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Merge pull request #204 from djpohly/scenegraph3

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merge scenegraph3
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Sevz 2022-03-20 12:48:15 -06:00 committed by GitHub
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3 changed files with 189 additions and 380 deletions
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9
README.md
View file

@ -19,15 +19,14 @@ dwl is not meant to provide every feature under the sun. Instead, like dwm, it s
- Various Wayland protocols
- XWayland support as provided by wlroots (can be enabled in `config.mk`)
- Zero flickering - Wayland users naturally expect that "every frame is perfect"
- Layer shell popups (used by Waybar)
- Damage tracking provided by scenegraph API
Features under consideration (possibly as patches) are:
- Protocols made trivial by wlroots
- Implement the input-inhibitor protocol to support screen lockers
- Implement the idle-inhibit protocol which lets applications such as mpv disable idle monitoring
- Layer shell popups (used by Waybar)
- Basic yes/no damage tracking to avoid needless redraws
- More in-depth damage region tracking ([which may improve power usage](https://mozillagfx.wordpress.com/2019/10/22/dramatically-reduced-power-usage-in-firefox-70-on-macos-with-core-animation/))
- Implement the input-inhibitor protocol to support screen lockers (see https://github.com/djpohly/dwl/pull/132)
- Implement the idle-inhibit protocol which lets applications such as mpv disable idle monitoring (see https://github.com/djpohly/dwl/pull/133)
- Implement the text-input and input-method protocols to support IME once ibus implements input-method v2 (see https://github.com/ibus/ibus/pull/2256 and https://github.com/djpohly/dwl/pull/12)
Feature *non-goals* for the main codebase include:

20
client.h
View file

@ -180,6 +180,26 @@ client_surface_at(Client *c, double cx, double cy, double *sx, double *sy)
return wlr_xdg_surface_surface_at(c->surface.xdg, cx, cy, sx, sy);
}
static inline void
client_min_size(Client *c, int *width, int *height)
{
struct wlr_xdg_toplevel *toplevel;
struct wlr_xdg_toplevel_state *state;
#ifdef XWAYLAND
if (client_is_x11(c)) {
struct wlr_xwayland_surface_size_hints *size_hints;
size_hints = c->surface.xwayland->size_hints;
*width = size_hints->min_width;
*height = size_hints->min_height;
return;
}
#endif
toplevel = c->surface.xdg->toplevel;
state = &toplevel->current;
*width = state->min_width;
*height = state->min_height;
}
static inline Client *
client_from_popup(struct wlr_xdg_popup *popup)
{

536
dwl.c
View file

@ -34,6 +34,7 @@
#include <wlr/types/wlr_primary_selection.h>
#include <wlr/types/wlr_primary_selection_v1.h>
#include <wlr/types/wlr_screencopy_v1.h>
#include <wlr/types/wlr_scene.h>
#include <wlr/types/wlr_server_decoration.h>
#include <wlr/types/wlr_seat.h>
#include <wlr/types/wlr_viewporter.h>
@ -61,15 +62,15 @@
#define LENGTH(X) (sizeof X / sizeof X[0])
#define END(A) ((A) + LENGTH(A))
#define TAGMASK ((1 << LENGTH(tags)) - 1)
#define ROUND(X) ((int)((X)+0.5))
#define LISTEN(E, L, H) wl_signal_add((E), ((L)->notify = (H), (L)))
/* enums */
enum { CurNormal, CurMove, CurResize }; /* cursor */
enum { XDGShell, LayerShell, X11Managed, X11Unmanaged }; /* client types */
enum { LyrBg, LyrBottom, LyrTop, LyrOverlay, LyrTile, LyrFloat, NUM_LAYERS }; /* scene layers */
#ifdef XWAYLAND
enum { NetWMWindowTypeDialog, NetWMWindowTypeSplash, NetWMWindowTypeToolbar,
NetWMWindowTypeUtility, NetLast }; /* EWMH atoms */
enum { XDGShell, X11Managed, X11Unmanaged }; /* client types */
#endif
typedef union {
@ -88,9 +89,13 @@ typedef struct {
typedef struct Monitor Monitor;
typedef struct {
/* Must be first */
unsigned int type; /* XDGShell or X11* */
struct wlr_scene_node *scene;
