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swaybg: split into standalone project 

The new upstream is https://github.com/swaywm/swaybg

This commit also refactors our use of gdk-pixbuf a bit, since the only
remaining reverse dependency is swaybar tray support.
This commit is contained in:
Drew DeVault 2019-04-25 11:23:37 -04:00 committed by Simon Ser
parent f62c755a9f
commit 236ca63419
17 changed files with 107 additions and 738 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
README.es.md
View File

@ -34,14 +34,12 @@ Instale las dependencias:
* json-c
* pango
* cairo
* gdk-pixbuf2 \*\*
* gdk-pixbuf2 (optional: system tray)
* [scdoc](https://git.sr.ht/~sircmpwn/scdoc) (optional: man pages) \*
* git \*
_\*Compile-time dep_
_\*\*opcional: necesario para swaybg_
Desde su consola, ejecute las órdenes:
meson build

4
README.fr.md
View File

@ -41,14 +41,12 @@ Installez les dépendances :
* json-c
* pango
* cairo
* gdk-pixbuf2 \*\*
* gdk-pixbuf2 (optionnel: system tray)
* [scdoc](https://git.sr.ht/~sircmpwn/scdoc) (optionnel: requis pour les pages man) \*
* git \*
_\*Requis uniquement pour la compilation_
_\*\*Optionnel: requis uniquement pour swaybg_
Exécutez ces commandes :
meson build

4
README.ja.md
View File

@ -36,14 +36,12 @@ Swayは沢山のディストリビューションで提供されています。"
* json-c
* pango
* cairo
* gdk-pixbuf2 \*\*
* gdk-pixbuf2 (システムイコンで必要です)
* [scdoc](https://git.sr.ht/~sircmpwn/scdoc) (manで必要です) \*
* git \*
_\*コンパイルの時_
_\*\*オプション: swaybgでのみ必要です_
次のコマンドを実行してください:
meson build

4
README.md
View File

@ -38,14 +38,12 @@ Install dependencies:
* json-c
* pango
* cairo
* gdk-pixbuf2 \*\*
* gdk-pixbuf2 (optional: system tray)
* [scdoc](https://git.sr.ht/~sircmpwn/scdoc) (optional: man pages) \*
* git \*
_\*Compile-time dep_
_\*\*optional: required for swaybg_
Run these commands:
meson build

4
README.pl.md
View File

@ -34,14 +34,12 @@ Zainstaluj zależności:
* json-c
* pango
* cairo
* gdk-pixbuf2 \*\*
* gdk-pixbuf2 (opcjonalnie: system tray)
* [scdoc](https://git.sr.ht/~sircmpwn/scdoc) (opcjonalnie: strony pomocy man) \*
* git \*
_\*zależności kompilacji_
_\*\*opcjonalnie: wymagane dla swaybg_
Wykonaj następujące polecenia:
meson build

4
README.uk.md
View File

@ -46,14 +46,12 @@ Sway доступний у багатьох дистрибутивах Linux (а
* json-c
* pango
* cairo
* gdk-pixbuf2 \*\*
* gdk-pixbuf2 (optional: system tray)
* [scdoc](https://git.sr.ht/~sircmpwn/scdoc) (необов'язково, необхідно для сторінок man) \*
* git \*
_\*Лише для компіляції_
_\*\*Необов'язково, необхідно для swaybg_
Виконайте ці команди:
meson build

4
README.zh-CN.md
View File

@ -35,14 +35,12 @@ Sway 在很多发行版中可用. 尝试在你的发行版中安装 "sway" 包.
* json-c
* pango
* cairo
* gdk-pixbuf2 \*\*
* gdk-pixbuf2 (可选的: system tray)
* [scdoc](https://git.sr.ht/~sircmpwn/scdoc) (可选的: man pages) \*
* git \*
_\*编译时依赖_
_\*\*可选的: swaybg 依赖_
运行这些命令:
meson build

1
client/meson.build
View File

@ -5,7 +5,6 @@ lib_sway_client = static_library(
),
dependencies: [
cairo,
gdk_pixbuf,
pango,
pangocairo,
wayland_client

