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Merge pull request #1638 from swaywm/swaybg-layers

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Reimplement swaybg using surface layers
This commit is contained in:
Drew DeVault 2018-03-28 15:25:33 -04:00 committed by GitHub
commit 9070950eec
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19 changed files with 729 additions and 956 deletions
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16
client/meson.build Normal file
View file

@ -0,0 +1,16 @@
lib_sway_client = static_library(
'sway-client',
files(
'pool-buffer.c',
),
dependencies: [
cairo,
gdk_pixbuf,
pango,
pangocairo,
wlroots,
wayland_client,
],
link_with: [lib_sway_common],
include_directories: sway_inc
)

58
wayland/buffers.c → client/pool-buffer.c
View file

@ -1,21 +1,20 @@
#define _XOPEN_SOURCE 500
#include <wayland-client.h>
#include <assert.h>
#include <cairo/cairo.h>
#include <pango/pangocairo.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <errno.h>
#include <sys/mman.h>
#include "client/buffer.h"
#include "list.h"
#include "log.h"
#include <pango/pangocairo.h>
#include <unistd.h>
#include <wayland-client.h>
#include "config.h"
#include "pool-buffer.h"
static int create_pool_file(size_t size, char **name) {
static const char template[] = "sway-client-XXXXXX";
const char *path = getenv("XDG_RUNTIME_DIR");
if (!path) {
if (!path) {
return -1;
}
@ -42,7 +41,7 @@ static int create_pool_file(size_t size, char **name) {
}
static void buffer_release(void *data, struct wl_buffer *wl_buffer) {
struct buffer *buffer = data;
struct pool_buffer *buffer = data;
buffer->busy = false;
}
@ -50,22 +49,17 @@ static const struct wl_buffer_listener buffer_listener = {
.release = buffer_release
};
static struct buffer *create_buffer(struct window *window, struct buffer *buf,
int32_t width, int32_t height, int32_t scale, uint32_t format) {
width *= scale;
height *= scale;
static struct pool_buffer *create_buffer(struct wl_shm *shm,
struct pool_buffer *buf, int32_t width, int32_t height,
uint32_t format) {
uint32_t stride = width * 4;
uint32_t size = stride * height;
char *name;
int fd = create_pool_file(size, &name);
if (fd == -1) {
sway_abort("Unable to allocate buffer");
return NULL; // never reached
}
assert(fd);
void *data = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
struct wl_shm_pool *pool = wl_shm_create_pool(window->registry->shm, fd, size);
struct wl_shm_pool *pool = wl_shm_create_pool(shm, fd, size);
buf->buffer = wl_shm_pool_create_buffer(pool, 0,
width, height, stride, format);
wl_shm_pool_destroy(pool);
@ -85,7 +79,7 @@ static struct buffer *create_buffer(struct window *window, struct buffer *buf,
return buf;
}
static void destroy_buffer(struct buffer *buffer) {
static void destroy_buffer(struct pool_buffer *buffer) {
if (buffer->buffer) {
wl_buffer_destroy(buffer->buffer);
}
@ -98,37 +92,33 @@ static void destroy_buffer(struct buffer *buffer) {
if (buffer->pango) {
g_object_unref(buffer->pango);
}
memset(buffer, 0, sizeof(struct buffer));
memset(buffer, 0, sizeof(struct pool_buffer));
}
struct buffer *get_next_buffer(struct window *window) {
struct buffer *buffer = NULL;
struct pool_buffer *get_next_buffer(struct wl_shm *shm,
struct pool_buffer pool[static 2], uint32_t width, uint32_t height) {
struct pool_buffer *buffer = NULL;
int i;
for (i = 0; i < 2; ++i) {
if (window->buffers[i].busy) {
for (size_t i = 0; i < 2; ++i) {
if (pool[i].busy) {
continue;
}
buffer = &window->buffers[i];
buffer = &pool[i];
}
if (!buffer) {
return NULL;
}
if (buffer->width != window->width || buffer->height != window->height) {
if (buffer->width != width || buffer->height != height) {
destroy_buffer(buffer);
}
if (!buffer->buffer) {
if (!create_buffer(window, buffer,
window->width, window->height, window->scale,
if (!create_buffer(shm, buffer, width, height,
WL_SHM_FORMAT_ARGB8888)) {
return NULL;
}
}
window->cairo = buffer->cairo;
window->buffer = buffer;
return buffer;
}

45
wayland/cairo.c → common/cairo.c
View file

@ -1,4 +1,9 @@
#include "client/cairo.h"
#include <stdint.h>
#include <cairo/cairo.h>
#include "cairo.h"
#ifdef 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,
@ -8,45 +13,31 @@ void cairo_set_source_u32(cairo_t *cairo, uint32_t color) {
(color >> (0*8) & 0xFF) / 255.0);
}
cairo_surface_t *cairo_image_surface_scale(cairo_surface_t *image, int width, int height) {
cairo_surface_t *cairo_image_surface_scale(cairo_surface_t *image,
int width, int height) {
int image_width = cairo_image_surface_get_width(image);
int image_height = cairo_image_surface_get_height(image);
cairo_surface_t *new =
cairo_image_surface_create(CAIRO_FORMAT_ARGB32, width, height);
cairo_t *cairo = cairo_create(new);
cairo_scale(cairo, (double) width / image_width, (double) height / image_height);
cairo_scale(cairo, (double)width / image_width,
(double)height / image_height);
cairo_set_source_surface(cairo, image, 0, 0);
cairo_paint(cairo);
cairo_destroy(cairo);
return new;
}
#ifdef WITH_GDK_PIXBUF
#include <gdk-pixbuf/gdk-pixbuf.h>
#ifndef GDK_PIXBUF_CHECK_VERSION
#define GDK_PIXBUF_CHECK_VERSION(major,minor,micro) \
(GDK_PIXBUF_MAJOR > (major) || \
(GDK_PIXBUF_MAJOR == (major) && GDK_PIXBUF_MINOR > (minor)) || \
(GDK_PIXBUF_MAJOR == (major) && GDK_PIXBUF_MINOR == (minor) && \
GDK_PIXBUF_MICRO >= (micro)))
#endif
#ifdef 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;
if (chan < 3) {
return NULL;
}
#if GDK_PIXBUF_CHECK_VERSION(2,32,0)
const guint8* gdkpix = gdk_pixbuf_read_pixels(gdkbuf);
#else
const guint8* gdkpix = gdk_pixbuf_get_pixels(gdkbuf);
#endif
if (!gdkpix) {
return NULL;
}
@ -101,7 +92,9 @@ cairo_surface_t* gdk_cairo_image_surface_create_from_pixbuf(const GdkPixbuf *gdk
* ------
* 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
#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;
@ -131,4 +124,4 @@ cairo_surface_t* gdk_cairo_image_surface_create_from_pixbuf(const GdkPixbuf *gdk
cairo_surface_mark_dirty(cs);
return cs;
}
#endif //WITH_GDK_PIXBUF
#endif //HAVE_GDK_PIXBUF

21
common/meson.build
View file

@ -1,12 +1,23 @@
lib_sway_common = static_library('sway-common',
deps = [
cairo,
wlroots
]
if gdk_pixbuf.found()
deps += [gdk_pixbuf]
endif
lib_sway_common = static_library(
'sway-common',
files(
'cairo.c',
'ipc-client.c',
'log.c',
'list.c',
'util.c',
'stringop.c',
'readline.c',
'ipc-client.c'
'stringop.c',
'util.c'
),
dependencies: [ wlroots ],
dependencies: deps,
include_directories: sway_inc
)

