HiDPI

backend/libinput/tablet_tool.c

@@ -70,6 +70,8 @@ void handle_tablet_tool_axis(struct libinput_event *event,
 		wlr_event.updated_axes |= WLR_TABLET_TOOL_AXIS_WHEEL;
 		wlr_event.wheel_delta = libinput_event_tablet_tool_get_wheel_delta(tevent);
 	}
+	wlr_log(L_DEBUG, "Tablet tool axis event %d @ %f,%f",
+			wlr_event.updated_axes, wlr_event.x_mm, wlr_event.y_mm);
 	wl_signal_emit(&wlr_dev->tablet_tool->events.axis, &wlr_event);
 }
 

backend/wayland/output.c

@@ -249,7 +249,7 @@ struct wlr_output *wlr_wl_output_create(struct wlr_backend *_backend) {
 	wlr_output_init(&output->wlr_output, &backend->backend, &output_impl);
 	struct wlr_output *wlr_output = &output->wlr_output;
 
-	wlr_output_update_size(wlr_output, 640, 480);
+	wlr_output_update_size(wlr_output, 1280, 720);
 	strncpy(wlr_output->make, "wayland", sizeof(wlr_output->make));
 	strncpy(wlr_output->model, "wayland", sizeof(wlr_output->model));
 	snprintf(wlr_output->name, sizeof(wlr_output->name), "WL-%d",

include/rootston/config.h

@@ -8,6 +8,7 @@ struct output_config {
 	char *name;
 	enum wl_output_transform transform;
 	int x, y;
+	int scale;
 	struct wl_list link;
 	struct {
 		int width, height;

include/rootston/view.h

@@ -71,7 +71,7 @@ struct roots_view {
 	// configure event from the xdg_shell
 	// If not then this should follow the typical type/impl pattern we use
 	// elsewhere
-	void (*get_size)(struct roots_view *view, struct wlr_box *box);
+	void (*get_size)(const struct roots_view *view, struct wlr_box *box);
 	void (*activate)(struct roots_view *view, bool active);
 	void (*move)(struct roots_view *view, double x, double y);
 	void (*resize)(struct roots_view *view, uint32_t width, uint32_t height);
@@ -80,7 +80,7 @@ struct roots_view {
 	void (*close)(struct roots_view *view);
 };
 
-void view_get_size(struct roots_view *view, struct wlr_box *box);
+void view_get_size(const struct roots_view *view, struct wlr_box *box);
 void view_activate(struct roots_view *view, bool active);
 void view_move(struct roots_view *view, double x, double y);
 void view_resize(struct roots_view *view, uint32_t width, uint32_t height);

include/wlr/types/wlr_output.h

@@ -14,7 +14,7 @@ struct wlr_output_mode {
 
 struct wlr_output_cursor {
 	struct wlr_output *output;
-	int32_t x, y;
+	double x, y;
 	bool enabled;
 	uint32_t width, height;
 	int32_t hotspot_x, hotspot_y;
@@ -95,7 +95,8 @@ bool wlr_output_cursor_set_image(struct wlr_output_cursor *cursor,
 	int32_t hotspot_x, int32_t hotspot_y);
 void wlr_output_cursor_set_surface(struct wlr_output_cursor *cursor,
 	struct wlr_surface *surface, int32_t hotspot_x, int32_t hotspot_y);
-bool wlr_output_cursor_move(struct wlr_output_cursor *cursor, int x, int y);
+bool wlr_output_cursor_move(struct wlr_output_cursor *cursor,
+	double x, double y);
 void wlr_output_cursor_destroy(struct wlr_output_cursor *cursor);
 
 #endif

include/wlr/types/wlr_surface.h

@@ -1,10 +1,10 @@
 #ifndef WLR_TYPES_WLR_SURFACE_H
 #define WLR_TYPES_WLR_SURFACE_H
-
 #include <wayland-server.h>
 #include <pixman.h>
 #include <stdint.h>
 #include <stdbool.h>
+#include <wlr/types/wlr_output.h>
 
 struct wlr_frame_callback {
 	struct wl_resource *resource;
@@ -135,4 +135,11 @@ struct wlr_surface *wlr_surface_get_main_surface(struct wlr_surface *surface);
  */
 struct wlr_subsurface *wlr_surface_subsurface_at(struct wlr_surface *surface,
 		double sx, double sy, double *sub_x, double *sub_y);
+
+void wlr_surface_send_enter(struct wlr_surface *surface,
+		struct wlr_output *output);
+
+void wlr_surface_send_leave(struct wlr_surface *surface,
+		struct wlr_output *output);
+
 #endif

