| /* |
| * Copyright © 2008 Kristian Høgsberg |
| * |
| * 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. |
| */ |
| |
| #include <stdint.h> |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <fcntl.h> |
| #include <unistd.h> |
| #include <sys/mman.h> |
| #include <glib.h> |
| #include <gdk-pixbuf/gdk-pixbuf.h> |
| |
| #include <wayland-client.h> |
| #include "screenshooter-client-protocol.h" |
| |
| /* The screenshooter is a good example of a custom object exposed by |
| * the compositor and serves as a test bed for implementing client |
| * side marshalling outside libwayland.so */ |
| |
| static struct wl_output *output; |
| static struct wl_shm *shm; |
| static struct screenshooter *screenshooter; |
| static int output_width, output_height; |
| |
| static void |
| display_handle_geometry(void *data, |
| struct wl_output *wl_output, |
| int x, |
| int y, |
| int physical_width, |
| int physical_height, |
| int subpixel, |
| const char *make, |
| const char *model) |
| { |
| } |
| |
| static void |
| display_handle_mode(void *data, |
| struct wl_output *wl_output, |
| uint32_t flags, |
| int width, |
| int height, |
| int refresh) |
| { |
| output_width = width; |
| output_height = height; |
| } |
| |
| static const struct wl_output_listener output_listener = { |
| display_handle_geometry, |
| display_handle_mode |
| }; |
| |
| static void |
| handle_global(struct wl_display *display, uint32_t id, |
| const char *interface, uint32_t version, void *data) |
| { |
| if (strcmp(interface, "wl_output") == 0) { |
| output = wl_display_bind(display, id, &wl_output_interface); |
| wl_output_add_listener(output, &output_listener, NULL); |
| } else if (strcmp(interface, "wl_shm") == 0) { |
| shm = wl_display_bind(display, id, &wl_shm_interface); |
| } else if (strcmp(interface, "screenshooter") == 0) { |
| screenshooter = wl_display_bind(display, id, &screenshooter_interface); |
| } |
| } |
| |
| static struct wl_buffer * |
| create_shm_buffer(int width, int height, void **data_out) |
| { |
| char filename[] = "/tmp/wayland-shm-XXXXXX"; |
| struct wl_buffer *buffer; |
| int fd, size, stride; |
| void *data; |
| |
| fd = mkstemp(filename); |
| if (fd < 0) { |
| fprintf(stderr, "open %s failed: %m\n", filename); |
| return NULL; |
| } |
| stride = width * 4; |
| size = stride * height; |
| if (ftruncate(fd, size) < 0) { |
| fprintf(stderr, "ftruncate failed: %m\n"); |
| close(fd); |
| return NULL; |
| } |
| |
| data = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); |
| unlink(filename); |
| |
| if (data == MAP_FAILED) { |
| fprintf(stderr, "mmap failed: %m\n"); |
| close(fd); |
| return NULL; |
| } |
| |
| buffer = wl_shm_create_buffer(shm, fd, width, height, stride, |
| WL_SHM_FORMAT_XRGB32); |
| |
| close(fd); |
| |
| *data_out = data; |
| |
| return buffer; |
| } |
| |
| static void |
| write_png(int width, int height, void *data) |
| { |
| GdkPixbuf *pixbuf, *normal; |
| GError *error = NULL; |
| |
| g_type_init(); |
| pixbuf = gdk_pixbuf_new_from_data(data, GDK_COLORSPACE_RGB, TRUE, |
| 8, width, height, width * 4, NULL, |
| NULL); |
| |
| normal = gdk_pixbuf_flip(pixbuf, FALSE); |
| gdk_pixbuf_save(normal, "wayland-screenshot.png", "png", &error, NULL); |
| g_object_unref(normal); |
| g_object_unref(pixbuf); |
| } |
| |
| int main(int argc, char *argv[]) |
| { |
| struct wl_display *display; |
| struct wl_buffer *buffer; |
| void *data = NULL; |
| |
| display = wl_display_connect(NULL); |
| if (display == NULL) { |
| fprintf(stderr, "failed to create display: %m\n"); |
| return -1; |
| } |
| |
| wl_display_add_global_listener(display, handle_global, &screenshooter); |
| wl_display_iterate(display, WL_DISPLAY_READABLE); |
| wl_display_roundtrip(display); |
| if (screenshooter == NULL) { |
| fprintf(stderr, "display doesn't support screenshooter\n"); |
| return -1; |
| } |
| |
| buffer = create_shm_buffer(output_width, output_height, &data); |
| screenshooter_shoot(screenshooter, output, buffer); |
| wl_display_roundtrip(display); |
| |
| write_png(output_width, output_height, data); |
| |
| return 0; |
| } |