diff options
Diffstat (limited to 'src/colorutils.cpp')
| -rw-r--r-- | src/colorutils.cpp | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/src/colorutils.cpp b/src/colorutils.cpp index c40f4860..a1acaa5a 100644 --- a/src/colorutils.cpp +++ b/src/colorutils.cpp @@ -403,13 +403,29 @@ void blur2d( CRGB* leds, uint8_t width, uint8_t height, fract8 blur_amount) blurColumns(leds, width, height, blur_amount); } -// blurRows: perform a blur1d on every row of a rectangular matrix void blurRows( CRGB* leds, uint8_t width, uint8_t height, fract8 blur_amount) { - for( uint8_t row = 0; row < height; ++row) { +/* for( uint8_t row = 0; row < height; row++) { CRGB* rowbase = leds + (row * width); blur1d( rowbase, width, blur_amount); } +*/ + // blur rows same as columns, for irregular matrix + uint8_t keep = 255 - blur_amount; + uint8_t seep = blur_amount >> 1; + for( uint8_t row = 0; row < height; row++) { + CRGB carryover = CRGB::Black; + for( uint8_t i = 0; i < width; i++) { + CRGB cur = leds[XY(i,row)]; + CRGB part = cur; + part.nscale8( seep); + cur.nscale8( keep); + cur += carryover; + if( i) leds[XY(i-1,row)] += part; + leds[XY(i,row)] = cur; + carryover = part; + } + } } // blurColumns: perform a blur1d on each column of a rectangular matrix |