semfault/dwl
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Merge branch 'main' into wlroots-next

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This commit is contained in:
Devin J. Pohly 2021-06-03 01:43:49 -05:00
parent 5dfd7cf180 c6f96d5391
commit 34521ea43b
2 changed files with 60 additions and 47 deletions
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2
README.md
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@ -38,7 +38,7 @@ Feature *non-goals* for the main codebase include:
## Building dwl ## Building dwl
dwl has only two dependencies: wlroots-git and wayland-protocols. Simply install these and run `make`. dwl has only two dependencies: wlroots-git and wayland-protocols. Simply install these (and their `-devel` versions if your distro has separate development packages) and run `make`.
To enable XWayland, you should also install xorg-xwayland and uncomment its flag in `config.mk`. To enable XWayland, you should also install xorg-xwayland and uncomment its flag in `config.mk`.

105
dwl.c
View file

@ -259,6 +259,7 @@ static void pointerfocus(Client *c, struct wlr_surface *surface,
double sx, double sy, uint32_t time); double sx, double sy, uint32_t time);
static void printstatus(void); static void printstatus(void);
static void quit(const Arg *arg); 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 render(struct wlr_surface *surface, int sx, int sy, void *data);
static void renderclients(Monitor *m, struct timespec *now); static void renderclients(Monitor *m, struct timespec *now);
static void renderlayer(struct wl_list *layer_surfaces, struct timespec *now); static void renderlayer(struct wl_list *layer_surfaces, struct timespec *now);
@ -842,11 +843,13 @@ createmon(struct wl_listener *listener, void *data)
LISTEN(&wlr_output->events.frame, &m->frame, rendermon); LISTEN(&wlr_output->events.frame, &m->frame, rendermon);
LISTEN(&wlr_output->events.destroy, &m->destroy, cleanupmon); LISTEN(&wlr_output->events.destroy, &m->destroy, cleanupmon);
wl_list_insert(&mons, &m->link);
wlr_output_enable(wlr_output, 1); wlr_output_enable(wlr_output, 1);
if (!wlr_output_commit(wlr_output)) if (!wlr_output_commit(wlr_output))
return; return;
wl_list_insert(&mons, &m->link);
printstatus();
/* Adds this to the output layout in the order it was configured in. /* Adds this to the output layout in the order it was configured in.
* *
* The output layout utility automatically adds a wl_output global to the * The output layout utility automatically adds a wl_output global to the
@ -1576,6 +1579,12 @@ quit(const Arg *arg)
wl_display_terminate(dpy); wl_display_terminate(dpy);
} }
void
quitsignal(int signo)
{
quit(NULL);
}
void void
render(struct wlr_surface *surface, int sx, int sy, void *data) render(struct wlr_surface *surface, int sx, int sy, void *data)
{ {
@ -1724,38 +1733,42 @@ rendermon(struct wl_listener *listener, void *data)
} }
} }
/* wlr_output_attach_render makes the OpenGL context current. */ /* HACK: This loop is the simplest way to handle ephemeral pageflip
if (!wlr_output_attach_render(m->wlr_output, NULL)) * failures but probably not the best. Revisit if damage tracking is
return; * added. */
do {
/* wlr_output_attach_render makes the OpenGL context current. */
if (!wlr_output_attach_render(m->wlr_output, NULL))
return;
if (render) { if (render) {
/* 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); wlr_renderer_clear(drw, rootcolor);
renderlayer(&m->layers[ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND], &now); renderlayer(&m->layers[ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND], &now);
renderlayer(&m->layers[ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM], &now); renderlayer(&m->layers[ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM], &now);
renderclients(m, &now); renderclients(m, &now);
#ifdef XWAYLAND #ifdef XWAYLAND
renderindependents(m->wlr_output, &now); renderindependents(m->wlr_output, &now);
#endif #endif
renderlayer(&m->layers[ZWLR_LAYER_SHELL_V1_LAYER_TOP], &now); renderlayer(&m->layers[ZWLR_LAYER_SHELL_V1_LAYER_TOP], &now);
renderlayer(&m->layers[ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY], &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 /* 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
