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encode perf

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J. Nick Koston 2025-07-11 07:18:15 -10:00
parent 9e78b5b06f
commit ac64dbfb8d
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1 changed files with 12 additions and 0 deletions
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12
esphome/components/api/proto.h
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@ -176,6 +176,18 @@ class ProtoVarInt {
out.push_back(val);
return;
}
// Optimize for 2-byte varints (0x80-0x3FFF)
if (val <= 0x3FFF) {
out.push_back((val & 0x7F) | 0x80);
out.push_back(val >> 7);
return;
}
// For 3+ byte varints, write first 2 bytes directly
out.push_back((val & 0x7F) | 0x80);
out.push_back(((val >> 7) & 0x7F) | 0x80);
val >>= 14;
// Continue with remaining bytes
while (val) {
uint8_t temp = val & 0x7F;
val >>= 7;