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reduce allocations while reading chunks data

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MihailRis 2025-12-06 00:58:13 +03:00
parent 21f7390265
commit 9dc9441902
12 changed files with 93 additions and 43 deletions
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10
src/lighting/Lightmap.cpp
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@ -23,12 +23,10 @@ std::unique_ptr<ubyte[]> Lightmap::encode() const {
return buffer;
}
std::unique_ptr<light_t[]> Lightmap::decode(const ubyte* buffer) {
auto lights = std::make_unique<light_t[]>(CHUNK_VOL);
void Lightmap::decode(const ubyte* src) {
for (uint i = 0; i < CHUNK_VOL; i+=2) {
ubyte b = buffer[i/2];
lights[i] = ((b & 0xF) << 12);
lights[i+1] = ((b & 0xF0) << 8);
ubyte b = src[i/2];
map[i] = ((b & 0xF) << 12);
map[i+1] = ((b & 0xF0) << 8);
}
return lights;
}

2
src/lighting/Lightmap.hpp
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@ -88,7 +88,7 @@ public:
}
std::unique_ptr<ubyte[]> encode() const;
static std::unique_ptr<light_t[]> decode(const ubyte* buffer);
void decode(const ubyte* src);
static inline light_t SUN_LIGHT_ONLY = combine(0U, 0U, 0U, 15U);
};