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Fixed bug 4704 - SDL_HINT_ANDROID_SEPERATE_MOUSE_AND_TOUCH on Windows?

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superfury

I notice that, somehow, when locking the mouse into place(using SDL_SetRelativeMouseMode), somehow at least the movement information gets through to both mouse movement and touch movement events?

My app handles both, so when moving a touched finger accross the app(using RDP from an Android device) I see the mouse moving inside the app when it shouldn't(meaning that the touch movement is ignored properly by the app(press-location dependant) but the mouse movement is still performed due to the mouse movement events)?
This commit is contained in:
Sam Lantinga
2019-07-15 09:36:53 -07:00
parent 064d1223f0
commit e7c2cf107a
3 changed files with 64 additions and 10 deletions
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53
src/video/windows/SDL_windowsevents.c
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@@ -359,14 +359,32 @@ ShouldGenerateWindowCloseOnAltF4(void)
return !SDL_GetHintBoolean(SDL_HINT_WINDOWS_NO_CLOSE_ON_ALT_F4, SDL_FALSE);
}
static SDL_bool isVistaOrNewer = SDL_FALSE;
/* Win10 "Fall Creators Update" introduced the bug that SetCursorPos() (as used by SDL_WarpMouseInWindow())
doesn't reliably generate WM_MOUSEMOVE events anymore (see #3931) which breaks relative mouse mode via warping.
This is used to implement a workaround.. */
static SDL_bool isWin10FCUorNewer = SDL_FALSE;
/* Checks a mouse or raw packet for touch indication.
returns: 0 for not touch input, 1 for touch input.
*/
static LPARAM
GetMessageExtraInfoAndCheckMousePacketTouch(int *checkTouch) {
LPARAM extrainfo = GetMessageExtraInfo();
/* Mouse data (ignoring synthetic mouse events generated for touchscreens) */
/* Versions below Vista will set the low 7 bits to the Mouse ID and don't use bit 7:
Check bits 8-32 for the signature (which will indicate a Tablet PC Pen or Touch Device).
Only check bit 7 when Vista and up(Cleared=Pen, Set=Touch(which we need to filter out)),
when the signature is set. The Mouse ID will be zero for an actual mouse. */
*checkTouch = (!(((extrainfo & 0x7F) && (isVistaOrNewer ? (extrainfo & 0x80) : 1)) || ((extrainfo & 0xFFFFFF00) == 0xFF515700)));
return extrainfo;
}
LRESULT CALLBACK
WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
int checkTouch = -1; /* Default to -1 for not yet loaded */
LPARAM extrainfo; /* The extra info when checkTouch >= 0. */
SDL_WindowData *data;
LRESULT returnCode = -1;
@@ -494,9 +512,10 @@ WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
case WM_MOUSEMOVE:
{
SDL_Mouse *mouse = SDL_GetMouse();
extrainfo = GetMessageExtraInfoAndCheckMousePacketTouch(&checkTouch); /* load */
if (!mouse->relative_mode || mouse->relative_mode_warp) {
/* Only generate mouse events for real mouse */
if ((GetMessageExtraInfo() & MOUSEEVENTF_FROMTOUCH) != MOUSEEVENTF_FROMTOUCH) {
if (((extrainfo & MOUSEEVENTF_FROMTOUCH) != MOUSEEVENTF_FROMTOUCH) && checkTouch) {
SDL_SendMouseMotion(data->window, 0, 0, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
if (isWin10FCUorNewer && mouse->relative_mode_warp) {
/* To work around #3931, Win10 bug introduced in Fall Creators Update, where
@@ -527,8 +546,11 @@ WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
case WM_XBUTTONDBLCLK:
{
SDL_Mouse *mouse = SDL_GetMouse();
if (checkTouch < 0) {
extrainfo = GetMessageExtraInfoAndCheckMousePacketTouch(&checkTouch);
}
if (!mouse->relative_mode || mouse->relative_mode_warp) {
if ((GetMessageExtraInfo() & MOUSEEVENTF_FROMTOUCH) != MOUSEEVENTF_FROMTOUCH) {
if (((extrainfo & MOUSEEVENTF_FROMTOUCH) != MOUSEEVENTF_FROMTOUCH) && checkTouch) {
WIN_CheckWParamMouseButtons(wParam, data, 0);
}
}
@@ -553,7 +575,10 @@ WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
GetRawInputData(hRawInput, RID_INPUT, &inp, &size, sizeof(RAWINPUTHEADER));
/* Mouse data (ignoring synthetic mouse events generated for touchscreens) */
if (inp.header.dwType == RIM_TYPEMOUSE && (GetMessageExtraInfo() & 0x80) == 0) {
if (inp.header.dwType == RIM_TYPEMOUSE) {
extrainfo = GetMessageExtraInfoAndCheckMousePacketTouch(&checkTouch);
if (!checkTouch)
break;
if (isRelative) {
RAWMOUSE* rawmouse = &inp.data.mouse;
@@ -616,10 +641,21 @@ WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
case WM_MOUSELEAVE:
if (SDL_GetMouseFocus() == data->window && !SDL_GetMouse()->relative_mode && !(data->window->flags & SDL_WINDOW_MOUSE_CAPTURE)) {
if (!IsIconic(hwnd)) {
SDL_Mouse *mouse;
POINT cursorPos;
GetCursorPos(&cursorPos);
ScreenToClient(hwnd, &cursorPos);
SDL_SendMouseMotion(data->window, 0, 0, cursorPos.x, cursorPos.y);
mouse = SDL_GetMouse();
if (!mouse->was_touch_mouse_events) { /* we're not a touch handler causing a mouse leave? */
SDL_SendMouseMotion(data->window, 0, 0, cursorPos.x, cursorPos.y);
} else { /* touch handling? */
mouse->was_touch_mouse_events = SDL_FALSE; /* not anymore */
if (mouse->touch_mouse_events) { /* convert touch to mouse events */
SDL_SendMouseMotion(data->window, SDL_TOUCH_MOUSEID, 0, cursorPos.x, cursorPos.y);
} else { /* normal handling */
SDL_SendMouseMotion(data->window, 0, 0, cursorPos.x, cursorPos.y);
}
}
}
SDL_SetMouseFocus(NULL);
}
@@ -1124,6 +1160,14 @@ struct SDL_WIN_OSVERSIONINFOW {
WCHAR szCSDVersion[128];
};
static SDL_bool
IsWinVistaOrNewer(void)
{
DWORD version = GetVersion();
DWORD major = (DWORD)(LOBYTE(LOWORD(version)));
return (major >= 6)? SDL_TRUE : SDL_FALSE;
}
static SDL_bool
IsWin10FCUorNewer(void)
{
@@ -1212,6 +1256,7 @@ SDL_RegisterApp(char *name, Uint32 style, void *hInst)
return SDL_SetError("Couldn't register application class");
}
isVistaOrNewer = IsWinVistaOrNewer();
isWin10FCUorNewer = IsWin10FCUorNewer();
app_registered = 1;