struct wlr_scene_rect *border[4]; /* top, bottom, left, right */
struct wlr_scene_node *scene_surface;
struct wl_list link;
struct wl_list flink;
struct wl_list slink;
union {
struct wlr_xdg_surface *xdg;
struct wlr_xwayland_surface *xwayland;
@ -104,7 +109,6 @@ typedef struct {
struct wlr_box geom, prev; /* layout-relative, includes border */
Monitor *mon;
#ifdef XWAYLAND
unsigned int type;
struct wl_listener activate;
struct wl_listener configure;
#endif
@ -132,8 +136,11 @@ typedef struct {
} Keyboard;
typedef struct {
struct wlr_layer_surface_v1 *layer_surface;
/* Must be first */
unsigned int type; /* LayerShell */
struct wlr_scene_node *scene;
struct wl_list link;
struct wlr_layer_surface_v1 *layer_surface;
struct wl_listener destroy;
struct wl_listener map;
@ -141,7 +148,6 @@ typedef struct {
struct wl_listener surface_commit;
struct wlr_box geo;
enum zwlr_layer_shell_v1_layer layer;
} LayerSurface;
typedef struct {
@ -160,6 +166,7 @@ typedef struct {
struct Monitor {
struct wl_list link;
struct wlr_output *wlr_output;
struct wlr_scene_output *scene_output;
struct wl_listener frame;
struct wl_listener destroy;
struct wlr_box m; /* monitor area, layout-relative */
@ -192,14 +199,6 @@ typedef struct {
int monitor;
} Rule;
/* Used to move all of the data necessary to render a surface from the top-level
* frame handler to the per-surface render function. */
struct render_data {
struct wlr_output *output;
struct timespec *when;
int x, y; /* layout-relative */
};
/* function declarations */
static void applybounds(Client *c, struct wlr_box *bbox);
static void applyexclusive(struct wlr_box *usable_area, uint32_t anchor,
@ -254,13 +253,9 @@ static void pointerfocus(Client *c, struct wlr_surface *surface,
static void printstatus(void);
static void quit(const Arg *arg);
static void quitsignal(int signo);
static void render(struct wlr_surface *surface, int sx, int sy, void *data);
static void renderclients(Monitor *m, struct timespec *now);
static void renderlayer(struct wl_list *layer_surfaces, struct timespec *now);
static void rendermon(struct wl_listener *listener, void *data);
static void resize(Client *c, int x, int y, int w, int h, int interact);
static void run(char *startup_cmd);
static void scalebox(struct wlr_box *box, float scale);
static Client *selclient(void);
static void setcursor(struct wl_listener *listener, void *data);
static void setpsel(struct wl_listener *listener, void *data);
@ -288,9 +283,8 @@ static void updatetitle(struct wl_listener *listener, void *data);
static void urgent(struct wl_listener *listener, void *data);
static void view(const Arg *arg);
static void virtualkeyboard(struct wl_listener *listener, void *data);
static Client *xytoclient(double x, double y);
static struct wlr_surface *xytolayersurface(struct wl_list *layer_surfaces,
double x, double y, double *sx, double *sy);
static struct wlr_scene_node *xytonode(double x, double y, struct wlr_surface **psurface,
Client **pc, LayerSurface **pl, double *nx, double *ny);
static Monitor *xytomon(double x, double y);
static void zoom(const Arg *arg);
@ -298,6 +292,8 @@ static void zoom(const Arg *arg);
static const char broken[] = "broken";
static struct wl_display *dpy;
static struct wlr_backend *backend;
static struct wlr_scene *scene;
static struct wlr_scene_node *layers[NUM_LAYERS];
static struct wlr_renderer *drw;
static struct wlr_allocator *alloc;
static struct wlr_compositor *compositor;
@ -306,8 +302,6 @@ static struct wlr_xdg_shell *xdg_shell;
static struct wlr_xdg_activation_v1 *activation;
static struct wl_list clients; /* tiling order */
static struct wl_list fstack; /* focus order */
static struct wl_list stack; /* stacking z-order */
static struct wl_list independents;
static struct wlr_idle *idle;
static struct wlr_layer_shell_v1 *layer_shell;
static struct wlr_output_manager_v1 *output_mgr;
