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Code Issues Releases Wiki Activity

Reduce flash usage by replacing ProtoSize template with specialized methods (#9487)

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This commit is contained in:
J. Nick Koston
2025-07-15 15:50:32 -10:00
committed by GitHub
parent b648944973
commit c691f01c7f
3 changed files with 132 additions and 110 deletions
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38
esphome/components/api/proto.h
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@@ -189,9 +189,9 @@ class ProtoWriteBuffer {
* @param field_id Field number (tag) in the protobuf message
* @param type Wire type value:
* - 0: Varint (int32, int64, uint32, uint64, sint32, sint64, bool, enum)
* - 1: 64-bit (fixed64, sfixed64, double)
* - 2: Length-delimited (string, bytes, embedded messages, packed repeated fields)
* - 5: 32-bit (fixed32, sfixed32, float)
* - Note: Wire type 1 (64-bit fixed) is not supported
*
* Following https://protobuf.dev/programming-guides/encoding/#structure
*/
@@ -540,6 +540,42 @@ class ProtoSize {
total_size += field_id_size + NumBytes;
}
/**
* @brief Calculates and adds the size of a float field to the total message size
*/
static inline void add_float_field(uint32_t &total_size, uint32_t field_id_size, float value) {
if (value != 0.0f) {
total_size += field_id_size + 4;
}
}
// NOTE: add_double_field removed - wire type 1 (64-bit: double) not supported
// to reduce overhead on embedded systems
/**
* @brief Calculates and adds the size of a fixed32 field to the total message size
*/
static inline void add_fixed32_field(uint32_t &total_size, uint32_t field_id_size, uint32_t value) {
if (value != 0) {
total_size += field_id_size + 4;
}
}
// NOTE: add_fixed64_field removed - wire type 1 (64-bit: fixed64) not supported
// to reduce overhead on embedded systems
/**
* @brief Calculates and adds the size of a sfixed32 field to the total message size
*/
static inline void add_sfixed32_field(uint32_t &total_size, uint32_t field_id_size, int32_t value) {
if (value != 0) {
total_size += field_id_size + 4;
}
}
// NOTE: add_sfixed64_field removed - wire type 1 (64-bit: sfixed64) not supported
// to reduce overhead on embedded systems
/**
* @brief Calculates and adds the size of an enum field to the total message size
*