static struct buffer *
window_next_buffer(struct window *window)
{
struct buffer *buffer;
int ret = 0;
if (!window->buffers[0].busy)
buffer = &window->buffers[0];
else if (!window->buffers[1].busy)
buffer = &window->buffers[1];
else
return NULL;
if (!buffer->buffer) {
ret = create_shm_buffer(window->display, buffer,
window->width, window->height,
WL_SHM_FORMAT_XRGB8888);
if (ret < 0)
return NULL;
/* paint the padding */
memset(buffer->shm_data, 0xff,
window->width * window->height * 4);
}
return buffer;
}
static struct window *
create_window(struct display *display, int width, int height)
{
struct window *window;
window = malloc(sizeof *window);
window->buffer = create_shm_buffer(display,
width, height,
WL_SHM_FORMAT_XRGB8888,
&window->shm_data);
if (!window->buffer) {
free(window);
return NULL;
}
window->callback = NULL;
window->display = display;
window->width = width;
window->height = height;
window->surface = wl_compositor_create_surface(display->compositor);
window->shell_surface = wl_shell_get_shell_surface(display->shell,
window->surface);
if (window->shell_surface)
wl_shell_surface_add_listener(window->shell_surface,
&shell_surface_listener, window);
wl_shell_surface_set_toplevel(window->shell_surface);
return window;
}
struct client *
client_create(int x, int y, int width, int height)
{
struct client *client;
struct surface *surface;
wl_log_set_handler_client(log_handler);
/* connect to display */
client = xzalloc(sizeof *client);
client->wl_display = wl_display_connect(NULL);
assert(client->wl_display);
wl_list_init(&client->global_list);
/* setup registry so we can bind to interfaces */
client->wl_registry = wl_display_get_registry(client->wl_display);
wl_registry_add_listener(client->wl_registry, ®istry_listener, client);
/* trigger global listener */
wl_display_dispatch(client->wl_display);
wl_display_roundtrip(client->wl_display);
/* must have WL_SHM_FORMAT_ARGB32 */
assert(client->has_argb);
/* must have wl_test interface */
assert(client->test);
/* must have an output */
assert(client->output);
/* initialize the client surface */
surface = xzalloc(sizeof *surface);
surface->wl_surface =
wl_compositor_create_surface(client->wl_compositor);
assert(surface->wl_surface);
wl_surface_add_listener(surface->wl_surface, &surface_listener,
surface);
client->surface = surface;
wl_surface_set_user_data(surface->wl_surface, surface);
surface->width = width;
surface->height = height;
surface->wl_buffer = create_shm_buffer(client, width, height,
&surface->data);
memset(surface->data, 64, width * height * 4);
move_client(client, x, y);
return client;
}
/** create_screenshot_surface()
*
* Allocates and initializes a weston test surface for use in
* storing a screenshot of the client's output. Establishes a
* shm backed wl_buffer for retrieving screenshot image data
* from the server, sized to match the client's output display.
*
* @returns stack allocated surface image, which should be
* free'd when done using it.
*/
static struct surface*
create_screenshot_surface(struct client *client)
{
struct surface* screenshot;
screenshot = xzalloc(sizeof *screenshot);
if (screenshot == NULL)
return NULL;
screenshot->wl_buffer = create_shm_buffer(client,
client->output->width,
client->output->height,
&screenshot->data);
screenshot->height = client->output->height;
screenshot->width = client->output->width;
return screenshot;
}
static struct touch *
touch_create(int width, int height)
{
struct touch *touch;
touch = malloc(sizeof *touch);
if (touch == NULL) {
fprintf(stderr, "out of memory\n");
exit(1);
}
touch->display = wl_display_connect(NULL);
assert(touch->display);
touch->has_argb = 0;
touch->registry = wl_display_get_registry(touch->display);
wl_registry_add_listener(touch->registry, ®istry_listener, touch);
wl_display_dispatch(touch->display);
wl_display_roundtrip(touch->display);
if (!touch->has_argb) {
fprintf(stderr, "WL_SHM_FORMAT_ARGB32 not available\n");
exit(1);
}
touch->width = width;
touch->height = height;
touch->surface = wl_compositor_create_surface(touch->compositor);
touch->shell_surface = wl_shell_get_shell_surface(touch->shell,
touch->surface);
create_shm_buffer(touch);
if (touch->shell_surface) {
wl_shell_surface_add_listener(touch->shell_surface,
&shell_surface_listener, touch);
wl_shell_surface_set_toplevel(touch->shell_surface);
}
wl_surface_set_user_data(touch->surface, touch);
wl_shell_surface_set_title(touch->shell_surface, "simple-touch");
memset(touch->data, 64, width * height * 4);
wl_surface_attach(touch->surface, touch->buffer, 0, 0);
wl_surface_damage(touch->surface, 0, 0, width, height);
wl_surface_commit(touch->surface);
return touch;
}
static struct buffer *
window_next_buffer(struct window *window)
{
struct buffer *buffer;
int ret = 0, bwidth, bheight;
if (!window->buffers[0].busy)
buffer = &window->buffers[0];
else if (!window->buffers[1].busy)
buffer = &window->buffers[1];
else
return NULL;
switch (window->transform) {
default:
case WL_OUTPUT_TRANSFORM_NORMAL:
case WL_OUTPUT_TRANSFORM_180:
case WL_OUTPUT_TRANSFORM_FLIPPED:
case WL_OUTPUT_TRANSFORM_FLIPPED_180:
bwidth = window->width * window->scale;
bheight = window->height * window->scale;
break;
case WL_OUTPUT_TRANSFORM_90:
case WL_OUTPUT_TRANSFORM_270:
case WL_OUTPUT_TRANSFORM_FLIPPED_90:
case WL_OUTPUT_TRANSFORM_FLIPPED_270:
bwidth = window->height * window->scale;
bheight = window->width * window->scale;
break;
}
if (!buffer->buffer) {
ret = create_shm_buffer(window->display, buffer,
bwidth, bheight,
WL_SHM_FORMAT_ARGB8888);
if (ret < 0)
return NULL;
}
return buffer;
}
