Exemplo n.º 1
0
void
WIN_InitMouse(_THIS)
{
    int index = 0;
    RAWINPUTDEVICELIST *deviceList = NULL;
    int devCount = 0;
    int i;
    int tmp = 0;
    char *buffer = NULL;
    char *tab = "wacom";        /* since windows does't give us handles to tablets, we have to detect a tablet by it's name */
    const char *rdp = "rdp_mou";
    SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;

/* WinCE has no RawInputDeviceList */
#ifdef _WIN32_WCE
    SDL_Mouse mouse;
    SDL_zero(mouse);
    mouse.id = 0;
    SDL_AddMouse(&mouse, "Stylus", 0, 0, 1);
#else
    /* we're checking for the number of rawinput devices */
    if (GetRawInputDeviceList(NULL, &devCount, sizeof(RAWINPUTDEVICELIST))) {
        return;
    }

    deviceList = SDL_malloc(sizeof(RAWINPUTDEVICELIST) * devCount);

    /* we're getting the raw input device list */
    GetRawInputDeviceList(deviceList, &devCount, sizeof(RAWINPUTDEVICELIST));
    mice = SDL_malloc(devCount * sizeof(HANDLE));

    /* we're getting the details of the devices */
    for (i = 0; i < devCount; ++i) {
        int is_rdp = 0;
        int j;
        int k;
        char *default_device_name = "Pointing device xx";
        const char *reg_key_root = "System\\CurrentControlSet\\Enum\\";
        char *device_name = SDL_malloc(256 * sizeof(char));
        char *key_name = NULL;
        char *tmp_name = NULL;
        LONG rc = 0;
        HKEY hkey;
        DWORD regtype = REG_SZ;
        DWORD out = 256 * sizeof(char);
        SDL_Mouse mouse;
        int l;
        if (deviceList[i].dwType != RIM_TYPEMOUSE) {    /* if a device isn't a mouse type we don't want it */
            continue;
        }
        if (GetRawInputDeviceInfoA
            (deviceList[i].hDevice, RIDI_DEVICENAME, NULL, &tmp) < 0) {
            continue;
        }
        buffer = SDL_malloc((tmp + 1) * sizeof(char));
        key_name =
            SDL_malloc((tmp + SDL_strlen(reg_key_root) + 1) * sizeof(char));

        /* we're getting the device registry path and polishing it to get it's name,
           surely there must be an easier way, but we haven't found it yet */
        if (GetRawInputDeviceInfoA
            (deviceList[i].hDevice, RIDI_DEVICENAME, buffer, &tmp) < 0) {
            continue;
        }
        buffer += 4;
        tmp -= 4;
        tmp_name = buffer;
        for (j = 0; j < tmp; ++j) {
            if (*tmp_name == '#') {
                *tmp_name = '\\';
            }

            else if (*tmp_name == '{') {
                break;
            }
            ++tmp_name;
        }
        *tmp_name = '\0';
        SDL_memcpy(key_name, reg_key_root, SDL_strlen(reg_key_root));
        SDL_memcpy(key_name + (SDL_strlen(reg_key_root)), buffer, j + 1);
        l = SDL_strlen(key_name);
        is_rdp = 0;
        if (l >= 7) {
            for (j = 0; j < l - 7; ++j) {
                for (k = 0; k < 7; ++k) {
                    if (rdp[k] !=
                        SDL_tolower((unsigned char) key_name[j + k])) {
                        break;
                    }
                }
                if (k == 7) {
                    is_rdp = 1;
                    break;
                }
            }
        }

        buffer -= 4;

        if (is_rdp == 1) {
            SDL_free(buffer);
            SDL_free(key_name);
            SDL_free(device_name);
            is_rdp = 0;
            continue;
        }

        /* we're opening the registry key to get the mouse name */
        rc = RegOpenKeyExA(HKEY_LOCAL_MACHINE, key_name, 0, KEY_READ, &hkey);
        if (rc != ERROR_SUCCESS) {
            SDL_memcpy(device_name, default_device_name,
                       SDL_strlen(default_device_name));
        }
        rc = RegQueryValueExA(hkey, "DeviceDesc", NULL, &regtype, device_name,
                              &out);
        RegCloseKey(hkey);
        if (rc != ERROR_SUCCESS) {
            SDL_memcpy(device_name, default_device_name,
                       SDL_strlen(default_device_name));
        }

        /* we're saving the handle to the device */
        mice[index] = deviceList[i].hDevice;
        SDL_zero(mouse);
        mouse.id = index;
        l = SDL_strlen(device_name);

        /* we're checking if the device isn't by any chance a tablet */
        if (data->wintabDLL && tablet == -1) {
            for (j = 0; j < l - 5; ++j) {
                for (k = 0; k < 5; ++k) {
                    if (tab[k] !=
                        SDL_tolower((unsigned char) device_name[j + k])) {
                        break;
                    }
                }
                if (k == 5) {
                    tablet = index;
                    break;
                }
            }
        }

