Drew DeVault
GitHub
commit
285a109d41
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@ -10,6 +10,7 @@
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#include <wlr/backend/drm.h>
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#include <wlr/backend/libinput.h>
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#include <wlr/backend/wayland.h>
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#include <wlr/backend/x11.h>
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#include <wlr/backend/multi.h>
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#include <wlr/util/log.h>
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@ -77,9 +78,9 @@ struct wlr_backend *wlr_backend_autocreate(struct wl_display *display) {
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}
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}
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if (getenv("DISPLAY")) {
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wlr_log(L_ERROR, "X11 backend is not implemented"); // TODO
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return NULL;
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const char *x11_display = getenv("DISPLAY");
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if (x11_display) {
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return wlr_x11_backend_create(display, x11_display);
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}
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// Attempt DRM+libinput
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@ -182,7 +182,8 @@ bool wlr_drm_renderer_init(struct wlr_drm_renderer *renderer, int fd) {
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return false;
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}
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if (!wlr_egl_init(&renderer->egl, EGL_PLATFORM_GBM_MESA, renderer->gbm)) {
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if (!wlr_egl_init(&renderer->egl, EGL_PLATFORM_GBM_MESA,
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GBM_FORMAT_ARGB8888, renderer->gbm)) {
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gbm_device_destroy(renderer->gbm);
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return false;
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}
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@ -22,6 +22,7 @@ backend_files = files(
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'wayland/registry.c',
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'wayland/wl_seat.c',
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'wayland/os-compatibility.c',
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'x11/backend.c',
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)
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if systemd.found()
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@ -42,6 +42,7 @@ static bool wlr_wl_backend_start(struct wlr_backend *_backend) {
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}
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backend->started = true;
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for (size_t i = 0; i < backend->requested_outputs; ++i) {
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wlr_wl_output_create(&backend->backend);
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}
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@ -145,7 +146,7 @@ struct wlr_backend *wlr_wl_backend_create(struct wl_display *display) {
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return false;
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}
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wlr_egl_init(&backend->egl, EGL_PLATFORM_WAYLAND_EXT, backend->remote_display);
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wlr_egl_init(&backend->egl, EGL_PLATFORM_WAYLAND_EXT, WL_SHM_FORMAT_ARGB8888, backend->remote_display);
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wlr_egl_bind_display(&backend->egl, backend->local_display);
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return &backend->backend;
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@ -0,0 +1,336 @@
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#define _POSIX_C_SOURCE 199309L
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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 <EGL/egl.h>
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#include <wayland-server.h>
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#include <xcb/xcb.h>
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#include <xcb/glx.h>
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#include <X11/Xlib-xcb.h>
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#include <linux/input-event-codes.h>
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#include <wlr/backend/interface.h>
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#include <wlr/backend/x11.h>
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#include <wlr/egl.h>
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#include <wlr/interfaces/wlr_output.h>
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#include <wlr/interfaces/wlr_input_device.h>
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#include <wlr/interfaces/wlr_keyboard.h>
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#include <wlr/interfaces/wlr_pointer.h>
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#include <wlr/util/log.h>
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#include "backend/x11.h"
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static struct wlr_backend_impl backend_impl;
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static struct wlr_output_impl output_impl;
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static uint32_t xcb_button_to_wl(uint32_t button) {
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switch (button) {
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case XCB_BUTTON_INDEX_1: return BTN_LEFT;
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case XCB_BUTTON_INDEX_2: return BTN_MIDDLE;
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case XCB_BUTTON_INDEX_3: return BTN_RIGHT;
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// XXX: I'm not sure the scroll-wheel direction is right
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case XCB_BUTTON_INDEX_4: return BTN_GEAR_UP;
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case XCB_BUTTON_INDEX_5: return BTN_GEAR_DOWN;
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default: return 0;
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}
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}
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static bool handle_x11_event(struct wlr_x11_backend *x11, xcb_generic_event_t *event) {
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struct wlr_x11_output *output = &x11->output;
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switch (event->response_type) {
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case XCB_EXPOSE: {
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wl_signal_emit(&output->wlr_output.events.frame, output);
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break;
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}
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case XCB_KEY_PRESS:
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case XCB_KEY_RELEASE: {
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xcb_key_press_event_t *ev = (xcb_key_press_event_t *)event;
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struct wlr_event_keyboard_key key = {
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.time_sec = ev->time / 1000,
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.time_usec = (ev->time % 1000) * 1000,
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.keycode = ev->detail - 8,
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.state = event->response_type == XCB_KEY_PRESS ?
