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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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20
src/world/files/WorldRegions.cpp
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@ -215,33 +215,29 @@ void WorldRegions::put(Chunk* chunk, std::vector<ubyte> entitiesData) {
}
}
std::unique_ptr<ubyte[]> WorldRegions::getVoxels(int x, int z) {
bool WorldRegions::getVoxels(int x, int z, ubyte* dst) {
uint32_t size;
uint32_t srcSize;
auto& layer = layers[REGION_LAYER_VOXELS];
auto* data = layer.getData(x, z, size, srcSize);
if (data == nullptr) {
return nullptr;
return false;
}
assert(srcSize == CHUNK_DATA_LEN);
return compression::decompress(data, size, srcSize, layer.compression);
compression::decompress({data, size}, dst, CHUNK_DATA_LEN, layer.compression);
return true;
}
std::unique_ptr<light_t[]> WorldRegions::getLights(int x, int z) {
bool WorldRegions::getLights(int x, int z, ubyte* dst) {
uint32_t size;
uint32_t srcSize;
auto& layer = layers[REGION_LAYER_LIGHTS];
auto* bytes = layer.getData(x, z, size, srcSize);
if (bytes == nullptr) {
return nullptr;
return false;
}
auto data = compression::decompress(
bytes, size, srcSize, layer.compression
);
if (srcSize == LIGHTMAP_DATA_LEN) {
return Lightmap::decode(data.get());
}
return nullptr;
compression::decompress({bytes, size}, dst, srcSize, layer.compression);
return true;
}
ChunkInventoriesMap WorldRegions::fetchInventories(int x, int z) {

8
src/world/files/WorldRegions.hpp
View file

@ -207,12 +207,12 @@ public:
/// @brief Get chunk voxels data
/// @param x chunk.x
/// @param z chunk.z
/// @return voxels data buffer or nullptr
std::unique_ptr<ubyte[]> getVoxels(int x, int z);
/// @return true if data read
bool getVoxels(int x, int z, ubyte* dst);
/// @brief Get cached lights for chunk at x,z
/// @return lights data or nullptr
std::unique_ptr<light_t[]> getLights(int x, int z);
/// @return true if data read
bool getLights(int x, int z, ubyte* dst);
ChunkInventoriesMap fetchInventories(int x, int z);