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Start fleshing out wayland client implementation

Browse Source 
This introduces a basic shared framework for making wayland clients
within sway itself.
master
Drew DeVault 9 years ago
parent 5c4e98aa4e
commit bfcabe48ef
8 changed files with 370 additions and 92 deletions
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4
CMakeLists.txt
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@ -4,7 +4,7 @@ set(CMAKE_C_FLAGS "-g")
set(CMAKE_C_STANDARD 99) set(CMAKE_C_STANDARD 99)
SET(CMAKE_C_EXTENSIONS OFF) SET(CMAKE_C_EXTENSIONS OFF)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "bin/") set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "bin/")
add_definitions("-Wall -Wextra -Wno-unused-parameter") add_definitions("-Wall -Wextra -Wno-unused-parameter -D_GNU_SOURCE")
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${PROJECT_SOURCE_DIR}/CMake) set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${PROJECT_SOURCE_DIR}/CMake)
add_subdirectory(swaybg swaybg) add_subdirectory(swaybg swaybg)
@ -44,6 +44,7 @@ find_package(PCRE REQUIRED)
find_package(JsonC REQUIRED) find_package(JsonC REQUIRED)
FILE(GLOB sources ${PROJECT_SOURCE_DIR}/sway/*.c) FILE(GLOB sources ${PROJECT_SOURCE_DIR}/sway/*.c)
FILE(GLOB common ${PROJECT_SOURCE_DIR}/common/*.c)
include_directories( include_directories(
${WLC_INCLUDE_DIRS} ${WLC_INCLUDE_DIRS}
@ -55,6 +56,7 @@ include_directories(
add_executable(sway add_executable(sway
${sources} ${sources}
${common}
) )
target_link_libraries(sway target_link_libraries(sway

0
sway/list.c → common/list.c
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88
sway/log.c → common/log.c
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@ -157,91 +157,3 @@ void error_handler(int sig) {
} }
exit(1); exit(1);
} }
#include "workspace.h"
/* XXX:DEBUG:XXX */
static void container_log(const swayc_t *c) {
fprintf(stderr, "focus:%c|",
c == get_focused_view(&root_container) ? 'K':
c == get_focused_container(&root_container) ? 'F' : // Focused
c == swayc_active_workspace() ? 'W' : // active workspace
c == &root_container ? 'R' : // root
'X');// not any others
fprintf(stderr,"(%p)",c);
fprintf(stderr,"(p:%p)",c->parent);
fprintf(stderr,"(f:%p)",c->focused);
fprintf(stderr,"(h:%ld)",c->handle);
fprintf(stderr,"Type:");
fprintf(stderr,
c->type == C_ROOT ? "Root|" :
c->type == C_OUTPUT ? "Output|" :
c->type == C_WORKSPACE ? "Workspace|" :
c->type == C_CONTAINER ? "Container|" :
c->type == C_VIEW ? "View|" : "Unknown|");
fprintf(stderr,"layout:");
fprintf(stderr,
c->layout == L_NONE ? "NONE|" :
c->layout == L_HORIZ ? "Horiz|":
c->layout == L_VERT ? "Vert|":
c->layout == L_STACKED ? "Stacked|":
c->layout == L_FLOATING ? "Floating|":
"Unknown|");
fprintf(stderr, "w:%.f|h:%.f|", c->width, c->height);
fprintf(stderr, "x:%.f|y:%.f|", c->x, c->y);
fprintf(stderr, "g:%d|",c->gaps);
fprintf(stderr, "vis:%c|", c->visible?'t':'f');
fprintf(stderr, "name:%.16s|", c->name);
fprintf(stderr, "children:%d\n",c->children?c->children->length:0);
}
void layout_log(const swayc_t *c, int depth) {
if (L_DEBUG > v) return;
int i, d;
int e = c->children ? c->children->length : 0;
container_log(c);
if (e) {
for (i = 0; i < e; ++i) {
fputc('|',stderr);
for (d = 0; d < depth; ++d) fputc('-', stderr);
layout_log(c->children->items[i], depth + 1);
}
}
if (c->type == C_WORKSPACE) {
e = c->floating?c->floating->length:0;
if (e) {
for (i = 0; i < e; ++i) {
fputc('|',stderr);
for (d = 0; d < depth; ++d) fputc('=', stderr);
layout_log(c->floating->items[i], depth + 1);
}
}
}
}
const char *swayc_type_string(enum swayc_types type) {
return type == C_ROOT ? "ROOT" :
type == C_OUTPUT ? "OUTPUT" :
type == C_WORKSPACE ? "WORKSPACE" :
type == C_CONTAINER ? "CONTAINER" :
type == C_VIEW ? "VIEW" :
"UNKNOWN";
}
// Like sway_log, but also appends some info about given container to log output.
void swayc_log(log_importance_t verbosity, swayc_t *cont, const char* format, ...) {
sway_assert(cont, "swayc_log: no container ...");
va_list args;
va_start(args, format);
char *txt = malloc(128);
vsprintf(txt, format, args);
va_end(args);
char *debug_txt = malloc(32);
snprintf(debug_txt, 32, "%s '%s'", swayc_type_string(cont->type), cont->name);
sway_log(verbosity, "%s (%s)", txt, debug_txt);
free(txt);
free(debug_txt);
}
/* XXX:DEBUG:XXX */