@ -352,9 +346,7 @@ static void activatex11(struct wl_listener *listener, void *data);
static void configurex11(struct wl_listener *listener, void *data);
static void createnotifyx11(struct wl_listener *listener, void *data);
static Atom getatom(xcb_connection_t *xc, const char *name);
static void renderindependents(struct wlr_output *output, struct timespec *now);
static void xwaylandready(struct wl_listener *listener, void *data);
static Client *xytoindependent(double x, double y);
static struct wl_listener new_xwayland_surface = {.notify = createnotifyx11};
static struct wl_listener xwayland_ready = {.notify = xwaylandready};
static struct wlr_xwayland *xwayland;
@ -469,12 +461,17 @@ applyrules(Client *c)
mon = m;
}
}
wlr_scene_node_reparent(c->scene, layers[c->isfloating ? LyrFloat : LyrTile]);
setmon(c, mon, newtags);
}
void
arrange(Monitor *m)
{
Client *c;
wl_list_for_each(c, &clients, link)
wlr_scene_node_set_enabled(c->scene, VISIBLEON(c, c->mon));
if (m->lt[m->sellt]->arrange)
m->lt[m->sellt]->arrange(m);
/* TODO recheck pointer focus here... or in resize()? */
@ -553,6 +550,7 @@ arrangelayer(Monitor *m, struct wl_list *list, struct wlr_box *usable_area, int
applyexclusive(usable_area, state->anchor, state->exclusive_zone,
state->margin.top, state->margin.right,
state->margin.bottom, state->margin.left);
wlr_scene_node_set_position(layersurface->scene, box.x, box.y);
wlr_layer_surface_v1_configure(wlr_layer_surface, box.width, box.height);
}
}
@ -625,7 +623,9 @@ buttonpress(struct wl_listener *listener, void *data)
switch (event->state) {
case WLR_BUTTON_PRESSED:
/* Change focus if the button was _pressed_ over a client */
if ((c = xytoclient(cursor->x, cursor->y)))
xytonode(cursor->x, cursor->y, NULL, &c, NULL, NULL, NULL);
/* Don't focus unmanaged clients */
if (c && !client_is_unmanaged(c))
focusclient(c, 1);
keyboard = wlr_seat_get_keyboard(seat);
@ -737,18 +737,19 @@ commitlayersurfacenotify(struct wl_listener *listener, void *data)
struct wlr_output *wlr_output = wlr_layer_surface->output;
Monitor *m;
wlr_scene_node_reparent(layersurface->scene,
layers[wlr_layer_surface->current.layer]);
if (!wlr_output)
return;
m = wlr_output->data;
arrangelayers(m);
if (layersurface->layer != wlr_layer_surface->current.layer) {
if (layers[wlr_layer_surface->current.layer] != layersurface->scene) {
wl_list_remove(&layersurface->link);
wl_list_insert(&m->layers[wlr_layer_surface->current.layer],
&layersurface->link);
layersurface->layer = wlr_layer_surface->current.layer;
}
arrangelayers(m);
}
void
@ -846,8 +847,8 @@ createmon(struct wl_listener *listener, void *data)
* display, which Wayland clients can see to find out information about the
* output (such as DPI, scale factor, manufacturer, etc).
*/
wlr_output_layout_add(output_layout, wlr_output, r->x, r->y);
sgeom = *wlr_output_layout_get_box(output_layout, NULL);
m->scene_output = wlr_scene_output_create(scene, wlr_output);
wlr_output_layout_add_auto(output_layout, wlr_output);
/* If length == 1 we need update selmon.
* Maybe it will change in run(). */
@ -858,30 +859,23 @@ createmon(struct wl_listener *listener, void *data)
wl_list_for_each(c, &clients, link)
setmon(c, m, c->tags);
}
/* When adding monitors, the geometries of all monitors must be updated */
wl_list_for_each(m, &mons, link) {
/* The first monitor in the list is the most recently added */
Client *c;
wl_list_for_each(c, &clients, link) {
if (c->isfloating)
resize(c, c->geom.x + m->w.width, c->geom.y,
c->geom.width, c->geom.height, 0);
}
return;
}
}
void
createnotify(struct wl_listener *listener, void *data)
{
/* This event is raised when wlr_xdg_shell receives a new xdg surface from a
* client, either a toplevel (application window) or popup. */
* client, either a toplevel (application window) or popup,
* or when wlr_layer_shell receives a new popup from a layer.
