Add system time configuration (#4043)

* Add setting to switch between a fixed start time and the system time

Add clock settings to SDL

Make clock configureable in qt

Add a SharedPage handler class

Init shared_page_handler for tests

src/core/hle/kernel/kernel.cpp

@@ -19,7 +19,6 @@ unsigned int Object::next_object_id;
 /// Initialize the kernel
 void Init(u32 system_mode) {
     ConfigMem::Init();
-    SharedPage::Init();
 
     Kernel::MemoryInit(system_mode);
 

src/core/hle/kernel/memory.cpp

@@ -11,11 +11,11 @@
 #include "common/assert.h"
 #include "common/common_types.h"
 #include "common/logging/log.h"
+#include "core/core.h"
 #include "core/hle/config_mem.h"
 #include "core/hle/kernel/memory.h"
 #include "core/hle/kernel/vm_manager.h"
 #include "core/hle/result.h"
-#include "core/hle/shared_page.h"
 #include "core/memory.h"
 #include "core/memory_setup.h"
 
@@ -160,11 +160,14 @@ void MapSharedPages(VMManager& address_space) {
                            .Unwrap();
     address_space.Reprotect(cfg_mem_vma, VMAPermission::Read);
 
-    auto shared_page_vma = address_space
-                               .MapBackingMemory(Memory::SHARED_PAGE_VADDR,
-                                                 reinterpret_cast<u8*>(&SharedPage::shared_page),
-                                                 Memory::SHARED_PAGE_SIZE, MemoryState::Shared)
-                               .Unwrap();
+    auto shared_page_vma =
+        address_space
+            .MapBackingMemory(
+                Memory::SHARED_PAGE_VADDR,
+                reinterpret_cast<u8*>(
+                    &Core::System::GetInstance().GetSharedPageHandler()->GetSharedPage()),
+                Memory::SHARED_PAGE_SIZE, MemoryState::Shared)
+            .Unwrap();
     address_space.Reprotect(shared_page_vma, VMAPermission::Read);
 }
 

src/core/hle/service/gsp/gsp_gpu.cpp

@@ -13,7 +13,6 @@
 #include "core/hle/kernel/shared_memory.h"
 #include "core/hle/result.h"
 #include "core/hle/service/gsp/gsp_gpu.h"
-#include "core/hle/shared_page.h"
 #include "core/hw/gpu.h"
 #include "core/hw/hw.h"
 #include "core/hw/lcd.h"
@@ -732,7 +731,8 @@ void GSP_GPU::SetLedForceOff(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp(ctx, 0x1C, 1, 0);
 
     u8 state = rp.Pop<u8>();
-    SharedPage::Set3DLed(state);
+
+    Core::System::GetInstance().GetSharedPageHandler()->Set3DLed(state);
 
     IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
     rb.Push(RESULT_SUCCESS);

src/core/hle/service/nwm/nwm_uds.cpp

@@ -14,6 +14,7 @@
 #include <cryptopp/osrng.h>
 #include "common/common_types.h"
 #include "common/logging/log.h"
+#include "core/core.h"
 #include "core/core_timing.h"
 #include "core/hle/ipc_helpers.h"
 #include "core/hle/kernel/event.h"
@@ -24,7 +25,6 @@
 #include "core/hle/service/nwm/uds_beacon.h"
 #include "core/hle/service/nwm/uds_connection.h"
 #include "core/hle/service/nwm/uds_data.h"
-#include "core/hle/shared_page.h"
 #include "core/memory.h"
 #include "network/network.h"
 
@@ -1334,8 +1334,10 @@ NWM_UDS::NWM_UDS() : ServiceFramework("nwm::UDS") {
             mac = room_member->GetMacAddress();
         }
     }
-    SharedPage::SetMacAddress(mac);
-    SharedPage::SetWifiLinkLevel(SharedPage::WifiLinkLevel::BEST);
+
+    Core::System::GetInstance().GetSharedPageHandler()->SetMacAddress(mac);
+    Core::System::GetInstance().GetSharedPageHandler()->SetWifiLinkLevel(
+        SharedPage::WifiLinkLevel::BEST);
 }
 
