Merge pull request #1476 from emersion/fullscreen-shell
fullscreen-shell-v1: initial protocol implementationmaster
Drew DeVault
6 years ago
committed by
GitHub
commit
d4de2bd708
@ -0,0 +1,248 @@
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#define _POSIX_C_SOURCE 200112L
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#include <getopt.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include <unistd.h>
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#include <wayland-server.h>
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#include <wlr/backend.h>
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#include <wlr/render/wlr_renderer.h>
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#include <wlr/types/wlr_compositor.h>
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#include <wlr/types/wlr_fullscreen_shell_v1.h>
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#include <wlr/types/wlr_linux_dmabuf_v1.h>
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#include <wlr/types/wlr_matrix.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/log.h>
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/**
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* A minimal fullscreen-shell server. It only supports rendering.
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*/
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struct fullscreen_server {
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struct wl_display *wl_display;
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struct wlr_backend *backend;
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struct wlr_renderer *renderer;
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struct wlr_fullscreen_shell_v1 *fullscreen_shell;
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struct wl_listener present_surface;
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struct wlr_output_layout *output_layout;
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struct wl_list outputs;
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struct wl_listener new_output;
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};
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struct fullscreen_output {
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struct wl_list link;
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struct fullscreen_server *server;
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struct wlr_output *wlr_output;
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struct wlr_surface *surface;
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struct wl_listener surface_destroy;
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struct wl_listener frame;
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};
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struct render_data {
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struct wlr_output *output;
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struct wlr_renderer *renderer;
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struct tinywl_view *view;
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struct timespec *when;
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};
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static void render_surface(struct wlr_surface *surface,
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int sx, int sy, void *data) {
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struct render_data *rdata = data;
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struct wlr_output *output = rdata->output;
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struct wlr_texture *texture = wlr_surface_get_texture(surface);
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if (texture == NULL) {
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return;
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}
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struct wlr_box box = {
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.x = sx * output->scale,
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.y = sy * output->scale,
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.width = surface->current.width * output->scale,
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.height = surface->current.height * output->scale,
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};
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float matrix[9];
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enum wl_output_transform transform =
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wlr_output_transform_invert(surface->current.transform);
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wlr_matrix_project_box(matrix, &box, transform, 0,
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output->transform_matrix);
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wlr_render_texture_with_matrix(rdata->renderer, texture, matrix, 1);
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wlr_surface_send_frame_done(surface, rdata->when);
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}
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static void output_handle_frame(struct wl_listener *listener, void *data) {
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struct fullscreen_output *output =
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wl_container_of(listener, output, frame);
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struct wlr_renderer *renderer = output->server->renderer;
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struct timespec now;
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clock_gettime(CLOCK_MONOTONIC, &now);
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int width, height;
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wlr_output_effective_resolution(output->wlr_output, &width, &height);
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if (!wlr_output_make_current(output->wlr_output, NULL)) {
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return;
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}
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wlr_renderer_begin(renderer, width, height);
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float color[4] = {0.3, 0.3, 0.3, 1.0};
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wlr_renderer_clear(renderer, color);
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if (output->surface != NULL) {
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struct render_data rdata = {
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.output = output->wlr_output,
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.renderer = renderer,
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.when = &now,
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};
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wlr_surface_for_each_surface(output->surface, render_surface, &rdata);
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}
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wlr_renderer_end(renderer);
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wlr_output_swap_buffers(output->wlr_output, NULL, NULL);
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}
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static void output_set_surface(struct fullscreen_output *output,
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struct wlr_surface *surface);
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static void output_handle_surface_destroy(struct wl_listener *listener,
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void *data) {
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struct fullscreen_output *output =
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wl_container_of(listener, output, surface_destroy);
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output_set_surface(output, NULL);
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}
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static void output_set_surface(struct fullscreen_output *output,
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struct wlr_surface *surface) {
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if (output->surface == surface) {
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return;
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}
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if (output->surface != NULL) {
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wl_list_remove(&output->surface_destroy.link);
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output->surface = NULL;
