1 files changed, 63 insertions, 0 deletions

diff --git a/src/core/hle/service/hid/controllers/debug_mouse.cpp b/src/core/hle/service/hid/controllers/debug_mouse.cpp
new file mode 100644
index 000000000..f2f1a27f8
--- /dev/null
+++ b/src/core/hle/service/hid/controllers/debug_mouse.cpp
@@ -0,0 +1,63 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core_timing.h"
+#include "core/frontend/emu_window.h"
+#include "core/hid/emulated_devices.h"
+#include "core/hid/hid_core.h"
+#include "core/hle/service/hid/controllers/applet_resource.h"
+#include "core/hle/service/hid/controllers/debug_mouse.h"
+#include "core/hle/service/hid/controllers/types/shared_memory_format.h"
+
+namespace Service::HID {
+
+DebugMouse::DebugMouse(Core::HID::HIDCore& hid_core_) : ControllerBase{hid_core_} {
+    emulated_devices = hid_core.GetEmulatedDevices();
+}
+
+DebugMouse::~DebugMouse() = default;
+
+void DebugMouse::OnInit() {}
+void DebugMouse::OnRelease() {}
+
+void DebugMouse::OnUpdate(const Core::Timing::CoreTiming& core_timing) {
+    const u64 aruid = applet_resource->GetActiveAruid();
+    auto* data = applet_resource->GetAruidData(aruid);
+
+    if (data == nullptr) {
+        return;
+    }
+
+    MouseSharedMemoryFormat& shared_memory = data->shared_memory_format->debug_mouse;
+
+    if (!IsControllerActivated()) {
+        shared_memory.mouse_lifo.buffer_count = 0;
+        shared_memory.mouse_lifo.buffer_tail = 0;
+        return;
+    }
+
+    next_state = {};
+
+    const auto& last_entry = shared_memory.mouse_lifo.ReadCurrentEntry().state;
+    next_state.sampling_number = last_entry.sampling_number + 1;
+
+    if (Settings::values.mouse_enabled) {
+        const auto& mouse_button_state = emulated_devices->GetMouseButtons();
+        const auto& mouse_position_state = emulated_devices->GetMousePosition();
+        const auto& mouse_wheel_state = emulated_devices->GetMouseWheel();
+        next_state.attribute.is_connected.Assign(1);
+        next_state.x = static_cast<s32>(mouse_position_state.x * Layout::ScreenUndocked::Width);
+        next_state.y = static_cast<s32>(mouse_position_state.y * Layout::ScreenUndocked::Height);
+        next_state.delta_x = next_state.x - last_entry.x;
+        next_state.delta_y = next_state.y - last_entry.y;
+        next_state.delta_wheel_x = mouse_wheel_state.x - last_mouse_wheel_state.x;
+        next_state.delta_wheel_y = mouse_wheel_state.y - last_mouse_wheel_state.y;
+
+        last_mouse_wheel_state = mouse_wheel_state;
+        next_state.button = mouse_button_state;
+    }
+
+    shared_memory.mouse_lifo.WriteNextEntry(next_state);
+}
+
+} // namespace Service::HID