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xserver/hw/xwayland/xwayland-window.c

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/*
* Copyright © 2011-2014 Intel Corporation
*
* 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 <dix-config.h>
#include <float.h>
#include <math.h>
#include <sys/mman.h>
#include <X11/X.h>
#include <X11/Xatom.h>
#include "dix/dix_priv.h"
#include "dix/property_priv.h"
#include "dix/resource_priv.h"
#include "compositeext.h"
#include "compint.h"
#include "inputstr.h"
#include "propertyst.h"
#include "xwayland-types.h"
#include "xwayland-input.h"
#include "xwayland-pixmap.h"
#include "xwayland-present.h"
#include "xwayland-screen.h"
#include "xwayland-window.h"
#include "xwayland-window-buffers.h"
#include "xwayland-shm.h"
#include "xwayland-dmabuf.h"
#include "linux-dmabuf-unstable-v1-client-protocol.h"
#include "tearing-control-v1-client-protocol.h"
#include "viewporter-client-protocol.h"
#include "xdg-shell-client-protocol.h"
#include "xwayland-shell-v1-client-protocol.h"
#include "fractional-scale-v1-client-protocol.h"
#include "linux-drm-syncobj-v1-client-protocol.h"
#define DELAYED_WL_SURFACE_DESTROY 1000 /* ms */
#define MAX_ROOTFUL_WIDTH 32767
#define MAX_ROOTFUL_HEIGHT 32767
#define MIN_ROOTFUL_WIDTH 320
#define MIN_ROOTFUL_HEIGHT 200
#define FRACTIONAL_SCALE_DENOMINATOR 120
static DevPrivateKeyRec xwl_window_private_key;
static DevPrivateKeyRec xwl_damage_private_key;
static const char *xwl_surface_tag = "xwl-surface";
static Bool xwl_window_attach_buffer(struct xwl_window *);
struct xwl_window *
xwl_window_get(WindowPtr window)
{
return dixLookupPrivate(&window->devPrivates, &xwl_window_private_key);
}
static DamagePtr
window_get_damage(WindowPtr window)
{
return dixLookupPrivate(&window->devPrivates, &xwl_damage_private_key);
}
RegionPtr
xwl_window_get_damage_region(struct xwl_window *xwl_window)
{
return DamageRegion(window_get_damage(xwl_window->surface_window));
}
struct xwl_window *
xwl_window_from_window(WindowPtr window)
{
struct xwl_window *xwl_window;
while (window) {
xwl_window = xwl_window_get(window);
if (xwl_window)
return xwl_window;
window = window->parent;
}
return NULL;
}
static void
xwl_window_set_xwayland_tag(struct xwl_window *xwl_window)
{
wl_proxy_set_tag((struct wl_proxy *)xwl_window->surface, &xwl_surface_tag);
}
static void
xwl_window_clear_xwayland_tag(struct xwl_window *xwl_window)
{
wl_proxy_set_tag((struct wl_proxy *)xwl_window->surface, NULL);
}
Bool
is_surface_from_xwl_window(struct wl_surface *surface)
{
return wl_proxy_get_tag((struct wl_proxy *) surface) == &xwl_surface_tag;
}
static void
xwl_window_set_allow_commits(struct xwl_window *xwl_window, Bool allow,
const char *debug_msg)
{
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
DamagePtr damage;
xwl_window->allow_commits = allow;
DebugF("XWAYLAND: win %d allow_commits = %d (%s)\n",
xwl_window->toplevel->drawable.id, allow, debug_msg);
damage = window_get_damage(xwl_window->surface_window);
if (allow &&
xorg_list_is_empty(&xwl_window->link_damage) &&
damage &&
RegionNotEmpty(DamageRegion(damage))) {
xorg_list_add(&xwl_window->link_damage,
&xwl_screen->damage_window_list);
}
}
static void
xwl_window_set_allow_commits_from_property(struct xwl_window *xwl_window,
PropertyPtr prop)
{
static Bool warned = FALSE;
CARD32 *propdata;
if (prop->propertyName != xwl_window->xwl_screen->allow_commits_prop)
FatalError("Xwayland internal error: prop mismatch in %s.\n", __func__);
if (prop->type != XA_CARDINAL || prop->format != 32 || prop->size != 1) {
/* Not properly set, so fall back to safe and glitchy */
xwl_window_set_allow_commits(xwl_window, TRUE, "WM fault");
if (!warned) {
LogMessageVerb(X_WARNING, 0, "Window manager is misusing property %s.\n",
NameForAtom(prop->propertyName));
warned = TRUE;
}
return;
}
propdata = prop->data;
xwl_window_set_allow_commits(xwl_window, !!propdata[0], "from property");
}
void
xwl_window_update_property(struct xwl_window *xwl_window,
PropertyStateRec *propstate)
{
switch (propstate->state) {
case PropertyNewValue:
xwl_window_set_allow_commits_from_property(xwl_window, propstate->prop);
break;
case PropertyDelete:
xwl_window_set_allow_commits(xwl_window, TRUE, "property deleted");
break;
default:
break;
}
}
static void
need_source_validate_dec(struct xwl_screen *xwl_screen)
{
xwl_screen->need_source_validate--;
if (!xwl_screen->need_source_validate)
xwl_screen->screen->SourceValidate = xwl_screen->SourceValidate;
}
static void
xwl_source_validate(DrawablePtr drawable, int x, int y, int width, int height,
unsigned int sub_window_mode)
{
struct xwl_window *xwl_window;
WindowPtr window, iterator;
RegionRec region;
BoxRec box;
if (sub_window_mode != IncludeInferiors ||
drawable->type != DRAWABLE_WINDOW)
return;
window = (WindowPtr)drawable;
xwl_window = xwl_window_from_window(window);
if (!xwl_window || !xwl_window->surface_window_damage ||
!RegionNotEmpty(xwl_window->surface_window_damage))
return;
for (iterator = xwl_window->toplevel;
;
iterator = iterator->firstChild) {
if (iterator == xwl_window->surface_window)
return;
if (iterator == window)
break;
}
box.x1 = x;
box.y1 = y;
box.x2 = x + width;
box.y2 = y + height;
RegionInit(&region, &box, 1);
RegionIntersect(&region, &region, xwl_window->surface_window_damage);
if (RegionNotEmpty(&region)) {
ScreenPtr screen = drawable->pScreen;
PixmapPtr dst_pix, src_pix;
BoxPtr pbox;
GCPtr pGC;
int nbox;
dst_pix = screen->GetWindowPixmap(window);
pGC = GetScratchGC(dst_pix->drawable.depth, screen);
if (!pGC)
FatalError("GetScratchGC failed for depth %d", dst_pix->drawable.depth);
ValidateGC(&dst_pix->drawable, pGC);
src_pix = screen->GetWindowPixmap(xwl_window->surface_window);
RegionSubtract(xwl_window->surface_window_damage,
xwl_window->surface_window_damage,
&region);
if (!RegionNotEmpty(xwl_window->surface_window_damage))
need_source_validate_dec(xwl_window->xwl_screen);
if (dst_pix->screen_x || dst_pix->screen_y)
RegionTranslate(&region, -dst_pix->screen_x, -dst_pix->screen_y);
pbox = RegionRects(&region);
nbox = RegionNumRects(&region);
