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Improved speed and reduced memory usage for Blends effect

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color_blend() function only generates 256 colors from the palette before repeating. Improved the function to use either 256 max or the segment length if shorter.
This commit is contained in:
Tyler Walters 2021-12-06 22:17:35 -05:00
parent 66bad2b6f8
commit eab132ed32
1 changed files with 10 additions and 4 deletions
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14
wled00/FX.cpp
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@ -3783,18 +3783,24 @@ uint16_t WS2812FX::mode_washing_machine(void) {
Modified, originally by Mark Kriegsman https://gist.github.com/kriegsman/1f7ccbbfa492a73c015e
*/
uint16_t WS2812FX::mode_blends(void) {
uint16_t dataSize = sizeof(uint32_t) * SEGLEN; // max segment length of 56 pixels on 16 segment ESP8266
uint16_t pixelLen = SEGLEN > UINT8_MAX ? UINT8_MAX : SEGLEN;
uint16_t dataSize = sizeof(uint32_t) * (pixelLen + 1); // max segment length of 56 pixels on 16 segment ESP8266
if (!SEGENV.allocateData(dataSize)) return mode_static(); //allocation failed
uint32_t* pixels = reinterpret_cast<uint32_t*>(SEGENV.data);
uint8_t blendSpeed = map(SEGMENT.intensity, 0, UINT8_MAX, 10, 128);
uint8_t shift = (now * ((SEGMENT.speed >> 3) +1)) >> 8;
uint8_t shift = (now * ((SEGMENT.speed >> 3) +1)) >> 8;
for (int i = 0; i < SEGLEN; i++) {
for (int i = 0; i < pixelLen; i++) {
pixels[i] = color_blend(pixels[i], color_from_palette(shift + quadwave8((i + 1) * 16), false, PALETTE_SOLID_WRAP, 255), blendSpeed);
setPixelColor(i, pixels[i]);
shift += 3;
}
uint16_t offset = 0;
for (int i = 0; i < SEGLEN; i++) {
setPixelColor(i, pixels[offset++]);
if (offset > pixelLen) offset = 0;
}
return FRAMETIME;
}