rootston/config.c

@@ -220,13 +220,17 @@ static int config_ini_handler(void *user, const char *section, const char *name,
 			oc = calloc(1, sizeof(struct output_config));
 			oc->name = strdup(output_name);
 			oc->transform = WL_OUTPUT_TRANSFORM_NORMAL;
+			oc->scale = 1;
 			wl_list_insert(&config->outputs, &oc->link);
 		}
 
 		if (strcmp(name, "x") == 0) {
 			oc->x = strtol(value, NULL, 10);
 		} else if (strcmp(name, "y") == 0) {
 			oc->y = strtol(value, NULL, 10);
+		} else if (strcmp(name, "scale") == 0) {
+			oc->scale = strtol(value, NULL, 10);
+			assert(oc->scale >= 1);
 		} else if (strcmp(name, "rotate") == 0) {
 			if (strcmp(value, "normal") == 0) {
 				oc->transform = WL_OUTPUT_TRANSFORM_NORMAL;

rootston/cursor.c

@@ -383,11 +383,20 @@ static void handle_touch_motion(struct wl_listener *listener, void *data) {
 static void handle_tool_axis(struct wl_listener *listener, void *data) {
 	struct roots_input *input = wl_container_of(listener, input, cursor_tool_axis);
 	struct wlr_event_tablet_tool_axis *event = data;
+
 	if ((event->updated_axes & WLR_TABLET_TOOL_AXIS_X) &&
 			(event->updated_axes & WLR_TABLET_TOOL_AXIS_Y)) {
 		wlr_cursor_warp_absolute(input->cursor, event->device,
 			event->x_mm / event->width_mm, event->y_mm / event->height_mm);
 		cursor_update_position(input, event->time_msec);
+	} else if ((event->updated_axes & WLR_TABLET_TOOL_AXIS_X)) {
+		wlr_cursor_warp_absolute(input->cursor, event->device,
+			event->x_mm / event->width_mm, -1);
+		cursor_update_position(input, event->time_msec);
+	} else if ((event->updated_axes & WLR_TABLET_TOOL_AXIS_Y)) {
+		wlr_cursor_warp_absolute(input->cursor, event->device,
+			-1, event->y_mm / event->height_mm);
+		cursor_update_position(input, event->time_msec);
 	}
 }
 

rootston/desktop.c

@@ -35,36 +35,64 @@ void view_destroy(struct roots_view *view) {
 	free(view);
 }
 
-void view_get_size(struct roots_view *view, struct wlr_box *box) {
+void view_get_size(const struct roots_view *view, struct wlr_box *box) {
 	if (view->get_size) {
 		view->get_size(view, box);
-		return;
+	} else {
+		box->width = view->wlr_surface->current->width;
+		box->height = view->wlr_surface->current->height;
 	}
-	box->x = box->y = 0;
-	box->width = view->wlr_surface->current->width;
-	box->height = view->wlr_surface->current->height;
+	box->x = view->x;
+	box->y = view->y;
 }
 
-void view_activate(struct roots_view *view, bool activate) {
-	if (view->activate) {
-		view->activate(view, activate);
+static void view_update_output(const struct roots_view *view,
+		const struct wlr_box *before) {
+	struct roots_desktop *desktop = view->desktop;
+	struct roots_output *output;
+	struct wlr_box box;
+	view_get_size(view, &box);
+	wl_list_for_each(output, &desktop->outputs, link) {
+		bool intersected = before->x != -1 && wlr_output_layout_intersects(
+				desktop->layout, output->wlr_output,
+				before->x, before->y, before->x + before->width,
+				before->y + before->height);
+		bool intersects = wlr_output_layout_intersects(
+				desktop->layout, output->wlr_output,
+				view->x, view->y, view->x + box.width, view->y + box.height);
+		if (intersected && !intersects) {
+			wlr_surface_send_leave(view->wlr_surface, output->wlr_output);
+		}
+		if (!intersected && intersects) {
+			wlr_surface_send_enter(view->wlr_surface, output->wlr_output);
+		}
 	}
 }
 
 void view_move(struct roots_view *view, double x, double y) {
+	struct wlr_box before;
+	view_get_size(view, &before);
 	if (view->move) {
 		view->move(view, x, y);
-		return;
+	} else {
+		view->x = x;
+		view->y = y;
 	}
+}
 
