/* * Copyright © 2008-2011 Kristian Høgsberg * Copyright © 2010-2011 Intel Corporation * Copyright © 2013 Vasily Khoruzhick * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial * portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include "config.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef HAVE_XCB_XKB #include #endif #include #include #include #include #include #include "shared/helpers.h" #include "shared/image-loader.h" #include "shared/timespec-util.h" #include "shared/file-util.h" #include "renderer-gl/gl-renderer.h" #include "shared/weston-egl-ext.h" #include "pixman-renderer.h" #include "presentation-time-server-protocol.h" #include "linux-dmabuf.h" #include "linux-explicit-synchronization.h" #include #define DEFAULT_AXIS_STEP_DISTANCE 10 #define WINDOW_MIN_WIDTH 128 #define WINDOW_MIN_HEIGHT 128 #define WINDOW_MAX_WIDTH 8192 #define WINDOW_MAX_HEIGHT 8192 static const uint32_t x11_formats[] = { DRM_FORMAT_XRGB8888, }; struct x11_backend { struct weston_backend base; struct weston_compositor *compositor; Display *dpy; xcb_connection_t *conn; xcb_screen_t *screen; xcb_cursor_t null_cursor; struct wl_array keys; struct wl_event_source *xcb_source; struct xkb_keymap *xkb_keymap; unsigned int has_xkb; uint8_t xkb_event_base; int fullscreen; int no_input; int use_pixman; int has_net_wm_state_fullscreen; /* We could map multi-pointer X to multiple wayland seats, but * for now we only support core X input. */ struct weston_seat core_seat; double prev_x; double prev_y; struct { xcb_atom_t wm_protocols; xcb_atom_t wm_normal_hints; xcb_atom_t wm_size_hints; xcb_atom_t wm_delete_window; xcb_atom_t wm_class; xcb_atom_t net_wm_name; xcb_atom_t net_supporting_wm_check; xcb_atom_t net_supported; xcb_atom_t net_wm_icon; xcb_atom_t net_wm_state; xcb_atom_t net_wm_state_fullscreen; xcb_atom_t string; xcb_atom_t utf8_string; xcb_atom_t cardinal; xcb_atom_t xkb_names; } atom; }; struct x11_head { struct weston_head base; }; struct x11_output { struct weston_output base; xcb_window_t window; struct weston_mode mode; struct weston_mode native; struct wl_event_source *finish_frame_timer; xcb_gc_t gc; xcb_shm_seg_t segment; pixman_image_t *hw_surface; int shm_id; void *buf; uint8_t depth; int32_t scale; bool resize_pending; bool window_resized; }; struct window_delete_data { struct x11_backend *backend; xcb_window_t window; }; struct gl_renderer_interface *gl_renderer; static inline struct x11_head * to_x11_head(struct weston_head *base) { return container_of(base, struct x11_head, base); } static inline struct x11_output * to_x11_output(struct weston_output *base) { return container_of(base, struct x11_output, base); } static inline struct x11_backend * to_x11_backend(struct weston_compositor *base) { return container_of(base->backend, struct x11_backend, base); } static xcb_screen_t * x11_compositor_get_default_screen(struct x11_backend *b) { xcb_screen_iterator_t iter; int i, screen_nbr = XDefaultScreen(b->dpy); iter = xcb_setup_roots_iterator(xcb_get_setup(b->conn)); for (i = 0; iter.rem; xcb_screen_next(&iter), i++) if (i == screen_nbr) return iter.data; return xcb_setup_roots_iterator(xcb_get_setup(b->conn)).data; } static struct xkb_keymap * x11_backend_get_keymap(struct x11_backend *b) { xcb_get_property_cookie_t cookie; xcb_get_property_reply_t *reply; struct xkb_rule_names names; struct xkb_keymap *ret; const char *value_all, *value_part; int length_all, length_part; memset(&names, 0, sizeof(names)); cookie = xcb_get_property(b->conn, 0, b->screen->root, b->atom.xkb_names, b->atom.string, 0, 1024); reply = xcb_get_property_reply(b->conn, cookie, NULL); if (reply == NULL) return NULL; value_all = xcb_get_property_value(reply); length_all = xcb_get_property_value_length(reply); value_part = value_all; #define copy_prop_value(to) \ length_part = strlen(value_part); \ if (value_part + length_part < (value_all + length_all) && \ length_part > 0) \ names.to = value_part; \ value_part += length_part + 1; copy_prop_value(rules); copy_prop_value(model); copy_prop_value(layout); copy_prop_value(variant); copy_prop_value(options); #undef copy_prop_value ret = xkb_keymap_new_from_names(b->compositor->xkb_context, &names, 0); free(reply); return ret; } static uint32_t get_xkb_mod_mask(struct x11_backend *b, uint32_t in) { struct weston_keyboard *keyboard = weston_seat_get_keyboard(&b->core_seat); struct weston_xkb_info *info = keyboard->xkb_info; uint32_t ret = 0; if ((in & ShiftMask) && info->shift_mod != XKB_MOD_INVALID) ret |= (1 << info->shift_mod); if ((in & LockMask) && info->caps_mod != XKB_MOD_INVALID) ret |= (1 << info->caps_mod); if ((in & ControlMask) && info->ctrl_mod != XKB_MOD_INVALID) ret |= (1 << info->ctrl_mod); if ((in & Mod1Mask) && info->alt_mod != XKB_MOD_INVALID) ret |= (1 << info->alt_mod); if ((in & Mod2Mask) && info->mod2_mod != XKB_MOD_INVALID) ret |= (1 << info->mod2_mod); if ((in & Mod3Mask) && info->mod3_mod != XKB_MOD_INVALID) ret |= (1 << info->mod3_mod); if ((in & Mod4Mask) && info->super_mod != XKB_MOD_INVALID) ret |= (1 << info->super_mod); if ((in & Mod5Mask) && info->mod5_mod != XKB_MOD_INVALID) ret |= (1 << info->mod5_mod); return ret; } static void x11_backend_setup_xkb(struct x11_backend *b) { #ifndef HAVE_XCB_XKB weston_log("XCB-XKB not available during build\n"); b->has_xkb = 0; b->xkb_event_base = 0; return; #else struct weston_keyboard *keyboard; const xcb_query_extension_reply_t *ext; xcb_generic_error_t *error; xcb_void_cookie_t select; xcb_xkb_use_extension_cookie_t use_ext; xcb_xkb_use_extension_reply_t *use_ext_reply; xcb_xkb_per_client_flags_cookie_t pcf; xcb_xkb_per_client_flags_reply_t *pcf_reply; xcb_xkb_get_state_cookie_t state; xcb_xkb_get_state_reply_t *state_reply; uint32_t values[1] = { XCB_EVENT_MASK_PROPERTY_CHANGE }; b->has_xkb = 0; b->xkb_event_base = 0; ext = xcb_get_extension_data(b->conn, &xcb_xkb_id); if (!ext) { weston_log("XKB extension not available on host X11 server\n"); return; } b->xkb_event_base = ext->first_event; select = xcb_xkb_select_events_checked(b->conn, XCB_XKB_ID_USE_CORE_KBD, XCB_XKB_EVENT_TYPE_STATE_NOTIFY, 0, XCB_XKB_EVENT_TYPE_STATE_NOTIFY, 0, 0, NULL); error = xcb_request_check(b->conn, select); if (error) { weston_log("error: failed to select for XKB state events\n"); free(error); return; } use_ext = xcb_xkb_use_extension(b->conn, XCB_XKB_MAJOR_VERSION, XCB_XKB_MINOR_VERSION); use_ext_reply = xcb_xkb_use_extension_reply(b->conn, use_ext, NULL); if (!use_ext_reply) { weston_log("couldn't start using XKB extension\n"); return; } if (!use_ext_reply->supported) { weston_log("XKB extension version on the server is too old " "(want %d.