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https://github.com/fastfetch-cli/fastfetch.git
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李通洲
27 lines
873 B
C
27 lines
873 B
C
#include "efi.h"
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static inline uint8_t evBits(uint16_t val, uint8_t mask, uint8_t shift)
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{
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return (uint8_t) ((val & (mask << shift)) >> shift);
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}
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void ffEfiUcs2ToUtf8(const uint16_t *const chars, FFstrbuf* result)
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{
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for (uint32_t i = 0; chars[i]; i++)
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{
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if (chars[i] <= 0x007f)
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ffStrbufAppendC(result, (char) chars[i]);
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else if (chars[i] > 0x007f && chars[i] <= 0x07ff)
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{
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ffStrbufAppendC(result, (char) (0xc0 | evBits(chars[i], 0x1f, 6)));
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ffStrbufAppendC(result, (char) (0x80 | evBits(chars[i], 0x3f, 0)));
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}
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else
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{
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ffStrbufAppendC(result, (char) (0xe0 | evBits(chars[i], 0xf, 12)));
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ffStrbufAppendC(result, (char) (0x80 | evBits(chars[i], 0x3f, 6)));
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ffStrbufAppendC(result, (char) (0x80 | evBits(chars[i], 0x3f, 0)));
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}
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}
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}
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