* If you want to do something tricky with popups you should check if
* its parent is wlr_xdg_shell or wlr_layer_shell */
struct wlr_xdg_surface *xdg_surface = data;
Client *c;
if (xdg_surface->role == WLR_XDG_SURFACE_ROLE_POPUP) {
struct wlr_box box;
xdg_surface->surface->data = wlr_scene_xdg_surface_create(
xdg_surface->popup->parent->data, xdg_surface);
if (!(c = client_from_popup(xdg_surface->popup)) || !c->mon)
return;
box = c->mon->m;
@ -924,6 +918,7 @@ createlayersurface(struct wl_listener *listener, void *data)
layersurface = calloc(1, sizeof(LayerSurface));
if (!layersurface)
EBARF("layersurface: calloc");
layersurface->type = LayerShell;
LISTEN(&wlr_layer_surface->surface->events.commit,
&layersurface->surface_commit, commitlayersurfacenotify);
LISTEN(&wlr_layer_surface->events.destroy, &layersurface->destroy,
@ -935,8 +930,13 @@ createlayersurface(struct wl_listener *listener, void *data)
layersurface->layer_surface = wlr_layer_surface;
wlr_layer_surface->data = layersurface;
m = wlr_layer_surface->output->data;
layersurface->scene = wlr_layer_surface->surface->data =
wlr_scene_subsurface_tree_create(layers[wlr_layer_surface->pending.layer],
wlr_layer_surface->surface);
layersurface->scene->data = layersurface;
wl_list_insert(&m->layers[wlr_layer_surface->pending.layer],
&layersurface->link);
@ -1082,12 +1082,11 @@ focusclient(Client *c, int lift)
{
struct wlr_surface *old = seat->keyboard_state.focused_surface;
struct wlr_keyboard *kb;
int i;
/* Raise client in stacking order if requested */
if (c && lift) {
wl_list_remove(&c->slink);
wl_list_insert(&stack, &c->slink);
}
if (c && lift)
wlr_scene_node_raise_to_top(c->scene);
if (c && client_surface(c) == old)
return;
@ -1098,6 +1097,9 @@ focusclient(Client *c, int lift)
wl_list_insert(&fstack, &c->flink);
selmon = c->mon;
c->isurgent = 0;
for (i = 0; i < 4; i++)
wlr_scene_rect_set_color(c->border[i], focuscolor);
}
/* Deactivate old client if focus is changing */
@ -1117,6 +1119,12 @@ focusclient(Client *c, int lift)
))
return;
} else {
Client *w;
struct wlr_scene_node *node = old->data;
if ((w = node->data))
for (i = 0; i < 4; i++)
wlr_scene_rect_set_color(w->border[i], bordercolor);
client_activate_surface(old, 0);
}
}
@ -1313,27 +1321,44 @@ mapnotify(struct wl_listener *listener, void *data)
{
/* Called when the surface is mapped, or ready to display on-screen. */
Client *c = wl_container_of(listener, c, map);
int i;
/* Create scene tree for this client and its border */
c->scene = &wlr_scene_tree_create(layers[LyrTile])->node;
c->scene_surface = client_surface(c)->data = c->type == XDGShell
? wlr_scene_xdg_surface_create(c->scene, c->surface.xdg)
: wlr_scene_subsurface_tree_create(c->scene, client_surface(c));
c->scene_surface->data = c;
if (client_is_unmanaged(c)) {
/* Insert this independent into independents lists. */
wl_list_insert(&independents, &c->link);
client_get_geometry(c, &c->geom);
/* Floating */
wlr_scene_node_reparent(c->scene, layers[LyrFloat]);
wlr_scene_node_set_position(c->scene, c->geom.x + borderpx,
c->geom.y + borderpx);
return;
}
/* Insert this client into client lists. */
wl_list_insert(&clients, &c->link);
wl_list_insert(&fstack, &c->flink);
wl_list_insert(&stack, &c->slink);
for (i = 0; i < 4; i++) {
c->border[i] = wlr_scene_rect_create(c->scene, 0, 0, bordercolor);
c->border[i]->node.data = c;
wlr_scene_rect_set_color(c->border[i], bordercolor);
wlr_scene_node_lower_to_bottom(&c->border[i]->node);
}
/* Initialize client geometry with room for border */
client_set_tiled(c, WLR_EDGE_TOP | WLR_EDGE_BOTTOM | WLR_EDGE_LEFT | WLR_EDGE_RIGHT);
client_get_geometry(c, &c->geom);
c->geom.width += 2 * c->bw;
c->geom.height += 2 * c->bw;
/* Tell the client not to try anything fancy */
client_set_tiled(c, WLR_EDGE_TOP | WLR_EDGE_BOTTOM | WLR_EDGE_LEFT | WLR_EDGE_RIGHT);
/* Insert this client into client lists. */
wl_list_insert(&clients, &c->link);
wl_list_insert(&fstack, &c->flink);
/* Set initial monitor, tags, floating status, and focus */
applyrules(c);
resize(c, c->geom.x, c->geom.y, c->geom.width, c->geom.height, 0);
printstatus();
if (c->isfullscreen)
@ -1370,8 +1395,8 @@ void
motionnotify(uint32_t time)
{
double sx = 0, sy = 0;
struct wlr_surface *surface = NULL;
Client *c = NULL;
struct wlr_surface *surface = NULL;
/* time is 0 in internal calls meant to restore pointer focus. */
if (time) {
@ -1395,32 +1420,8 @@ motionnotify(uint32_t time)
return;
}
if ((surface = xytolayersurface(&selmon->layers[ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY],
cursor->x, cursor->y, &sx, &sy)))
;
else if ((surface = xytolayersurface(&selmon->layers[ZWLR_LAYER_SHELL_V1_LAYER_TOP],
cursor->x, cursor->y, &sx, &sy)))
;
#ifdef XWAYLAND
