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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.
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include <X11/X.h>
#include <X11/Xatom.h>
#include "compositeext.h"
#include "compint.h"
#include "inputstr.h"
#include "propertyst.h"
#include "xwayland-types.h"
#include "xwayland-input.h"
#include "xwayland-present.h"
#include "xwayland-screen.h"
#include "xwayland-window.h"
#include "xwayland-window-buffers.h"
#include "xwayland-shm.h"
#include "viewporter-client-protocol.h"
#include "xdg-shell-client-protocol.h"
static DevPrivateKeyRec xwl_window_private_key;
static DevPrivateKeyRec xwl_damage_private_key;
static void
xwl_window_set_allow_commits(struct xwl_window *xwl_window, Bool allow,
const char *debug_msg)
{
xwl_window->allow_commits = allow;
DebugF("xwayland: win %d allow_commits = %d (%s)\n",
xwl_window->window->drawable.id, allow, debug_msg);
}
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");
}
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);
}
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;
}
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
damage_report(DamagePtr pDamage, RegionPtr pRegion, void *data)
{
WindowPtr window = data;
struct xwl_window *xwl_window = xwl_window_get(window);
struct xwl_screen *xwl_screen;
if (!xwl_window)
return;
xwl_screen = xwl_window->xwl_screen;
#ifdef GLAMOR_HAS_GBM
if (xwl_window->present_flipped) {
/* This damage is from a Present flip, which already committed a new
* buffer for the surface, so we don't need to do anything in response
*/
RegionEmpty(DamageRegion(pDamage));
xorg_list_del(&xwl_window->link_damage);
xwl_window->present_flipped = FALSE;
return;
}
#endif
xorg_list_add(&xwl_window->link_damage, &xwl_screen->damage_window_list);
}
static void
damage_destroy(DamagePtr pDamage, void *data)
{
}
static Bool
register_damage(WindowPtr window)
{
DamagePtr damage;
damage = DamageCreate(damage_report, damage_destroy, DamageReportNonEmpty,
FALSE, window->drawable.pScreen, window);
if (damage == NULL) {
ErrorF("Failed creating damage\n");
return FALSE;
}
DamageRegister(&window->drawable, damage);
DamageSetReportAfterOp(damage, TRUE);
dixSetPrivate(&window->devPrivates, &xwl_damage_private_key, damage);
return TRUE;
}
static void
unregister_damage(WindowPtr window)
{
DamagePtr damage;
damage = dixLookupPrivate(&window->devPrivates, &xwl_damage_private_key);
if (!damage)
return;
DamageUnregister(damage);
DamageDestroy(damage);
dixSetPrivate(&window->devPrivates, &xwl_damage_private_key, NULL);
}
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;
}
static void
xwl_window_enable_viewport(struct xwl_window *xwl_window,
struct xwl_output *xwl_output,
struct xwl_emulated_mode *emulated_mode)
{
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);
}
wp_viewport_set_source(xwl_window->viewport,
wl_fixed_from_int(0),
wl_fixed_from_int(0),
wl_fixed_from_int(emulated_mode->width),
wl_fixed_from_int(emulated_mode->height));
wp_viewport_set_destination(xwl_window->viewport,
xwl_output->width,
xwl_output->height);
xwl_window->scale_x = (float)emulated_mode->width / xwl_output->width;
xwl_window->scale_y = (float)emulated_mode->height / xwl_output->height;
}
static Bool
window_is_wm_window(WindowPtr window)
{
struct xwl_screen *xwl_screen = xwl_screen_get(window->drawable.pScreen);
return CLIENT_ID(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
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_resolution_change_emulation(xwl_screen))
return FALSE;
window = window_get_client_toplevel(xwl_window->window);
if (!window)
return FALSE;
owner = wClient(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) {
*emulated_mode_ret = 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->window->overrideRedirect &&
emulated_mode && emulated_mode->from_vidmode &&
drawable->x == 0 && drawable->y == 0 &&
drawable->width == xwl_screen->width &&
drawable->height == xwl_screen->height) {
*emulated_mode_ret = emulated_mode;
*xwl_output_ret = xwl_output;
return TRUE;
}
return FALSE;
}
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(xwl_window, xwl_output, emulated_mode);
