mirror of
https://github.com/rfc2822/GfxTablet
synced 2025-10-03 09:39:16 +02:00
win32 driver 1.4 for GfxTablet with protocol v2 support
This commit is contained in:
christoph
parent
128060d724
commit
ca6c6be57b
12 changed files with 552 additions and 0 deletions
334
driver-win32/driver-win32.cpp
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334
driver-win32/driver-win32.cpp
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#include "stdafx.h"
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#include "driver-win32.h"
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#include <WinSock2.h>
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#pragma comment(lib, "Ws2_32.lib")
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#define MAX_LOADSTRING 100
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//#define SIMULATE_HOVER_TROUGH_LIGHT_TOUCH 1
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// Global Variables:
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HINSTANCE hInst; // current instance
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TCHAR szTitle[MAX_LOADSTRING]; // The title bar text
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TCHAR szWindowClass[MAX_LOADSTRING]; // the main window class name
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// Forward declarations of functions included in this code module:
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ATOM MyRegisterClass(HINSTANCE hInstance);
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BOOL InitInstance(HINSTANCE, int);
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LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
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INT_PTR CALLBACK About(HWND, UINT, WPARAM, LPARAM);
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int RunDriver();
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int APIENTRY _tWinMain(HINSTANCE hInstance,
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HINSTANCE hPrevInstance,
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LPTSTR lpCmdLine,
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int nCmdShow)
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{
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UNREFERENCED_PARAMETER(hPrevInstance);
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UNREFERENCED_PARAMETER(lpCmdLine);
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// TODO: Place code here.
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MSG msg;
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HACCEL hAccelTable;
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// Initialize global strings
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LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
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LoadString(hInstance, IDC_DRIVERWIN32, szWindowClass, MAX_LOADSTRING);
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MyRegisterClass(hInstance);
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// Perform application initialization:
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if (!InitInstance (hInstance, nCmdShow))
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{
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return FALSE;
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}
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hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_DRIVERWIN32));
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//
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PostMessage(NULL, WM_USER+1,0,0);
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// Main message loop:
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while (GetMessage(&msg, NULL, 0, 0))
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{
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if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
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{
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TranslateMessage(&msg);
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DispatchMessage(&msg);
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}
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}
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return (int) msg.wParam;
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}
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ATOM MyRegisterClass(HINSTANCE hInstance)
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{
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WNDCLASSEX wcex;
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wcex.cbSize = sizeof(WNDCLASSEX);
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wcex.style = CS_HREDRAW | CS_VREDRAW;
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wcex.lpfnWndProc = WndProc;
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wcex.cbClsExtra = 0;
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wcex.cbWndExtra = 0;
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wcex.hInstance = hInstance;
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wcex.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_DRIVERWIN32));
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wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
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wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
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wcex.lpszMenuName = MAKEINTRESOURCE(IDC_DRIVERWIN32);
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wcex.lpszClassName = szWindowClass;
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wcex.hIconSm = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));
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return RegisterClassEx(&wcex);
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}
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#define WM_USER_SHELLICON (WM_USER+1)
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NOTIFYICONDATA nidApp;
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void CreateTrayIcon(HWND hWnd)
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{
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nidApp.cbSize = sizeof(NOTIFYICONDATA);
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nidApp.hWnd = (HWND) hWnd;
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nidApp.uID = IDI_DRIVERWIN32;
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nidApp.uFlags = NIF_ICON | NIF_MESSAGE | NIF_TIP;
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nidApp.hIcon = LoadIcon(hInst, MAKEINTRESOURCE(IDI_DRIVERWIN32) );
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nidApp.uCallbackMessage = WM_USER_SHELLICON;
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_tcscpy( nidApp.szTip, _T("GfxTablet windows driver") );
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Shell_NotifyIcon(NIM_ADD, &nidApp);
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}
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void RemoveTrayIcon(HWND hWnd)
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{
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Shell_NotifyIcon(NIM_DELETE, &nidApp);
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}
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DWORD dwDriverThreadId = 0;
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DWORD WINAPI DriverThreadStart(LPVOID lpThreadParameter)