while (nbox--) {
(void) (*pGC->ops->CopyArea) (&src_pix->drawable,
&dst_pix->drawable,
pGC,
pbox->x1, pbox->y1,
pbox->x2 - pbox->x1, pbox->y2 - pbox->y1,
pbox->x1, pbox->y1);
pbox++;
}
FreeScratchGC(pGC);
}
RegionUninit(&region);
}
static void
need_source_validate_inc(struct xwl_screen *xwl_screen)
{
if (!xwl_screen->need_source_validate) {
ScreenPtr screen = xwl_screen->screen;
xwl_screen->SourceValidate = screen->SourceValidate;
screen->SourceValidate = xwl_source_validate;
}
xwl_screen->need_source_validate++;
}
static void
damage_report(DamagePtr pDamage, RegionPtr pRegion, void *data)
{
struct xwl_window *xwl_window = data;
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
PixmapPtr window_pixmap;
if (xwl_window->surface_window_damage &&
RegionNotEmpty(pRegion)) {
if (!RegionNotEmpty(xwl_window->surface_window_damage))
need_source_validate_inc(xwl_screen);
RegionUnion(xwl_window->surface_window_damage,
xwl_window->surface_window_damage,
DamageRegion(pDamage));
}
if (xwl_screen->ignore_damage)
return;
if (xorg_list_is_empty(&xwl_window->link_damage))
xorg_list_add(&xwl_window->link_damage, &xwl_screen->damage_window_list);
window_pixmap = xwl_screen->screen->GetWindowPixmap(xwl_window->surface_window);
if (xwl_is_client_pixmap(window_pixmap))
dixDestroyPixmap(xwl_window_swap_pixmap(xwl_window, FALSE), 0);
}
static void
damage_destroy(DamagePtr pDamage, void *data)
{
}
static Bool
register_damage(struct xwl_window *xwl_window)
{
WindowPtr surface_window = xwl_window->surface_window;
DamagePtr damage;
damage = DamageCreate(damage_report, damage_destroy, DamageReportNonEmpty,
FALSE, surface_window->drawable.pScreen, xwl_window);
if (damage == NULL) {
ErrorF("Failed creating damage\n");
return FALSE;
}
DamageRegister(&surface_window->drawable, damage);
dixSetPrivate(&surface_window->devPrivates, &xwl_damage_private_key, damage);
return TRUE;
}
static void
unregister_damage(struct xwl_window *xwl_window)
{
WindowPtr surface_window = xwl_window->surface_window;
DamagePtr damage;
damage = dixLookupPrivate(&surface_window->devPrivates, &xwl_damage_private_key);
if (!damage)
return;
DamageUnregister(damage);
DamageDestroy(damage);
dixSetPrivate(&surface_window->devPrivates, &xwl_damage_private_key, NULL);
}
static Bool
xwl_window_update_fractional_scale(struct xwl_window *xwl_window,
int fractional_scale_numerator)
{
int old_scale_numerator = xwl_window->fractional_scale_numerator;
xwl_window->fractional_scale_numerator = fractional_scale_numerator;
return (old_scale_numerator != fractional_scale_numerator);
}
static double
xwl_window_get_fractional_scale_factor(struct xwl_window *xwl_window)
{
return (double) xwl_window->fractional_scale_numerator /
(double) FRACTIONAL_SCALE_DENOMINATOR;
}
static Bool
xwl_window_has_viewport_enabled(struct xwl_window *xwl_window)
{
return (xwl_window->viewport != NULL);
}
static void
xwl_window_disable_viewport(struct xwl_window *xwl_window)
{
assert (xwl_window->viewport);
DebugF("XWAYLAND: disabling viewport\n");
wp_viewport_destroy(xwl_window->viewport);
xwl_window->viewport = NULL;
xwl_window->viewport_scale_x = 1.0;
xwl_window->viewport_scale_y = 1.0;
}
/* Enable the viewport for fractional scale support with Xwayland rootful.
* Fractional scale support is not used with Xwayland rootful fullscreen (which
* sets its own XRandR resolution) so we can use the viewport for either
* fullscreen mode or fractional scale.
*/
static void
xwl_window_enable_viewport_for_fractional_scale(struct xwl_window *xwl_window,
int width, int height)
{
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
int buffer_width, buffer_height;
double scale;
scale = xwl_window_get_fractional_scale_factor(xwl_window);
buffer_width = round((double) width / scale);
buffer_height = round((double) height / scale);
if (!xwl_window_has_viewport_enabled(xwl_window))
xwl_window->viewport = wp_viewporter_get_viewport(xwl_screen->viewporter,
xwl_window->surface);
DebugF("XWAYLAND: enabling viewport for fractional scale %dx%d -> %dx%d\n",
width, height, buffer_width, buffer_height);
wp_viewport_set_source(xwl_window->viewport,
wl_fixed_from_int(0),
wl_fixed_from_int(0),
wl_fixed_from_int(width),
wl_fixed_from_int(height));
wp_viewport_set_destination(xwl_window->viewport,
buffer_width,
buffer_height);
xwl_window->viewport_scale_x = scale;
xwl_window->viewport_scale_y = scale;
}
/* Enable the viewport for Xwayland rootful fullscreen, to match the XRandR
* resolution with the actual output size.
*/
static void
xwl_window_enable_viewport_for_output(struct xwl_window *xwl_window,
struct xwl_output *xwl_output,
struct xwl_emulated_mode *emulated_mode)
{
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
int width, height;
if (!xwl_window_has_viewport_enabled(xwl_window)) {
DebugF("XWAYLAND: enabling viewport %dx%d -> %dx%d\n",
emulated_mode->width, emulated_mode->height,
xwl_output->width, xwl_output->height);
xwl_window->viewport = wp_viewporter_get_viewport(xwl_window->xwl_screen->viewporter,
xwl_window->surface);
}
width = emulated_mode->width / xwl_screen->global_surface_scale;
height = emulated_mode->height / xwl_screen->global_surface_scale;
wp_viewport_set_source(xwl_window->viewport,
wl_fixed_from_int(0),
wl_fixed_from_int(0),
wl_fixed_from_int(width),
wl_fixed_from_int(height));
wp_viewport_set_destination(xwl_window->viewport,
xwl_output->width,
xwl_output->height);
xwl_window->viewport_scale_x = (float) width / xwl_output->width;
xwl_window->viewport_scale_y = (float) height / xwl_output->height;
}
static Bool
window_is_wm_window(WindowPtr window)
{
struct xwl_screen *xwl_screen = xwl_screen_get(window->drawable.pScreen);
return dixClientIdForXID(window->drawable.id) == xwl_screen->wm_client_id;
}
static WindowPtr
window_get_client_toplevel(WindowPtr window)
{
assert(window);
/* If the toplevel window is owned by the window-manager, then the
* actual client toplevel window has been reparented to some window-manager
* decoration/wrapper windows. In that case recurse by checking the client
* of the first *and only* child of the decoration/wrapper window.
