mirror of
https://github.com/NickHu/sway
synced 2024-12-29 22:23:46 +01:00
c699a86e47
The basic idea here is to apply rounding after scaling. It's not as simple as this, though, and I've detailed it in the comments for a function. In order to fix some pixel leaks in the title bar, I found it easier to change how we place rectangles to fill the area. Instead of placing two rectangles across the full width above and below the title and having shorter rectangles in the inner area, it's now pieced together in vertical chunks. This method involves drawing two less rectangles per container.
576 lines
17 KiB
C
576 lines
17 KiB
C
#define _POSIX_C_SOURCE 200809L
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#include <assert.h>
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#include <stdlib.h>
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#include <strings.h>
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#include <time.h>
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#include <wayland-server.h>
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#include <wlr/render/wlr_renderer.h>
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#include <wlr/types/wlr_box.h>
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#include <wlr/types/wlr_buffer.h>
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#include <wlr/types/wlr_matrix.h>
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#include <wlr/types/wlr_output_damage.h>
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#include <wlr/types/wlr_output_layout.h>
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#include <wlr/types/wlr_output.h>
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#include <wlr/types/wlr_surface.h>
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#include <wlr/util/region.h>
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#include "log.h"
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#include "config.h"
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#include "sway/config.h"
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#include "sway/desktop/transaction.h"
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#include "sway/input/input-manager.h"
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#include "sway/input/seat.h"
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#include "sway/layers.h"
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#include "sway/output.h"
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#include "sway/server.h"
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#include "sway/tree/arrange.h"
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#include "sway/tree/container.h"
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#include "sway/tree/root.h"
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#include "sway/tree/view.h"
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#include "sway/tree/workspace.h"
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struct sway_output *output_by_name(const char *name) {
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for (int i = 0; i < root->outputs->length; ++i) {
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struct sway_output *output = root->outputs->items[i];
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if (strcasecmp(output->wlr_output->name, name) == 0) {
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return output;
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}
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}
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return NULL;
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}
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/**
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* Rotate a child's position relative to a parent. The parent size is (pw, ph),
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* the child position is (*sx, *sy) and its size is (sw, sh).
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*/
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static void rotate_child_position(double *sx, double *sy, double sw, double sh,
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double pw, double ph, float rotation) {
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if (rotation == 0.0f) {
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return;
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}
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// Coordinates relative to the center of the subsurface
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double ox = *sx - pw/2 + sw/2,
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oy = *sy - ph/2 + sh/2;
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// Rotated coordinates
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double rx = cos(-rotation)*ox - sin(-rotation)*oy,
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ry = cos(-rotation)*oy + sin(-rotation)*ox;
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*sx = rx + pw/2 - sw/2;
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*sy = ry + ph/2 - sh/2;
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}
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struct surface_iterator_data {
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sway_surface_iterator_func_t user_iterator;
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void *user_data;
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struct sway_output *output;
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double ox, oy;
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int width, height;
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float rotation;
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};
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static bool get_surface_box(struct surface_iterator_data *data,
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struct wlr_surface *surface, int sx, int sy,
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struct wlr_box *surface_box) {
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struct sway_output *output = data->output;
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if (!wlr_surface_has_buffer(surface)) {
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return false;
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}
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int sw = surface->current.width;
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int sh = surface->current.height;
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double _sx = sx + surface->sx;
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double _sy = sy + surface->sy;
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rotate_child_position(&_sx, &_sy, sw, sh, data->width, data->height,
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data->rotation);
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struct wlr_box box = {
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.x = data->ox + _sx,
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.y = data->oy + _sy,
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.width = sw,
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.height = sh,
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};
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if (surface_box != NULL) {
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memcpy(surface_box, &box, sizeof(struct wlr_box));
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}
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struct wlr_box rotated_box;
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wlr_box_rotated_bounds(&box, data->rotation, &rotated_box);
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struct wlr_box output_box = {
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.width = output->width,
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.height = output->height,
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};
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struct wlr_box intersection;
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return wlr_box_intersection(&output_box, &rotated_box, &intersection);
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}
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static void output_for_each_surface_iterator(struct wlr_surface *surface,
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int sx, int sy, void *_data) {
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struct surface_iterator_data *data = _data;
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struct wlr_box box;
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bool intersects = get_surface_box(data, surface, sx, sy, &box);
