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Xwlb.c
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/*
* Copyright © 2008-2011 Kristian Høgsberg
* Copyright © 2010-2011 Intel Corporation
* Copyright © 2013 Vasily Khoruzhick <[email protected]>
* Copyright © 2013 Jason Ekstrand
*
* 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 <assert.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <linux/input.h>
#include <xcb/xcb.h>
#include <xcb/shm.h>
#include <xcb/xkb.h>
#include <X11/Xlib.h>
#include <X11/Xlib-xcb.h>
#include <EGL/egl.h>
#include <xkbcommon/xkbcommon.h>
#include <pixman.h>
#include "config.h"
#include "../libwlb/libwlb.h"
#define DEFAULT_AXIS_STEP_DISTANCE wl_fixed_from_int(10)
struct x11_compositor {
struct wl_display *display;
struct wlb_compositor *compositor;
Display *dpy;
xcb_connection_t *conn;
xcb_screen_t *screen;
struct wl_array keys;
struct wl_event_source *xcb_source;
unsigned int has_xkb;
uint8_t xkb_event_base;
struct {
struct xkb_context *context;
struct xkb_keymap *keymap;
struct xkb_state *state;
uint32_t mods_depressed;
uint32_t mods_latched;
uint32_t mods_locked;
uint32_t mod_shift;
uint32_t mod_caps;
uint32_t mod_ctrl;
uint32_t mod_alt;
uint32_t mod_mod2;
uint32_t mod_mod3;
uint32_t mod_super;
uint32_t mod_mod5;
} xkb;
struct wl_list output_list;
struct wlb_seat *seat;
struct wlb_pointer *pointer;
struct wlb_keyboard *keyboard;
struct wlb_pixman_renderer *pixman_renderer;
struct wlb_gles2_renderer *gles2_renderer;
struct {
xkb_mod_index_t shift_mod;
xkb_mod_index_t caps_mod;
xkb_mod_index_t ctrl_mod;
xkb_mod_index_t alt_mod;
xkb_mod_index_t mod2_mod;
xkb_mod_index_t mod3_mod;
xkb_mod_index_t super_mod;
xkb_mod_index_t mod5_mod;
xkb_led_index_t num_led;
xkb_led_index_t caps_led;
xkb_led_index_t scroll_led;
} xkb_info;
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 string;
xcb_atom_t utf8_string;
xcb_atom_t cardinal;
xcb_atom_t xkb_names;
} atom;
};
struct x11_output {
struct x11_compositor *compositor;
struct wl_list compositor_link;
struct wlb_output *output;
int32_t window_width, window_height;
xcb_window_t window;
struct wl_event_source *repaint_timer;
xcb_gc_t gc;
xcb_shm_seg_t segment;
pixman_image_t *hw_surface;
int shm_id;
void *buf;
uint8_t depth;
};
#define ARRAY_LENGTH(a) (sizeof (a) / sizeof (a)[0])
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->xkb.context, &names, 0);
free(reply);
return ret;
}
static void
x11_compositor_get_xkb_info(struct x11_compositor *c)
{
c->xkb.mod_shift = xkb_map_mod_get_index(c->xkb.keymap,
XKB_MOD_NAME_SHIFT);
c->xkb.mod_caps = xkb_map_mod_get_index(c->xkb.keymap,
XKB_MOD_NAME_CAPS);
c->xkb.mod_ctrl = xkb_map_mod_get_index(c->xkb.keymap,
XKB_MOD_NAME_CTRL);
c->xkb.mod_alt = xkb_map_mod_get_index(c->xkb.keymap,
XKB_MOD_NAME_ALT);
c->xkb.mod_mod2 = xkb_map_mod_get_index(c->xkb.keymap, "Mod2");
c->xkb.mod_mod3 = xkb_map_mod_get_index(c->xkb.keymap, "Mod3");
c->xkb.mod_super = xkb_map_mod_get_index(c->xkb.keymap,
XKB_MOD_NAME_LOGO);
c->xkb.mod_mod5 = xkb_map_mod_get_index(c->xkb.keymap, "Mod5");
}
static uint32_t
get_xkb_mod_mask(struct x11_compositor *c, uint32_t in)
{
uint32_t ret = 0;
if ((in & ShiftMask) && c->xkb.mod_shift != XKB_MOD_INVALID)
ret |= (1 << c->xkb.mod_shift);
if ((in & LockMask) && c->xkb.mod_caps != XKB_MOD_INVALID)
ret |= (1 << c->xkb.mod_caps);
if ((in & ControlMask) && c->xkb.mod_ctrl != XKB_MOD_INVALID)
ret |= (1 << c->xkb.mod_ctrl);
if ((in & Mod1Mask) && c->xkb.mod_alt != XKB_MOD_INVALID)
ret |= (1 << c->xkb.mod_alt);
if ((in & Mod2Mask) && c->xkb.mod_mod2 != XKB_MOD_INVALID)
ret |= (1 << c->xkb.mod_mod2);
if ((in & Mod3Mask) && c->xkb.mod_mod3 != XKB_MOD_INVALID)
ret |= (1 << c->xkb.mod_mod3);
if ((in & Mod4Mask) && c->xkb.mod_super != XKB_MOD_INVALID)
ret |= (1 << c->xkb.mod_super);
if ((in & Mod5Mask) && c->xkb.mod_mod5 != XKB_MOD_INVALID)
ret |= (1 << c->xkb.mod_mod5);
return ret;
}
static void
x11_compositor_setup_xkb(struct x11_compositor *c)
{
#ifndef HAVE_XCB_XKB
fprintf(stderr, "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;