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WLR_KEY_PRESSED : WLR_KEY_RELEASED,
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};
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wl_signal_emit(&x11->keyboard.events.key, &key);
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x11->time = ev->time;
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break;
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}
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case XCB_BUTTON_PRESS:
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case XCB_BUTTON_RELEASE: {
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xcb_button_press_event_t *ev = (xcb_button_press_event_t *)event;
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struct wlr_event_pointer_button button = {
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.device = &x11->pointer_dev,
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.time_sec = ev->time / 1000,
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.time_usec = (ev->time % 1000) * 1000,
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.button = xcb_button_to_wl(ev->detail),
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.state = event->response_type == XCB_BUTTON_PRESS ?
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WLR_BUTTON_PRESSED : WLR_BUTTON_RELEASED,
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};
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wl_signal_emit(&x11->pointer.events.button, &button);
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x11->time = ev->time;
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break;
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}
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case XCB_MOTION_NOTIFY: {
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xcb_motion_notify_event_t *ev = (xcb_motion_notify_event_t *)event;
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struct wlr_event_pointer_motion_absolute abs = {
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.device = &x11->pointer_dev,
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.time_sec = ev->time / 1000,
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.time_usec = (ev->time % 1000) * 1000,
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.x_mm = ev->event_x,
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.y_mm = ev->event_y,
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.width_mm = output->wlr_output.width,
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.height_mm = output->wlr_output.height,
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};
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wl_signal_emit(&x11->pointer.events.motion_absolute, &abs);
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x11->time = ev->time;
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break;
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}
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case XCB_CONFIGURE_NOTIFY: {
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xcb_configure_notify_event_t *ev = (xcb_configure_notify_event_t *)event;
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output->wlr_output.width = ev->width;
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output->wlr_output.height = ev->height;
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wlr_output_update_matrix(&output->wlr_output);
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wl_signal_emit(&output->wlr_output.events.resolution, output);
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// Move the pointer to its new location
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xcb_query_pointer_cookie_t cookie =
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xcb_query_pointer(x11->xcb_conn, output->win);
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xcb_query_pointer_reply_t *pointer =
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xcb_query_pointer_reply(x11->xcb_conn, cookie, NULL);
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if (!pointer) {
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break;
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}
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struct wlr_event_pointer_motion_absolute abs = {
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.device = &x11->pointer_dev,
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.time_sec = x11->time / 1000,
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.time_usec = (x11->time % 1000) * 1000,
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.x_mm = pointer->root_x,
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.y_mm = pointer->root_y,
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.width_mm = output->wlr_output.width,
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.height_mm = output->wlr_output.height,
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};
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wl_signal_emit(&x11->pointer.events.motion_absolute, &abs);
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break;
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}
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case XCB_GLX_DELETE_QUERIES_ARB: {
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wl_display_terminate(x11->wl_display);
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return true;
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break;
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}
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default:
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break;
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}
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return false;
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}
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static int x11_event(int fd, uint32_t mask, void *data) {
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struct wlr_x11_backend *x11 = data;
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xcb_generic_event_t *e;
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bool quit = false;
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while (!quit && (e = xcb_poll_for_event(x11->xcb_conn))) {
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quit = handle_x11_event(x11, e);
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free(e);
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}
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return 0;
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}
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static int signal_frame(void *data) {
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struct wlr_x11_backend *x11 = data;
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wl_signal_emit(&x11->output.wlr_output.events.frame, &x11->output);
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wl_event_source_timer_update(x11->frame_timer, 16);
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return 0;
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}
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static void init_atom(struct wlr_x11_backend *x11, struct wlr_x11_atom *atom,
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uint8_t only_if_exists, const char *name) {
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atom->cookie = xcb_intern_atom(x11->xcb_conn, only_if_exists, strlen(name), name);
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atom->reply = xcb_intern_atom_reply(x11->xcb_conn, atom->cookie, NULL);
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}
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struct wlr_backend *wlr_x11_backend_create(struct wl_display *display,