*/
while (window_is_wm_window(window)) {
if (!window->firstChild || window->firstChild != window->lastChild)
return NULL; /* Should never happen, skip resolution emulation */
window = window->firstChild;
}
return window;
}
static Bool
is_output_suitable_for_fullscreen(struct xwl_output *xwl_output)
{
if (xwl_output == NULL)
return FALSE;
if (xwl_output->width == 0 || xwl_output->height == 0)
return FALSE;
return TRUE;
}
static struct xwl_output *
xwl_window_get_output(struct xwl_window *xwl_window)
{
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
struct xwl_output *xwl_output;
xwl_output = xwl_output_get_output_from_name(xwl_screen, xwl_screen->output_name);
if (is_output_suitable_for_fullscreen(xwl_output))
return xwl_output;
xwl_output = xwl_output_from_wl_output(xwl_screen, xwl_window->wl_output);
if (is_output_suitable_for_fullscreen(xwl_output))
return xwl_output;
return xwl_screen_get_first_output(xwl_screen);
}
static Bool
xwl_window_should_enable_viewport_fullscreen(struct xwl_window *xwl_window,
struct xwl_output **xwl_output_ret,
struct xwl_emulated_mode *emulated_mode_ret)
{
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
struct xwl_output *xwl_output;
xwl_output = xwl_window_get_output(xwl_window);
if (!xwl_output)
return FALSE;
*xwl_output_ret = xwl_output;
emulated_mode_ret->server_output_id = 0;
emulated_mode_ret->width = xwl_screen_get_width(xwl_screen);
emulated_mode_ret->height = xwl_screen_get_height(xwl_screen);
emulated_mode_ret->from_vidmode = FALSE;
return TRUE;
}
static Bool
xwl_window_should_enable_viewport(struct xwl_window *xwl_window,
struct xwl_output **xwl_output_ret,
struct xwl_emulated_mode *emulated_mode_ret)
{
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
struct xwl_emulated_mode *emulated_mode;
struct xwl_output *xwl_output;
ClientPtr owner;
WindowPtr window;
DrawablePtr drawable;
if (!xwl_screen_has_viewport_support(xwl_screen))
return FALSE;
if (xwl_screen->fullscreen)
return xwl_window_should_enable_viewport_fullscreen(xwl_window,
xwl_output_ret,
emulated_mode_ret);
if (!xwl_screen->rootless)
return FALSE;
window = window_get_client_toplevel(xwl_window->toplevel);
if (!window)
return FALSE;
owner = dixClientForWindow(window);
drawable = &window->drawable;
/* 1. Test if the window matches the emulated mode on one of the outputs
* This path gets hit by most games / libs (e.g. SDL, SFML, OGRE)
*/
xorg_list_for_each_entry(xwl_output, &xwl_screen->output_list, link) {
emulated_mode = xwl_output_get_emulated_mode_for_client(xwl_output, owner);
if (!emulated_mode)
continue;
if (drawable->x == xwl_output->x &&
drawable->y == xwl_output->y &&
drawable->width == emulated_mode->width &&
drawable->height == emulated_mode->height) {
memcpy(emulated_mode_ret, emulated_mode, sizeof(struct xwl_emulated_mode));
*xwl_output_ret = xwl_output;
return TRUE;
}
}
/* 2. Test if the window uses override-redirect + vidmode
* and matches (fully covers) the entire screen.
* This path gets hit by: allegro4, ClanLib-1.0.
*/
xwl_output = xwl_screen_get_first_output(xwl_screen);
emulated_mode = xwl_output_get_emulated_mode_for_client(xwl_output, owner);
if (xwl_output && xwl_window->toplevel->overrideRedirect &&
emulated_mode && emulated_mode->from_vidmode &&
drawable->x == 0 && drawable->y == 0 &&
drawable->width == xwl_screen_get_width(xwl_screen) &&
drawable->height == xwl_screen_get_height(xwl_screen)) {
memcpy(emulated_mode_ret, emulated_mode, sizeof(struct xwl_emulated_mode));
*xwl_output_ret = xwl_output;
return TRUE;
}
return FALSE;
}
static Bool
xwl_window_should_enable_fractional_scale_viewport(struct xwl_window *xwl_window)
{
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
double scale;
if (!xwl_screen_should_use_fractional_scale(xwl_screen))
return FALSE;
scale = xwl_window_get_fractional_scale_factor(xwl_window);
return fabs(scale - 1.00) > FLT_EPSILON;
}
static void
xwl_window_check_fractional_scale_viewport(struct xwl_window *xwl_window,
int width, int height)
{
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
if (!xwl_screen_should_use_fractional_scale(xwl_screen))
return;
if (xwl_window_should_enable_fractional_scale_viewport(xwl_window))
xwl_window_enable_viewport_for_fractional_scale(xwl_window, width, height);
else if (xwl_window_has_viewport_enabled(xwl_window))
xwl_window_disable_viewport(xwl_window);
}
void
xwl_window_check_resolution_change_emulation(struct xwl_window *xwl_window)
{
struct xwl_emulated_mode emulated_mode;
struct xwl_output *xwl_output;
if (xwl_window_should_enable_viewport(xwl_window, &xwl_output, &emulated_mode))
xwl_window_enable_viewport_for_output(xwl_window, xwl_output, &emulated_mode);
else if (xwl_window_should_enable_fractional_scale_viewport(xwl_window))
return;
else if (xwl_window_has_viewport_enabled(xwl_window))
xwl_window_disable_viewport(xwl_window);
}
/* This checks if the passed in Window is a toplevel client window, note this
* returns false for window-manager decoration windows and returns true for
* the actual client top-level window even if it has been reparented to
* a window-manager decoration window.
*/
Bool
xwl_window_is_toplevel(WindowPtr window)
{
if (!window->parent || window_is_wm_window(window))
return FALSE;
/* CSD and override-redirect toplevel windows */
if (!window->parent->parent)
return TRUE;
/* Normal toplevel client windows, reparented to a window-manager window */
return window_is_wm_window(window->parent);
}
static void
xwl_window_init_allow_commits(struct xwl_window *xwl_window)
{
PropertyPtr prop = NULL;
int ret;
ret = dixLookupProperty(&prop, xwl_window->toplevel,
xwl_window->xwl_screen->allow_commits_prop,
serverClient, DixReadAccess);
if (ret == Success && prop)
xwl_window_set_allow_commits_from_property(xwl_window, prop);
else
xwl_window_set_allow_commits(xwl_window, TRUE, "no property");
}
static uint32_t
serial_lo(uint64_t value)
{
return value & 0xFFFFFFFFu;
}
static uint32_t
serial_hi(uint64_t value)
{
return value >> 32u;
}
static void
send_window_client_message(struct xwl_window *xwl_window, Atom type_atom, uint64_t value)
{
DeviceIntPtr dev;
xEvent e;
e.u.u.type = ClientMessage;
e.u.u.detail = 32;
e.u.clientMessage.window = xwl_window->toplevel->drawable.id;
e.u.clientMessage.u.l.type = type_atom;
e.u.clientMessage.u.l.longs0 = serial_lo(value);
e.u.clientMessage.u.l.longs1 = serial_hi(value);
e.u.clientMessage.u.l.longs2 = 0;
e.u.clientMessage.u.l.longs3 = 0;
e.u.clientMessage.u.l.longs4 = 0;
dev = PickPointer(serverClient);
DeliverEventsToWindow(dev, xwl_window->xwl_screen->screen->root,
&e, 1, SubstructureRedirectMask, NullGrab);
}
static void
send_surface_id_event_serial(struct xwl_window *xwl_window)
{
static const char atom_name[] = "WL_SURFACE_SERIAL";
static Atom type_atom;
uint64_t serial;
if (type_atom == None)
type_atom = MakeAtom(atom_name, strlen(atom_name), TRUE);
serial = ++xwl_window->xwl_screen->surface_association_serial;
send_window_client_message(xwl_window, type_atom, serial);
xwayland_surface_v1_set_serial(xwl_window->xwayland_surface,
serial_lo(serial), serial_hi(serial));
wl_surface_commit(xwl_window->surface);
/* Flush wayland display *after* commit in the new path. */
wl_display_flush(xwl_window->xwl_screen->display);
}
static void
send_surface_id_event_legacy(struct xwl_window *xwl_window)
{
static const char atom_name[] = "WL_SURFACE_ID";
static Atom type_atom;
uint32_t surface_id;
if (type_atom == None)
type_atom = MakeAtom(atom_name, strlen(atom_name), TRUE);
surface_id = wl_proxy_get_id((struct wl_proxy *) xwl_window->surface);
/* Flush wayland display *before* setting the atom in the legacy path */
wl_display_flush(xwl_window->xwl_screen->display);
send_window_client_message(xwl_window, type_atom, (uint64_t)surface_id);
}
static void
send_surface_id_event(struct xwl_window *xwl_window)
{
return xwl_window->xwayland_surface
? send_surface_id_event_serial(xwl_window)
: send_surface_id_event_legacy(xwl_window);
}
static Bool
xwl_window_set_fullscreen(struct xwl_window *xwl_window)
{
struct xwl_output *xwl_output;
struct wl_output *wl_output = NULL;
if (!xwl_window->xdg_toplevel)
return FALSE;
xwl_output = xwl_window_get_output(xwl_window);
if (xwl_output)
wl_output = xwl_output->output;
if (wl_output && xwl_window->wl_output_fullscreen == wl_output)
return FALSE;
xdg_toplevel_set_fullscreen(xwl_window->xdg_toplevel, wl_output);
xwl_window_check_resolution_change_emulation(xwl_window);
wl_surface_commit(xwl_window->surface);
xwl_window->wl_output_fullscreen = wl_output;
return TRUE;
}
void
xwl_window_rootful_update_fullscreen(struct xwl_window *xwl_window,
struct xwl_output *xwl_output)
{
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
if (!xwl_screen->fullscreen)
return;
if (xwl_window->toplevel != xwl_screen->screen->root)
return;
if (xwl_window->wl_output_fullscreen != xwl_output->output)
return;
/* The size and position of the output may have changed, clear our
* output to make sure the next call to xwl_window_set_fullscreen()
* recomputes the size and updates the viewport as needed.
