Move frontend-common to util/core
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Stenzek
272
src/util/win32_raw_input_source.cpp
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272
src/util/win32_raw_input_source.cpp
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// SPDX-FileCopyrightText: 2019-2022 Connor McLaughlin <stenzek@gmail.com>
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// SPDX-License-Identifier: (GPL-3.0 OR CC-BY-NC-ND-4.0)
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#include "win32_raw_input_source.h"
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#include "common/assert.h"
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#include "common/log.h"
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#include "common/string_util.h"
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#include "core/host.h"
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#include "core/system.h"
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#include "input_manager.h"
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#include <cmath>
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#include <hidusage.h>
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#include <malloc.h>
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Log_SetChannel(Win32RawInputSource);
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static const wchar_t* WINDOW_CLASS_NAME = L"Win32RawInputSource";
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static bool s_window_class_registered = false;
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static constexpr const u32 ALL_BUTTON_MASKS = RI_MOUSE_BUTTON_1_DOWN | RI_MOUSE_BUTTON_1_UP | RI_MOUSE_BUTTON_2_DOWN |
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RI_MOUSE_BUTTON_2_UP | RI_MOUSE_BUTTON_3_DOWN | RI_MOUSE_BUTTON_3_UP |
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RI_MOUSE_BUTTON_4_DOWN | RI_MOUSE_BUTTON_4_UP | RI_MOUSE_BUTTON_5_DOWN |
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RI_MOUSE_BUTTON_5_UP;
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Win32RawInputSource::Win32RawInputSource() = default;
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Win32RawInputSource::~Win32RawInputSource() = default;
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bool Win32RawInputSource::Initialize(SettingsInterface& si, std::unique_lock<std::mutex>& settings_lock)
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{
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if (!RegisterDummyClass())
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{
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Log_ErrorPrintf("(Win32RawInputSource) Failed to register dummy window class");
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return false;
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}
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if (!CreateDummyWindow())
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{
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Log_ErrorPrintf("(Win32RawInputSource) Failed to create dummy window");
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return false;
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}
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if (!OpenDevices())
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{
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Log_ErrorPrintf("(Win32RawInputSource) Failed to open devices");
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return false;
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}
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return true;
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}
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void Win32RawInputSource::UpdateSettings(SettingsInterface& si, std::unique_lock<std::mutex>& settings_lock) {}
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bool Win32RawInputSource::ReloadDevices()
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{
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return false;
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}
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void Win32RawInputSource::Shutdown()
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{
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CloseDevices();
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DestroyDummyWindow();
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}
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void Win32RawInputSource::PollEvents()
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{
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// noop, handled by message pump
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}
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std::vector<std::pair<std::string, std::string>> Win32RawInputSource::EnumerateDevices()
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{
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return {};
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}
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void Win32RawInputSource::UpdateMotorState(InputBindingKey key, float intensity) {}
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void Win32RawInputSource::UpdateMotorState(InputBindingKey large_key, InputBindingKey small_key, float large_intensity,
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float small_intensity)
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{
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}
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std::optional<InputBindingKey> Win32RawInputSource::ParseKeyString(const std::string_view& device,
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const std::string_view& binding)
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{
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return std::nullopt;
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}
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std::string Win32RawInputSource::ConvertKeyToString(InputBindingKey key)
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{
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return {};
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}
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std::vector<InputBindingKey> Win32RawInputSource::EnumerateMotors()
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{
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return {};
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}
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bool Win32RawInputSource::GetGenericBindingMapping(const std::string_view& device, GenericInputBindingMapping* mapping)
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{
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return {};
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}
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bool Win32RawInputSource::RegisterDummyClass()
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{
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if (s_window_class_registered)
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return true;
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WNDCLASSW wc = {};
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wc.hInstance = GetModuleHandleW(nullptr);
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wc.lpfnWndProc = DummyWindowProc;
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wc.lpszClassName = WINDOW_CLASS_NAME;
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return (RegisterClassW(&wc) != 0);
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}
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bool Win32RawInputSource::CreateDummyWindow()
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{
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m_dummy_window = CreateWindowExW(0, WINDOW_CLASS_NAME, WINDOW_CLASS_NAME, WS_OVERLAPPED, CW_USEDEFAULT, CW_USEDEFAULT,
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CW_USEDEFAULT, CW_USEDEFAULT, HWND_MESSAGE, NULL, GetModuleHandleW(nullptr), NULL);
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if (!m_dummy_window)
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return false;
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SetWindowLongPtrW(m_dummy_window, GWLP_USERDATA, reinterpret_cast<LONG_PTR>(this));
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return true;
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}
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void Win32RawInputSource::DestroyDummyWindow()
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{
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if (!m_dummy_window)
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return;
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DestroyWindow(m_dummy_window);
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m_dummy_window = {};
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}
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LRESULT CALLBACK Win32RawInputSource::DummyWindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
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{
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if (msg != WM_INPUT)
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return DefWindowProcW(hwnd, msg, wParam, lParam);
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UINT size = 0;
