1 files changed, 58 insertions, 0 deletions

diff --git a/src/core/hle/service/hid/controllers/touchscreen.cpp b/src/core/hle/service/hid/controllers/touchscreen.cpp
new file mode 100644
index 000000000..b675dec8e
--- /dev/null
+++ b/src/core/hle/service/hid/controllers/touchscreen.cpp
@@ -0,0 +1,58 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/common_types.h"
+#include "common/swap.h"
+#include "core/core_timing.h"
+#include "core/frontend/emu_window.h"
+#include "core/frontend/input.h"
+#include "core/hle/service/hid/controllers/touchscreen.h"
+#include "core/settings.h"
+
+namespace Service::HID {
+constexpr size_t SHARED_MEMORY_OFFSET = 0x400;
+void Controller_Touchscreen::OnInit() {}
+void Controller_Touchscreen::OnRelease() {}
+void Controller_Touchscreen::OnUpdate(u8* data, size_t size) {
+    shared_memory.header.timestamp = CoreTiming::GetTicks();
+    shared_memory.header.total_entry_count = 17;
+
+    if (!IsControllerActivated()) {
+        shared_memory.header.entry_count = 0;
+        shared_memory.header.last_entry_index = 0;
+        return;
+    }
+    shared_memory.header.entry_count = 16;
+
+    auto& last_entry = shared_memory.shared_memory_entries[shared_memory.header.last_entry_index];
+    shared_memory.header.last_entry_index = (shared_memory.header.last_entry_index + 1) % 17;
+    auto& cur_entry = shared_memory.shared_memory_entries[shared_memory.header.last_entry_index];
+
+    cur_entry.sampling_number = last_entry.sampling_number + 1;
+    cur_entry.sampling_number2 = cur_entry.sampling_number;
+
+    auto [x, y, pressed] = touch_device->GetStatus();
+    auto& touch_entry = cur_entry.states[0];
+    if (pressed) {
+        touch_entry.x = static_cast<u16>(x * Layout::ScreenUndocked::Width);
+        touch_entry.y = static_cast<u16>(y * Layout::ScreenUndocked::Height);
+        touch_entry.diameter_x = 15;
+        touch_entry.diameter_y = 15;
+        touch_entry.rotation_angle = 0;
+        const u64 tick = CoreTiming::GetTicks();
+        touch_entry.delta_time = tick - last_touch;
+        last_touch = tick;
+        touch_entry.finger = 0;
+        cur_entry.entry_count = 1;
+    } else {
+        cur_entry.entry_count = 0;
+    }
+
+    std::memcpy(data + SHARED_MEMORY_OFFSET, &shared_memory, sizeof(TouchScreenSharedMemory));
+}
+
+void Controller_Touchscreen::OnLoadInputDevices() {
+    touch_device = Input::CreateDevice<Input::TouchDevice>(Settings::values.touch_device);
+}
+}; // namespace Service::HID