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_is_wm_window(window))
return FALSE;
/* CSD and override-redirect toplevel windows */
if (window_get_damage(window))
return TRUE;
/* Normal toplevel client windows, reparented to a window-manager window */
return window->parent && 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->window,
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 void
send_surface_id_event(struct xwl_window *xwl_window)
{
static const char atom_name[] = "WL_SURFACE_ID";
static Atom type_atom;
DeviceIntPtr dev;
xEvent e;
if (type_atom == None)
type_atom = MakeAtom(atom_name, strlen(atom_name), TRUE);
e.u.u.type = ClientMessage;
e.u.u.detail = 32;
e.u.clientMessage.window = xwl_window->window->drawable.id;
e.u.clientMessage.u.l.type = type_atom;
e.u.clientMessage.u.l.longs0 =
wl_proxy_get_id((struct wl_proxy *) xwl_window->surface);
e.u.clientMessage.u.l.longs1 = 0;
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
xdg_surface_handle_configure(void *data,
struct xdg_surface *xdg_surface,
uint32_t serial)
{
xdg_surface_ack_configure(xdg_surface, serial);
}
static const struct xdg_surface_listener xdg_surface_listener = {
xdg_surface_handle_configure,
};
static Bool
ensure_surface_for_window(WindowPtr window)
{
ScreenPtr screen = window->drawable.pScreen;
struct xwl_screen *xwl_screen;
struct xwl_window *xwl_window;
struct wl_region *region;
WindowPtr toplevel;
if (xwl_window_from_window(window))
return TRUE;
xwl_screen = xwl_screen_get(screen);
if (xwl_screen->rootless) {
if (window->redirectDraw != RedirectDrawManual)
return TRUE;
}
else {
if (window->parent)
return TRUE;
}
xwl_window = calloc(1, sizeof *xwl_window);
if (xwl_window == NULL)
return FALSE;
xwl_window->xwl_screen = xwl_screen;
xwl_window->window = window;
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->rootless) {
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;
}
xdg_surface_add_listener(xwl_window->xdg_surface,
&xdg_surface_listener, xwl_window);
xdg_surface_get_toplevel(xwl_window->xdg_surface);
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);
}
wl_display_flush(xwl_screen->display);
send_surface_id_event(xwl_window);
wl_surface_set_user_data(xwl_window->surface, 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);
#ifdef GLAMOR_HAS_GBM
xorg_list_init(&xwl_window->frame_callback_list);
#endif
xwl_window_buffers_init(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 (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);
}
return TRUE;
err_surf:
if (xwl_window->xdg_surface)
xdg_surface_destroy(xwl_window->xdg_surface);
wl_surface_destroy(xwl_window->surface);
err:
free(xwl_window);
return FALSE;
}
Bool
xwl_realize_window(WindowPtr window)
{
ScreenPtr screen = window->drawable.pScreen;
CompScreenPtr comp_screen = GetCompScreen(screen);
struct xwl_screen *xwl_screen;
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->width, xwl_screen->height };
RegionReset(&window->winSize, &box);
RegionNull(&window->clipList);
RegionNull(&window->borderClip);
}
}
if (xwl_screen->rootless ?
(window->drawable.class == InputOutput &&
window->parent == window->drawable.pScreen->root) :
!window->parent) {
if (!register_damage(window))
return FALSE;
}
return ensure_surface_for_window(window);
}
Bool
xwl_unrealize_window(WindowPtr window)
{
ScreenPtr screen = window->drawable.pScreen;
struct xwl_screen *xwl_screen;
struct xwl_window *xwl_window;
struct xwl_seat *xwl_seat;
Bool ret;
xwl_screen = xwl_screen_get(screen);
xorg_list_for_each_entry(xwl_seat, &xwl_screen->seat_list, link) {
if (xwl_seat->focus_window && xwl_seat->focus_window->window == window)
xwl_seat->focus_window = NULL;
if (xwl_seat->tablet_focus_window && xwl_seat->tablet_focus_window->window == window)
xwl_seat->tablet_focus_window = NULL;
if (xwl_seat->last_xwindow == window)
xwl_seat->last_xwindow = NullWindow;
if (xwl_seat->cursor_confinement_window &&
xwl_seat->cursor_confinement_window->window == window)
xwl_seat_unconfine_pointer(xwl_seat);
if (xwl_seat->pointer_warp_emulator &&
xwl_seat->pointer_warp_emulator->locked_window &&
xwl_seat->pointer_warp_emulator->locked_window->window == window)
xwl_seat_destroy_pointer_warp_emulator(xwl_seat);
