diff options
Diffstat (limited to 'sway/desktop/output.c')
| -rw-r--r-- | sway/desktop/output.c | 579 |
1 files changed, 579 insertions, 0 deletions
diff --git a/sway/desktop/output.c b/sway/desktop/output.c new file mode 100644 index 00000000..1b3143d0 --- /dev/null +++ b/sway/desktop/output.c @@ -0,0 +1,579 @@ +#define _POSIX_C_SOURCE 200809L +#include <assert.h> +#include <stdlib.h> +#include <strings.h> +#include <time.h> +#include <wayland-server.h> +#include <wlr/render/wlr_renderer.h> +#include <wlr/types/wlr_box.h> +#include <wlr/types/wlr_matrix.h> +#include <wlr/types/wlr_output_damage.h> +#include <wlr/types/wlr_output_layout.h> +#include <wlr/types/wlr_output.h> +#include <wlr/types/wlr_surface.h> +#include <wlr/types/wlr_wl_shell.h> +#include <wlr/util/region.h> +#include "log.h" +#include "sway/input/input-manager.h" +#include "sway/input/seat.h" +#include "sway/layers.h" +#include "sway/output.h" +#include "sway/server.h" +#include "sway/tree/container.h" +#include "sway/tree/layout.h" +#include "sway/tree/view.h" + +struct sway_container *output_by_name(const char *name) { + for (int i = 0; i < root_container.children->length; ++i) { + struct sway_container *output = root_container.children->items[i]; + if (strcasecmp(output->name, name) == 0) { + return output; + } + } + return NULL; +} + +/** + * Rotate a child's position relative to a parent. The parent size is (pw, ph), + * the child position is (*sx, *sy) and its size is (sw, sh). + */ +static void rotate_child_position(double *sx, double *sy, double sw, double sh, + double pw, double ph, float rotation) { + if (rotation == 0.0f) { + return; + } + + // Coordinates relative to the center of the subsurface + double ox = *sx - pw/2 + sw/2, + oy = *sy - ph/2 + sh/2; + // Rotated coordinates + double rx = cos(-rotation)*ox - sin(-rotation)*oy, + ry = cos(-rotation)*oy + sin(-rotation)*ox; + *sx = rx + pw/2 - sw/2; + *sy = ry + ph/2 - sh/2; +} + +/** + * Contains a surface's root geometry information. For instance, when rendering + * a popup, this will contain the parent view's position and size. + */ +struct root_geometry { + double x, y; + int width, height; + float rotation; +}; + +static bool get_surface_box(struct root_geometry *geo, + struct sway_output *output, struct wlr_surface *surface, int sx, int sy, + struct wlr_box *surface_box) { + if (!wlr_surface_has_buffer(surface)) { + return false; + } + + int sw = surface->current->width; + int sh = surface->current->height; + + double _sx = sx, _sy = sy; + rotate_child_position(&_sx, &_sy, sw, sh, geo->width, geo->height, + geo->rotation); + + struct wlr_box box = { + .x = geo->x + _sx, + .y = geo->y + _sy, + .width = sw, + .height = sh, + }; + if (surface_box != NULL) { + memcpy(surface_box, &box, sizeof(struct wlr_box)); + } + + struct wlr_box rotated_box; + wlr_box_rotated_bounds(&box, geo->rotation, &rotated_box); + + struct wlr_box output_box = { + .width = output->swayc->width, + .height = output->swayc->height, + }; + + struct wlr_box intersection; + return wlr_box_intersection(&output_box, &rotated_box, &intersection); +} + +static void surface_for_each_surface(struct wlr_surface *surface, + double ox, double oy, struct root_geometry *geo, + wlr_surface_iterator_func_t iterator, void *user_data) { + geo->x = ox; + geo->y = oy; + geo->width = surface->current->width; + geo->height = surface->current->height; + geo->rotation = 0; + + wlr_surface_for_each_surface(surface, iterator, user_data); +} + +static void output_view_for_each_surface(struct sway_view *view, + struct root_geometry *geo, wlr_surface_iterator_func_t iterator, + void *user_data) { + geo->x = view->swayc->x; + geo->y = view->swayc->y; + geo->width = view->surface->current->width; + geo->height = view->surface->current->height; + geo->rotation = 0; // TODO + + view_for_each_surface(view, iterator, user_data); +} + +static void layer_for_each_surface(struct wl_list *layer_surfaces, + struct root_geometry *geo, wlr_surface_iterator_func_t iterator, + void *user_data) { + struct sway_layer_surface *layer_surface; + wl_list_for_each(layer_surface, layer_surfaces, link) { + struct wlr_layer_surface *wlr_layer_surface = + layer_surface->layer_surface; + surface_for_each_surface(wlr_layer_surface->surface, + layer_surface->geo.x, layer_surface->geo.y, geo, iterator, + user_data); + } +} + +static void unmanaged_for_each_surface(struct wl_list *unmanaged, + struct sway_output *output, struct root_geometry *geo, + wlr_surface_iterator_func_t