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if (!intersects) {
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return;
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}
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data->user_iterator(data->output, surface, &box, data->rotation,
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data->user_data);
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}
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void output_surface_for_each_surface(struct sway_output *output,
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struct wlr_surface *surface, double ox, double oy,
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sway_surface_iterator_func_t iterator, void *user_data) {
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struct surface_iterator_data data = {
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.user_iterator = iterator,
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.user_data = user_data,
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.output = output,
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.ox = ox,
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.oy = oy,
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.width = surface->current.width,
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.height = surface->current.height,
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.rotation = 0,
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};
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wlr_surface_for_each_surface(surface,
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output_for_each_surface_iterator, &data);
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}
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void output_view_for_each_surface(struct sway_output *output,
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struct sway_view *view, sway_surface_iterator_func_t iterator,
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void *user_data) {
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struct surface_iterator_data data = {
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.user_iterator = iterator,
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.user_data = user_data,
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.output = output,
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.ox = view->container->current.view_x - output->wlr_output->lx
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- view->geometry.x,
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.oy = view->container->current.view_y - output->wlr_output->ly
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- view->geometry.y,
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.width = view->container->current.view_width,
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.height = view->container->current.view_height,
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.rotation = 0, // TODO
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};
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view_for_each_surface(view, output_for_each_surface_iterator, &data);
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}
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void output_view_for_each_popup(struct sway_output *output,
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struct sway_view *view, sway_surface_iterator_func_t iterator,
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void *user_data) {
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struct surface_iterator_data data = {
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.user_iterator = iterator,
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.user_data = user_data,
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.output = output,
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.ox = view->container->current.view_x - output->wlr_output->lx
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- view->geometry.x,
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.oy = view->container->current.view_y - output->wlr_output->ly
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- view->geometry.y,
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.width = view->container->current.view_width,
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.height = view->container->current.view_height,
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.rotation = 0, // TODO
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};
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view_for_each_popup(view, output_for_each_surface_iterator, &data);
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}
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void output_layer_for_each_surface(struct sway_output *output,
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struct wl_list *layer_surfaces, sway_surface_iterator_func_t iterator,
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void *user_data) {
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struct sway_layer_surface *layer_surface;
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wl_list_for_each(layer_surface, layer_surfaces, link) {
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struct wlr_layer_surface_v1 *wlr_layer_surface_v1 =
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layer_surface->layer_surface;
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output_surface_for_each_surface(output, wlr_layer_surface_v1->surface,
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layer_surface->geo.x, layer_surface->geo.y, iterator,
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user_data);
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}
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}
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#ifdef HAVE_XWAYLAND
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void output_unmanaged_for_each_surface(struct sway_output *output,
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struct wl_list *unmanaged, sway_surface_iterator_func_t iterator,
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void *user_data) {
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struct sway_xwayland_unmanaged *unmanaged_surface;
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wl_list_for_each(unmanaged_surface, unmanaged, link) {
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struct wlr_xwayland_surface *xsurface =
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unmanaged_surface->wlr_xwayland_surface;
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double ox = unmanaged_surface->lx - output->wlr_output->lx;
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double oy = unmanaged_surface->ly - output->wlr_output->ly;
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output_surface_for_each_surface(output, xsurface->surface, ox, oy,
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iterator, user_data);
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}
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}
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#endif
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void output_drag_icons_for_each_surface(struct sway_output *output,
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struct wl_list *drag_icons, sway_surface_iterator_func_t iterator,
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void *user_data) {
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struct sway_drag_icon *drag_icon;
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wl_list_for_each(drag_icon, drag_icons, link) {
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double ox = drag_icon->x - output->wlr_output->lx;
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double oy = drag_icon->y - output->wlr_output->ly;
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if (drag_icon->wlr_drag_icon->mapped) {
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output_surface_for_each_surface(output,
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drag_icon->wlr_drag_icon->surface, ox, oy,
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iterator, user_data);
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}
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}
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}
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static int scale_length(int length, int offset, float scale) {
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return round((offset + length) * scale) - round(offset * scale);
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}