*/
xwl_window->wl_output_fullscreen = NULL;
xwl_window_set_fullscreen(xwl_window);
}
void
xwl_window_rootful_update_title(struct xwl_window *xwl_window)
{
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
char title[128];
const char *grab_message = "";
if (xwl_screen->host_grab) {
if (xwl_screen->has_grab)
grab_message = " - ([ctrl]+[shift] releases mouse and keyboard)";
else
grab_message = " - ([ctrl]+[shift] grabs mouse and keyboard)";
}
snprintf(title, sizeof(title), "Xwayland on :%s%s", display, grab_message);
#ifdef XWL_HAS_LIBDECOR
if (xwl_window->libdecor_frame)
libdecor_frame_set_title(xwl_window->libdecor_frame, title);
else
#endif
if (xwl_window->xdg_toplevel)
xdg_toplevel_set_title(xwl_window->xdg_toplevel, title);
}
static void
xwl_window_rootful_set_app_id(struct xwl_window *xwl_window)
{
const char *app_id = "org.freedesktop.Xwayland";
#ifdef XWL_HAS_LIBDECOR
if (xwl_window->libdecor_frame)
libdecor_frame_set_app_id(xwl_window->libdecor_frame, app_id);
else
#endif
if (xwl_window->xdg_toplevel)
xdg_toplevel_set_app_id(xwl_window->xdg_toplevel, app_id);
}
static void
xwl_window_maybe_resize(struct xwl_window *xwl_window, double width, double height)
{
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
struct xwl_output *xwl_output;
double scale;
RRModePtr mode;
/* Clamp the size */
width = min(max(width, MIN_ROOTFUL_WIDTH), MAX_ROOTFUL_WIDTH);
height = min(max(height, MIN_ROOTFUL_HEIGHT), MAX_ROOTFUL_HEIGHT);
/* Make sure the size is a multiple of the scale, it's a protocol error otherwise. */
scale = xwl_screen->global_surface_scale;
if (scale > 1.0) {
width = round(width / scale) * scale;
height = round(height / scale) * scale;
}
if (width == xwl_screen->width && height == xwl_screen->height)
return;
xwl_screen->width = width;
xwl_screen->height = height;
/* When fractional scale is used, the global surface scale is 1, and vice
* versa, so we can multiply the two here, and have the resulting scale
* apply for both cases, the legacy wl_surface buffer scale and fractional
* scaling.
*/
scale *= xwl_window_get_fractional_scale_factor(xwl_window);
xwl_output = xwl_screen_get_fixed_or_first_output(xwl_screen);
if (!xwl_randr_add_modes_fixed(xwl_output, round(width / scale), round(height / scale)))
return;
mode = xwl_output_find_mode(xwl_output, round(width / scale), round(height / scale));
xwl_output_set_mode_fixed(xwl_output, mode);
xwl_window_attach_buffer(xwl_window);
}
#ifdef XWL_HAS_LIBDECOR
static void
xwl_window_libdecor_set_size_limits(struct xwl_window *xwl_window)
{
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
libdecor_frame_set_min_content_size(xwl_window->libdecor_frame,
MIN_ROOTFUL_WIDTH /
xwl_screen->global_surface_scale,
MIN_ROOTFUL_HEIGHT /
xwl_screen->global_surface_scale);
libdecor_frame_set_max_content_size(xwl_window->libdecor_frame,
MAX_ROOTFUL_WIDTH /
xwl_screen->global_surface_scale,
MAX_ROOTFUL_HEIGHT /
xwl_screen->global_surface_scale);
}
static void
xwl_window_update_libdecor_size(struct xwl_window *xwl_window,
struct libdecor_configuration *configuration /* nullable */,
int width, int height)
{
struct libdecor_state *state;
double scale;
if (xwl_window->libdecor_frame) {
scale = xwl_window_get_fractional_scale_factor(xwl_window);
state = libdecor_state_new(round((double) width / scale),
round((double) height / scale));
libdecor_frame_commit(xwl_window->libdecor_frame, state, configuration);
libdecor_state_free(state);
}
}
static void
handle_libdecor_configure(struct libdecor_frame *frame,
struct libdecor_configuration *configuration,
void *data)
{
struct xwl_window *xwl_window = data;
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
int width, height;
double new_width, new_height;
double scale;
if (libdecor_configuration_get_content_size(configuration, frame, &width, &height)) {
new_width = (double) width;
new_height = (double) height;
}
else {
new_width = xwl_screen->width / xwl_screen->global_surface_scale;
new_height = xwl_screen->height / xwl_screen->global_surface_scale;
}
new_width *= xwl_screen->global_surface_scale;
new_height *= xwl_screen->global_surface_scale;
scale = xwl_window_get_fractional_scale_factor(xwl_window);
new_width *= scale;
new_height *= scale;
xwl_window_maybe_resize(xwl_window, new_width, new_height);
new_width = xwl_screen->width / xwl_screen->global_surface_scale;
new_height = xwl_screen->height / xwl_screen->global_surface_scale;
xwl_window_update_libdecor_size(xwl_window, configuration,
round(new_width), round(new_height));
wl_surface_commit(xwl_window->surface);
}
static void
handle_libdecor_close(struct libdecor_frame *frame,
void *data)
{
DebugF("Terminating on compositor request");
GiveUp(0);
}
static void
handle_libdecor_commit(struct libdecor_frame *frame,
void *data)
{
struct xwl_window *xwl_window = data;
wl_surface_commit(xwl_window->surface);
}
static void
handle_libdecor_dismiss_popup(struct libdecor_frame *frame,
const char *seat_name,
void *data)
{
}
static struct libdecor_frame_interface libdecor_frame_iface = {
handle_libdecor_configure,
handle_libdecor_close,
handle_libdecor_commit,
handle_libdecor_dismiss_popup,
};
#endif
static void
xdg_surface_handle_configure(void *data,
struct xdg_surface *xdg_surface,
uint32_t serial)
{
struct xwl_window *xwl_window = data;
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
if (xwl_screen->fullscreen)
xwl_window_set_fullscreen(xwl_window);
xdg_surface_ack_configure(xdg_surface, serial);
wl_surface_commit(xwl_window->surface);
}
static const struct xdg_surface_listener xdg_surface_listener = {
xdg_surface_handle_configure,
};
static void
xwl_window_update_surface_scale(struct xwl_window *xwl_window)
{
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
int previous_scale, new_scale;
double new_width, new_height;
previous_scale = xwl_screen->global_surface_scale;
assert(previous_scale != 0);
xwl_window->surface_scale = xwl_window_get_max_output_scale(xwl_window);
if (xwl_screen_update_global_surface_scale(xwl_screen)) {
new_scale = xwl_screen->global_surface_scale;
DebugF("XWAYLAND: Global scale is now %i (was %i)\n",
new_scale, previous_scale);
new_width = xwl_screen->width / previous_scale * new_scale;
new_height = xwl_screen->height / previous_scale * new_scale;
wl_surface_set_buffer_scale(xwl_window->surface, xwl_screen->global_surface_scale);
/* Reflect the scale factor using XRandR transform */
xwl_output_set_xscale(xwl_screen->fixed_output, new_scale);
xwl_window_maybe_resize(xwl_window, new_width, new_height);
#ifdef XWL_HAS_LIBDECOR
if (xwl_window->libdecor_frame) {
xwl_window_libdecor_set_size_limits(xwl_window);
xwl_window_update_libdecor_size(xwl_window,
NULL,
round(new_width / new_scale),
round(new_height / new_scale));
}
else
#endif
wl_surface_commit(xwl_window->surface);
}
}
static void
xwl_window_enter_output(struct xwl_window *xwl_window, struct xwl_output *xwl_output)
{
struct xwl_window_output *window_output;
window_output = XNFcallocarray(1, sizeof(struct xwl_window_output));
window_output->xwl_output = xwl_output;
xorg_list_add(&window_output->link, &xwl_window->xwl_output_list);
}
void
xwl_window_leave_output(struct xwl_window *xwl_window, struct xwl_output *xwl_output)
{
struct xwl_window_output *window_output, *tmp;
xorg_list_for_each_entry_safe(window_output, tmp, &xwl_window->xwl_output_list, link) {
if (window_output->xwl_output == xwl_output) {
xorg_list_del(&window_output->link);
free(window_output);
}
}
}
static void
xwl_window_free_outputs(struct xwl_window *xwl_window)
{
struct xwl_window_output *window_output, *tmp;
