diff options
Diffstat (limited to 'src/compositor-x11.c')
| -rw-r--r-- | src/compositor-x11.c | 1621 |
1 files changed, 1621 insertions, 0 deletions
diff --git a/src/compositor-x11.c b/src/compositor-x11.c new file mode 100644 index 00000000..e6022f77 --- /dev/null +++ b/src/compositor-x11.c @@ -0,0 +1,1621 @@ +/* + * Copyright © 2008-2011 Kristian Høgsberg + * Copyright © 2010-2011 Intel Corporation + * Copyright © 2013 Vasily Khoruzhick <anarsoul@gmail.com> + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of the copyright holders not be used in + * advertising or publicity pertaining to distribution of the software + * without specific, written prior permission. The copyright holders make + * no representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF + * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include "config.h" + +#include <assert.h> +#include <stddef.h> +#include <stdlib.h> +#include <string.h> +#include <fcntl.h> +#include <unistd.h> +#include <errno.h> +#include <sys/time.h> +#include <sys/shm.h> +#include <linux/input.h> + +#include <xcb/xcb.h> +#include <xcb/shm.h> +#ifdef HAVE_XCB_XKB +#include <xcb/xkb.h> +#endif + +#include <X11/Xlib.h> +#include <X11/Xlib-xcb.h> + +#include <xkbcommon/xkbcommon.h> + +#include "compositor.h" +#include "gl-renderer.h" +#include "pixman-renderer.h" +#include "../shared/config-parser.h" +#include "../shared/image-loader.h" + +#define DEFAULT_AXIS_STEP_DISTANCE wl_fixed_from_int(10) + +static int option_width; +static int option_height; +static int option_count; + +struct x11_compositor { + struct weston_compositor base; + + 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 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; + wl_fixed_t prev_x; + wl_fixed_t 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_output { + struct weston_output base; + + xcb_window_t window; + struct weston_mode mode; + 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; +}; + +static struct xkb_keymap * +x11_compositor_get_keymap(struct x11_compositor *c) +{ + 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(c->conn, 0, c->screen->root, + c->atom.xkb_names, c->atom.string, 0, 1024); + reply = xcb_get_property_reply(c->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_map_new_from_names(c->base.xkb_context, &names, 0); + + free(reply); + return ret; +} + +static uint32_t +get_xkb_mod_mask(struct x11_compositor *c, uint32_t in) +{ + struct weston_xkb_info *info = c->core_seat.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_compositor_setup_xkb(struct x11_compositor *c) +{ +#ifndef HAVE_XCB_XKB + weston_log("XCB-XKB not available during build\n"); + c->has_xkb = 0; + c->xkb_event_base = 0; + return; +#else + 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; + + c->has_xkb = 0; + c->xkb_event_base = 0; + + ext = xcb_get_extension_data(c->conn, &xcb_xkb_id); + if (!ext) { + weston_log("XKB extension not available on host X11 server\n"); + return; + } + c->xkb_event_base = ext->first_event; + + select = xcb_xkb_select_events_checked(c->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(c->conn, select); + if (error) { + weston_log("error: failed to select for XKB state events\n"); + free(error); + return; + } + + use_ext = xcb_xkb_use_extension(c->conn, + XCB_XKB_MAJOR_VERSION, + XCB_XKB_MINOR_VERSION); + use_ext_reply = xcb_xkb_use_extension_reply(c->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(c->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(c->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(c->conn, XCB_XKB_ID_USE_CORE_KBD); + state_reply = xcb_xkb_get_state_reply(c->conn, state, NULL); + if (!state_reply) { + weston_log("failed to get initial XKB state\n"); + return; + } + + xkb_state_update_mask(c->core_seat.xkb_state.state, + get_xkb_mod_mask(c, state_reply->baseMods), + get_xkb_mod_mask(c, state_reply->latchedMods), + get_xkb_mod_mask(c, state_reply->lockedMods), + 0, + 0, + state_reply->group); + + free(state_reply); + + c->has_xkb = 1; +#endif +} + +static int +x11_input_create(struct x11_compositor *c, int no_input) +{ + struct xkb_keymap *keymap; + + weston_seat_init(&c->core_seat, &c->base, "default"); + + if (no_input) + return 0; + + weston_seat_init_pointer(&c->core_seat); + + keymap = x11_compositor_get_keymap(c); + if (weston_seat_init_keyboard(&c->core_seat, keymap) < 0) + return -1; + if (keymap) + xkb_map_unref(keymap); + + x11_compositor_setup_xkb(c); + + return 0; +} + +static void +x11_input_destroy(struct x11_compositor *compositor) +{ + weston_seat_release(&compositor->core_seat); +} + +static void +x11_output_start_repaint_loop(struct weston_output *output) +{ + uint32_t msec; + struct timeval tv; + + gettimeofday(&tv, NULL); + msec = tv.tv_sec * 1000 + tv.tv_usec / 1000; + weston_output_finish_frame(output, msec); +} + +static int +x11_output_repaint_gl(struct weston_output *output_base, + pixman_region32_t *damage) +{ + struct x11_output *output = (struct 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 = (struct x11_output *)output_base; + struct weston_compositor *ec = output->base.compositor; + struct x11_compositor *c = (struct x11_compositor *)ec; + pixman_box32_t *rects; + xcb_rectangle_t *output_rects; + pixman_box32_t rect, transformed_rect; + xcb_void_cookie_t cookie; + int width, height, nrects, i; + xcb_generic_error_t *err; + + rects = pixman_region32_rectangles(region, &nrects); + output_rects = calloc(nrects, sizeof(xcb_rectangle_t)); + + if (output_rects == NULL) + return; + + width = output_base->width; + height = output_base->height; + + for (i = 0; i < nrects; i++) { + rect = rects[i]; + rect.x1 -= output_base->x; + rect.y1 -= output_base->y; + rect.x2 -= output_base->x; + rect.y2 -= output_base->y; + + switch (output_base->transform) { + default: + case WL_OUTPUT_TRANSFORM_NORMAL: + transformed_rect.x1 = rect.x1; + transformed_rect.y1 = rect.y1; + transformed_rect.x2 = rect.x2; + transformed_rect.y2 = rect.y2; + break; + case WL_OUTPUT_TRANSFORM_90: + transformed_rect.x1 = height - rect.y2; + transformed_rect.y1 = rect.x1; + transformed_rect.x2 = height - rect.y1; + transformed_rect.y2 = rect.x2; + break; + case WL_OUTPUT_TRANSFORM_180: + transformed_rect.x1 = width - rect.x2; + transformed_rect.y1 = height - rect.y2; + transformed_rect.x2 = width - rect.x1; + transformed_rect.y2 = height - rect.y1; + break; + case WL_OUTPUT_TRANSFORM_270: + transformed_rect.x1 = rect.y1; + transformed_rect.y1 = width - rect.x2; + transformed_rect.x2 = rect.y2; + transformed_rect.y2 = width - rect.x1; + break; + case WL_OUTPUT_TRANSFORM_FLIPPED: + transformed_rect.x1 = width - rect.x2; + transformed_rect.y1 = rect.y1; + transformed_rect.x2 = width - rect.x1; + transformed_rect.y2 = rect.y2; + break; + case WL_OUTPUT_TRANSFORM_FLIPPED_90: + transformed_rect.x1 = height - rect.y2; + transformed_rect.y1 = width - rect.x2; + transformed_rect.x2 = height - rect.y1; + transformed_rect.y2 = width - rect.x1; + break; + case WL_OUTPUT_TRANSFORM_FLIPPED_180: + transformed_rect.x1 = rect.x1; + transformed_rect.y1 = height - rect.y2; + transformed_rect.x2 = rect.x2; + transformed_rect.y2 = height - rect.y1; + break; + case WL_OUTPUT_TRANSFORM_FLIPPED_270: + transformed_rect.x1 = rect.y1; + transformed_rect.y1 = rect.x1; + transformed_rect.x2 = rect.y2; + transformed_rect.y2 = rect.x2; + break; + } + + transformed_rect.x1 *= output_base->current_scale; + transformed_rect.y1 *= output_base->current_scale; + transformed_rect.x2 *= output_base->current_scale; + transformed_rect.y2 *= output_base->current_scale; + + output_rects[i].x = transformed_rect.x1; + output_rects[i].y = transformed_rect.y1; + output_rects[i].width = transformed_rect.x2 - transformed_rect.x1; + output_rects[i].height = transformed_rect.y2 - transformed_rect.y1; + } + + cookie = xcb_set_clip_rectangles_checked(c->conn, XCB_CLIP_ORDERING_UNSORTED, + output->gc, + 0, 0, nrects, + output_rects); + err = xcb_request_check(c->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) +{ + struct x11_output *output = (struct x11_output *)output_base; + struct weston_compositor *ec = output->base.compositor; + struct x11_compositor *c = (struct x11_compositor *)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(c->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(c->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; + + x11_output_start_repaint_loop(&output->base); + + return 1; +} + +static void +x11_output_deinit_shm(struct x11_compositor *c, struct x11_output *output) +{ + xcb_void_cookie_t cookie; + xcb_generic_error_t *err; + xcb_free_gc(c->conn, output->gc); + + pixman_image_unref(output->hw_surface); + output->hw_surface = NULL; + cookie = xcb_shm_detach_checked(c->conn, output->segment); + err = xcb_request_check(c->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_destroy(struct weston_output *output_base) +{ + struct x11_output *output = (struct x11_output *)output_base; + struct x11_compositor *compositor = + (struct x11_compositor *)output->base.compositor; + + wl_list_remove(&output->base.link); + wl_event_source_remove(output->finish_frame_timer); + + if (compositor->use_pixman) { + pixman_renderer_output_destroy(output_base); + x11_output_deinit_shm(compositor, output); + } else + gl_renderer_output_destroy(output_base); + + xcb_destroy_window(compositor->conn, output->window); + + weston_output_destroy(&output->base); + + free(output); +} + +static void +x11_output_set_wm_protocols(struct x11_compositor *c, + struct x11_output *output) +{ + xcb_atom_t list[1]; + + list[0] = c->atom.wm_delete_window; + xcb_change_property (c->conn, + XCB_PROP_MODE_REPLACE, + output->window, + c->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_compositor *c, + 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(c->conn, XCB_PROP_MODE_REPLACE, output->window, + c->atom.net_wm_icon, c->atom.cardinal, 32, + width * height + 2, icon); + free(icon); + pixman_image_unref(image); +} + +static void +x11_output_wait_for_map(struct x11_compositor *c, 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(c->conn); + + while (!mapped || !configured) { + event = xcb_wait_for_event(c->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->scale; + output->mode.height = configure_notify->height / output->scale; + 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_compositor *c, struct x11_output *output, + int width, int height) +{ + xcb_screen_iterator_t iter; + xcb_visualtype_t *visual_type; + 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(c->conn, &xcb_shm_id); + if (ext == NULL || !ext->present) { + /* SHM is missing */ + weston_log("SHM extension is not available\n"); + errno = ENOENT; + return -1; + } + + iter = xcb_setup_roots_iterator(xcb_get_setup(c->conn)); + visual_type = find_visual_by_id(iter.data, iter.data->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(iter.data, iter.data->root_visual); + weston_log("Visual depth is %d\n", output->depth); + + for (fmt = xcb_setup_pixmap_formats_iterator(xcb_get_setup(c->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 { + 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(c->conn); + cookie = xcb_shm_attach_checked(c->conn, output->segment, output->shm_id, 1); + err = xcb_request_check(c->conn, cookie); + if (err) { + weston_log("x11shm: xcb_shm_attach error %d\n", err->error_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(c->conn); + xcb_create_gc(c->conn, output->gc, output->window, 0, NULL); + + return 0; +} + +static struct x11_output * +x11_compositor_create_output(struct x11_compositor *c, int x, int y, + int width, int height, int fullscreen, + int no_input, char *configured_name, + uint32_t transform, int32_t scale) +{ + static const char name[] = "Weston Compositor"; + static const char class[] = "weston-1\0Weston Compositor"; + char title[32]; + struct x11_output *output; + xcb_screen_iterator_t iter; + struct wm_normal_hints normal_hints; + struct wl_event_loop *loop; + int output_width, output_height; + 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 + }; + + output_width = width * scale; + output_height = height * scale; + + if (configured_name) + sprintf(title, "%s - %s", name, configured_name); + else + strcpy(title, name); + + if (!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; + + output = zalloc(sizeof *output); + if (output == NULL) + return NULL; + + 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->scale = scale; + wl_list_init(&output->base.mode_list); + wl_list_insert(&output->base.mode_list, &output->mode.link); + + values[1] = c->null_cursor; + output->window = xcb_generate_id(c->conn); + iter = xcb_setup_roots_iterator(xcb_get_setup(c->conn)); + xcb_create_window(c->conn, + XCB_COPY_FROM_PARENT, + output->window, + iter.data->root, + 0, 0, + output_width, output_height, + 0, + XCB_WINDOW_CLASS_INPUT_OUTPUT, + iter.data->root_visual, + mask, values); + + if (fullscreen) { + atom_list[0] = c->atom.net_wm_state_fullscreen; + xcb_change_property(c->conn, XCB_PROP_MODE_REPLACE, + output->window, + c->atom.net_wm_state, + XCB_ATOM_ATOM, 32, + ARRAY_LENGTH(atom_list), atom_list); + } else { + /* Don't resize me. */ + memset(&normal_hints, 0, sizeof normal_hints); + normal_hints.flags = + WM_NORMAL_HINTS_MAX_SIZE | WM_NORMAL_HINTS_MIN_SIZE; + normal_hints.min_width = output_width; + normal_hints.min_height = output_height; + normal_hints.max_width = output_width; + normal_hints.max_height = output_height; + xcb_change_property(c->conn, XCB_PROP_MODE_REPLACE, output->window, + c->atom.wm_normal_hints, + c->atom.wm_size_hints, 32, + sizeof normal_hints / 4, + (uint8_t *) &normal_hints); + } + + /* Set window name. Don't bother with non-EWMH WMs. */ + xcb_change_property(c->conn, XCB_PROP_MODE_REPLACE, output->window, + c->atom.net_wm_name, c->atom.utf8_string, 8, + strlen(title), title); + xcb_change_property(c->conn, XCB_PROP_MODE_REPLACE, output->window, + c->atom.wm_class, c->atom.string, 8, + sizeof class, class); + + x11_output_set_icon(c, output, DATADIR "/weston/wayland.png"); + + x11_output_set_wm_protocols(c, output); + + xcb_map_window(c->conn, output->window); + + if (fullscreen) + x11_output_wait_for_map(c, output); + + output->base.start_repaint_loop = x11_output_start_repaint_loop; + if (c->use_pixman) + output->base.repaint = x11_output_repaint_shm; + else + output->base.repaint = x11_output_repaint_gl; + output->base.destroy = x11_output_destroy; + output->base.assign_planes = NULL; + output->base.set_backlight = NULL; + output->base.set_dpms = NULL; + output->base.switch_mode = NULL; + output->base.current_mode = &output->mode; + output->base.make = "xwayland"; + output->base.model = "none"; + weston_output_init(&output->base, &c->base, + x, y, width, height, transform, scale); + + if (c->use_pixman) { + if (x11_output_init_shm(c, output, + output->mode.width, + output->mode.height) < 0) + return NULL; + if (pixman_renderer_output_create(&output->base) < 0) { + x11_output_deinit_shm(c, output); + return NULL; + } + } else { + if (gl_renderer_output_create(&output->base, (EGLNativeWindowType)output->window) < 0) + return NULL; + } + + loop = wl_display_get_event_loop(c->base.wl_display); + output->finish_frame_timer = + wl_event_loop_add_timer(loop, finish_frame_handler, output); + + wl_list_insert(c->base.output_list.prev, &output->base.link); + + weston_log("x11 output %dx%d, window id %d\n", + width, height, output->window); + + return output; +} + +static struct x11_output * +x11_compositor_find_output(struct x11_compositor *c, xcb_window_t window) +{ + struct x11_output *output; + + wl_list_for_each(output, &c->base.output_list, base.link) { + if (output->window == window) + return output; + } + + assert(0); +} + +#ifdef HAVE_XCB_XKB +static void +update_xkb_state(struct x11_compositor *c, xcb_xkb_state_notify_event_t *state) +{ + xkb_state_update_mask(c->core_seat.xkb_state.state, + get_xkb_mod_mask(c, state->baseMods), + get_xkb_mod_mask(c, state->latchedMods), + get_xkb_mod_mask(c, state->lockedMods), + 0, + 0, + state->group); + + notify_modifiers(&c->core_seat, + wl_display_next_serial(c->base.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_compositor *c, uint16_t x11_mask) +{ + uint32_t mask = get_xkb_mod_mask(c, x11_mask); + struct weston_keyboard *keyboard = c->core_seat.keyboard; + + xkb_state_update_mask(c->core_seat.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(&c->core_seat, + wl_display_next_serial(c->base.wl_display)); +} + +static void +x11_compositor_deliver_button_event(struct x11_compositor *c, + xcb_generic_event_t *event, int state) +{ + xcb_button_press_event_t *button_event = + (xcb_button_press_event_t *) event; + uint32_t button; + struct x11_output *output; + + output = x11_compositor_find_output(c, button_event->event); + + if (state) + xcb_grab_pointer(c->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(c->conn, button_event->time); + + if (!c->has_xkb) + update_xkb_state_from_core(c, button_event->state); + + switch (button_event->detail) { + default: + button = button_event->detail + BTN_LEFT - 1; + 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 (state) + notify_axis(&c->core_seat, + weston_compositor_get_time(), + WL_POINTER_AXIS_VERTICAL_SCROLL, + -DEFAULT_AXIS_STEP_DISTANCE); + return; + case 5: + if (state) + notify_axis(&c->core_seat, + weston_compositor_get_time(), + WL_POINTER_AXIS_VERTICAL_SCROLL, + DEFAULT_AXIS_STEP_DISTANCE); + return; + case 6: + if (state) + notify_axis(&c->core_seat, + weston_compositor_get_time(), + WL_POINTER_AXIS_HORIZONTAL_SCROLL, + -DEFAULT_AXIS_STEP_DISTANCE); + return; + case 7: + if (state) + notify_axis(&c->core_seat, + weston_compositor_get_time(), + WL_POINTER_AXIS_HORIZONTAL_SCROLL, + DEFAULT_AXIS_STEP_DISTANCE); + return; + } + + notify_button(&c->core_seat, + weston_compositor_get_time(), button, + state ? WL_POINTER_BUTTON_STATE_PRESSED : + WL_POINTER_BUTTON_STATE_RELEASED); +} + +static void +x11_compositor_deliver_motion_event(struct x11_compositor *c, + xcb_generic_event_t *event) +{ + struct x11_output *output; + wl_fixed_t x, y; + xcb_motion_notify_event_t *motion_notify = + (xcb_motion_notify_event_t *) event; + + if (!c->has_xkb) + update_xkb_state_from_core(c, motion_notify->state); + output = x11_compositor_find_output(c, motion_notify->event); + weston_output_transform_coordinate(&output->base, + motion_notify->event_x, + motion_notify->event_y, &x, &y); + + notify_motion(&c->core_seat, weston_compositor_get_time(), + x - c->prev_x, y - c->prev_y); + + c->prev_x = x; + c->prev_y = y; +} + +static void +x11_compositor_deliver_enter_event(struct x11_compositor *c, + xcb_generic_event_t *event) +{ + struct x11_output *output; + wl_fixed_t x, y; + + xcb_enter_notify_event_t *enter_notify = + (xcb_enter_notify_event_t *) event; + if (enter_notify->state >= Button1Mask) + return; + if (!c->has_xkb) + update_xkb_state_from_core(c, enter_notify->state); + output = x11_compositor_find_output(c, enter_notify->event); + weston_output_transform_coordinate(&output->base, + enter_notify->event_x, + enter_notify->event_y, &x, &y); + + notify_pointer_focus(&c->core_seat, &output->base, x, y); + + c->prev_x = x; + c->prev_y = y; +} + +static int +x11_compositor_next_event(struct x11_compositor *c, + xcb_generic_event_t **event, uint32_t mask) +{ + if (mask & WL_EVENT_READABLE) { + *event = xcb_poll_for_event(c->conn); + } else { +#ifdef HAVE_XCB_POLL_FOR_QUEUED_EVENT + *event = xcb_poll_for_queued_event(c->conn); +#else + *event = xcb_poll_for_event(c->conn); +#endif + } + + return *event != NULL; +} + +static int +x11_compositor_handle_event(int fd, uint32_t mask, void *data) +{ + struct x11_compositor *c = 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_atom_t atom; + uint32_t *k; + uint32_t i, set; + uint8_t response_type; + int count; + + prev = NULL; + count = 0; + while (x11_compositor_next_event(c, &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(c, key_release->state); + notify_key(&c->core_seat, + weston_compositor_get_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; + c->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(&c->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(&c->core_seat, &c->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 (!c->has_xkb) + update_xkb_state_from_core(c, key_press->state); + notify_key(&c->core_seat, + weston_compositor_get_time(), + key_press->detail - 8, + WL_KEYBOARD_KEY_STATE_PRESSED, + c->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 (!c->has_xkb) { + prev = event; + break; + } + key_release = (xcb_key_press_event_t *) event; + notify_key(&c->core_seat, + weston_compositor_get_time(), + key_release->detail - 8, + WL_KEYBOARD_KEY_STATE_RELEASED, + STATE_UPDATE_NONE); + break; + case XCB_BUTTON_PRESS: + x11_compositor_deliver_button_event(c, event, 1); + break; + case XCB_BUTTON_RELEASE: + x11_compositor_deliver_button_event(c, event, 0); + break; + case XCB_MOTION_NOTIFY: + x11_compositor_deliver_motion_event(c, event); + break; + + case XCB_EXPOSE: + expose = (xcb_expose_event_t *) event; + output = x11_compositor_find_output(c, expose->window); + weston_output_schedule_repaint(&output->base); + break; + + case XCB_ENTER_NOTIFY: + x11_compositor_deliver_enter_event(c, event); + break; + + case XCB_LEAVE_NOTIFY: + enter_notify = (xcb_enter_notify_event_t *) event; + if (enter_notify->state >= Button1Mask) + break; + if (!c->has_xkb) + update_xkb_state_from_core(c, enter_notify->state); + notify_pointer_focus(&c->core_seat, NULL, 0, 0); + break; + + case XCB_CLIENT_MESSAGE: + client_message = (xcb_client_message_event_t *) event; + atom = client_message->data.data32[0]; + if (atom == c->atom.wm_delete_window) + wl_display_terminate(c->base.wl_display); + 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(&c->core_seat); + break; + + default: + break; + } + +#ifdef HAVE_XCB_XKB + if (c->has_xkb && + response_type == c->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(c, state); + } +#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(c, key_release->state); + notify_key(&c->core_seat, + weston_compositor_get_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_compositor, field) + +static void +x11_compositor_get_resources(struct x11_compositor *c) +{ + 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 (c->conn, 0, + strlen(atoms[i].name), + atoms[i].name); + + for (i = 0; i < ARRAY_LENGTH(atoms); i++) { + reply = xcb_intern_atom_reply (c->conn, cookies[i], NULL); + *(xcb_atom_t *) ((char *) c + atoms[i].offset) = reply->atom; + free(reply); + } + + pixmap = xcb_generate_id(c->conn); + gc = xcb_generate_id(c->conn); + xcb_create_pixmap(c->conn, 1, pixmap, c->screen->root, 1, 1); + xcb_create_gc(c->conn, gc, pixmap, 0, NULL); + xcb_put_image(c->conn, XCB_IMAGE_FORMAT_XY_PIXMAP, + pixmap, gc, 1, 1, 0, 0, 0, 32, sizeof data, data); + c->null_cursor = xcb_generate_id(c->conn); + xcb_create_cursor (c->conn, c->null_cursor, + pixmap, pixmap, 0, 0, 0, 0, 0, 0, 1, 1); + xcb_free_gc(c->conn, gc); + xcb_free_pixmap(c->conn, pixmap); +} + +static void +x11_compositor_get_wm_info(struct x11_compositor *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; + } +} + +static void +x11_restore(struct weston_compositor *ec) +{ +} + +static void +x11_destroy(struct weston_compositor *ec) +{ + struct x11_compositor *compositor = (struct x11_compositor *)ec; + + wl_event_source_remove(compositor->xcb_source); + x11_input_destroy(compositor); + + weston_compositor_shutdown(ec); /* destroys outputs, too */ + + ec->renderer->destroy(ec); + + XCloseDisplay(compositor->dpy); + free(ec); +} + +static uint32_t +parse_transform(const char *transform, const char *output_name) +{ + static const struct { const char *name; uint32_t token; } names[] = { + { "normal", WL_OUTPUT_TRANSFORM_NORMAL }, + { "90", WL_OUTPUT_TRANSFORM_90 }, + { "180", WL_OUTPUT_TRANSFORM_180 }, + { "270", WL_OUTPUT_TRANSFORM_270 }, + { "flipped", WL_OUTPUT_TRANSFORM_FLIPPED }, + { "flipped-90", WL_OUTPUT_TRANSFORM_FLIPPED_90 }, + { "flipped-180", WL_OUTPUT_TRANSFORM_FLIPPED_180 }, + { "flipped-270", WL_OUTPUT_TRANSFORM_FLIPPED_270 }, + }; + unsigned int i; + + for (i = 0; i < ARRAY_LENGTH(names); i++) + if (strcmp(names[i].name, transform) == 0) + return names[i].token; + + weston_log("Invalid transform \"%s\" for output %s\n", + transform, output_name); + + return WL_OUTPUT_TRANSFORM_NORMAL; +} + +static struct weston_compositor * +x11_compositor_create(struct wl_display *display, + int fullscreen, + int no_input, + int use_pixman, + int *argc, char *argv[], + struct weston_config *config) +{ + struct x11_compositor *c; + struct x11_output *output; + struct weston_config_section *section; + xcb_screen_iterator_t s; + int i, x = 0, output_count = 0; + int width, height, count, scale; + const char *section_name; + char *name, *t, *mode; + uint32_t transform; + + weston_log("initializing x11 backend\n"); + + c = zalloc(sizeof *c); + if (c == NULL) + return NULL; + + if (weston_compositor_init(&c->base, display, argc, argv, config) < 0) + goto err_free; + + c->dpy = XOpenDisplay(NULL); + if (c->dpy == NULL) + goto err_free; + + c->conn = XGetXCBConnection(c->dpy); + XSetEventQueueOwner(c->dpy, XCBOwnsEventQueue); + + if (xcb_connection_has_error(c->conn)) + goto