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-rw-r--r--backend/backend.c44
-rw-r--r--backend/wayland/backend.c23
-rw-r--r--backend/wayland/output.c24
-rw-r--r--include/backend/wayland.h22
-rw-r--r--include/wlr/backend/wayland.h19
5 files changed, 86 insertions, 46 deletions
diff --git a/backend/backend.c b/backend/backend.c
index 30ced3e8..e0c52a7e 100644
--- a/backend/backend.c
+++ b/backend/backend.c
@@ -39,13 +39,39 @@ void wlr_backend_destroy(struct wlr_backend *backend) {
free(backend);
}
+static struct wlr_backend *attempt_wl_backend(struct wl_display *display) {
+ struct wlr_backend *backend = wlr_wl_backend_create(display);
+ if (backend) {
+ int outputs = 1;
+ const char *_outputs = getenv("WLR_WL_OUTPUTS");
+ if (_outputs) {
+ char *end;
+ outputs = (int)strtol(_outputs, &end, 10);
+ if (*end) {
+ wlr_log(L_ERROR, "WLR_WL_OUTPUTS specified with invalid integer, ignoring");
+ outputs = 1;
+ } else if (outputs < 0) {
+ wlr_log(L_ERROR, "WLR_WL_OUTPUTS specified with negative outputs, ignoring");
+ outputs = 1;
+ }
+ }
+ while (outputs--) {
+ wlr_wl_output_create(backend);
+ }
+ }
+ return backend;
+}
+
struct wlr_backend *wlr_backend_autocreate(struct wl_display *display,
struct wlr_session *session) {
- // TODO: Choose the most appropriate backend for the situation
- // Attempt DRM+libinput
+ struct wlr_backend *backend;
if (getenv("WAYLAND_DISPLAY") || getenv("_WAYLAND_DISPLAY")) {
- return wlr_wl_backend_create(display, 1);
+ backend = attempt_wl_backend(display);
+ if (backend) {
+ return backend;
+ }
}
+ // Attempt DRM+libinput
struct wlr_udev *udev;
if (!(udev = wlr_udev_create(display))) {
wlr_log(L_ERROR, "Failed to start udev");
@@ -56,8 +82,8 @@ struct wlr_backend *wlr_backend_autocreate(struct wl_display *display,
wlr_log(L_ERROR, "Failed to open DRM device");
goto error_udev;
}
- struct wlr_backend *multi = wlr_multi_backend_create();
- if (!multi) {
+ backend = wlr_multi_backend_create();
+ if (!backend) {
goto error_gpu;
}
struct wlr_backend *libinput =
@@ -70,13 +96,13 @@ struct wlr_backend *wlr_backend_autocreate(struct wl_display *display,
if (!drm) {
goto error_libinput;
}
- wlr_multi_backend_add(multi, libinput);
- wlr_multi_backend_add(multi, drm);
- return multi;
+ wlr_multi_backend_add(backend, libinput);
+ wlr_multi_backend_add(backend, drm);
+ return backend;
error_libinput:
wlr_backend_destroy(libinput);
error_multi:
- wlr_backend_destroy(multi);
+ wlr_backend_destroy(backend);
error_gpu:
close(gpu);
error_udev:
diff --git a/backend/wayland/backend.c b/backend/wayland/backend.c
index 344cc35d..d1213ab7 100644
--- a/backend/wayland/backend.c
+++ b/backend/wayland/backend.c
@@ -34,7 +34,7 @@ static int dispatch_events(int fd, uint32_t mask, void *data) {
static bool wlr_wl_backend_init(struct wlr_backend_state* state) {
wlr_log(L_INFO, "Initializating wayland backend");
- state->remote_display = wl_display_connect(getenv("_WAYLAND_DISPLAY"));
+ state->remote_display = wl_display_connect(NULL);
if (!state->remote_display) {
wlr_log_errno(L_ERROR, "Could not connect to remote display");
return false;
@@ -52,11 +52,8 @@ static bool wlr_wl_backend_init(struct wlr_backend_state* state) {
}
wlr_egl_init(&state->egl, EGL_PLATFORM_WAYLAND_EXT, state->remote_display);
- for (size_t i = 0; i < state->num_outputs; ++i) {
- if(!(state->outputs[i] = wlr_wl_output_create(state, i))) {
- wlr_log_errno(L_ERROR, "Failed to create %zuth output", i);
