static void
touch_handle_touch(void *data,
struct qt_touch_extension *qt_touch_extension,
uint32_t time,
uint32_t id,
uint32_t state,
int32_t x,
int32_t y,
int32_t normalized_x,
int32_t normalized_y,
int32_t width,
int32_t height,
uint32_t pressure,
int32_t velocity_x,
int32_t velocity_y,
uint32_t flags,
struct wl_array *rawdata)
{
/**
* Event is assembled in QtWayland in TouchExtensionGlobal::postTouchEvent
* (src/compositor/wayland_wrapper/qwltouch.cpp)
**/
float FIXED_TO_FLOAT = 1. / 10000.;
float xf = FIXED_TO_FLOAT * x;
float yf = FIXED_TO_FLOAT * y;
float PRESSURE_TO_FLOAT = 1. / 255.;
float pressuref = PRESSURE_TO_FLOAT * pressure;
uint32_t touchState = state & 0xFFFF;
/*
Other fields that are sent by the server (qwltouch.cpp),
but not used at the moment can be decoded in this way:
uint32_t sentPointCount = state >> 16;
uint32_t touchFlags = flags & 0xFFFF;
uint32_t capabilities = flags >> 16;
*/
SDL_TouchID deviceId = 1;
if (SDL_AddTouch(deviceId, "qt_touch_extension") < 0) {
SDL_Log("error: can't add touch %s, %d", __FILE__, __LINE__);
}
switch (touchState) {
case QtWaylandTouchPointPressed:
case QtWaylandTouchPointReleased:
SDL_SendTouch(deviceId, (SDL_FingerID)id,
(touchState == QtWaylandTouchPointPressed) ? SDL_TRUE : SDL_FALSE,
xf, yf, pressuref);
break;
case QtWaylandTouchPointMoved:
SDL_SendTouchMotion(deviceId, (SDL_FingerID)id, xf, yf, pressuref);
break;
default:
/* Should not happen */
break;
}
}
void Android_OnTouch(int touch_device_id_in, int pointer_finger_id_in, int action, float x, float y, float p)
{
SDL_TouchID touchDeviceId = 0;
SDL_FingerID fingerId = 0;
int window_x, window_y;
static SDL_FingerID pointerFingerID = 0;
if (!Android_Window) {
return;
}
touchDeviceId = (SDL_TouchID)touch_device_id_in;
if (SDL_AddTouch(touchDeviceId, "") < 0) {
SDL_Log("error: can't add touch %s, %d", __FILE__, __LINE__);
}
fingerId = (SDL_FingerID)pointer_finger_id_in;
switch (action) {
case ACTION_DOWN:
/* Primary pointer down */
if (!separate_mouse_and_touch) {
Android_GetWindowCoordinates(x, y, &window_x, &window_y);
/* send moved event */
SDL_SendMouseMotion(Android_Window, SDL_TOUCH_MOUSEID, 0, window_x, window_y);
/* send mouse down event */
SDL_SendMouseButton(Android_Window, SDL_TOUCH_MOUSEID, SDL_PRESSED, SDL_BUTTON_LEFT);
}
pointerFingerID = fingerId;
case ACTION_POINTER_DOWN:
/* Non primary pointer down */
SDL_SendTouch(touchDeviceId, fingerId, SDL_TRUE, x, y, p);
break;
case ACTION_MOVE:
if (!pointerFingerID) {
if (!separate_mouse_and_touch) {
Android_GetWindowCoordinates(x, y, &window_x, &window_y);
/* send moved event */
SDL_SendMouseMotion(Android_Window, SDL_TOUCH_MOUSEID, 0, window_x, window_y);
}
}
SDL_SendTouchMotion(touchDeviceId, fingerId, x, y, p);
break;
case ACTION_UP:
/* Primary pointer up */
if (!separate_mouse_and_touch) {