 NWM_UDS::~NWM_UDS() {

src/core/hle/shared_page.cpp

@@ -4,7 +4,6 @@
 
 #include <chrono>
 #include <cstring>
-#include <ctime>
 #include "core/core_timing.h"
 #include "core/hle/service/ptm/ptm.h"
 #include "core/hle/shared_page.h"
@@ -14,13 +13,53 @@
 
 namespace SharedPage {
 
-SharedPageDef shared_page;
+static std::chrono::seconds GetInitTime() {
+    switch (Settings::values.init_clock) {
+    case Settings::InitClock::SystemTime: {
+        auto now = std::chrono::system_clock::now();
+        // If the system time is in daylight saving, we give an additional hour to console time
+        std::time_t now_time_t = std::chrono::system_clock::to_time_t(now);
+        std::tm* now_tm = std::localtime(&now_time_t);
+        if (now_tm && now_tm->tm_isdst > 0)
+            now = now + std::chrono::hours(1);
+        return std::chrono::duration_cast<std::chrono::seconds>(now.time_since_epoch());
+    }
+    case Settings::InitClock::FixedTime:
+        return std::chrono::seconds(Settings::values.init_time);
+    }
+}
 
-static CoreTiming::EventType* update_time_event;
+Handler::Handler() {
+    std::memset(&shared_page, 0, sizeof(shared_page));
+
+    shared_page.running_hw = 0x1; // product
+
+    // Some games wait until this value becomes 0x1, before asking running_hw
+    shared_page.unknown_value = 0x1;
+
+    // Set to a completely full battery
+    shared_page.battery_state.charge_level.Assign(
+        static_cast<u8>(Service::PTM::ChargeLevels::CompletelyFull));
+    shared_page.battery_state.is_adapter_connected.Assign(1);
+    shared_page.battery_state.is_charging.Assign(1);
+
+    init_time = GetInitTime();
+
+    using namespace std::placeholders;
+    update_time_event = CoreTiming::RegisterEvent(
+        "SharedPage::UpdateTimeCallback", std::bind(&Handler::UpdateTimeCallback, this, _1, _2));
+    CoreTiming::ScheduleEvent(0, update_time_event);
+
+    float slidestate =
+        Settings::values.toggle_3d ? (float_le)Settings::values.factor_3d / 100 : 0.0f;
+    shared_page.sliderstate_3d = slidestate;
+}
 
 /// Gets system time in 3DS format. The epoch is Jan 1900, and the unit is millisecond.
-static u64 GetSystemTime() {
-    auto now = std::chrono::system_clock::now();
+u64 Handler::GetSystemTime() const {
+    std::chrono::milliseconds now =
+        init_time +
+        std::chrono::duration_cast<std::chrono::milliseconds>(CoreTiming::GetGlobalTimeUs());
 
     // 3DS system does't allow user to set a time before Jan 1 2000,
     // so we use it as an auxiliary epoch to calculate the console time.
@@ -32,27 +71,21 @@ static u64 GetSystemTime() {
     epoch_tm.tm_mon = 0;
     epoch_tm.tm_year = 100;
     epoch_tm.tm_isdst = 0;
-    auto epoch = std::chrono::system_clock::from_time_t(std::mktime(&epoch_tm));
+    u64 epoch = std::mktime(&epoch_tm) * 1000;
 
     // 3DS console time uses Jan 1 1900 as internal epoch,
     // so we use the milliseconds between 1900 and 2000 as base console time
     u64 console_time = 3155673600000ULL;
 
     // Only when system time is after 2000, we set it as 3DS system time
-    if (now > epoch) {
-        console_time += std::chrono::duration_cast<std::chrono::milliseconds>(now - epoch).count();
+    if (now.count() > epoch) {
+        console_time += (now.count() - epoch);
     }
 