100
common/background-image.c
View File

@ -2,6 +2,9 @@
#include "background-image.h"
#include "cairo.h"
#include "log.h"
#if HAVE_GDK_PIXBUF
#include <gdk-pixbuf/gdk-pixbuf.h>
#endif
enum background_mode parse_background_mode(const char *mode) {
if (strcmp(mode, "stretch") == 0) {
@ -21,6 +24,103 @@ enum background_mode parse_background_mode(const char *mode) {
return BACKGROUND_MODE_INVALID;
}
#if HAVE_GDK_PIXBUF
static cairo_surface_t* gdk_cairo_image_surface_create_from_pixbuf(
const GdkPixbuf *gdkbuf) {
int chan = gdk_pixbuf_get_n_channels(gdkbuf);
if (chan < 3) {
return NULL;
}
const guint8* gdkpix = gdk_pixbuf_read_pixels(gdkbuf);
if (!gdkpix) {
return NULL;
}
gint w = gdk_pixbuf_get_width(gdkbuf);
gint h = gdk_pixbuf_get_height(gdkbuf);
int stride = gdk_pixbuf_get_rowstride(gdkbuf);
cairo_format_t fmt = (chan == 3) ? CAIRO_FORMAT_RGB24 : CAIRO_FORMAT_ARGB32;
cairo_surface_t * cs = cairo_image_surface_create (fmt, w, h);
cairo_surface_flush (cs);
if ( !cs || cairo_surface_status(cs) != CAIRO_STATUS_SUCCESS) {
return NULL;
}
int cstride = cairo_image_surface_get_stride(cs);
unsigned char * cpix = cairo_image_surface_get_data(cs);
if (chan == 3) {
int i;
for (i = h; i; --i) {
const guint8 *gp = gdkpix;
unsigned char *cp = cpix;
const guint8* end = gp + 3*w;
while (gp < end) {
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
cp[0] = gp[2];
cp[1] = gp[1];
cp[2] = gp[0];
#else
cp[1] = gp[0];
cp[2] = gp[1];
cp[3] = gp[2];
#endif
gp += 3;
cp += 4;
}
gdkpix += stride;
cpix += cstride;
}
} else {
/* premul-color = alpha/255 * color/255 * 255 = (alpha*color)/255
* (z/255) = z/256 * 256/255 = z/256 (1 + 1/255)
* = z/256 + (z/256)/255 = (z + z/255)/256
* # recurse once
* = (z + (z + z/255)/256)/256
* = (z + z/256 + z/256/255) / 256
* # only use 16bit uint operations, loose some precision,
* # result is floored.
* -> (z + z>>8)>>8
* # add 0x80/255 = 0.5 to convert floor to round
* => (z+0x80 + (z+0x80)>>8 ) >> 8
* ------
* tested as equal to lround(z/255.0) for uint z in [0..0xfe02]
*/
#define PREMUL_ALPHA(x,a,b,z) \
G_STMT_START { z = a * b + 0x80; x = (z + (z >> 8)) >> 8; } \
G_STMT_END
int i;
for (i = h; i; --i) {
const guint8 *gp = gdkpix;
unsigned char *cp = cpix;
const guint8* end = gp + 4*w;
guint z1, z2, z3;
while (gp < end) {
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
PREMUL_ALPHA(cp[0], gp[2], gp[3], z1);
PREMUL_ALPHA(cp[1], gp[1], gp[3], z2);
PREMUL_ALPHA(cp[2], gp[0], gp[3], z3);
cp[3] = gp[3];
#else
PREMUL_ALPHA(cp[1], gp[0], gp[3], z1);
PREMUL_ALPHA(cp[2], gp[1], gp[3], z2);
PREMUL_ALPHA(cp[3], gp[2], gp[3], z3);
cp[0] = gp[3];
#endif
gp += 4;
cp += 4;
}
gdkpix += stride;
cpix += cstride;
}
#undef PREMUL_ALPHA
}
cairo_surface_mark_dirty(cs);
return cs;
}
#endif // HAVE_GDK_PIXBUF
cairo_surface_t *load_background_image(const char *path) {
cairo_surface_t *image;
#if HAVE_GDK_PIXBUF

