Add screenshooter skeleton
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emersion
parent
321c26c2a3
commit
1c8b72e0cd
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#define _POSIX_C_SOURCE 199309L
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#include <string.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 <inttypes.h>
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#include <unistd.h>
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#include <sys/mman.h>
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#include <wayland-server.h>
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#include <wlr/backend.h>
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#include <wlr/backend/session.h>
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#include <wlr/render.h>
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#include <wlr/render/matrix.h>
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#include <wlr/render/gles2.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/types/wlr_wl_shell.h>
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#include <wlr/types/wlr_xdg_shell_v6.h>
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#include <wlr/types/wlr_seat.h>
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#include <wlr/types/wlr_data_device_manager.h>
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#include <wlr/types/wlr_gamma_control.h>
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#include <wlr/types/wlr_screenshooter.h>
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#include "wlr/types/wlr_compositor.h"
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#include <wlr/xwayland.h>
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#include <xkbcommon/xkbcommon.h>
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#include <wlr/util/log.h>
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#include "shared.h"
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// TODO: move to common header?
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int os_create_anonymous_file(off_t size);
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struct sample_state {
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struct wlr_renderer *renderer;
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struct wlr_compositor *wlr_compositor;
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struct wlr_wl_shell *wl_shell;
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struct wlr_seat *wl_seat;
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struct wlr_xdg_shell_v6 *xdg_shell;
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struct wlr_data_device_manager *data_device_manager;
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struct wl_resource *focus;
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struct wl_listener keyboard_bound;
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struct wlr_xwayland *xwayland;
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struct wlr_gamma_control_manager *gamma_control_manager;
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struct wlr_screenshooter *screenshooter;
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int keymap_fd;
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size_t keymap_size;
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uint32_t serial;
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};
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/*
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* Convert timespec to milliseconds
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*/
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static inline int64_t timespec_to_msec(const struct timespec *a) {
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return (int64_t)a->tv_sec * 1000 + a->tv_nsec / 1000000;
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}
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static void output_frame_handle_surface(struct sample_state *sample,
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struct wlr_output *wlr_output, struct timespec *ts,
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struct wl_resource *_res) {
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struct wlr_surface *surface = wl_resource_get_user_data(_res);
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float matrix[16];
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float transform[16];
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wlr_surface_flush_damage(surface);
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if (surface->texture->valid) {
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wlr_matrix_translate(&transform, 200, 200, 0);
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wlr_surface_get_matrix(surface, &matrix,
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&wlr_output->transform_matrix, &transform);
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wlr_render_with_matrix(sample->renderer, surface->texture, &matrix);
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struct wlr_frame_callback *cb, *cnext;
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wl_list_for_each_safe(cb, cnext, &surface->frame_callback_list, link) {
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wl_callback_send_done(cb->resource, timespec_to_msec(ts));
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wl_resource_destroy(cb->resource);
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}
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}
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}
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static void handle_output_frame(struct output_state *output, struct timespec *ts) {
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struct compositor_state *state = output->compositor;
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struct sample_state *sample = state->data;
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struct wlr_output *wlr_output = output->output;
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wlr_output_make_current(wlr_output);
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wlr_renderer_begin(sample->renderer, wlr_output);
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struct wlr_wl_shell_surface *wl_shell_surface;
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wl_list_for_each(wl_shell_surface, &sample->wl_shell->surfaces, link) {
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output_frame_handle_surface(sample, wlr_output, ts, wl_shell_surface->surface);
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}
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struct wlr_xdg_surface_v6 *xdg_surface;
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wl_list_for_each(xdg_surface, &sample->xdg_shell->surfaces, link) {
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output_frame_handle_surface(sample, wlr_output, ts, xdg_surface->surface);
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}
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struct wlr_x11_window *x11_window;
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wl_list_for_each(x11_window, &sample->xwayland->displayable_windows, link) {
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output_frame_handle_surface(sample, wlr_output, ts, x11_window->surface);
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}
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wlr_renderer_end(sample->renderer);
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wlr_output_swap_buffers(wlr_output);
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}
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static void handle_keyboard_key(struct keyboard_state *keyboard, uint32_t keycode,
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xkb_keysym_t sym, enum wlr_key_state key_state) {
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struct compositor_state *state = keyboard->compositor;
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struct sample_state *sample = state->data;
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struct wl_resource *res = NULL;
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struct wlr_seat_handle *seat_handle = NULL;
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wl_list_for_each(res, &sample->wlr_compositor->surfaces, link) {
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break;
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}
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if (res) {
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seat_handle = wlr_seat_handle_for_client(sample->wl_seat,