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static void scale_box(struct wlr_box *box, float scale) {
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box->width = scale_length(box->width, box->x, scale);
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box->height = scale_length(box->height, box->y, scale);
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box->x = round(box->x * scale);
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box->y = round(box->y * scale);
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}
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struct sway_workspace *output_get_active_workspace(struct sway_output *output) {
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struct sway_seat *seat = input_manager_current_seat(input_manager);
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struct sway_node *focus = seat_get_active_tiling_child(seat, &output->node);
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if (!focus) {
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return output->workspaces->items[0];
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}
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return focus->sway_workspace;
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}
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bool output_has_opaque_overlay_layer_surface(struct sway_output *output) {
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struct wlr_layer_surface_v1 *wlr_layer_surface_v1;
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wl_list_for_each(wlr_layer_surface_v1, &server.layer_shell->surfaces, link) {
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if (wlr_layer_surface_v1->output != output->wlr_output ||
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wlr_layer_surface_v1->layer != ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY) {
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continue;
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}
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struct wlr_surface *wlr_surface = wlr_layer_surface_v1->surface;
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struct sway_layer_surface *sway_layer_surface =
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layer_from_wlr_layer_surface_v1(wlr_layer_surface_v1);
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pixman_box32_t output_box = {
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.x2 = output->width,
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.y2 = output->height,
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};
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pixman_region32_t surface_opaque_box;
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pixman_region32_init(&surface_opaque_box);
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pixman_region32_copy(&surface_opaque_box, &wlr_surface->opaque_region);
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pixman_region32_translate(&surface_opaque_box,
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sway_layer_surface->geo.x, sway_layer_surface->geo.y);
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bool contains = pixman_region32_contains_rectangle(&surface_opaque_box,
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&output_box);
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pixman_region32_fini(&surface_opaque_box);
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if (contains) {
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return true;
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}
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}
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return false;
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}
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static void send_frame_done_iterator(struct sway_output *output,
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struct wlr_surface *surface, struct wlr_box *box, float rotation,
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void *_data) {
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struct timespec *when = _data;
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wlr_surface_send_frame_done(surface, when);
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}
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static void send_frame_done_layer(struct sway_output *output,
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struct wl_list *layer_surfaces, struct timespec *when) {
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output_layer_for_each_surface(output, layer_surfaces,
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send_frame_done_iterator, when);
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}
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#ifdef HAVE_XWAYLAND
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static void send_frame_done_unmanaged(struct sway_output *output,
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struct wl_list *unmanaged, struct timespec *when) {
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output_unmanaged_for_each_surface(output, unmanaged,
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send_frame_done_iterator, when);
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}
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#endif
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static void send_frame_done_drag_icons(struct sway_output *output,
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struct wl_list *drag_icons, struct timespec *when) {
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output_drag_icons_for_each_surface(output, drag_icons,
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send_frame_done_iterator, when);
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}
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struct send_frame_done_data {
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struct sway_output *output;
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struct timespec *when;
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};
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static void send_frame_done_container_iterator(struct sway_container *con,
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void *_data) {
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if (!con->view) {
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return;
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}
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if (!view_is_visible(con->view)) {
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return;
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}
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struct send_frame_done_data *data = _data;
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output_view_for_each_surface(data->output, con->view,
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send_frame_done_iterator, data->when);
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}
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static void send_frame_done(struct sway_output *output, struct timespec *when) {
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if (output_has_opaque_overlay_layer_surface(output)) {
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goto send_frame_overlay;
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}
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struct send_frame_done_data data = {
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.output = output,
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.when = when,
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};
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struct sway_workspace *workspace = output_get_active_workspace(output);
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if (workspace->current.fullscreen) {
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send_frame_done_container_iterator(
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workspace->current.fullscreen, &data);
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container_for_each_child(workspace->current.fullscreen,
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send_frame_done_container_iterator, &data);
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for (int i = 0; i < workspace->current.floating->length; ++i) {
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struct sway_container *floater =
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workspace->current.floating->items[i];
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if (container_is_transient_for(floater,