10
include/client/cairo.h → include/cairo.h
View file

@ -1,17 +1,19 @@
#ifndef _SWAY_CAIRO_H
#define _SWAY_CAIRO_H
#include <stdint.h>
#include <cairo/cairo.h>
void cairo_set_source_u32(cairo_t *cairo, uint32_t color);
cairo_surface_t *cairo_image_surface_scale(cairo_surface_t *image, int width, int height);
cairo_surface_t *cairo_image_surface_scale(cairo_surface_t *image,
int width, int height);
#ifdef WITH_GDK_PIXBUF
#include "config.h"
#ifdef HAVE_GDK_PIXBUF
#include <gdk-pixbuf/gdk-pixbuf.h>
cairo_surface_t* gdk_cairo_image_surface_create_from_pixbuf(const GdkPixbuf *gdkbuf);
cairo_surface_t* gdk_cairo_image_surface_create_from_pixbuf(
const GdkPixbuf *gdkbuf);
#endif //WITH_GDK_PIXBUF
#endif

8
include/client/buffer.h
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@ -1,8 +0,0 @@
#ifndef _BUFFER_H
#define _BUFFER_H
#include "client/window.h"
struct buffer *get_next_buffer(struct window *state);
#endif

16
include/client/pango.h
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@ -1,16 +0,0 @@
#ifndef _SWAY_CLIENT_PANGO_H
#define _SWAY_CLIENT_PANGO_H
#include <cairo/cairo.h>
#include <pango/pangocairo.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
PangoLayout *get_pango_layout(cairo_t *cairo, const char *font, const char *text,
int32_t scale, bool markup);
void get_text_size(cairo_t *cairo, const char *font, int *width, int *height,
int32_t scale, bool markup, const char *fmt, ...);
void pango_printf(cairo_t *cairo, const char *font, int32_t scale, bool markup, const char *fmt, ...);
#endif

75
include/client/registry.h
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@ -1,75 +0,0 @@
#ifndef _SWAY_CLIENT_REGISTRY_H
#define _SWAY_CLIENT_REGISTRY_H
#include <wayland-client.h>
#include <xkbcommon/xkbcommon.h>
#include "wayland-desktop-shell-client-protocol.h"
#include "wayland-swaylock-client-protocol.h"
#include "list.h"
enum mod_bit {
MOD_SHIFT = 1<<0,
MOD_CAPS = 1<<1,
MOD_CTRL = 1<<2,
MOD_ALT = 1<<3,
MOD_MOD2 = 1<<4,
MOD_MOD3 = 1<<5,
MOD_LOGO = 1<<6,
MOD_MOD5 = 1<<7,
};
enum mask {
MASK_SHIFT,
MASK_CAPS,
MASK_CTRL,
MASK_ALT,
MASK_MOD2,
MASK_MOD3,
MASK_LOGO,
MASK_MOD5,
MASK_LAST
};
struct output_state {
struct wl_output *output;
uint32_t flags;
uint32_t width, height;
uint32_t scale;
};
struct xkb {
struct xkb_state *state;
struct xkb_context *context;
struct xkb_keymap *keymap;
xkb_mod_mask_t masks[MASK_LAST];
};
struct input {
struct xkb xkb;
xkb_keysym_t sym;
uint32_t code;
uint32_t last_code;
uint32_t modifiers;
void (*notify)(enum wl_keyboard_key_state state, xkb_keysym_t sym, uint32_t code, uint32_t codepoint);
};
struct registry {
struct wl_compositor *compositor;
struct wl_display *display;
struct wl_pointer *pointer;
struct wl_keyboard *keyboard;
struct wl_seat *seat;
struct wl_shell *shell;
struct wl_shm *shm;
struct desktop_shell *desktop_shell;
struct lock *swaylock;
struct input *input;
list_t *outputs;
};
struct registry *registry_poll(void);
void registry_teardown(struct registry *registry);
#endif

67
include/client/window.h
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@ -1,67 +0,0 @@
#ifndef _CLIENT_H
#define _CLIENT_H
#include <wayland-client.h>
#include "wayland-desktop-shell-client-protocol.h"
#include <cairo/cairo.h>
#include <pango/pangocairo.h>
#include <stdbool.h>
#include "list.h"
#include "client/registry.h"
struct window;
struct buffer {
struct wl_buffer *buffer;
cairo_surface_t *surface;
cairo_t *cairo;
PangoContext *pango;
uint32_t width, height;
bool busy;
};
struct cursor {
struct wl_surface *surface;
struct wl_cursor_theme *cursor_theme;
struct wl_cursor *cursor;
struct wl_pointer *pointer;
};
enum scroll_direction {
SCROLL_UP,
SCROLL_DOWN,
SCROLL_LEFT,
SCROLL_RIGHT,
};
struct pointer_input {
int last_x;
int last_y;
void (*notify_button)(struct window *window, int x, int y, uint32_t button, uint32_t state_w);
void (*notify_scroll)(struct window *window, enum scroll_direction direction);
};
struct window {
struct registry *registry;
struct buffer buffers[2];
struct buffer *buffer;
struct wl_surface *surface;
struct wl_shell_surface *shell_surface;
struct wl_callback *frame_cb;
struct cursor cursor;
uint32_t width, height;
int32_t scale;
char *font;
cairo_t *cairo;
struct pointer_input pointer_input;
};
struct window *window_setup(struct registry *registry, uint32_t width, uint32_t height,
int32_t scale, bool shell_surface);
void window_teardown(struct window *state);
int window_prerender(struct window *state);
int window_render(struct window *state);
void window_make_shell(struct window *window);
#endif

1
include/meson.build Normal file
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@ -0,0 +1 @@
configure_file(output: 'config.h', configuration: conf_data)

21
include/pool-buffer.h Normal file
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@ -0,0 +1,21 @@
#ifndef _SWAY_BUFFERS_H
#define _SWAY_BUFFERS_H
#include <cairo/cairo.h>
#include <pango/pangocairo.h>
#include <stdbool.h>
#include <stdint.h>
#include <wayland-client.h>
struct pool_buffer {
struct wl_buffer *buffer;
cairo_surface_t *surface;
cairo_t *cairo;
PangoContext *pango;
uint32_t width, height;
bool busy;
};
struct pool_buffer *get_next_buffer(struct wl_shm *shm,
struct pool_buffer pool[static 2], uint32_t width, uint32_t height);
#endif

13
meson.build
View file

@ -27,7 +27,10 @@ wayland_client = dependency('wayland-client')
wayland_egl = dependency('wayland-egl')
wayland_protos = dependency('wayland-protocols')
xkbcommon = dependency('xkbcommon')
cairo = dependency('cairo')
pango = dependency('pango')
pangocairo = dependency('pangocairo')
gdk_pixbuf = dependency('gdk-pixbuf-2.0', required: false)
pixman = dependency('pixman-1')
libcap = dependency('libcap')
libinput = dependency('libinput')
@ -35,6 +38,12 @@ math = cc.find_library('m')
git = find_program('git', required: false)
a2x = find_program('a2x', required: false)
conf_data = configuration_data()
if gdk_pixbuf.found()
conf_data.set('HAVE_GDK_PIXBUF', true)
endif
if a2x.found()
mandir = get_option('mandir')
man_files = [
@ -85,9 +94,13 @@ add_project_arguments('-DSWAY_VERSION=@0@'.format(version), language: 'c')
sway_inc = include_directories('include')
subdir('include')
subdir('protocols')
subdir('common')
subdir('sway')
subdir('swaymsg')
subdir('client')
subdir('swaybg')
config = configuration_data()
config.set('sysconfdir', join_paths(prefix, sysconfdir))