xorg_list_for_each_entry_safe(window_output, tmp, &xwl_window->xwl_output_list, link) {
xorg_list_del(&window_output->link);
free(window_output);
}
}
int
xwl_window_get_max_output_scale(struct xwl_window *xwl_window)
{
struct xwl_window_output *window_output;
struct xwl_output *xwl_output;
int scale = 1;
xorg_list_for_each_entry(window_output, &xwl_window->xwl_output_list, link) {
xwl_output = window_output->xwl_output;
if (xwl_output->scale > scale)
scale = xwl_output->scale;
}
return scale;
}
static void
xwl_window_surface_enter(void *data,
struct wl_surface *wl_surface,
struct wl_output *wl_output)
{
struct xwl_window *xwl_window = data;
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
struct xwl_output *xwl_output = xwl_output_from_wl_output(xwl_screen, wl_output);
if (xwl_output) {
xwl_window_enter_output(xwl_window, xwl_output);
xwl_window_update_surface_scale(xwl_window);
}
if (xwl_window->wl_output != wl_output) {
xwl_window->wl_output = wl_output;
if (xwl_screen->fullscreen)
xwl_window_set_fullscreen(xwl_window);
}
}
static void
xwl_window_surface_leave(void *data,
struct wl_surface *wl_surface,
struct wl_output *wl_output)
{
struct xwl_window *xwl_window = data;
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
struct xwl_output *xwl_output = xwl_output_from_wl_output(xwl_screen, wl_output);
if (xwl_output) {
xwl_window_leave_output(xwl_window, xwl_output);
xwl_window_update_surface_scale(xwl_window);
}
if (xwl_window->wl_output == wl_output)
xwl_window->wl_output = NULL;
}
static const struct wl_surface_listener surface_listener = {
xwl_window_surface_enter,
xwl_window_surface_leave
};
static void
xdg_toplevel_handle_configure(void *data,
struct xdg_toplevel *xdg_toplevel,
int32_t width,
int32_t height,
struct wl_array *states)
{
struct xwl_window *xwl_window = data;
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
uint32_t *p;
Bool old_active = xwl_screen->active;
double scale, new_width, new_height;
/* Maintain our current size if no dimensions are requested */
if (width == 0 && height == 0)
return;
if (!xwl_screen->fullscreen) {
new_width = (double) (width * xwl_screen->global_surface_scale);
new_height = (double) (height * xwl_screen->global_surface_scale);
scale = xwl_window_get_fractional_scale_factor(xwl_window);
new_width *= scale;
new_height *= scale;
/* This will be committed by the xdg_surface.configure handler */
xwl_window_maybe_resize(xwl_window, new_width, new_height);
}
xwl_screen->active = FALSE;
wl_array_for_each (p, states) {
uint32_t state = *p;
if (state == XDG_TOPLEVEL_STATE_ACTIVATED) {
xwl_screen->active = TRUE;
break;
}
}
if (old_active != xwl_screen->active) {
if (!xwl_screen->active)
xwl_screen_lost_focus(xwl_screen);
}
}
static void
xdg_toplevel_handle_close(void *data,
struct xdg_toplevel *xdg_toplevel)
{
DebugF("Terminating on compositor request");
GiveUp(0);
}
static const struct xdg_toplevel_listener xdg_toplevel_listener = {
xdg_toplevel_handle_configure,
xdg_toplevel_handle_close,
};
static void
xwl_window_update_rootful_scale(struct xwl_window *xwl_window, double previous_scale)
{
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
double new_scale, new_width, new_height;
new_scale = xwl_window_get_fractional_scale_factor(xwl_window);
new_width = xwl_screen->width / previous_scale * new_scale;
new_height = xwl_screen->height / previous_scale * new_scale;
DebugF("XWAYLAND: Fractional scale is now %.2f (was %.2f)\n",
new_scale, previous_scale);
xwl_output_set_xscale(xwl_screen->fixed_output, new_scale);
xwl_window_maybe_resize(xwl_window, new_width, new_height);
xwl_window_check_fractional_scale_viewport(xwl_window,
xwl_screen_get_width(xwl_screen),
xwl_screen_get_height(xwl_screen));
#ifdef XWL_HAS_LIBDECOR
if (xwl_window->libdecor_frame) {
xwl_window_libdecor_set_size_limits(xwl_window);
xwl_window_update_libdecor_size(xwl_window,
NULL,
xwl_screen_get_width(xwl_screen),
xwl_screen_get_height(xwl_screen));
}
else
#endif
wl_surface_commit(xwl_window->surface);
}
static void
wp_fractional_scale_preferred_scale(void *data,
struct wp_fractional_scale_v1 *fractional_scale,
uint32_t scale_numerator)
{
struct xwl_window *xwl_window = data;
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
double previous_scale = xwl_window_get_fractional_scale_factor(xwl_window);
if (xwl_window_update_fractional_scale(xwl_window, scale_numerator)) {
if (xwl_screen->fixed_output) { /* We're running rootful */
xwl_window_update_rootful_scale(xwl_window, previous_scale);
}
}
}
static const struct wp_fractional_scale_v1_listener fractional_scale_listener = {
wp_fractional_scale_preferred_scale,
};
static Bool
xwl_create_root_surface(struct xwl_window *xwl_window)
{
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
WindowPtr window = xwl_window->toplevel;
struct wl_region *region;
#ifdef XWL_HAS_LIBDECOR
if (xwl_screen->decorate) {
xwl_window->libdecor_frame =
libdecor_decorate(xwl_screen->libdecor_context,
xwl_window->surface,
&libdecor_frame_iface,
xwl_window);
xwl_window_libdecor_set_size_limits(xwl_window);
libdecor_frame_map(xwl_window->libdecor_frame);
}
else
#endif
{
xwl_window->xdg_surface =
xdg_wm_base_get_xdg_surface(xwl_screen->xdg_wm_base, xwl_window->surface);
if (xwl_window->xdg_surface == NULL) {
ErrorF("Failed creating xdg_wm_base xdg_surface\n");
goto err_surf;
}
xwl_window->xdg_toplevel =
xdg_surface_get_toplevel(xwl_window->xdg_surface);
if (xwl_window->xdg_surface == NULL) {
ErrorF("Failed creating xdg_toplevel\n");
goto err_surf;
}
xdg_surface_add_listener(xwl_window->xdg_surface,
&xdg_surface_listener, xwl_window);
xdg_toplevel_add_listener(xwl_window->xdg_toplevel,
&xdg_toplevel_listener,
xwl_window);
}
wl_surface_add_listener(xwl_window->surface,
&surface_listener, xwl_window);
if (xwl_screen_should_use_fractional_scale(xwl_screen)) {
xwl_window->fractional_scale =
wp_fractional_scale_manager_v1_get_fractional_scale(xwl_screen->fractional_scale_manager,
xwl_window->surface);
wp_fractional_scale_v1_add_listener(xwl_window->fractional_scale,
&fractional_scale_listener, xwl_window);
}
xwl_window_rootful_update_title(xwl_window);
xwl_window_rootful_set_app_id(xwl_window);
wl_surface_commit(xwl_window->surface);
region = wl_compositor_create_region(xwl_screen->compositor);
if (region == NULL) {
ErrorF("Failed creating region\n");
goto err_surf;
}
wl_region_add(region, 0, 0,
window->drawable.width, window->drawable.height);
wl_surface_set_opaque_region(xwl_window->surface, region);
wl_region_destroy(region);
return TRUE;
err_surf:
if (xwl_window->xdg_toplevel)
xdg_toplevel_destroy(xwl_window->xdg_toplevel);
if (xwl_window->xdg_surface)
xdg_surface_destroy(xwl_window->xdg_surface);
wl_surface_destroy(xwl_window->surface);
return FALSE;
}
void
xwl_window_update_surface_window(struct xwl_window *xwl_window)
{
WindowPtr surface_window = xwl_window->toplevel;
ScreenPtr screen = surface_window->drawable.pScreen;
PixmapPtr surface_pixmap;
DamagePtr window_damage;
RegionRec damage_region;
WindowPtr window;
surface_pixmap = screen->GetWindowPixmap(surface_window);
for (window = surface_window->firstChild; window; window = window->firstChild) {
PixmapPtr window_pixmap;
if (!RegionEqual(&window->winSize, &surface_window->winSize))
break;
if (!window->mapped)
break;
/* The surface window must be top-level for its window pixmap */
window_pixmap = screen->GetWindowPixmap(window);
if (window_pixmap == surface_pixmap)
continue;
surface_pixmap = window_pixmap;
/* A descendant with alpha channel cannot be the surface window, since
* any non-opaque areas need to take the contents of ancestors into
* account.
