int
main(int ac, char **av)
{
int x;
char *file = (char *)NULL;
pid_t pid = 0;
int uucpstyle = FALSE; /* indicating UUCP style locks */
int only_check = TRUE; /* don't make a lock */
Pname = ((Pname = strrchr(av[0], '/')) ? Pname + 1 : av[0]);
for(x = 1; x < ac; x++) {
if (av[x][0] == '-') {
switch(av[x][1]) {
case 'u':
uucpstyle = TRUE;
break;
case 'd':
Debug = TRUE;
break;
case 'p':
if (strlen(av[x]) > 2) {
pid = atoi(&av[x][2]);
} else {
if (++x >= ac) {
bad_usage();
}
pid = atoi(av[x]);
}
only_check = FALSE; /* wants one */
break;
case 'f':
if (strlen(av[x]) > 2) {
file = &av[x][2];
} else {
if (++x >= ac) {
bad_usage();
}
file = av[x];
}
break;
default:
bad_usage();
}
}
}
if (file == (char *)NULL || (!only_check && pid <= 0)) {
bad_usage();
}
if (only_check) {
exit(cklock(file, uucpstyle) ? LOCK_GOOD : LOCK_BAD);
}
exit(mklock(file, pid, uucpstyle) ? LOCK_SET : LOCK_FAIL);
}
/* public api */
void parse_options(int argc, char **argv)
{
int opt;
setup_default_config(&config);
while((opt = getopt_long(argc, argv, "+p:nhvV", long_options, NULL)) != -1) {
switch(opt) {
case 'p':
set_prefix(optarg);
break;
case 'v':
config.is_verbose++;
break;
case 'h':
print_usage(argv[0]);
exit(0);
break;
case 'V':
print_version();
exit(0);
break;
case 'n':
config.no_hide = 1;
break;
case 's':
config.stub = 1;
break;
default:
bad_usage(argv[0]);
exit(-1);
}
}
if (argc - optind != 2) {
bad_usage(argv[0]);
exit(-1);
}
/* if no prefix is given we use a default prefix build on output name */
if (!config.prefix && argv[optind + 1]) {
char *bn = basename(strdup(argv[optind + 1]));
char *last_dot = rindex(bn, '.');
if (last_dot)
*last_dot = '\0';
config.prefix = strcat(bn, "_");
}
}
int main(int argc, char** argv)
{
char *executable, *path;
char *resolved_location;
char **real_argv;
size_t name_arg;
const char *ignore_prefix = NULL;
const char *home;
char *replace_dir;
bool use_basename = false;
program_name = strrchr(argv[0], '/');
if (program_name == NULL) {
program_name = argv[0];
} else {
++program_name;
}
home = getenv("HOME");
if (home == NULL) {
fatal_error("HOME is not defined");
}
{
size_t home_len = strlen(home);
size_t replace_len = home_len + 1 + strlen(REPLACE_COMMAND_DIR);
replace_dir = xmalloc(replace_len + 1);
memcpy(replace_dir, home, home_len);
replace_dir[home_len] = '/';
memcpy(replace_dir + home_len + 1, REPLACE_COMMAND_DIR,
strlen(REPLACE_COMMAND_DIR));
replace_dir[replace_len] = '\0';
}
for (name_arg = 1; name_arg != argc; ++name_arg) {
const char *arg = argv[name_arg];
if (arg[0] == '\0') {
bad_usage("Empty executable name argument");
}
if (arg[0] == '-') {
if (0 == strcmp(arg, "--ignore-home")) {
ignore_prefix = home;
} else if (0 == strcmp(arg, "--use-basename")) {
use_basename = true;
} else if (0 == strcmp(arg, "--help")) {
show_usage(replace_dir);
} else if (0 == strcmp(arg, "--version")) {
show_version(replace_dir);
} else if (0 == strcmp(arg, "--")) {
++name_arg;
break;
} else {
bad_usage("Unknown option '%s'", arg);
}
continue;
}
break;
}
if (name_arg == argc) {
bad_usage("Missed executable name argument");
}
executable = argv[name_arg];
if (!use_basename) {
if (strchr(executable, '/') != NULL) {
bad_usage("Execute name should not contain '/': %s",