99
common/cairo.c
View File

@ -1,9 +1,6 @@
#include <stdint.h>
#include <cairo/cairo.h>
#include "cairo.h"
#if HAVE_GDK_PIXBUF
#include <gdk-pixbuf/gdk-pixbuf.h>
#endif
void cairo_set_source_u32(cairo_t *cairo, uint32_t color) {
cairo_set_source_rgba(cairo,
@ -45,99 +42,3 @@ cairo_surface_t *cairo_image_surface_scale(cairo_surface_t *image,
cairo_destroy(cairo);
return new;
}
#if HAVE_GDK_PIXBUF
cairo_surface_t* gdk_cairo_image_surface_create_from_pixbuf(const GdkPixbuf *gdkbuf) {
int chan = gdk_pixbuf_get_n_channels(gdkbuf);
if (chan < 3) {
return NULL;
}
const guint8* gdkpix = gdk_pixbuf_read_pixels(gdkbuf);
if (!gdkpix) {
return NULL;
}
gint w = gdk_pixbuf_get_width(gdkbuf);
gint h = gdk_pixbuf_get_height(gdkbuf);
int stride = gdk_pixbuf_get_rowstride(gdkbuf);
cairo_format_t fmt = (chan == 3) ? CAIRO_FORMAT_RGB24 : CAIRO_FORMAT_ARGB32;
cairo_surface_t * cs = cairo_image_surface_create (fmt, w, h);
cairo_surface_flush (cs);
if ( !cs || cairo_surface_status(cs) != CAIRO_STATUS_SUCCESS) {
return NULL;
}
int cstride = cairo_image_surface_get_stride(cs);
unsigned char * cpix = cairo_image_surface_get_data(cs);
if (chan == 3) {
int i;
for (i = h; i; --i) {
const guint8 *gp = gdkpix;
unsigned char *cp = cpix;
const guint8* end = gp + 3*w;
while (gp < end) {
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
cp[0] = gp[2];
cp[1] = gp[1];
cp[2] = gp[0];
#else
cp[1] = gp[0];
cp[2] = gp[1];
cp[3] = gp[2];
#endif
gp += 3;
cp += 4;
}
gdkpix += stride;
cpix += cstride;
}
} else {
/* premul-color = alpha/255 * color/255 * 255 = (alpha*color)/255
* (z/255) = z/256 * 256/255 = z/256 (1 + 1/255)
* = z/256 + (z/256)/255 = (z + z/255)/256
* # recurse once
* = (z + (z + z/255)/256)/256
* = (z + z/256 + z/256/255) / 256
* # only use 16bit uint operations, loose some precision,
* # result is floored.
* -> (z + z>>8)>>8
* # add 0x80/255 = 0.5 to convert floor to round
* => (z+0x80 + (z+0x80)>>8 ) >> 8
* ------
* tested as equal to lround(z/255.0) for uint z in [0..0xfe02]
*/
#define PREMUL_ALPHA(x,a,b,z) \
G_STMT_START { z = a * b + 0x80; x = (z + (z >> 8)) >> 8; } \
G_STMT_END
int i;
for (i = h; i; --i) {
const guint8 *gp = gdkpix;
unsigned char *cp = cpix;
const guint8* end = gp + 4*w;
guint z1, z2, z3;
while (gp < end) {
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
PREMUL_ALPHA(cp[0], gp[2], gp[3], z1);
PREMUL_ALPHA(cp[1], gp[1], gp[3], z2);
PREMUL_ALPHA(cp[2], gp[0], gp[3], z3);
cp[3] = gp[3];
#else
PREMUL_ALPHA(cp[1], gp[0], gp[3], z1);
PREMUL_ALPHA(cp[2], gp[1], gp[3], z2);
PREMUL_ALPHA(cp[3], gp[2], gp[3], z3);
cp[0] = gp[3];
#endif
gp += 4;
cp += 4;
}
gdkpix += stride;
cpix += cstride;
}
#undef PREMUL_ALPHA
}
cairo_surface_mark_dirty(cs);
return cs;
}
#endif // HAVE_GDK_PIXBUF

11
include/cairo.h
View File

@ -1,13 +1,9 @@
#ifndef _SWAY_CAIRO_H
#define _SWAY_CAIRO_H
#include "config.h"
#include <stdint.h>
#include <cairo/cairo.h>
#include <wayland-client-protocol.h>
#if HAVE_GDK_PIXBUF
#include <gdk-pixbuf/gdk-pixbuf.h>
#endif
void cairo_set_source_u32(cairo_t *cairo, uint32_t color);
cairo_subpixel_order_t to_cairo_subpixel_order(enum wl_output_subpixel subpixel);
@ -15,11 +11,4 @@ cairo_subpixel_order_t to_cairo_subpixel_order(enum wl_output_subpixel subpixel)
cairo_surface_t *cairo_image_surface_scale(cairo_surface_t *image,
int width, int height);
#if HAVE_GDK_PIXBUF
cairo_surface_t* gdk_cairo_image_surface_create_from_pixbuf(
const GdkPixbuf *gdkbuf);
#endif // HAVE_GDK_PIXBUF
#endif