*/
if (window->drawable.depth == 32)
continue;
if (window->redirectDraw == RedirectDrawManual &&
!xwl_present_window_redirected(window))
break;
surface_window = window;
}
if (xwl_window->surface_window == surface_window)
return;
if (xwl_window->surface_window_damage) {
if (xwl_present_maybe_unredirect_window(xwl_window->surface_window) &&
screen->SourceValidate == xwl_source_validate) {
WindowPtr toplevel = xwl_window->toplevel;
xwl_source_validate(&toplevel->drawable,
toplevel->drawable.x, toplevel->drawable.y,
toplevel->drawable.width,
toplevel->drawable.height,
IncludeInferiors);
}
if (RegionNotEmpty(xwl_window->surface_window_damage))
need_source_validate_dec(xwl_window->xwl_screen);
RegionDestroy(xwl_window->surface_window_damage);
xwl_window->surface_window_damage = NULL;
}
window_damage = window_get_damage(xwl_window->surface_window);
if (window_damage) {
RegionInit(&damage_region, NullBox, 1);
RegionCopy(&damage_region, DamageRegion(window_damage));
unregister_damage(xwl_window);
}
if (surface_window->drawable.depth != xwl_window->surface_window->drawable.depth)
xwl_window_buffers_dispose(xwl_window, FALSE);
xwl_window->surface_window = surface_window;
register_damage(xwl_window);
if (window_damage) {
RegionPtr new_region = DamageRegion(window_get_damage(surface_window));
RegionUnion(new_region, new_region, &damage_region);
RegionUninit(&damage_region);
}
}
static struct xwl_window *
ensure_surface_for_window(WindowPtr window)
{
ScreenPtr screen = window->drawable.pScreen;
struct xwl_screen *xwl_screen;
struct xwl_window *xwl_window;
WindowPtr toplevel;
xwl_window = xwl_window_from_window(window);
if (xwl_window)
return xwl_window;
xwl_screen = xwl_screen_get(screen);
if (xwl_screen->rootless) {
if (window->redirectDraw != RedirectDrawManual)
return NULL;
}
else {
if (window->parent)
return NULL;
}
xwl_window = calloc(1, sizeof *xwl_window);
if (xwl_window == NULL)
return NULL;
xwl_window->xwl_screen = xwl_screen;
xwl_window->toplevel = window;
xwl_window->surface_window = window;
xwl_window->fractional_scale_numerator = FRACTIONAL_SCALE_DENOMINATOR;
xwl_window->viewport_scale_x = 1.0;
xwl_window->viewport_scale_y = 1.0;
xwl_window->surface_scale = 1;
xorg_list_init(&xwl_window->xwl_output_list);
xwl_window->surface = wl_compositor_create_surface(xwl_screen->compositor);
if (xwl_window->surface == NULL) {
ErrorF("wl_display_create_surface failed\n");
goto err;
}
if (xwl_screen->xwayland_shell) {
xwl_window->xwayland_surface = xwayland_shell_v1_get_xwayland_surface(
xwl_screen->xwayland_shell, xwl_window->surface);
}
if (!xwl_screen->rootless && !xwl_create_root_surface(xwl_window))
goto err;
#ifdef XWL_HAS_GLAMOR
if (xwl_screen->dmabuf_protocol_version >= 4)
xwl_dmabuf_setup_feedback_for_window(xwl_window);
#endif
wl_display_flush(xwl_screen->display);
send_surface_id_event(xwl_window);
wl_surface_set_user_data(xwl_window->surface, xwl_window);
xwl_window_set_xwayland_tag(xwl_window);
compRedirectWindow(serverClient, window, CompositeRedirectManual);
dixSetPrivate(&window->devPrivates, &xwl_window_private_key, xwl_window);
xorg_list_init(&xwl_window->link_damage);
xorg_list_add(&xwl_window->link_window, &xwl_screen->window_list);
xorg_list_init(&xwl_window->frame_callback_list);
xwl_window_buffers_init(xwl_window);
xwl_window_update_surface_window(xwl_window);
xwl_window_init_allow_commits(xwl_window);
/* When a new window-manager window is realized, then the randr emulation
* props may have not been set on the managed client window yet.
*/
if (!xwl_screen->fullscreen && window_is_wm_window(window)) {
toplevel = window_get_client_toplevel(window);
if (toplevel)
xwl_output_set_window_randr_emu_props(xwl_screen, toplevel);
} else {
/* CSD or O-R toplevel window, check viewport on creation */
xwl_window_check_resolution_change_emulation(xwl_window);
}
if (xwl_screen->tearing_control_manager) {
xwl_window->tearing_control = wp_tearing_control_manager_v1_get_tearing_control(
xwl_screen->tearing_control_manager, xwl_window->surface);
}
xwl_window_set_input_region(xwl_window, wInputShape(window));
return xwl_window;
err:
free(xwl_window);
return NULL;
}
Bool
xwl_realize_window(WindowPtr window)
{
ScreenPtr screen = window->drawable.pScreen;
CompScreenPtr comp_screen = GetCompScreen(screen);
struct xwl_screen *xwl_screen;
struct xwl_window *xwl_window;
Bool ret;
xwl_screen = xwl_screen_get(screen);
screen->RealizeWindow = xwl_screen->RealizeWindow;
ret = (*screen->RealizeWindow) (window);
xwl_screen->RealizeWindow = screen->RealizeWindow;
screen->RealizeWindow = xwl_realize_window;
if (!ret)
return FALSE;
if (xwl_screen->rootless) {
/* We do not want the COW to be mapped when rootless in Xwayland */
if (window == comp_screen->pOverlayWin) {
window->mapped = FALSE;
return TRUE;
}
if (!window->parent) {
BoxRec box = {
0,
0,
xwl_screen_get_width(xwl_screen),
xwl_screen_get_height(xwl_screen)
};
RegionReset(&window->winSize, &box);
RegionNull(&window->clipList);
RegionNull(&window->borderClip);
}
}
xwl_window = ensure_surface_for_window(window);
if (!xwl_window)
return FALSE;
if (window == xwl_window->surface_window &&
!window_get_damage(window))
return register_damage(xwl_window);
return TRUE;
}
static void
xwl_surface_destroy_free_timer(struct xwl_wl_surface *xwl_wl_surface)
{
if (xwl_wl_surface->wl_surface_destroy_timer) {
TimerFree(xwl_wl_surface->wl_surface_destroy_timer);
xwl_wl_surface->wl_surface_destroy_timer = NULL;
}
}
void
xwl_window_surface_do_destroy(struct xwl_wl_surface *xwl_wl_surface)
{
wl_surface_destroy(xwl_wl_surface->wl_surface);
xorg_list_del(&xwl_wl_surface->link);
xwl_surface_destroy_free_timer(xwl_wl_surface);
free(xwl_wl_surface);
}
static CARD32
xwl_surface_destroy_callback(OsTimerPtr timer, CARD32 now, void *arg)
{
struct xwl_wl_surface *xwl_wl_surface = arg;
xwl_window_surface_do_destroy(xwl_wl_surface);
return 0;
}
static void
release_wl_surface_for_window_legacy_delay(struct xwl_window *xwl_window)
{
struct xwl_wl_surface *xwl_wl_surface;
/* If the Xserver is terminating, destroy the surface immediately */
if ((dispatchException & DE_TERMINATE) == DE_TERMINATE) {
wl_surface_destroy(xwl_window->surface);
return;
}
/* Break the wl_surface / xwl_window relationship */
wl_surface_set_user_data(xwl_window->surface, NULL);
xwl_window_clear_xwayland_tag(xwl_window);
/* Schedule the destruction later, to mitigate the race between X11
* and Wayland processing so that the compositor has the time to
* establish the association before the wl_surface is destroyed.