/* send mouse up */
SDL_SendMouseButton(Android_Window, SDL_TOUCH_MOUSEID, SDL_RELEASED, SDL_BUTTON_LEFT);
}
pointerFingerID = (SDL_FingerID) 0;
case ACTION_POINTER_UP:
/* Non primary pointer up */
SDL_SendTouch(touchDeviceId, fingerId, SDL_FALSE, x, y, p);
break;
default:
break;
}
}
void Android_OnTouch(int touch_device_id_in, int pointer_finger_id_in, int action, float x, float y, float p)
{
SDL_TouchID touchDeviceId = 0;
SDL_FingerID fingerId = 0;
int window_x, window_y;
if (!Android_Window) {
return;
}
touchDeviceId = (SDL_TouchID)touch_device_id_in;
if (!SDL_GetTouch(touchDeviceId)) {
if (SDL_AddTouch(touchDeviceId, "") < 0) {
SDL_Log("error: can't add touch %s, %d", __FILE__, __LINE__);
}
}
fingerId = (SDL_FingerID)pointer_finger_id_in;
switch (action) {
case ACTION_DOWN:
case ACTION_POINTER_1_DOWN:
if (!leftFingerDown) {
Android_GetWindowCoordinates(x, y, &window_x, &window_y);
/* send moved event */
SDL_SendMouseMotion(NULL, SDL_TOUCH_MOUSEID, 0, window_x, window_y);
/* send mouse down event */
SDL_SendMouseButton(NULL, SDL_TOUCH_MOUSEID, SDL_PRESSED, SDL_BUTTON_LEFT);
leftFingerDown = fingerId;
}
SDL_SendTouch(touchDeviceId, fingerId, SDL_TRUE, x, y, p);
break;
case ACTION_MOVE:
if (!leftFingerDown) {
Android_GetWindowCoordinates(x, y, &window_x, &window_y);
/* send moved event */
SDL_SendMouseMotion(NULL, SDL_TOUCH_MOUSEID, 0, window_x, window_y);
}
SDL_SendTouchMotion(touchDeviceId, fingerId, x, y, p);
break;
case ACTION_UP:
case ACTION_POINTER_1_UP:
if (fingerId == leftFingerDown) {
/* send mouse up */
SDL_SendMouseButton(NULL, SDL_TOUCH_MOUSEID, SDL_RELEASED, SDL_BUTTON_LEFT);
leftFingerDown = 0;
}
SDL_SendTouch(touchDeviceId, fingerId, SDL_FALSE, x, y, p);
break;
default:
break;
}
}
void Android_InitTouch(void)
{
int i;
int* ids;
int number = Android_JNI_GetTouchDeviceIds(&ids);
if (0 < number) {
for (i = 0; i < number; ++i) {
SDL_AddTouch((SDL_TouchID) ids[i], ""); /* no error handling */
}
SDL_free(ids);
}
}
void Android_OnTouch(int touch_device_id_in, int pointer_finger_id_in, int action, float x, float y, float p)
{
SDL_TouchID touchDeviceId = 0;
SDL_FingerID fingerId = 0;
if (!Android_Window) {
return;
}
touchDeviceId = (SDL_TouchID)touch_device_id_in;
if (!SDL_GetTouch(touchDeviceId)) {
SDL_Touch touch;
memset( &touch, 0, sizeof(touch) );
touch.id = touchDeviceId;
touch.x_min = 0.0f;
touch.x_max = (float)Android_ScreenWidth;
touch.native_xres = touch.x_max - touch.x_min;
touch.y_min = 0.0f;
touch.y_max = (float)Android_ScreenHeight;
touch.native_yres = touch.y_max - touch.y_min;
touch.pressure_min = 0.0f;
touch.pressure_max = 1.0f;
touch.native_pressureres = touch.pressure_max - touch.pressure_min;
if (SDL_AddTouch(&touch, "") < 0) {
SDL_Log("error: can't add touch %s, %d", __FILE__, __LINE__);
}
}
fingerId = (SDL_FingerID)pointer_finger_id_in;
