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swaybg: use output names instead of output indexes

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master
emersion 6 years ago
parent 70637b40fe
commit 000b313985
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GPG Key ID: 0FDE7BE0E88F5E48
2 changed files with 119 additions and 43 deletions
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21
sway/config/output.c
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@ -229,28 +229,29 @@ void apply_output_config(struct output_config *oc, struct sway_output *output) {
terminate_swaybg(output->bg_pid);
}
if (oc && oc->background && config->swaybg_command) {
wlr_log(WLR_DEBUG, "Setting background for output %d to %s",
output_i, oc->background);
wlr_log(WLR_DEBUG, "Setting background for output %s to %s",
wlr_output->name, oc->background);
size_t len = snprintf(NULL, 0, "%s %d \"%s\" %s %s",
config->swaybg_command, output_i, oc->background,
oc->background_option,
oc->background_fallback ? oc->background_fallback : "");
size_t len = snprintf(NULL, 0, "%s \"%s\" \"%s\" %s %s",
config->swaybg_command, wlr_output->name, oc->background,
oc->background_option,
oc->background_fallback ? oc->background_fallback : "");
char *command = malloc(len + 1);
if (!command) {
wlr_log(WLR_DEBUG, "Unable to allocate swaybg command");
return;
}
snprintf(command, len + 1, "%s %d \"%s\" %s %s",
config->swaybg_command, output_i, oc->background,
oc->background_option,
oc->background_fallback ? oc->background_fallback : "");
snprintf(command, len + 1, "%s \"%s\" \"%s\" %s %s",
config->swaybg_command, wlr_output->name, oc->background,
oc->background_option,
oc->background_fallback ? oc->background_fallback : "");
wlr_log(WLR_DEBUG, "-> %s", command);
char *const cmd[] = { "sh", "-c", command, NULL };
output->bg_pid = fork();
if (output->bg_pid == 0) {
execvp(cmd[0], cmd);
wlr_log_errno(WLR_ERROR, "Failed to execute swaybg");
} else {
free(command);
}

