godot_voxel/server/save_block_data_task.cpp

120 lines
3.7 KiB
C++

#include "save_block_data_task.h"
#include "../util/godot/funcs.h"
#include "../util/macros.h"
#include "../util/profiling.h"
#include "generate_block_task.h"
#include "voxel_server.h"
namespace zylann::voxel {
namespace {
std::atomic_int g_debug_save_block_tasks_count;
}
SaveBlockDataTask::SaveBlockDataTask(uint32_t p_volume_id, Vector3i p_block_pos, uint8_t p_lod, uint8_t p_block_size,
std::shared_ptr<VoxelBufferInternal> p_voxels, std::shared_ptr<StreamingDependency> p_stream_dependency) :
_voxels(p_voxels),
_position(p_block_pos),
_volume_id(p_volume_id),
_lod(p_lod),
_block_size(p_block_size),
_save_instances(false),
_save_voxels(true),
_stream_dependency(p_stream_dependency) {
//
++g_debug_save_block_tasks_count;
}
SaveBlockDataTask::SaveBlockDataTask(uint32_t p_volume_id, Vector3i p_block_pos, uint8_t p_lod, uint8_t p_block_size,
std::unique_ptr<InstanceBlockData> p_instances, std::shared_ptr<StreamingDependency> p_stream_dependency) :
_instances(std::move(p_instances)),
_position(p_block_pos),
_volume_id(p_volume_id),
_lod(p_lod),
_block_size(p_block_size),
_save_instances(true),
_save_voxels(false),
_stream_dependency(p_stream_dependency) {
//
++g_debug_save_block_tasks_count;
}
SaveBlockDataTask::~SaveBlockDataTask() {
--g_debug_save_block_tasks_count;
}
int SaveBlockDataTask::debug_get_running_count() {
return g_debug_save_block_tasks_count;
}
void SaveBlockDataTask::run(zylann::ThreadedTaskContext ctx) {
VOXEL_PROFILE_SCOPE();
CRASH_COND(_stream_dependency == nullptr);
Ref<VoxelStream> stream = _stream_dependency->stream;
CRASH_COND(stream.is_null());
if (_save_voxels) {
ERR_FAIL_COND(_voxels == nullptr);
VoxelBufferInternal voxels_copy;
{
RWLockRead lock(_voxels->get_lock());
// TODO Optimization: is that copy necessary? It's possible it was already done while issuing the
// request
_voxels->duplicate_to(voxels_copy, true);
}
_voxels = nullptr;
const Vector3i origin_in_voxels = (_position << _lod) * _block_size;
VoxelStream::VoxelQueryData q{ voxels_copy, origin_in_voxels, _lod };
stream->save_voxel_block(q);
}
if (_save_instances && stream->supports_instance_blocks()) {
// If the provided data is null, it means this instance block was never modified.
// Since we are in a save request, the saved data will revert to unmodified.
// On the other hand, if we want to represent the fact that "everything was deleted here",
// this should not be null.
PRINT_VERBOSE(String("Saving instance block {0} lod {1} with data {2}")
.format(varray(_position, _lod, ptr2s(_instances.get()))));
VoxelStream::InstancesQueryData instances_query{ std::move(_instances), _position, _lod };
stream->save_instance_blocks(Span<VoxelStream::InstancesQueryData>(&instances_query, 1));
}
_has_run = true;
}
int SaveBlockDataTask::get_priority() {
return 0;
}
bool SaveBlockDataTask::is_cancelled() {
return false;
}
void SaveBlockDataTask::apply_result() {
if (VoxelServer::get_singleton()->is_volume_valid(_volume_id)) {
if (_stream_dependency->valid) {
// TODO Perhaps separate save and load callbacks?
VoxelServer::BlockDataOutput o;
o.position = _position;
o.lod = _lod;
o.dropped = !_has_run;
o.max_lod_hint = false; // Unused
o.initial_load = false; // Unused
o.type = VoxelServer::BlockDataOutput::TYPE_SAVED;
VoxelServer::VolumeCallbacks callbacks = VoxelServer::get_singleton()->get_volume_callbacks(_volume_id);
CRASH_COND(callbacks.data_output_callback == nullptr);
callbacks.data_output_callback(callbacks.data, o);
}
} else {
// This can happen if the user removes the volume while requests are still about to return
PRINT_VERBOSE("Stream data request response came back but volume wasn't found");
}
}
} // namespace zylann::voxel