-	view->x = x;
-	view->y = y;
+void view_activate(struct roots_view *view, bool activate) {
+	if (view->activate) {
+		view->activate(view, activate);
+	}
 }
 
 void view_resize(struct roots_view *view, uint32_t width, uint32_t height) {
+	struct wlr_box before;
+	view_get_size(view, &before);
 	if (view->resize) {
 		view->resize(view, width, height);
 	}
+	view_update_output(view, &before);
 }
 
 void view_move_resize(struct roots_view *view, double x, double y,
@@ -85,8 +113,8 @@ void view_close(struct roots_view *view) {
 }
 
 bool view_center(struct roots_view *view) {
-	struct wlr_box size;
-	view_get_size(view, &size);
+	struct wlr_box box;
+	view_get_size(view, &box);
 
 	struct roots_desktop *desktop = view->desktop;
 	struct wlr_cursor *cursor = desktop->server->input->cursor;
@@ -109,19 +137,20 @@ bool view_center(struct roots_view *view) {
 	int width, height;
 	wlr_output_effective_resolution(output, &width, &height);
 
-	double view_x = (double)(width - size.width) / 2 + l_output->x;
-	double view_y = (double)(height - size.height) / 2 + l_output->y;
-
+	double view_x = (double)(width - box.width) / 2 + l_output->x;
+	double view_y = (double)(height - box.height) / 2 + l_output->y;
 	view_move(view, view_x, view_y);
 
 	return true;
 }
 
 void view_setup(struct roots_view *view) {
-	view_center(view);
-
 	struct roots_input *input = view->desktop->server->input;
+	view_center(view);
 	set_view_focus(input, view->desktop, view);
+	struct wlr_box before;
+	view_get_size(view, &before);
+	view_update_output(view, &before);
 }
 
 void view_teardown(struct roots_view *view) {

rootston/output.c

@@ -20,10 +20,13 @@ static void render_surface(struct wlr_surface *surface,
 		struct roots_desktop *desktop, struct wlr_output *wlr_output,
 		struct timespec *when, double lx, double ly, float rotation) {
 	if (surface->texture->valid) {
-		int width = surface->current->buffer_width;
-		int height = surface->current->buffer_height;
+		float scale_factor = (float)wlr_output->scale / surface->current->scale;
+		int width = surface->current->buffer_width * scale_factor;
+		int height = surface->current->buffer_height * scale_factor;
 		double ox = lx, oy = ly;
 		wlr_output_layout_output_coords(desktop->layout, wlr_output, &ox, &oy);
+		ox *= wlr_output->scale;
+		oy *= wlr_output->scale;
 
 		if (wlr_output_layout_intersects(desktop->layout, wlr_output,
 				lx, ly, lx + width, ly + height)) {
@@ -32,15 +35,22 @@ static void render_surface(struct wlr_surface *surface,
 			float translate_origin[16];
 			wlr_matrix_translate(&translate_origin,
 				(int)ox + width / 2, (int)oy + height / 2, 0);
+
 			float rotate[16];
 			wlr_matrix_rotate(&rotate, rotation);
+
 			float translate_center[16];
 			wlr_matrix_translate(&translate_center, -width / 2, -height / 2, 0);
+
+			float scale[16];
+			wlr_matrix_scale(&scale, width, height, 1);
+
 			float transform[16];
 			wlr_matrix_mul(&translate_origin, &rotate, &transform);
 			wlr_matrix_mul(&transform, &translate_center, &transform);
-			wlr_surface_get_matrix(surface, &matrix,
-					&wlr_output->transform_matrix, &transform);
+			wlr_matrix_mul(&transform, &scale, &transform);
+			wlr_matrix_mul(&wlr_output->transform_matrix, &transform, &matrix);
+
 			wlr_render_with_matrix(desktop->server->renderer,
 					surface->texture, &matrix);
 
@@ -217,6 +227,7 @@ void output_add_notify(struct wl_listener *listener, void *data) {
 		if (output_config->mode.width) {
 			set_mode(wlr_output, output_config);
 		}
+		wlr_output->scale = output_config->scale;
 		wlr_output_transform(wlr_output, output_config->transform);
 		wlr_output_layout_add(desktop->layout,
 				wlr_output, output_config->x, output_config->y);

rootston/xdg_shell_v6.c

@@ -10,7 +10,7 @@
 #include "rootston/server.h"
 #include "rootston/input.h"
 
