Use xcb atoms properly
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c986cc24a9
commit
902d6cc240
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@ -15,7 +15,6 @@
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#include <wlr/render/gles2.h>
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#include <wlr/util/log.h>
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#include <X11/Xlib-xcb.h>
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#include <xcb/glx.h>
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#include <xcb/xcb.h>
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#ifdef __linux__
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#include <linux/input-event-codes.h>
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@ -25,6 +24,8 @@
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#include "backend/x11.h"
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#include "util/signal.h"
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#define XCB_EVENT_RESPONSE_TYPE_MASK 0x7f
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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 struct wlr_input_device_impl input_device_impl = { 0 };
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@ -44,7 +45,7 @@ static uint32_t xcb_button_to_wl(uint32_t button) {
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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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switch (event->response_type & XCB_EVENT_RESPONSE_TYPE_MASK) {
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case XCB_EXPOSE: {
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wlr_output_send_frame(&output->wlr_output);
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break;
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@ -144,9 +145,14 @@ static bool handle_x11_event(struct wlr_x11_backend *x11, xcb_generic_event_t *e
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wlr_signal_emit_safe(&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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case XCB_CLIENT_MESSAGE: {
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xcb_client_message_event_t *ev = (xcb_client_message_event_t *)event;
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if (ev->data.data32[0] == x11->atoms.wm_delete_window) {
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wl_display_terminate(x11->wl_display);
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return true;
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}
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break;
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}
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default:
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@ -181,13 +187,6 @@ static int signal_frame(void *data) {
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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),
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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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static void parse_xcb_setup(struct wlr_output *output, xcb_connection_t *xcb_conn) {
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const xcb_setup_t *xcb_setup = xcb_get_setup(xcb_conn);
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@ -231,20 +230,54 @@ static bool wlr_x11_backend_start(struct wlr_backend *backend) {
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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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init_atom(x11, &x11->atoms.net_wm_name, 1, "_NET_WM_NAME");
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init_atom(x11, &x11->atoms.utf8_string, 0, "UTF8_STRING");
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struct {
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const char *name;
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xcb_intern_atom_cookie_t cookie;
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xcb_atom_t *atom;
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} atom[] = {
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{
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.name = "WM_PROTOCOLS",
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.atom = &x11->atoms.wm_protocols,
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},
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{
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.name = "WM_DELETE_WINDOW",
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.atom = &x11->atoms.wm_delete_window,
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},
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{
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.name = "_NET_WM_NAME",
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.atom = &x11->atoms.net_wm_name,
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},
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{
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.name = "UTF8_STRING",
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.atom = &x11->atoms.utf8_string,
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},
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};
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for (size_t i = 0; i < sizeof(atom) / sizeof(atom[0]); ++i) {
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atom[i].cookie = xcb_intern_atom(x11->xcb_conn,
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true, strlen(atom[i].name), atom[i].name);
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}
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for (size_t i = 0; i < sizeof(atom) / sizeof(atom[0]); ++i) {
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xcb_intern_atom_reply_t *reply = xcb_intern_atom_reply(
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x11->xcb_conn, atom[i].cookie, NULL);
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if (reply) {
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*atom[i].atom = reply->atom;
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free(reply);
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} else {
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*atom[i].atom = XCB_ATOM_NONE;
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}
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}
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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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x11->atoms.wm_protocols, XCB_ATOM_ATOM, 32, 1,
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&x11->atoms.wm_delete_window);
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char title[32];
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if (snprintf(title, sizeof(title), "wlroots - %s", output->wlr_output.name)) {
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xcb_change_property(x11->xcb_conn, XCB_PROP_MODE_REPLACE, output->win,
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x11->atoms.net_wm_name.reply->atom,
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x11->atoms.utf8_string.reply->atom, 8,
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x11->atoms.net_wm_name, x11->atoms.utf8_string, 8,
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strlen(title), title);
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}
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@ -17,11 +17,6 @@ struct wlr_x11_output {
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EGLSurface surf;
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};
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struct wlr_x11_atom {
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xcb_intern_atom_cookie_t cookie;
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xcb_intern_atom_reply_t *reply;
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};
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struct wlr_x11_backend {
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struct wlr_backend backend;
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struct wl_display *wl_display;
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@ -44,10 +39,10 @@ struct wlr_x11_backend {
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struct wl_event_source *frame_timer;
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struct {
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struct wlr_x11_atom wm_protocols;
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struct wlr_x11_atom wm_delete_window;
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struct wlr_x11_atom net_wm_name;
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struct wlr_x11_atom utf8_string;
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xcb_atom_t wm_protocols;
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xcb_atom_t wm_delete_window;
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xcb_atom_t net_wm_name;
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xcb_atom_t utf8_string;
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} atoms;
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// The time we last received an event
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