37
protocols/meson.build Normal file
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@ -0,0 +1,37 @@
wl_protocol_dir = wayland_protos.get_pkgconfig_variable('pkgdatadir')
wayland_scanner = find_program('wayland-scanner')
wayland_scanner_code = generator(
wayland_scanner,
output: '@BASENAME@-protocol.c',
arguments: ['code', '@INPUT@', '@OUTPUT@'],
)
wayland_scanner_client = generator(
wayland_scanner,
output: '@BASENAME@-client-protocol.h',
arguments: ['client-header', '@INPUT@', '@OUTPUT@'],
)
protocols = [
[wl_protocol_dir, 'stable/xdg-shell/xdg-shell.xml'],
['wlr-layer-shell-unstable-v1.xml']
]
wl_protos_src = []
wl_protos_headers = []
foreach p : protocols
xml = join_paths(p)
wl_protos_src += wayland_scanner_code.process(xml)
wl_protos_headers += wayland_scanner_client.process(xml)
endforeach
lib_wl_protos = static_library('wl_protos', wl_protos_src + wl_protos_headers,
dependencies: [wayland_client]) # for the include directory
sway_protos = declare_dependency(
link_with: lib_wl_protos,
sources: wl_protos_headers,
)

281
protocols/wlr-layer-shell-unstable-v1.xml Normal file
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@ -0,0 +1,281 @@
<?xml version="1.0" encoding="UTF-8"?>
<protocol name="wlr_layer_shell_unstable_v1">
<copyright>
Copyright © 2017 Drew DeVault
Permission to use, copy, modify, distribute, and sell this
software and its documentation for any purpose is hereby granted
without fee, provided that the above copyright notice appear in
all copies and that both that copyright notice and this permission
notice appear in supporting documentation, and that the name of
the copyright holders not be used in advertising or publicity
pertaining to distribution of the software without specific,
written prior permission. The copyright holders make no
representations about the suitability of this software for any
purpose. It is provided "as is" without express or implied
warranty.
THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
</copyright>
<interface name="zwlr_layer_shell_v1" version="1">
<description summary="create surfaces that are layers of the desktop">
Clients can use this interface to assign the surface_layer role to
wl_surfaces. Such surfaces are assigned to a "layer" of the output and
rendered with a defined z-depth respective to each other. They may also be
anchored to the edges and corners of a screen and specify input handling
semantics. This interface should be suitable for the implementation of
many desktop shell components, and a broad number of other applications
that interact with the desktop.
</description>
<request name="get_layer_surface">
<description summary="create a layer_surface from a surface">
Create a layer surface for an existing surface. This assigns the role of
layer_surface, or raises a protocol error if another role is already
assigned.
Creating a layer surface from a wl_surface which has a buffer attached
or committed is a client error, and any attempts by a client to attach
or manipulate a buffer prior to the first layer_surface.configure call
must also be treated as errors.
Clients can specify a namespace that defines the purpose of the layer
surface.
</description>
<arg name="id" type="new_id" interface="zwlr_layer_surface_v1"/>
<arg name="surface" type="object" interface="wl_surface"/>
<arg name="output" type="object" interface="wl_output"/>
<arg name="layer" type="uint" enum="layer" summary="layer to add this surface to"/>
<arg name="namespace" type="string" summary="namespace for the layer surface"/>
</request>
<enum name="error">
<entry name="role" value="0" summary="wl_surface has another role"/>
<entry name="invalid_layer" value="1" summary="layer value is invalid"/>
<entry name="already_constructed" value="2" summary="wl_surface has a buffer attached or committed"/>
</enum>
<enum name="layer">
<description summary="available layers for surfaces">
These values indicate which layers a surface can be rendered in. They
are ordered by z depth, bottom-most first. Traditional shell surfaces
will typically be rendered between the bottom and top layers.
Fullscreen shell surfaces are typically rendered at the top layer.
Multiple surfaces can share a single layer, and ordering within a
single layer is undefined.
</description>
<entry name="background" value="0"/>
<entry name="bottom" value="1"/>
<entry name="top" value="2"/>
<entry name="overlay" value="3"/>
</enum>
</interface>
<interface name="zwlr_layer_surface_v1" version="1">
<description summary="layer metadata interface">
An interface that may be implemented by a wl_surface, for surfaces that
are designed to be rendered as a layer of a stacked desktop-like
environment.
Layer surface state (size, anchor, exclusive zone, margin, interactivity)
is double-buffered, and will be applied at the time wl_surface.commit of
the corresponding wl_surface is called.
</description>
<request name="set_size">
<description summary="sets the size of the surface">
Sets the size of the surface in surface-local coordinates. The
compositor will display the surface centered with respect to its
anchors.
If you pass 0 for either value, the compositor will assign it and
inform you of the assignment in the configure event. You must set your
anchor to opposite edges in the dimensions you omit; not doing so is a
protocol error. Both values are 0 by default.
Size is double-buffered, see wl_surface.commit.
</description>
<arg name="width" type="uint"/>
<arg name="height" type="uint"/>
</request>
<request name="set_anchor">
<description summary="configures the anchor point of the surface">
Requests that the compositor anchor the surface to the specified edges
and corners. If two orthoginal edges are specified (e.g. 'top' and
'left'), then the anchor point will be the intersection of the edges
(e.g. the top left corner of the output); otherwise the anchor point
will be centered on that edge, or in the center if none is specified.
Anchor is double-buffered, see wl_surface.commit.
</description>
<arg name="anchor" type="uint" enum="anchor"/>
</request>
<request name="set_exclusive_zone">
<description summary="configures the exclusive geometry of this surface">
Requests that the compositor avoids occluding an area of the surface
with other surfaces. The compositor's use of this information is
implementation-dependent - do not assume that this region will not
actually be occluded.
A positive value is only meaningful if the surface is anchored to an
edge, rather than a corner. The zone is the number of surface-local
coordinates from the edge that are considered exclusive.
Surfaces that do not wish to have an exclusive zone may instead specify
how they should interact with surfaces that do. If set to zero, the
surface indicates that it would like to be moved to avoid occluding
surfaces with a positive excluzive zone. If set to -1, the surface
indicates that it would not like to be moved to accomodate for other
surfaces, and the compositor should extend it all the way to the edges
it is anchored to.
For example, a panel might set its exclusive zone to 10, so that
maximized shell surfaces are not shown on top of it. A notification
might set its exclusive zone to 0, so that it is moved to avoid
occluding the panel, but shell surfaces are shown underneath it. A
wallpaper or lock screen might set their exclusive zone to -1, so that
they stretch below or over the panel.
The default value is 0.
Exclusive zone is double-buffered, see wl_surface.commit.
</description>
<arg name="zone" type="int"/>
</request>
<request name="set_margin">
<description summary="sets a margin from the anchor point">
Requests that the surface be placed some distance away from the anchor
point on the output, in surface-local coordinates. Setting this value
for edges you are not anchored to has no effect.
The exclusive zone includes the margin.
Margin is double-buffered, see wl_surface.commit.
</description>
<arg name="top" type="int"/>
<arg name="right" type="int"/>
<arg name="bottom" type="int"/>
<arg name="left" type="int"/>
</request>
<request name="set_keyboard_interactivity">
<description summary="requests keyboard events">
Set to 1 to request that the seat send keyboard events to this layer
surface. For layers below the shell surface layer, the seat will use
normal focus semantics. For layers above the shell surface layers, the
seat will always give exclusive keyboard focus to the top-most layer
which has keyboard interactivity set to true.
Layer surfaces receive pointer, touch, and tablet events normally. If
you do not want to receive them, set the input region on your surface
to an empty region.
Events is double-buffered, see wl_surface.commit.
</description>
<arg name="keyboard_interactivity" type="uint"/>
</request>
<request name="get_popup">
<description summary="assign this layer_surface as an xdg_popup parent">
This assigns an xdg_popup's parent to this layer_surface. This popup
should have been created via xdg_surface::get_popup with the parent set
to NULL, and this request must be invoked before committing the popup's
initial state.
See the documentation of xdg_popup for more details about what an
xdg_popup is and how it is used.
</description>
<arg name="popup" type="object" interface="xdg_popup"/>
</request>
<request name="ack_configure">
<description summary="ack a configure event">
When a configure event is received, if a client commits the
surface in response to the configure event, then the client
must make an ack_configure request sometime before the commit
request, passing along the serial of the configure event.
If the client receives multiple configure events before it
can respond to one, it only has to ack the last configure event.
A client is not required to commit immediately after sending
an ack_configure request - it may even ack_configure several times
before its next surface commit.
A client may send multiple ack_configure requests before committing, but
only the last request sent before a commit indicates which configure
event the client really is responding to.
</description>
<arg name="serial" type="uint" summary="the serial from the configure event"/>
</request>
<request name="destroy" type="destructor">
<description summary="destroy the layer_surface">
This request destroys the layer surface.
</description>
</request>
<event name="configure">
<description summary="suggest a surface change">
The configure event asks the client to resize its surface.
Clients should arrange their surface for the new states, and then send
an ack_configure request with the serial sent in this configure event at
some point before committing the new surface.
The client is free to dismiss all but the last configure event it
received.
The width and height arguments specify the size of the window in
surface-local coordinates.
The size is a hint, in the sense that the client is free to ignore it if
it doesn't resize, pick a smaller size (to satisfy aspect ratio or
resize in steps of NxM pixels). If the client picks a smaller size and
is anchored to two opposite anchors (e.g. 'top' and 'bottom'), the
surface will be centered on this axis.
If the width or height arguments are zero, it means the client should
decide its own window dimension.
</description>
<arg name="serial" type="uint"/>
<arg name="width" type="uint"/>
<arg name="height" type="uint"/>
</event>
<event name="closed">
<description summary="surface should be closed">
The closed event is sent by the compositor when the surface will no
longer be shown. The output may have been destroyed or the user may
have asked for it to be removed. Further changes to the surface will be
ignored. The client should destroy the resource after receiving this
event, and create a new surface if they so choose.
</description>
</event>
<enum name="error">
<entry name="invalid_surface_state" value="0" summary="provided surface state is invalid"/>
<entry name="invalid_size" value="1" summary="size is invalid"/>
<entry name="invalid_anchor" value="2" summary="anchor bitfield is invalid"/>
</enum>
<enum name="anchor" bitfield="true">
<entry name="top" value="1" summary="the top edge of the anchor rectangle"/>
<entry name="bottom" value="2" summary="the bottom edge of the anchor rectangle"/>
<entry name="left" value="4" summary="the left edge of the anchor rectangle"/>
<entry name="right" value="8" summary="the right edge of the anchor rectangle"/>
</enum>
</interface>
</protocol>