        /* if it's a tablet, let's read it's maximum and minimum pressure */
        if (tablet == index) {
            AXIS pressure;
            int cursors;
            data->WTInfoA(WTI_DEVICES, DVC_NPRESSURE, &pressure);
            data->WTInfoA(WTI_DEVICES, DVC_NCSRTYPES, &cursors);
            SDL_AddMouse(&mouse, device_name, pressure.axMax, pressure.axMin,
                         cursors);
        } else {
            SDL_AddMouse(&mouse, device_name, 0, 0, 1);
        }
        ++index;
        SDL_free(buffer);
        SDL_free(key_name);
    }
    total_mice = index;
    SDL_free(deviceList);
#endif /*_WIN32_WCE*/
}
Exemplo n.º 2
0
int
WIN_CreateWindow(_THIS, SDL_Window * window)
{
    SDL_VideoData *videodata = (SDL_VideoData *) _this->driverdata;
    SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
    RAWINPUTDEVICE Rid;
    AXIS TabX, TabY;
    LOGCONTEXTA lc;
    HWND hwnd;
    HWND top;
    RECT rect;
    SDL_Rect bounds;
    DWORD style = (WS_CLIPSIBLINGS | WS_CLIPCHILDREN);
    int x, y;
    int w, h;

    if (window->flags & (SDL_WINDOW_BORDERLESS | SDL_WINDOW_FULLSCREEN)) {
        style |= WS_POPUP;
    } else {
        style |= (WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX);
    }
    if ((window->flags & SDL_WINDOW_RESIZABLE)
        && !(window->flags & SDL_WINDOW_FULLSCREEN)) {
        style |= (WS_THICKFRAME | WS_MAXIMIZEBOX);
    }

    /* Figure out what the window area will be */
    if (window->flags & SDL_WINDOW_FULLSCREEN) {
        top = HWND_TOPMOST;
    } else {
        top = HWND_NOTOPMOST;
    }
    rect.left = 0;
    rect.top = 0;
    rect.right = window->w;
    rect.bottom = window->h;
    AdjustWindowRectEx(&rect, style, FALSE, 0);
    w = (rect.right - rect.left);
    h = (rect.bottom - rect.top);

    WIN_GetDisplayBounds(_this, display, &bounds);
    if ((window->flags & SDL_WINDOW_FULLSCREEN)
        || window->x == SDL_WINDOWPOS_CENTERED) {
        x = bounds.x + (bounds.w - window->w) / 2;
    } else if (window->x == SDL_WINDOWPOS_UNDEFINED) {
        if (bounds.x == 0) {
            x = CW_USEDEFAULT;
        } else {
            x = bounds.x;
        }
    } else {
        x = bounds.x + window->x + rect.left;
    }
    if ((window->flags & SDL_WINDOW_FULLSCREEN)
        || window->y == SDL_WINDOWPOS_CENTERED) {
        y = bounds.y + (bounds.h - window->h) / 2;
    } else if (window->x == SDL_WINDOWPOS_UNDEFINED) {
        if (bounds.x == 0) {
            y = CW_USEDEFAULT;
        } else {
            y = bounds.y;
        }
    } else {
        y = bounds.y + window->y + rect.top;
    }

    hwnd =
        CreateWindow(SDL_Appname, TEXT(""), style, x, y, w, h, NULL, NULL,
                     SDL_Instance, NULL);
    if (!hwnd) {
        WIN_SetError("Couldn't create window");
        return -1;
    }

    /* we're configuring the tablet data. See Wintab reference for more info */
    if (videodata->wintabDLL
        && videodata->WTInfoA(WTI_DEFSYSCTX, 0, &lc) != 0) {
        lc.lcPktData = PACKETDATA;
        lc.lcPktMode = PACKETMODE;
        lc.lcOptions |= CXO_MESSAGES;
        lc.lcOptions |= CXO_SYSTEM;
        lc.lcMoveMask = PACKETDATA;
        lc.lcBtnDnMask = lc.lcBtnUpMask = PACKETDATA;
        videodata->WTInfoA(WTI_DEVICES, DVC_X, &TabX);
        videodata->WTInfoA(WTI_DEVICES, DVC_Y, &TabY);
        lc.lcInOrgX = 0;
        lc.lcInOrgY = 0;
        lc.lcInExtX = TabX.axMax;
        lc.lcInExtY = TabY.axMax;
        lc.lcOutOrgX = 0;
        lc.lcOutOrgY = 0;
        lc.lcOutExtX = GetSystemMetrics(SM_CXSCREEN);
        lc.lcOutExtY = -GetSystemMetrics(SM_CYSCREEN);
        if (window->id > highestId) {
            HCTX *tmp_hctx;
            highestId = window->id;
            tmp_hctx =
                (HCTX *) SDL_realloc(g_hCtx, (highestId + 1) * sizeof(HCTX));
            if (!tmp_hctx) {
                SDL_OutOfMemory();
                DestroyWindow(hwnd);
                return -1;
            }
            g_hCtx = tmp_hctx;
        }
        g_hCtx[window->id] = videodata->WTOpenA(hwnd, &lc, TRUE);
    }
#ifndef _WIN32_WCE              /* has no RawInput */
    /* we're telling the window, we want it to report raw input events from mice */
    Rid.usUsagePage = 0x01;
    Rid.usUsage = 0x02;
    Rid.dwFlags = RIDEV_INPUTSINK;
    Rid.hwndTarget = hwnd;
    RegisterRawInputDevices(&Rid, 1, sizeof(Rid));
#endif

    WIN_PumpEvents(_this);

    if (SetupWindowData(_this, window, hwnd, SDL_TRUE) < 0) {
        DestroyWindow(hwnd);
        return -1;
    }
#ifdef SDL_VIDEO_OPENGL_WGL
    if (window->flags & SDL_WINDOW_OPENGL) {
        if (WIN_GL_SetupWindow(_this, window) < 0) {
            WIN_DestroyWindow(_this, window);
            return -1;
        }
    }
#endif
    return 0;
}