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Merge pull request #3904 from DedeHai/FX_fcn_improvements
added improvements to color scaling and blurring
This commit is contained in:
Blaž Kristan
GitHub
commit
d126611e87
12
wled00/FX.h
12
wled00/FX.h
@ -582,7 +582,7 @@ typedef struct Segment {
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#endif
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uint32_t getPixelColor(int i);
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// 1D support functions (some implement 2D as well)
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void blur(uint8_t);
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void blur(uint8_t, bool smear = false);
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void fill(uint32_t c);
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void fade_out(uint8_t r);
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void fadeToBlackBy(uint8_t fadeBy);
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@ -610,7 +610,7 @@ typedef struct Segment {
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inline void setPixelColorXY(float x, float y, byte r, byte g, byte b, byte w = 0, bool aa = true) { setPixelColorXY(x, y, RGBW32(r,g,b,w), aa); }
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inline void setPixelColorXY(float x, float y, CRGB c, bool aa = true) { setPixelColorXY(x, y, RGBW32(c.r,c.g,c.b,0), aa); }
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#endif
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uint32_t getPixelColorXY(uint16_t x, uint16_t y);
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uint32_t getPixelColorXY(int x, int y);
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// 2D support functions
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inline void blendPixelColorXY(uint16_t x, uint16_t y, uint32_t color, uint8_t blend) { setPixelColorXY(x, y, color_blend(getPixelColorXY(x,y), color, blend)); }
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inline void blendPixelColorXY(uint16_t x, uint16_t y, CRGB c, uint8_t blend) { blendPixelColorXY(x, y, RGBW32(c.r,c.g,c.b,0), blend); }
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@ -619,8 +619,8 @@ typedef struct Segment {
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inline void addPixelColorXY(int x, int y, CRGB c, bool fast = false) { addPixelColorXY(x, y, RGBW32(c.r,c.g,c.b,0), fast); }
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inline void fadePixelColorXY(uint16_t x, uint16_t y, uint8_t fade) { setPixelColorXY(x, y, color_fade(getPixelColorXY(x,y), fade, true)); }
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void box_blur(uint16_t i, bool vertical, fract8 blur_amount); // 1D box blur (with weight)
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void blurRow(uint16_t row, fract8 blur_amount);
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void blurCol(uint16_t col, fract8 blur_amount);
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void blurRow(uint32_t row, fract8 blur_amount, bool smear = false);
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void blurCol(uint32_t col, fract8 blur_amount, bool smear = false);
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void moveX(int8_t delta, bool wrap = false);
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void moveY(int8_t delta, bool wrap = false);
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void move(uint8_t dir, uint8_t delta, bool wrap = false);
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@ -655,8 +655,8 @@ typedef struct Segment {
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inline void addPixelColorXY(int x, int y, CRGB c, bool fast = false) { addPixelColor(x, RGBW32(c.r,c.g,c.b,0), fast); }
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inline void fadePixelColorXY(uint16_t x, uint16_t y, uint8_t fade) { fadePixelColor(x, fade); }
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inline void box_blur(uint16_t i, bool vertical, fract8 blur_amount) {}
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inline void blurRow(uint16_t row, fract8 blur_amount) {}
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inline void blurCol(uint16_t col, fract8 blur_amount) {}
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inline void blurRow(uint32_t row, fract8 blur_amount, bool smear = false) {}
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inline void blurCol(uint32_t col, fract8 blur_amount, bool smear = false) {}
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inline void moveX(int8_t delta, bool wrap = false) {}
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inline void moveY(int8_t delta, bool wrap = false) {}
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inline void move(uint8_t dir, uint8_t delta, bool wrap = false) {}
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@ -175,11 +175,7 @@ void IRAM_ATTR Segment::setPixelColorXY(int x, int y, uint32_t col)
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uint8_t _bri_t = currentBri();
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if (_bri_t < 255) {
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byte r = scale8(R(col), _bri_t);
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byte g = scale8(G(col), _bri_t);
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byte b = scale8(B(col), _bri_t);
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byte w = scale8(W(col), _bri_t);
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col = RGBW32(r, g, b, w);
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col = color_fade(col, _bri_t);
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}
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if (reverse ) x = virtualWidth() - x - 1;
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@ -265,7 +261,7 @@ void Segment::setPixelColorXY(float x, float y, uint32_t col, bool aa)
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#endif
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// returns RGBW values of pixel
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uint32_t IRAM_ATTR Segment::getPixelColorXY(uint16_t x, uint16_t y) {
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uint32_t IRAM_ATTR Segment::getPixelColorXY(int x, int y) {
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if (!isActive()) return 0; // not active
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if (x >= virtualWidth() || y >= virtualHeight() || x<0 || y<0) return 0; // if pixel would fall out of virtual segment just exit
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if (reverse ) x = virtualWidth() - x - 1;
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@ -278,59 +274,71 @@ uint32_t IRAM_ATTR Segment::getPixelColorXY(uint16_t x, uint16_t y) {
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}
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// blurRow: perform a blur on a row of a rectangular matrix
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void Segment::blurRow(uint16_t row, fract8 blur_amount) {
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void Segment::blurRow(uint32_t row, fract8 blur_amount, bool smear){
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if (!isActive() || blur_amount == 0) return; // not active
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const uint_fast16_t cols = virtualWidth();
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const uint_fast16_t rows = virtualHeight();
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if (row >= rows) return;
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// blur one row
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uint8_t keep = 255 - blur_amount;
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uint8_t keep = smear ? 255 : 255 - blur_amount;
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uint8_t seep = blur_amount >> 1;
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CRGB carryover = CRGB::Black;
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uint32_t carryover = BLACK;