2
meson.build
View File

@ -107,7 +107,6 @@ if scdoc.found()
'sway/sway-input.5.scd',
'sway/sway-ipc.7.scd',
'sway/sway-output.5.scd',
'swaybg/swaybg.1.scd',
'swaymsg/swaymsg.1.scd',
'swaynag/swaynag.1.scd',
'swaynag/swaynag.5.scd',
@ -151,7 +150,6 @@ subdir('sway')
subdir('swaymsg')
subdir('client')
subdir('swaybg')
subdir('swaybar')
subdir('swaynag')

1
sway/meson.build
View File

@ -186,7 +186,6 @@ sway_sources = files(
sway_deps = [
cairo,
gdk_pixbuf,
jsonc,
libevdev,
libinput,

542
swaybg/main.c
View File

@ -1,542 +0,0 @@
#define _POSIX_C_SOURCE 200809L
#include <assert.h>
#include <ctype.h>
#include <getopt.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <wayland-client.h>
#include "background-image.h"
#include "cairo.h"
#include "log.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 wl_display *display;
struct wl_compositor *compositor;
struct wl_shm *shm;
struct zwlr_layer_shell_v1 *layer_shell;
struct zxdg_output_manager_v1 *xdg_output_manager;
struct wl_list configs; // struct swaybg_output_config::link
struct wl_list outputs; // struct swaybg_output::link
bool run_display;
};
struct swaybg_output_config {
char *output;
cairo_surface_t *image;
enum background_mode mode;
uint32_t color;
struct wl_list link;
};
struct swaybg_output {
uint32_t wl_name;
struct wl_output *wl_output;
struct zxdg_output_v1 *xdg_output;
char *name;
char *identifier;
struct swaybg_state *state;
struct swaybg_output_config *config;
struct wl_surface *surface;
struct zwlr_layer_surface_v1 *layer_surface;
struct pool_buffer buffers[2];
struct pool_buffer *current_buffer;
uint32_t width, height;
int32_t scale;
struct wl_list link;
};
bool is_valid_color(const char *color) {
int len = strlen(color);
if (len != 7 || color[0] != '#') {
sway_log(SWAY_ERROR, "%s is not a valid color for swaybg. "
"Color should be specified as #rrggbb (no alpha).", color);
return false;
}
int i;
for (i = 1; i < len; ++i) {
if (!isxdigit(color[i])) {
return false;
}
}
return true;
}
static void render_frame(struct swaybg_output *output) {
int buffer_width = output->width * output->scale,
buffer_height = output->height * output->scale;
output->current_buffer = get_next_buffer(output->state->shm,
output->buffers, buffer_width, buffer_height);
if (!output->current_buffer) {
return;
}
cairo_t *cairo = output->current_buffer->cairo;
cairo_save(cairo);
cairo_set_operator(cairo, CAIRO_OPERATOR_CLEAR);
cairo_paint(cairo);
cairo_restore(cairo);
if (output->config->mode == BACKGROUND_MODE_SOLID_COLOR) {
cairo_set_source_u32(cairo, output->config->color);
cairo_paint(cairo);
} else {
if (output->config->color) {
cairo_set_source_u32(cairo, output->config->color);
cairo_paint(cairo);
}
render_background_image(cairo, output->config->image,
output->config->mode, buffer_width, buffer_height);
}
wl_surface_set_buffer_scale(output->surface, output->scale);
wl_surface_attach(output->surface, output->current_buffer->buffer, 0, 0);
wl_surface_damage_buffer(output->surface, 0, 0, INT32_MAX, INT32_MAX);
wl_surface_commit(output->surface);
}
static void destroy_swaybg_output_config(struct swaybg_output_config *config) {
if (!config) {
return;
}
wl_list_remove(&config->link);
free(config->output);
free(config);
}
static void destroy_swaybg_output(struct swaybg_output *output) {
if (!output) {
return;
}
wl_list_remove(&output->link);
if (output->layer_surface != NULL) {
zwlr_layer_surface_v1_destroy(output->layer_surface);
}
if (output->surface != NULL) {
wl_surface_destroy(output->surface);
}
zxdg_output_v1_destroy(output->xdg_output);
wl_output_destroy(output->wl_output);
destroy_buffer(&output->buffers[0]);
destroy_buffer(&output->buffers[1]);
free(output->name);
free(output->identifier);
free(output);
}
static void layer_surface_configure(void *data,
struct zwlr_layer_surface_v1 *surface,
uint32_t serial, uint32_t width, uint32_t height) {
struct swaybg_output *output = data;
output->width = width;
output->height = height;
zwlr_layer_surface_v1_ack_configure(surface, serial);
render_frame(output);
}
static void layer_surface_closed(void *data,
struct zwlr_layer_surface_v1 *surface) {
struct swaybg_output *output = data;
sway_log(SWAY_DEBUG, "Destroying output %s (%s)",
output->name, output->identifier);
destroy_swaybg_output(output);
}
static const struct zwlr_layer_surface_v1_listener layer_surface_listener = {
.configure = layer_surface_configure,
.closed = layer_surface_closed,
};
static void output_geometry(void *data, struct wl_output *output, int32_t x,
int32_t y, int32_t width_mm, int32_t height_mm, int32_t subpixel,
const char *make, const char *model, int32_t transform) {
// Who cares
}
static void output_mode(void *data, struct wl_output *output, uint32_t flags,
int32_t width, int32_t height, int32_t refresh) {
// Who cares
}
static void output_done(void *data, struct wl_output *output) {