* efficient. However, not all hardware supports hardware cursors. For this * efficient. However, not all hardware supports hardware cursors. For this
* reason, wlroots provides a software fallback, which we ask it to render * reason, wlroots provides a software fallback, which we ask it to render
* here. wlr_cursor handles configuring hardware vs software cursors for you, * here. wlr_cursor handles configuring hardware vs software cursors for you,
* and this function is a no-op when hardware cursors are in use. */ * and this function is a no-op when hardware cursors are in use. */
wlr_output_render_software_cursors(m->wlr_output, NULL); wlr_output_render_software_cursors(m->wlr_output, NULL);
/* Conclude rendering and swap the buffers, showing the final frame /* Conclude rendering and swap the buffers, showing the final frame
* on-screen. */ * on-screen. */
wlr_renderer_end(drw); wlr_renderer_end(drw);
} }
wlr_output_commit(m->wlr_output); } while (!wlr_output_commit(m->wlr_output));
} }
void void
@ -1786,27 +1799,9 @@ run(char *startup_cmd)
const char *socket = wl_display_add_socket_auto(dpy); const char *socket = wl_display_add_socket_auto(dpy);
if (!socket) if (!socket)
BARF("startup: display_add_socket_auto"); BARF("startup: display_add_socket_auto");
/* Start the backend. This will enumerate outputs and inputs, become the DRM
* master, etc */
if (!wlr_backend_start(backend))
BARF("startup: backend_start");
/* Now that outputs are initialized, choose initial selmon based on
* cursor position, and set default cursor image */
selmon = xytomon(cursor->x, cursor->y);
/* TODO hack to get cursor to display in its initial location (100, 100)
* instead of (0, 0) and then jumping. still may not be fully
* initialized, as the image/coordinates are not transformed for the
* monitor when displayed here */
wlr_cursor_warp_closest(cursor, NULL, cursor->x, cursor->y);
wlr_xcursor_manager_set_cursor_image(cursor_mgr, "left_ptr", cursor);
/* Set the WAYLAND_DISPLAY environment variable to our socket and run the
* startup command if requested. */
setenv("WAYLAND_DISPLAY", socket, 1); setenv("WAYLAND_DISPLAY", socket, 1);
/* Now that the socket exists, run the startup command */
if (startup_cmd) { if (startup_cmd) {
int piperw[2]; int piperw[2];
pipe(piperw); pipe(piperw);
@ -1825,6 +1820,22 @@ run(char *startup_cmd)
/* If nobody is reading the status output, don't terminate */ /* If nobody is reading the status output, don't terminate */
signal(SIGPIPE, SIG_IGN); signal(SIGPIPE, SIG_IGN);
/* Start the backend. This will enumerate outputs and inputs, become the DRM
* master, etc */
if (!wlr_backend_start(backend))
BARF("startup: backend_start");
/* Now that outputs are initialized, choose initial selmon based on
* cursor position, and set default cursor image */
selmon = xytomon(cursor->x, cursor->y);
/* TODO hack to get cursor to display in its initial location (100, 100)
* instead of (0, 0) and then jumping. still may not be fully
* initialized, as the image/coordinates are not transformed for the
* monitor when displayed here */
wlr_cursor_warp_closest(cursor, NULL, cursor->x, cursor->y);
wlr_xcursor_manager_set_cursor_image(cursor_mgr, "left_ptr", cursor);
/* Run the Wayland event loop. This does not return until you exit the /* Run the Wayland event loop. This does not return until you exit the
* compositor. Starting the backend rigged up all of the necessary event * compositor. Starting the backend rigged up all of the necessary event
* loop configuration to listen to libinput events, DRM events, generate * loop configuration to listen to libinput events, DRM events, generate
@ -1961,8 +1972,10 @@ setup(void)
* clients from the Unix socket, manging Wayland globals, and so on. */ * clients from the Unix socket, manging Wayland globals, and so on. */
dpy = wl_display_create(); dpy = wl_display_create();
/* clean up child processes immediately */ /* Set up signal handlers */
sigchld(0); sigchld(0);
signal(SIGINT, quitsignal);
signal(SIGTERM, quitsignal);
/* The backend is a wlroots feature which abstracts the underlying input and /* The backend is a wlroots feature which abstracts the underlying input and
* output hardware. The autocreate option will choose the most suitable * output hardware. The autocreate option will choose the most suitable