/* Find an independent under the pointer and send the event along. */
else if ((c = xytoindependent(cursor->x, cursor->y))) {
surface = wlr_surface_surface_at(c->surface.xwayland->surface,
cursor->x - c->surface.xwayland->x - c->bw,
cursor->y - c->surface.xwayland->y - c->bw, &sx, &sy);
/* Otherwise, find the client under the pointer and send the event along. */
}
#endif
else if ((c = xytoclient(cursor->x, cursor->y))) {
surface = client_surface_at(c, cursor->x - c->geom.x - c->bw,
cursor->y - c->geom.y - c->bw, &sx, &sy);
}
else if ((surface = xytolayersurface(&selmon->layers[ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM],
cursor->x, cursor->y, &sx, &sy)))
;
else
surface = xytolayersurface(&selmon->layers[ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND],
cursor->x, cursor->y, &sx, &sy);
/* Find the client under the pointer and send the event along. */
xytonode(cursor->x, cursor->y, &surface, &c, NULL, &sx, &sy);
/* If there's no client surface under the cursor, set the cursor image to a
* default. This is what makes the cursor image appear when you move it
@ -1449,7 +1450,10 @@ motionrelative(struct wl_listener *listener, void *data)
void
moveresize(const Arg *arg)
{
if (cursor_mode != CurNormal || !(grabc = xytoclient(cursor->x, cursor->y)))
if (cursor_mode != CurNormal)
return;
xytonode(cursor->x, cursor->y, NULL, &grabc, NULL, NULL, NULL);
if (!grabc || client_is_unmanaged(grabc))
return;
/* Float the window and tell motionnotify to grab it */
@ -1540,9 +1544,8 @@ pointerfocus(Client *c, struct wlr_surface *surface, double sx, double sy,
struct timespec now;
int internal_call = !time;
/* Use top level surface if nothing more specific given */
if (c && !surface)
surface = client_surface(c);
if (sloppyfocus && !internal_call && c && !client_is_unmanaged(c))
focusclient(c, 0);
/* If surface is NULL, clear pointer focus */
if (!surface) {
@ -1555,21 +1558,12 @@ pointerfocus(Client *c, struct wlr_surface *surface, double sx, double sy,
time = now.tv_sec * 1000 + now.tv_nsec / 1000000;
}
/* If surface is already focused, only notify of motion */
if (surface == seat->pointer_state.focused_surface) {
wlr_seat_pointer_notify_motion(seat, time, sx, sy);
return;
}
/* Otherwise, let the client know that the mouse cursor has entered one
* of its surfaces, and make keyboard focus follow if desired. */
/* Let the client know that the mouse cursor has entered one
* of its surfaces, and make keyboard focus follow if desired.
* wlroots makes this a no-op if surface is already focused */
wlr_seat_pointer_notify_enter(seat, surface, sx, sy);
wlr_seat_pointer_notify_motion(seat, time, sx, sy);
if (!c || client_is_unmanaged(c))
return;
if (sloppyfocus && !internal_call)
focusclient(c, 0);
}
void
@ -1620,205 +1614,50 @@ quitsignal(int signo)
quit(NULL);
}
void
render(struct wlr_surface *surface, int sx, int sy, void *data)
{
/* This function is called for every surface that needs to be rendered. */
struct render_data *rdata = data;
struct wlr_output *output = rdata->output;
double ox = 0, oy = 0;
struct wlr_box obox;
float matrix[9];
enum wl_output_transform transform;
/* We first obtain a wlr_texture, which is a GPU resource. wlroots
* automatically handles negotiating these with the client. The underlying
* resource could be an opaque handle passed from the client, or the client
* could have sent a pixel buffer which we copied to the GPU, or a few other
* means. You don't have to worry about this, wlroots takes care of it. */
struct wlr_texture *texture = wlr_surface_get_texture(surface);
if (!texture)
return;
/* The client has a position in layout coordinates. If you have two displays,
* one next to the other, both 1080p, a client on the rightmost display might
* have layout coordinates of 2000,100. We need to translate that to
* output-local coordinates, or (2000 - 1920). */
wlr_output_layout_output_coords(output_layout, output, &ox, &oy);
/* We also have to apply the scale factor for HiDPI outputs. This is only
* part of the puzzle, dwl does not fully support HiDPI. */
obox.x = ox + rdata->x + sx;
obox.y = oy + rdata->y + sy;
obox.width = surface->current.width;
obox.height = surface->current.height;
scalebox(&obox, output->scale);
/*
* Those familiar with OpenGL are also familiar with the role of matrices
* in graphics programming. We need to prepare a matrix to render the
* client with. wlr_matrix_project_box is a helper which takes a box with
* a desired x, y coordinates, width and height, and an output geometry,
* then prepares an orthographic projection and multiplies the necessary
* transforms to produce a model-view-projection matrix.
*
* Naturally you can do this any way you like, for example to make a 3D
* compositor.