// Who cares
}
static void output_scale(void *data, struct wl_output *wl_output,
int32_t scale) {
struct swaybg_output *output = data;
output->scale = scale;
if (output->state->run_display && output->width > 0 && output->height > 0) {
render_frame(output);
}
}
static const struct wl_output_listener output_listener = {
.geometry = output_geometry,
.mode = output_mode,
.done = output_done,
.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 find_config(struct swaybg_output *output, const char *name) {
struct swaybg_output_config *config = NULL;
wl_list_for_each(config, &output->state->configs, link) {
if (strcmp(config->output, name) == 0) {
output->config = config;
return;
} else if (!output->config && strcmp(config->output, "*") == 0) {
output->config = config;
}
}
}
static void xdg_output_handle_name(void *data,
struct zxdg_output_v1 *xdg_output, const char *name) {
struct swaybg_output *output = data;
output->name = strdup(name);
// If description was sent first, the config may already be populated. If
// there is an identifier config set, keep it.
if (!output->config || strcmp(output->config->output, "*") == 0) {
find_config(output, name);
}
}
static void xdg_output_handle_description(void *data,
struct zxdg_output_v1 *xdg_output, const char *description) {
struct swaybg_output *output = data;
// wlroots currently sets the description to `make model serial (name)`
// If this changes in the future, this will need to be modified.
char *paren = strrchr(description, '(');
if (paren) {
size_t length = paren - description;
output->identifier = malloc(length);
if (!output->identifier) {
sway_log(SWAY_ERROR, "Failed to allocate output identifier");
return;
}
strncpy(output->identifier, description, length);
output->identifier[length - 1] = '\0';
find_config(output, output->identifier);
}
}
static void create_layer_surface(struct swaybg_output *output) {
output->surface = wl_compositor_create_surface(output->state->compositor);
assert(output->surface);
// Empty input region
struct wl_region *input_region =
wl_compositor_create_region(output->state->compositor);
assert(input_region);
wl_surface_set_input_region(output->surface, input_region);
wl_region_destroy(input_region);
output->layer_surface = zwlr_layer_shell_v1_get_layer_surface(
output->state->layer_shell, output->surface, output->wl_output,
ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND, "wallpaper");
assert(output->layer_surface);
zwlr_layer_surface_v1_set_size(output->layer_surface, 0, 0);
zwlr_layer_surface_v1_set_anchor(output->layer_surface,
ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP |
ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT |
ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM |
ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT);
zwlr_layer_surface_v1_set_exclusive_zone(output->layer_surface, -1);
zwlr_layer_surface_v1_add_listener(output->layer_surface,
&layer_surface_listener, output);
wl_surface_commit(output->surface);
}
static void xdg_output_handle_done(void *data,
struct zxdg_output_v1 *xdg_output) {
struct swaybg_output *output = data;
if (!output->config) {
sway_log(SWAY_DEBUG, "Could not find config for output %s (%s)",
output->name, output->identifier);
destroy_swaybg_output(output);
} else if (!output->layer_surface) {
sway_log(SWAY_DEBUG, "Found config %s for output %s (%s)",
output->config->output, output->name, output->identifier);
create_layer_surface(output);
}
}
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, 4);
} else if (strcmp(interface, wl_shm_interface.name) == 0) {
state->shm = wl_registry_bind(registry, name, &wl_shm_interface, 1);
} else if (strcmp(interface, wl_output_interface.name) == 0) {
struct swaybg_output *output = calloc(1, sizeof(struct swaybg_output));
output->state = state;
output->wl_name = name;
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);
if (state->run_display) {
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);
}
} 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);
} 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);
}
}
static void handle_global_remove(void *data, struct wl_registry *registry,
uint32_t name) {
struct swaybg_state *state = data;
struct swaybg_output *output, *tmp;
wl_list_for_each_safe(output, tmp, &state->outputs, link) {
if (output->wl_name == name) {
sway_log(SWAY_DEBUG, "Destroying output %s (%s)",
output->name, output->identifier);
destroy_swaybg_output(output);
break;
}
}
}
static const struct wl_registry_listener registry_listener = {
.global = handle_global,
.global_remove = handle_global_remove,
};
static bool store_swaybg_output_config(struct swaybg_state *state,
struct swaybg_output_config *config) {
struct swaybg_output_config *oc = NULL;
wl_list_for_each(oc, &state->configs, link) {
