59 lines
1.8 KiB
C++
59 lines
1.8 KiB
C++
#include "assets/pools/mesh_pool.hpp"
|
|
|
|
#include <sophia/util/assert.hpp>
|
|
|
|
namespace sophia {
|
|
|
|
namespace {
|
|
constexpr u32 GENERATION_MASK = (1u << 12) - 1;
|
|
} // namespace
|
|
|
|
MeshPool::MeshPool(Device& device) : device{device} {}
|
|
|
|
MeshPool::~MeshPool() = default;
|
|
|
|
MeshHandle MeshPool::create(const Mesh::Builder& builder) {
|
|
auto mesh = std::make_unique<Mesh>(device, builder);
|
|
|
|
if (!freeList.empty()) {
|
|
u32 index = freeList.back();
|
|
freeList.pop_back();
|
|
slots[index].mesh = std::move(mesh);
|
|
return MeshHandle{index, slots[index].generation};
|
|
}
|
|
|
|
slots.push_back(Slot{std::move(mesh), 0});
|
|
return MeshHandle{static_cast<u32>(slots.size() - 1), 0};
|
|
}
|
|
|
|
const Mesh& MeshPool::get(MeshHandle handle) const {
|
|
SOPHIA_ASSERT(handle.isValid(), "invalid MeshHandle");
|
|
SOPHIA_ASSERT(handle.index < slots.size(),
|
|
"MeshHandle index out of range:", handle.index);
|
|
|
|
const Slot& slot = slots[handle.index];
|
|
SOPHIA_ASSERT(slot.generation == handle.generation,
|
|
"stale MeshHandle (generation mismatch):", handle.index);
|
|
SOPHIA_ASSERT(slot.mesh != nullptr,
|
|
"MeshHandle refers to a released mesh:", handle.index);
|
|
return *slot.mesh;
|
|
}
|
|
|
|
void MeshPool::release(MeshHandle handle) {
|
|
SOPHIA_ASSERT(handle.isValid(), "invalid MeshHandle");
|
|
SOPHIA_ASSERT(handle.index < slots.size(),
|
|
"MeshHandle index out of range:", handle.index);
|
|
|
|
Slot& slot = slots[handle.index];
|
|
SOPHIA_ASSERT(slot.generation == handle.generation,
|
|
"stale MeshHandle (generation mismatch):", handle.index);
|
|
SOPHIA_ASSERT(slot.mesh != nullptr,
|
|
"MeshHandle already released:", handle.index);
|
|
|
|
slot.mesh.reset();
|
|
slot.generation = (slot.generation + 1) & GENERATION_MASK;
|
|
freeList.push_back(handle.index);
|
|
}
|
|
|
|
} // namespace sophia
|