uint32_t values[1] = { XCB_EVENT_MASK_PROPERTY_CHANGE };
c->has_xkb = 0;
c->xkb_event_base = 0;
ext = xcb_get_extension_data(c->conn, &xcb_xkb_id);
if (!ext) {
fprintf(stderr,
"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) {
fprintf(stderr,
"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) {
fprintf(stderr, "couldn't start using XKB extension\n");
return;
}
if (!use_ext_reply->supported) {
fprintf(stderr,
"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)) {
fprintf(stderr, "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) {
fprintf(stderr, "failed to get initial XKB state\n");
return;
}
xkb_state_update_mask(c->xkb.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);
xcb_change_window_attributes(c->conn, c->screen->root,
XCB_CW_EVENT_MASK, values);
c->has_xkb = 1;
#endif
}
#ifdef HAVE_XCB_XKB
static void
update_xkb_keymap(struct x11_compositor *c)
{
struct xkb_keymap *keymap;
char *keymap_str;
keymap = x11_compositor_get_keymap(c);
if (!keymap) {
fprintf(stderr, "failed to get XKB keymap\n");
return;
}
xkb_keymap_unref(c->xkb.keymap);
c->xkb.keymap = keymap;
keymap_str = xkb_keymap_get_as_string(c->xkb.keymap,
XKB_KEYMAP_FORMAT_TEXT_V1);
wlb_keyboard_set_keymap(c->keyboard, keymap_str, strlen(keymap_str),
WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1);
free(keymap_str);
}
#endif
#define F(field) offsetof(struct x11_compositor, field)
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;
};
static int
x11_input_create(struct x11_compositor *c)
{
struct xkb_keymap *keymap;
char *keymap_str;
c->seat = wlb_seat_create(c->compositor);
c->pointer = wlb_pointer_create(c->seat);
c->keyboard = wlb_keyboard_create(c->seat);
c->xkb.context = xkb_context_new(0);
c->xkb.keymap = x11_compositor_get_keymap(c);
keymap_str = xkb_keymap_get_as_string(c->xkb.keymap,
XKB_KEYMAP_FORMAT_TEXT_V1);
wlb_keyboard_set_keymap(c->keyboard, keymap_str, strlen(keymap_str),
WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1);
free(keymap_str);
c->xkb.state = xkb_state_new(c->xkb.keymap);
x11_compositor_setup_xkb(c);
return 0;
}
static void
x11_input_destroy(struct x11_compositor *c)
{
xkb_state_unref(c->xkb.state);
xkb_keymap_unref(c->xkb.keymap);
xkb_context_unref(c->xkb.context);
memset(&c->xkb, 0, sizeof(c->xkb));
wlb_seat_destroy(c->seat);
}
#define WM_NORMAL_HINTS_MIN_SIZE 16
#define WM_NORMAL_HINTS_MAX_SIZE 32
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_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);
#if 0
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);
#endif
xcb_free_gc(c->conn, gc);
xcb_free_pixmap(c->conn, pixmap);
}
uint32_t
x11_compositor_get_time()
{
struct timeval tv;
gettimeofday(&tv, NULL);
return tv.tv_sec * 1000 + tv.tv_usec / 1000;
}
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->output_list, compositor_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->xkb.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);
wlb_keyboard_modifiers(c->keyboard,
get_xkb_mod_mask(c, state->baseMods),
get_xkb_mod_mask(c, state->latchedMods),
get_xkb_mod_mask(c, state->lockedMods),
0);
}
#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);
xkb_state_update_mask(c->xkb.state,
c->xkb.mods_depressed & mask,
c->xkb.mods_latched & mask,
c->xkb.mods_locked & mask,
0,
0,
(x11_mask >> 13) & 3);
c->xkb.mods_depressed =
xkb_state_serialize_mods(c->xkb.state, XKB_STATE_DEPRESSED);
c->xkb.mods_latched =
xkb_state_serialize_mods(c->xkb.state, XKB_STATE_LATCHED);
c->xkb.mods_locked =
xkb_state_serialize_mods(c->xkb.state, XKB_STATE_LOCKED);
wlb_keyboard_modifiers(c->keyboard,
c->xkb.mods_depressed,
c->xkb.mods_latched,
c->xkb.mods_locked,
0);
}
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)
wlb_pointer_axis(c->pointer,
x11_compositor_get_time(),
WL_POINTER_AXIS_VERTICAL_SCROLL,
-DEFAULT_AXIS_STEP_DISTANCE);
return;
case 5:
if (state)
wlb_pointer_axis(c->pointer,
x11_compositor_get_time(),
WL_POINTER_AXIS_VERTICAL_SCROLL,
DEFAULT_AXIS_STEP_DISTANCE);
return;
case 6:
if (state)
wlb_pointer_axis(c->pointer,