if (strcmp(config->output, oc->output) == 0) {
// Merge on top
if (config->image) {
free(oc->image);
oc->image = config->image;
config->image = NULL;
}
if (config->color) {
oc->color = config->color;
}
if (config->mode != BACKGROUND_MODE_INVALID) {
oc->mode = config->mode;
}
return false;
}
}
// New config, just add it
wl_list_insert(&state->configs, &config->link);
return true;
}
static void parse_command_line(int argc, char **argv,
struct swaybg_state *state) {
static struct option long_options[] = {
{"color", required_argument, NULL, 'c'},
{"help", no_argument, NULL, 'h'},
{"image", required_argument, NULL, 'i'},
{"mode", required_argument, NULL, 'm'},
{"output", required_argument, NULL, 'o'},
{"version", no_argument, NULL, 'v'},
{0, 0, 0, 0}
};
const char *usage =
"Usage: swaybg <options...>\n"
"\n"
" -c, --color Set the background color.\n"
" -h, --help Show help message and quit.\n"
" -i, --image Set the image to display.\n"
" -m, --mode Set the mode to use for the image.\n"
" -o, --output Set the output to operate on or * for all.\n"
" -v, --version Show the version number and quit.\n"
"\n"
"Background Modes:\n"
" stretch, fit, fill, center, tile, or solid_color\n";
struct swaybg_output_config *config = NULL;
int c;
while (1) {
int option_index = 0;
c = getopt_long(argc, argv, "c:hi:m:o:v", long_options, &option_index);
if (c == -1) {
break;
}
switch (c) {
case 'c': // color
if (!config) {
goto no_output;
}
if (!is_valid_color(optarg)) {
sway_log(SWAY_ERROR, "Invalid color: %s", optarg);
continue;
}
config->color = parse_color(optarg);
break;
case 'i': // image
if (!config) {
goto no_output;
}
free(config->image);
config->image = load_background_image(optarg);
if (!config->image) {
sway_log(SWAY_ERROR, "Failed to load image: %s", optarg);
}
break;
case 'm': // mode
if (!config) {
goto no_output;
}
config->mode = parse_background_mode(optarg);
if (config->mode == BACKGROUND_MODE_INVALID) {
sway_log(SWAY_ERROR, "Invalid mode: %s", optarg);
}
break;
case 'o': // output
if (config && !store_swaybg_output_config(state, config)) {
// Empty config or merged on top of an existing one
destroy_swaybg_output_config(config);
}
config = calloc(sizeof(struct swaybg_output_config), 1);
config->output = strdup(optarg);
config->mode = BACKGROUND_MODE_INVALID;
wl_list_init(&config->link); // init for safe removal
break;
case 'v': // version
fprintf(stdout, "swaybg version " SWAY_VERSION "\n");
exit(EXIT_SUCCESS);
break;
default:
fprintf(c == 'h' ? stdout : stderr, "%s", usage);
exit(c == 'h' ? EXIT_SUCCESS : EXIT_FAILURE);
}
}
if (config && !store_swaybg_output_config(state, config)) {
// Empty config or merged on top of an existing one
destroy_swaybg_output_config(config);
}
// Check for invalid options
if (optind < argc) {
config = NULL;
struct swaybg_output_config *tmp = NULL;
wl_list_for_each_safe(config, tmp, &state->configs, link) {
destroy_swaybg_output_config(config);
}
// continue into empty list
}
if (wl_list_empty(&state->configs)) {
fprintf(stderr, "%s", usage);
exit(EXIT_FAILURE);
}
// Set default mode and remove empties
config = NULL;
struct swaybg_output_config *tmp = NULL;
wl_list_for_each_safe(config, tmp, &state->configs, link) {
if (!config->image && !config->color) {
destroy_swaybg_output_config(config);
} else if (config->mode == BACKGROUND_MODE_INVALID) {
config->mode = config->image
? BACKGROUND_MODE_STRETCH
: BACKGROUND_MODE_SOLID_COLOR;
}
}
return;
no_output:
fprintf(stderr, "Cannot operate on NULL output config\n");
exit(EXIT_FAILURE);
}
int main(int argc, char **argv) {
sway_log_init(SWAY_DEBUG, NULL);
struct swaybg_state state = {0};
wl_list_init(&state.configs);
wl_list_init(&state.outputs);
parse_command_line(argc, argv, &state);
state.display = wl_display_connect(NULL);
if (!state.display) {
sway_log(SWAY_ERROR, "Unable to connect to the compositor. "
"If your compositor is running, check or set the "
"WAYLAND_DISPLAY environment variable.");
return 1;
}
struct wl_registry *registry = wl_display_get_registry(state.display);
wl_registry_add_listener(registry, &registry_listener, &state);
wl_display_roundtrip(state.display);
if (state.compositor == NULL || state.shm == NULL ||
state.layer_shell == NULL || state.xdg_output_manager == NULL) {
sway_log(SWAY_ERROR, "Missing a required Wayland interface");
return 1;
}
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);
}
state.run_display = true;
while (wl_display_dispatch(state.display) != -1 && state.run_display) {
// This space intentionally left blank
}
struct swaybg_output *tmp_output;
wl_list_for_each_safe(output, tmp_output, &state.outputs, link) {
destroy_swaybg_output(output);
}
struct swaybg_output_config *config = NULL, *tmp_config = NULL;
wl_list_for_each_safe(config, tmp_config, &state.configs, link) {
destroy_swaybg_output_config(config);
}
return 0;
}