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}
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if (surface != NULL) {
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output->surface_destroy.notify = output_handle_surface_destroy;
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wl_signal_add(&surface->events.destroy, &output->surface_destroy);
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output->surface = surface;
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}
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wlr_log(WLR_DEBUG, "Presenting surface %p on output %s",
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surface, output->wlr_output->name);
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}
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static void server_handle_new_output(struct wl_listener *listener, void *data) {
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struct fullscreen_server *server =
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wl_container_of(listener, server, new_output);
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struct wlr_output *wlr_output = data;
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if (!wl_list_empty(&wlr_output->modes)) {
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struct wlr_output_mode *mode =
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wl_container_of(wlr_output->modes.prev, mode, link);
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wlr_output_set_mode(wlr_output, mode);
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}
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struct fullscreen_output *output =
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calloc(1, sizeof(struct fullscreen_output));
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output->wlr_output = wlr_output;
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output->server = server;
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output->frame.notify = output_handle_frame;
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wl_signal_add(&wlr_output->events.frame, &output->frame);
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wl_list_insert(&server->outputs, &output->link);
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wlr_output_layout_add_auto(server->output_layout, wlr_output);
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wlr_output_create_global(wlr_output);
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}
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static void server_handle_present_surface(struct wl_listener *listener,
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void *data) {
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struct fullscreen_server *server =
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wl_container_of(listener, server, present_surface);
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struct wlr_fullscreen_shell_v1_present_surface_event *event = data;
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struct fullscreen_output *output;
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wl_list_for_each(output, &server->outputs, link) {
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if (event->output == NULL || event->output == output->wlr_output) {
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output_set_surface(output, event->surface);
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}
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}
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}
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int main(int argc, char *argv[]) {
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wlr_log_init(WLR_DEBUG, NULL);
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char *startup_cmd = NULL;
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int c;
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while ((c = getopt(argc, argv, "s:")) != -1) {
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switch (c) {
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case 's':
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startup_cmd = optarg;
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break;
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default:
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printf("usage: %s [-s startup-command]\n", argv[0]);
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return EXIT_FAILURE;
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}
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}
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if (optind < argc) {
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printf("usage: %s [-s startup-command]\n", argv[0]);
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return EXIT_FAILURE;
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}
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struct fullscreen_server server = {0};
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server.wl_display = wl_display_create();
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server.backend = wlr_backend_autocreate(server.wl_display, NULL);
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server.renderer = wlr_backend_get_renderer(server.backend);
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wlr_renderer_init_wl_display(server.renderer, server.wl_display);
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wlr_compositor_create(server.wl_display, server.renderer);
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wlr_linux_dmabuf_v1_create(server.wl_display, server.renderer);
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server.output_layout = wlr_output_layout_create();
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wl_list_init(&server.outputs);
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server.new_output.notify = server_handle_new_output;
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wl_signal_add(&server.backend->events.new_output, &server.new_output);
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server.fullscreen_shell = wlr_fullscreen_shell_v1_create(server.wl_display);
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server.present_surface.notify = server_handle_present_surface;
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wl_signal_add(&server.fullscreen_shell->events.present_surface,
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&server.present_surface);
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const char *socket = wl_display_add_socket_auto(server.wl_display);
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if (!socket) {
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wl_display_destroy(server.wl_display);
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return EXIT_FAILURE;
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}
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if (!wlr_backend_start(server.backend)) {
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wl_display_destroy(server.wl_display);
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return EXIT_FAILURE;
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}
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setenv("WAYLAND_DISPLAY", socket, true);
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if (startup_cmd != NULL) {
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if (fork() == 0) {
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execl("/bin/sh", "/bin/sh", "-c", startup_cmd, (void *)NULL);
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}
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}
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wlr_log(WLR_INFO, "Running Wayland compositor on WAYLAND_DISPLAY=%s",
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socket);
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wl_display_run(server.wl_display);
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wl_display_destroy_clients(server.wl_display);
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wl_display_destroy(server.wl_display);
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return 0;
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}
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@ -0,0 +1,41 @@
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/*
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* This an unstable interface of wlroots. No guarantees are made regarding the
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* future consistency of this API.