- return false;
- }
+ for (size_t i = 0; i < state->requested_outputs; ++i) {
+ wlr_wl_output_create(state->backend);
}
struct wl_event_loop *loop = wl_display_get_event_loop(state->local_display);
@@ -75,8 +72,8 @@ static void wlr_wl_backend_destroy(struct wlr_backend_state *state) {
return;
}
- for (size_t i = 0; i < state->num_outputs; ++i) {
- wlr_output_destroy(state->outputs[i]);
+ for (size_t i = 0; i < state->outputs->length; ++i) {
+ wlr_output_destroy(state->outputs->items[i]);
}
for (size_t i = 0; state->devices && i < state->devices->length; ++i) {
@@ -101,9 +98,11 @@ static struct wlr_backend_impl backend_impl = {
.destroy = wlr_wl_backend_destroy
};
+bool wlr_backend_is_wl(struct wlr_backend *b) {
+ return b->impl == &backend_impl;
+}
-struct wlr_backend *wlr_wl_backend_create(struct wl_display *display,
- size_t num_outputs) {
+struct wlr_backend *wlr_wl_backend_create(struct wl_display *display) {
wlr_log(L_INFO, "Creating wayland backend");
struct wlr_backend_state *state = calloc(1, sizeof(struct wlr_backend_state));
@@ -123,15 +122,13 @@ struct wlr_backend *wlr_wl_backend_create(struct wl_display *display,
goto error;
}
- if (!(state->outputs = calloc(sizeof(void*), num_outputs))) {
+ if (!(state->outputs = list_create())) {
wlr_log(L_ERROR, "Could not allocate outputs list");
goto error;
}
state->local_display = display;
state->backend = backend;
- state->num_outputs = num_outputs;
-
return backend;
error:
diff --git a/backend/wayland/output.c b/backend/wayland/output.c
index 4ce6d97f..49b40ffd 100644
--- a/backend/wayland/output.c
+++ b/backend/wayland/output.c
@@ -23,7 +23,8 @@ static void surface_frame_callback(void *data, struct wl_callback *cb, uint32_t
return;
}
- wl_signal_emit(&output->output->events.frame, output->output);
+ struct wlr_output *wlr_output = output->wlr_output;
+ wl_signal_emit(&wlr_output->events.frame, wlr_output);
output->frame_callback = wl_surface_frame(output->surface);
wl_callback_add_listener(output->frame_callback, &frame_listener, output);
wl_callback_destroy(cb);
@@ -40,7 +41,7 @@ static struct wl_callback_listener frame_listener = {
static void wlr_wl_output_transform(struct wlr_output_state *output,
enum wl_output_transform transform) {
- output->output->transform = transform;
+ output->wlr_output->transform = transform;
}
static void wlr_wl_output_destroy(struct wlr_output_state *output) {
@@ -67,7 +68,7 @@ void handle_configure(void *data, struct wl_shell_surface *wl_shell_surface,
uint32_t edges, int32_t width, int32_t height){
struct wlr_output_state *ostate = data;
assert(ostate && ostate->shell_surface == wl_shell_surface);
- struct wlr_output *output = ostate->output;
+ struct wlr_output *output = ostate->wlr_output;
wl_egl_window_resize(ostate->egl_window, width, height, 0, 0);
output->width = width;
output->height = height;
@@ -85,8 +86,14 @@ static struct wl_shell_surface_listener shell_surface_listener = {
.popup_done = handle_popup_done
};
-struct wlr_output *wlr_wl_output_create(struct wlr_backend_state* backend,
- size_t id) {
+struct wlr_output *wlr_wl_output_create(struct wlr_backend *_backend) {
+ assert(wlr_backend_is_wl(_backend));
+ struct wlr_backend_state *backend = _backend->state;
+ if (!backend->remote_display) {
+ ++backend->requested_outputs;
+ return NULL;
+ }
+
struct wlr_output_state *ostate;
if (!(ostate = calloc(sizeof(struct wlr_output_state), 1))) {
wlr_log(L_ERROR, "Failed to allocate wlr_output_state");