141
swaybg/main.c
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@ -8,13 +8,16 @@
#include <wayland-client.h>
#include <wlr/util/log.h>
#include "background-image.h"
#include "pool-buffer.h"
#include "cairo.h"
#include "pool-buffer.h"
#include "util.h"
#include "wlr-layer-shell-unstable-v1-client-protocol.h"
#include "xdg-output-unstable-v1-client-protocol.h"
struct swaybg_state;
struct swaybg_args {
int output_idx;
const char *output;
const char *path;
enum background_mode mode;
const char *fallback;
@ -25,23 +28,33 @@ struct swaybg_context {
cairo_surface_t *image;
};
struct swaybg_output {
struct wl_output *wl_output;
struct zxdg_output_v1 *xdg_output;
struct swaybg_state *state;
struct wl_list link;
int32_t scale;
};
struct swaybg_state {
const struct swaybg_args *args;
struct swaybg_context context;
struct wl_display *display;
struct wl_compositor *compositor;
struct zwlr_layer_shell_v1 *layer_shell;
struct wl_shm *shm;
struct wl_list outputs;
struct zwlr_layer_shell_v1 *layer_shell;
struct zxdg_output_manager_v1 *xdg_output_manager;
struct wl_output *output;
struct swaybg_output *output;
struct wl_surface *surface;
struct wl_region *input_region;
struct zwlr_layer_surface_v1 *layer_surface;
bool run_display;
uint32_t width, height;
int32_t scale;
struct pool_buffer buffers[2];
struct pool_buffer *current_buffer;
};
@ -65,8 +78,8 @@ bool is_valid_color(const char *color) {
}
static void render_frame(struct swaybg_state *state) {
int buffer_width = state->width * state->scale,
buffer_height = state->height * state->scale;
int buffer_width = state->width * state->output->scale,
buffer_height = state->height * state->output->scale;
state->current_buffer = get_next_buffer(state->shm,
state->buffers, buffer_width, buffer_height);
if (!state->current_buffer) {
@ -89,7 +102,7 @@ static void render_frame(struct swaybg_state *state) {
state->args->mode, buffer_width, buffer_height);
}
wl_surface_set_buffer_scale(state->surface, state->scale);
wl_surface_set_buffer_scale(state->surface, state->output->scale);
wl_surface_attach(state->surface, state->current_buffer->buffer, 0, 0);
wl_surface_damage(state->surface, 0, 0, state->width, state->height);
wl_surface_commit(state->surface);
@ -148,10 +161,14 @@ static void output_done(void *data, struct wl_output *output) {
// Who cares
}
static void output_scale(void *data, struct wl_output *output, int32_t factor) {
struct swaybg_state *state = data;
state->scale = factor;
if (state->run_display) {
static void output_scale(void *data, struct wl_output *wl_output,
int32_t scale) {
struct swaybg_output *output = data;
struct swaybg_state *state = output->state;
output->scale = scale;
if (state->output == output && state->run_display) {
render_frame(state);
}
}
@ -163,26 +180,65 @@ static const struct wl_output_listener output_listener = {
.scale = output_scale,
};
static void xdg_output_handle_logical_position(void *data,
struct zxdg_output_v1 *xdg_output, int32_t x, int32_t y) {
// Who cares
}
static void xdg_output_handle_logical_size(void *data,
struct zxdg_output_v1 *xdg_output, int32_t width, int32_t height) {
// Who cares
}
static void xdg_output_handle_name(void *data,
struct zxdg_output_v1 *xdg_output, const char *name) {
struct swaybg_output *output = data;
struct swaybg_state *state = output->state;
if (strcmp(name, state->args->output) == 0) {
assert(state->output == NULL);
state->output = output;
}
}
static void xdg_output_handle_description(void *data,
struct zxdg_output_v1 *xdg_output, const char *description) {
// Who cares
}
static void xdg_output_handle_done(void *data,
struct zxdg_output_v1 *xdg_output) {
// Who cares
}
static const struct zxdg_output_v1_listener xdg_output_listener = {
.logical_position = xdg_output_handle_logical_position,
.logical_size = xdg_output_handle_logical_size,
.name = xdg_output_handle_name,
.description = xdg_output_handle_description,
.done = xdg_output_handle_done,
};
static void handle_global(void *data, struct wl_registry *registry,
uint32_t name, const char *interface, uint32_t version) {
struct swaybg_state *state = data;
if (strcmp(interface, wl_compositor_interface.name) == 0) {
state->compositor = wl_registry_bind(registry, name,
&wl_compositor_interface, 3);
state->compositor =
wl_registry_bind(registry, name, &wl_compositor_interface, 3);
} else if (strcmp(interface, wl_shm_interface.name) == 0) {
state->shm = wl_registry_bind(registry, name,
&wl_shm_interface, 1);
state->shm = wl_registry_bind(registry, name, &wl_shm_interface, 1);
} else if (strcmp(interface, wl_output_interface.name) == 0) {
static int output_idx = 0;
if (output_idx == state->args->output_idx) {
state->output = wl_registry_bind(registry, name,
&wl_output_interface, 3);
wl_output_add_listener(state->output, &output_listener, state);
}
output_idx++;
struct swaybg_output *output = calloc(1, sizeof(struct swaybg_output));
output->state = state;
output->wl_output =
wl_registry_bind(registry, name, &wl_output_interface, 3);
wl_output_add_listener(output->wl_output, &output_listener, output);
wl_list_insert(&state->outputs, &output->link);
} else if (strcmp(interface, zwlr_layer_shell_v1_interface.name) == 0) {
state->layer_shell = wl_registry_bind(
registry, name, &zwlr_layer_shell_v1_interface, 1);
state->layer_shell =
wl_registry_bind(registry, name, &zwlr_layer_shell_v1_interface, 1);
} else if (strcmp(interface, zxdg_output_manager_v1_interface.name) == 0) {
state->xdg_output_manager = wl_registry_bind(registry, name,
&zxdg_output_manager_v1_interface, 2);
}
}
@ -197,17 +253,19 @@ static const struct wl_registry_listener registry_listener = {
};
int main(int argc, const char **argv) {
struct swaybg_args args = {0};
struct swaybg_state state = {0};
state.args = &args;
wlr_log_init(WLR_DEBUG, NULL);
struct swaybg_args args = {0};
struct swaybg_state state = { .args = &args };
wl_list_init(&state.outputs);
if (argc < 4 || argc > 5) {
wlr_log(WLR_ERROR, "Do not run this program manually. "
"See man 5 sway and look for output options.");
"See `man 5 sway-output` and look for background options.");
return 1;
}
args.output_idx = atoi(argv[1]);
args.output = argv[1];
args.path = argv[2];
args.mode = parse_background_mode(argv[3]);
@ -232,20 +290,36 @@ int main(int argc, const char **argv) {
struct wl_registry *registry = wl_display_get_registry(state.display);
wl_registry_add_listener(registry, &registry_listener, &state);
wl_display_roundtrip(state.display);
assert(state.compositor && state.layer_shell && state.output && state.shm);
if (state.compositor == NULL || state.shm == NULL ||
state.layer_shell == NULL || state.xdg_output_manager == NULL) {
wlr_log(WLR_ERROR, "Missing a required Wayland interface");
return 1;
}
// Second roundtrip to get output properties
struct swaybg_output *output;
wl_list_for_each(output, &state.outputs, link) {
output->xdg_output = zxdg_output_manager_v1_get_xdg_output(
state.xdg_output_manager, output->wl_output);
zxdg_output_v1_add_listener(output->xdg_output,
&xdg_output_listener, output);
}
// Second roundtrip to get xdg_output properties
wl_display_roundtrip(state.display);
if (state.output == NULL) {
wlr_log(WLR_ERROR, "Cannot find output '%s'", args.output);
return 1;
}
state.surface = wl_compositor_create_surface(state.compositor);
assert(state.surface);
// Empty input region
state.input_region = wl_compositor_create_region(state.compositor);
assert(state.input_region);
wl_surface_set_input_region(state.surface, state.input_region);
state.layer_surface = zwlr_layer_shell_v1_get_layer_surface(
state.layer_shell, state.surface, state.output,
state.layer_shell, state.surface, state.output->wl_output,
ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND, "wallpaper");
assert(state.layer_surface);
@ -265,5 +339,6 @@ int main(int argc, const char **argv) {
while (wl_display_dispatch(state.display) != -1 && state.run_display) {
// This space intentionally left blank
}
return 0;
}

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