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wl_resource_get_client(res));
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}
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if (res != sample->focus && seat_handle && seat_handle->keyboard) {
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struct wl_array keys;
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wl_array_init(&keys);
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wl_keyboard_send_enter(seat_handle->keyboard, ++sample->serial, res, &keys);
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sample->focus = res;
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}
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if (seat_handle && seat_handle->keyboard) {
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uint32_t depressed = xkb_state_serialize_mods(keyboard->xkb_state,
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XKB_STATE_MODS_DEPRESSED);
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uint32_t latched = xkb_state_serialize_mods(keyboard->xkb_state,
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XKB_STATE_MODS_LATCHED);
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uint32_t locked = xkb_state_serialize_mods(keyboard->xkb_state,
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XKB_STATE_MODS_LOCKED);
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uint32_t group = xkb_state_serialize_layout(keyboard->xkb_state,
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XKB_STATE_LAYOUT_EFFECTIVE);
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wl_keyboard_send_modifiers(seat_handle->keyboard, ++sample->serial, depressed,
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latched, locked, group);
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wl_keyboard_send_key(seat_handle->keyboard, ++sample->serial, 0, keycode, key_state);
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}
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}
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static void handle_keyboard_bound(struct wl_listener *listener, void *data) {
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struct wlr_seat_handle *handle = data;
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struct sample_state *state = wl_container_of(listener, state, keyboard_bound);
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wl_keyboard_send_keymap(handle->keyboard, WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1,
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state->keymap_fd, state->keymap_size);
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if (wl_resource_get_version(handle->keyboard) >= 2) {
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wl_keyboard_send_repeat_info(handle->keyboard, 25, 600);
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}
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}
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int main() {
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struct sample_state state = { 0 };
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struct compositor_state compositor = { 0,
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.data = &state,
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.output_frame_cb = handle_output_frame,
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};
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compositor_init(&compositor);
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state.renderer = wlr_gles2_renderer_create(compositor.backend);
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if (!state.renderer) {
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wlr_log(L_ERROR, "Could not start compositor, OOM");
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exit(EXIT_FAILURE);
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}
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wl_display_init_shm(compositor.display);
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state.wlr_compositor = wlr_compositor_create(compositor.display, state.renderer);
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state.wl_shell = wlr_wl_shell_create(compositor.display);
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state.xdg_shell = wlr_xdg_shell_v6_create(compositor.display);
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state.data_device_manager = wlr_data_device_manager_create(compositor.display);
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state.gamma_control_manager = wlr_gamma_control_manager_create(compositor.display);
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state.screenshooter = wlr_screenshooter_create(compositor.display);
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state.wl_seat = wlr_seat_create(compositor.display, "seat0");
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state.keyboard_bound.notify = handle_keyboard_bound;
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wl_signal_add(&state.wl_seat->events.keyboard_bound, &state.keyboard_bound);
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wlr_seat_set_capabilities(state.wl_seat, WL_SEAT_CAPABILITY_KEYBOARD
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| WL_SEAT_CAPABILITY_POINTER | WL_SEAT_CAPABILITY_TOUCH);
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struct keyboard_state *kbstate;
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wl_list_for_each(kbstate, &compositor.keyboards, link) {
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char *keymap = xkb_keymap_get_as_string(kbstate->keymap,
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XKB_KEYMAP_FORMAT_TEXT_V1);
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state.keymap_size = strlen(keymap);
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state.keymap_fd = os_create_anonymous_file(state.keymap_size);
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void *ptr = mmap(NULL, state.keymap_size,
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PROT_READ | PROT_WRITE,
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MAP_SHARED, state.keymap_fd, 0);
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strcpy(ptr, keymap);
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free(keymap);
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break;
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}
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state.xwayland = wlr_xwayland_create(compositor.display, state.wlr_compositor);
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compositor.keyboard_key_cb = handle_keyboard_key;
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wl_display_run(compositor.display);
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wlr_xwayland_destroy(state.xwayland);
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close(state.keymap_fd);
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wlr_seat_destroy(state.wl_seat);
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wlr_screenshooter_destroy(state.screenshooter);
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wlr_gamma_control_manager_destroy(state.gamma_control_manager);
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wlr_data_device_manager_destroy(state.data_device_manager);
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wlr_xdg_shell_v6_destroy(state.xdg_shell);
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wlr_wl_shell_destroy(state.wl_shell);
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wlr_compositor_destroy(state.wlr_compositor);
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wlr_renderer_destroy(state.renderer);
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compositor_fini(&compositor);
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}
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@ -0,0 +1,21 @@
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#ifndef _WLR_SCREENSHOOTER_H
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#define _WLR_SCREENSHOOTER_H
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#include <wayland-server.h>
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struct wlr_screenshooter {
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struct wl_global *wl_global;
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void *data;
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};
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struct wlr_screenshot {
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struct wl_resource *resource;
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struct wl_resource *output;