executable);
}
} else {
char* last_slash = strrchr(executable, '/');
if (last_slash != NULL) {
executable = last_slash + 1;
}
}
path = getenv("PATH");
if (path == NULL || path[0] == '\0') {
fatal_error("$PATH is not defined");
}
resolved_location = locate_next_exec(
path, replace_dir, executable, ignore_prefix);
real_argv = xmalloc(sizeof(real_argv[0]) * (argc - name_arg + 1));
real_argv[0] = executable;
memcpy(real_argv + 1, argv + name_arg + 1,
sizeof(real_argv[0]) * (argc - name_arg - 1));
real_argv[argc - name_arg] = NULL;
execv(resolved_location, real_argv);
fatal_error("Failed to execute '%s': %s", resolved_location, strerror(errno));
return 0;
}
int main(int argc, char *argv[])
{
const char *home;
char chanfile[2 * PATH_MAX];
int list_channels = 0;
unsigned int chan_no = 0;
const char *chan_name = NULL;
unsigned int adapter = 0, frontend = 0, demux = 0, dvr = 0, rec_psi = 0;
int bypass = 0;
int opt, copt = 0;
int human_readable = 0;
lnb_type = *lnb_enum(0);
while ((opt = getopt(argc, argv, "Hhqrpn:a:f:d:c:l:xib")) != -1) {
switch (opt) {
case '?':
case 'h':
default:
bad_usage(argv[0], 0);
case 'b':
bypass = 1;
break;
case 'q':
list_channels = 1;
break;
case 'r':
dvr = 1;
break;
case 'n':
chan_no = strtoul(optarg, NULL, 0);
break;
case 'a':
adapter = strtoul(optarg, NULL, 0);
break;
case 'f':
frontend = strtoul(optarg, NULL, 0);
break;
case 'p':
rec_psi = 1;
break;
case 'd':
demux = strtoul(optarg, NULL, 0);
break;
case 'c':
copt = 1;
strncpy(chanfile, optarg, sizeof(chanfile));
break;
case 'l':
if (lnb_decode(optarg, &lnb_type) < 0) {
bad_usage(argv[0], 1);
return -1;
}
break;
case 'x':
exit_after_tuning = 1;
break;
case 'H':
human_readable = 1;
break;
case 'i':
interactive = 1;
exit_after_tuning = 1;
}
}
lnb_type.low_val *= 1000; /* convert to kiloherz */
lnb_type.high_val *= 1000; /* convert to kiloherz */
lnb_type.switch_val *= 1000; /* convert to kiloherz */
if (optind < argc)
chan_name = argv[optind];
if (chan_name && chan_no) {
bad_usage(argv[0], 0);
return -1;
}
if (list_channels && (chan_name || chan_no)) {
bad_usage(argv[0], 0);
return -1;
}
if (!list_channels && !chan_name && !chan_no && !interactive) {
bad_usage(argv[0], 0);
return -1;
}
if (!copt) {
if (!(home = getenv("HOME"))) {
fprintf(stderr, "error: $HOME not set\n");
return TRUE;
}
snprintf(chanfile,
sizeof(chanfile),
"%s/.szap/%i/%s",
home,
adapter,
CHANNEL_FILE);
if (access(chanfile, R_OK))
snprintf(chanfile,
sizeof(chanfile),
"%s/.szap/%s",
home,
CHANNEL_FILE);
}
printf("reading channels from file '%s'\n", chanfile);
if (rec_psi)
dvr=1;
if (!read_channels(chanfile,
list_channels,
chan_no,
chan_name,
adapter,
frontend,
demux,
dvr,
rec_psi,
bypass,
human_readable))
return TRUE;
return FALSE;
}
int main(int argc, char **argv)
{
program_name = argv[0];
char *test_dir = NULL;
bool base_failures = false;
bool retest_failures = false;
bool show_output = false;
char opt;
while ((opt = getopt(argc, argv, "bfhot:")) != -1) {
switch (opt) {
case 'b':
base_failures = true;
break;
case 'f':
retest_failures = true;
break;
case 'o':
show_output = true;
break;
case 'h':
usage();
case 't':
free(test_dir);
test_dir = xstrdup(optarg);
default:
bad_usage(NULL);
}
}
if (optind == argc)
