From ac64dbfb8d3352d84d5571db4883d7fbe67f8c94 Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@koston.org>
Date: Fri, 11 Jul 2025 07:18:15 -1000
Subject: [PATCH] encode perf

---
 esphome/components/api/proto.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/esphome/components/api/proto.h b/esphome/components/api/proto.h
index 7be4782c2f..0346b10dd1 100644
--- a/esphome/components/api/proto.h
+++ b/esphome/components/api/proto.h
@@ -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;