%d, has %d.%d)\n", XCB_XKB_MAJOR_VERSION, XCB_XKB_MINOR_VERSION, use_ext_reply->serverMajor, use_ext_reply->serverMinor); free(use_ext_reply); return; } free(use_ext_reply); pcf = xcb_xkb_per_client_flags(b->conn, XCB_XKB_ID_USE_CORE_KBD, XCB_XKB_PER_CLIENT_FLAG_DETECTABLE_AUTO_REPEAT, XCB_XKB_PER_CLIENT_FLAG_DETECTABLE_AUTO_REPEAT, 0, 0, 0); pcf_reply = xcb_xkb_per_client_flags_reply(b->conn, pcf, NULL); if (!pcf_reply || !(pcf_reply->value & XCB_XKB_PER_CLIENT_FLAG_DETECTABLE_AUTO_REPEAT)) { weston_log("failed to set XKB per-client flags, not using " "detectable repeat\n"); free(pcf_reply); return; } free(pcf_reply); state = xcb_xkb_get_state(b->conn, XCB_XKB_ID_USE_CORE_KBD); state_reply = xcb_xkb_get_state_reply(b->conn, state, NULL); if (!state_reply) { weston_log("failed to get initial XKB state\n"); return; } keyboard = weston_seat_get_keyboard(&b->core_seat); xkb_state_update_mask(keyboard->xkb_state.state, get_xkb_mod_mask(b, state_reply->baseMods), get_xkb_mod_mask(b, state_reply->latchedMods), get_xkb_mod_mask(b, state_reply->lockedMods), 0, 0, state_reply->group); free(state_reply); xcb_change_window_attributes(b->conn, b->screen->root, XCB_CW_EVENT_MASK, values); b->has_xkb = 1; #endif } #ifdef HAVE_XCB_XKB static void update_xkb_keymap(struct x11_backend *b) { struct xkb_keymap *keymap; keymap = x11_backend_get_keymap(b); if (!keymap) { weston_log("failed to get XKB keymap\n"); return; } weston_seat_update_keymap(&b->core_seat, keymap); xkb_keymap_unref(keymap); } #endif static int x11_input_create(struct x11_backend *b, int no_input) { struct xkb_keymap *keymap; weston_seat_init(&b->core_seat, b->compositor, "default"); if (no_input) return 0; weston_seat_init_pointer(&b->core_seat); keymap = x11_backend_get_keymap(b); if (weston_seat_init_keyboard(&b->core_seat, keymap) < 0) return -1; xkb_keymap_unref(keymap); x11_backend_setup_xkb(b); return 0; } static void x11_input_destroy(struct x11_backend *b) { weston_seat_release(&b->core_seat); } static int x11_output_start_repaint_loop(struct weston_output *output) { struct timespec ts; weston_compositor_read_presentation_clock(output->compositor, &ts); weston_output_finish_frame(output, &ts, WP_PRESENTATION_FEEDBACK_INVALID); return 0; } static int x11_output_repaint_gl(struct weston_output *output_base, pixman_region32_t *damage, void *repaint_data) { struct x11_output *output = to_x11_output(output_base); struct weston_compositor *ec = output->base.compositor; ec->renderer->repaint_output(output_base, damage); pixman_region32_subtract(&ec->primary_plane.damage, &ec->primary_plane.damage, damage); wl_event_source_timer_update(output->finish_frame_timer, 10); return 0; } static void set_clip_for_output(struct weston_output *output_base, pixman_region32_t *region) { struct x11_output *output = to_x11_output(output_base); struct weston_compositor *ec = output->base.compositor; struct x11_backend *b = to_x11_backend(ec); pixman_region32_t transformed_region; pixman_box32_t *rects; xcb_rectangle_t *output_rects; xcb_void_cookie_t cookie; int nrects, i; xcb_generic_error_t *err; pixman_region32_init(&transformed_region); pixman_region32_copy(&transformed_region, region); pixman_region32_translate(&transformed_region, -output_base->x, -output_base->y); weston_transformed_region(output_base->width, output_base->height, output_base->transform, output_base->current_scale, &transformed_region, &transformed_region); rects = pixman_region32_rectangles(&transformed_region, &nrects); output_rects = calloc(nrects, sizeof(xcb_rectangle_t)); if (output_rects == NULL) { pixman_region32_fini(&transformed_region); return; } for (i = 0; i < nrects; i++) { output_rects[i].x = rects[i].x1; output_rects[i].y = rects[i].y1; output_rects[i].width = rects[i].x2 - rects[i].x1; output_rects[i].height = rects[i].y2 - rects[i].y1; } pixman_region32_fini(&transformed_region); cookie = xcb_set_clip_rectangles_checked(b->conn, XCB_CLIP_ORDERING_UNSORTED, output->gc, 0, 0, nrects, output_rects); err = xcb_request_check(b->conn, cookie); if (err != NULL) { weston_log("Failed to set clip rects, err: %d\n", err->error_code); free(err); } free(output_rects); } static int x11_output_repaint_shm(struct weston_output *output_base, pixman_region32_t *damage, void *repaint_data) { struct x11_output *output = to_x11_output(output_base); struct weston_compositor *ec = output->base.compositor; struct x11_backend *b = to_x11_backend(ec); xcb_void_cookie_t cookie; xcb_generic_error_t *err; pixman_renderer_output_set_buffer(output_base, output->hw_surface); ec->renderer->repaint_output(output_base, damage); pixman_region32_subtract(&ec->primary_plane.damage, &ec->primary_plane.damage, damage); set_clip_for_output(output_base, damage); cookie = xcb_shm_put_image_checked(b->conn, output->window, output->gc, pixman_image_get_width(output->hw_surface), pixman_image_get_height(output->hw_surface), 0, 0, pixman_image_get_width(output->hw_surface), pixman_image_get_height(output->hw_surface), 0, 0, output->depth, XCB_IMAGE_FORMAT_Z_PIXMAP, 0, output->segment, 0); err = xcb_request_check(b->conn, cookie); if (err != NULL) { weston_log("Failed to put shm image, err: %d\n", err->error_code); free(err); } wl_event_source_timer_update(output->finish_frame_timer, 10); return 0; } static int finish_frame_handler(void *data) { struct x11_output *output = data; struct timespec ts; weston_compositor_read_presentation_clock(output->base.compositor, &ts); weston_output_finish_frame(&output->base, &ts, 0); return 1; } static void x11_output_deinit_shm(struct x11_backend *b, struct x11_output *output) { xcb_void_cookie_t cookie; xcb_generic_error_t *err; xcb_free_gc(b->conn, output->gc); pixman_image_unref(output->hw_surface); output->hw_surface = NULL; cookie = xcb_shm_detach_checked(b->conn, output->segment); err = xcb_request_check(b->conn, cookie); if (err) { weston_log("xcb_shm_detach failed, error %d\n", err->error_code); free(err); } shmdt(output->buf); } static void x11_output_set_wm_protocols(struct x11_backend *b, struct x11_output *output) { xcb_atom_t list[1]; list[0] = b->atom.wm_delete_window; xcb_change_property (b->conn, XCB_PROP_MODE_REPLACE, output->window, b->atom.wm_protocols, XCB_ATOM_ATOM, 32, ARRAY_LENGTH(list), list); } struct wm_normal_hints { uint32_t flags; uint32_t pad[4]; int32_t min_width, min_height; int32_t max_width, max_height; int32_t width_inc, height_inc; int32_t min_aspect_x, min_aspect_y; int32_t max_aspect_x, max_aspect_y; int32_t base_width, base_height; int32_t win_gravity; }; #define WM_NORMAL_HINTS_MIN_SIZE 16 #define WM_NORMAL_HINTS_MAX_SIZE 32 static void x11_output_set_icon(struct x11_backend *b, struct x11_output *output, const char *filename) { uint32_t *icon; int32_t width, height; pixman_image_t *image; image = load_image(filename); if (!image) return; width = pixman_image_get_width(image); height = pixman_image_get_height(image); icon = malloc(width * height * 4 + 8); if (!icon) { pixman_image_unref(image); return; } icon[0] = width; icon[1] = height; memcpy(icon + 2, pixman_image_get_data(image), width * height * 4); xcb_change_property(b->conn, XCB_PROP_MODE_REPLACE, output->window, b->atom.net_wm_icon, b->atom.cardinal, 32, width * height + 2, icon); free(icon); pixman_image_unref(image); } static void x11_output_wait_for_map(struct x11_backend *b, struct x11_output *output) { xcb_map_notify_event_t *map_notify; xcb_configure_notify_event_t *configure_notify; xcb_generic_event_t *event; int mapped = 0, configured = 0; uint8_t response_type; /* This isn't the nicest way to do this. Ideally, we could * just go back to the main loop and once we get the configure * notify, we add the output to the compositor. While we do * support output hotplug, we can't start up with no outputs. * We could add the output and then resize once we get the * configure notify, but we don't want to start up and * immediately resize the output. * * Also, some window managers don't give us our final * fullscreen size before map_notify, so if we don't get a * configure_notify before map_notify, we just wait for the * first one and hope that's our size. */ xcb_flush(b->conn); while (!mapped || !configured) { event = xcb_wait_for_event(b->conn); response_type = event->response_type & ~0x80; switch (response_type) { case XCB_MAP_NOTIFY: map_notify = (xcb_map_notify_event_t *) event; if (map_notify->window == output->window) mapped = 1; break; case XCB_CONFIGURE_NOTIFY: configure_notify = (xcb_configure_notify_event_t *) event; if (configure_notify->width % output->scale != 0 || configure_notify->height % output->scale != 0) weston_log("Resolution is not a multiple of screen size, rounding\n"); output->mode.width = configure_notify->width; output->mode.height = configure_notify->height; configured = 1; break; } } } static xcb_visualtype_t * find_visual_by_id(xcb_screen_t *screen, xcb_visualid_t id) { xcb_depth_iterator_t i; xcb_visualtype_iterator_t j; for (i = xcb_screen_allowed_depths_iterator(screen); i.rem; xcb_depth_next(&i)) { for (j = xcb_depth_visuals_iterator(i.data); j.rem; xcb_visualtype_next(&j)) { if (j.data->visual_id == id) return j.data; } } return 0; } static uint8_t get_depth_of_visual(xcb_screen_t *screen, xcb_visualid_t id) { xcb_depth_iterator_t i; xcb_visualtype_iterator_t j; for (i = xcb_screen_allowed_depths_iterator(screen); i.rem; xcb_depth_next(&i)) { for (j = xcb_depth_visuals_iterator(i.data); j.rem; xcb_visualtype_next(&j)) { if (j.data->visual_id == id) return i.data->depth; } } return 0; } static int x11_output_init_shm(struct x11_backend *b, struct x11_output *output, int width, int height) { xcb_visualtype_t *visual_type; xcb_screen_t *screen; xcb_format_iterator_t fmt; xcb_void_cookie_t cookie; xcb_generic_error_t *err; const xcb_query_extension_reply_t *ext; int bitsperpixel = 0; pixman_format_code_t pixman_format; /* Check if SHM is available */ ext = xcb_get_extension_data(b->conn, &xcb_shm_id); if (ext == NULL || !ext->present) { /* SHM is missing */ weston_log("SHM extension is not available\n"); errno = ENOENT; return -1; } screen = x11_compositor_get_default_screen(b); visual_type = find_visual_by_id(screen, screen->root_visual); if (!visual_type) { weston_log("Failed to lookup visual for root window\n"); errno = ENOENT; return -1; } weston_log("Found visual, bits per value: %d, red_mask: %.8x, green_mask: %.8x, blue_mask: %.8x\n", visual_type->bits_per_rgb_value, visual_type->red_mask, visual_type->green_mask, visual_type->blue_mask); output->depth = get_depth_of_visual(screen, screen->root_visual); weston_log("Visual depth is %d\n", output->depth); for (fmt = xcb_setup_pixmap_formats_iterator(xcb_get_setup(b->conn)); fmt.rem; xcb_format_next(&fmt)) { if (fmt.data->depth == output->depth) { bitsperpixel = fmt.data->bits_per_pixel; break; } } weston_log("Found format for depth %d, bpp: %d\n", output->depth, bitsperpixel); if (bitsperpixel == 32 && visual_type->red_mask == 0xff0000 && visual_type->green_mask == 0x00ff00 && visual_type->blue_mask == 0x0000ff) { weston_log("Will use x8r8g8b8 format for SHM surfaces\n"); pixman_format = PIXMAN_x8r8g8b8; } else if (bitsperpixel == 16 && visual_type->red_mask == 0x00f800 && visual_type->green_mask == 0x0007e0 && visual_type->blue_mask == 0x00001f) { weston_log("Will use r5g6b5 format for SHM surfaces\n"); pixman_format = PIXMAN_r5g6b5; } else { weston_log("Can't find appropriate format for SHM pixmap\n"); errno = ENOTSUP; return -1; } /* Create SHM segment and attach it */ output->shm_id = shmget(IPC_PRIVATE, width * height * (bitsperpixel / 8), IPC_CREAT | S_IRWXU); if (output->shm_id == -1) { weston_log("x11shm: failed to allocate SHM segment\n"); return -1; } output->buf = shmat(output->shm_id, NULL, 0 /* read/write */); if (-1 == (long)output->buf) { weston_log("x11shm: failed to attach SHM segment\n"); return -1; } output->segment = xcb_generate_id(b->conn); cookie = xcb_shm_attach_checked(b->conn, output->segment, output->shm_id, 1); err = xcb_request_check(b->conn, cookie); if (err) { weston_log("x11shm: xcb_shm_attach error %d, op code %d, resource id %d\n", err->error_code, err->major_code, err->minor_code); free(err); return -1; } shmctl(output->shm_id, IPC_RMID, NULL); /* Now create pixman image */ output->hw_surface = pixman_image_create_bits(pixman_format, width, height, output->buf, width * (bitsperpixel / 8)); output->gc = xcb_generate_id(b->conn); xcb_create_gc(b->conn, output->gc, output->window, 0, NULL); return 0; } static int x11_output_switch_mode(struct weston_output *base, struct weston_mode *mode) { struct x11_backend *b; struct x11_output *output; static uint32_t values[2]; int ret; if (base == NULL) { weston_log("output is NULL.\n"); return -1; } if (mode == NULL) { weston_log("mode is NULL.\n"); return -1; } b = to_x11_backend(base->compositor); output = to_x11_output(base); if (mode->width == output->mode.width && mode->height == output->mode.height) return 0; if (mode->width < WINDOW_MIN_WIDTH || mode->width > WINDOW_MAX_WIDTH) return -1; if (mode->height < WINDOW_MIN_HEIGHT || mode->height > WINDOW_MAX_HEIGHT) return -1; /* xcb_configure_window will create an event, and we could end up being called twice */ output->resize_pending = true; /* window could've been resized by the user, so don't do it twice */ if (!output->window_resized) { values[0] = mode->width; values[1] = mode->height; xcb_configure_window(b->conn, output->window, XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT, values); } output->mode.width = mode->width; output->mode.height = mode->height; if (b->use_pixman) { pixman_renderer_output_destroy(&output->base); x11_output_deinit_shm(b, output); if (x11_output_init_shm(b, output, output->base.current_mode->width, output->base.current_mode->height) < 0) { weston_log("Failed to initialize SHM for the X11 output\n"); return -1; } if (pixman_renderer_output_create(&output->base, PIXMAN_RENDERER_OUTPUT_USE_SHADOW) < 0) { weston_log("Failed to create pixman renderer for output\n"); x11_output_deinit_shm(b, output); return -1; } } else { Window xid = (Window) output->window; gl_renderer->output_destroy(&output->base); ret = gl_renderer->output_window_create(&output->base, (EGLNativeWindowType) output->window, &xid, x11_formats, ARRAY_LENGTH(x11_formats)); if (ret < 0) return -1; } output->resize_pending = false; output->window_resized = false; return 0; } static int x11_output_disable(struct weston_output *base) { struct x11_output *output = to_x11_output(base); struct x11_backend *backend = to_x11_backend(base->compositor); if (!output->base.enabled) return 0; wl_event_source_remove(output->finish_frame_timer); if (backend->use_pixman) { pixman_renderer_output_destroy(&output->base); x11_output_deinit_shm(backend, output); } else { gl_renderer->output_destroy(&output->base); } xcb_destroy_window(backend->conn, output->window); xcb_flush(backend->conn); return 0; } static void x11_output_destroy(struct weston_output *base) { struct x11_output *output = to_x11_output(base); x11_output_disable(&output->base); weston_output_release(&output->base); free(output); } static int x11_output_enable(struct weston_output *base) { struct x11_output *output = to_x11_output(base); struct x11_backend *b = to_x11_backend(base->compositor); static const char name[] = "Weston Compositor"; static const char class[] = "weston-1\0Weston Compositor"; char *title = NULL; xcb_screen_t *screen; struct wm_normal_hints normal_hints; struct wl_event_loop *loop; char *icon_filename; int ret; uint32_t mask = XCB_CW_EVENT_MASK | XCB_CW_CURSOR; xcb_atom_t atom_list[1]; uint32_t values[2] = { XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_STRUCTURE_NOTIFY, 0 }; if (!b->no_input) values[0] |= XCB_EVENT_MASK_KEY_PRESS | XCB_EVENT_MASK_KEY_RELEASE | XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE | XCB_EVENT_MASK_POINTER_MOTION | XCB_EVENT_MASK_ENTER_WINDOW | XCB_EVENT_MASK_LEAVE_WINDOW | XCB_EVENT_MASK_KEYMAP_STATE | XCB_EVENT_MASK_FOCUS_CHANGE; values[1] = b->null_cursor; output->window = xcb_generate_id(b->conn); screen = x11_compositor_get_default_screen(b); xcb_create_window(b->conn, XCB_COPY_FROM_PARENT, output->window, screen->root, 0, 0, output->base.current_mode->width, output->base.current_mode->height, 0, XCB_WINDOW_CLASS_INPUT_OUTPUT, screen->root_visual, mask, values); if (b->fullscreen) { atom_list[0] = b->atom.net_wm_state_fullscreen; xcb_change_property(b->conn, XCB_PROP_MODE_REPLACE, output->window, b->atom.net_wm_state, XCB_ATOM_ATOM, 32, ARRAY_LENGTH(atom_list), atom_list); } else { memset(&normal_hints, 0, sizeof normal_hints); normal_hints.flags = WM_NORMAL_HINTS_MAX_SIZE | WM_NORMAL_HINTS_MIN_SIZE; normal_hints.min_width = WINDOW_MIN_WIDTH; normal_hints.min_height = WINDOW_MIN_HEIGHT; normal_hints.max_width = WINDOW_MAX_WIDTH; normal_hints.max_height = WINDOW_MAX_HEIGHT; xcb_change_property(b->conn, XCB_PROP_MODE_REPLACE, output->window, b->atom.wm_normal_hints, b->atom.wm_size_hints, 32, sizeof normal_hints / 4, (uint8_t *) &normal_hints); } /* Set window name. Don't bother with non-EWMH WMs. */ if (output->base.name) { if (asprintf(&title, "%s - %s", name, output->base.name) < 0) title = NULL; } else { title = strdup(name); } if (title) { xcb_change_property(b->conn, XCB_PROP_MODE_REPLACE, output->window, b->atom.net_wm_name, b->atom.utf8_string, 8, strlen(title), title); free(title); } else { goto err; } xcb_change_property(b->conn, XCB_PROP_MODE_REPLACE, output->window, b->atom.wm_class, b->atom.string, 8, sizeof class, class); icon_filename = file_name_with_datadir("wayland.png"); x11_output_set_icon(b, output, icon_filename); free(icon_filename); x11_output_set_wm_protocols(b, output); xcb_map_window(b->conn, output->window); if (b->fullscreen) x11_output_wait_for_map(b, output); if (b->use_pixman) { if (x11_output_init_shm(b, output, output->base.current_mode->width, output->base.current_mode->height) < 0) { weston_log("Failed to initialize SHM for the X11 output\n"); goto err; } if (pixman_renderer_output_create(&output->base, PIXMAN_RENDERER_OUTPUT_USE_SHADOW) < 0) { weston_log("Failed to create pixman renderer for output\n"); x11_output_deinit_shm(b, output); goto err; } output->base.repaint = x11_output_repaint_shm; } else { /* eglCreatePlatformWindowSurfaceEXT takes a Window* * but eglCreateWindowSurface takes a Window. */ Window xid = (Window) output->window; ret = gl_renderer->output_window_create( &output->base, (EGLNativeWindowType) output->window, &xid, x11_formats, ARRAY_LENGTH(x11_formats)); if (ret < 0) goto err; output->base.repaint = x11_output_repaint_gl; } output->base.start_repaint_loop = x11_output_start_repaint_loop; output->base.assign_planes = NULL; output->base.set_backlight = NULL; output->base.set_dpms = NULL; output->base.switch_mode = x11_output_switch_mode; loop = wl_display_get_event_loop(b->compositor->wl_display); output->finish_frame_timer = wl_event_loop_add_timer(loop, finish_frame_handler, output); weston_log("x11 output %dx%d, window id %d\n", output->base.current_mode->width, output->base.current_mode->height, output->window); return 0; err: xcb_destroy_window(b->conn, output->window); xcb_flush(b->conn); return -1; } static int x11_output_set_size(struct weston_output *base, int width, int height) { struct x11_output *output = to_x11_output(base); struct x11_backend *b = to_x11_backend(base->compositor); struct weston_head *head; xcb_screen_t *scrn = b->screen; int output_width, output_height; /* We can only be called once. */ assert(!output->base.current_mode); /* Make sure we have scale set. */ assert(output->base.scale); if (width < WINDOW_MIN_WIDTH) { weston_log("Invalid width \"%d\" for output %s\n", width, output->base.name); return -1; } if (height < WINDOW_MIN_HEIGHT) { weston_log("Invalid height \"%d\" for output %s\n", height, output->base.name); return -1; } wl_list_for_each(head, &output->base.head_list, output_link) { weston_head_set_monitor_strings(head, "weston-X11", "none", NULL); weston_head_set_physical_size(head, width * scrn->width_in_millimeters / scrn->width_in_pixels, height * scrn->height_in_millimeters / scrn->height_in_pixels); } output_width = width * output->base.scale; output_height = height * output->base.scale; output->mode.flags = WL_OUTPUT_MODE_CURRENT | WL_OUTPUT_MODE_PREFERRED; output->mode.width = output_width; output->mode.height = output_height; output->mode.refresh = 60000; output->native = output->mode; output->scale = output->base.scale; wl_list_insert(&output->base.mode_list, &output->mode.link); output->base.current_mode = &output->mode; output->base.native_mode = &output->native; output->base.native_scale = output->base.scale; return 0; } static struct weston_output * x11_output_create(struct weston_compositor *compositor, const char *name) { struct x11_output *output; /* name can't be NULL. */ assert(name); output = zalloc(sizeof *output); if (!output) return NULL; weston_output_init(&output->base, compositor, name); output->base.destroy = x11_output_destroy; output->base.disable = x11_output_disable; output->base.enable = x11_output_enable; output->base.attach_head = NULL; weston_compositor_add_pending_output(&output->base, compositor); return &output->base; } static int x11_head_create(struct weston_compositor *compositor, const char *name) { struct x11_head *head; assert(name); head = zalloc(sizeof *head); if (!head) return -1; weston_head_init(&head->base, name); weston_head_set_connection_status(&head->base, true); weston_compositor_add_head(compositor, &head->base); return 0; } static void x11_head_destroy(struct x11_head *head) { weston_head_release(&head->base); free(head); } static struct x11_output * x11_backend_find_output(struct x11_backend *b, xcb_window_t window) { struct x11_output *output; wl_list_for_each(output, &b->compositor->output_list, base.link) { if (output->window == window) return output; } return NULL; } static void x11_backend_delete_window(struct x11_backend *b, xcb_window_t window) { struct x11_output *output; output = x11_backend_find_output(b, window); if (output) x11_output_destroy(&output->base); if (wl_list_empty(&b->compositor->output_list)) weston_compositor_exit(b->compositor); } static void delete_cb(void *data) { struct window_delete_data *wd = data; x11_backend_delete_window(wd->backend, wd->window); free(wd); } #ifdef HAVE_XCB_XKB static void update_xkb_state(struct x11_backend *b, xcb_xkb_state_notify_event_t *state) { struct weston_keyboard *keyboard = weston_seat_get_keyboard(&b->core_seat); xkb_state_update_mask(keyboard->xkb_state.state, get_xkb_mod_mask(b, state->baseMods), get_xkb_mod_mask(b, state->latchedMods), get_xkb_mod_mask(b, state->lockedMods), 0, 0, state->group); notify_modifiers(&b->core_seat, wl_display_next_serial(b->compositor->wl_display)); } #endif /** * This is monumentally unpleasant. If we don't have XCB-XKB bindings, * the best we can do (given that XCB also