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Merge pull request #935 from agx/cursor-output-transform

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wlr_cursor: transform absolute coordinates
This commit is contained in:
Drew DeVault 2018-05-03 07:29:32 -04:00 committed by GitHub
commit 2964248f42
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 98 additions and 28 deletions
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18
backend/wayland/wl_seat.c
View file

@ -74,25 +74,11 @@ static void pointer_handle_motion(void *data, struct wl_pointer *wl_pointer,
}
struct wlr_output *wlr_output = &pointer->output->wlr_output;
struct wlr_box box = {
.x = wl_fixed_to_int(sx),
.y = wl_fixed_to_int(sy),
};
wlr_box_transform(&box, wlr_output->transform, wlr_output->width,
wlr_output->height, &box);
box.x /= wlr_output->scale;
box.y /= wlr_output->scale;
int output_width, output_height;
wlr_output_effective_resolution(&pointer->output->wlr_output,
&output_width, &output_height);
struct wlr_event_pointer_motion_absolute event = {
.device = &pointer->input_device->wlr_input_device,
.time_msec = time,
.x = (double)box.x / output_width,
.y = (double)box.y / output_height,
.x = wl_fixed_to_double(sx) / wlr_output->width,
.y = wl_fixed_to_double(sy) / wlr_output->height,
};
wlr_signal_emit_safe(&pointer->wlr_pointer.events.motion_absolute, &event);
}

14
backend/x11/input_device.c
View file

@ -32,21 +32,11 @@ static void x11_handle_pointer_position(struct wlr_x11_output *output,
int16_t x, int16_t y, xcb_timestamp_t time) {
struct wlr_x11_backend *x11 = output->x11;
struct wlr_output *wlr_output = &output->wlr_output;
struct wlr_box box = { .x = x, .y = y };
wlr_box_transform(&box, wlr_output->transform, wlr_output->width,
wlr_output->height, &box);
box.x /= wlr_output->scale;
box.y /= wlr_output->scale;
int output_width, output_height;
wlr_output_effective_resolution(wlr_output, &output_width, &output_height);
struct wlr_event_pointer_motion_absolute event = {
.device = &output->pointer_dev,
.time_msec = time,
.x = (double)box.x / output_width,
.y = (double)box.y / output_height,
.x = (double)x / wlr_output->width,
.y = (double)y / wlr_output->height,
};
wlr_signal_emit_safe(&output->pointer.events.motion_absolute, &event);

94
types/wlr_cursor.c
View file

@ -330,11 +330,75 @@ static void handle_pointer_motion(struct wl_listener *listener, void *data) {
wlr_signal_emit_safe(&device->cursor->events.motion, event);
}
static void apply_output_transform(double *x, double *y,
enum wl_output_transform transform) {
double dx, dy;
double width = 1.0, height = 1.0;
switch (transform) {
case WL_OUTPUT_TRANSFORM_NORMAL:
dx = *x;
dy = *y;
break;
case WL_OUTPUT_TRANSFORM_90:
dx = *y;
dy = width - *x;
break;
case WL_OUTPUT_TRANSFORM_180:
dx = width - *x;
dy = height - *y;
break;
case WL_OUTPUT_TRANSFORM_270:
dx = height - *y;
dy = *x;
break;
case WL_OUTPUT_TRANSFORM_FLIPPED:
dx = width - *x;
dy = *y;
break;
case WL_OUTPUT_TRANSFORM_FLIPPED_90:
dx = height - *y;
dy = width - *x;
break;
case WL_OUTPUT_TRANSFORM_FLIPPED_180:
dx = *x;
dy = height - *y;
break;
case WL_OUTPUT_TRANSFORM_FLIPPED_270:
dx = *y;
dy = *x;
break;
}
*x = dx;
*y = dy;
}
static struct wlr_output *get_mapped_output(struct wlr_cursor_device *cursor_device) {
if (cursor_device->mapped_output) {
return cursor_device->mapped_output;
}
struct wlr_cursor *cursor = cursor_device->cursor;
assert(cursor);
if (cursor->state->mapped_output) {
return cursor->state->mapped_output;
}
return NULL;
}
static void handle_pointer_motion_absolute(struct wl_listener *listener,
void *data) {
struct wlr_event_pointer_motion_absolute *event = data;
struct wlr_cursor_device *device =
wl_container_of(listener, device, motion_absolute);
struct wlr_output *output =
get_mapped_output(device);
if (output) {
apply_output_transform(&event->x, &event->y, output->transform);
}
wlr_signal_emit_safe(&device->cursor->events.motion_absolute, event);
}
@ -362,6 +426,12 @@ static void handle_touch_down(struct wl_listener *listener, void *data) {
struct wlr_event_touch_down *event = data;
struct wlr_cursor_device *device;
device = wl_container_of(listener, device, touch_down);
struct wlr_output *output =
get_mapped_output(device);
if (output) {
apply_output_transform(&event->x, &event->y, output->transform);
}
wlr_signal_emit_safe(&device->cursor->events.touch_down, event);
}
@ -369,6 +439,12 @@ static void handle_touch_motion(struct wl_listener *listener, void *data) {
struct wlr_event_touch_motion *event = data;
struct wlr_cursor_device *device;
device = wl_container_of(listener, device, touch_motion);
struct wlr_output *output =
get_mapped_output(device);
if (output) {
apply_output_transform(&event->x, &event->y, output->transform);
}
wlr_signal_emit_safe(&device->cursor->events.touch_motion, event);
}
@ -383,6 +459,12 @@ static void handle_tablet_tool_tip(struct wl_listener *listener, void *data) {
struct wlr_event_tablet_tool_tip *event = data;
struct wlr_cursor_device *device;
device = wl_container_of(listener, device, tablet_tool_tip);
struct wlr_output *output =
get_mapped_output(device);
if (output) {
apply_output_transform(&event->x, &event->y, output->transform);
}
wlr_signal_emit_safe(&device->cursor->events.tablet_tool_tip, event);
}
@ -390,6 +472,12 @@ static void handle_tablet_tool_axis(struct wl_listener *listener, void *data) {
struct wlr_event_tablet_tool_axis *event = data;
struct wlr_cursor_device *device;
device = wl_container_of(listener, device, tablet_tool_axis);
struct wlr_output *output =
get_mapped_output(device);
if (output) {
apply_output_transform(&event->x, &event->y, output->transform);
}
wlr_signal_emit_safe(&device->cursor->events.tablet_tool_axis, event);
}
@ -406,6 +494,12 @@ static void handle_tablet_tool_proximity(struct wl_listener *listener,
struct wlr_event_tablet_tool_proximity *event = data;
struct wlr_cursor_device *device;
device = wl_container_of(listener, device, tablet_tool_proximity);
struct wlr_output *output =
get_mapped_output(device);
if (output) {
apply_output_transform(&event->x, &event->y, output->transform);
}
wlr_signal_emit_safe(&device->cursor->events.tablet_tool_proximity, event);
}