-    // If the system time is in daylight saving, we give an additional hour to console time
-    std::time_t now_time_t = std::chrono::system_clock::to_time_t(now);
-    std::tm* now_tm = std::localtime(&now_time_t);
-    if (now_tm && now_tm->tm_isdst > 0)
-        console_time += 60 * 60 * 1000;
-
     return console_time;
 }
 
-static void UpdateTimeCallback(u64 userdata, s64 cycles_late) {
+void Handler::UpdateTimeCallback(u64 userdata, int cycles_late) {
     DateTime& date_time =
         shared_page.date_time_counter % 2 ? shared_page.date_time_0 : shared_page.date_time_1;
 
@@ -67,39 +100,20 @@ static void UpdateTimeCallback(u64 userdata, s64 cycles_late) {
     CoreTiming::ScheduleEvent(msToCycles(60 * 60 * 1000) - cycles_late, update_time_event);
 }
 
-void Init() {
-    std::memset(&shared_page, 0, sizeof(shared_page));
-
-    shared_page.running_hw = 0x1; // product
-
-    // Some games wait until this value becomes 0x1, before asking running_hw
-    shared_page.unknown_value = 0x1;
-
-    // Set to a completely full battery
-    shared_page.battery_state.charge_level.Assign(
-        static_cast<u8>(Service::PTM::ChargeLevels::CompletelyFull));
-    shared_page.battery_state.is_adapter_connected.Assign(1);
-    shared_page.battery_state.is_charging.Assign(1);
-
-    update_time_event =
-        CoreTiming::RegisterEvent("SharedPage::UpdateTimeCallback", UpdateTimeCallback);
-    CoreTiming::ScheduleEvent(0, update_time_event);
-
-    float slidestate =
-        Settings::values.toggle_3d ? (float_le)Settings::values.factor_3d / 100 : 0.0f;
-    shared_page.sliderstate_3d = slidestate;
-}
-
-void SetMacAddress(const MacAddress& addr) {
+void Handler::SetMacAddress(const MacAddress& addr) {
     std::memcpy(shared_page.wifi_macaddr, addr.data(), sizeof(MacAddress));
 }
 
-void SetWifiLinkLevel(WifiLinkLevel level) {
+void Handler::SetWifiLinkLevel(WifiLinkLevel level) {
     shared_page.wifi_link_level = static_cast<u8>(level);
 }
 
-void Set3DLed(u8 state) {
+void Handler::Set3DLed(u8 state) {
     shared_page.ledstate_3d = state;
 }
 
+SharedPageDef& Handler::GetSharedPage() {
+    return shared_page;
+}
+
 } // namespace SharedPage

src/core/hle/shared_page.h

@@ -10,6 +10,9 @@
  * write access, according to 3dbrew; this is not emulated)
  */
 
+#include <chrono>
+#include <ctime>
+#include <memory>
 #include "common/bit_field.h"
 #include "common/common_funcs.h"
 #include "common/common_types.h"
@@ -18,6 +21,10 @@
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 
+namespace CoreTiming {
+struct EventType;
+}
+
 namespace SharedPage {
 
 // See http://3dbrew.org/wiki/Configuration_Memory#Shared_Memory_Page_For_ARM11_Processes
@@ -74,14 +81,25 @@ struct SharedPageDef {
 static_assert(sizeof(SharedPageDef) == Memory::SHARED_PAGE_SIZE,
               "Shared page structure size is wrong");
 
-extern SharedPageDef shared_page;
+class Handler {
+public:
+    Handler();
 
-void Init();
+    void SetMacAddress(const MacAddress&);
 
-void SetMacAddress(const MacAddress&);
+    void SetWifiLinkLevel(WifiLinkLevel);
 
-void SetWifiLinkLevel(WifiLinkLevel);
+    void Set3DLed(u8);
 
-void Set3DLed(u8);
+    SharedPageDef& GetSharedPage();
+
+private:
+    u64 GetSystemTime() const;
+    void UpdateTimeCallback(u64 userdata, int cycles_late);
+    CoreTiming::EventType* update_time_event;
+    std::chrono::seconds init_time;
+
+    SharedPageDef shared_page;
+};
 
 } // namespace SharedPage