep);
cur += carryover;
if(i > 0) {
uint32_t c = getPixelColor(i-1);
uint8_t r = R(c);
uint8_t g = G(c);
uint8_t b = B(c);
setPixelColor((uint16_t)(i-1), qadd8(r, part.red), qadd8(g, part.green), qadd8(b, part.blue));
unsigned vlength = virtualLength();
uint32_t carryover = BLACK;
uint32_t lastnew;
uint32_t last;
uint32_t curnew;
for (unsigned i = 0; i < vlength; i++) {
uint32_t cur = getPixelColor(i);
uint32_t part = color_fade(cur, seep);
curnew = color_fade(cur, keep);
if (i > 0) {
if (carryover)
curnew = color_add(curnew, carryover, true);
uint32_t prev = color_add(lastnew, part, true);
if (last != prev) // optimization: only set pixel if color has changed
setPixelColor(i - 1, prev);
}
if (before != uint32_t(cur)) // optimization: only set pixel if color has changed
setPixelColor((uint16_t)i,cur.red, cur.green, cur.blue);
else // first pixel
setPixelColor(i, curnew);
lastnew = curnew;
last = cur; // save original value for comparison on next iteration
carryover = part;
}
setPixelColor(vlength - 1, curnew);
}
/*