iterator, void *user_data) { + struct sway_xwayland_unmanaged *unmanaged_surface; + wl_list_for_each(unmanaged_surface, unmanaged, link) { + struct wlr_xwayland_surface *xsurface = + unmanaged_surface->wlr_xwayland_surface; + double ox = unmanaged_surface->lx - output->swayc->x; + double oy = unmanaged_surface->ly - output->swayc->y; + + surface_for_each_surface(xsurface->surface, ox, oy, geo, + iterator, user_data); + } +} + +static void scale_box(struct wlr_box *box, float scale) { + box->x *= scale; + box->y *= scale; + box->width *= scale; + box->height *= scale; +} + +struct render_data { + struct root_geometry root_geo; + struct sway_output *output; + float alpha; +}; + +static void render_surface_iterator(struct wlr_surface *surface, int sx, int sy, + void *_data) { + struct render_data *data = _data; + struct wlr_output *wlr_output = data->output->wlr_output; + float rotation = data->root_geo.rotation; + float alpha = data->alpha; + + if (!wlr_surface_has_buffer(surface)) { + return; + } + + struct wlr_box box; + bool intersects = get_surface_box(&data->root_geo, data->output, surface, + sx, sy, &box); + if (!intersects) { + return; + } + + struct wlr_renderer *renderer = + wlr_backend_get_renderer(wlr_output->backend); + if (!sway_assert(renderer != NULL, + "expected the output backend to have a renderer")) { + return; + } + + scale_box(&box, wlr_output->scale); + + float matrix[9]; + enum wl_output_transform transform = + wlr_output_transform_invert(surface->current->transform); + wlr_matrix_project_box(matrix, &box, transform, rotation, + wlr_output->transform_matrix); + + wlr_render_texture_with_matrix(renderer, surface->texture, + matrix, alpha); +} + +static void render_layer(struct sway_output *output, + struct wl_list *layer_surfaces) { + struct render_data data = { .output = output, .alpha = 1.0f }; + layer_for_each_surface(layer_surfaces, &data.root_geo, + render_surface_iterator, &data); +} + +static void render_unmanaged(struct sway_output *output, + struct wl_list *unmanaged) { + struct render_data data = { .output = output, .alpha = 1.0f }; + unmanaged_for_each_surface(unmanaged, output, &data.root_geo, + render_surface_iterator, &data); +} + +static void render_container_iterator(struct sway_container *con, + void *_data) { + struct sway_output *output = _data; + if (!sway_assert(con->type == C_VIEW, "expected a view")) { + return; + } + struct render_data data = { .output = output, .alpha = con->alpha }; + output_view_for_each_surface(con->sway_view, &data.root_geo, + render_surface_iterator, &data); +} + +static void render_container(struct sway_output *output, + struct sway_container *con) { + container_descendants(con, C_VIEW, render_container_iterator, output); +} + +static struct sway_container *output_get_active_workspace( + struct sway_output *output) { + struct sway_seat *seat = input_manager_current_seat(input_manager); + struct sway_container *focus = + seat_get_focus_inactive(seat, output->swayc); + if (!focus) { + // We've never been to this output before + focus = output->swayc->children->items[0]; + } + struct sway_container *workspace = focus; + if (workspace->type != C_WORKSPACE) { + workspace = container_parent(workspace, C_WORKSPACE); + } + return workspace; +} + +static void render_output(struct sway_output *output, struct timespec *when, + pixman_region32_t *damage) { + struct wlr_output *wlr_output = output->wlr_output; + + struct wlr_renderer *renderer = + wlr_backend_get_renderer(wlr_output->backend); + if (!sway_assert(renderer != NULL, + "expected the output backend to have a renderer")) { + return; + } + + wlr_renderer_begin(renderer, wlr_output->width, wlr_output->height); + + if (!pixman_region32_not_empty(damage)) { + // Output isn't damaged but needs buffer swap + goto renderer_end; + } + + // TODO: don't damage the whole output + int width, height; + wlr_output_transformed_resolution(wlr_output, &width, &height); + pixman_region32_union_rect(damage, damage, 0, 0, width, height); + + float clear_color[] = {0.25f, 0.25f, 0.25f, 1.0f}; + wlr_renderer_clear(renderer, clear_color); + + render_layer(output, &output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND]); + render_layer(output, &output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM]); + + struct sway_container *workspace = output_get_active_workspace(output); + render_container(output, workspace); + + render_unmanaged(output, &root_container.sway_root->xwayland_unmanaged); + + // TODO: consider