bad_usage("missing BUILD_DIR argument");
char *build_dir = argv[optind];
if (optind + 1 < argc)
bad_usage("too many arguments");
if (base_failures && retest_failures)
bad_usage("only one of -b or -f can be given");
if (!test_dir)
test_dir = home_path(test_dir_path);
if (chdir(build_dir))
perror_and_abort();
char *exec_args[9];
size_t n = 0;
char *test_driver = concat_path(test_dir, "jstests.py");
exec_args[n++] = test_driver;
exec_args[n++] = test_driver;
exec_args[n++] = "--timeout=20";
if (retest_failures) {
exec_args[n++] = xasprintf("--file=%s/%s", build_dir, "failures.txt");
} else if (base_failures){
exec_args[n++] = xasprintf("--failure-file=%s/%s", build_dir, "base_failures.txt");
} else {
exec_args[n++] = xasprintf("--failure-file=%s/%s", build_dir, "failures.txt");
exec_args[n++] = xasprintf("--exclude-file=%s/%s", build_dir, "base_failures.txt");
}
if (show_output) {
exec_args[n++] = "-s";
exec_args[n++] = "-o";
}
exec_args[n++] = xasprintf("%s/%s", build_dir, "js");
exec_args[n++] = NULL;
assert(n <= sizeof(exec_args) / sizeof(exec_args[0]));
execvp("python", exec_args);
perror_and_abort();
}
/**
* basic options needed
* @adapter
* @frontend
* @freq (Mhz)
* @pol (13/18)
* @srate (kSps)
* @pos (0 - 3)
* @LNB (low, high, switch) Mhz
*
*/
int main(int argc, char *argv[])
{
int opt;
int ret, fd, adapter=0, frontend=0, pos;
int simple;
struct lnb_types_st lnb;
struct sec_params sec;
memset(&sec, 0, sizeof(sec));
lnb = lnbs[0]; /* default is Universal LNB */
while ((opt = getopt(argc, argv, "Hh:a:f:p:s:l:")) != -1) {
switch (opt) {
case '?':
case 'h':
default: /* help */
bad_usage(argv[0], 0);
break;
case 'a': /* adapter */
adapter = strtoul(optarg, NULL, 0);
break;
case 'f': /* demodulator (device) */
frontend = strtoul(optarg, NULL, 0);
break;
case 'p': /* parameters */
if (params_decode(optarg, argv, &sec) < 0) {
bad_usage(argv[0], 1);
return -1;
}
break;
case 's': /* diseqc position */
pos = strtoul(optarg, NULL, 0);
pos % 2 ? (sec.burst = SEC_MINI_B) : (sec.burst = SEC_MINI_A);
break;
case 'l':
if (lnb_parse(optarg, &lnb) < 0) {
bad_usage(argv[0], 1);
return -1;
}
break;
case 'H':
simple = 1; /* human readable */
break;
}
}
lnb.low_val *= 1000; /* kHz */
lnb.high_val *= 1000; /* kHz */
lnb.switch_val *= 1000; /* kHz */
sec.freq *= 1000; /* kHz */
sec.srate *= 1000;
ret = frontend_open(&fd, adapter, frontend);
if (ret < 0) {
fprintf(stderr, "Adapter:%d Frontend:%d open failed, err=%d\n", adapter, frontend, ret);
return -1;
}
ret = lnb_setup(&lnb, &sec);
if (ret < 0) {
fprintf(stderr, "LNB setup failed, err=%d\n", ret);
fprintf(stderr, "%s", usage_str);
goto err;
}
ret = diseqc_setup(fd, &sec);
if (ret < 0) {
fprintf(stderr, "SEC setup failed, err=%d\n", ret);
goto err;;
}
ret = tune_to(fd, &sec);
if (ret < 0) {
fprintf(stderr, "Adapter:%d Frontend:%d tune_to %d %d failed, err=%d\n", adapter, frontend, sec.freq, sec.srate, ret);
goto err;;
}
ret = check_frontend(fd, 1);
if (ret < 0) {
fprintf(stderr, "check frontend failed\n");
goto err;;
}
err:
return ret;
}
int main(int argc, char **argv) {
struct jpeg_decompress_struct dinfo;
struct jpeg_compress_struct cinfo;
struct jpeg_error_mgr jerr;
char *file1; /* input filename */
