sway/wayland/client.c

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5.2 KiB
C
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#include <wayland-client.h>
#include <cairo/cairo.h>
#include <pango/pangocairo.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <errno.h>
#include <sys/mman.h>
#include "client/client.h"
#include "client/buffer.h"
#include "list.h"
#include "log.h"
static void display_handle_mode(void *data, struct wl_output *wl_output,
uint32_t flags, int32_t width, int32_t height, int32_t refresh) {
struct output_state *state = data;
if (flags & WL_OUTPUT_MODE_CURRENT) {
state->flags = flags;
state->width = width;
state->height = height;
}
}
static void display_handle_geometry(void *data, struct wl_output *wl_output,
int32_t x, int32_t y, int32_t physical_width, int32_t physical_height,
int32_t subpixel, const char *make, const char *model, int32_t transform) {
// this space intentionally left blank
}
static void display_handle_done(void *data, struct wl_output *wl_output) {
// this space intentionally left blank
}
static void display_handle_scale(void *data, struct wl_output *wl_output, int32_t factor) {
// this space intentionally left blank
}
static const struct wl_output_listener output_listener = {
.mode = display_handle_mode,
.geometry = display_handle_geometry,
.done = display_handle_done,
.scale = display_handle_scale
};
static void registry_global(void *data, struct wl_registry *registry,
uint32_t name, const char *interface, uint32_t version) {
struct client_state *state = data;
if (strcmp(interface, wl_compositor_interface.name) == 0) {
state->compositor = wl_registry_bind(registry, name, &wl_compositor_interface, version);
} else if (strcmp(interface, wl_shm_interface.name) == 0) {
state->shm = wl_registry_bind(registry, name, &wl_shm_interface, version);
} else if (strcmp(interface, wl_shell_interface.name) == 0) {
state->shell = wl_registry_bind(registry, name, &wl_shell_interface, version);
} else if (strcmp(interface, wl_seat_interface.name) == 0) {
state->seat = wl_registry_bind(registry, name, &wl_seat_interface, version);
state->pointer = wl_seat_get_pointer(state->seat);
} else if (strcmp(interface, wl_output_interface.name) == 0) {
struct wl_output *output = wl_registry_bind(registry, name, &wl_output_interface, version);
struct output_state *ostate = malloc(sizeof(struct output_state));
ostate->output = output;
wl_output_add_listener(output, &output_listener, ostate);
list_add(state->outputs, ostate);
}
}
static void registry_global_remove(void *data, struct wl_registry *registry, uint32_t name) {
// this space intentionally left blank
}
static const struct wl_registry_listener registry_listener = {
.global = registry_global,
.global_remove = registry_global_remove
};
void shell_surface_configure(void *data, struct wl_shell_surface *wl_shell_surface,
uint32_t edges, int32_t width, int32_t height) {
struct client_state *state = data;
state->width = width;
state->height = height;
}
static const struct wl_shell_surface_listener surface_listener = {
.configure = shell_surface_configure
};
struct client_state *client_setup(uint32_t width, uint32_t height) {
struct client_state *state = malloc(sizeof(struct client_state));
memset(state, 0, sizeof(struct client_state));
state->outputs = create_list();
state->width = width;
state->height = height;
state->display = wl_display_connect(NULL);
if (!state->display) {
sway_log(L_ERROR, "Error opening display");
client_teardown(state);
return NULL;
}
struct wl_registry *registry = wl_display_get_registry(state->display);
wl_registry_add_listener(registry, &registry_listener, state);
wl_display_dispatch(state->display);
wl_display_roundtrip(state->display);
wl_registry_destroy(registry);
state->surface = wl_compositor_create_surface(state->compositor);
state->shell_surface = wl_shell_get_shell_surface(state->shell, state->surface);
wl_shell_surface_add_listener(state->shell_surface, &surface_listener, state);
wl_shell_surface_set_toplevel(state->shell_surface);
return state;
}
static void frame_callback(void *data, struct wl_callback *callback, uint32_t time) {
struct client_state *state = data;
wl_callback_destroy(callback);
state->frame_cb = NULL;
}
static const struct wl_callback_listener listener = {
frame_callback
};
int client_prerender(struct client_state *state) {
if (state->frame_cb) {
return 0;
}
get_next_buffer(state);
return 1;
}
int client_render(struct client_state *state) {
state->frame_cb = wl_surface_frame(state->surface);
wl_callback_add_listener(state->frame_cb, &listener, state);
wl_surface_damage(state->surface, 0, 0, state->buffer->width, state->buffer->height);
wl_surface_attach(state->surface, state->buffer->buffer, 0, 0);
wl_surface_commit(state->surface);
return 1;
}
void client_teardown(struct client_state *state) {
if (state->pointer) {
wl_pointer_destroy(state->pointer);
}
if (state->seat) {
wl_seat_destroy(state->seat);
}
if (state->shell) {
wl_shell_destroy(state->shell);
}
if (state->shm) {
wl_shm_destroy(state->shm);
}
if (state->compositor) {
wl_compositor_destroy(state->compositor);
}
if (state->display) {
wl_display_disconnect(state->display);
}
if (state->outputs) {
// TODO: Free the outputs themselves
list_free(state->outputs);
}
}