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uint32_t lastnew;
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uint32_t last;
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uint32_t curnew;
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for (unsigned x = 0; x < cols; x++) {
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CRGB cur = getPixelColorXY(x, row);
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CRGB before = cur; // remember color before blur
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CRGB part = cur;
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part.nscale8(seep);
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cur.nscale8(keep);
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cur += carryover;
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if (x>0) {
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CRGB prev = CRGB(getPixelColorXY(x-1, row)) + part;
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setPixelColorXY(x-1, row, prev);
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uint32_t cur = getPixelColorXY(x, row);
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uint32_t part = color_fade(cur, seep);
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curnew = color_fade(cur, keep);
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if (x > 0) {
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if (carryover)
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curnew = color_add(curnew, carryover, true);
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uint32_t prev = color_add(lastnew, part, true);
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if (last != prev) // optimization: only set pixel if color has changed
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setPixelColorXY(x - 1, row, prev);
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}
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if (before != cur) // optimization: only set pixel if color has changed
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setPixelColorXY(x, row, cur);
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else // first pixel
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setPixelColorXY(x, row, curnew);
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lastnew = curnew;
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last = cur; // save original value for comparison on next iteration
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carryover = part;
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}
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setPixelColorXY(cols-1, row, curnew); // set last pixel
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}
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// blurCol: perform a blur on a column of a rectangular matrix
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void Segment::blurCol(uint16_t col, fract8 blur_amount) {
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void Segment::blurCol(uint32_t col, fract8 blur_amount, bool smear) {
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if (!isActive() || blur_amount == 0) return; // not active
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const uint_fast16_t cols = virtualWidth();
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const uint_fast16_t rows = virtualHeight();
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if (col >= cols) return;
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// blur one column
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uint8_t keep = 255 - blur_amount;
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uint8_t keep = smear ? 255 : 255 - blur_amount;
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uint8_t seep = blur_amount >> 1;
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CRGB carryover = CRGB::Black;
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uint32_t carryover = BLACK;
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uint32_t lastnew;
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uint32_t last;
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uint32_t curnew;
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for (unsigned y = 0; y < rows; y++) {
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CRGB cur = getPixelColorXY(col, y);
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CRGB part = cur;
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CRGB before = cur; // remember color before blur
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part.nscale8(seep);
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cur.nscale8(keep);
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cur += carryover;
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if (y>0) {
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CRGB prev = CRGB(getPixelColorXY(col, y-1)) + part;
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setPixelColorXY(col, y-1, prev);
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uint32_t cur = getPixelColorXY(col, y);
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uint32_t part = color_fade(cur, seep);
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curnew = color_fade(cur, keep);
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if (y > 0) {
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if (carryover)
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curnew = color_add(curnew, carryover, true);
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uint32_t prev = color_add(lastnew, part, true);
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if (last != prev) // optimization: only set pixel if color has changed
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setPixelColorXY(col, y - 1, prev);
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}
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if (before != cur) // optimization: only set pixel if color has changed
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setPixelColorXY(col, y, cur);
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carryover = part;
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else // first pixel
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setPixelColorXY(col, y, curnew);
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lastnew = curnew;
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last = cur; //save original value for comparison on next iteration
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carryover = part;
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}
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setPixelColorXY(col, rows - 1, curnew);
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}
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// 1D Box blur (with added weight - blur_amount: [0=no blur, 255=max blur])
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@ -735,11 +735,7 @@ void IRAM_ATTR Segment::setPixelColor(int i, uint32_t col)
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uint16_t len = length();
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uint8_t _bri_t = currentBri();
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if (_bri_t < 255) {
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byte r = scale8(R(col), _bri_t);
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byte g = scale8(G(col), _bri_t);
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byte b = scale8(B(col), _bri_t);
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byte w = scale8(W(col), _bri_t);
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col = RGBW32(r, g, b, w);
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col = color_fade(col, _bri_t);
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}
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// expand pixel (taking into account start, grouping, spacing [and offset])
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@ -995,33 +991,43 @@ void Segment::fadeToBlackBy(uint8_t fadeBy) {