char *file2; /* output filename */
FILE *fh1; /* input file handle */
FILE *fh2; /* output file handle */
float *data; /* partially-convolved rows in 4-tuples: r, g, b, sum */
float **ptrs; /* pointers into input buffer, one for each scanline */
JSAMPLE *line; /* input/output buffer */
float *fx,*fy; /* convolution kernel cache */
int mode; /* resize mode (see M_SET_SIZE, etc.) */
int quality; /* jpeg quality: 0 to 100 */
int len; /* length of one line in data */
int w1, h1, z1; /* size of input image */
int w2, h2; /* size of output image */
int w3, h3; /* size of convolution kernel */
int xo, yo; /* number of cols/rows to side of center of kernel */
int y1, n1; /* first row and number of rows loaded into input buffer */
int yc; /* last row loaded from input file */
int x2, y2; /* current location in output image */
float ox, oy; /* offset of origin in input image */
float sx, sy; /* amount to scale horizontal and vertical */
float xf, yf; /* corresponding location in input image */
float ax, ay; /* constants needed for Lanczos kernel */
float extra; /* multiply kernel radius by this to get extra lobes */
int kernel; /* boolean: dump convolution kernel and abort? */
int verbose; /* boolean: verbose mode? */
/* Temporary variables. */
float *ptr1, *ptr2, *ptr3;
JSAMPLE *ptr4;
int x, y, i, j, k, c;
float f, r, g, b, s, *accum;
/* Print help message. */
if (argc <= 1 || get_flag(argv, &argc, "-h", "--help")) {
printf("\n");
printf("USAGE\n");
printf(" %s\n", USAGE);
printf("\n");
printf("OPTIONS\n");
printf(" <w>x<h> Width and height of output image, e.g., '200x200'.\n");
printf(" <input.jpg> Input image. Must be 'normal' RGB color JPEG.\n");
printf(" <output.jpg> Output image. Clobbers any existing file.\n");
printf("\n");
printf(" --set-size Default mode: set to given size, ignoring aspect ratio.\n");
printf(" --set-area Keep aspect ratio, reducing/enlarging to area of given box.\n");
printf(" --max-size Keep aspect ratio, reducing to within given box.\n");
printf(" --max-area Keep aspect ratio, reducing to area of given box.\n");
printf(" --min-size Keep aspect ratio, enlarging to contain given box.\n");
printf(" --min-area Keep aspect ratio, enlarging to area of given box.\n");
printf(" --crop Reduce/enlarge, cropping to get correct ratio.\n");
printf("\n");
printf(" -q --quality <pct> JPEG quality of output image; default depends on size.\n");
printf(" -r --radius <n> Radius of convolution kernel, > 0; default is 1.0.\n");
printf(" -s --sharp <n> Amount to sharpen output, >= 0; default is 0.2.\n");
printf("\n");
printf(" --flat Average pixels within box of given radius.\n");
printf(" --linear Weight pixels within box linearly by closeness.\n");
printf(" --hermite Hermite cubic spline filter; similar to Gaussian.\n");
printf(" --catrom [<M>] Catmull-Rom cubic spline; default is M = 0.5 at R = 1.\n");
printf(" --mitchell Mitchell-Netravali filter (see Keys filter).\n");
printf(" --keys [<B> <C>] Keys family filters; default is B = C = 1/3 (Mitchell).\n");
printf(" --lanczos [<N>] Lanczos windowed sinc filter; default is N = 3 lobes.\n");
printf("\n");
printf(" -h --help Print this message.\n");
printf(" -v --verbose Verbose / debug mode.\n");