*/
transform = wlr_output_transform_invert(surface->current.transform);
wlr_matrix_project_box(matrix, &obox, transform, 0, output->transform_matrix);
/* This takes our matrix, the texture, and an alpha, and performs the actual
* rendering on the GPU. */
wlr_render_texture_with_matrix(drw, texture, matrix, 1);
/* This lets the client know that we've displayed that frame and it can
* prepare another one now if it likes. */
wlr_surface_send_frame_done(surface, rdata->when);
wlr_presentation_surface_sampled_on_output(presentation, surface, output);
}
void
renderclients(Monitor *m, struct timespec *now)
{
Client *c, *sel = selclient();
const float *color;
double ox, oy;
int i, w, h;
struct render_data rdata;
struct wlr_box *borders;
struct wlr_surface *surface;
/* Each subsequent window we render is rendered on top of the last. Because
* our stacking list is ordered front-to-back, we iterate over it backwards. */
wl_list_for_each_reverse(c, &stack, slink) {
/* Only render visible clients which show on this monitor */
if (!VISIBLEON(c, c->mon) || !wlr_output_layout_intersects(
output_layout, m->wlr_output, &c->geom))
continue;
surface = client_surface(c);
ox = c->geom.x, oy = c->geom.y;
wlr_output_layout_output_coords(output_layout, m->wlr_output, &ox, &oy);
if (c->bw) {
w = surface->current.width;
h = surface->current.height;
borders = (struct wlr_box[4]) {
{ox, oy, w + 2 * c->bw, c->bw}, /* top */
{ox, oy + c->bw, c->bw, h}, /* left */
{ox + c->bw + w, oy + c->bw, c->bw, h}, /* right */
{ox, oy + c->bw + h, w + 2 * c->bw, c->bw}, /* bottom */
};
/* Draw window borders */
color = (c == sel) ? focuscolor : bordercolor;
for (i = 0; i < 4; i++) {
scalebox(&borders[i], m->wlr_output->scale);
wlr_render_rect(drw, &borders[i], color, m->wlr_output->transform_matrix);
}
}
/* This calls our render function for each surface among the
* xdg_surface's toplevel and popups. */
rdata.output = m->wlr_output;
rdata.when = now;
rdata.x = c->geom.x + c->bw;
rdata.y = c->geom.y + c->bw;
client_for_each_surface(c, render, &rdata);
}
}
void
renderlayer(struct wl_list *layer_surfaces, struct timespec *now)
{
LayerSurface *layersurface;
wl_list_for_each(layersurface, layer_surfaces, link) {
struct render_data rdata = {
.output = layersurface->layer_surface->output,
.when = now,
.x = layersurface->geo.x,
.y = layersurface->geo.y,
};
wlr_surface_for_each_surface(layersurface->layer_surface->surface,
render, &rdata);
}
}
void
rendermon(struct wl_listener *listener, void *data)
{
Client *c;
int render = 1;
/* This function is called every time an output is ready to display a frame,
* generally at the output's refresh rate (e.g. 60Hz). */
Monitor *m = wl_container_of(listener, m, frame);
Client *c;
int skip = 0;
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
/* Do not render if any XDG clients have an outstanding resize. */
wl_list_for_each(c, &stack, slink) {
if (c->resize) {
wlr_surface_send_frame_done(client_surface(c), &now);
render = 0;
}
}
/* HACK: This loop is the simplest way to handle ephemeral pageflip
* failures but probably not the best. Revisit if damage tracking is
* added. */
do {
/* wlr_output_attach_render makes the OpenGL context current. */
if (!wlr_output_attach_render(m->wlr_output, NULL))
/* Render if no XDG clients have an outstanding resize. */
wl_list_for_each(c, &clients, link)
skip = skip || c->resize;
if (!skip && !wlr_scene_output_commit(m->scene_output))
return;
if (render) {
/* Begin the renderer (calls glViewport and some other GL sanity checks) */
wlr_renderer_begin(drw, m->wlr_output->width, m->wlr_output->height);
wlr_renderer_clear(drw, rootcolor);
renderlayer(&m->layers[ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND], &now);
renderlayer(&m->layers[ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM], &now);
renderclients(m, &now);
#ifdef XWAYLAND
renderindependents(m->wlr_output, &now);
#endif
renderlayer(&m->layers[ZWLR_LAYER_SHELL_V1_LAYER_TOP], &now);
renderlayer(&m->layers[ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY], &now);
/* Hardware cursors are rendered by the GPU on a separate plane, and can be
* moved around without re-rendering what's beneath them - which is more
* efficient. However, not all hardware supports hardware cursors. For this
* reason, wlroots provides a software fallback, which we ask it to render
* here. wlr_cursor handles configuring hardware vs software cursors for you,
* and this function is a no-op when hardware cursors are in use. */
wlr_output_render_software_cursors(m->wlr_output, NULL);
/* Conclude rendering and swap the buffers, showing the final frame
* on-screen. */
wlr_renderer_end(drw);
}
} while (!wlr_output_commit(m->wlr_output));
/* Let clients know a frame has been rendered */
clock_gettime(CLOCK_MONOTONIC, &now);
wlr_scene_output_send_frame_done(m->scene_output, &now);
}
void
resize(Client *c, int x, int y, int w, int h, int interact)
{
/*
* Note that I took some shortcuts here. In a more fleshed-out
* compositor, you'd wait for the client to prepare a buffer at
* the new size, then commit any movement that was prepared.
