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Add the ability to get or set a channel compressed.

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This commit is contained in:
Relintai 2020-04-05 22:07:52 +02:00
parent 98707674a4
commit 25da88da19
3 changed files with 66 additions and 0 deletions
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4
world/blocky/voxel_chunk_blocky.cpp
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@ -48,4 +48,8 @@ void VoxelChunkBlocky::_create_meshers() {
}
void VoxelChunkBlocky::_bind_methods() {
ADD_PROPERTYI(PropertyInfo(Variant::POOL_BYTE_ARRAY, "data_channel"), "set_channel_compressed", "get_channel_compressed", 0);
//ClassDB::bind_method(D_METHOD("get_channel_compressed", "channel_index"), &VoxelChunk::get_channel_compressed);
//ClassDB::bind_method(D_METHOD("set_channel_compressed", "channel_index", "array"), &VoxelChunk::set_channel_compressed);
}

59
world/voxel_chunk.cpp
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@ -24,6 +24,8 @@ SOFTWARE.
#include "voxel_world.h"
#include "../thirdparty/lz4/lz4.h"
_FORCE_INLINE_ bool VoxelChunk::get_process() const {
return _is_processing;
}
@ -411,6 +413,60 @@ void VoxelChunk::set_channel_array(int channel_index, const PoolByteArray &array
}
}
PoolByteArray VoxelChunk::get_channel_compressed(int channel_index) const {
PoolByteArray arr;
int size = _data_size_x * _data_size_y * _data_size_z;
if (channel_index >= _channels.size())
return arr;
uint8_t *ch = _channels.get(channel_index);
if (ch == NULL)
return arr;
int bound = LZ4_compressBound(size);
arr.resize(bound);
PoolByteArray::Write w = arr.write();
int ns = LZ4_compress_default(reinterpret_cast<char *>(ch), reinterpret_cast<char *>(w.ptr()), size, bound);
w.release();
arr.resize(ns);
return arr;
}
void VoxelChunk::set_channel_compressed(int channel_index, const PoolByteArray &data) {
if (data.size() == 0)
return;
int size = _data_size_x * _data_size_y * _data_size_z;
if (_channels.size() <= channel_index)
set_channel_count(channel_index + 1);
uint8_t *ch = _channels.get(channel_index);
if (ch == NULL) {
if (_channels[channel_index] != NULL)
return;
ch = memnew_arr(uint8_t, size);
_channels.set(channel_index, ch);
}
int ds = data.size();
print_error(String::num(ds));
PoolByteArray::Read r = data.read();
//We are not going to write to it
uint8_t *data_arr = const_cast<uint8_t *>(r.ptr());
LZ4_decompress_safe(reinterpret_cast<char *>(data_arr), reinterpret_cast<char *>(ch), ds, size);
}
_FORCE_INLINE_ uint32_t VoxelChunk::get_data_index(uint32_t x, uint32_t y, uint32_t z) const {
return y + _data_size_y * (x + _data_size_x * z);
}
@ -918,6 +974,9 @@ void VoxelChunk::_bind_methods() {
ClassDB::bind_method(D_METHOD("get_channel_array", "channel_index"), &VoxelChunk::get_channel_array);
ClassDB::bind_method(D_METHOD("set_channel_array", "channel_index", "array"), &VoxelChunk::set_channel_array);
ClassDB::bind_method(D_METHOD("get_channel_compressed", "channel_index"), &VoxelChunk::get_channel_compressed);
ClassDB::bind_method(D_METHOD("set_channel_compressed", "channel_index", "array"), &VoxelChunk::set_channel_compressed);
ClassDB::bind_method(D_METHOD("get_data_index", "x", "y", "z"), &VoxelChunk::get_data_index);
ClassDB::bind_method(D_METHOD("get_data_size"), &VoxelChunk::get_data_size);

3
world/voxel_chunk.h
View File

@ -155,6 +155,9 @@ public:
PoolByteArray get_channel_array(int channel_index) const;
void set_channel_array(int channel_index, const PoolByteArray &array);
PoolByteArray get_channel_compressed(int channel_index) const;
void set_channel_compressed(int channel_index, const PoolByteArray &data);
uint32_t get_data_index(uint32_t x, uint32_t y, uint32_t z) const;
uint32_t get_data_size() const;