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const char *x11_display) {
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struct wlr_x11_backend *x11 = calloc(1, sizeof(*x11));
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if (!x11) {
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return NULL;
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}
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wlr_backend_init(&x11->backend, &backend_impl);
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x11->wl_display = display;
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x11->xlib_conn = XOpenDisplay(x11_display);
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if (!x11->xlib_conn) {
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wlr_log(L_ERROR, "Failed to open X connection");
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return NULL;
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}
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x11->xcb_conn = XGetXCBConnection(x11->xlib_conn);
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if (!x11->xcb_conn || xcb_connection_has_error(x11->xcb_conn)) {
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wlr_log(L_ERROR, "Failed to open xcb connection");
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goto error_x11;
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}
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XSetEventQueueOwner(x11->xlib_conn, XCBOwnsEventQueue);
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int fd = xcb_get_file_descriptor(x11->xcb_conn);
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struct wl_event_loop *ev = wl_display_get_event_loop(display);
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x11->event_source = wl_event_loop_add_fd(ev, fd, WL_EVENT_READABLE, x11_event, x11);
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if (!x11->event_source) {
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wlr_log(L_ERROR, "Could not create event source");
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goto error_x11;
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}
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x11->frame_timer = wl_event_loop_add_timer(ev, signal_frame, x11);
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x11->screen = xcb_setup_roots_iterator(xcb_get_setup(x11->xcb_conn)).data;
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if (!wlr_egl_init(&x11->egl, EGL_PLATFORM_X11_KHR,
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x11->screen->root_visual, x11->xlib_conn)) {
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goto error_event;
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}
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wlr_input_device_init(&x11->keyboard_dev, WLR_INPUT_DEVICE_KEYBOARD,
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NULL, "X11 keyboard", 0, 0);
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wlr_keyboard_init(&x11->keyboard, NULL);
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x11->keyboard_dev.keyboard = &x11->keyboard;
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wlr_input_device_init(&x11->pointer_dev, WLR_INPUT_DEVICE_POINTER,
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NULL, "X11 pointer", 0, 0);
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wlr_pointer_init(&x11->pointer, NULL);
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x11->pointer_dev.pointer = &x11->pointer;
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return &x11->backend;
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error_event:
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wl_event_source_remove(x11->event_source);
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error_x11:
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xcb_disconnect(x11->xcb_conn);
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XCloseDisplay(x11->xlib_conn);
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free(x11);
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return NULL;
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}
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static bool wlr_x11_backend_start(struct wlr_backend *backend) {
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struct wlr_x11_backend *x11 = (struct wlr_x11_backend *)backend;
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struct wlr_x11_output *output = &x11->output;
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uint32_t mask = XCB_CW_BACK_PIXEL | XCB_CW_EVENT_MASK;
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uint32_t values[2] = {
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x11->screen->white_pixel,
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XCB_EVENT_MASK_EXPOSURE |
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XCB_EVENT_MASK_KEY_PRESS | XCB_EVENT_MASK_KEY_RELEASE |
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XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE |
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XCB_EVENT_MASK_POINTER_MOTION |
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XCB_EVENT_MASK_STRUCTURE_NOTIFY
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};
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output->x11 = x11;
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wlr_output_init(&output->wlr_output, &output_impl);
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snprintf(output->wlr_output.name, sizeof(output->wlr_output.name), "X11-1");
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output->win = xcb_generate_id(x11->xcb_conn);
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xcb_create_window(x11->xcb_conn, XCB_COPY_FROM_PARENT, output->win, x11->screen->root,
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0, 0, 1024, 768, 1, XCB_WINDOW_CLASS_INPUT_OUTPUT,
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x11->screen->root_visual, mask, values);
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output->surf = wlr_egl_create_surface(&x11->egl, &output->win);
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if (!output->surf) {
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wlr_log(L_ERROR, "Failed to create EGL surface");
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return false;
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}
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init_atom(x11, &x11->atoms.wm_protocols, 1, "WM_PROTOCOLS");
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init_atom(x11, &x11->atoms.wm_delete_window, 0, "WM_DELETE_WINDOW");
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xcb_change_property(x11->xcb_conn, XCB_PROP_MODE_REPLACE, output->win,
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x11->atoms.wm_protocols.reply->atom, XCB_ATOM_ATOM, 32, 1,
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&x11->atoms.wm_delete_window.reply->atom);
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xcb_map_window(x11->xcb_conn, output->win);
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xcb_flush(x11->xcb_conn);
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wl_signal_emit(&x11->backend.events.output_add, output);
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wl_signal_emit(&x11->backend.events.input_add, &x11->keyboard_dev);
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wl_signal_emit(&x11->backend.events.input_add, &x11->pointer_dev);
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wl_event_source_timer_update(x11->frame_timer, 16);
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return true;