switch (action) {
case ACTION_DOWN:
case ACTION_POINTER_1_DOWN:
SDL_SendMouseMotion(Android_Window, 0, x, y);
SDL_SendMouseButton(Android_Window, SDL_PRESSED, SDL_BUTTON_LEFT);
SDL_SendFingerDown(touchDeviceId, fingerId, SDL_TRUE, x, y, p);
break;
case ACTION_MOVE:
SDL_SendMouseMotion(Android_Window, 0, x, y);
SDL_SendTouchMotion(touchDeviceId, fingerId, SDL_FALSE, x, y, p);
break;
case ACTION_UP:
case ACTION_POINTER_1_UP:
SDL_SendMouseButton(Android_Window, SDL_RELEASED, SDL_BUTTON_LEFT);
SDL_SendFingerDown(touchDeviceId, fingerId, SDL_FALSE, x, y, p);
break;
default:
break;
}
}
void Android_InitTouch(void)
{
int i;
int* ids;
const int number = Android_JNI_GetTouchDeviceIds(&ids);
SDL_AddHintCallback(SDL_HINT_ANDROID_SEPARATE_MOUSE_AND_TOUCH,
SeparateEventsHintWatcher, NULL);
if (0 < number) {
for (i = 0; i < number; ++i) {
SDL_AddTouch((SDL_TouchID) ids[i], ""); /* no error handling */
}
SDL_free(ids);
}
}
static void SDLCALL
SDL_MouseTouchEventsChanged(void *userdata, const char *name, const char *oldValue, const char *hint)
{
SDL_Mouse *mouse = (SDL_Mouse *)userdata;
if (hint == NULL || *hint == '\0') {
/* Default */
#if defined(__ANDROID__) || (defined(__IPHONEOS__) && !defined(__TVOS__))
mouse->mouse_touch_events = SDL_TRUE;
#else
mouse->mouse_touch_events = SDL_FALSE;
#endif
} else if (*hint == '1' || SDL_strcasecmp(hint, "true") == 0) {
mouse->mouse_touch_events = SDL_TRUE;
} else {
mouse->mouse_touch_events = SDL_FALSE;
}
if (mouse->mouse_touch_events) {
SDL_AddTouch(SDL_MOUSE_TOUCHID, SDL_TOUCH_DEVICE_DIRECT, "mouse_input");
}
}
void
X11_InitTouch(_THIS)
{
#ifdef SDL_INPUT_LINUXEV
FILE *fd;
fd = fopen("/proc/bus/input/devices","r");
char c;
int i = 0;
char line[256];
char tstr[256];
int vendor = -1,product = -1,event = -1;
while(!feof(fd)) {
if(fgets(line,256,fd) <=0) continue;
if(line[0] == '\n') {
if(vendor == 1386) {
/*printf("Wacom... Assuming it is a touch device\n");*/
/*sprintf(tstr,"/dev/input/event%i",event);*/
/*printf("At location: %s\n",tstr);*/
SDL_Touch touch;
touch.pressure_max = 0;
touch.pressure_min = 0;
touch.id = event;
touch.driverdata = SDL_malloc(sizeof(EventTouchData));
EventTouchData* data = (EventTouchData*)(touch.driverdata);
data->x = -1;
data->y = -1;
data->pressure = -1;
data->finger = 0;
data->up = SDL_FALSE;
data->eventStream = open(tstr,
O_RDONLY | O_NONBLOCK);
ioctl (data->eventStream, EVIOCGNAME (sizeof (tstr)), tstr);
int abs[5];
ioctl(data->eventStream,EVIOCGABS(0),abs);
touch.x_min = abs[1];
touch.x_max = abs[2];
touch.native_xres = touch.x_max - touch.x_min;
ioctl(data->eventStream,EVIOCGABS(ABS_Y),abs);
touch.y_min = abs[1];
touch.y_max = abs[2];
touch.native_yres = touch.y_max - touch.y_min;
ioctl(data->eventStream,EVIOCGABS(ABS_PRESSURE),abs);
touch.pressure_min = abs[1];
touch.pressure_max = abs[2];