455
swaybg/main.c
View file

@ -1,44 +1,61 @@
#include "wayland-desktop-shell-client-protocol.h"
#include <assert.h>
#include <ctype.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <wayland-client.h>
#include <time.h>
#include <string.h>
#include "client/window.h"
#include "client/registry.h"
#include "client/cairo.h"
#include "log.h"
#include "list.h"
#include <time.h>
#include <wayland-client.h>
#include <wlr/util/log.h>
#include "pool-buffer.h"
#include "cairo.h"
#include "util.h"
#include "wlr-layer-shell-unstable-v1-client-protocol.h"
list_t *surfaces;
struct registry *registry;
enum scaling_mode {
SCALING_MODE_STRETCH,
SCALING_MODE_FILL,
SCALING_MODE_FIT,
SCALING_MODE_CENTER,
SCALING_MODE_TILE,
enum background_mode {
BACKGROUND_MODE_STRETCH,
BACKGROUND_MODE_FILL,
BACKGROUND_MODE_FIT,
BACKGROUND_MODE_CENTER,
BACKGROUND_MODE_TILE,
BACKGROUND_MODE_SOLID_COLOR,
};
void sway_terminate(int exit_code) {
int i;
for (i = 0; i < surfaces->length; ++i) {
struct window *window = surfaces->items[i];
window_teardown(window);
}
list_free(surfaces);
registry_teardown(registry);
exit(exit_code);
}
struct swaybg_args {
int output_idx;
const char *path;
enum background_mode mode;
};
struct swaybg_context {
uint32_t color;
cairo_surface_t *image;
};
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_output *output;
struct wl_surface *surface;
struct zwlr_layer_surface_v1 *layer_surface;
bool run_display;
uint32_t width, height;
struct pool_buffer buffers[2];
struct pool_buffer *current_buffer;
};
bool is_valid_color(const char *color) {
int len = strlen(color);
if (len != 7 || color[0] != '#') {
sway_log(L_ERROR, "%s is not a valid color for swaybg. Color should be specified as #rrggbb (no alpha).", color);
wlr_log(L_ERROR, "%s is not a valid color for swaybg. "
"Color should be specified as #rrggbb (no alpha).", color);
return false;
}
@ -52,163 +69,245 @@ bool is_valid_color(const char *color) {
return true;
}
static void render_image(struct swaybg_state *state) {
cairo_t *cairo = state->current_buffer->cairo;
cairo_surface_t *image = state->context.image;
double width = cairo_image_surface_get_width(image);
double height = cairo_image_surface_get_height(image);
int wwidth = state->width;
int wheight = state->height;
switch (state->args->mode) {
case BACKGROUND_MODE_STRETCH:
cairo_scale(cairo, (double)wwidth / width, (double)wheight / height);
cairo_set_source_surface(cairo, image, 0, 0);
break;
case BACKGROUND_MODE_FILL: {
double window_ratio = (double)wwidth / wheight;
double bg_ratio = width / height;
if (window_ratio > bg_ratio) {
double scale = (double)wwidth / width;
cairo_scale(cairo, scale, scale);
cairo_set_source_surface(cairo, image,
0, (double)wheight / 2 / scale - height / 2);
} else {
double scale = (double)wheight / height;
cairo_scale(cairo, scale, scale);
cairo_set_source_surface(cairo, image,
(double)wwidth / 2 / scale - width / 2, 0);
}
break;
}
case BACKGROUND_MODE_FIT: {
double window_ratio = (double)wwidth / wheight;
double bg_ratio = width / height;
if (window_ratio > bg_ratio) {
double scale = (double)wheight / height;
cairo_scale(cairo, scale, scale);
cairo_set_source_surface(cairo, image,
(double)wwidth / 2 / scale - width / 2, 0);
} else {
double scale = (double)wwidth / width;
cairo_scale(cairo, scale, scale);
cairo_set_source_surface(cairo, image,
0, (double)wheight / 2 / scale - height / 2);
}
break;
}
case BACKGROUND_MODE_CENTER:
cairo_set_source_surface(cairo, image,
(double)wwidth / 2 - width / 2,
(double)wheight / 2 - height / 2);
break;
case BACKGROUND_MODE_TILE: {
cairo_pattern_t *pattern = cairo_pattern_create_for_surface(image);
cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT);
cairo_set_source(cairo, pattern);
break;
}
case BACKGROUND_MODE_SOLID_COLOR:
assert(0);
break;
}
cairo_paint(cairo);
}
static void render_frame(struct swaybg_state *state) {
state->current_buffer = get_next_buffer(state->shm,
state->buffers, state->width, state->height);
cairo_t *cairo = state->current_buffer->cairo;
switch (state->args->mode) {
case BACKGROUND_MODE_SOLID_COLOR:
cairo_set_source_u32(cairo, state->context.color);
cairo_paint(cairo);
break;
default:
render_image(state);
break;
}
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);
}
static bool prepare_context(struct swaybg_state *state) {
if (state->args->mode == BACKGROUND_MODE_SOLID_COLOR) {
state->context.color = parse_color(state->args->path);
return is_valid_color(state->args->path);
}
#ifdef HAVE_GDK_PIXBUF
GError *err = NULL;
GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file(state->args->path, &err);
if (!pixbuf) {
wlr_log(L_ERROR, "Failed to load background image.");
return false;
}
state->context.image = gdk_cairo_image_surface_create_from_pixbuf(pixbuf);
g_object_unref(pixbuf);
#else
state->context.image = cairo_image_surface_create_from_png(
state->args->path);
#endif //HAVE_GDK_PIXBUF
if (!state->context.image) {
wlr_log(L_ERROR, "Failed to read background image.");
return false;
}
if (cairo_surface_status(state->context.image) != CAIRO_STATUS_SUCCESS) {
wlr_log(L_ERROR, "Failed to read background image: %s."
#ifndef HAVE_GDK_PIXBUF
"\nSway was compiled without gdk_pixbuf support, so only"
"\nPNG images can be loaded. This is the likely cause."
#endif //HAVE_GDK_PIXBUF
, cairo_status_to_string(
cairo_surface_status(state->context.image)));
return false;
}
return true;
}
static void layer_surface_configure(void *data,
struct zwlr_layer_surface_v1 *surface,
uint32_t serial, uint32_t width, uint32_t height) {
struct swaybg_state *state = data;
state->width = width;
state->height = height;
zwlr_layer_surface_v1_ack_configure(surface, serial);
render_frame(state);
}
static void layer_surface_closed(void *data,
struct zwlr_layer_surface_v1 *surface) {
struct swaybg_state *state = data;
zwlr_layer_surface_v1_destroy(state->layer_surface);
wl_surface_destroy(state->surface);
state->run_display = false;
}
struct zwlr_layer_surface_v1_listener layer_surface_listener = {
.configure = layer_surface_configure,
.closed = layer_surface_closed,
};
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, 1);
} 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) {
static int output_idx = 0;
if (output_idx == state->args->output_idx) {
state->output = wl_registry_bind(registry, name,
&wl_output_interface, 1);
}
output_idx++;
} 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);
}
}
static void handle_global_remove(void *data, struct wl_registry *registry,
uint32_t name) {
// who cares
}