43
include/client.h
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@ -0,0 +1,43 @@
#ifndef _CLIENT_H
#define _CLIENT_H
#include <wayland-client.h>
#include <cairo/cairo.h>
#include <pango/pangocairo.h>
#include "list.h"
struct output_state {
struct wl_output *output;
uint32_t flags;
int width, height;
};
struct buffer {
struct wl_buffer *buffer;
struct wl_shm_pool *pool;
uint32_t width, height;
};
struct client_state {
struct wl_compositor *compositor;
struct wl_display *display;
struct wl_pointer *pointer;
struct wl_seat *seat;
struct wl_shell *shell;
struct wl_shm *shm;
struct buffer *buffer;
struct wl_surface *surface;
struct wl_shell_surface *shell_surface;
cairo_t *cairo;
cairo_surface_t *cairo_surface;
PangoContext *pango;
list_t *outputs;
};
struct client_state *client_setup(void);
void client_teardown(struct client_state *state);
struct buffer *create_memory_pool(struct client_state *state, int32_t width, int32_t height, uint32_t format);
int client_prerender(struct client_state *state);
int client_render(struct client_state *state);
#endif

102
sway/debug_log.c
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@ -0,0 +1,102 @@
#include "log.h"
#include "sway.h"
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <libgen.h>
#include <fcntl.h>
#include <unistd.h>
#include <signal.h>
#include <errno.h>
#include <string.h>
#include <stringop.h>
#include <execinfo.h>
#include "workspace.h"
extern log_importance_t v;
/* XXX:DEBUG:XXX */
static void container_log(const swayc_t *c) {
fprintf(stderr, "focus:%c|",
c == get_focused_view(&root_container) ? 'K':
c == get_focused_container(&root_container) ? 'F' : // Focused
c == swayc_active_workspace() ? 'W' : // active workspace
c == &root_container ? 'R' : // root
'X');// not any others
fprintf(stderr,"(%p)",c);
fprintf(stderr,"(p:%p)",c->parent);
fprintf(stderr,"(f:%p)",c->focused);
fprintf(stderr,"(h:%ld)",c->handle);
fprintf(stderr,"Type:");
fprintf(stderr,
c->type == C_ROOT ? "Root|" :
c->type == C_OUTPUT ? "Output|" :
c->type == C_WORKSPACE ? "Workspace|" :
c->type == C_CONTAINER ? "Container|" :
c->type == C_VIEW ? "View|" : "Unknown|");
fprintf(stderr,"layout:");
fprintf(stderr,
c->layout == L_NONE ? "NONE|" :
c->layout == L_HORIZ ? "Horiz|":
c->layout == L_VERT ? "Vert|":
c->layout == L_STACKED ? "Stacked|":
c->layout == L_FLOATING ? "Floating|":
"Unknown|");
fprintf(stderr, "w:%.f|h:%.f|", c->width, c->height);
fprintf(stderr, "x:%.f|y:%.f|", c->x, c->y);
fprintf(stderr, "g:%d|",c->gaps);
fprintf(stderr, "vis:%c|", c->visible?'t':'f');
fprintf(stderr, "name:%.16s|", c->name);
fprintf(stderr, "children:%d\n",c->children?c->children->length:0);
}
void layout_log(const swayc_t *c, int depth) {
if (L_DEBUG > v) return;
int i, d;
int e = c->children ? c->children->length : 0;
container_log(c);
if (e) {
for (i = 0; i < e; ++i) {
fputc('|',stderr);
for (d = 0; d < depth; ++d) fputc('-', stderr);
layout_log(c->children->items[i], depth + 1);
}
}
if (c->type == C_WORKSPACE) {
e = c->floating?c->floating->length:0;
if (e) {
for (i = 0; i < e; ++i) {
fputc('|',stderr);
for (d = 0; d < depth; ++d) fputc('=', stderr);
layout_log(c->floating->items[i], depth + 1);
}
}
}
}
const char *swayc_type_string(enum swayc_types type) {
return type == C_ROOT ? "ROOT" :
type == C_OUTPUT ? "OUTPUT" :
type == C_WORKSPACE ? "WORKSPACE" :
type == C_CONTAINER ? "CONTAINER" :
type == C_VIEW ? "VIEW" :
"UNKNOWN";
}
// Like sway_log, but also appends some info about given container to log output.
void swayc_log(log_importance_t verbosity, swayc_t *cont, const char* format, ...) {
sway_assert(cont, "swayc_log: no container ...");
va_list args;
va_start(args, format);
char *txt = malloc(128);
vsprintf(txt, format, args);
va_end(args);
char *debug_txt = malloc(32);
snprintf(debug_txt, 32, "%s '%s'", swayc_type_string(cont->type), cont->name);
sway_log(verbosity, "%s (%s)", txt, debug_txt);
free(txt);
free(debug_txt);
}
/* XXX:DEBUG:XXX */

