50719bce2a
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
174 lines
4.7 KiB
C
174 lines
4.7 KiB
C
/*
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* Copyright © 2008 Kristian Høgsberg
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting documentation, and
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* that the name of the copyright holders not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. The copyright holders make no representations
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* about the suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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#include <stdint.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/mman.h>
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#include <glib.h>
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include <wayland-client.h>
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#include "screenshooter-client-protocol.h"
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/* The screenshooter is a good example of a custom object exposed by
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* the compositor and serves as a test bed for implementing client
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* side marshalling outside libwayland.so */
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static struct wl_output *output;
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static struct wl_shm *shm;
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static struct screenshooter *screenshooter;
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static int output_width, output_height;
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static void
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display_handle_geometry(void *data,
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struct wl_output *wl_output,
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int x,
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int y,
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int physical_width,
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int physical_height,
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int subpixel,
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const char *make,
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const char *model)
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{
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}
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static void
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display_handle_mode(void *data,
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struct wl_output *wl_output,
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uint32_t flags,
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int width,
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int height,
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int refresh)
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{
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output_width = width;
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output_height = height;
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}
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static const struct wl_output_listener output_listener = {
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display_handle_geometry,
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display_handle_mode
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};
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static void
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handle_global(struct wl_display *display, uint32_t id,
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const char *interface, uint32_t version, void *data)
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{
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if (strcmp(interface, "wl_output") == 0) {
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output = wl_display_bind(display, id, &wl_output_interface);
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wl_output_add_listener(output, &output_listener, NULL);
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} else if (strcmp(interface, "wl_shm") == 0) {
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shm = wl_display_bind(display, id, &wl_shm_interface);
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} else if (strcmp(interface, "screenshooter") == 0) {
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screenshooter = wl_display_bind(display, id, &screenshooter_interface);
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}
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}
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static struct wl_buffer *
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create_shm_buffer(int width, int height, void **data_out)
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{
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char filename[] = "/tmp/wayland-shm-XXXXXX";
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struct wl_buffer *buffer;
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int fd, size, stride;
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void *data;
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fd = mkstemp(filename);
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if (fd < 0) {
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fprintf(stderr, "open %s failed: %m\n", filename);
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return NULL;
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}
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stride = width * 4;
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size = stride * height;
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if (ftruncate(fd, size) < 0) {
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fprintf(stderr, "ftruncate failed: %m\n");
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close(fd);
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return NULL;
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}
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data = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
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unlink(filename);
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if (data == MAP_FAILED) {
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fprintf(stderr, "mmap failed: %m\n");
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close(fd);
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return NULL;
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}
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buffer = wl_shm_create_buffer(shm, fd, width, height, stride,
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WL_SHM_FORMAT_XRGB32);
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close(fd);
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*data_out = data;
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return buffer;
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}
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static void
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write_png(int width, int height, void *data)
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{
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GdkPixbuf *pixbuf, *normal;
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GError *error = NULL;
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g_type_init();
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pixbuf = gdk_pixbuf_new_from_data(data, GDK_COLORSPACE_RGB, TRUE,
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8, width, height, width * 4, NULL,
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NULL);
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normal = gdk_pixbuf_flip(pixbuf, FALSE);
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gdk_pixbuf_save(normal, "wayland-screenshot.png", "png", &error, NULL);
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g_object_unref(normal);
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g_object_unref(pixbuf);
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}
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int main(int argc, char *argv[])
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{
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struct wl_display *display;
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struct wl_buffer *buffer;
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void *data = NULL;
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display = wl_display_connect(NULL);
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if (display == NULL) {
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fprintf(stderr, "failed to create display: %m\n");
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return -1;
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}
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wl_display_add_global_listener(display, handle_global, &screenshooter);
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wl_display_iterate(display, WL_DISPLAY_READABLE);
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wl_display_roundtrip(display);
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if (screenshooter == NULL) {
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fprintf(stderr, "display doesn't support screenshooter\n");
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return -1;
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}
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buffer = create_shm_buffer(output_width, output_height, &data);
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screenshooter_shoot(screenshooter, output, buffer);
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wl_display_roundtrip(display);
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write_png(output_width, output_height, data);
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return 0;
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}
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