static const struct wl_registry_listener registry_listener = {
.global = handle_global,
.global_remove = handle_global_remove,
};
int main(int argc, const char **argv) {
init_log(L_INFO);
surfaces = create_list();
registry = registry_poll();
struct swaybg_args args = {0};
struct swaybg_state state = {0};
state.args = &args;
wlr_log_init(L_DEBUG, NULL);
if (argc != 4) {
sway_abort("Do not run this program manually. See man 5 sway and look for output options.");
wlr_log(L_ERROR, "Do not run this program manually. "
"See man 5 sway and look for output options.");
return 1;
}
args.output_idx = atoi(argv[1]);
args.path = argv[2];
if (!registry->desktop_shell) {
sway_abort("swaybg requires the compositor to support the desktop-shell extension.");
}
int desired_output = atoi(argv[1]);
sway_log(L_INFO, "Using output %d of %d", desired_output, registry->outputs->length);
int i;
struct output_state *output = registry->outputs->items[desired_output];
struct window *window = window_setup(registry,
output->width, output->height, output->scale, false);
if (!window) {
sway_abort("Failed to create surfaces.");
}
desktop_shell_set_background(registry->desktop_shell, output->output, window->surface);
window_make_shell(window);
list_add(surfaces, window);
if (strcmp(argv[3], "solid_color") == 0 && is_valid_color(argv[2])) {
cairo_set_source_u32(window->cairo, parse_color(argv[2]));
cairo_paint(window->cairo);
window_render(window);
args.mode = BACKGROUND_MODE_STRETCH;
if (strcmp(argv[3], "stretch") == 0) {
args.mode = BACKGROUND_MODE_STRETCH;
} else if (strcmp(argv[3], "fill") == 0) {
args.mode = BACKGROUND_MODE_FILL;
} else if (strcmp(argv[3], "fit") == 0) {
args.mode = BACKGROUND_MODE_FIT;
} else if (strcmp(argv[3], "center") == 0) {
args.mode = BACKGROUND_MODE_CENTER;
} else if (strcmp(argv[3], "tile") == 0) {
args.mode = BACKGROUND_MODE_TILE;
} else if (strcmp(argv[3], "solid_color") == 0) {
args.mode = BACKGROUND_MODE_SOLID_COLOR;
} else {
#ifdef WITH_GDK_PIXBUF
GError *err = NULL;
GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file(argv[2], &err);
if (!pixbuf) {
sway_abort("Failed to load background image.");
}
cairo_surface_t *image = gdk_cairo_image_surface_create_from_pixbuf(pixbuf);
g_object_unref(pixbuf);
#else
cairo_surface_t *image = cairo_image_surface_create_from_png(argv[2]);
#endif //WITH_GDK_PIXBUF
if (!image) {
sway_abort("Failed to read background image.");
}
if (cairo_surface_status(image) != CAIRO_STATUS_SUCCESS) {
sway_abort("Failed to read background image: %s."
#ifndef WITH_GDK_PIXBUF
"\nSway was compiled without gdk_pixbuf support, so only"
"\nPNG images can be loaded. This is the likely cause."
#endif //WITH_GDK_PIXBUF
, cairo_status_to_string(cairo_surface_status(image)));
}
double width = cairo_image_surface_get_width(image);
double height = cairo_image_surface_get_height(image);
const char *scaling_mode_str = argv[3];
enum scaling_mode scaling_mode = SCALING_MODE_STRETCH;
if (strcmp(scaling_mode_str, "stretch") == 0) {
scaling_mode = SCALING_MODE_STRETCH;
} else if (strcmp(scaling_mode_str, "fill") == 0) {
scaling_mode = SCALING_MODE_FILL;
} else if (strcmp(scaling_mode_str, "fit") == 0) {
scaling_mode = SCALING_MODE_FIT;
} else if (strcmp(scaling_mode_str, "center") == 0) {
scaling_mode = SCALING_MODE_CENTER;
} else if (strcmp(scaling_mode_str, "tile") == 0) {
scaling_mode = SCALING_MODE_TILE;
} else {
sway_abort("Unsupported scaling mode: %s", scaling_mode_str);
}
int wwidth = window->width * window->scale;
int wheight = window->height * window->scale;
for (i = 0; i < surfaces->length; ++i) {
struct window *window = surfaces->items[i];
if (window_prerender(window) && window->cairo) {
switch (scaling_mode) {
case SCALING_MODE_STRETCH:
cairo_scale(window->cairo,
(double) wwidth / width,
(double) wheight / height);
cairo_set_source_surface(window->cairo, image, 0, 0);
break;
case SCALING_MODE_FILL:
{
double window_ratio = (double) wwidth / wheight;
double bg_ratio = width / height;
if (window_ratio > bg_ratio) {
double scale = (double) wwidth / width;
cairo_scale(window->cairo, scale, scale);
cairo_set_source_surface(window->cairo, image,
0,
(double) wheight/2 / scale - height/2);
} else {
double scale = (double) wheight / height;
cairo_scale(window->cairo, scale, scale);
cairo_set_source_surface(window->cairo, image,
(double) wwidth/2 / scale - width/2,
0);
}
break;
}
case SCALING_MODE_FIT:
{
double window_ratio = (double) wwidth / wheight;
double bg_ratio = width / height;
if (window_ratio > bg_ratio) {
double scale = (double) wheight / height;
cairo_scale(window->cairo, scale, scale);
cairo_set_source_surface(window->cairo, image,
(double) wwidth/2 / scale - width/2,
0);
} else {
double scale = (double) wwidth / width;
cairo_scale(window->cairo, scale, scale);
cairo_set_source_surface(window->cairo, image,
0,
(double) wheight/2 / scale - height/2);
}
break;
}
case SCALING_MODE_CENTER:
cairo_set_source_surface(window->cairo, image,
(double) wwidth/2 - width/2,
(double) wheight/2 - height/2);
break;
case SCALING_MODE_TILE:
{
cairo_pattern_t *pattern = cairo_pattern_create_for_surface(image);
cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT);
cairo_set_source(window->cairo, pattern);
break;
}
default:
sway_abort("Scaling mode '%s' not implemented yet!", scaling_mode_str);
}
cairo_paint(window->cairo);
window_render(window);
}
}
cairo_surface_destroy(image);
wlr_log(L_ERROR, "Unsupported background mode: %s", argv[3]);
return 1;
}
while (wl_display_dispatch(registry->display) != -1);
for (i = 0; i < surfaces->length; ++i) {
struct window *window = surfaces->items[i];
window_teardown(window);
if (!prepare_context(&state)) {
return 1;
}
assert(state.display = wl_display_connect(NULL));
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);
assert(state.surface = wl_compositor_create_surface(state.compositor));
state.layer_surface = zwlr_layer_shell_v1_get_layer_surface(
state.layer_shell, state.surface, state.output,
ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND, "wallpaper");
assert(state.layer_surface);
zwlr_layer_surface_v1_set_size(state.layer_surface, 0, 0);
zwlr_layer_surface_v1_set_anchor(state.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_add_listener(state.layer_surface,
&layer_surface_listener, &state);
state.run_display = true;
wl_surface_commit(state.surface);
wl_display_roundtrip(state.display);
while (wl_display_dispatch(state.display) != -1 && state.run_display) {
// This space intentionally left blank
}
list_free(surfaces);
registry_teardown(registry);
return 0;
}