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}
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static void wlr_x11_backend_destroy(struct wlr_backend *backend) {
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if (!backend) {
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return;
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}
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struct wlr_x11_backend *x11 = (struct wlr_x11_backend *)backend;
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wl_event_source_remove(x11->frame_timer);
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wlr_egl_free(&x11->egl);
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xcb_disconnect(x11->xcb_conn);
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free(x11);
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}
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static struct wlr_egl *wlr_x11_backend_get_egl(struct wlr_backend *backend) {
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struct wlr_x11_backend *x11 = (struct wlr_x11_backend *)backend;
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return &x11->egl;
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}
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bool wlr_backend_is_x11(struct wlr_backend *backend) {
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return backend->impl == &backend_impl;
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}
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static struct wlr_backend_impl backend_impl = {
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.start = wlr_x11_backend_start,
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.destroy = wlr_x11_backend_destroy,
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.get_egl = wlr_x11_backend_get_egl,
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};
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static void output_transform(struct wlr_output *wlr_output, enum wl_output_transform transform) {
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struct wlr_x11_output *output = (struct wlr_x11_output *)wlr_output;
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output->wlr_output.transform = transform;
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}
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static void output_destroy(struct wlr_output *wlr_output) {
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struct wlr_x11_output *output = (struct wlr_x11_output *)wlr_output;
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struct wlr_x11_backend *x11 = output->x11;
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eglDestroySurface(x11->egl.display, output->surf);
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xcb_destroy_window(x11->xcb_conn, output->win);
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}
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static void output_make_current(struct wlr_output *wlr_output) {
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struct wlr_x11_output *output = (struct wlr_x11_output *)wlr_output;
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struct wlr_x11_backend *x11 = output->x11;
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if (!eglMakeCurrent(x11->egl.display, output->surf, output->surf, x11->egl.context)) {
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wlr_log(L_ERROR, "eglMakeCurrent failed: %s", egl_error());
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}
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}
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static void output_swap_buffers(struct wlr_output *wlr_output) {
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struct wlr_x11_output *output = (struct wlr_x11_output *)wlr_output;
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struct wlr_x11_backend *x11 = output->x11;
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if (!eglSwapBuffers(x11->egl.display, output->surf)) {
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wlr_log(L_ERROR, "eglSwapBuffers failed: %s", egl_error());
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}
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}
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static struct wlr_output_impl output_impl = {
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.transform = output_transform,
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.destroy = output_destroy,
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.make_current = output_make_current,
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.swap_buffers = output_swap_buffers,
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};
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@ -0,0 +1,56 @@
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#ifndef WLR_X11_H
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#define WLR_X11_H
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#include <stdbool.h>
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#include <xcb/xcb.h>
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#include <X11/Xlib-xcb.h>
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#include <wayland-server.h>
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#include <wlr/egl.h>
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#include <wlr/types/wlr_output.h>
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#include <wlr/types/wlr_input_device.h>
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|
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struct wlr_x11_backend;
|
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|
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struct wlr_x11_output {
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struct wlr_output wlr_output;
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struct wlr_x11_backend *x11;
|
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|
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xcb_window_t win;
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EGLSurface surf;
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};
|
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|
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struct wlr_x11_atom {
|
||||
xcb_intern_atom_cookie_t cookie;
|
||||
xcb_intern_atom_reply_t *reply;
|
||||
};
|
||||
|
||||
struct wlr_x11_backend {
|
||||
struct wlr_backend backend;
|
||||
struct wl_display *wl_display;
|
||||
|
||||
Display *xlib_conn;
|
||||
xcb_connection_t *xcb_conn;
|
||||
xcb_screen_t *screen;
|
||||
|
||||
struct wlr_x11_output output;
|
||||
|
||||
struct wlr_keyboard keyboard;
|
||||
struct wlr_input_device keyboard_dev;
|
||||
|
||||
struct wlr_pointer pointer;
|
||||
struct wlr_input_device pointer_dev;
|
||||
|
||||
struct wlr_egl egl;
|
||||
struct wl_event_source *event_source;
|
||||
struct wl_event_source *frame_timer;
|
||||
|
||||
struct {
|
||||
struct wlr_x11_atom wm_protocols;
|
||||
struct wlr_x11_atom wm_delete_window;
|
||||
} atoms;
|
||||
|
||||
// The time we last received an event
|
||||
xcb_timestamp_t time;
|
||||
};
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,13 @@
|
|||
#ifndef WLR_BACKEND_X11_H
|
||||
#define WLR_BACKEND_X11_H
|
||||
|
||||
#include <stdbool.h>
|
||||
#include <wayland-server.h>
|
||||
#include <wlr/backend.h>
|
||||
|
||||
struct wlr_backend *wlr_x11_backend_create(struct wl_display *display,
|
||||
const char *x11_display);
|
||||
|
||||
bool wlr_backend_is_x11(struct wlr_backend *backend);
|
||||
|
||||
#endif
|
||||
|
|
@ -30,7 +30,7 @@ struct wlr_egl {
|
|||
* Initializes an egl context for the given platform and remote display.