*/
xwl_wl_surface = XNFcallocarray(1, sizeof *xwl_wl_surface);
xwl_wl_surface->wl_surface = xwl_window->surface;
xorg_list_add(&xwl_wl_surface->link,
&xwl_window->xwl_screen->pending_wl_surface_destroy);
xwl_wl_surface->wl_surface_destroy_timer =
TimerSet(NULL, 0, DELAYED_WL_SURFACE_DESTROY,
xwl_surface_destroy_callback, xwl_wl_surface);
}
static void
release_wl_surface_for_window_shell(struct xwl_window *xwl_window)
{
xwayland_surface_v1_destroy(xwl_window->xwayland_surface);
wl_surface_destroy(xwl_window->surface);
}
static void
release_wl_surface_for_window(struct xwl_window *xwl_window)
{
if (xwl_window->xwayland_surface)
release_wl_surface_for_window_shell(xwl_window);
else
release_wl_surface_for_window_legacy_delay(xwl_window);
}
static void
xwl_window_dispose(struct xwl_window *xwl_window)
{
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
struct xwl_seat *xwl_seat;
WindowPtr window = xwl_window->toplevel;
ScreenPtr screen = xwl_screen->screen;
compUnredirectWindow(serverClient, window, CompositeRedirectManual);
xorg_list_for_each_entry(xwl_seat, &xwl_screen->seat_list, link) {
if (xwl_seat->focus_window == xwl_window)
xwl_seat->focus_window = NULL;
if (xwl_seat->tablet_focus_window == xwl_window)
xwl_seat->tablet_focus_window = NULL;
if (xwl_seat->last_focus_window == xwl_window)
xwl_seat->last_focus_window = NULL;
if (xwl_seat->cursor_confinement_window == xwl_window)
xwl_seat_unconfine_pointer(xwl_seat);
if (xwl_seat->pointer_warp_emulator &&
xwl_seat->pointer_warp_emulator->locked_window == xwl_window)
xwl_seat_destroy_pointer_warp_emulator(xwl_seat);
xwl_seat_clear_touch(xwl_seat, xwl_window);
}
if (xwl_window_has_viewport_enabled(xwl_window))
xwl_window_disable_viewport(xwl_window);
#ifdef XWL_HAS_GLAMOR
xwl_dmabuf_feedback_destroy(&xwl_window->feedback);
#ifdef GLAMOR_HAS_GBM
if (xwl_window->xwl_screen->present)
xwl_present_for_each_frame_callback(xwl_window, xwl_present_unrealize_window);
#endif /* GLAMOR_HAS_GBM */
#endif /* XWL_HAS_GLAMOR */
if (xwl_window->tearing_control)
wp_tearing_control_v1_destroy(xwl_window->tearing_control);
if (xwl_window->fractional_scale)
wp_fractional_scale_v1_destroy(xwl_window->fractional_scale);
if (xwl_window->surface_sync)
wp_linux_drm_syncobj_surface_v1_destroy(xwl_window->surface_sync);
release_wl_surface_for_window(xwl_window);
xorg_list_del(&xwl_window->link_damage);
xorg_list_del(&xwl_window->link_window);
/* Special case for the root window in rootful mode */
xwl_window_buffers_dispose(xwl_window,
(!xwl_screen->rootless && window == screen->root));
if (xwl_window->window_buffers_timer)
TimerFree(xwl_window->window_buffers_timer);
if (xwl_window->frame_callback)
wl_callback_destroy(xwl_window->frame_callback);
xwl_window_free_outputs(xwl_window);
free(xwl_window);
dixSetPrivate(&window->devPrivates, &xwl_window_private_key, NULL);
}
Bool
xwl_unrealize_window(WindowPtr window)
{
ScreenPtr screen = window->drawable.pScreen;
struct xwl_screen *xwl_screen = xwl_screen_get(screen);
struct xwl_window *xwl_window = xwl_window_get(window);
Bool ret;
if (xwl_window) {
unregister_damage(xwl_window);
xwl_window_dispose(xwl_window);
}
screen->UnrealizeWindow = xwl_screen->UnrealizeWindow;
ret = (*screen->UnrealizeWindow) (window);
xwl_screen->UnrealizeWindow = screen->UnrealizeWindow;
screen->UnrealizeWindow = xwl_unrealize_window;
return ret;
}
void
xwl_window_set_window_pixmap(WindowPtr window,
PixmapPtr pixmap)
{
ScreenPtr screen = window->drawable.pScreen;
struct xwl_screen *xwl_screen;
struct xwl_window *xwl_window;
PixmapPtr old_pixmap;
old_pixmap = (*screen->GetWindowPixmap) (window);
xwl_screen = xwl_screen_get(screen);
screen->SetWindowPixmap = xwl_screen->SetWindowPixmap;
(*screen->SetWindowPixmap) (window, pixmap);
xwl_screen->SetWindowPixmap = screen->SetWindowPixmap;
screen->SetWindowPixmap = xwl_window_set_window_pixmap;
if (!RegionNotEmpty(&window->winSize))
return;
xwl_window = ensure_surface_for_window(window);
if (!xwl_window ||
(old_pixmap->drawable.width == pixmap->drawable.width &&
old_pixmap->drawable.height == pixmap->drawable.height))
return;
xwl_window_buffers_dispose(xwl_window, FALSE);
}
Bool
xwl_change_window_attributes(WindowPtr window, unsigned long mask)
{
ScreenPtr screen = window->drawable.pScreen;
struct xwl_screen *xwl_screen = xwl_screen_get(screen);
OtherClients *others;
Bool ret;
screen->ChangeWindowAttributes = xwl_screen->ChangeWindowAttributes;
ret = (*screen->ChangeWindowAttributes) (window, mask);
xwl_screen->ChangeWindowAttributes = screen->ChangeWindowAttributes;
screen->ChangeWindowAttributes = xwl_change_window_attributes;
if (window != screen->root || !(mask & CWEventMask))
return ret;
for (others = wOtherClients(window); others; others = others->next) {
if (others->mask & (SubstructureRedirectMask | ResizeRedirectMask))
xwl_screen->wm_client_id = dixClientIdForXID(others->resource);
}
return ret;
}
void
xwl_clip_notify(WindowPtr window, int dx, int dy)
{
ScreenPtr screen = window->drawable.pScreen;
struct xwl_screen *xwl_screen = xwl_screen_get(screen);
struct xwl_window *xwl_window = xwl_window_from_window(window);
screen->ClipNotify = xwl_screen->ClipNotify;
(*screen->ClipNotify) (window, dx, dy);
xwl_screen->ClipNotify = screen->ClipNotify;
screen->ClipNotify = xwl_clip_notify;
if (xwl_window)
xwl_window_update_surface_window(xwl_window);
}
int
xwl_config_notify(WindowPtr window,
int x, int y,
int width, int height, int bw,
WindowPtr sib)
{
ScreenPtr screen = window->drawable.pScreen;
struct xwl_screen *xwl_screen;
struct xwl_window *xwl_window;
Bool size_changed;
int ret;
xwl_screen = xwl_screen_get(screen);
xwl_window = xwl_window_from_window(window);
size_changed = width != window->drawable.width || height != window->drawable.height;