18
swaybg/meson.build Normal file
View file

@ -0,0 +1,18 @@
executable(
'swaybg',
'main.c',
include_directories: [sway_inc],
dependencies: [
cairo,
gdk_pixbuf,
jsonc,
math,
pango,
pangocairo,
sway_protos,
wayland_client,
wlroots,
],
link_with: [lib_sway_common, lib_sway_client],
install: true
)

73
wayland/pango.c
View file

@ -1,73 +0,0 @@
#include <cairo/cairo.h>
#include <pango/pangocairo.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <stdbool.h>
#include <stdint.h>
#include "log.h"
PangoLayout *get_pango_layout(cairo_t *cairo, const char *font, const char *text,
int32_t scale, bool markup) {
PangoLayout *layout = pango_cairo_create_layout(cairo);
PangoAttrList *attrs;
if (markup) {
char *buf;
pango_parse_markup(text, -1, 0, &attrs, &buf, NULL, NULL);
pango_layout_set_markup(layout, buf, -1);
free(buf);
} else {
attrs = pango_attr_list_new();
pango_layout_set_text(layout, text, -1);
}
pango_attr_list_insert(attrs, pango_attr_scale_new(scale));
PangoFontDescription *desc = pango_font_description_from_string(font);
pango_layout_set_font_description(layout, desc);
pango_layout_set_single_paragraph_mode(layout, 1);
pango_layout_set_attributes(layout, attrs);
pango_attr_list_unref(attrs);
pango_font_description_free(desc);
return layout;
}
void get_text_size(cairo_t *cairo, const char *font, int *width, int *height,
int32_t scale, bool markup, const char *fmt, ...) {
char *buf = malloc(2048);
va_list args;
va_start(args, fmt);
if (vsnprintf(buf, 2048, fmt, args) >= 2048) {
strcpy(buf, "[buffer overflow]");
}
va_end(args);
PangoLayout *layout = get_pango_layout(cairo, font, buf, scale, markup);
pango_cairo_update_layout(cairo, layout);
pango_layout_get_pixel_size(layout, width, height);
g_object_unref(layout);
free(buf);
}
void pango_printf(cairo_t *cairo, const char *font, int32_t scale, bool markup, const char *fmt, ...) {
char *buf = malloc(2048);
va_list args;
va_start(args, fmt);
if (vsnprintf(buf, 2048, fmt, args) >= 2048) {
strcpy(buf, "[buffer overflow]");
}
va_end(args);
PangoLayout *layout = get_pango_layout(cairo, font, buf, scale, markup);
pango_cairo_update_layout(cairo, layout);
pango_cairo_show_layout(cairo, layout);
g_object_unref(layout);
free(buf);
}