|
||||
* Will attempt to load all possibly required api functions.
|
||||
*/
|
||||
bool wlr_egl_init(struct wlr_egl *egl, EGLenum platform, void *display);
|
||||
bool wlr_egl_init(struct wlr_egl *egl, EGLenum platform, EGLint visual_id, void *display);
|
||||
|
||||
/**
|
||||
* Frees all related egl resources, makes the context not-current and
|
||||
|
|
|
|||
|
|
@ -45,6 +45,7 @@ udev = dependency('libudev')
|
|||
pixman = dependency('pixman-1')
|
||||
xcb = dependency('xcb')
|
||||
xcb_composite = dependency('xcb-composite')
|
||||
x11_xcb = dependency('x11-xcb')
|
||||
libcap = dependency('libcap', required: false)
|
||||
systemd = dependency('libsystemd', required: false)
|
||||
elogind = dependency('libelogind', required: false)
|
||||
|
|
@ -85,6 +86,7 @@ wlr_deps = [
|
|||
pixman,
|
||||
xcb,
|
||||
xcb_composite,
|
||||
x11_xcb,
|
||||
libcap,
|
||||
systemd,
|
||||
math,
|
||||
|
|
|
|||
23
render/egl.c
23
render/egl.c
|
|
@ -1,7 +1,6 @@
|
|||
#include <EGL/egl.h>
|
||||
#include <EGL/eglext.h>
|
||||
#include <GLES2/gl2.h>
|
||||
#include <gbm.h> // GBM_FORMAT_XRGB8888
|
||||
#include <stdlib.h>
|
||||
#include <wlr/util/log.h>
|
||||
#include <wlr/egl.h>
|
||||
|
|
@ -68,7 +67,7 @@ static bool egl_exts(struct wlr_egl *egl) {
|
|||
return true;
|
||||
}
|
||||
|
||||
static bool egl_get_config(EGLDisplay disp, EGLConfig *out, EGLenum platform) {
|
||||
static bool egl_get_config(EGLDisplay disp, EGLConfig *out, EGLint visual_id) {
|
||||
EGLint count = 0, matched = 0, ret;
|
||||
|
||||
ret = eglGetConfigs(disp, NULL, 0, &count);
|
||||
|
|
@ -86,21 +85,13 @@ static bool egl_get_config(EGLDisplay disp, EGLConfig *out, EGLenum platform) {
|
|||
}
|
||||
|
||||
for (int i = 0; i < matched; ++i) {
|
||||
EGLint gbm_format;
|
||||
|
||||
if (platform == EGL_PLATFORM_WAYLAND_EXT) {
|
||||
*out = configs[i];
|
||||
return true;
|
||||
}
|
||||
|
||||
if (!eglGetConfigAttrib(disp,
|
||||
configs[i],
|
||||
EGL_NATIVE_VISUAL_ID,
|
||||
&gbm_format)) {
|
||||
EGLint visual;
|
||||
if (!eglGetConfigAttrib(disp, configs[i],
|
||||
EGL_NATIVE_VISUAL_ID, &visual)) {
|
||||
continue;
|
||||
}
|
||||
|
||||
if (gbm_format == GBM_FORMAT_ARGB8888) {
|
||||
if (visual == visual_id) {
|
||||
*out = configs[i];
|
||||
return true;
|
||||
}
|
||||
|
|
@ -110,7 +101,7 @@ static bool egl_get_config(EGLDisplay disp, EGLConfig *out, EGLenum platform) {
|
|||
return false;
|
||||
}
|
||||
|
||||
bool wlr_egl_init(struct wlr_egl *egl, EGLenum platform,
|
||||
bool wlr_egl_init(struct wlr_egl *egl, EGLenum platform, EGLint visual_id,
|
||||
void *remote_display) {
|
||||
if (!egl_exts(egl)) {
|
||||
return false;
|
||||
|
|
@ -133,7 +124,7 @@ bool wlr_egl_init(struct wlr_egl *egl, EGLenum platform,
|
|||
goto error;
|
||||
}
|
||||
|
||||
if (!egl_get_config(egl->display, &egl->config, platform)) {
|
||||
if (!egl_get_config(egl->display, &egl->config, visual_id)) {
|
||||
wlr_log(L_ERROR, "Failed to get EGL config");
|
||||
goto error;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue