diff options
Diffstat (limited to 'examples/fullscreen-shell.c')
| -rw-r--r-- | examples/fullscreen-shell.c | 248 |
1 files changed, 248 insertions, 0 deletions
diff --git a/examples/fullscreen-shell.c b/examples/fullscreen-shell.c new file mode 100644 index 00000000..7f2c9c2b --- /dev/null +++ b/examples/fullscreen-shell.c @@ -0,0 +1,248 @@ +#define _POSIX_C_SOURCE 200112L +#include <getopt.h> +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include <time.h> +#include <unistd.h> +#include <wayland-server.h> +#include <wlr/backend.h> +#include <wlr/render/wlr_renderer.h> +#include <wlr/types/wlr_compositor.h> +#include <wlr/types/wlr_fullscreen_shell_v1.h> +#include <wlr/types/wlr_linux_dmabuf_v1.h> +#include <wlr/types/wlr_matrix.h> +#include <wlr/types/wlr_output_layout.h> +#include <wlr/types/wlr_output.h> +#include <wlr/types/wlr_surface.h> +#include <wlr/util/log.h> + +/** + * A minimal fullscreen-shell server. It only supports rendering. + */ + +struct fullscreen_server { + struct wl_display *wl_display; + struct wlr_backend *backend; + struct wlr_renderer *renderer; + + struct wlr_fullscreen_shell_v1 *fullscreen_shell; + struct wl_listener present_surface; + + struct wlr_output_layout *output_layout; + struct wl_list outputs; + struct wl_listener new_output; +}; + +struct fullscreen_output { + struct wl_list link; + struct fullscreen_server *server; + struct wlr_output *wlr_output; + struct wlr_surface *surface; + struct wl_listener surface_destroy; + + struct wl_listener frame; +}; + +struct render_data { + struct wlr_output *output; + struct wlr_renderer *renderer; + struct tinywl_view *view; + struct timespec *when; +}; + +static void render_surface(struct wlr_surface *surface, + int sx, int sy, void *data) { + struct render_data *rdata = data; + struct wlr_output *output = rdata->output; + + struct wlr_texture *texture = wlr_surface_get_texture(surface); + if (texture == NULL) { + return; + } + + struct wlr_box box = { + .x = sx * output->scale, + .y = sy * output->scale, + .width = surface->current.width * output->scale, + .height = surface->current.height * output->scale, + }; + + float matrix[9]; + enum wl_output_transform transform = + wlr_output_transform_invert(surface->current.transform); + wlr_matrix_project_box(matrix, &box, transform, 0, + output->transform_matrix); + + wlr_render_texture_with_matrix(rdata->renderer, texture, matrix, 1); + + wlr_surface_send_frame_done(surface, rdata->when); +} + +static void output_handle_frame(struct wl_listener *listener, void *data) { + struct fullscreen_output *output = + wl_container_of(listener, output, frame); + struct wlr_renderer *renderer = output->server->renderer; + + struct timespec now; + clock_gettime(CLOCK_MONOTONIC, &now); + int width, height; + wlr_output_effective_resolution(output->wlr_output, &width, &height); + + if (!wlr_output_make_current(output->wlr_output, NULL)) { + return; + } + + wlr_renderer_begin(renderer, width, height); + + float color[4] = {0.3, 0.3, 0.3, 1.0}; + wlr_renderer_clear(renderer, color); + + if (output->surface != NULL) { + struct render_data rdata = { + .output = output->wlr_output, + .renderer = renderer, + .when = &now, + }; + wlr_surface_for_each_surface(output->surface, render_surface, &rdata); + } + + wlr_renderer_end(renderer); + wlr_output_swap_buffers(output->wlr_output, NULL, NULL); +} + +static void output_set_surface(struct fullscreen_output *output, + struct wlr_surface *surface); + +static void output_handle_surface_destroy(struct wl_listener *listener, + void *data) { + struct fullscreen_output *output = + wl_container_of(listener, output, surface_destroy); + output_set_surface(output, NULL); +} + +static void output_set_surface(struct fullscreen_output *output, + struct wlr_surface *surface) { + if (output->surface == surface) { + return; + } + + if (output->surface != NULL) { + wl_list_remove(&output->surface_destroy.link); + output->surface = NULL; + } + + if (surface != NULL) { + output->surface_destroy.notify = output_handle_surface_destroy; + wl_signal_add(&surface->events.destroy, &output->surface_destroy); + output->surface = surface; + } + + wlr_log(WLR_DEBUG, "Presenting surface %p on output %s", + surface, output->wlr_output->name); +} + +static void server_handle_new_output(struct wl_listener *listener, void *data) { + struct fullscreen_server *server = + wl_container_of(listener, server, new_output); + struct wlr_output *wlr_output = data; + + 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); + } + + struct fullscreen_output *output = + calloc(1, sizeof(struct fullscreen_output)); + output->wlr_output = wlr_output; + output->server = server; + output->frame.notify = output_handle_frame; + wl_signal_add(&wlr_output->events.frame, &output->frame); + wl_list_insert(&server->outputs, &output->link); + + wlr_output_layout_add_auto(server->output_layout, wlr_output); + wlr_output_create_global(wlr_output); +} + +static void server_handle_present_surface(struct wl_listener *listener, + void *data) { + struct fullscreen_server *server = + wl_container_of(listener, server, present_surface); + struct wlr_fullscreen_shell_v1_present_surface_event *event = data; + + struct fullscreen_output *output; + wl_list_for_each(output, &server->outputs, link) { + if (event->output == NULL || event->output == output->wlr_output) { + output_set_surface(output, event->surface); + } + } +} + +int main(int argc, char *argv[]) { + wlr_log_init(WLR_DEBUG, NULL); + + char *startup_cmd = NULL; + + int c; + while ((c = getopt(argc, argv, "s:")) != -1) { + switch (c) { + case 's': + startup_cmd = optarg; + break; + default: + printf("usage: %s [-s startup-command]\n", argv[0]); + return EXIT_FAILURE; + } + } + if (optind < argc) { + printf("usage: %s [-s startup-command]\n", argv[0]); + return EXIT_FAILURE; + } + + struct fullscreen_server server = {0}; + server.wl_display = wl_display_create(); + server.backend = wlr_backend_autocreate(server.wl_display, NULL); + server.renderer = wlr_backend_get_renderer(server.backend); + wlr_renderer_init_wl_display(server.renderer, server.wl_display); + + wlr_compositor_create(server.wl_display, server.renderer); + wlr_linux_dmabuf_v1_create(server.wl_display, server.renderer); + + server.output_layout = wlr_output_layout_create(); + + wl_list_init(&server.outputs); + server.new_output.notify = server_handle_new_output; + wl_signal_add(&server.backend->events.new_output, &server.new_output); + + server.fullscreen_shell = wlr_fullscreen_shell_v1_create(server.wl_display); + server.present_surface.notify = server_handle_present_surface; + wl_signal_add(&server.fullscreen_shell->events.present_surface, + &server.present_surface); + + const char *socket = wl_display_add_socket_auto(server.wl_display); + if (!socket) { + wl_display_destroy(server.wl_display); + return EXIT_FAILURE; + } + + if (!wlr_backend_start(server.backend)) { + wl_display_destroy(server.wl_display); + return EXIT_FAILURE; + } + + setenv("WAYLAND_DISPLAY", socket, true); + if (startup_cmd != NULL) { + if (fork() == 0) { + execl("/bin/sh", "/bin/sh", "-c", startup_cmd, (void *)NULL); + } + } + + wlr_log(WLR_INFO, "Running Wayland compositor on WAYLAND_DISPLAY=%s", + socket); + wl_display_run(server.wl_display); + + wl_display_destroy_clients(server.wl_display); + wl_display_destroy(server.wl_display); + return 0; +} |