printf(" -k --kernel Dump convolution kernel without processing image.\n");
printf("\n");
exit(1);
}
/* Get command line args. */
get_size(argv, &argc, &w2, &h2);
quality = get_value(argv, &argc, "-q", "--quality", default_quality(w2, h2));
radius = get_value(argv, &argc, "-r", "--radius", 1.0);
sharp = get_value(argv, &argc, "-s", "--sharp", 0.2);
verbose = get_flag(argv, &argc, "-v", "--verbose");
kernel = get_flag(argv, &argc, "-k", "--kernel");
/* Only allowed one mode flag. */
mode = get_flag(argv, &argc, "--set-size", 0) ? M_SET_SIZE :
get_flag(argv, &argc, "--max-size", 0) ? M_MAX_SIZE :
get_flag(argv, &argc, "--min-size", 0) ? M_MIN_SIZE :
get_flag(argv, &argc, "--set-area", 0) ? M_SET_AREA :
get_flag(argv, &argc, "--max-area", 0) ? M_MAX_AREA :
get_flag(argv, &argc, "--min-area", 0) ? M_MIN_AREA :
get_flag(argv, &argc, "--crop", 0) ? M_CROP : M_SET_SIZE;
/* Each filter type takes different arguments. */
if (get_filter(argv, &argc, "--flat", 0, 0, 0)) {
filter = F_FLAT;
extra = 1.0;
} else if (get_filter(argv, &argc, "--linear", 0, 0, 0)) {
filter = F_LINEAR;
extra = 1.0;
} else if (get_filter(argv, &argc, "--hermite", 0, 0, 0)) {
filter = F_HERMITE;
extra = 1.0;
} else if (get_filter(argv, &argc, "--catrom", 1, 1.0, 0.0)) {
filter = F_CATROM;
extra = 2.0;
} else if (get_filter(argv, &argc, "--mitchell", 0, 0.0, 0.0)) {
filter = F_KEYS;
extra = 2.0;
arg1 = 1.0 / 3.0;
arg2 = 1.0 / 3.0;
} else if (get_filter(argv, &argc, "--keys", 2, 1.0/3.0, 1.0/3.0)) {
filter = F_KEYS;
extra = 2.0;
} else if (get_filter(argv, &argc, "--lanczos", 1, 3.0, 0.0)) {
filter = F_LANCZOS;
extra = arg1;
} else {
filter = F_LANCZOS;
arg1 = 3.0;
extra = arg1;
}
/* Get files last because they complain if there are any flags left. */
file1 = get_file(argv, &argc);
file2 = get_file(argv, &argc);
if (argc > 1) bad_usage("unexpected argument: %s", argv[1]);
/* Create and initialize decompress object. */
dinfo.err = jpeg_std_error(&jerr);
jpeg_create_decompress(&dinfo);
if ((fh1 = fopen(file1, "rb")) == NULL) {
fprintf(stderr, "can't open %s for reading\n", file1);
exit(1);
}
jpeg_stdio_src(&dinfo, fh1);
/* Get dimensions and format of input image. */
jpeg_read_header(&dinfo, TRUE);
jpeg_start_decompress(&dinfo);
w1 = dinfo.output_width;
h1 = dinfo.output_height;
z1 = dinfo.output_components;
/* Choose output size. */
if (mode == M_SET_SIZE) {
/* leave as is */
sx = (double)w2 / w1;
sy = (double)h2 / h1;
ox = oy = 0.0;
} else if (mode == M_MAX_SIZE) {
if (w1 > w2 && h1 * w2 / w1 < h2) {
sx = sy = (double)w2 / w1;
h2 = sy * h1 + 0.5;
} else if (h1 > h2) {
sx = sy = (double)h2 / h1;
w2 = sx * w1 + 0.5;
} else {
sx = sy = 1.0;
w2 = w1;
h2 = h1;
}
ox = oy = 0.0;
} else if (mode == M_MIN_SIZE) {
if (w1 < w2 && h1 * w2 / w1 > h2) {
sx = sy = (double)w2 / w1;
h2 = sy * h1 + 0.5;
} else if (h1 < h2) {
sx = sy = (double)h2 / h1;
w2 = sx * w1 + 0.5;
} else {
sx = sy = 1.0;
w2 = w1;
h2 = h1;
}
ox = oy = 0.0;
} else if (mode == M_SET_AREA) {
sx = sy = sqrt(((double)w2) * h2 / w1 / h1);
w2 = sx * w1 + 0.5;
h2 = sy * h1 + 0.5;
ox = oy = 0.0;
} else if (mode == M_MAX_AREA) {
if (w1 * h1 > w2 * h2) {
sx = sy = sqrt(((double)w2) * h2 / w1 / h1);
w2 = sx * w1 + 0.5;
h2 = sy * h1 + 0.5;
} else {
