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Sky lights data saving (optimization)

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MihailRis 2023-12-06 16:15:44 +03:00
parent 6b423b441f
commit a102821076
12 changed files with 147 additions and 38 deletions
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21
src/lighting/Lightmap.cpp
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@ -20,12 +20,27 @@ void Lightmap::set(const Lightmap* lightmap) {
}
}
void Lightmap::set(light_t* map) {
delete[] this->map;
this->map = map;
}
static_assert(sizeof(light_t) == 2, "replace dataio calls to new light_t");
ubyte* Lightmap::encode() const {
ubyte* buffer = new ubyte[CHUNK_VOL * sizeof(light_t)];
for (uint i = 0; i < CHUNK_VOL; i++) {
dataio::write_int16_big(map[i], buffer, i * sizeof(light_t));
ubyte* buffer = new ubyte[LIGHTMAP_DATA_LEN];
for (uint i = 0; i < CHUNK_VOL; i+=2) {
buffer[i/2] = ((map[i] >> 12) & 0xF) | ((map[i+1] >> 8) & 0xF0);
}
return buffer;
}
light_t* Lightmap::decode(ubyte* buffer) {
light_t* lights = new light_t[CHUNK_VOL];
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);
}
return lights;
}