@@ -105,11 +112,11 @@ struct wlr_output *wlr_wl_output_create(struct wlr_backend_state* backend,
wlr_output->scale = 1;
strncpy(wlr_output->make, "wayland", sizeof(wlr_output->make));
strncpy(wlr_output->model, "wayland", sizeof(wlr_output->model));
- snprintf(wlr_output->name, sizeof(wlr_output->name), "WL-%d", 1);
+ snprintf(wlr_output->name, sizeof(wlr_output->name), "WL-%zd",
+ backend->outputs->length + 1);
- ostate->id = id;
ostate->backend = backend;
- ostate->output = wlr_output;
+ ostate->wlr_output = wlr_output;
// TODO: error handling
ostate->surface = wl_compositor_create_surface(backend->compositor);
@@ -144,6 +151,7 @@ struct wlr_output *wlr_wl_output_create(struct wlr_backend_state* backend,
return false;
}
+ list_add(backend->outputs, wlr_output);
wl_signal_emit(&backend->backend->events.output_add, wlr_output);
return wlr_output;
}
diff --git a/include/backend/wayland.h b/include/backend/wayland.h
index 03667c9a..f4a0a3b4 100644
--- a/include/backend/wayland.h
+++ b/include/backend/wayland.h
@@ -11,34 +11,30 @@
struct wlr_backend_state {
/* local state */
struct wl_display *local_display;
+ struct wlr_backend *backend;
+ list_t *devices;
+ list_t *outputs;
+ struct wlr_egl egl;
+ size_t requested_outputs;
/* remote state */
struct wl_display *remote_display;
+ struct wl_event_source *remote_display_src;
struct wl_registry *registry;
struct wl_compositor *compositor;
struct wl_shell *shell;
struct wl_shm *shm;
struct wl_seat *seat;
const char *seatName;
-
- struct wlr_backend *backend;
- list_t *devices;
-
- struct wl_event_source* remote_display_src;
-
- size_t num_outputs;
- struct wlr_output **outputs;
- struct wlr_egl egl;
};
struct wlr_output_state {
- size_t id;
struct wlr_backend_state *backend;
- struct wlr_output *output;
+ struct wlr_output *wlr_output;
struct wl_surface *surface;
struct wl_shell_surface *shell_surface;
struct wl_egl_window* egl_window;
struct wl_callback* frame_callback;
- void* egl_surface;
+ void *egl_surface;
};
struct wlr_input_device_state {
@@ -47,8 +43,6 @@ struct wlr_input_device_state {
};
void wlr_wl_registry_poll(struct wlr_backend_state *backend);
-struct wlr_output *wlr_wl_output_create(struct wlr_backend_state* backend,
- size_t id);
extern const struct wl_seat_listener seat_listener;
diff --git a/include/wlr/backend/wayland.h b/include/wlr/backend/wayland.h
index 83b465c1..43a0b72e 100644
--- a/include/wlr/backend/wayland.h
+++ b/include/wlr/backend/wayland.h
@@ -4,8 +4,23 @@
#include <wayland-client.h>
#include <wayland-server.h>
#include <wlr/backend.h>
+#include <stdbool.h>
-struct wlr_backend *wlr_wl_backend_create(struct wl_display *display,
- size_t outputs);
+/**
+ * Creates a new wlr_wl_backend. This backend will be created with no outputs;
+ * you must use wlr_wl_output_create to add them.
+ */
+struct wlr_backend *wlr_wl_backend_create(struct wl_display *display);
+/**
+ * Adds a new output to this backend. You may remove outputs by destroying them.
+ * Note that if called before initializing the backend, this will return NULL
+ * and your outputs will be created during initialization (and given to you via
+ * the output_add signal).
+ */
+struct wlr_output *wlr_wl_output_create(struct wlr_backend *backend);
+/**
+ * True if the given backend is a wlr_wl_backend.
+ */
+bool wlr_backend_is_wl(struct wlr_backend *backend);
#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-20 12:38:54 +0000