revising this when fullscreen windows are supported + render_layer(output, &output->layers[ZWLR_LAYER_SHELL_V1_LAYER_TOP]); + render_layer(output, &output->layers[ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY]); + +renderer_end: + if (root_container.sway_root->debug_tree) { + wlr_render_texture(renderer, root_container.sway_root->debug_tree, + wlr_output->transform_matrix, 0, 0, 1); + } + + wlr_renderer_end(renderer); + if (!wlr_output_damage_swap_buffers(output->damage, when, damage)) { + return; + } + output->last_frame = *when; +} + +struct send_frame_done_data { + struct root_geometry root_geo; + struct sway_output *output; + struct timespec *when; +}; + +static void send_frame_done_iterator(struct wlr_surface *surface, + int sx, int sy, void *_data) { + struct send_frame_done_data *data = _data; + + bool intersects = get_surface_box(&data->root_geo, data->output, surface, + sx, sy, NULL); + if (intersects) { + wlr_surface_send_frame_done(surface, data->when); + } +} + +static void send_frame_done_layer(struct send_frame_done_data *data, + struct wl_list *layer_surfaces) { + layer_for_each_surface(layer_surfaces, &data->root_geo, + send_frame_done_iterator, data); +} + +static void send_frame_done_unmanaged(struct send_frame_done_data *data, + struct wl_list *unmanaged) { + unmanaged_for_each_surface(unmanaged, data->output, &data->root_geo, + send_frame_done_iterator, data); +} + +static void send_frame_done_container_iterator(struct sway_container *con, + void *_data) { + struct send_frame_done_data *data = _data; + if (!sway_assert(con->type == C_VIEW, "expected a view")) { + return; + } + output_view_for_each_surface(con->sway_view, &data->root_geo, + send_frame_done_iterator, data); +} + +static void send_frame_done_container(struct send_frame_done_data *data, + struct sway_container *con) { + container_descendants(con, C_VIEW, + send_frame_done_container_iterator, data); +} + +static void send_frame_done(struct sway_output *output, struct timespec *when) { + struct send_frame_done_data data = { + .output = output, + .when = when, + }; + + send_frame_done_layer(&data, + &output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND]); + send_frame_done_layer(&data, + &output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM]); + + struct sway_container *workspace = output_get_active_workspace(output); + send_frame_done_container(&data, workspace); + + send_frame_done_unmanaged(&data, + &root_container.sway_root->xwayland_unmanaged); + + send_frame_done_layer(&data, + &output->layers[ZWLR_LAYER_SHELL_V1_LAYER_TOP]); + send_frame_done_layer(&data, + &output->layers[ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY]); +} + +static void damage_handle_frame(struct wl_listener *listener, void *data) { + struct sway_output *output = + wl_container_of(listener, output, damage_frame); + + if (!output->wlr_output->enabled) { + return; + } + + struct timespec now; + clock_gettime(CLOCK_MONOTONIC, &now); + + bool needs_swap; + pixman_region32_t damage; + pixman_region32_init(&damage); + if (!wlr_output_damage_make_current(output->damage, &needs_swap, &damage)) { + return; + } + + if (needs_swap) { + render_output(output, &now, &damage); + } + + pixman_region32_fini(&damage); + + // Send frame done to all visible surfaces + send_frame_done(output, &now); +} + +void output_damage_whole(struct sway_output *output) { + wlr_output_damage_add_whole(output->damage); +} + +struct damage_data { + struct root_geometry root_geo; + struct sway_output *output; + bool whole; +}; + +static void damage_surface_iterator(struct wlr_surface *surface, int sx, int sy, + void *_data) { + struct damage_data *data = _data; + struct sway_output *output = data->output; + float rotation = data->root_geo.rotation; + bool whole = data->whole; + + struct wlr_box box; + bool intersects = get_surface_box(&data->root_geo, data->output, surface, + sx, sy, &box); + if (!intersects) { + return; + } + + scale_box(&box, output->wlr_output->scale); + + if (whole) { + wlr_box_rotated_bounds(&box, rotation, &box); + wlr_output_damage_add_box(output->damage, &box); + } else { + int center_x = box.x + box.width/2; + int center_y = box.y + box.height/2; + + pixman_region32_t damage; + pixman_region32_init(&damage); + pixman_region32_copy(&damage, &surface->current->surface_damage); + wlr_region_scale(&damage, &damage, output->wlr_output->scale); + if (ceil(output->wlr_output->scale) > surface->current->scale) { + // When scaling up a surface, it'll become