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void* data;
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};
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struct wlr_screenshooter *wlr_screenshooter_create(struct wl_display *display);
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void wlr_screenshooter_destroy(struct wlr_screenshooter *screenshooter);
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#endif
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@ -22,11 +22,12 @@ wayland_scanner_client = generator(
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protocols = [
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[wl_protocol_dir, 'unstable/xdg-shell/xdg-shell-unstable-v6.xml'],
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'gamma-control.xml'
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'gamma-control.xml',
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'screenshooter.xml',
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]
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client_protocols = [
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[wl_protocol_dir, 'unstable/xdg-shell/xdg-shell-unstable-v6.xml']
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[wl_protocol_dir, 'unstable/xdg-shell/xdg-shell-unstable-v6.xml'],
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]
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wl_protos_src = []
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<protocol name="orbital_screenshooter">
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<interface name="orbital_screenshooter" version="1">
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<request name="shoot">
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<arg name="id" type="new_id" interface="orbital_screenshot"/>
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<arg name="output" type="object" interface="wl_output"/>
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<arg name="buffer" type="object" interface="wl_buffer"/>
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</request>
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</interface>
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<interface name="orbital_screenshot" version="1">
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<event name="done">
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</event>
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</interface>
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</protocol>
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@ -20,6 +20,7 @@ lib_wlr_types = static_library(
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'wlr_compositor.c',
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'wlr_box.c',
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'wlr_gamma_control.c',
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'wlr_screenshooter.c',
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),
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include_directories: wlr_inc,
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dependencies: [wayland_server, pixman, wlr_protos],
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@ -0,0 +1,66 @@
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#include <assert.h>
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#include <stdlib.h>
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#include <wayland-server.h>
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#include <wlr/types/wlr_screenshooter.h>
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#include <wlr/types/wlr_output.h>
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#include <wlr/util/log.h>
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#include "screenshooter-protocol.h"
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static void screenshooter_shoot(struct wl_client *client,
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struct wl_resource *_screenshooter, uint32_t id,
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struct wl_resource *_output, struct wl_resource *_buffer) {
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struct wlr_screenshot *screenshot;
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if (!(screenshot = calloc(1, sizeof(struct wlr_screenshot)))) {
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return;
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}
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screenshot->output = _output;
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screenshot->resource = wl_resource_create(client,
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&orbital_screenshot_interface, wl_resource_get_version(_screenshooter), id);
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wlr_log(L_DEBUG, "new screenshot %p (res %p)", screenshot, screenshot->resource);
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wl_resource_set_implementation(screenshot->resource, NULL, screenshot, NULL);
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// TODO: orbital_screenshot_send_done(screenshot->resource);
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}
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static struct orbital_screenshooter_interface screenshooter_impl = {
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.shoot = screenshooter_shoot,
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};
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static void screenshooter_bind(struct wl_client *wl_client,
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void *_screenshooter, uint32_t version, uint32_t id) {
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struct wlr_screenshooter *screenshooter = _screenshooter;
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assert(wl_client && screenshooter);
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if (version > 1) {
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wlr_log(L_ERROR, "Client requested unsupported screenshooter version, disconnecting");
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wl_client_destroy(wl_client);
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return;
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}
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struct wl_resource *wl_resource = wl_resource_create(wl_client,
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&orbital_screenshooter_interface, version, id);
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wl_resource_set_implementation(wl_resource, &screenshooter_impl,
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screenshooter, NULL);
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}
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struct wlr_screenshooter *wlr_screenshooter_create(struct wl_display *display) {
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struct wlr_screenshooter *screenshooter =
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calloc(1, sizeof(struct wlr_screenshooter));
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if (!screenshooter) {
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return NULL;
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}
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struct wl_global *wl_global = wl_global_create(display,
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&orbital_screenshooter_interface, 1, screenshooter, screenshooter_bind);
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if (!wl_global) {
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free(screenshooter);
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return NULL;
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}
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screenshooter->wl_global = wl_global;
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return screenshooter;
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}
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void wlr_screenshooter_destroy(struct wlr_screenshooter *screenshooter) {
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if (!screenshooter) {
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return;
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}
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// TODO: this segfault (wl_display->registry_resource_list is not init)
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// wl_global_destroy(screenshooter->wl_global);
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free(screenshooter);
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}
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