*/
int min_width = 0, min_height = 0;
struct wlr_box *bbox = interact ? &sgeom : &c->mon->w;
client_min_size(c, &min_width, &min_height);
c->geom.x = x;
c->geom.y = y;
c->geom.width = w;
c->geom.height = h;
c->geom.width = MAX(min_width + 2 * c->bw, w);
c->geom.height = MAX(min_height + 2 * c->bw, h);
applybounds(c, bbox);
/* Update scene-graph, including borders */
wlr_scene_node_set_position(c->scene, c->geom.x, c->geom.y);
wlr_scene_node_set_position(c->scene_surface, c->bw, c->bw);
wlr_scene_rect_set_size(c->border[0], c->geom.width, c->bw);
wlr_scene_rect_set_size(c->border[1], c->geom.width, c->bw);
wlr_scene_rect_set_size(c->border[2], c->bw, c->geom.height - 2 * c->bw);
wlr_scene_rect_set_size(c->border[3], c->bw, c->geom.height - 2 * c->bw);
wlr_scene_node_set_position(&c->border[1]->node, 0, c->geom.height - c->bw);
wlr_scene_node_set_position(&c->border[2]->node, 0, c->bw);
wlr_scene_node_set_position(&c->border[3]->node, c->geom.width - c->bw, c->bw);
/* wlroots makes this a no-op if size hasn't changed */
c->resize = client_set_size(c, c->geom.width - 2 * c->bw,
c->geom.height - 2 * c->bw);
@ -1885,15 +1724,6 @@ run(char *startup_cmd)
}
}
void
scalebox(struct wlr_box *box, float scale)
{
box->width = ROUND((box->x + box->width) * scale) - ROUND(box->x * scale);
box->height = ROUND((box->y + box->height) * scale) - ROUND(box->y * scale);
box->x = ROUND(box->x * scale);
box->y = ROUND(box->y * scale);
}
Client *
selclient(void)
{
@ -1926,6 +1756,7 @@ void
setfloating(Client *c, int floating)
{
c->isfloating = floating;
wlr_scene_node_reparent(c->scene, layers[c->isfloating ? LyrFloat : LyrTile]);
arrange(c->mon);
printstatus();
}
@ -1973,7 +1804,7 @@ setmon(Client *c, Monitor *m, unsigned int newtags)
}
if (m) {
/* Make sure window actually overlaps with the monitor */
applybounds(c, &m->m);
resize(c, c->geom.x, c->geom.y, c->geom.width, c->geom.height, 0);
wlr_surface_send_enter(client_surface(c), m->wlr_output);
c->tags = newtags ? newtags : m->tagset[m->seltags]; /* assign tags of target monitor */
arrange(m);
@ -2026,6 +1857,15 @@ setup(void)
if (!(backend = wlr_backend_autocreate(dpy)))
BARF("couldn't create backend");
/* Initialize the scene graph used to lay out windows */
scene = wlr_scene_create();
layers[LyrBg] = &wlr_scene_tree_create(&scene->node)->node;
layers[LyrBottom] = &wlr_scene_tree_create(&scene->node)->node;
layers[LyrTile] = &wlr_scene_tree_create(&scene->node)->node;
layers[LyrFloat] = &wlr_scene_tree_create(&scene->node)->node;
layers[LyrTop] = &wlr_scene_tree_create(&scene->node)->node;
layers[LyrOverlay] = &wlr_scene_tree_create(&scene->node)->node;
/* Create a renderer with the default implementation */
if (!(drw = wlr_renderer_autocreate(backend)))
BARF("couldn't create renderer");
@ -2073,8 +1913,6 @@ setup(void)
*/
wl_list_init(&clients);
wl_list_init(&fstack);
wl_list_init(&stack);
wl_list_init(&independents);
idle = wlr_idle_create(dpy);
@ -2142,6 +1980,7 @@ setup(void)
wl_signal_add(&output_mgr->events.test, &output_mgr_test);
presentation = wlr_presentation_create(dpy, backend);
wlr_scene_set_presentation(scene, presentation);
#ifdef XWAYLAND
/*
@ -2303,13 +2142,16 @@ unmapnotify(struct wl_listener *listener, void *data)
cursor_mode = CurNormal;
grabc = NULL;
}
wl_list_remove(&c->link);
if (client_is_unmanaged(c))
return;
if (client_is_unmanaged(c)) {
wlr_scene_node_destroy(c->scene);
return;
}
wl_list_remove(&c->link);
setmon(c, NULL, 0);
wl_list_remove(&c->flink);
wl_list_remove(&c->slink);
wlr_scene_node_destroy(c->scene);
printstatus();