293
wayland/registry.c
View file

@ -1,293 +0,0 @@
#include <wayland-client.h>
#include <xkbcommon/xkbcommon.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <sys/timerfd.h>
#include "wayland-desktop-shell-client-protocol.h"
#include "wayland-swaylock-client-protocol.h"
#include "client/registry.h"
#include "stringop.h"
#include "log.h"
static void display_handle_mode(void *data, struct wl_output *wl_output,
uint32_t flags, int32_t width, int32_t height, int32_t refresh) {
struct output_state *state = data;
if (flags & WL_OUTPUT_MODE_CURRENT) {
state->flags = flags;
state->width = width;
state->height = height;
sway_log(L_DEBUG, "Got mode %dx%d:0x%X for output %p",
width, height, flags, data);
}
}
static void display_handle_geometry(void *data, struct wl_output *wl_output,
int32_t x, int32_t y, int32_t physical_width, int32_t physical_height,
int32_t subpixel, const char *make, const char *model, int32_t transform) {
// this space intentionally left blank
}
static void display_handle_done(void *data, struct wl_output *wl_output) {
// this space intentionally left blank
}
static void display_handle_scale(void *data, struct wl_output *wl_output, int32_t factor) {
struct output_state *state = data;
state->scale = factor;
sway_log(L_DEBUG, "Got scale factor %d for output %p", factor, data);
}
static const struct wl_output_listener output_listener = {
.mode = display_handle_mode,
.geometry = display_handle_geometry,
.done = display_handle_done,
.scale = display_handle_scale
};
const char *XKB_MASK_NAMES[MASK_LAST] = {
XKB_MOD_NAME_SHIFT,
XKB_MOD_NAME_CAPS,
XKB_MOD_NAME_CTRL,
XKB_MOD_NAME_ALT,
"Mod2",
"Mod3",
XKB_MOD_NAME_LOGO,
"Mod5",
};
const enum mod_bit XKB_MODS[MASK_LAST] = {
MOD_SHIFT,
MOD_CAPS,
MOD_CTRL,
MOD_ALT,
MOD_MOD2,
MOD_MOD3,
MOD_LOGO,
MOD_MOD5
};
static void keyboard_handle_keymap(void *data, struct wl_keyboard *keyboard,
uint32_t format, int fd, uint32_t size) {
// Keyboard errors are abort-worthy because you wouldn't be able to unlock your screen otherwise.
struct registry *registry = data;
if (!data) {
close(fd);
return;
}
if (format != WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1) {
close(fd);
sway_abort("Unknown keymap format %d, aborting", format);
}
char *map_str = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0);
if (map_str == MAP_FAILED) {
close(fd);
sway_abort("Unable to initialized shared keyboard memory, aborting");
}
struct xkb_keymap *keymap = xkb_keymap_new_from_string(registry->input->xkb.context,
map_str, XKB_KEYMAP_FORMAT_TEXT_V1, 0);
munmap(map_str, size);
close(fd);
if (!keymap) {
sway_abort("Failed to compile keymap, aborting");
}
struct xkb_state *state = xkb_state_new(keymap);
if (!state) {
xkb_keymap_unref(keymap);
sway_abort("Failed to create xkb state, aborting");
}
xkb_keymap_unref(registry->input->xkb.keymap);
xkb_state_unref(registry->input->xkb.state);
registry->input->xkb.keymap = keymap;
registry->input->xkb.state = state;
int i;
for (i = 0; i < MASK_LAST; ++i) {
registry->input->xkb.masks[i] = 1 << xkb_keymap_mod_get_index(registry->input->xkb.keymap, XKB_MASK_NAMES[i]);
}
}
static void keyboard_handle_enter(void *data, struct wl_keyboard *keyboard,
uint32_t serial, struct wl_surface *surface, struct wl_array *keys) {
// this space intentionally left blank
}
static void keyboard_handle_leave(void *data, struct wl_keyboard *keyboard,
uint32_t serial, struct wl_surface *surface) {
// this space intentionally left blank
}
static void keyboard_handle_key(void *data, struct wl_keyboard *keyboard,
uint32_t serial, uint32_t time, uint32_t key, uint32_t state_w) {
struct registry *registry = data;
enum wl_keyboard_key_state state = state_w;
if (!registry->input->xkb.state) {
return;
}
xkb_keysym_t sym = xkb_state_key_get_one_sym(registry->input->xkb.state, key + 8);
registry->input->sym = (state == WL_KEYBOARD_KEY_STATE_PRESSED ? sym : XKB_KEY_NoSymbol);
registry->input->code = (state == WL_KEYBOARD_KEY_STATE_PRESSED ? key + 8 : 0);
uint32_t codepoint = xkb_state_key_get_utf32(registry->input->xkb.state, registry->input->code);
if (registry->input->notify) {
registry->input->notify(state, sym, key, codepoint);
}
}
static void keyboard_handle_modifiers(void *data, struct wl_keyboard *keyboard,
uint32_t serial, uint32_t mods_depressed, uint32_t mods_latched,
uint32_t mods_locked, uint32_t group) {
struct registry *registry = data;
if (!registry->input->xkb.keymap) {
return;
}
xkb_state_update_mask(registry->input->xkb.state, mods_depressed, mods_latched, mods_locked, 0, 0, group);
xkb_mod_mask_t mask = xkb_state_serialize_mods(registry->input->xkb.state,
XKB_STATE_MODS_DEPRESSED | XKB_STATE_MODS_LATCHED);
registry->input->modifiers = 0;
for (uint32_t i = 0; i < MASK_LAST; ++i) {
if (mask & registry->input->xkb.masks[i]) {
registry->input->modifiers |= XKB_MODS[i];
}
}
}
static void keyboard_handle_repeat_info(void *data, struct wl_keyboard *keyboard,
int32_t rate, int32_t delay) {
// this space intentionally left blank
}
static const struct wl_keyboard_listener keyboard_listener = {
.keymap = keyboard_handle_keymap,
.enter = keyboard_handle_enter,
.leave = keyboard_handle_leave,
.key = keyboard_handle_key,
.modifiers = keyboard_handle_modifiers,
.repeat_info = keyboard_handle_repeat_info
};
static void seat_handle_capabilities(void *data, struct wl_seat *seat,
enum wl_seat_capability caps) {
struct registry *reg = data;
if ((caps & WL_SEAT_CAPABILITY_POINTER) && !reg->pointer) {
reg->pointer = wl_seat_get_pointer(reg->seat);
} else if (!(caps & WL_SEAT_CAPABILITY_POINTER) && reg->pointer) {
wl_pointer_destroy(reg->pointer);
reg->pointer = NULL;
}
if ((caps & WL_SEAT_CAPABILITY_KEYBOARD) && !reg->keyboard) {
reg->keyboard = wl_seat_get_keyboard(reg->seat);
wl_keyboard_add_listener(reg->keyboard, &keyboard_listener, reg);
} else if (!(caps & WL_SEAT_CAPABILITY_KEYBOARD) && reg->keyboard) {
wl_keyboard_destroy(reg->keyboard);
reg->keyboard = NULL;
}
}
static void seat_handle_name(void *data, struct wl_seat *seat, const char *name) {
// this space intentionally left blank
}
static const struct wl_seat_listener seat_listener = {
.capabilities = seat_handle_capabilities,
.name = seat_handle_name,
};
static void registry_global(void *data, struct wl_registry *registry,
uint32_t name, const char *interface, uint32_t version) {
struct registry *reg = data;
if (strcmp(interface, wl_compositor_interface.name) == 0) {
reg->compositor = wl_registry_bind(registry, name, &wl_compositor_interface, version);
} else if (strcmp(interface, wl_shm_interface.name) == 0) {
reg->shm = wl_registry_bind(registry, name, &wl_shm_interface, version);
} else if (strcmp(interface, wl_shell_interface.name) == 0) {
reg->shell = wl_registry_bind(registry, name, &wl_shell_interface, version);
} else if (strcmp(interface, wl_seat_interface.name) == 0) {
reg->seat = wl_registry_bind(registry, name, &wl_seat_interface, version);
wl_seat_add_listener(reg->seat, &seat_listener, reg);
} else if (strcmp(interface, wl_output_interface.name) == 0) {
struct wl_output *output = wl_registry_bind(registry, name, &wl_output_interface, version);
struct output_state *ostate = malloc(sizeof(struct output_state));
ostate->output = output;
ostate->scale = 1;
wl_output_add_listener(output, &output_listener, ostate);
list_add(reg->outputs, ostate);
} else if (strcmp(interface, desktop_shell_interface.name) == 0) {
reg->desktop_shell = wl_registry_bind(registry, name, &desktop_shell_interface, version);
} else if (strcmp(interface, lock_interface.name) == 0) {
reg->swaylock = wl_registry_bind(registry, name, &lock_interface, version);
}
}
static void registry_global_remove(void *data, struct wl_registry *registry, uint32_t name) {
// this space intentionally left blank
}
static const struct wl_registry_listener registry_listener = {
.global = registry_global,
.global_remove = registry_global_remove
};
struct registry *registry_poll(void) {
struct registry *registry = malloc(sizeof(struct registry));
memset(registry, 0, sizeof(struct registry));
registry->outputs = create_list();
registry->input = calloc(sizeof(struct input), 1);
registry->input->xkb.context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
registry->display = wl_display_connect(NULL);
if (!registry->display) {
sway_log(L_ERROR, "Error opening display");
registry_teardown(registry);
return NULL;
}
struct wl_registry *reg = wl_display_get_registry(registry->display);
wl_registry_add_listener(reg, &registry_listener, registry);
wl_display_dispatch(registry->display);
wl_display_roundtrip(registry->display);
wl_registry_destroy(reg);
return registry;
}
void registry_teardown(struct registry *registry) {
if (registry->pointer) {
wl_pointer_destroy(registry->pointer);
}
if (registry->seat) {
wl_seat_destroy(registry->seat);
}
if (registry->shell) {
wl_shell_destroy(registry->shell);
}
if (registry->shm) {
wl_shm_destroy(registry->shm);
}
if (registry->compositor) {
wl_compositor_destroy(registry->compositor);
}
if (registry->display) {
wl_display_disconnect(registry->display);
}
if (registry->outputs) {
free_flat_list(registry->outputs);
}
free(registry);
}

