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#include <stdlib.h>
#include <stdint.h>
#include <stddef.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <ctype.h>
#include <sys/poll.h>
#include "connection.h"
#include "wayland-client.h"
static const char socket_name[] = "\0wayland";
struct wl_buffer {
char data[4096];
int head, tail;
};
struct wl_proxy {
struct wl_display *display;
uint32_t id;
};
struct wl_display {
struct wl_proxy proxy;
struct wl_connection *connection;
int fd;
uint32_t id;
};
struct wl_surface {
struct wl_proxy proxy;
};
struct wl_display *
wl_display_create(const char *address,
wl_connection_update_func_t update, void *data)
{
struct wl_display *display;
struct sockaddr_un name;
socklen_t size;
char buffer[256];
uint32_t id, length;
display = malloc(sizeof *display);
if (display == NULL)
return NULL;
memset(display, 0, sizeof *display);
display->fd = socket(PF_LOCAL, SOCK_STREAM, 0);
if (display->fd < 0) {
free(display);
return NULL;
}
name.sun_family = AF_LOCAL;
memcpy(name.sun_path, address, strlen(address + 1) + 2);
size = offsetof (struct sockaddr_un, sun_path) + sizeof socket_name;
if (connect(display->fd, (struct sockaddr *) &name, size) < 0) {
close(display->fd);
free(display);
return NULL;
}
/* FIXME: We'll need a protocol for getting a new range, I
* guess... */
read(display->fd, &display->id, sizeof display->id);
/* FIXME: actually discover advertised objects here. */
read(display->fd, &id, sizeof id);
read(display->fd, &length, sizeof length);
read(display->fd, buffer, (length + 3) & ~3);
display->proxy.display = display;
display->proxy.id = id;
display->connection = wl_connection_create(display->fd,
update, data);
return display;
}
void
wl_display_destroy(struct wl_display *display)
{
wl_connection_destroy(display->connection);
close(display->fd);
free(display);
}
int
wl_display_get_fd(struct wl_display *display)
{
return display->fd;
}
static void
handle_event(struct wl_connection *connection)
{
uint32_t p[2], opcode, size;
wl_connection_copy(connection, p, sizeof p);
opcode = p[1] & 0xffff;
size = p[1] >> 16;
printf("signal from object %d, opcode %d, size %d\n",
p[0], opcode, size);
wl_connection_consume(connection, sizeof p);
}
void
wl_display_iterate(struct wl_display *display, uint32_t mask)
{
uint32_t p[2], opcode, size;
int len;
len = wl_connection_data(display->connection, mask);
while (len > 0) {
if (len < sizeof p)
break;
wl_connection_copy(display->connection, p, sizeof p);
opcode = p[1] & 0xffff;
size = p[1] >> 16;
if (len < size)
break;
handle_event(display->connection);
}
if (len < 0) {
fprintf(stderr, "read error: %m\n");
exit(EXIT_FAILURE);
}
}
#define WL_DISPLAY_CREATE_SURFACE 0
struct wl_surface *
wl_display_create_surface(struct wl_display *display)
{
struct wl_surface *surface;
uint32_t request[3];
surface = malloc(sizeof *surface);
if (surface == NULL)
return NULL;
surface->proxy.id = display->id++;
surface->proxy.display = display;
request[0] = display->proxy.id;
request[1] = WL_DISPLAY_CREATE_SURFACE | ((sizeof request) << 16);
request[2] = surface->proxy.id;
wl_connection_write(display->connection, request, sizeof request);
return surface;
}
#define WL_SURFACE_DESTROY 0
#define WL_SURFACE_ATTACH 1
#define WL_SURFACE_MAP 2
void wl_surface_destroy(struct wl_surface *surface)
{
uint32_t request[2];
request[0] = surface->proxy.id;
request[1] = WL_SURFACE_DESTROY | ((sizeof request) << 16);
wl_connection_write(surface->proxy.display->connection,
request, sizeof request);
}
void wl_surface_attach(struct wl_surface *surface,
uint32_t name, int width, int height, int stride)
{
uint32_t request[6];
request[0] = surface->proxy.id;
request[1] = WL_SURFACE_ATTACH | ((sizeof request) << 16);
request[2] = name;
request[3] = width;
request[4] = height;
request[5] = stride;
wl_connection_write(surface->proxy.display->connection,
request, sizeof request);
}
void wl_surface_map(struct wl_surface *surface,
int32_t x, int32_t y, int32_t width, int32_t height)
{
uint32_t request[6];
request[0] = surface->proxy.id;
request[1] = WL_SURFACE_MAP | ((sizeof request) << 16);
request[2] = x;
request[3] = y;
request[4] = width;
request[5] = height;
wl_connection_write(surface->proxy.display->connection,
request, sizeof request);
}
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