70 lines
2.1 KiB
C++
70 lines
2.1 KiB
C++
#include <benchmark/benchmark.h>
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#include <mbgl/style/function/source_function.hpp>
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#include <mbgl/style/rapidjson_conversion.hpp>
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#include <mbgl/style/conversion.hpp>
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#include <mbgl/style/conversion/function.hpp>
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#include <rapidjson/document.h>
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using namespace mbgl;
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using namespace mbgl::style;
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static rapidjson::GenericDocument<rapidjson::UTF8<>, rapidjson::CrtAllocator> createFunctionJSON(size_t stopCount) {
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rapidjson::GenericDocument<rapidjson::UTF8<>, rapidjson::CrtAllocator> doc;
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std::string stops = "[";
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for (size_t i = 0; i < stopCount; i++) {
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std::string value = std::to_string(24.0f / stopCount * i);
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if (stops.size() > 1) stops += ",";
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stops += "[" + value + ", " + value + "]";
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}
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stops += "]";
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doc.Parse<0>(R"({"type": "exponential", "base": 2, "stops": )" + stops + "}");
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return doc;
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}
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static void Parse_CameraFunction(benchmark::State& state) {
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size_t stopCount = state.range(0);
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while (state.KeepRunning()) {
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conversion::Error error;
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state.PauseTiming();
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auto doc = createFunctionJSON(stopCount);
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state.ResumeTiming();
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optional<CameraFunction<float>> result = conversion::convert<CameraFunction<float>, JSValue>(doc, error);
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if (!result) {
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state.SkipWithError(error.message.c_str());
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}
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}
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state.SetLabel(std::to_string(stopCount).c_str());
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}
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static void Evaluate_CameraFunction(benchmark::State& state) {
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size_t stopCount = state.range(0);
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auto doc = createFunctionJSON(stopCount);
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conversion::Error error;
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optional<CameraFunction<float>> function = conversion::convert<CameraFunction<float>, JSValue>(doc, error);
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if (!function) {
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state.SkipWithError(error.message.c_str());
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}
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while(state.KeepRunning()) {
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float z = 24.0f * static_cast<float>(rand() % 100) / 100;
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function->evaluate(z);
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}
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state.SetLabel(std::to_string(stopCount).c_str());
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}
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BENCHMARK(Parse_CameraFunction)
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->Arg(1)->Arg(2)->Arg(4)->Arg(6)->Arg(8)->Arg(10)->Arg(12);
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BENCHMARK(Evaluate_CameraFunction)
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->Arg(1)->Arg(2)->Arg(4)->Arg(6)->Arg(8)->Arg(10)->Arg(12);
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