x11_compositor_get_time(),
WL_POINTER_AXIS_HORIZONTAL_SCROLL,
-DEFAULT_AXIS_STEP_DISTANCE);
return;
case 7:
if (state)
wlb_pointer_axis(c->pointer,
x11_compositor_get_time(),
WL_POINTER_AXIS_HORIZONTAL_SCROLL,
DEFAULT_AXIS_STEP_DISTANCE);
return;
}
wlb_pointer_button(c->pointer, x11_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);
wlb_pointer_move_on_output_device(c->pointer, x11_compositor_get_time(),
output->output,
wl_fixed_from_int(motion_notify->event_x),
wl_fixed_from_int(motion_notify->event_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);
wlb_keyboard_key(c->keyboard,
x11_compositor_get_time(),
key_release->detail - 8,
WL_KEYBOARD_KEY_STATE_RELEASED);
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? */
wlb_keyboard_enter(c->keyboard, &c->keys);
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);
wlb_keyboard_key(c->keyboard,
x11_compositor_get_time(),
key_press->detail - 8,
WL_KEYBOARD_KEY_STATE_PRESSED);
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;
wlb_keyboard_key(c->keyboard,
x11_compositor_get_time(),
key_release->detail - 8,
WL_KEYBOARD_KEY_STATE_RELEASED);
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;
#if 0
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;
#endif
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->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;
wlb_keyboard_leave(c->keyboard);
break;
default:
break;
}
#ifdef HAVE_XCB_XKB
if (c->has_xkb) {
if (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);
} else if (response_type == XCB_PROPERTY_NOTIFY) {
xcb_property_notify_event_t *prop_notify =
(xcb_property_notify_event_t *) event;
if (prop_notify->window == c->screen->root &&
prop_notify->atom == c->atom.xkb_names &&
prop_notify->state == XCB_PROPERTY_NEW_VALUE)
update_xkb_keymap(c);
}
}
#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);
/* XXX: Should be STATE_UPDATE_AUTOMATIC */
wlb_keyboard_key(c->keyboard, x11_compositor_get_time(),
key_release->detail - 8,
WL_KEYBOARD_KEY_STATE_RELEASED);
free(prev);
prev = NULL;
break;
default:
break;
}
return count;
}
static void
init_gl_renderer(struct x11_compositor *c)
{
EGLDisplay display;
display = eglGetDisplay((EGLNativeDisplayType)c->dpy);
if (display == EGL_NO_DISPLAY)
return;
if (eglInitialize(display, NULL, NULL) == EGL_FALSE)
return;
c->gles2_renderer =
wlb_gles2_renderer_create_for_egl(c->compositor, display, NULL);
if (!c->gles2_renderer)
eglTerminate(display);
}
struct x11_compositor *
x11_compositor_create(struct wl_display *display, int use_pixman)
{
struct x11_compositor *c;
xcb_screen_iterator_t siter;
struct wl_event_loop *loop;
c = calloc(1, sizeof *c);
if (!c)
return NULL;
c->display = display;
c->compositor = wlb_compositor_create(c->display);
if (!c->compositor)
goto err_free;
c->dpy = XOpenDisplay(NULL);
if (c->dpy == NULL)
goto err_wlb_compositor;
c->conn = XGetXCBConnection(c->dpy);
XSetEventQueueOwner(c->dpy, XCBOwnsEventQueue);
if (xcb_connection_has_error(c->conn))
goto err_xdisplay;
siter = xcb_setup_roots_iterator(xcb_get_setup(c->conn));
c->screen = siter.data;
wl_array_init(&c->keys);
x11_compositor_get_resources(c);
//x11_compositor_get_wm_info(c);
if (!use_pixman) {
init_gl_renderer(c);
if (!c->gles2_renderer)
printf("Failed to initialize EGL. "
"Falling back to software compositing\n");
}
if (!c->gles2_renderer)
c->pixman_renderer = wlb_pixman_renderer_create(c->compositor);
if (x11_input_create(c) < 0)
goto err_xdisplay;
wl_list_init(&c->output_list);
loop = wl_display_get_event_loop(c->display);
c->xcb_source =
wl_event_loop_add_fd(loop, xcb_get_file_descriptor(c->conn),
WL_EVENT_READABLE,
x11_compositor_handle_event, c);
wl_event_source_check(c->xcb_source);
return c;
err_xdisplay:
XCloseDisplay(c->dpy);
err_wlb_compositor:
wlb_compositor_destroy(c->compositor);
err_free:
free(c);
}
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)
{
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 */
fprintf(stderr, "SHM extension is not available\n");
errno = ENOENT;
return -1;
}