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std::pair<const char *, char16_t *>
lsx_convert_latin1_to_utf16le(const char *buf, size_t len,
char16_t *utf16_output) {
const char *end = buf + len;
__m128i zero = __lsx_vldi(0);
while (buf + 16 <= end) {
__m128i in8 = __lsx_vld(reinterpret_cast<const uint8_t *>(buf), 0);
__m128i inlow = __lsx_vilvl_b(zero, in8);
__m128i inhigh = __lsx_vilvh_b(zero, in8);
__lsx_vst(inlow, reinterpret_cast<uint16_t *>(utf16_output), 0);
__lsx_vst(inhigh, reinterpret_cast<uint16_t *>(utf16_output), 16);
utf16_output += 16;
buf += 16;
}
return std::make_pair(buf, utf16_output);
}
std::pair<const char *, char16_t *>
lsx_convert_latin1_to_utf16be(const char *buf, size_t len,
char16_t *utf16_output) {
const char *end = buf + len;
__m128i zero = __lsx_vldi(0);
while (buf + 16 <= end) {
__m128i in8 = __lsx_vld(reinterpret_cast<const uint8_t *>(buf), 0);
__m128i inlow = __lsx_vilvl_b(in8, zero);
__m128i inhigh = __lsx_vilvh_b(in8, zero);
__lsx_vst(inlow, reinterpret_cast<uint16_t *>(utf16_output), 0);
__lsx_vst(inhigh, reinterpret_cast<uint16_t *>(utf16_output), 16);
utf16_output += 16;
buf += 16;
}
return std::make_pair(buf, utf16_output);
}
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