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{
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return RunDriver();
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}
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HWND hWnd = NULL;
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BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
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{
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hInst = hInstance; // Store instance handle in our global variable
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hWnd = CreateWindow(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW,
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CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);
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if (!hWnd)
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{
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return FALSE;
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}
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CreateTrayIcon(hWnd);
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CreateThread(NULL, 500000, DriverThreadStart, NULL, 0, &dwDriverThreadId);
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return TRUE;
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}
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void ShowTrayIconContextMenu(HWND hWnd)
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{
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POINT lpClickPoint;
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UINT uFlag = MF_BYPOSITION|MF_STRING;
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GetCursorPos(&lpClickPoint);
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HMENU hPopMenu = CreatePopupMenu();
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InsertMenu(hPopMenu,0xFFFFFFFF,MF_BYPOSITION|MF_STRING,IDM_EXIT,_T("Exit"));
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TrackPopupMenu(hPopMenu,TPM_LEFTALIGN|TPM_LEFTBUTTON|TPM_BOTTOMALIGN,
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lpClickPoint.x, lpClickPoint.y,0,hWnd,NULL);
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}
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LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
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{
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int wmId, wmEvent;
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PAINTSTRUCT ps;
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HDC hdc;
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switch (message)
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{
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case WM_USER_SHELLICON:
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switch(LOWORD(lParam))
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{
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case WM_RBUTTONDOWN:
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ShowTrayIconContextMenu(hWnd);
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}
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break;
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case WM_COMMAND:
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wmId = LOWORD(wParam);
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wmEvent = HIWORD(wParam);
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// Parse the menu selections:
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switch (wmId)
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{
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case IDM_EXIT:
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DestroyWindow(hWnd);
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break;
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default:
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return DefWindowProc(hWnd, message, wParam, lParam);
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}
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break;
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case WM_PAINT:
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hdc = BeginPaint(hWnd, &ps);
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EndPaint(hWnd, &ps);
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break;
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case WM_DESTROY:
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RemoveTrayIcon(hWnd);
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PostQuitMessage(0);
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break;
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default:
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return DefWindowProc(hWnd, message, wParam, lParam);
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}
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return 0;
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}
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int udp_socket;
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void die(TCHAR* fmt, ...)
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{
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va_list args;
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va_start(args,fmt);
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TCHAR msgbuf[4096];
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_vsntprintf_s(msgbuf, _countof(msgbuf), fmt, args);
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MessageBox(NULL, msgbuf, _T("GfxTablet Win32 driver error"), MB_ICONERROR|MB_OK);
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RemoveTrayIcon(hWnd);
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ExitProcess(EXIT_FAILURE);
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}
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int prepare_socket()
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{
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int s;
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struct sockaddr_in addr;
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WSADATA wsadata;
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WSAStartup(WINSOCK_VERSION, &wsadata);
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if ((s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) == -1)
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die(_T("error: prepare_socket()"));
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ZeroMemory(&addr, sizeof(struct sockaddr_in));
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addr.sin_family = AF_INET;
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addr.sin_port = htons(GFXTABLET_PORT);
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addr.sin_addr.s_addr = htonl(INADDR_ANY);
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if (bind(s, (struct sockaddr *)&addr, sizeof(addr)) == -1)
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{
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DWORD dwErr = WSAGetLastError();
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if (dwErr == WSAEADDRINUSE)
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die(_T("error: prepare_socket(). Port already in use") );
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else
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die(_T("error: prepare_socket(). Error = 0x%08x"), dwErr );
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}