lacks XI2 support), is to take * the state from the core key events. Unfortunately that only gives us * the effective (i.e. union of depressed/latched/locked) state, and we * need the granularity. * * So we still update the state with every key event we see, but also use * the state field from X11 events as a mask so we don't get any stuck * modifiers. */ static void update_xkb_state_from_core(struct x11_backend *b, uint16_t x11_mask) { uint32_t mask = get_xkb_mod_mask(b, x11_mask); struct weston_keyboard *keyboard = weston_seat_get_keyboard(&b->core_seat); xkb_state_update_mask(keyboard->xkb_state.state, keyboard->modifiers.mods_depressed & mask, keyboard->modifiers.mods_latched & mask, keyboard->modifiers.mods_locked & mask, 0, 0, (x11_mask >> 13) & 3); notify_modifiers(&b->core_seat, wl_display_next_serial(b->compositor->wl_display)); } static void x11_backend_deliver_button_event(struct x11_backend *b, xcb_generic_event_t *event) { xcb_button_press_event_t *button_event = (xcb_button_press_event_t *) event; uint32_t button; struct x11_output *output; struct weston_pointer_axis_event weston_event; bool is_button_pressed = event->response_type == XCB_BUTTON_PRESS; struct timespec time = { 0 }; assert(event->response_type == XCB_BUTTON_PRESS || event->response_type == XCB_BUTTON_RELEASE); output = x11_backend_find_output(b, button_event->event); if (!output) return; if (is_button_pressed) xcb_grab_pointer(b->conn, 0, output->window, XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE | XCB_EVENT_MASK_POINTER_MOTION | XCB_EVENT_MASK_ENTER_WINDOW | XCB_EVENT_MASK_LEAVE_WINDOW, XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC, output->window, XCB_CURSOR_NONE, button_event->time); else xcb_ungrab_pointer(b->conn, button_event->time); if (!b->has_xkb) update_xkb_state_from_core(b, button_event->state); switch (button_event->detail) { case 1: button = BTN_LEFT; break; case 2: button = BTN_MIDDLE; break; case 3: button = BTN_RIGHT; break; case 4: /* Axis are measured in pixels, but the xcb events are discrete * steps. Therefore move the axis by some pixels every step. */ if (is_button_pressed) { weston_event.value = -DEFAULT_AXIS_STEP_DISTANCE; weston_event.discrete = -1; weston_event.has_discrete = true; weston_event.axis = WL_POINTER_AXIS_VERTICAL_SCROLL; weston_compositor_get_time(&time); notify_axis(&b->core_seat, &time, &weston_event); notify_pointer_frame(&b->core_seat); } return; case 5: if (is_button_pressed) { weston_event.value = DEFAULT_AXIS_STEP_DISTANCE; weston_event.discrete = 1; weston_event.has_discrete = true; weston_event.axis = WL_POINTER_AXIS_VERTICAL_SCROLL; weston_compositor_get_time(&time); notify_axis(&b->core_seat, &time, &weston_event); notify_pointer_frame(&b->core_seat); } return; case 6: if (is_button_pressed) { weston_event.value = -DEFAULT_AXIS_STEP_DISTANCE; weston_event.discrete = -1; weston_event.has_discrete = true; weston_event.axis = WL_POINTER_AXIS_HORIZONTAL_SCROLL; weston_compositor_get_time(&time); notify_axis(&b->core_seat, &time, &weston_event); notify_pointer_frame(&b->core_seat); } return; case 7: if (is_button_pressed) { weston_event.value = DEFAULT_AXIS_STEP_DISTANCE; weston_event.discrete = 1; weston_event.has_discrete = true; weston_event.axis = WL_POINTER_AXIS_HORIZONTAL_SCROLL; weston_compositor_get_time(&time); notify_axis(&b->core_seat, &time, &weston_event); notify_pointer_frame(&b->core_seat); } return; default: button = button_event->detail + BTN_SIDE - 8; break; } weston_compositor_get_time(&time); notify_button(&b->core_seat, &time, button, is_button_pressed ? WL_POINTER_BUTTON_STATE_PRESSED : WL_POINTER_BUTTON_STATE_RELEASED); notify_pointer_frame(&b->core_seat); } static void x11_backend_deliver_motion_event(struct x11_backend *b, xcb_generic_event_t *event) { struct x11_output *output; double x, y; struct weston_pointer_motion_event motion_event = { 0 }; xcb_motion_notify_event_t *motion_notify = (xcb_motion_notify_event_t *) event; struct timespec time; if (!b->has_xkb) update_xkb_state_from_core(b, motion_notify->state); output = x11_backend_find_output(b, motion_notify->event); if (!output) return; weston_output_transform_coordinate(&output->base, motion_notify->event_x, motion_notify->event_y, &x, &y); motion_event = (struct weston_pointer_motion_event) { .mask = WESTON_POINTER_MOTION_REL, .dx = x - b->prev_x, .dy = y - b->prev_y }; weston_compositor_get_time(&time); notify_motion(&b->core_seat, &time, &motion_event); notify_pointer_frame(&b->core_seat); b->prev_x = x; b->prev_y = y; } static void x11_backend_deliver_enter_event(struct x11_backend *b, xcb_generic_event_t *event) { struct x11_output *output; double x, y; xcb_enter_notify_event_t *enter_notify = (xcb_enter_notify_event_t *) event; if (enter_notify->state >= Button1Mask) return; if (!b->has_xkb) update_xkb_state_from_core(b, enter_notify->state); output = x11_backend_find_output(b, enter_notify->event); if (!output) return; weston_output_transform_coordinate(&output->base, enter_notify->event_x, enter_notify->event_y, &x, &y); notify_pointer_focus(&b->core_seat, &output->base, x, y); b->prev_x = x; b->prev_y = y; } static int x11_backend_next_event(struct x11_backend *b, xcb_generic_event_t **event, uint32_t mask) { if (mask & WL_EVENT_READABLE) *event = xcb_poll_for_event(b->conn); else *event = xcb_poll_for_queued_event(b->conn); return *event != NULL; } static int x11_backend_handle_event(int fd, uint32_t mask, void *data) { struct x11_backend *b = data; struct x11_output *output; xcb_generic_event_t *event, *prev; xcb_client_message_event_t *client_message; xcb_enter_notify_event_t *enter_notify; xcb_key_press_event_t *key_press, *key_release; xcb_keymap_notify_event_t *keymap_notify; xcb_focus_in_event_t *focus_in; xcb_expose_event_t *expose; xcb_configure_notify_event_t *configure; xcb_atom_t atom; xcb_window_t window; uint32_t *k; uint32_t i, set; uint8_t