touch.native_pressureres = touch.pressure_max - touch.pressure_min;
SDL_AddTouch(&touch, tstr);
}
vendor = -1;
product = -1;
event = -1;
}
else if(line[0] == 'I') {
i = 1;
while(line[i]) {
sscanf(&line[i],"Vendor=%x",&vendor);
sscanf(&line[i],"Product=%x",&product);
i++;
}
}
else if(line[0] == 'H') {
i = 1;
while(line[i]) {
sscanf(&line[i],"event%d",&event);
i++;
}
}
}
close(fd);
#endif
}
static void
AddTouchDevice(int device_id)
{
if (SDL_AddTouch(device_id, "") < 0)
SDL_SetError("Error: can't add touch %s, %d", __FILE__, __LINE__);
}
static int
SDL_EVDEV_init_touchscreen(SDL_evdevlist_item* item)
{
int ret, i;
char name[64];
struct input_absinfo abs_info;
if (!item->is_touchscreen)
return 0;
item->touchscreen_data = SDL_calloc(1, sizeof(*item->touchscreen_data));
if (item->touchscreen_data == NULL)
return SDL_OutOfMemory();
ret = ioctl(item->fd, EVIOCGNAME(sizeof(name)), name);
if (ret < 0) {
SDL_free(item->touchscreen_data);
return SDL_SetError("Failed to get evdev touchscreen name");
}
item->touchscreen_data->name = SDL_strdup(name);
if (item->touchscreen_data->name == NULL) {
SDL_free(item->touchscreen_data);
return SDL_OutOfMemory();
}
ret = ioctl(item->fd, EVIOCGABS(ABS_MT_POSITION_X), &abs_info);
if (ret < 0) {
SDL_free(item->touchscreen_data->name);
SDL_free(item->touchscreen_data);
return SDL_SetError("Failed to get evdev touchscreen limits");
}
item->touchscreen_data->min_x = abs_info.minimum;
item->touchscreen_data->max_x = abs_info.maximum;
item->touchscreen_data->range_x = abs_info.maximum - abs_info.minimum;
ret = ioctl(item->fd, EVIOCGABS(ABS_MT_POSITION_Y), &abs_info);
if (ret < 0) {
SDL_free(item->touchscreen_data->name);
SDL_free(item->touchscreen_data);
return SDL_SetError("Failed to get evdev touchscreen limits");
}
item->touchscreen_data->min_y = abs_info.minimum;
item->touchscreen_data->max_y = abs_info.maximum;
item->touchscreen_data->range_y = abs_info.maximum - abs_info.minimum;
ret = ioctl(item->fd, EVIOCGABS(ABS_MT_SLOT), &abs_info);
if (ret < 0) {
SDL_free(item->touchscreen_data->name);
SDL_free(item->touchscreen_data);
return SDL_SetError("Failed to get evdev touchscreen limits");
}
item->touchscreen_data->max_slots = abs_info.maximum + 1;
item->touchscreen_data->slots = SDL_calloc(
item->touchscreen_data->max_slots,
sizeof(*item->touchscreen_data->slots));
if (item->touchscreen_data->slots == NULL) {
SDL_free(item->touchscreen_data->name);
SDL_free(item->touchscreen_data);
return SDL_OutOfMemory();
}
for(i = 0; i < item->touchscreen_data->max_slots; i++) {
item->touchscreen_data->slots[i].tracking_id = -1;
}
ret = SDL_AddTouch(item->fd, /* I guess our fd is unique enough */
item->touchscreen_data->name);
if (ret < 0) {
SDL_free(item->touchscreen_data->slots);
SDL_free(item->touchscreen_data->name);
SDL_free(item->touchscreen_data);
return ret;
}
return 0;
}