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workspace->current.fullscreen)) {
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send_frame_done_container_iterator(floater, &data);
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}
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}
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#ifdef HAVE_XWAYLAND
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send_frame_done_unmanaged(output, &root->xwayland_unmanaged, when);
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#endif
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} else {
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send_frame_done_layer(output,
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&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND], when);
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send_frame_done_layer(output,
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&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM], when);
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workspace_for_each_container(workspace,
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send_frame_done_container_iterator, &data);
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#ifdef HAVE_XWAYLAND
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send_frame_done_unmanaged(output, &root->xwayland_unmanaged, when);
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#endif
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send_frame_done_layer(output,
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&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_TOP], when);
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}
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send_frame_overlay:
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send_frame_done_layer(output,
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&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY], when);
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send_frame_done_drag_icons(output, &root->drag_icons, when);
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}
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static void damage_handle_frame(struct wl_listener *listener, void *data) {
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struct sway_output *output =
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wl_container_of(listener, output, damage_frame);
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if (!output->wlr_output->enabled) {
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return;
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}
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struct timespec now;
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clock_gettime(CLOCK_MONOTONIC, &now);
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bool needs_swap;
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pixman_region32_t damage;
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pixman_region32_init(&damage);
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if (!wlr_output_damage_make_current(output->damage, &needs_swap, &damage)) {
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return;
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}
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if (needs_swap) {
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output_render(output, &now, &damage);
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}
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pixman_region32_fini(&damage);
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// Send frame done to all visible surfaces
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send_frame_done(output, &now);
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}
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void output_damage_whole(struct sway_output *output) {
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// The output can exist with no wlr_output if it's just been disconnected
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// and the transaction to evacuate it has't completed yet.
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if (output && output->wlr_output) {
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wlr_output_damage_add_whole(output->damage);
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}
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}
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static void damage_surface_iterator(struct sway_output *output,
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struct wlr_surface *surface, struct wlr_box *_box, float rotation,
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void *_data) {
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bool *data = _data;
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bool whole = *data;
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struct wlr_box box = *_box;
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scale_box(&box, output->wlr_output->scale);
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int center_x = box.x + box.width/2;
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int center_y = box.y + box.height/2;
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if (pixman_region32_not_empty(&surface->buffer_damage)) {
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enum wl_output_transform transform =
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wlr_output_transform_invert(surface->current.transform);
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pixman_region32_t damage;
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pixman_region32_init(&damage);
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pixman_region32_copy(&damage, &surface->buffer_damage);
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wlr_region_transform(&damage, &damage, transform,
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surface->current.buffer_width, surface->current.buffer_height);
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wlr_region_scale(&damage, &damage,
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output->wlr_output->scale / (float)surface->current.scale);
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if (ceil(output->wlr_output->scale) > surface->current.scale) {
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// When scaling up a surface, it'll become blurry so we need to
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// expand the damage region
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wlr_region_expand(&damage, &damage,
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ceil(output->wlr_output->scale) - surface->current.scale);
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}
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pixman_region32_translate(&damage, box.x, box.y);
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wlr_region_rotated_bounds(&damage, &damage, rotation,
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center_x, center_y);
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wlr_output_damage_add(output->damage, &damage);
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pixman_region32_fini(&damage);
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}
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if (whole) {
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wlr_box_rotated_bounds(&box, rotation, &box);
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wlr_output_damage_add_box(output->damage, &box);
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}
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wlr_output_schedule_frame(output->wlr_output);
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}
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void output_damage_surface(struct sway_output *output, double ox, double oy,
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struct wlr_surface *surface, bool whole) {
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output_surface_for_each_surface(output, surface, ox, oy,
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damage_surface_iterator, &whole);
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}
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static void output_damage_view(struct sway_output *output,
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struct sway_view *view, bool whole) {
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if (!view_is_visible(view)) {
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return;
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}
