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Merge pull request #3448 from emersion/swaybg-xdg-output

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swaybg fixes
This commit is contained in:
Drew DeVault 2019-01-17 08:12:53 -05:00 committed by GitHub
commit 60a16bbf41
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2 changed files with 123 additions and 54 deletions
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32
sway/config/output.c
View File

@ -229,30 +229,24 @@ void apply_output_config(struct output_config *oc, struct sway_output *output) {
terminate_swaybg(output->bg_pid); terminate_swaybg(output->bg_pid);
} }
if (oc && oc->background && config->swaybg_command) { if (oc && oc->background && config->swaybg_command) {
wlr_log(WLR_DEBUG, "Setting background for output %d to %s", wlr_log(WLR_DEBUG, "Setting background for output %s to %s",
output_i, oc->background); wlr_output->name, oc->background);
size_t len = snprintf(NULL, 0, "%s %d \"%s\" %s %s", char *const cmd[] = {
config->swaybg_command, output_i, oc->background, config->swaybg_command,
wlr_output->name,
oc->background,
oc->background_option, oc->background_option,
oc->background_fallback ? oc->background_fallback : ""); oc->background_fallback ? oc->background_fallback : NULL,
char *command = malloc(len + 1); NULL,
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 : "");
wlr_log(WLR_DEBUG, "-> %s", command);
char *const cmd[] = { "sh", "-c", command, NULL };
output->bg_pid = fork(); output->bg_pid = fork();
if (output->bg_pid == 0) { if (output->bg_pid < 0) {
wlr_log_errno(WLR_ERROR, "fork failed");
} else if (output->bg_pid == 0) {
execvp(cmd[0], cmd); execvp(cmd[0], cmd);
} else { wlr_log_errno(WLR_ERROR, "Failed to execute swaybg");
free(command);
} }
} }