-static void get_size(struct roots_view *view, struct wlr_box *box) {
+static void get_size(const struct roots_view *view, struct wlr_box *box) {
 	assert(view->type == ROOTS_XDG_SHELL_V6_VIEW);
 	struct wlr_xdg_surface_v6 *surf = view->xdg_surface_v6;
 	// TODO: surf->geometry can be NULL

types/wlr_cursor.c

@@ -261,8 +261,8 @@ void wlr_cursor_warp_absolute(struct wlr_cursor *cur,
 		mapping = wlr_output_layout_get_box(cur->state->layout, NULL);
 	}
 
-	double x = mapping->width * x_mm + mapping->x;
-	double y = mapping->height * y_mm + mapping->y;
+	double x = x_mm > 0 ? mapping->width * x_mm + mapping->x : cur->x;
+	double y = y_mm > 0 ? mapping->height * y_mm + mapping->y : cur->y;
 
 	wlr_cursor_warp_unchecked(cur, x, y);
 }

types/wlr_output.c

@@ -231,14 +231,15 @@ void wlr_output_destroy(struct wlr_output *output) {
 
 void wlr_output_effective_resolution(struct wlr_output *output,
 		int *width, int *height) {
-	// TODO: Scale factor
 	if (output->transform % 2 == 1) {
 		*width = output->height;
 		*height = output->width;
 	} else {
 		*width = output->width;
 		*height = output->height;
 	}
+	*width /= output->scale;
+	*height /= output->scale;
 }
 
 void wlr_output_make_current(struct wlr_output *output) {
@@ -269,6 +270,8 @@ static void output_cursor_render(struct wlr_output_cursor *cursor) {
 	output_box.x = output_box.y = 0;
 	wlr_output_effective_resolution(cursor->output, &output_box.width,
 		&output_box.height);
+	output_box.width *= cursor->output->scale;
+	output_box.height *= cursor->output->scale;
 
 	struct wlr_box cursor_box;
 	output_cursor_get_box(cursor, &cursor_box);
@@ -471,7 +474,10 @@ void wlr_output_cursor_set_surface(struct wlr_output_cursor *cursor,
 	}
 }
 
-bool wlr_output_cursor_move(struct wlr_output_cursor *cursor, int x, int y) {
+bool wlr_output_cursor_move(struct wlr_output_cursor *cursor,
+		double x, double y) {
+	x *= cursor->output->scale;
+	y *= cursor->output->scale;
 	cursor->x = x;
 	cursor->y = y;
 
@@ -483,7 +489,7 @@ bool wlr_output_cursor_move(struct wlr_output_cursor *cursor, int x, int y) {
 	if (!cursor->output->impl->move_cursor) {
 		return false;
 	}
-	return cursor->output->impl->move_cursor(cursor->output, x, y);
+	return cursor->output->impl->move_cursor(cursor->output, (int)x, (int)y);
 }
 
 struct wlr_output_cursor *wlr_output_cursor_create(struct wlr_output *output) {

types/wlr_surface.c

@@ -649,8 +649,8 @@ void wlr_surface_get_matrix(struct wlr_surface *surface,
 		float (*matrix)[16],
 		const float (*projection)[16],
 		const float (*transform)[16]) {
-	int width = surface->texture->width / surface->current->scale;
-	int height = surface->texture->height / surface->current->scale;
+	int width = surface->texture->width;
+	int height = surface->texture->height;
 	float scale[16];
 	wlr_matrix_identity(matrix);
 	if (transform) {
@@ -905,3 +905,27 @@ struct wlr_subsurface *wlr_surface_subsurface_at(struct wlr_surface *surface,
 
 	return NULL;
 }
+
+void wlr_surface_send_enter(struct wlr_surface *surface,
+		struct wlr_output *output) {
+	struct wl_client *client = wl_resource_get_client(surface->resource);
+	struct wl_resource *resource;
+	wl_resource_for_each(resource, &output->wl_resources) {
+		if (client == wl_resource_get_client(resource)) {
+			wl_surface_send_enter(surface->resource, resource);
+			break;
+		}
+	}
+}
+
+void wlr_surface_send_leave(struct wlr_surface *surface,
+		struct wlr_output *output) {
+	struct wl_client *client = wl_resource_get_client(surface->resource);
+	struct wl_resource *resource;
+	wl_resource_for_each(resource, &output->wl_resources) {
+		if (client == wl_resource_get_client(resource)) {
+			wl_surface_send_leave(surface->resource, resource);
+			break;
+		}
+	}
+}