xwl_seat_clear_touch(xwl_seat, window);
}
compUnredirectWindow(serverClient, window, CompositeRedirectManual);
screen->UnrealizeWindow = xwl_screen->UnrealizeWindow;
ret = (*screen->UnrealizeWindow) (window);
xwl_screen->UnrealizeWindow = screen->UnrealizeWindow;
screen->UnrealizeWindow = xwl_unrealize_window;
xwl_window = xwl_window_get(window);
if (!xwl_window)
return ret;
if (xwl_window_has_viewport_enabled(xwl_window))
xwl_window_disable_viewport(xwl_window);
#ifdef GLAMOR_HAS_GBM
if (xwl_screen->present) {
struct xwl_present_window *xwl_present_window, *tmp;
xorg_list_for_each_entry_safe(xwl_present_window, tmp,
&xwl_window->frame_callback_list,
frame_callback_list) {
xwl_present_unrealize_window(xwl_present_window);
}
}
#endif
wl_surface_destroy(xwl_window->surface);
xorg_list_del(&xwl_window->link_damage);
xorg_list_del(&xwl_window->link_window);
unregister_damage(window);
xwl_window_buffers_dispose(xwl_window);
if (xwl_window->frame_callback)
wl_callback_destroy(xwl_window->frame_callback);
free(xwl_window);
dixSetPrivate(&window->devPrivates, &xwl_window_private_key, NULL);
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;
ensure_surface_for_window(window);
if (old_pixmap->drawable.width == pixmap->drawable.width &&
old_pixmap->drawable.height == pixmap->drawable.height)
return;
xwl_window = xwl_window_get(window);
if (xwl_window)
xwl_window_buffers_recycle(xwl_window);
}
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 = CLIENT_ID(others->resource);
}
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 && (xwl_window_get(window) || xwl_window_is_toplevel(window)))
xwl_window_check_resolution_change_emulation(xwl_window);
}
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;
#ifdef GLAMOR_HAS_GBM
if (xwl_window->xwl_screen->present) {
struct xwl_present_window *xwl_present_window, *tmp;
xorg_list_for_each_entry_safe(xwl_present_window, tmp,
&xwl_window->frame_callback_list,
frame_callback_list) {
xwl_present_frame_callback(xwl_present_window);
}
}
#endif
}
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);
#ifdef GLAMOR_HAS_GBM
if (xwl_window->xwl_screen->present) {
struct xwl_present_window *xwl_present_window, *tmp;
xorg_list_for_each_entry_safe(xwl_present_window, tmp,
&xwl_window->frame_callback_list,
frame_callback_list) {
xwl_present_reset_timer(xwl_present_window);
}
}
#endif
}
Bool
xwl_destroy_window(WindowPtr window)
{
ScreenPtr screen = window->drawable.pScreen;
struct xwl_screen *xwl_screen = xwl_screen_get(screen);
Bool ret;
#ifdef GLAMOR_HAS_GBM
if (xwl_screen->present)
xwl_present_cleanup(window);
#endif
screen->DestroyWindow = xwl_screen->DestroyWindow;
if (screen->DestroyWindow)
ret = screen->DestroyWindow (window);
else
ret = TRUE;
xwl_screen->DestroyWindow = screen->DestroyWindow;
screen->DestroyWindow = xwl_destroy_window;
return ret;
}
void
xwl_window_post_damage(struct xwl_window *xwl_window)
{
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
RegionPtr region;
BoxPtr box;
struct wl_buffer *buffer;
PixmapPtr pixmap;
int i;
assert(!xwl_window->frame_callback);
region = DamageRegion(window_get_damage(xwl_window->window));
pixmap = xwl_window_buffers_get_pixmap(xwl_window, region);
#ifdef XWL_HAS_GLAMOR
if (xwl_screen->glamor)
buffer = xwl_glamor_pixmap_get_wl_buffer(pixmap);
else
#endif
buffer = xwl_shm_pixmap_get_wl_buffer(pixmap);
if (!buffer) {
ErrorF("Error getting buffer\n");
return;
}
#ifdef XWL_HAS_GLAMOR
if (xwl_screen->glamor) {
if (!xwl_glamor_post_damage(xwl_window, pixmap, region)) {
ErrorF("glamor: Failed to post damage\n");
return;
}
}
#endif
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.
*/
if (RegionNumRects(region) > 256) {
box = RegionExtents(region);
xwl_surface_damage(xwl_screen, xwl_window->surface,
box->x1 + xwl_window->window->borderWidth,
box->y1 + xwl_window->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 + xwl_window->window->borderWidth,
box->y1 + xwl_window->window->borderWidth,
box->x2 - box->x1, box->y2 - box->y1);
}
}
xwl_window_create_frame_callback(xwl_window);
DamageEmpty(window_get_damage(xwl_window->window));
}
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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