}
@ -2336,6 +2178,7 @@ updatemons(struct wl_listener *listener, void *data)
/* Get the effective monitor geometry to use for surfaces */
m->m = m->w = *wlr_output_layout_get_box(output_layout, m->wlr_output);
wlr_scene_output_set_position(m->scene_output, m->m.x, m->m.y);
/* Calculate the effective monitor geometry to use for clients */
arrangelayers(m);
/* Don't move clients to the left output when plugging monitors */
@ -2394,37 +2237,31 @@ virtualkeyboard(struct wl_listener *listener, void *data)
createkeyboard(device);
}
Client *
xytoclient(double x, double y)
struct wlr_scene_node *
xytonode(double x, double y, struct wlr_surface **psurface,
Client **pc, LayerSurface **pl, double *nx, double *ny)
{
/* Find the topmost visible client (if any) at point (x, y), including
* borders. This relies on stack being ordered from top to bottom. */
Client *c;
wl_list_for_each(c, &stack, slink)
if (VISIBLEON(c, c->mon) && wlr_box_contains_point(&c->geom, x, y))
return c;
return NULL;
}
struct wlr_surface *
xytolayersurface(struct wl_list *layer_surfaces, double x, double y,
double *sx, double *sy)
{
LayerSurface *layersurface;
wl_list_for_each_reverse(layersurface, layer_surfaces, link) {
struct wlr_surface *sub;
if (!layersurface->layer_surface->mapped)
continue;
sub = wlr_layer_surface_v1_surface_at(
layersurface->layer_surface,
x - layersurface->geo.x,
y - layersurface->geo.y,
sx, sy);
if (sub)
return sub;
struct wlr_scene_node *node, *pnode;
struct wlr_surface *surface = NULL;
Client *c = NULL;
LayerSurface *l = NULL;
if ((node = wlr_scene_node_at(&scene->node, x, y, nx, ny))) {
if (node->type == WLR_SCENE_NODE_SURFACE)
surface = wlr_scene_surface_from_node(node)->surface;
/* Walk the tree to find a node that knows the client */
for (pnode = node; pnode && !c; pnode = pnode->parent)
c = pnode->data;
if (c && c->type == LayerShell) {
c = NULL;
l = pnode->data;
}
return NULL;
}
if (psurface) *psurface = surface;
if (pc) *pc = c;
if (pl) *pl = l;
return node;
}
Monitor *
@ -2529,31 +2366,6 @@ getatom(xcb_connection_t *xc, const char *name)
return atom;
}
void
renderindependents(struct wlr_output *output, struct timespec *now)
{
Client *c;
struct render_data rdata;
struct wlr_box geom;
wl_list_for_each_reverse(c, &independents, link) {
geom.x = c->surface.xwayland->x;
geom.y = c->surface.xwayland->y;
geom.width = c->surface.xwayland->width;
geom.height = c->surface.xwayland->height;
/* Only render visible clients which show on this output */
if (!wlr_output_layout_intersects(output_layout, output, &geom))
continue;
rdata.output = output;
rdata.when = now;
rdata.x = c->surface.xwayland->x;
rdata.y = c->surface.xwayland->y;
wlr_surface_for_each_surface(c->surface.xwayland->surface, render, &rdata);
}
}
void
xwaylandready(struct wl_listener *listener, void *data)
{
@ -2584,28 +2396,6 @@ xwaylandready(struct wl_listener *listener, void *data)
xcb_disconnect(xc);
}
Client *
xytoindependent(double x, double y)
{
/* Find the topmost visible independent at point (x, y).
* For independents, the most recently created can be used as the "top".
* We rely on the X11 convention of unmapping unmanaged when the "owning"
* client loses focus, which ensures that unmanaged are only visible on
* the current tag. */
Client *c;
wl_list_for_each_reverse(c, &independents, link) {
struct wlr_box geom = {
.x = c->surface.xwayland->x,
.y = c->surface.xwayland->y,
.width = c->surface.xwayland->width,
.height = c->surface.xwayland->height,
};
if (wlr_box_contains_point(&geom, x, y))
return c;
}
return NULL;
}
#endif
int