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output_view_for_each_surface(output, view, damage_surface_iterator, &whole);
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}
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void output_damage_from_view(struct sway_output *output,
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struct sway_view *view) {
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output_damage_view(output, view, false);
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}
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// Expecting an unscaled box in layout coordinates
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void output_damage_box(struct sway_output *output, struct wlr_box *_box) {
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struct wlr_box box;
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memcpy(&box, _box, sizeof(struct wlr_box));
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box.x -= output->wlr_output->lx;
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box.y -= output->wlr_output->ly;
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scale_box(&box, output->wlr_output->scale);
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wlr_output_damage_add_box(output->damage, &box);
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}
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static void output_damage_whole_container_iterator(struct sway_container *con,
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void *data) {
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if (!sway_assert(con->view, "expected a view")) {
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return;
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}
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struct sway_output *output = data;
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output_damage_view(output, con->view, true);
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}
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void output_damage_whole_container(struct sway_output *output,
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struct sway_container *con) {
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// Pad the box by 1px, because the width is a double and might be a fraction
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struct wlr_box box = {
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.x = con->current.con_x - output->wlr_output->lx - 1,
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.y = con->current.con_y - output->wlr_output->ly - 1,
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.width = con->current.con_width + 2,
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.height = con->current.con_height + 2,
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};
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scale_box(&box, output->wlr_output->scale);
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wlr_output_damage_add_box(output->damage, &box);
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}
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static void damage_handle_destroy(struct wl_listener *listener, void *data) {
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struct sway_output *output =
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wl_container_of(listener, output, damage_destroy);
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output_disable(output);
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transaction_commit_dirty();
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}
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static void handle_destroy(struct wl_listener *listener, void *data) {
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struct sway_output *output = wl_container_of(listener, output, destroy);
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wl_signal_emit(&output->events.destroy, output);
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if (output->enabled) {
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output_disable(output);
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}
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output_begin_destroy(output);
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transaction_commit_dirty();
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}
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static void handle_mode(struct wl_listener *listener, void *data) {
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struct sway_output *output = wl_container_of(listener, output, mode);
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arrange_layers(output);
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arrange_output(output);
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transaction_commit_dirty();
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}
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static void handle_transform(struct wl_listener *listener, void *data) {
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struct sway_output *output = wl_container_of(listener, output, transform);
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arrange_layers(output);
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arrange_output(output);
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transaction_commit_dirty();
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}
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static void update_textures(struct sway_container *con, void *data) {
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container_update_title_textures(con);
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if (con->view) {
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view_update_marks_textures(con->view);
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}
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}
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static void handle_scale(struct wl_listener *listener, void *data) {
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struct sway_output *output = wl_container_of(listener, output, scale);
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arrange_layers(output);
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output_for_each_container(output, update_textures, NULL);
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arrange_output(output);
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transaction_commit_dirty();
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}
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void handle_new_output(struct wl_listener *listener, void *data) {
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struct sway_server *server = wl_container_of(listener, server, new_output);
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struct wlr_output *wlr_output = data;
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wlr_log(WLR_DEBUG, "New output %p: %s", wlr_output, wlr_output->name);
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struct sway_output *output = output_create(wlr_output);
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if (!output) {
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return;
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}
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output->server = server;
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output->damage = wlr_output_damage_create(wlr_output);
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output->destroy.notify = handle_destroy;
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struct output_config *oc = output_find_config(output);
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if (!oc || oc->enabled) {
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output_enable(output, oc);
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}
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transaction_commit_dirty();
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}
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void output_add_listeners(struct sway_output *output) {
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output->mode.notify = handle_mode;
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output->transform.notify = handle_transform;
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output->scale.notify = handle_scale;
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output->damage_frame.notify = damage_handle_frame;
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output->damage_destroy.notify = damage_handle_destroy;
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}
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