10
swaybg/CMakeLists.txt
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@ -9,14 +9,20 @@ WAYLAND_ADD_PROTOCOL_CLIENT(proto-xdg-shell "xdg-shell.xml" xdg-shell)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "../bin/") set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "../bin/")
include_directories( include_directories(
${CMAKE_CURRENT_SOURCE_DIR}/include ${CMAKE_CURRENT_SOURCE_DIR}/../include
${WAYLAND_CLIENT_INCLUDE_DIR} ${WAYLAND_CLIENT_INCLUDE_DIR}
${CAIRO_INCLUDE_DIRS} ${CAIRO_INCLUDE_DIRS}
${PANGO_INCLUDE_DIRS} ${PANGO_INCLUDE_DIRS}
) )
FILE(GLOB sources ${PROJECT_SOURCE_DIR}/*.c)
FILE(GLOB wl_sources ${PROJECT_SOURCE_DIR}/../wayland/*.c)
FILE(GLOB common ${PROJECT_SOURCE_DIR}/../common/*.c)
add_executable(swaybg add_executable(swaybg
main.c ${sources}
${wl_sources}
${common}
) )
TARGET_LINK_LIBRARIES(swaybg ${WAYLAND_CLIENT_LIBRARIES} ${CAIRO_LIBRARIES} ${PANGO_LIBRARIES}) TARGET_LINK_LIBRARIES(swaybg ${WAYLAND_CLIENT_LIBRARIES} ${CAIRO_LIBRARIES} ${PANGO_LIBRARIES})

23
swaybg/main.c
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@ -1,6 +1,27 @@
#include <stdio.h> #include <stdio.h>
#include <stdlib.h>
#include <wayland-client.h>
#include "client.h"
#include "log.h"
struct client_state *state;
void sway_terminate(void) {
client_teardown(state);
exit(1);
}
int main(int argc, char **argv) { int main(int argc, char **argv) {
printf("Hello world"); init_log(L_INFO);
state = client_setup();
do {
if (!client_prerender(state)) continue;
cairo_set_source_rgb(state->cairo, 255, 0, 0);
cairo_rectangle(state->cairo, 0, 0, 100, 100);
cairo_fill(state->cairo);
} while (client_render(state));
client_teardown(state);
return 0; return 0;
} }