143
swaybg/main.c
View File

@ -8,13 +8,16 @@
#include <wayland-client.h> #include <wayland-client.h>
#include <wlr/util/log.h> #include <wlr/util/log.h>
#include "background-image.h" #include "background-image.h"
#include "pool-buffer.h"
#include "cairo.h" #include "cairo.h"
#include "pool-buffer.h"
#include "util.h" #include "util.h"
#include "wlr-layer-shell-unstable-v1-client-protocol.h" #include "wlr-layer-shell-unstable-v1-client-protocol.h"
#include "xdg-output-unstable-v1-client-protocol.h"
struct swaybg_state;
struct swaybg_args { struct swaybg_args {
int output_idx; const char *output;
const char *path; const char *path;
enum background_mode mode; enum background_mode mode;
const char *fallback; const char *fallback;
@ -25,23 +28,33 @@ struct swaybg_context {
cairo_surface_t *image; 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 { struct swaybg_state {
const struct swaybg_args *args; const struct swaybg_args *args;
struct swaybg_context context; struct swaybg_context context;
struct wl_display *display; struct wl_display *display;
struct wl_compositor *compositor; struct wl_compositor *compositor;
struct zwlr_layer_shell_v1 *layer_shell;
struct wl_shm *shm; 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_surface *surface;
struct wl_region *input_region; struct wl_region *input_region;
struct zwlr_layer_surface_v1 *layer_surface; struct zwlr_layer_surface_v1 *layer_surface;
bool run_display; bool run_display;
uint32_t width, height; uint32_t width, height;
int32_t scale;
struct pool_buffer buffers[2]; struct pool_buffer buffers[2];
struct pool_buffer *current_buffer; struct pool_buffer *current_buffer;
}; };
@ -65,8 +78,8 @@ bool is_valid_color(const char *color) {
} }
static void render_frame(struct swaybg_state *state) { static void render_frame(struct swaybg_state *state) {
int buffer_width = state->width * state->scale, int buffer_width = state->width * state->output->scale,
buffer_height = state->height * state->scale; buffer_height = state->height * state->output->scale;
state->current_buffer = get_next_buffer(state->shm, state->current_buffer = get_next_buffer(state->shm,
state->buffers, buffer_width, buffer_height); state->buffers, buffer_width, buffer_height);
if (!state->current_buffer) { if (!state->current_buffer) {
@ -89,9 +102,9 @@ static void render_frame(struct swaybg_state *state) {
state->args->mode, buffer_width, buffer_height); 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_attach(state->surface, state->current_buffer->buffer, 0, 0);
wl_surface_damage(state->surface, 0, 0, state->width, state->height); wl_surface_damage_buffer(state->surface, 0, 0, INT32_MAX, INT32_MAX);
wl_surface_commit(state->surface); wl_surface_commit(state->surface);
} }
@ -148,10 +161,14 @@ static void output_done(void *data, struct wl_output *output) {
// Who cares // Who cares
} }
static void output_scale(void *data, struct wl_output *output, int32_t factor) { static void output_scale(void *data, struct wl_output *wl_output,
struct swaybg_state *state = data; int32_t scale) {
state->scale = factor; struct swaybg_output *output = data;
if (state->run_display) { struct swaybg_state *state = output->state;
output->scale = scale;
if (state->output == output && state->run_display) {
render_frame(state); render_frame(state);
} }
} }
@ -163,26 +180,65 @@ static const struct wl_output_listener output_listener = {
.scale = output_scale, .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, static void handle_global(void *data, struct wl_registry *registry,
uint32_t name, const char *interface, uint32_t version) { uint32_t name, const char *interface, uint32_t version) {
struct swaybg_state *state = data; struct swaybg_state *state = data;
if (strcmp(interface, wl_compositor_interface.name) == 0) { if (strcmp(interface, wl_compositor_interface.name) == 0) {
state->compositor = wl_registry_bind(registry, name, state->compositor =
&wl_compositor_interface, 3); wl_registry_bind(registry, name, &wl_compositor_interface, 4);
} else if (strcmp(interface, wl_shm_interface.name) == 0) { } else if (strcmp(interface, wl_shm_interface.name) == 0) {
state->shm = wl_registry_bind(registry, name, state->shm = wl_registry_bind(registry, name, &wl_shm_interface, 1);
&wl_shm_interface, 1);
} else if (strcmp(interface, wl_output_interface.name) == 0) { } else if (strcmp(interface, wl_output_interface.name) == 0) {
static int output_idx = 0; struct swaybg_output *output = calloc(1, sizeof(struct swaybg_output));
if (output_idx == state->args->output_idx) { output->state = state;
state->output = wl_registry_bind(registry, name, output->wl_output =
&wl_output_interface, 3); wl_registry_bind(registry, name, &wl_output_interface, 3);
wl_output_add_listener(state->output, &output_listener, state); wl_output_add_listener(output->wl_output, &output_listener, output);
} wl_list_insert(&state->outputs, &output->link);
output_idx++;
} else if (strcmp(interface, zwlr_layer_shell_v1_interface.name) == 0) { } else if (strcmp(interface, zwlr_layer_shell_v1_interface.name) == 0) {
state->layer_shell = wl_registry_bind( state->layer_shell =
registry, name, &zwlr_layer_shell_v1_interface, 1); 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) { 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); 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) { if (argc < 4 || argc > 5) {
wlr_log(WLR_ERROR, "Do not run this program manually. " 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; return 1;
} }
args.output_idx = atoi(argv[1]);
args.output = argv[1];
args.path = argv[2]; args.path = argv[2];
args.mode = parse_background_mode(argv[3]); 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); struct wl_registry *registry = wl_display_get_registry(state.display);
wl_registry_add_listener(registry, &registry_listener, &state); wl_registry_add_listener(registry, &registry_listener, &state);
wl_display_roundtrip(state.display); 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); 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); state.surface = wl_compositor_create_surface(state.compositor);
assert(state.surface); assert(state.surface);
// Empty input region
state.input_region = wl_compositor_create_region(state.compositor); state.input_region = wl_compositor_create_region(state.compositor);
assert(state.input_region); assert(state.input_region);
wl_surface_set_input_region(state.surface, 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_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"); ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND, "wallpaper");
assert(state.layer_surface); 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) { while (wl_display_dispatch(state.display) != -1 && state.run_display) {
// This space intentionally left blank // This space intentionally left blank
} }
return 0; return 0;
} }