/* Partitions the given character sequence into one or more unidirectional
* fragments and invokes the given callback function for each fragment.
*/
void fz_bidi_fragment_text(fz_context *ctx,
const uint32_t *text,
size_t textlen,
fz_bidi_direction *baseDir,
fz_bidi_fragment_callback *callback,
void *arg,
int flags)
{
size_t startOfFragment;
size_t i;
fz_bidi_level *levels;
if (text == NULL || callback == NULL || textlen == 0)
return;
DBUGH(("fz_bidi_fragment_text('%S', len = %d)\n", text, textlen));
levels = create_levels(ctx, text, textlen, baseDir, FALSE, flags);
/* We now have an array with an embedding level
* for each character in text.
*/
assert(levels != NULL);
fz_try(ctx)
{
startOfFragment = 0;
for (i = 1; i < textlen; i++)
{
if (levels[i] != levels[i-1])
{
/* We've gone past the end of the fragment.
* Create a text object for it, then start
* a new fragment.
*/
split_at_script(&text[startOfFragment],
i - startOfFragment,
levels[startOfFragment],
arg,
callback);
startOfFragment = i;
}
}
/* Now i == textlen. Deal with the final (or maybe only) fragment. */
/* otherwise create 1 fragment */
split_at_script(&text[startOfFragment],
i - startOfFragment,
levels[startOfFragment],
arg,
callback);
}
fz_always(ctx)
{
fz_free(ctx, levels);
}
fz_catch(ctx)
{
fz_rethrow(ctx);
}
}
int main(int argc, char **argv)
{
ExceptionInfo exception;
ImageInfo *image_info;
Image *image;
char *ext;
char image_name[NAME_MAX + 1];
char deepzoom_directory[NAME_MAX + 1];
char dzi[NAME_MAX];
int opt;
while ((opt = getopt(argc, argv, "t:o:h")) != -1) {
switch (opt) {
case 't':
tile_sz = atoi(optarg);
break;
case 'o':
overlap = atoi(optarg);
break;
case 'h':
print_usage();
exit(EXIT_SUCCESS);
}
}
if (optind < argc) {
snprintf(image_name, sizeof(image_name), "%s", argv[optind]);
} else {
print_usage();
exit(EXIT_FAILURE);
}
InitializeMagick(NULL);
GetExceptionInfo(&exception);
image_info = CloneImageInfo((ImageInfo *)NULL);
snprintf(image_info->filename, sizeof(image_info->filename), "%s",
image_name);
image = ReadImage(image_info, &exception);
if (exception.severity != UndefinedException)
CatchImageException(image);
ext = rindex(image_name, '.');
snprintf(deepzoom_directory, strlen(image_name) - strlen(ext) + 1,
"%s", image_name);
strcpy(dzi, deepzoom_directory);
strncat(deepzoom_directory, "_files",
NAME_MAX - strlen(deepzoom_directory));
printf("Creating directory: %s\n", deepzoom_directory);
mkdir(deepzoom_directory, 0777);
chdir(deepzoom_directory);
create_levels(image, ext + 1, image->columns, image->rows);
chdir("..");
strncat(dzi, ".dzi", NAME_MAX - strlen(dzi));
printf("Writing DZI: %s\n", dzi);
write_dzi(dzi, ext + 1, image->columns, image->rows);
DestroyImage(image);
DestroyImageInfo(image_info);
DestroyExceptionInfo(&exception);
DestroyMagick();
exit(EXIT_SUCCESS);
}
inline void MultiGrid::level_required(int lvl)
{
if(m_hierarchy.num_subsets() <= lvl){
create_levels(lvl - m_hierarchy.num_subsets() + 1);
}
}
