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/* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/*
Copyright (C) 2010 Red Hat, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "spice-client.h"
#include "spice-common.h"
#include "spice-cmdline.h"
/* config */
static const char *outf = "spicy-screenshot.ppm";
static gboolean version = FALSE;
/* state */
static SpiceSession *session;
static GMainLoop *mainloop;
static enum SpiceSurfaceFmt d_format;
static gint d_width, d_height, d_stride;
static gpointer d_data;
static bool image_grabbed = false;
/* ------------------------------------------------------------------ */
static void primary_create(SpiceChannel *channel, gint format,
gint width, gint height, gint stride,
gint shmid, gpointer imgdata, gpointer data)
{
SPICE_DEBUG("%s: %dx%d, format %d", __FUNCTION__, width, height, format);
d_format = format;
d_width = width;
d_height = height;
d_stride = stride;
d_data = imgdata;
}
static int write_ppm_32(void)
{
FILE *fp;
uint8_t *p;
int n;
fp = fopen(outf,"wb");
if (NULL == fp) {
fprintf(stderr, "%s: can't open %s: %s\n", g_get_prgname(), outf, strerror(errno));
return -1;
}
fprintf(fp, "P6\n%d %d\n255\n",
d_width, d_height);
n = d_width * d_height;
p = d_data;
while (n > 0) {
#if G_BYTE_ORDER == G_BIG_ENDIAN
fputc(p[1], fp);
fputc(p[2], fp);
fputc(p[3], fp);
#else
fputc(p[2], fp);
fputc(p[1], fp);
fputc(p[0], fp);
#endif
p += 4;
n--;
}
fclose(fp);
return 0;
}
static void invalidate(SpiceChannel *channel,
gint x, gint y, gint w, gint h, gpointer *data)
{
int rc;
switch (d_format) {
case SPICE_SURFACE_FMT_32_xRGB:
rc = write_ppm_32();
break;
default:
fprintf(stderr, "unsupported spice surface format %u\n", d_format);
rc = -1;
break;
}
if (rc == 0) {
fprintf(stderr, "wrote screen shot to %s\n", outf);
image_grabbed = true;
}
g_main_loop_quit(mainloop);
}
static void main_channel_event(SpiceChannel *channel, SpiceChannelEvent event,
gpointer data)
{
switch (event) {
case SPICE_CHANNEL_OPENED:
break;
default:
g_warning("main channel event: %u", event);
g_main_loop_quit(mainloop);
}
}
static void channel_new(SpiceSession *s, SpiceChannel *channel, gpointer *data)
{
int id;
if (SPICE_IS_MAIN_CHANNEL(channel)) {
g_signal_connect(channel, "channel-event",
G_CALLBACK(main_channel_event), data);
return;
}
if (!SPICE_IS_DISPLAY_CHANNEL(channel))
return;
g_object_get(channel, "channel-id", &id, NULL);
if (id != 0)
return;
g_signal_connect(channel, "display-primary-create",
G_CALLBACK(primary_create), NULL);
g_signal_connect(channel, "display-invalidate",
G_CALLBACK(invalidate), NULL);
spice_channel_connect(channel);
}
/* ------------------------------------------------------------------ */
static GOptionEntry app_entries[] = {
{
.long_name = "out-file",
.short_name = 'o',
.arg = G_OPTION_ARG_FILENAME,
.arg_data = &outf,
.description = "Output file name (default spicy-screenshot.ppm)",
.arg_description = "<filename>",
},
{
.long_name = "version",
.arg = G_OPTION_ARG_NONE,
.arg_data = &version,
.description = "Display version and quit",
},
{
/* end of list */
}
};
int main(int argc, char *argv[])
{
GError *error = NULL;
GOptionContext *context;
/* parse opts */
context = g_option_context_new(" - make screen shots");
g_option_context_set_summary(context, "A Spice server client to take screenshots in ppm format.");
g_option_context_set_description(context, "Report bugs to " PACKAGE_BUGREPORT ".");
g_option_context_set_main_group(context, spice_cmdline_get_option_group());
g_option_context_add_main_entries(context, app_entries, NULL);
if (!g_option_context_parse (context, &argc, &argv, &error)) {
g_print("option parsing failed: %s\n", error->message);
exit(1);
}
if (version) {
g_print("%s " PACKAGE_VERSION "\n", g_get_prgname());
exit(0);
}
mainloop = g_main_loop_new(NULL, false);
session = spice_session_new();
g_signal_connect(session, "channel-new",
G_CALLBACK(channel_new), NULL);
spice_cmdline_session_setup(session);
if (!spice_session_connect(session)) {
fprintf(stderr, "spice_session_connect failed\n");
exit(1);
}
g_main_loop_run(mainloop);
return image_grabbed ? 0 : 1;
}
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