sx = sy = 1.0;
w2 = w1;
h2 = h1;
}
ox = oy = 0.0;
} else if (mode == M_MIN_AREA) {
if (w1 * h1 < w2 * h2) {
sx = sy = sqrt(((double)w2) * h2 / w1 / h1);
w2 = sx * w1 + 0.5;
h2 = sy * h1 + 0.5;
} else {
sx = sy = 1.0;
w2 = w1;
h2 = h1;
}
ox = oy = 0.0;
} else if (mode == M_CROP) {
sx = (double)w2 / w1;
sy = (double)h2 / h1;
sx = sy = sx > sy ? sx : sy;
ox = ((double)w1 - (double)w2 / sx) * 0.5;
oy = ((double)h1 - (double)h2 / sy) * 0.5;
} else {
fprintf(stderr, "invalid mode: %d!", mode);
exit(1);
}
if (verbose) {
fprintf(stderr, "input: %dx%d (%d) %s\n", w1, h1, z1, file1);
fprintf(stderr, "output: %dx%d (%d) %s\n", w2, h2, z1, file2);
if (sx > 1.0 && sy > 1.0)
fprintf(stderr, "enlarge: %.2f %.2f\n", sx*1.0, sy*1.0);
else
fprintf(stderr, "reduce: %.2f %.2f\n", 1.0/sx, 1.0/sy);
fprintf(stderr, "origin: %.2f %.2f\n", ox, oy);
fprintf(stderr, "quality: %d\n", quality);
fprintf(stderr, "radius: %f\n", radius);
fprintf(stderr, "sharp: %f\n", sharp);
if (filter == F_FLAT) fprintf(stderr, "filter: flat\n");
if (filter == F_LINEAR) fprintf(stderr, "filter: bilinear\n");
if (filter == F_HERMITE) fprintf(stderr, "filter: hermite\n");
if (filter == F_CATROM) fprintf(stderr, "filter: Catmull-Rom (M=%f)\n", arg1);
if (filter == F_KEYS) fprintf(stderr, "filter: Keys-family (B=%f, C=%f)\n", arg1, arg2);
if (filter == F_LANCZOS) fprintf(stderr, "filter: Lanczos (N=%f)\n", arg1);
}
/* Calculate size of convolution kernel. */
ax = sx < 1 ? radius / sx : radius;
ay = sy < 1 ? radius / sy : radius;
xo = (int)(ax * extra + 0.5);
yo = (int)(ay * extra + 0.5);
w3 = xo + xo + 1;
h3 = yo + yo + 1;
/* Pre-calculate coefficients for Keys-family filters. */
if (filter == F_CATROM) {
filter = F_KEYS;
c1 = 2.0 - arg1;
c2 = -3.0 + arg1;
c3 = 0.0;
c4 = 1.0;
c5 = -arg1;
c6 = 2.0 * arg1;
c7 = -arg1;
c8 = 0.0;
} else if (filter == F_KEYS) {
c1 = ( 12.0 + -9.0 * arg1 + -6.0 * arg2) / 6.0;
c2 = (-18.0 + 12.0 * arg1 + 6.0 * arg2) / 6.0;
c3 = ( 0.0 + 0.0 * arg1 + 0.0 * arg2) / 6.0;
c4 = ( 6.0 + -2.0 * arg1 + 0.0 * arg2) / 6.0;
c5 = ( 0.0 + -1.0 * arg1 + -6.0 * arg2) / 6.0;
c6 = ( 0.0 + 3.0 * arg1 + 12.0 * arg2) / 6.0;
c7 = ( 0.0 + -3.0 * arg1 + -6.0 * arg2) / 6.0;
c8 = ( 0.0 + 1.0 * arg1 + 0.0 * arg2) / 6.0;
}
if (verbose) {
fprintf(stderr, "w1-h1: %d %d\n", w1, h1);
fprintf(stderr, "xo-yo: %d %d\n", xo, yo);
fprintf(stderr, "w3-h3: %d %d\n", w3, h3);
fprintf(stderr, "ax-ay: %8.5f %8.5f\n", ax, ay);
fprintf(stderr, "c1-4: %8.5f %8.5f %8.5f %8.5f\n", c1, c2, c3, c4);
fprintf(stderr, "c5-8: %8.5f %8.5f %8.5f %8.5f\n", c5, c6, c7, c8);
}
/* Debug convolution kernel. */
if (kernel) {
f = -1;
for (xf=0; xf<10.0; xf+=0.1) {
s = calc_factor(xf);
fprintf(stderr, "%5.2f %7.4f\n", xf, s);
if (s == 0.0 && f == 0.0)
break;
f = s;
}
exit(0);
}
/* Allocate buffers. */
len = w2 * (z1 + 1);
data = (float*)malloc(h3 * len * sizeof(float));
ptrs = (float**)malloc(h3 * sizeof(float*));
line = (JSAMPLE*)malloc((w1 > w2 ? w1 : w2) * z1 * sizeof(JSAMPLE));
fx = (float*)malloc(w2 * w3 * sizeof(float));
fy = (float*)malloc(h2 * h3 * sizeof(float));
accum = (float*)malloc(z1 * sizeof(float));
/* Cache horizontal and vertical components of kernel. */
for (x2=0, ptr3=fx; x2<w2; x2++) {
xf = ((float)x2) / sx + ox;
