forked from Makuna/NeoPixelBus
DotStar support
APA102
This commit is contained in:
Michael Miller
@@ -0,0 +1,216 @@
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/*-------------------------------------------------------------------------
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DotStarColorFeatures provides feature classes to describe color order and
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color depth for NeoPixelBus template class when used with DotStars
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Written by Michael C. Miller.
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I invest time and resources providing this open source code,
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please support me by dontating (see https://github.com/Makuna/NeoPixelBus)
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-------------------------------------------------------------------------
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This file is part of the Makuna/NeoPixelBus library.
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NeoPixelBus is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation, either version 3 of
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the License, or (at your option) any later version.
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NeoPixelBus is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with NeoPixel. If not, see
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<http://www.gnu.org/licenses/>.
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-------------------------------------------------------------------------*/
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#pragma once
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class DotStar4Elements
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{
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public:
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static const size_t PixelSize = 4;
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static uint8_t* getPixelAddress(uint8_t* pPixels, uint16_t indexPixel)
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{
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return pPixels + indexPixel * PixelSize;
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}
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static const uint8_t* getPixelAddress(const uint8_t* pPixels, uint16_t indexPixel)
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{
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return pPixels + indexPixel * PixelSize;
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}
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static void replicatePixel(uint8_t* pPixelDest, const uint8_t* pPixelSrc, uint16_t count)
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{
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uint8_t* pEnd = pPixelDest + (count * PixelSize);
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while (pPixelDest < pEnd)
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{
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*pPixelDest++ = pPixelSrc[0];
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*pPixelDest++ = pPixelSrc[1];
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*pPixelDest++ = pPixelSrc[2];
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*pPixelDest++ = pPixelSrc[3];
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}
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}
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static void movePixelsInc(uint8_t* pPixelDest, const uint8_t* pPixelSrc, uint16_t count)
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{
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uint8_t* pEnd = pPixelDest + (count * PixelSize);
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while (pPixelDest < pEnd)
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{
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*pPixelDest++ = *pPixelSrc++;
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*pPixelDest++ = *pPixelSrc++;
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*pPixelDest++ = *pPixelSrc++;
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*pPixelDest++ = *pPixelSrc++;
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}
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}
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static void movePixelsInc_P(uint8_t* pPixelDest, PGM_VOID_P pPixelSrc, uint16_t count)
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{
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uint8_t* pEnd = pPixelDest + (count * PixelSize);
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const uint8_t* pSrc = (const uint8_t*)pPixelSrc;
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while (pPixelDest < pEnd)
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{
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*pPixelDest++ = pgm_read_byte(pSrc++);
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*pPixelDest++ = pgm_read_byte(pSrc++);
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*pPixelDest++ = pgm_read_byte(pSrc++);
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*pPixelDest++ = pgm_read_byte(pSrc++);
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}
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}
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static void movePixelsDec(uint8_t* pPixelDest, const uint8_t* pPixelSrc, uint16_t count)
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{
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uint8_t* pDestBack = pPixelDest + (count * PixelSize);
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const uint8_t* pSrcBack = pPixelSrc + (count * PixelSize);
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while (pDestBack > pPixelDest)
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{
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*--pDestBack = *--pSrcBack;
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*--pDestBack = *--pSrcBack;
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*--pDestBack = *--pSrcBack;
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*--pDestBack = *--pSrcBack;
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}
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}
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typedef RgbwColor ColorObject;
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};
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class DotStarBgrFeature : public DotStar4Elements
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{
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public:
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static void applyPixelColor(uint8_t* pPixels, uint16_t indexPixel, ColorObject color)
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{
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uint8_t* p = getPixelAddress(pPixels, indexPixel);
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*p++ = 0xff; // upper three bits are always 111 and brightness at max
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*p++ = color.B;
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*p++ = color.G;
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*p = color.R;
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}
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static ColorObject retrievePixelColor(uint8_t* pPixels, uint16_t indexPixel)
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{
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ColorObject color;
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uint8_t* p = getPixelAddress(pPixels, indexPixel);
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p++; // ignore the first byte
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color.B = *p++;
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color.G = *p++;
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color.R = *p;
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return color;
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}
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static ColorObject retrievePixelColor_P(PGM_VOID_P pPixels, uint16_t indexPixel)
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{
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ColorObject color;
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const uint8_t* p = getPixelAddress((const uint8_t*)pPixels, indexPixel);
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pgm_read_byte(p++); // ignore the first byte
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color.B = pgm_read_byte(p++);
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color.G = pgm_read_byte(p++);
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color.R = pgm_read_byte(p);
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return color;
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}
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};
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class DotStarLbgrFeature : public DotStar4Elements
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{
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public:
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static void applyPixelColor(uint8_t* pPixels, uint16_t indexPixel, ColorObject color)
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{
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uint8_t* p = getPixelAddress(pPixels, indexPixel);
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*p++ = 0xE0 | min(color.W, 31); // upper three bits are always 111
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*p++ = color.B;
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*p++ = color.G;
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*p = color.R;
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}
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static ColorObject retrievePixelColor(uint8_t* pPixels, uint16_t indexPixel)
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{
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ColorObject color;
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uint8_t* p = getPixelAddress(pPixels, indexPixel);
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color.W = (*p++) & 0x1F; // mask out upper three bits
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color.B = *p++;
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color.G = *p++;
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color.R = *p;
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return color;
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}
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static ColorObject retrievePixelColor_P(PGM_VOID_P pPixels, uint16_t indexPixel)
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{
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ColorObject color;
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const uint8_t* p = getPixelAddress((const uint8_t*)pPixels, indexPixel);
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color.W = pgm_read_byte(p++) & 0x1F; // mask out upper three bits
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color.B = pgm_read_byte(p++);
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color.G = pgm_read_byte(p++);
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color.R = pgm_read_byte(p);
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return color;
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}
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};
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class DotStarWbgrFeature : public DotStar4Elements
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{
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public:
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static void applyPixelColor(uint8_t* pPixels, uint16_t indexPixel, ColorObject color)
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{
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uint8_t* p = getPixelAddress(pPixels, indexPixel);
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*p++ = color.W;
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*p++ = color.B;
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*p++ = color.G;
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*p = color.R;
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}
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static ColorObject retrievePixelColor(uint8_t* pPixels, uint16_t indexPixel)
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{
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ColorObject color;
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uint8_t* p = getPixelAddress(pPixels, indexPixel);
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color.W = *p++;
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color.B = *p++;
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color.G = *p++;
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color.R = *p;
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return color;
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}
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static ColorObject retrievePixelColor_P(PGM_VOID_P pPixels, uint16_t indexPixel)
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{
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ColorObject color;
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const uint8_t* p = getPixelAddress((const uint8_t*)pPixels, indexPixel);
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color.W = pgm_read_byte(p++);
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color.B = pgm_read_byte(p++);
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color.G = pgm_read_byte(p++);
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color.R = pgm_read_byte(p);
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return color;
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}
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};
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