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bring back lost function ColorFromPaletteWLED (WLEDMM_SAVE_FLASH only)

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this change was somehow lost - ColorFromPaletteWLED existed in colorTools.hpp (for fast inline) but was missing in colors.cpp (WLEDMM_SAVE_FLASH fallback).
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Frank
2025-11-01 14:16:47 +01:00
parent 96bfd56d20
commit 297a2c2b9c
2 changed files with 41 additions and 0 deletions
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34
wled00/colors.cpp
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@@ -102,6 +102,40 @@ uint32_t WLED_O2_ATTR IRAM_ATTR_YN __attribute__((hot)) color_fade(uint32_t c1,
uint32_t wg = (((c1 >> 8) & TWO_CHANNEL_MASK) * amount) & ~TWO_CHANNEL_MASK; // scale white and green
return (rb | wg) + addRemains;
}
//
// overwrite FastLed colorFromPalette with an optimized version created by dedehai (https://github.com/Aircoookie/WLED/pull/4138)
//
// 1:1 replacement of fastled function optimized for ESP, slightly faster, more accurate and uses less flash (~ -200bytes)
CRGB IRAM_ATTR_YN __attribute__((hot)) ColorFromPaletteWLED(const CRGBPalette16& pal, unsigned index, uint8_t brightness, TBlendType blendType)
{
if (blendType == LINEARBLEND_NOWRAP) {
index = (index*240) >> 8; // Blend range is affected by lo4 blend of values, remap to avoid wrapping
}
unsigned hi4 = byte(index) >> 4;
const CRGB* entry = (CRGB*)((uint8_t*)(&(pal[0])) + (hi4 * sizeof(CRGB)));
unsigned red1 = entry->r;
unsigned green1 = entry->g;
unsigned blue1 = entry->b;
if (blendType != NOBLEND) {
if (hi4 == 15) entry = &(pal[0]);
else ++entry;
unsigned f2 = ((index & 0x0F) << 4) + 1; // +1 so we scale by 256 as a max value, then result can just be shifted by 8
unsigned f1 = (257 - f2); // f2 is 1 minimum, so this is 256 max
red1 = (red1 * f1 + (unsigned)entry->r * f2) >> 8;
green1 = (green1 * f1 + (unsigned)entry->g * f2) >> 8;
blue1 = (blue1 * f1 + (unsigned)entry->b * f2) >> 8;
}
if (brightness < 255) { // note: zero checking could be done to return black but that is hardly ever used so it is omitted
uint32_t scale = brightness + 1; // adjust for rounding (bitshift)
red1 = (red1 * scale) >> 8;
green1 = (green1 * scale) >> 8;
blue1 = (blue1 * scale) >> 8;
}
return RGBW32(red1,green1,blue1,0);
//return CRGB(red1,green1,blue1);
}
#endif
void setRandomColor(byte* rgb)

7
wled00/fcn_declare.h
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@@ -51,9 +51,16 @@ bool getJsonValue(const JsonVariant& element, DestType& destination, const Defau
//colors.cpp
#if !defined(ARDUINO_ARCH_ESP32) || !defined(WLEDMM_FASTPATH) || defined(WLEDMM_SAVE_FLASH) // WLEDMM: color utils moved into colorTools.hpp, so the compiler may inline these functions (faster)
#if !defined(FASTLED_VERSION) // pull in FastLED if we don't have it yet (we need the CRGB type)
#define FASTLED_INTERNAL
#include <FastLED.h>
#endif
uint32_t __attribute__((const)) color_blend(uint32_t,uint32_t,uint_fast16_t,bool b16=false); // WLEDMM: added attribute const
uint32_t __attribute__((const)) color_add(uint32_t,uint32_t, bool fast=false); // WLEDMM: added attribute const
uint32_t __attribute__((const)) color_fade(uint32_t c1, uint8_t amount, bool video=false);
#undef ColorFromPalette // overwrite any existing override
CRGB __attribute__((hot,const)) ColorFromPaletteWLED(const CRGBPalette16& pal, unsigned index, uint8_t brightness=255, TBlendType blendType=LINEARBLEND);
#define ColorFromPalette ColorFromPaletteWLED // override fastled function
#else
#include "colorTools.hpp"
#endif