for (i=0, x=(int)xf-xo; i<w3; i++, x++) {
*ptr3++ = calc_factor(fabs(xf-x) / ax);
}
}
for (y2=0, ptr3=fy; y2<h2; y2++) {
yf = ((float)y2) / sy + oy;
for (i=0, y=(int)yf-yo; i<h3; i++, y++) {
*ptr3++ = calc_factor(fabs(yf-y) / ay);
}
}
/* Create and initialize compress object. */
cinfo.err = jpeg_std_error(&jerr);
jpeg_create_compress(&cinfo);
if ((fh2 = fopen(file2, "wb")) == NULL) {
fprintf(stderr, "can't open %s for writing\n", file2);
exit(1);
}
jpeg_stdio_dest(&cinfo, fh2);
cinfo.image_width = w2;
cinfo.image_height = h2;
cinfo.input_components = z1;
switch (z1) {
case 1:
cinfo.in_color_space = JCS_GRAYSCALE;
break;
case 3:
cinfo.in_color_space = JCS_RGB;
break;
case 4:
cinfo.in_color_space = JCS_CMYK;
break;
default:
fprintf(stderr, "Not sure what colorspace to make output for input file with %d components.\n", z1);
exit(1);
}
jpeg_set_defaults(&cinfo);
jpeg_set_quality(&cinfo, quality, TRUE);
jpeg_start_compress(&cinfo, TRUE);
/* Loop through output rows. */
n1 = 0; /* (num lines in buffer) */
yc = -1; /* (last line loaded) */
for (y2=0; y2<h2; y2++) {
yf = ((float)y2) / sy + oy;
/* Make sure we have the 'yo' rows above and below this row. */
y = (int)yf - yo;
if (y - y1 >= h3) n1 = 0;
ptr1 = n1 ? ptrs[y - y1] : data;
if (n1) n1 -= y - y1;
for (i=0; i<h3; i++, y++) {
/* Move already-loaded lines into place until run out. */
ptrs[i] = ptr1;
ptr1 += len;
if (ptr1 >= data + len * h3) ptr1 = data;
/* Need to load this line into next available slot. */
/* It's okay to leave junk in lines outside input image. */
if (n1-- <= 0 && y >= 0 && y < h1) {
/* Read lines until get the one we want. */
for (; yc<y; yc++) {
if (!jpeg_read_scanlines(&dinfo, &line, 1)) {
fprintf(stderr, "JPEG image corrupted at line %d.\n", yc);
exit(1);
}
}
/* Do horizontal part of convolution now. Stores a partial
/* result for each output column for this input row. */
/* ------------------------- start switch 1 on z1 ------------------------- */
switch (z1) {
case 1:
for (x2=0, ptr2=ptrs[i], ptr3=fx; x2<w2; x2++) {
xf = ((float)x2) / sx + ox;
r = s = 0;
for (j=0, x=(int)xf-xo; j<w3; j++, x++) {
f = *ptr3++;
if (x >= 0 && x < w1 && fabs(f) > 1e-8) {
ptr4 = line + x;
r += f * *ptr4++;
s += f;
}
}
if (fabs(s) > 1e-3) {
*ptr2++ = r;
*ptr2++ = s;
} else {
fprintf(stderr, "x factor near zero -- shouldn't happen!\n");
ptr4 = line + (int)xf;
*ptr2++ = *ptr4++;
*ptr2++ = 1.0;
}
}
break;
case 3:
for (x2=0, ptr2=ptrs[i], ptr3=fx; x2<w2; x2++) {
xf = ((float)x2) / sx + ox;
r = g = b = s = 0;
for (j=0, x=(int)xf-xo; j<w3; j++, x++) {
f = *ptr3++;
if (x >= 0 && x < w1 && fabs(f) > 1e-8) {
ptr4 = line + x + x + x;
r += f * *ptr4++;
g += f * *ptr4++;
b += f * *ptr4++;
s += f;
}
}
if (fabs(s) > 1e-3) {
*ptr2++ = r;
*ptr2++ = g;
*ptr2++ = b;
*ptr2++ = s;
} else {
fprintf(stderr, "x factor near zero -- shouldn't happen!\n");
ptr4 = line + (int)xf * 3;
*ptr2++ = *ptr4++;
*ptr2++ = *ptr4++;
*ptr2++ = *ptr4++;
*ptr2++ = 1.0;
}
}
break;
default:
for (x2=0, ptr2=ptrs[i], ptr3=fx; x2<w2; x2++) {
xf = ((float)x2) / sx + ox;
for (s=k=0; k<z1; k++)
accum[k] = 0;
for (j=0, x=(int)xf-xo; j<w3; j++, x++) {
f = *ptr3++;
if (x >= 0 && x < w1 && fabs(f) > 1e-8) {
ptr4 = line + x * z1;
for (k=0; k<z1; k++)
