22 lines
694 B
C
22 lines
694 B
C
#pragma once
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// Counts the number of elements in an array
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#define ARRAY_COUNT(value) ( sizeof(value) / sizeof(value[0]) )
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// Swaps the endianness of a 16-bit value
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#define SWAP_ENDIAN_16(value) ( (((value) & 0xFFu) << 8u) | ((value) >> 8u) )
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// Constructs a 16-bit color value of the form RGB565 with proper ESP32 endianness
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#define RGB565(red, green, blue) ( (((red) >> 3u) << 11u) | (((green) >> 2u) << 5u) | ((blue) >> 3u) )
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// Converts bytes to bits
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#define BYTES_TO_BITS(value) ( (value) * 8 )
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// Extracts the upper byte of a 16-bit value
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#define UPPER_BYTE_16(value) ( (value) >> 8u )
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// Extracts the lower byte of a 16-bit value
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#define LOWER_BYTE_16(value) ( (value) & 0xFFu )
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