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/*
* fbmngplay - fb console MNG player.
* (c) 2001-2002 by Stefan Reinauer, <stepan@suse.de>
*
* This program is based on mngplay, written and (C) by
* Ralph Giles <giles@ashlu.bc.ca>
*
* This program my be redistributed under the terms of the
* GNU General Public Licence, version 2, or at your preference,
* any later version.
*/
#include <unistd.h>
#include <fcntl.h>
#include <getopt.h>
#include <sys/mman.h>
#include <sys/ioctl.h>
#include <linux/fb.h>
#include <signal.h>
#include "fbmngplay.h"
#include "messages.h"
#include "console.h"
#include "mng.h"
volatile int run = 1;
int verbose = 0;
int buffered = 0;
int waitsignal = 0;
int delta = 16;
int sconly = 0;
/*
* Signal handlers
*/
void sigint_handler(int sig)
{
if (waitsignal)
return;
run = 2;
}
void sigterm_handler(int sig)
{
if (waitsignal)
return;
restore_area();
run = 0;
}
void sigusr1_handler(int sig)
{
signal(SIGUSR1, SIG_IGN);
run = 0;
}
/*
* Main loop
*/
int main(int argc, char *argv[])
{
int fbdev, c, option_index;
unsigned int alpha;
struct fb_var_screeninfo var;
struct fb_fix_screeninfo fix;
/* Check which console we're running on */
init_consoles();
/* allocate our stream data structure */
mng = (mngstuff *) calloc(1, sizeof(*mng));
if (mng == NULL) {
fprintf(stderr, "could not allocate stream structure.\n");
exit(0);
}
alpha = 100;
mng->alpha = 100;
mng->fbx = 15;
mng->fby = 15;
mng->background = NULL;
while (1) {
static struct option long_options[] = {
{"help", 0, 0, 'h'},
{"verbose", 0, 0, 'v'},
{"alpha", 1, 0, 'a'},
{"buffered", 0, 0, 'b'},
{"signal", 0, 0, 's'},
{"delta", 0, 0, 'd'},
{"version", 0, 0, 'V'},
{"start-console", 0, 0, 'S'},
{"console", 1, 0, 'c'},
{0, 0, 0, 0}
};
c = getopt_long(argc, argv, "a:x:y:bh?vsd:VSc:",
long_options, &option_index);
if (c == -1)
break;
switch (c) {
case 'a':
alpha = atoi(optarg);
if (alpha > 100)
alpha = 100;
mng->alpha = alpha;
break;
case 'x':
mng->fbx = atoi(optarg);
break;
case 'y':
mng->fby = atoi(optarg);
break;
case 'd':
delta = atoi(optarg);
break;
case '?':
case 'h':
usage(argv[0]);
exit(0);
case 'v':
verbose = 1;
break;
case 's':
waitsignal = 1;
break;
case 'b':
buffered = 1;
break;
case 'V':
version();
exit(0);
case 'c':
start_console = atoi(optarg) - 1;
case 'S':
sconly = 1;
break;
default:
break;
}
}
#if 0
if (!output && optind >= argc) {
#else
if (optind >= argc) {
#endif
printf("Which files do you want to play?\n");
exit(0);
}
/* Initialize framebuffer */
fbdev = open("/dev/fb0", O_RDWR);
if (fbdev < 0) {
fprintf(stderr, "error while opening framebuffer.\n");
exit(fbdev);
}
ioctl(fbdev, FBIOGET_VSCREENINFO, &var);
mng->fbwidth = var.xres;
mng->fbheight = var.yres;
mng->fbbpp = var.bits_per_pixel;
mng->fbredo = var.red.offset;
mng->fbgreeno = var.green.offset;
mng->fbblueo = var.blue.offset;
mng->fbredl = var.red.length;
mng->fbgreenl = var.green.length;
mng->fbbluel = var.blue.length;
/* Display might have a line length unequal
* the visible line.
*/
ioctl(fbdev, FBIOGET_FSCREENINFO, &fix);
mng->fbrow = fix.line_length;
mng->display =
mmap(NULL, mng->fbrow * mng->fbheight,
PROT_WRITE | PROT_READ, MAP_SHARED, fbdev, 0);
#if 0
if (output)
prepare_output();
#endif
/* arrange to call the shutdown routine before we exit */
atexit(&cleanup);
while (optind < argc) {
/* leftover arguements are filenames. */
mng->filename = argv[optind++];
/* set up the mng decoder for our stream */
mng->mng =
mng_initialize(mng, mngalloc, mngfree, MNG_NULL);
if (mng->mng == MNG_NULL) {
fprintf(stderr, "could not initialize libmng.\n");
exit(1);
}
/* set the callbacks */
mng_setcb_errorproc(mng->mng, mngerror);
mng_setcb_openstream(mng->mng, mngopenstream);
mng_setcb_closestream(mng->mng, mngclosestream);
mng_setcb_readdata(mng->mng, mngreadstream);
mng_setcb_gettickcount(mng->mng, mnggetticks);
mng_setcb_settimer(mng->mng, mngsettimer);
mng_setcb_processheader(mng->mng, mngprocessheader);
mng_setcb_getcanvasline(mng->mng, mnggetcanvasline);
mng_setcb_refresh(mng->mng, mngrefresh);
signal(SIGINT, sigint_handler);
signal(SIGTERM, sigterm_handler);
mng_readdisplay(mng->mng);
/* loop though the frames */
while (mng->delay && run) {
usleep(mng->delay * 1000);
mng->delay = 0;
mng_display_resume(mng->mng);
if (run == 2) {
if (mng->alpha == 0)
run = 0;
mng->alpha -= delta;
if (mng->alpha < 0)
mng->alpha = 0;
}
}
if (waitsignal && optind < argc) {
signal(SIGUSR1, sigusr1_handler);
run = 1;
while (run) {
sleep(2);
}
}
memset(mng->copybuffer, 0, 4 * mng->width * mng->height);
run = 1;
mng->alpha = alpha;
if (optind == argc) { /* last file */
restore_area();
}
}
/* cleanup and quit */
return mngquit(mng->mng);
}
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