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-rw-r--r--src/tests/core/host_timing.cpp142
1 files changed, 142 insertions, 0 deletions
diff --git a/src/tests/core/host_timing.cpp b/src/tests/core/host_timing.cpp
new file mode 100644
index 000000000..556254098
--- /dev/null
+++ b/src/tests/core/host_timing.cpp
@@ -0,0 +1,142 @@
+// Copyright 2016 Dolphin Emulator Project / 2017 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#include <catch2/catch.hpp>
+
+#include <array>
+#include <bitset>
+#include <cstdlib>
+#include <memory>
+#include <string>
+
+#include "common/file_util.h"
+#include "core/core.h"
+#include "core/host_timing.h"
+
+// Numbers are chosen randomly to make sure the correct one is given.
+static constexpr std::array<u64, 5> CB_IDS{{42, 144, 93, 1026, UINT64_C(0xFFFF7FFFF7FFFF)}};
+static constexpr int MAX_SLICE_LENGTH = 10000; // Copied from CoreTiming internals
+static constexpr std::array<u64, 5> calls_order{{2, 0, 1, 4, 3}};
+static std::array<s64, 5> delays{};
+
+static std::bitset<CB_IDS.size()> callbacks_ran_flags;
+static u64 expected_callback = 0;
+
+template <unsigned int IDX>
+void HostCallbackTemplate(u64 userdata, s64 nanoseconds_late) {
+ static_assert(IDX < CB_IDS.size(), "IDX out of range");
+ callbacks_ran_flags.set(IDX);
+ REQUIRE(CB_IDS[IDX] == userdata);
+ REQUIRE(CB_IDS[IDX] == CB_IDS[calls_order[expected_callback]]);
+ delays[IDX] = nanoseconds_late;
+ ++expected_callback;
+}
+
+struct ScopeInit final {
+ ScopeInit() {
+ core_timing.Initialize();
+ }
+ ~ScopeInit() {
+ core_timing.Shutdown();
+ }
+
+ Core::HostTiming::CoreTiming core_timing;
+};
+
+#pragma optimize("", off)
+
+static u64 TestTimerSpeed(Core::HostTiming::CoreTiming& core_timing) {
+ u64 start = core_timing.GetGlobalTimeNs().count();
+ u64 placebo = 0;
+ for (std::size_t i = 0; i < 1000; i++) {
+ placebo += core_timing.GetGlobalTimeNs().count();
+ }
+ u64 end = core_timing.GetGlobalTimeNs().count();
+ return (end - start);
+}
+
+#pragma optimize("", on)
+
+TEST_CASE("HostTiming[BasicOrder]", "[core]") {
+ ScopeInit guard;
+ auto& core_timing = guard.core_timing;
+ std::vector<std::shared_ptr<Core::HostTiming::EventType>> events{
+ Core::HostTiming::CreateEvent("callbackA", HostCallbackTemplate<0>),
+ Core::HostTiming::CreateEvent("callbackB", HostCallbackTemplate<1>),
+ Core::HostTiming::CreateEvent("callbackC", HostCallbackTemplate<2>),
+ Core::HostTiming::CreateEvent("callbackD", HostCallbackTemplate<3>),
+ Core::HostTiming::CreateEvent("callbackE", HostCallbackTemplate<4>),
+ };
+
+ expected_callback = 0;
+
+ core_timing.SyncPause(true);
+
+ u64 one_micro = 1000U;
+ for (std::size_t i = 0; i < events.size(); i++) {
+ u64 order = calls_order[i];
+ core_timing.ScheduleEvent(i * one_micro + 100U, events[order], CB_IDS[order]);
+ }
+ /// test pause
+ REQUIRE(callbacks_ran_flags.none());
+
+ core_timing.Pause(false); // No need to sync
+
+ while (core_timing.HasPendingEvents())
+ ;
+
+ REQUIRE(callbacks_ran_flags.all());
+
+ for (std::size_t i = 0; i < delays.size(); i++) {
+ const double delay = static_cast<double>(delays[i]);
+ const double micro = delay / 1000.0f;
+ const double mili = micro / 1000.0f;
+ printf("HostTimer Pausing Delay[%zu]: %.3f %.6f\n", i, micro, mili);
+ }
+}
+
+TEST_CASE("HostTiming[BasicOrderNoPausing]", "[core]") {
+ ScopeInit guard;
+ auto& core_timing = guard.core_timing;
+ std::vector<std::shared_ptr<Core::HostTiming::EventType>> events{
+ Core::HostTiming::CreateEvent("callbackA", HostCallbackTemplate<0>),
+ Core::HostTiming::CreateEvent("callbackB", HostCallbackTemplate<1>),
+ Core::HostTiming::CreateEvent("callbackC", HostCallbackTemplate<2>),
+ Core::HostTiming::CreateEvent("callbackD", HostCallbackTemplate<3>),
+ Core::HostTiming::CreateEvent("callbackE", HostCallbackTemplate<4>),
+ };
+
+ core_timing.SyncPause(true);
+ core_timing.SyncPause(false);
+
+ expected_callback = 0;
+
+ u64 start = core_timing.GetGlobalTimeNs().count();
+ u64 one_micro = 1000U;
+ for (std::size_t i = 0; i < events.size(); i++) {
+ u64 order = calls_order[i];
+ core_timing.ScheduleEvent(i * one_micro + 100U, events[order], CB_IDS[order]);
+ }
+ u64 end = core_timing.GetGlobalTimeNs().count();
+ const double scheduling_time = static_cast<double>(end - start);
+ const double timer_time = static_cast<double>(TestTimerSpeed(core_timing));
+
+ while (core_timing.HasPendingEvents())
+ ;
+
+ REQUIRE(callbacks_ran_flags.all());
+
+ for (std::size_t i = 0; i < delays.size(); i++) {
+ const double delay = static_cast<double>(delays[i]);
+ const double micro = delay / 1000.0f;
+ const double mili = micro / 1000.0f;
+ printf("HostTimer No Pausing Delay[%zu]: %.3f %.6f\n", i, micro, mili);
+ }
+
+ const double micro = scheduling_time / 1000.0f;
+ const double mili = micro / 1000.0f;
+ printf("HostTimer No Pausing Scheduling Time: %.3f %.6f\n", micro, mili);
+ printf("HostTimer No Pausing Timer Time: %.3f %.6f\n", timer_time / 1000.f,
+ timer_time / 1000000.f);
+}