response_type; int count; struct timespec time; prev = NULL; count = 0; while (x11_backend_next_event(b, &event, mask)) { response_type = event->response_type & ~0x80; switch (prev ? prev->response_type & ~0x80 : 0x80) { case XCB_KEY_RELEASE: /* Suppress key repeat events; this is only used if we * don't have XCB XKB support. */ key_release = (xcb_key_press_event_t *) prev; key_press = (xcb_key_press_event_t *) event; if (response_type == XCB_KEY_PRESS && key_release->time == key_press->time && key_release->detail == key_press->detail) { /* Don't deliver the held key release * event or the new key press event. */ free(event); free(prev); prev = NULL; continue; } else { /* Deliver the held key release now * and fall through and handle the new * event below. */ update_xkb_state_from_core(b, key_release->state); weston_compositor_get_time(&time); notify_key(&b->core_seat, &time, key_release->detail - 8, WL_KEYBOARD_KEY_STATE_RELEASED, STATE_UPDATE_AUTOMATIC); free(prev); prev = NULL; break; } case XCB_FOCUS_IN: assert(response_type == XCB_KEYMAP_NOTIFY); keymap_notify = (xcb_keymap_notify_event_t *) event; b->keys.size = 0; for (i = 0; i < ARRAY_LENGTH(keymap_notify->keys) * 8; i++) { set = keymap_notify->keys[i >> 3] & (1 << (i & 7)); if (set) { k = wl_array_add(&b->keys, sizeof *k); *k = i; } } /* Unfortunately the state only comes with the enter * event, rather than with the focus event. I'm not * sure of the exact semantics around it and whether * we can ensure that we get both? */ notify_keyboard_focus_in(&b->core_seat, &b->keys, STATE_UPDATE_AUTOMATIC); free(prev); prev = NULL; break; default: /* No previous event held */ break; } switch (response_type) { case XCB_KEY_PRESS: key_press = (xcb_key_press_event_t *) event; if (!b->has_xkb) update_xkb_state_from_core(b, key_press->state); weston_compositor_get_time(&time); notify_key(&b->core_seat, &time, key_press->detail - 8, WL_KEYBOARD_KEY_STATE_PRESSED, b->has_xkb ? STATE_UPDATE_NONE : STATE_UPDATE_AUTOMATIC); break; case XCB_KEY_RELEASE: /* If we don't have XKB, we need to use the lame * autorepeat detection above. */ if (!b->has_xkb) { prev = event; break; } key_release = (xcb_key_press_event_t *) event; weston_compositor_get_time(&time); notify_key(&b->core_seat, &time, key_release->detail - 8, WL_KEYBOARD_KEY_STATE_RELEASED, STATE_UPDATE_NONE); break; case XCB_BUTTON_PRESS: case XCB_BUTTON_RELEASE: x11_backend_deliver_button_event(b, event); break; case XCB_MOTION_NOTIFY: x11_backend_deliver_motion_event(b, event); break; case XCB_EXPOSE: expose = (xcb_expose_event_t *) event; output = x11_backend_find_output(b, expose->window); if (!output) break; weston_output_damage(&output->base); weston_output_schedule_repaint(&output->base); break; case XCB_ENTER_NOTIFY: x11_backend_deliver_enter_event(b, event); break; case XCB_LEAVE_NOTIFY: enter_notify = (xcb_enter_notify_event_t *) event; if (enter_notify->state >= Button1Mask) break; if (!b->has_xkb) update_xkb_state_from_core(b, enter_notify->state); notify_pointer_focus(&b->core_seat, NULL, 0, 0); break; case XCB_CLIENT_MESSAGE: client_message = (xcb_client_message_event_t *) event; atom = client_message->data.data32[0]; window = client_message->window; if (atom == b->atom.wm_delete_window) { struct wl_event_loop *loop; struct window_delete_data *data = malloc(sizeof *data); /* if malloc failed we should at least try to * delete the window, even if it may result in * a crash. */ if (!data) { x11_backend_delete_window(b, window); break; } data->backend = b; data->window = window; loop = wl_display_get_event_loop(b->compositor->wl_display); wl_event_loop_add_idle(loop, delete_cb, data); } break; case XCB_CONFIGURE_NOTIFY: configure = (struct xcb_configure_notify_event_t *) event; struct x11_output *output = x11_backend_find_output(b, configure->window); if (!output || output->resize_pending) break; struct weston_mode mode = output->mode; if (mode.width == configure->width && mode.height == configure->height) break; output->window_resized = true; mode.width = configure->width; mode.height = configure->height; if (weston_output_mode_set_native(&output->base, &mode, output->scale) < 0) weston_log("Mode switch failed\n"); break; case XCB_FOCUS_IN: focus_in = (xcb_focus_in_event_t *) event; if (focus_in->mode == XCB_NOTIFY_MODE_WHILE_GRABBED) break; prev = event; break; case XCB_FOCUS_OUT: focus_in = (xcb_focus_in_event_t *) event; if (focus_in->mode == XCB_NOTIFY_MODE_WHILE_GRABBED || focus_in->mode == XCB_NOTIFY_MODE_UNGRAB) break; notify_keyboard_focus_out(&b->core_seat); break; default: break; } #ifdef HAVE_XCB_XKB if (b->has_xkb) { if (response_type == b->xkb_event_base) { xcb_xkb_state_notify_event_t *state = (xcb_xkb_state_notify_event_t *) event; if (state->xkbType == XCB_XKB_STATE_NOTIFY) update_xkb_state(b, state); } else if (response_type == XCB_PROPERTY_NOTIFY) { xcb_property_notify_event_t *prop_notify = (xcb_property_notify_event_t *) event; if (prop_notify->window == b->screen->root && prop_notify->atom == b->atom.xkb_names && prop_notify->state == XCB_PROPERTY_NEW_VALUE) update_xkb_keymap(b); } } #endif count++; if (prev != event) free (event); } switch (prev ? prev->response_type & ~0x80 : 0x80) { case XCB_KEY_RELEASE: key_release = (xcb_key_press_event_t *) prev; update_xkb_state_from_core(b, key_release->state); weston_compositor_get_time(&time); notify_key(&b->core_seat, &time, key_release->detail - 8, WL_KEYBOARD_KEY_STATE_RELEASED, STATE_UPDATE_AUTOMATIC); free(prev); prev = NULL; break; default: break; } return count; } #define F(field) offsetof(struct x11_backend, field) static void x11_backend_get_resources(struct x11_backend *b) { static const struct { const char *name; int