177
wayland/window.c
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@ -1,177 +0,0 @@
#include <wayland-client.h>
#include <wayland-cursor.h>
#include "wayland-xdg-shell-client-protocol.h"
#include "wayland-desktop-shell-client-protocol.h"
#include <cairo/cairo.h>
#include <pango/pangocairo.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <errno.h>
#include <sys/mman.h>
#include "client/window.h"
#include "client/buffer.h"
#include "list.h"
#include "log.h"
static void pointer_handle_enter(void *data, struct wl_pointer *pointer,
uint32_t serial, struct wl_surface *surface, wl_fixed_t sx_w, wl_fixed_t sy_w) {
struct window *window = data;
if (window->registry->pointer) {
struct wl_cursor_image *image = window->cursor.cursor->images[0];
wl_pointer_set_cursor(pointer, serial, window->cursor.surface, image->hotspot_x, image->hotspot_y);
}
}
static void pointer_handle_leave(void *data, struct wl_pointer *pointer,
uint32_t serial, struct wl_surface *surface) {
}
static void pointer_handle_motion(void *data, struct wl_pointer *pointer,
uint32_t time, wl_fixed_t sx_w, wl_fixed_t sy_w) {
struct window *window = data;
window->pointer_input.last_x = wl_fixed_to_int(sx_w);
window->pointer_input.last_y = wl_fixed_to_int(sy_w);
}
static void pointer_handle_button(void *data, struct wl_pointer *pointer, uint32_t serial,
uint32_t time, uint32_t button, uint32_t state_w) {
struct window *window = data;
struct pointer_input *input = &window->pointer_input;
if (window->pointer_input.notify_button) {
window->pointer_input.notify_button(window, input->last_x, input->last_y, button, state_w);
}
}
static void pointer_handle_axis(void *data, struct wl_pointer *pointer,
uint32_t time, uint32_t axis, wl_fixed_t value) {
struct window *window = data;
enum scroll_direction direction;
switch (axis) {
case 0:
direction = wl_fixed_to_double(value) < 0 ? SCROLL_UP : SCROLL_DOWN;
break;
case 1:
direction = wl_fixed_to_double(value) < 0 ? SCROLL_LEFT : SCROLL_RIGHT;
break;
default:
sway_log(L_DEBUG, "Unexpected axis value on mouse scroll");
return;
}
if (window->pointer_input.notify_scroll) {
window->pointer_input.notify_scroll(window, direction);
}
}
static const struct wl_pointer_listener pointer_listener = {
.enter = pointer_handle_enter,
.leave = pointer_handle_leave,
.motion = pointer_handle_motion,
.button = pointer_handle_button,
.axis = pointer_handle_axis
};
void shell_surface_configure(void *data, struct wl_shell_surface *wl_shell_surface,
uint32_t edges, int32_t width, int32_t height) {
struct window *window = data;
window->width = width;
window->height = height;
}
static const struct wl_shell_surface_listener surface_listener = {
.configure = shell_surface_configure
};
void window_make_shell(struct window *window) {
window->shell_surface = wl_shell_get_shell_surface(window->registry->shell, window->surface);
wl_shell_surface_add_listener(window->shell_surface, &surface_listener, window);
wl_shell_surface_set_toplevel(window->shell_surface);
}
struct window *window_setup(struct registry *registry, uint32_t width, uint32_t height,
int32_t scale, bool shell_surface) {
struct window *window = malloc(sizeof(struct window));
memset(window, 0, sizeof(struct window));
window->width = width;
window->height = height;
window->scale = scale;
window->registry = registry;
window->font = "monospace 10";
window->surface = wl_compositor_create_surface(registry->compositor);
if (shell_surface) {
window_make_shell(window);
}
if (registry->pointer) {
wl_pointer_add_listener(registry->pointer, &pointer_listener, window);
}
get_next_buffer(window);
if (registry->pointer) {
char *cursor_theme = getenv("SWAY_CURSOR_THEME");
if (!cursor_theme) {
cursor_theme = "default";
}
char *cursor_size = getenv("SWAY_CURSOR_SIZE");
if (!cursor_size) {
cursor_size = "16";
}
sway_log(L_DEBUG, "Cursor scale: %d", scale);
window->cursor.cursor_theme = wl_cursor_theme_load(cursor_theme,
atoi(cursor_size) * scale, registry->shm);
window->cursor.cursor = wl_cursor_theme_get_cursor(window->cursor.cursor_theme, "left_ptr");
window->cursor.surface = wl_compositor_create_surface(registry->compositor);
struct wl_cursor_image *image = window->cursor.cursor->images[0];
struct wl_buffer *cursor_buf = wl_cursor_image_get_buffer(image);
wl_surface_attach(window->cursor.surface, cursor_buf, 0, 0);
wl_surface_set_buffer_scale(window->cursor.surface, scale);
wl_surface_damage(window->cursor.surface, 0, 0,
image->width, image->height);
wl_surface_commit(window->cursor.surface);
}
return window;
}
static void frame_callback(void *data, struct wl_callback *callback, uint32_t time) {
struct window *window = data;
wl_callback_destroy(callback);
window->frame_cb = NULL;
}
static const struct wl_callback_listener listener = {
frame_callback
};
int window_prerender(struct window *window) {
if (window->frame_cb) {
return 0;
}
get_next_buffer(window);
return 1;
}
int window_render(struct window *window) {
window->frame_cb = wl_surface_frame(window->surface);
wl_callback_add_listener(window->frame_cb, &listener, window);
wl_surface_attach(window->surface, window->buffer->buffer, 0, 0);
wl_surface_set_buffer_scale(window->surface, window->scale);
wl_surface_damage(window->surface, 0, 0, window->width, window->height);
wl_surface_commit(window->surface);
return 1;
}
void window_teardown(struct window *window) {
// TODO
}