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do not render frames when any surface has uncommitted resizes

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Alexander Courtis 2020-07-30 13:03:40 +10:00 committed by Devin J. Pohly
parent 4e9396d9a4
commit d6a18d69c0
1 changed files with 36 additions and 4 deletions
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40
dwl.c
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@ -75,6 +75,7 @@ typedef struct {
struct wlr_xwayland_surface *xwayland_surface; struct wlr_xwayland_surface *xwayland_surface;
}; };
struct wl_listener activate; struct wl_listener activate;
struct wl_listener commit;
struct wl_listener map; struct wl_listener map;
struct wl_listener unmap; struct wl_listener unmap;
struct wl_listener destroy; struct wl_listener destroy;
@ -84,6 +85,7 @@ typedef struct {
int bw; int bw;
unsigned int tags; unsigned int tags;
int isfloating; int isfloating;
uint32_t resize; /* configure serial of a pending resize */
} Client; } Client;
typedef struct { typedef struct {
@ -442,6 +444,16 @@ cleanupmon(struct wl_listener *listener, void *data)
free(m); free(m);
} }
void
commitnotify(struct wl_listener *listener, void *data)
{
Client *c = wl_container_of(listener, c, commit);
/* mark a pending resize as completed */
if (c->resize && c->resize <= c->xdg_surface->configure_serial)
c->resize = 0;
}
void void
createkeyboard(struct wlr_input_device *device) createkeyboard(struct wlr_input_device *device)
{ {
@ -553,6 +565,8 @@ createnotify(struct wl_listener *listener, void *data)
WLR_EDGE_BOTTOM | WLR_EDGE_LEFT | WLR_EDGE_RIGHT); WLR_EDGE_BOTTOM | WLR_EDGE_LEFT | WLR_EDGE_RIGHT);
/* Listen to the various events it can emit */ /* Listen to the various events it can emit */
c->commit.notify = commitnotify;
wl_signal_add(&xdg_surface->surface->events.commit, &c->commit);
c->map.notify = maprequest; c->map.notify = maprequest;
wl_signal_add(&xdg_surface->events.map, &c->map); wl_signal_add(&xdg_surface->events.map, &c->map);
c->unmap.notify = unmapnotify; c->unmap.notify = unmapnotify;
@ -628,6 +642,8 @@ destroynotify(struct wl_listener *listener, void *data)
wl_list_remove(&c->map.link); wl_list_remove(&c->map.link);
wl_list_remove(&c->unmap.link); wl_list_remove(&c->unmap.link);
wl_list_remove(&c->destroy.link); wl_list_remove(&c->destroy.link);
if (c->type == XDGShell)
wl_list_remove(&c->commit.link);
if (c->type == X11Managed) if (c->type == X11Managed)
wl_list_remove(&c->activate.link); wl_list_remove(&c->activate.link);
free(c); free(c);
@ -1220,6 +1236,8 @@ void
rendermon(struct wl_listener *listener, void *data) rendermon(struct wl_listener *listener, void *data)
{ {
struct wlr_output *output = data; struct wlr_output *output = data;
Client *c;
int render = 1;
/* This function is called every time an output is ready to display a frame, /* This function is called every time an output is ready to display a frame,
* generally at the output's refresh rate (e.g. 60Hz). */ * generally at the output's refresh rate (e.g. 60Hz). */
@ -1228,16 +1246,30 @@ rendermon(struct wl_listener *listener, void *data)
struct timespec now; struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &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(WLR_SURFACE(c), &now);
render = 0;
}
}
/* wlr_output_attach_render makes the OpenGL context current. */ /* wlr_output_attach_render makes the OpenGL context current. */
if (!wlr_output_attach_render(m->wlr_output, NULL)) if (!wlr_output_attach_render(m->wlr_output, NULL))
return; return;
/* Begin the renderer (calls glViewport and some other GL sanity checks) */ /* 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_begin(drw, m->wlr_output->width, m->wlr_output->height);
wlr_renderer_clear(drw, rootcolor);
renderclients(m, &now); if (render)
renderindependents(output, &now); {
wlr_renderer_clear(drw, rootcolor);
renderclients(m, &now);
renderindependents(output, &now);
}
/* Hardware cursors are rendered by the GPU on a separate plane, and can be /* 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 * moved around without re-rendering what's beneath them - which is more
@ -1273,7 +1305,7 @@ resize(Client *c, int x, int y, int w, int h, int interact)
c->geom.x, c->geom.y, c->geom.x, c->geom.y,
c->geom.width - 2 * c->bw, c->geom.height - 2 * c->bw); c->geom.width - 2 * c->bw, c->geom.height - 2 * c->bw);
else else
wlr_xdg_toplevel_set_size(c->xdg_surface, c->resize = wlr_xdg_toplevel_set_size(c->xdg_surface,
c->geom.width - 2 * c->bw, c->geom.height - 2 * c->bw); c->geom.width - 2 * c->bw, c->geom.height - 2 * c->bw);
} }