accum[k] += f * *ptr4++;
s += f;
}
}
if (fabs(s) > 1e-3) {
for (k=0; k<z1; k++)
*ptr2++ = accum[k];
*ptr2++ = s;
} else {
fprintf(stderr, "x factor near zero -- shouldn't happen!\n");
ptr4 = line + (int)xf * z1;
for (k=0; k<z1; k++)
*ptr2++ = *ptr4++;
*ptr2++ = 1.0;
}
}
}
/* ------------------------- end switch 1 on z1 ------------------------- */
}
/* printf("i=%d y2=%d yc=%d y1=%d n1=%d ptrs[i]=%d\n", i, y2, yc, y1, n1, (ptrs[i]-data)/len); */
}
/* Now have h3 lines in buffer, starting at y - yo. */
y1 = (int)yf - yo;
n1 = h3;
/* Do vertical part of convolution now. Finish off calculation for
/* each output column in this output row by iterating over partial
/* results for each corresponding input row we calculated above. */
/* ------------------------- start switch 2 on z1 ------------------------- */
switch (z1) {
case 1:
for (x2=0, ptr4=line; x2<w2; x2++) {
xf = ((float)x2) / sx + ox;
r = s = 0;
ptr3 = fy + y2 * h3;
for (i=0, y=(int)yf-yo; i<h3; i++, y++) {
f = *ptr3++;
if (y >= 0 && y < h1 && fabs(f) > 1e-8) {
ptr1 = ptrs[i] + x2 + x2;
r += f * *ptr1++;
s += f * *ptr1++;
}
/* printf("x2=%d y2=%d i=%d f=%f s=%f (y=%d ptr1=%d)\n", x2, y2, i, f, s, y, (ptr1-data)/len); */
}
if (fabs(s) > 1e-3) {
*ptr4++ = (c = r / s) > 255 ? 255 : c < 0 ? 0 : c;
} else {
fprintf(stderr, "y factor near zero -- shouldn't happen!\n");
ptr1 = ptrs[h3/2] + ((int)xf) * 4;
*ptr4++ = *ptr1++;
}
}
break;
case 3:
for (x2=0, ptr4=line; x2<w2; x2++) {
xf = ((float)x2) / sx + ox;
r = g = b = s = 0;
ptr3 = fy + y2 * h3;
for (i=0, y=(int)yf-yo; i<h3; i++, y++) {
f = *ptr3++;
if (y >= 0 && y < h1 && fabs(f) > 1e-8) {
ptr1 = ptrs[i] + x2 * 4;
r += f * *ptr1++;
g += f * *ptr1++;
b += f * *ptr1++;
s += f * *ptr1++;
}
/* printf("x2=%d y2=%d i=%d f=%f s=%f (y=%d ptr1=%d)\n", x2, y2, i, f, s, y, (ptr1-data)/len); */
}
if (fabs(s) > 1e-3) {
*ptr4++ = (c = r / s) > 255 ? 255 : c < 0 ? 0 : c;
*ptr4++ = (c = g / s) > 255 ? 255 : c < 0 ? 0 : c;
*ptr4++ = (c = b / s) > 255 ? 255 : c < 0 ? 0 : c;
} else {
fprintf(stderr, "y factor near zero -- shouldn't happen!\n");
ptr1 = ptrs[h3/2] + ((int)xf) * 4;
*ptr4++ = *ptr1++;
*ptr4++ = *ptr1++;
*ptr4++ = *ptr1++;
}
}
break;
default:
for (x2=0, ptr4=line; x2<w2; x2++) {
xf = ((float)x2) / sx + ox;
for (s=k=0; k<z1; k++)
accum[k] = 0;
ptr3 = fy + y2 * h3;
for (i=0, y=(int)yf-yo; i<h3; i++, y++) {
f = *ptr3++;
if (y >= 0 && y < h1 && fabs(f) > 1e-8) {
ptr1 = ptrs[i] + x2 * (z1 + 1);
for (k=0; k<z1; k++)
accum[k] += f * *ptr1++;
s += f * *ptr1++;
}
/* printf("x2=%d y2=%d i=%d f=%f s=%f (y=%d ptr1=%d)\n", x2, y2, i, f, s, y, (ptr1-data)/len); */
}
if (fabs(s) > 1e-3) {
for (k=0; k<z1; k++)
*ptr4++ = (c = accum[k] / s) > 255 ? 255 : c < 0 ? 0 : c;
} else {
fprintf(stderr, "y factor near zero -- shouldn't happen!\n");
ptr1 = ptrs[h3/2] + ((int)xf) * 4;
for (k=0; k<z1; k++)
*ptr4++ = *ptr1++;
}
}
}
/* ------------------------- end switch 2 on z1 ------------------------- */
/* Write this output line. */
jpeg_write_scanlines(&cinfo, &line, 1);
}
/* Finish off compression. */
jpeg_finish_compress(&cinfo);
/* Clean up. */
jpeg_destroy_decompress(&dinfo);
jpeg_destroy_compress(&cinfo);
free(data);
free(line);
free(ptrs);
free(fx);
free(accum);
exit(0);
}