err_xdisplay; + + s = xcb_setup_roots_iterator(xcb_get_setup(c->conn)); + c->screen = s.data; + wl_array_init(&c->keys); + + x11_compositor_get_resources(c); + x11_compositor_get_wm_info(c); + + if (!c->has_net_wm_state_fullscreen && fullscreen) { + weston_log("Can not fullscreen without window manager support" + "(need _NET_WM_STATE_FULLSCREEN)\n"); + fullscreen = 0; + } + + c->base.wl_display = display; + c->use_pixman = use_pixman; + if (c->use_pixman) { + if (pixman_renderer_init(&c->base) < 0) + goto err_xdisplay; + } + else { + if (gl_renderer_create(&c->base, (EGLNativeDisplayType)c->dpy, gl_renderer_opaque_attribs, + NULL) < 0) + goto err_xdisplay; + } + weston_log("Using %s renderer\n", use_pixman ? "pixman" : "gl"); + + c->base.destroy = x11_destroy; + c->base.restore = x11_restore; + + if (x11_input_create(c, no_input) < 0) + goto err_renderer; + + width = option_width ? option_width : 1024; + height = option_height ? option_height : 640; + count = option_count ? option_count : 1; + + section = NULL; + while (weston_config_next_section(c->base.config, + §ion, §ion_name)) { + if (strcmp(section_name, "output") != 0) + continue; + weston_config_section_get_string(section, "name", &name, NULL); + if (name == NULL || name[0] != 'X') { + free(name); + continue; + } + + weston_config_section_get_string(section, + "mode", &mode, "1024x600"); + if (sscanf(mode, "%dx%d", &width, &height) != 2) { + weston_log("Invalid mode \"%s\" for output %s\n", + mode, name); + width = 1024; + height = 600; + } + free(mode); + + if (option_width) + width = option_width; + if (option_height) + height = option_height; + + weston_config_section_get_int(section, "scale", &scale, 1); + weston_config_section_get_string(section, + "transform", &t, "normal"); + transform = parse_transform(t, name); + free(t); + + output = x11_compositor_create_output(c, x, 0, + width, height, + fullscreen, no_input, + name, transform, scale); + free(name); + if (output == NULL) + goto err_x11_input; + + x = pixman_region32_extents(&output->base.region)->x2; + + output_count++; + if (option_count && output_count >= option_count) + break; + } + + for (i = output_count; i < count; i++) { + output = x11_compositor_create_output(c, x, 0, width, height, + fullscreen, no_input, NULL, + WL_OUTPUT_TRANSFORM_NORMAL, 1); + if (output == NULL) + goto err_x11_input; + x = pixman_region32_extents(&output->base.region)->x2; + } + + c->xcb_source = + wl_event_loop_add_fd(c->base.input_loop, + xcb_get_file_descriptor(c->conn), + WL_EVENT_READABLE, + x11_compositor_handle_event, c); + wl_event_source_check(c->xcb_source); + + return &c->base; + +err_x11_input: + x11_input_destroy(c); +err_renderer: + c->base.renderer->destroy(&c->base); +err_xdisplay: + XCloseDisplay(c->dpy); +err_free: + free(c); + return NULL; +} + +WL_EXPORT struct weston_compositor * +backend_init(struct wl_display *display, int *argc, char *argv[], + struct weston_config *config) +{ + int fullscreen = 0; + int no_input = 0; + int use_pixman = 0; + + const struct weston_option x11_options[] = { + { WESTON_OPTION_INTEGER, "width", 0, &option_width }, + { WESTON_OPTION_INTEGER, "height", 0, &option_height }, + { WESTON_OPTION_BOOLEAN, "fullscreen", 'f', &fullscreen }, + { WESTON_OPTION_INTEGER, "output-count", 0, &option_count }, + { WESTON_OPTION_BOOLEAN, "no-input", 0, &no_input }, + { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &use_pixman }, + }; + + parse_options(x11_options, ARRAY_LENGTH(x11_options), argc, argv); + + return x11_compositor_create(display, + fullscreen, + no_input, + use_pixman, + argc, argv, config); +} |