forked from Makuna/NeoPixelBus
122 lines
3.9 KiB
C++
122 lines
3.9 KiB
C++
/*-------------------------------------------------------------------------
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Neo2ByteElements provides feature base classes to describe color elements
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for NeoPixelBus Color Feature template classes
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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 Neo2ByteElements
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{
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public:
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static const size_t PixelSize = 2; // 1 bit + 555 encoded elements
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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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for (uint8_t iElement = 0; iElement < PixelSize; iElement++)
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{
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*pPixelDest++ = pPixelSrc[iElement];
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}
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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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}
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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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}
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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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}
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}
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typedef RgbColor ColorObject;
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protected:
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static void encodePixel(uint8_t c1, uint8_t c2, uint8_t c3, uint16_t* color555)
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{
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*color555 = (0x8000 |
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((c1 & 0xf8) << 7) |
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((c2 & 0xf8) << 2) |
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((c3 & 0xf8) >> 3));
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}
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static void decodePixel(uint16_t color555, uint8_t* c1, uint8_t* c2, uint8_t* c3)
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{
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*c1 = (color555 >> 7) & 0xf8;
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*c2 = (color555 >> 2) & 0xf8;
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*c3 = (color555 << 3) & 0xf8;
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}
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};
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class Neo2ByteElementsNoSettings : public Neo2ByteElements
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{
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public:
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typedef NeoNoSettings SettingsObject;
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static const size_t SettingsSize = 0;
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static void applySettings([[maybe_unused]] uint8_t* pData, [[maybe_unused]] size_t sizeData, [[maybe_unused]] const SettingsObject& settings)
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{
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}
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static uint8_t* pixels([[maybe_unused]] uint8_t* pData, [[maybe_unused]] size_t sizeData)
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{
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return pData;
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}
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static const uint8_t* pixels([[maybe_unused]] const uint8_t* pData, [[maybe_unused]] size_t sizeData)
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{
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return pData;
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}
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}; |