sascha/esphome
1
0
Fork 0
mirror of https://github.com/esphome/esphome.git synced 2025-11-17 07:15:48 +00:00
Code Issues Releases Wiki Activity

tweak

Browse Source
This commit is contained in:
J. Nick Koston
2025-10-28 21:37:19 -05:00
parent aa98ccf3fd
commit 61bb4ef4f0
1 changed files with 15 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
esphome/components/api/proto.h
View File

@@ -232,20 +232,24 @@ class ProtoWriteBuffer {
return; return;
} }
if (value < (1ULL << 21)) { uint8_t *p;
// 2-3 bytes - common for field IDs and lengths if (value < (1ULL << 14)) {
uint32_t size = (value < (1ULL << 14)) ? 2 : 3; // 2 bytes - common for medium field IDs and lengths
buffer->resize(start + size); buffer->resize(start + 2);
uint8_t *p = buffer->data() + start; p = buffer->data() + start;
p[0] = (value & 0x7F) | 0x80; p[0] = (value & 0x7F) | 0x80;
p[1] = (value >> 7) & 0x7F | (size == 3 ? 0x80 : 0); p[1] = (value >> 7) & 0x7F;
if (size == 3) { return;
p[2] = (value >> 14) & 0x7F; }
} if (value < (1ULL << 21)) {
// 3 bytes - rare
buffer->resize(start + 3);
p = buffer->data() + start;
p[0] = (value & 0x7F) | 0x80;
p[1] = ((value >> 7) & 0x7F) | 0x80;
p[2] = (value >> 14) & 0x7F;
return; return;
} }
uint8_t *p;
// Rare case: 4-10 byte values - calculate size from bit position // Rare case: 4-10 byte values - calculate size from bit position
// Value is guaranteed >= (1ULL << 21), so CLZ is safe (non-zero) // Value is guaranteed >= (1ULL << 21), so CLZ is safe (non-zero)