blurry so we need to + // expand the damage region + wlr_region_expand(&damage, &damage, + ceil(output->wlr_output->scale) - surface->current->scale); + } + pixman_region32_translate(&damage, box.x, box.y); + wlr_region_rotated_bounds(&damage, &damage, rotation, + center_x, center_y); + wlr_output_damage_add(output->damage, &damage); + pixman_region32_fini(&damage); + } +} + +void output_damage_surface(struct sway_output *output, double ox, double oy, + struct wlr_surface *surface, bool whole) { + struct damage_data data = { + .output = output, + .whole = whole, + }; + + surface_for_each_surface(surface, ox, oy, &data.root_geo, + damage_surface_iterator, &data); +} + +void output_damage_view(struct sway_output *output, struct sway_view *view, + bool whole) { + if (!sway_assert(view->swayc != NULL, "expected a view in the tree")) { + return; + } + + struct damage_data data = { + .output = output, + .whole = whole, + }; + + output_view_for_each_surface(view, &data.root_geo, + damage_surface_iterator, &data); +} + +static void output_damage_whole_container_iterator(struct sway_container *con, + void *data) { + struct sway_output *output = data; + + if (!sway_assert(con->type == C_VIEW, "expected a view")) { + return; + } + + output_damage_view(output, con->sway_view, true); +} + +void output_damage_whole_container(struct sway_output *output, + struct sway_container *con) { + float scale = output->wlr_output->scale; + struct wlr_box box = { + .x = con->x * scale, + .y = con->y * scale, + .width = con->width * scale, + .height = con->height * scale, + }; + wlr_output_damage_add_box(output->damage, &box); + + container_descendants(con, C_VIEW, output_damage_whole_container_iterator, + output); +} + +static void damage_handle_destroy(struct wl_listener *listener, void *data) { + struct sway_output *output = + wl_container_of(listener, output, damage_destroy); + container_destroy(output->swayc); +} + +static void handle_destroy(struct wl_listener *listener, void *data) { + struct sway_output *output = wl_container_of(listener, output, destroy); + container_destroy(output->swayc); +} + +static void handle_mode(struct wl_listener *listener, void *data) { + struct sway_output *output = wl_container_of(listener, output, mode); + arrange_layers(output); + arrange_windows(output->swayc, -1, -1); +} + +static void handle_transform(struct wl_listener *listener, void *data) { + struct sway_output *output = wl_container_of(listener, output, transform); + arrange_layers(output); + arrange_windows(output->swayc, -1, -1); +} + +static void handle_scale(struct wl_listener *listener, void *data) { + struct sway_output *output = wl_container_of(listener, output, scale); + arrange_layers(output); + arrange_windows(output->swayc, -1, -1); +} + +void handle_new_output(struct wl_listener *listener, void *data) { + struct sway_server *server = wl_container_of(listener, server, new_output); + struct wlr_output *wlr_output = data; + wlr_log(L_DEBUG, "New output %p: %s", wlr_output, wlr_output->name); + + struct sway_output *output = calloc(1, sizeof(struct sway_output)); + if (!output) { + return; + } + output->wlr_output = wlr_output; + wlr_output->data = output; + output->server = server; + + if (!wl_list_empty(&wlr_output->modes)) { + struct wlr_output_mode *mode = + wl_container_of(wlr_output->modes.prev, mode, link); + wlr_output_set_mode(wlr_output, mode); + } + + output->damage = wlr_output_damage_create(wlr_output); + + output->swayc = output_create(output); + if (!output->swayc) { + free(output); + return; + } + + size_t len = sizeof(output->layers) / sizeof(output->layers[0]); + for (size_t i = 0; i < len; ++i) { + wl_list_init(&output->layers[i]); + } + + input_manager_configure_xcursor(input_manager); + + wl_signal_add(&wlr_output->events.destroy, &output->destroy); + output->destroy.notify = handle_destroy; + wl_signal_add(&wlr_output->events.mode, &output->mode); + output->mode.notify = handle_mode; + wl_signal_add(&wlr_output->events.transform, &output->transform); + output->transform.notify = handle_transform; + wl_signal_add(&wlr_output->events.scale, &output->scale); + output->scale.notify = handle_scale; + + wl_signal_add(&output->damage->events.frame, &output->damage_frame); + output->damage_frame.notify = damage_handle_frame; + wl_signal_add(&output->damage->events.destroy, &output->damage_destroy); + output->damage_destroy.notify = damage_handle_destroy; + + arrange_layers(output); + arrange_windows(&root_container, -1, -1); +} |