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*/
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#ifndef WLR_USE_UNSTABLE
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#error "Add -DWLR_USE_UNSTABLE to enable unstable wlroots features"
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#endif
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#ifndef WLR_TYPES_WLR_FULLSCREEN_SHELL_V1_H
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#define WLR_TYPES_WLR_FULLSCREEN_SHELL_V1_H
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#include <wayland-server.h>
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#include "fullscreen-shell-unstable-v1-protocol.h"
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struct wlr_fullscreen_shell_v1 {
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struct wl_global *global;
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struct wl_list resources;
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struct {
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struct wl_signal destroy;
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// wlr_fullscreen_shell_v1_present_surface_event
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struct wl_signal present_surface;
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} events;
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struct wl_listener display_destroy;
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void *data;
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};
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struct wlr_fullscreen_shell_v1_present_surface_event {
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struct wl_client *client;
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struct wlr_surface *surface; // can be NULL
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enum zwp_fullscreen_shell_v1_present_method method;
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struct wlr_output *output; // can be NULL
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};
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struct wlr_fullscreen_shell_v1 *wlr_fullscreen_shell_v1_create(
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struct wl_display *display);
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void wlr_fullscreen_shell_v1_destroy(struct wlr_fullscreen_shell_v1 *shell);
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#endif
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@ -0,0 +1,129 @@
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#include <assert.h>
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#include <stdlib.h>
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#include <wlr/types/wlr_fullscreen_shell_v1.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/log.h>
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#include "util/signal.h"
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#define FULLSCREEN_SHELL_VERSION 1
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static const struct zwp_fullscreen_shell_v1_interface shell_impl;
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static struct wlr_fullscreen_shell_v1 *shell_from_resource(
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struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource,
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&zwp_fullscreen_shell_v1_interface, &shell_impl));
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return wl_resource_get_user_data(resource);
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}
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static void shell_handle_present_surface(struct wl_client *client,
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struct wl_resource *shell_resource,
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struct wl_resource *surface_resource, uint32_t method,
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struct wl_resource *output_resource) {
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struct wlr_fullscreen_shell_v1 *shell = shell_from_resource(shell_resource);
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struct wlr_surface *surface = NULL;
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if (surface_resource != NULL) {
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surface = wlr_surface_from_resource(surface_resource);
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}
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struct wlr_output *output = NULL;
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if (output_resource != NULL) {
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output = wlr_output_from_resource(output_resource);
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}
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struct wlr_fullscreen_shell_v1_present_surface_event event = {
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.client = client,
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.surface = surface,
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.method = method,
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.output = output,
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};
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wlr_signal_emit_safe(&shell->events.present_surface, &event);
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}
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static void shell_handle_present_surface_for_mode(struct wl_client *client,
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struct wl_resource *shell_resource,
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struct wl_resource *surface_resource,
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struct wl_resource *output_resource, int32_t framerate,
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uint32_t feedback_id) {
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uint32_t version = wl_resource_get_version(shell_resource);
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struct wl_resource *feedback_resource =
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wl_resource_create(client, NULL, version, feedback_id);
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if (feedback_resource == NULL) {
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wl_resource_post_no_memory(shell_resource);
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return;
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}
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// TODO: add support for mode switch
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zwp_fullscreen_shell_mode_feedback_v1_send_mode_failed(feedback_resource);
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wl_resource_destroy(feedback_resource);
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}
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static const struct zwp_fullscreen_shell_v1_interface shell_impl = {
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.present_surface = shell_handle_present_surface,
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.present_surface_for_mode = shell_handle_present_surface_for_mode,
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};
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static void shell_handle_resource_destroy(struct wl_resource *resource) {
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wl_list_remove(wl_resource_get_link(resource));
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}
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static void shell_bind(struct wl_client *client, void *data, uint32_t version,
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uint32_t id) {
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struct wlr_fullscreen_shell_v1 *shell = data;
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struct wl_resource *resource = wl_resource_create(client,
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&zwp_fullscreen_shell_v1_interface, version, id);
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if (resource == NULL) {
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wl_client_post_no_memory(client);
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return;
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}
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wl_resource_set_implementation(resource, &shell_impl, shell,
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shell_handle_resource_destroy);
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wl_list_insert(&shell->resources, wl_resource_get_link(resource));
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}
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static void handle_display_destroy(struct wl_listener *listener, void *data) {
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struct wlr_fullscreen_shell_v1 *shell =
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wl_container_of(listener, shell, display_destroy);
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wlr_fullscreen_shell_v1_destroy(shell);
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}
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struct wlr_fullscreen_shell_v1 *wlr_fullscreen_shell_v1_create(
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struct wl_display *display) {
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struct wlr_fullscreen_shell_v1 *shell =
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calloc(1, sizeof(struct wlr_fullscreen_shell_v1));
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if (shell == NULL) {
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return NULL;
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}
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wl_list_init(&shell->resources);
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wl_signal_init(&shell->events.destroy);
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wl_signal_init(&shell->events.present_surface);
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shell->global = wl_global_create(display,
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&zwp_fullscreen_shell_v1_interface, FULLSCREEN_SHELL_VERSION,
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shell, shell_bind);
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if (shell->global == NULL) {
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free(shell);
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return NULL;
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}
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shell->display_destroy.notify = handle_display_destroy;
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wl_display_add_destroy_listener(display, &shell->display_destroy);
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return shell;
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}
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void wlr_fullscreen_shell_v1_destroy(struct wlr_fullscreen_shell_v1 *shell) {
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if (shell == NULL) {
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return;
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}
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wlr_signal_emit_safe(&shell->events.destroy, shell);
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wl_list_remove(&shell->display_destroy.link);
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wl_global_destroy(shell->global);
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struct wl_resource *resource, *resource_tmp;
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wl_resource_for_each_safe(resource, resource_tmp, &shell->resources) {
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wl_resource_destroy(resource);
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}
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free(shell);
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}
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