offset; } atoms[] = { { "WM_PROTOCOLS", F(atom.wm_protocols) }, { "WM_NORMAL_HINTS", F(atom.wm_normal_hints) }, { "WM_SIZE_HINTS", F(atom.wm_size_hints) }, { "WM_DELETE_WINDOW", F(atom.wm_delete_window) }, { "WM_CLASS", F(atom.wm_class) }, { "_NET_WM_NAME", F(atom.net_wm_name) }, { "_NET_WM_ICON", F(atom.net_wm_icon) }, { "_NET_WM_STATE", F(atom.net_wm_state) }, { "_NET_WM_STATE_FULLSCREEN", F(atom.net_wm_state_fullscreen) }, { "_NET_SUPPORTING_WM_CHECK", F(atom.net_supporting_wm_check) }, { "_NET_SUPPORTED", F(atom.net_supported) }, { "STRING", F(atom.string) }, { "UTF8_STRING", F(atom.utf8_string) }, { "CARDINAL", F(atom.cardinal) }, { "_XKB_RULES_NAMES", F(atom.xkb_names) }, }; xcb_intern_atom_cookie_t cookies[ARRAY_LENGTH(atoms)]; xcb_intern_atom_reply_t *reply; xcb_pixmap_t pixmap; xcb_gc_t gc; unsigned int i; uint8_t data[] = { 0, 0, 0, 0 }; for (i = 0; i < ARRAY_LENGTH(atoms); i++) cookies[i] = xcb_intern_atom (b->conn, 0, strlen(atoms[i].name), atoms[i].name); for (i = 0; i < ARRAY_LENGTH(atoms); i++) { reply = xcb_intern_atom_reply (b->conn, cookies[i], NULL); *(xcb_atom_t *) ((char *) b + atoms[i].offset) = reply->atom; free(reply); } pixmap = xcb_generate_id(b->conn); gc = xcb_generate_id(b->conn); xcb_create_pixmap(b->conn, 1, pixmap, b->screen->root, 1, 1); xcb_create_gc(b->conn, gc, pixmap, 0, NULL); xcb_put_image(b->conn, XCB_IMAGE_FORMAT_XY_PIXMAP, pixmap, gc, 1, 1, 0, 0, 0, 32, sizeof data, data); b->null_cursor = xcb_generate_id(b->conn); xcb_create_cursor (b->conn, b->null_cursor, pixmap, pixmap, 0, 0, 0, 0, 0, 0, 1, 1); xcb_free_gc(b->conn, gc); xcb_free_pixmap(b->conn, pixmap); } static void x11_backend_get_wm_info(struct x11_backend *c) { xcb_get_property_cookie_t cookie; xcb_get_property_reply_t *reply; xcb_atom_t *atom; unsigned int i; cookie = xcb_get_property(c->conn, 0, c->screen->root, c->atom.net_supported, XCB_ATOM_ATOM, 0, 1024); reply = xcb_get_property_reply(c->conn, cookie, NULL); if (reply == NULL) return; atom = (xcb_atom_t *) xcb_get_property_value(reply); for (i = 0; i < reply->value_len; i++) { if (atom[i] == c->atom.net_wm_state_fullscreen) c->has_net_wm_state_fullscreen = 1; } free(reply); } static void x11_destroy(struct weston_compositor *ec) { struct x11_backend *backend = to_x11_backend(ec); struct weston_head *base, *next; wl_event_source_remove(backend->xcb_source); x11_input_destroy(backend); weston_compositor_shutdown(ec); /* destroys outputs, too */ wl_list_for_each_safe(base, next, &ec->head_list, compositor_link) x11_head_destroy(to_x11_head(base)); XCloseDisplay(backend->dpy); free(backend); } static int init_gl_renderer(struct x11_backend *b) { int ret; gl_renderer = weston_load_module("gl-renderer.so", "gl_renderer_interface"); if (!gl_renderer) return -1; ret = gl_renderer->display_create(b->compositor, EGL_PLATFORM_X11_KHR, (void *) b->dpy, EGL_WINDOW_BIT, x11_formats, ARRAY_LENGTH(x11_formats)); return ret; } static const struct weston_windowed_output_api api = { x11_output_set_size, x11_head_create, }; static struct x11_backend * x11_backend_create(struct weston_compositor *compositor, struct weston_x11_backend_config *config) { struct x11_backend *b; struct wl_event_loop *loop; int ret; b = zalloc(sizeof *b); if (b == NULL) return NULL; b->compositor = compositor; b->fullscreen = config->fullscreen; b->no_input = config->no_input; compositor->backend = &b->base; if (weston_compositor_set_presentation_clock_software(compositor) < 0) goto err_free; b->dpy = XOpenDisplay(NULL); if (b->dpy == NULL) goto err_free; b->conn = XGetXCBConnection(b->dpy); XSetEventQueueOwner(b->dpy, XCBOwnsEventQueue); if (xcb_connection_has_error(b->conn)) goto err_xdisplay; b->screen = x11_compositor_get_default_screen(b); wl_array_init(&b->keys); x11_backend_get_resources(b); x11_backend_get_wm_info(b); if (!b->has_net_wm_state_fullscreen && config->fullscreen) { weston_log("Can not fullscreen without window manager support" "(need _NET_WM_STATE_FULLSCREEN)\n"); config->fullscreen = 0; } b->use_pixman = config->use_pixman; if (b->use_pixman) { if (pixman_renderer_init(compositor) < 0) { weston_log("Failed to initialize pixman renderer for X11 backend\n"); goto err_xdisplay; } } else if (init_gl_renderer(b) < 0) { goto err_xdisplay; } weston_log("Using %s renderer\n", config->use_pixman ? "pixman" : "gl"); b->base.destroy = x11_destroy; b->base.create_output = x11_output_create; if (x11_input_create(b, config->no_input) < 0) { weston_log("Failed to create X11 input\n"); goto err_renderer; } loop = wl_display_get_event_loop(compositor->wl_display); b->xcb_source = wl_event_loop_add_fd(loop, xcb_get_file_descriptor(b->conn), WL_EVENT_READABLE, x11_backend_handle_event, b); wl_event_source_check(b->xcb_source); if (compositor->renderer->import_dmabuf) { if (linux_dmabuf_setup(compositor) < 0) weston_log("Error: initializing dmabuf " "support failed.\n"); } if (compositor->capabilities & WESTON_CAP_EXPLICIT_SYNC) { if (linux_explicit_synchronization_setup(compositor) < 0) weston_log("Error: initializing explicit " " synchronization support failed.\n"); } ret = weston_plugin_api_register(compositor, WESTON_WINDOWED_OUTPUT_API_NAME, &api, sizeof(api)); if (ret < 0) { weston_log("Failed to register output API.\n"); goto err_x11_input; } return b; err_x11_input: x11_input_destroy(b); err_renderer: compositor->renderer->destroy(compositor); err_xdisplay: XCloseDisplay(b->dpy); err_free: free(b); return NULL; } static void config_init_to_defaults(struct weston_x11_backend_config *config) { } WL_EXPORT int weston_backend_init(struct weston_compositor *compositor, struct weston_backend_config *config_base) { struct x11_backend *b; struct weston_x11_backend_config config = {{ 0, }}; if (config_base == NULL || config_base->struct_version != WESTON_X11_BACKEND_CONFIG_VERSION || config_base->struct_size > sizeof(struct weston_x11_backend_config)) { weston_log("X11 backend config structure is invalid\n"); return -1; } config_init_to_defaults(&config); memcpy(&config, config_base, config_base->struct_size); b = x11_backend_create(compositor, &config); if (b == NULL) return -1; return 0; }