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/*
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* blurs segment content, source: FastLED colorutils.cpp
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*/
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void Segment::blur(uint8_t blur_amount) {
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void Segment::blur(uint8_t blur_amount, bool smear) {
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if (!isActive() || blur_amount == 0) return; // optimization: 0 means "don't blur"
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#ifndef WLED_DISABLE_2D
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if (is2D()) {
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// compatibility with 2D
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const unsigned cols = virtualWidth();
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const unsigned rows = virtualHeight();
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for (unsigned i = 0; i < rows; i++) blurRow(i, blur_amount); // blur all rows
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for (unsigned k = 0; k < cols; k++) blurCol(k, blur_amount); // blur all columns
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for (unsigned i = 0; i < rows; i++) blurRow(i, blur_amount, smear); // blur all rows
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for (unsigned k = 0; k < cols; k++) blurCol(k, blur_amount, smear); // blur all columns
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return;
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}
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#endif
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uint8_t keep = 255 - blur_amount;
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uint8_t keep = smear ? 255 : 255 - blur_amount;
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uint8_t seep = blur_amount >> 1;
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uint32_t carryover = BLACK;
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unsigned vlength = virtualLength();
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uint32_t carryover = BLACK;
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uint32_t lastnew;
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uint32_t last;
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uint32_t curnew;
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for (unsigned i = 0; i < vlength; i++) {
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uint32_t cur = getPixelColor(i);
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uint32_t part = color_fade(cur, seep);
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cur = color_add(color_fade(cur, keep), carryover, true);
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curnew = color_fade(cur, keep);
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if (i > 0) {
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uint32_t c = getPixelColor(i-1);
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setPixelColor(i-1, color_add(c, part, true));
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if (carryover)
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curnew = color_add(curnew, carryover, true);
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uint32_t prev = color_add(lastnew, part, true);
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if (last != prev) // optimization: only set pixel if color has changed
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setPixelColor(i - 1, prev);
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}
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setPixelColor(i, cur);
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else // first pixel
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setPixelColor(i, curnew);
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lastnew = curnew;
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last = cur; // save original value for comparison on next iteration
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carryover = part;
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}
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setPixelColor(vlength - 1, curnew);
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}
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/*
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@ -65,24 +65,30 @@ uint32_t color_add(uint32_t c1, uint32_t c2, bool fast)
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* fades color toward black
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* if using "video" method the resulting color will never become black unless it is already black
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*/
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uint32_t color_fade(uint32_t c1, uint8_t amount, bool video)
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{
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uint8_t r = R(c1);
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uint8_t g = G(c1);
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uint8_t b = B(c1);
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uint8_t w = W(c1);
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if (video) {
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r = scale8_video(r, amount);
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g = scale8_video(g, amount);
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b = scale8_video(b, amount);
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w = scale8_video(w, amount);
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} else {
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r = scale8(r, amount);
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g = scale8(g, amount);
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b = scale8(b, amount);
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w = scale8(w, amount);
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uint32_t scaledcolor; // color order is: W R G B from MSB to LSB
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uint32_t r = R(c1);
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uint32_t g = G(c1);
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uint32_t b = B(c1);
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uint32_t w = W(c1);
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if (video) {
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uint32_t scale = amount; // 32bit for faster calculation
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scaledcolor = (((r * scale) >> 8) << 16) + ((r && scale) ? 1 : 0);
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scaledcolor |= (((g * scale) >> 8) << 8) + ((g && scale) ? 1 : 0);
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scaledcolor |= ((b * scale) >> 8) + ((b && scale) ? 1 : 0);
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scaledcolor |= (((w * scale) >> 8) << 24) + ((w && scale) ? 1 : 0);
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return scaledcolor;
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}
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else {
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uint32_t scale = 1 + amount;
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scaledcolor = ((r * scale) >> 8) << 16;
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scaledcolor |= ((g * scale) >> 8) << 8;
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scaledcolor |= (b * scale) >> 8;
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scaledcolor |= ((w * scale) >> 8) << 24;
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return scaledcolor;
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}
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return RGBW32(r, g, b, w);
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}
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void setRandomColor(byte* rgb)
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