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GetRawInputData((HRAWINPUT)lParam, RID_INPUT, nullptr, &size, sizeof(RAWINPUTHEADER));
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PRAWINPUT data = static_cast<PRAWINPUT>(_alloca(size));
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GetRawInputData((HRAWINPUT)lParam, RID_INPUT, data, &size, sizeof(RAWINPUTHEADER));
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// we shouldn't get any WM_INPUT messages prior to SetWindowLongPtr(), so this'll be fine
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Win32RawInputSource* ris = reinterpret_cast<Win32RawInputSource*>(GetWindowLongPtrW(hwnd, GWLP_USERDATA));
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if (ris->ProcessRawInputEvent(data))
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return 0;
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// forward through to normal message processing
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return DefWindowProcW(hwnd, msg, wParam, lParam);
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}
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bool Win32RawInputSource::OpenDevices()
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{
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UINT num_devices = 0;
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if (GetRawInputDeviceList(nullptr, &num_devices, sizeof(RAWINPUTDEVICELIST)) == static_cast<UINT>(-1) ||
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num_devices == 0)
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return false;
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std::vector<RAWINPUTDEVICELIST> devices(num_devices);
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if (GetRawInputDeviceList(devices.data(), &num_devices, sizeof(RAWINPUTDEVICELIST)) == static_cast<UINT>(-1))
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return false;
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devices.resize(num_devices);
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for (const RAWINPUTDEVICELIST& rid : devices)
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{
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#if 0
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if (rid.dwType == RIM_TYPEKEYBOARD)
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m_num_keyboards++;
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#endif
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if (rid.dwType == RIM_TYPEMOUSE)
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m_mice.push_back({rid.hDevice});
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}
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Log_DevPrintf("(Win32RawInputSource) Found %u keyboards and %zu mice", m_num_keyboards, m_mice.size());
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// Grab all keyboard/mouse input.
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if (m_num_keyboards > 0)
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{
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const RAWINPUTDEVICE rrid = {HID_USAGE_PAGE_GENERIC, HID_USAGE_GENERIC_KEYBOARD, 0, m_dummy_window};
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if (!RegisterRawInputDevices(&rrid, 1, sizeof(rrid)))
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return false;
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}
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if (!m_mice.empty())
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{
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const RAWINPUTDEVICE rrid = {HID_USAGE_PAGE_GENERIC, HID_USAGE_GENERIC_MOUSE, 0, m_dummy_window};
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if (!RegisterRawInputDevices(&rrid, 1, sizeof(rrid)))
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return false;
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}
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return true;
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}
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void Win32RawInputSource::CloseDevices()
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{
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if (m_num_keyboards > 0)
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{
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const RAWINPUTDEVICE rrid = {HID_USAGE_PAGE_GENERIC, HID_USAGE_GENERIC_MOUSE, RIDEV_REMOVE, m_dummy_window};
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RegisterRawInputDevices(&rrid, 1, sizeof(rrid));
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m_num_keyboards = 0;
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}
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if (!m_mice.empty())
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{
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const RAWINPUTDEVICE rrid = {HID_USAGE_PAGE_GENERIC, HID_USAGE_GENERIC_KEYBOARD, RIDEV_REMOVE, m_dummy_window};
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RegisterRawInputDevices(&rrid, 1, sizeof(rrid));
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m_mice.clear();
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}
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}
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bool Win32RawInputSource::ProcessRawInputEvent(const RAWINPUT* event)
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{
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if (event->header.dwType == RIM_TYPEMOUSE)
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{
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const u32 mouse_index = 0;
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for (MouseState& state : m_mice)
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{
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if (state.device != event->header.hDevice)
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continue;
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const RAWMOUSE& rm = event->data.mouse;
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s32 dx = rm.lLastX;
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s32 dy = rm.lLastY;
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// handle absolute positioned devices
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if ((rm.usFlags & MOUSE_MOVE_ABSOLUTE) == MOUSE_MOVE_ABSOLUTE)
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{
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dx -= std::exchange(dx, state.last_x);
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dy -= std::exchange(dy, state.last_y);
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}
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unsigned long button_mask =
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(rm.usButtonFlags & (rm.usButtonFlags ^ std::exchange(state.button_state, rm.usButtonFlags))) &
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ALL_BUTTON_MASKS;
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// when the VM isn't running, allow events to run as normal (so we don't break the UI)
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if (System::GetState() != System::State::Running)
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return false;
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while (button_mask != 0)
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{
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unsigned long bit_index;
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_BitScanForward(&bit_index, button_mask);
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// these are ordered down..up for each button
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const u32 button_number = bit_index >> 1;
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const bool button_pressed = (bit_index & 1u) != 0;
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InputManager::InvokeEvents(InputManager::MakePointerButtonKey(mouse_index, button_number),
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static_cast<float>(button_pressed), GenericInputBinding::Unknown);
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button_mask &= ~(1u << bit_index);
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}
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if (dx != 0)
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InputManager::UpdatePointerRelativeDelta(mouse_index, InputPointerAxis::X, static_cast<float>(dx), true);
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if (dy != 0)
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InputManager::UpdatePointerRelativeDelta(mouse_index, InputPointerAxis::Y, static_cast<float>(dy), true);
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return true;
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}
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}
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return false;
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}
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std::unique_ptr<InputSource> InputSource::CreateWin32RawInputSource()
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{
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return std::make_unique<Win32RawInputSource>();
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}
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