16
swaybg/meson.build
View File

@ -1,16 +0,0 @@
executable(
'swaybg',
'main.c',
include_directories: [sway_inc],
dependencies: [
cairo,
client_protos,
gdk_pixbuf,
jsonc,
pango,
pangocairo,
wayland_client
],
link_with: [lib_sway_common, lib_sway_client],
install: true
)

44
swaybg/swaybg.1.scd
View File

@ -1,44 +0,0 @@
swaybg(1)
# NAME
swaybg - Background for Wayland
# SYNOPSIS
*swaybg* [options...]
Displays a background image on all outputs of your Wayland session.
Without an output specified, appearance options apply to all outputs.
Per-output appearance options can be set by passing _-o, --output_ followed by
these options.
# OPTIONS
*-c, --color* <rrggbb[aa]>
Set the background color.
*-h, --help*
Show help message and quit.
*-i, --image* <path>
Set the background image.
*-m, --mode* <mode>
Scaling mode for images: _stretch_, _fill_, _fit_, _center_, or _tile_. Use
the additional mode _solid\_color_ to display only the background color,
even if a background image is specified.
*-o, --output* <name>
Select an output to configure. Subsequent appearance options will only
apply to this output. The special value _\*_ selects all outputs.
*-v, --version*
Show the version number and quit.
# AUTHORS
Maintained by Drew DeVault <sir@cmpwn.com>, who is assisted by other open
source contributors. For more information about swaybg development, see
https://github.com/swaywm/sway.

1
swaynag/meson.build
View File

@ -10,7 +10,6 @@ executable(
dependencies: [
cairo,
client_protos,
gdk_pixbuf,
pango,
pangocairo,
wayland_client,