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#include "gfx/gl/instanceVertices.h"
#include "testMainWindow.h"
#include <benchmark/benchmark.h>
#include <random>
namespace {
struct Instance {
GlobalPosition3D pos;
glm::mat3 rot;
};
const TestMainWindowAppBase _;
class Data : public benchmark::Fixture {
public:
void
SetUp(::benchmark::State & state) override
{
auto count = static_cast<size_t>(state.range());
std::mt19937 gen(std::random_device {}());
std::uniform_int_distribution<GlobalDistance> xyDistrib(0, 1000000);
std::uniform_int_distribution<GlobalDistance> zDistrib(0, 10000);
proxies.reserve(count);
instances.reserve(count);
while (count--) {
proxies.emplace_back(instances.acquire(
GlobalPosition3D {xyDistrib(gen), xyDistrib(gen), zDistrib(gen)}, glm::mat3 {}));
}
}
void
TearDown(::benchmark::State &) override
{
proxies.clear();
}
InstanceVertices<Instance> instances;
std::vector<InstanceVertices<Instance>::InstanceProxy> proxies;
};
BENCHMARK_DEFINE_F(Data, partition1)(benchmark::State & state)
{
GlobalPosition2D pos {};
for (auto loop : state) {
instances.partition([&pos](const auto & instance) {
return std::abs(instance.pos.x - pos.x) < 5 && std::abs(instance.pos.y - pos.y) < 5;
});
pos += GlobalPosition2D {33, 17};
pos %= 1000000;
}
}
BENCHMARK_DEFINE_F(Data, partition2)(benchmark::State & state)
{
GlobalPosition2D pos {};
for (auto loop : state) {
instances.partition(
[&pos](const auto & instance) {
return std::abs(instance.pos.x - pos.x) < 5;
},
[&pos](const auto & instance) {
return std::abs(instance.pos.y - pos.y) < 5;
});
pos += GlobalPosition2D {33, 17};
pos %= 1000000;
}
}
}
BENCHMARK_REGISTER_F(Data, partition1)->Range(0, 1 << 20);
BENCHMARK_REGISTER_F(Data, partition2)->Range(0, 1 << 20);
BENCHMARK_MAIN();
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