192
wayland/client.c
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@ -0,0 +1,192 @@
#include <wayland-client.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.h"
#include "list.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;
}
}
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) {
// this space intentionally left blank
}
static const struct wl_output_listener output_listener = {
.mode = display_handle_mode,
.geometry = display_handle_geometry,
.done = display_handle_done,
.scale = display_handle_scale
};
static void registry_global(void *data, struct wl_registry *registry,
uint32_t name, const char *interface, uint32_t version) {
struct client_state *state = data;
if (strcmp(interface, wl_compositor_interface.name) == 0) {
state->compositor = wl_registry_bind(registry, name, &wl_compositor_interface, version);
} else if (strcmp(interface, wl_shm_interface.name) == 0) {
state->shm = wl_registry_bind(registry, name, &wl_shm_interface, version);
} else if (strcmp(interface, wl_shell_interface.name) == 0) {
state->shell = wl_registry_bind(registry, name, &wl_shell_interface, version);
} else if (strcmp(interface, wl_seat_interface.name) == 0) {
state->seat = wl_registry_bind(registry, name, &wl_seat_interface, version);
state->pointer = wl_seat_get_pointer(state->seat);
} 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;
wl_output_add_listener(output, &output_listener, ostate);
list_add(state->outputs, ostate);
}
}
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
};
static int create_pool_file(size_t size) {
static const char template[] = "/swaybg-XXXXXX";
const char *path = getenv("XDG_RUNTIME_DIR");
if (!path) {
return -1;
}
int ts = (path[strlen(path) - 1] == '/');
char *name = malloc(
strlen(template) +
strlen(path) +
(ts ? 1 : 0) + 1);
sprintf(name, "%s%s%s", path, ts ? "" : "/", template);
int fd = mkstemp(name);
free(name);
if (fd < 0) {
return -1;
}
if (ftruncate(fd, size) < 0) {
close(fd);
return -1;
}
return fd;
}
struct buffer *create_buffer(struct client_state *state,
int32_t width, int32_t height, uint32_t format) {
struct buffer *buf = malloc(sizeof(struct buffer));
memset(buf, 0, sizeof(struct buffer));
uint32_t stride = width * 4;
uint32_t size = stride * height;
int fd = create_pool_file(size);
void *data = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
buf->pool = wl_shm_create_pool(state->shm, fd, size);
buf->buffer = wl_shm_pool_create_buffer(buf->pool, 0, width, height, stride, format);
state->cairo_surface = cairo_image_surface_create_for_data(data, CAIRO_FORMAT_ARGB32, width, height, stride);
state->cairo = cairo_create(state->cairo_surface);
state->pango = pango_cairo_create_context(state->cairo);
sway_log(L_INFO, "%p %p", buf->pool, buf->buffer);
return buf;
}
struct client_state *client_setup(void) {
struct client_state *state = malloc(sizeof(struct client_state));
memset(state, 0, sizeof(struct client_state));
state->outputs = create_list();
state->display = wl_display_connect(NULL);
if (!state->display) {
sway_log(L_ERROR, "Error opening display");
client_teardown(state);
return NULL;
}
struct wl_registry *registry = wl_display_get_registry(state->display);
wl_registry_add_listener(registry, &registry_listener, state);
wl_display_roundtrip(state->display); // globals
wl_display_roundtrip(state->display); // listeners
wl_registry_destroy(registry);
state->buffer = create_buffer(state, 100, 100, WL_SHM_FORMAT_ARGB8888);
state->surface = wl_compositor_create_surface(state->compositor);
state->shell_surface = wl_shell_get_shell_surface(state->shell, state->surface);
wl_shell_surface_set_toplevel(state->shell_surface);
wl_surface_damage(state->surface, 0, 0, 100, 100);
wl_surface_attach(state->surface, state->buffer->buffer, 0, 0);
wl_surface_commit(state->surface);
return state;
}
int client_prerender(struct client_state *state) {
wl_display_dispatch_pending(state->display);
if (wl_display_flush(state->display) < 0 && errno != EAGAIN) {
return 0;
}
return 1;
}
int client_render(struct client_state *state) {
return wl_display_dispatch(state->display) != -1;
}
void client_teardown(struct client_state *state) {
if (state->pointer) {
wl_pointer_destroy(state->pointer);
}
if (state->seat) {
wl_seat_destroy(state->seat);
}
if (state->shell) {
wl_shell_destroy(state->shell);
}
if (state->shm) {
wl_shm_destroy(state->shm);
}
if (state->compositor) {
wl_compositor_destroy(state->compositor);
}
if (state->display) {
wl_display_disconnect(state->display);
}
if (state->outputs) {
// TODO: Free the outputs themselves
list_free(state->outputs);
}
}
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