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return s;
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}
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void quit(int signal)
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{
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closesocket(udp_socket);
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}
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int RunDriver(void)
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{
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int device;
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struct event_packet ev_pkt;
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udp_socket = prepare_socket();
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printf("GfxTablet driver (protocol version %u) is ready and listening on 0.0.0.0:%u (UDP)\n"
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"Hint: Make sure that this port is not blocked by your firewall.\n", PROTOCOL_VERSION, GFXTABLET_PORT);
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signal(SIGINT, quit);
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signal(SIGTERM, quit);
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BOOL isDown = false;
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while (recv(udp_socket, (char*)&ev_pkt, sizeof(ev_pkt), 0) >= 9) { // every packet has at least 9 bytes
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printf("."); fflush(0);
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if (memcmp(ev_pkt.signature, "GfxTablet", 9) != 0) {
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fprintf(stderr, "\nGot unknown packet on port %i, ignoring\n", GFXTABLET_PORT);
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continue;
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}
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ev_pkt.version = ntohs(ev_pkt.version);
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if (ev_pkt.version != PROTOCOL_VERSION) {
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fprintf(stderr, "\nGfxTablet app speaks protocol version %i but driver speaks version %i, please update\n",
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ev_pkt.version, PROTOCOL_VERSION);
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break;
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}
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ev_pkt.x = ntohs(ev_pkt.x);
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ev_pkt.y = ntohs(ev_pkt.y);
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ev_pkt.pressure = ntohs(ev_pkt.pressure);
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printf("x: %hi, y: %hi, pressure: %hi\n", ev_pkt.x, ev_pkt.y, ev_pkt.pressure);
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//windows uses 0-65535, while GfxTablet uses 0-32767
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int absoluteX = ((int)ev_pkt.x)*2;
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int absoluteY = ((int)ev_pkt.y)*2;
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INPUT inputs[1];
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ZeroMemory(&inputs[0],sizeof(inputs));
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inputs[0].type = INPUT_MOUSE;
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inputs[0].mi.dx = absoluteX;
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inputs[0].mi.dy = absoluteY;
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inputs[0].mi.dwFlags = MOUSEEVENTF_ABSOLUTE;
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//no support for pressure on windows :-((
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//This is only possible with an HID miniport driver.
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//GIMP uses DirectInput - probably the HID miniport driver would be visible trough HID
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//If not a DirectInput driver would be necessary too
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//send_event(device, EV_ABS, ABS_PRESSURE, ev_pkt.pressure);
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#if SIMULATE_HOVER_TROUGH_LIGHT_TOUCH
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//hack: ignores EVENT_TYPE_BUTTON (android touch events), but generates them
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//when pressure is over a specific limit, so it is possible to move the finger
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//around the tablet without drawing
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if(ev_pkt.type==EVENT_TYPE_BUTTON && ev_pkt.down)
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{
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ev_pkt.type=EVENT_TYPE_MOTION;
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}
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else if(ev_pkt.type==EVENT_TYPE_MOTION && ev_pkt.pressure>18000)
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{
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if (!isDown)
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ev_pkt.type=EVENT_TYPE_BUTTON;
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}
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#endif
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switch (ev_pkt.type) {
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case EVENT_TYPE_MOTION:
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inputs[0].mi.dwFlags |= MOUSEEVENTF_MOVE;
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SendInput(1, &inputs[0], sizeof(inputs[0]));
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break;
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case EVENT_TYPE_BUTTON:
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if (ev_pkt.button == 0)
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{
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inputs[0].mi.dwFlags = MOUSEEVENTF_ABSOLUTE|MOUSEEVENTF_MOVE;
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SendInput(1, &inputs[0], sizeof(inputs[0]));
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}
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if (ev_pkt.down)
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{
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inputs[0].mi.dwFlags = MOUSEEVENTF_ABSOLUTE|MOUSEEVENTF_LEFTDOWN;
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isDown = true;
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}
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else
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{
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inputs[0].mi.dwFlags = MOUSEEVENTF_ABSOLUTE|MOUSEEVENTF_LEFTUP;
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isDown = false;
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}
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SendInput(1, &inputs[0], sizeof(inputs[0]));
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break;
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}
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}
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closesocket(udp_socket);
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printf("GfxTablet driver shut down gracefully\n");
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return 0;
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}
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