if (size_changed && xwl_window && xwl_window->toplevel == window &&
screen->SourceValidate == xwl_source_validate) {
xwl_source_validate(&window->drawable, window->drawable.x, window->drawable.y,
window->drawable.width, window->drawable.height,
IncludeInferiors);
}
screen->ConfigNotify = xwl_screen->ConfigNotify;
ret = screen->ConfigNotify(window, x, y, width, height, bw, sib);
xwl_screen->ConfigNotify = screen->ConfigNotify;
screen->ConfigNotify = xwl_config_notify;
return ret;
}
void
xwl_resize_window(WindowPtr window,
int x, int y,
unsigned int width, unsigned int height,
WindowPtr sib)
{
ScreenPtr screen = window->drawable.pScreen;
struct xwl_screen *xwl_screen;
struct xwl_window *xwl_window;
xwl_screen = xwl_screen_get(screen);
xwl_window = xwl_window_from_window(window);
screen->ResizeWindow = xwl_screen->ResizeWindow;
screen->ResizeWindow(window, x, y, width, height, sib);
xwl_screen->ResizeWindow = screen->ResizeWindow;
screen->ResizeWindow = xwl_resize_window;
if (xwl_window) {
if (xwl_window_get(window) || xwl_window_is_toplevel(window))
xwl_window_check_resolution_change_emulation(xwl_window);
if (window == screen->root) {
#ifdef XWL_HAS_LIBDECOR
unsigned int decor_width, decor_height;
decor_width = width / xwl_screen->global_surface_scale;
decor_height = height / xwl_screen->global_surface_scale;
xwl_window_update_libdecor_size(xwl_window, NULL,
decor_width, decor_height);
#endif
xwl_window_check_fractional_scale_viewport(xwl_window, width, height);
}
}
}
void
xwl_move_window(WindowPtr window,
int x, int y,
WindowPtr next_sib,
VTKind kind)
{
ScreenPtr screen = window->drawable.pScreen;
struct xwl_screen *xwl_screen;
struct xwl_window *xwl_window;
xwl_screen = xwl_screen_get(screen);
xwl_window = xwl_window_from_window(window);
screen->MoveWindow = xwl_screen->MoveWindow;
(*screen->MoveWindow) (window, x, y, next_sib, kind);
xwl_screen->MoveWindow = screen->MoveWindow;
screen->MoveWindow = xwl_move_window;
if (xwl_window && (xwl_window_get(window) || xwl_window_is_toplevel(window)))
xwl_window_check_resolution_change_emulation(xwl_window);
}
static void
frame_callback(void *data,
struct wl_callback *callback,
uint32_t time)
{
struct xwl_window *xwl_window = data;
wl_callback_destroy (xwl_window->frame_callback);
xwl_window->frame_callback = NULL;
if (xwl_window->xwl_screen->present) {
xwl_present_for_each_frame_callback(xwl_window, xwl_present_frame_callback);
/* If xwl_window_create_frame_callback was called from
* xwl_present_frame_callback, need to make sure all fallback timers
* are adjusted correspondingly.
*/
if (xwl_window->frame_callback)
xwl_present_for_each_frame_callback(xwl_window, xwl_present_reset_timer);
}
}
static const struct wl_callback_listener frame_listener = {
frame_callback
};
void
xwl_window_create_frame_callback(struct xwl_window *xwl_window)
{
xwl_window->frame_callback = wl_surface_frame(xwl_window->surface);
wl_callback_add_listener(xwl_window->frame_callback, &frame_listener,
xwl_window);
/* If we get called from frame_callback, it will take care of calling
* xwl_present_reset_timer.
*/
if (xwl_window->xwl_screen->present &&
!xwl_present_entered_for_each_frame_callback())
xwl_present_for_each_frame_callback(xwl_window, xwl_present_reset_timer);
}
void
xwl_window_destroy(CallbackListPtr *pcbl, ScreenPtr pScreen, WindowPtr window)
{
struct xwl_screen *xwl_screen = xwl_screen_get(pScreen);
struct xwl_window *xwl_window = xwl_window_get(window);
if (xwl_screen->present)
xwl_present_cleanup(window);
if (xwl_window)
xwl_window_dispose(xwl_window);
}
static Bool
xwl_window_attach_buffer(struct xwl_window *xwl_window)
{
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
WindowPtr surface_window = xwl_window->surface_window;
RegionPtr region;
BoxPtr box;
struct wl_buffer *buffer;
PixmapPtr pixmap;
int i;
pixmap = xwl_window_swap_pixmap(xwl_window, TRUE);
buffer = xwl_pixmap_get_wl_buffer(pixmap);
if (!buffer) {
ErrorF("Error getting buffer\n");
return FALSE;
}
wl_surface_attach(xwl_window->surface, buffer, 0, 0);
/* Arbitrary limit to try to avoid flooding the Wayland
* connection. If we flood it too much anyway, this could
* abort in libwayland-client.
*/
region = xwl_window_get_damage_region(xwl_window);
if (RegionNumRects(region) > 256) {
box = RegionExtents(region);
xwl_surface_damage(xwl_screen, xwl_window->surface,
box->x1 + surface_window->borderWidth,
box->y1 + surface_window->borderWidth,
box->x2 - box->x1, box->y2 - box->y1);
} else {
box = RegionRects(region);
for (i = 0; i < RegionNumRects(region); i++, box++) {
xwl_surface_damage(xwl_screen, xwl_window->surface,
box->x1 + surface_window->borderWidth,
box->y1 + surface_window->borderWidth,
box->x2 - box->x1, box->y2 - box->y1);
}
}
return TRUE;
}
void
xwl_window_post_damage(struct xwl_window *xwl_window)
{
assert(!xwl_window->frame_callback);
if (!xwl_window_attach_buffer(xwl_window))
return;
xwl_window_create_frame_callback(xwl_window);
DamageEmpty(window_get_damage(xwl_window->surface_window));
}
void
xwl_window_set_input_region(struct xwl_window *xwl_window,
RegionPtr input_shape)
{
struct wl_region *region;
BoxPtr box;
int i;
if (!input_shape) {
wl_surface_set_input_region(xwl_window->surface, NULL);
return;
}
region = wl_compositor_create_region(xwl_window->xwl_screen->compositor);
box = RegionRects(input_shape);
for (i = 0; i < RegionNumRects(input_shape); ++i, ++box) {
wl_region_add(region,
box->x1,
box->y1,
box->x2 - box->x1,
box->y2 - box->y1);
}
wl_surface_set_input_region(xwl_window->surface, region);
wl_region_destroy(region);
}
Bool
xwl_window_init(void)
{
if (!dixRegisterPrivateKey(&xwl_window_private_key, PRIVATE_WINDOW, 0))
return FALSE;
if (!dixRegisterPrivateKey(&xwl_damage_private_key, PRIVATE_WINDOW, 0))
return FALSE;
return TRUE;
}
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