static Read *
read_new( const char *filename, VipsImage *im )
{
Read *read;
static int inited = 0;
if( !inited ) {
#ifdef HAVE_MAGICKCOREGENESIS
MagickCoreGenesis( vips_get_argv0(), MagickFalse );
#else /*!HAVE_MAGICKCOREGENESIS*/
InitializeMagick( "" );
#endif /*HAVE_MAGICKCOREGENESIS*/
inited = 1;
}
if( !(read = VIPS_NEW( im, Read )) )
return( NULL );
read->filename = g_strdup( filename );
read->im = im;
read->image = NULL;
read->image_info = CloneImageInfo( NULL );
GetExceptionInfo( &read->exception );
read->n_frames = 0;
read->frames = NULL;
read->frame_height = 0;
read->lock = g_mutex_new();
g_signal_connect( im, "close", G_CALLBACK( read_destroy ), read );
if( !read->image_info )
return( NULL );
vips_strncpy( read->image_info->filename, filename, MaxTextExtent );
#ifdef DEBUG
printf( "magick2vips: read_new: %s\n", read->filename );
#endif /*DEBUG*/
return( read );
}
static Read *
read_new( const char *filename, VipsImage *im,
gboolean all_frames, const char *density, int page )
{
Read *read;
static int inited = 0;
if( !inited ) {
#ifdef HAVE_MAGICKCOREGENESIS
MagickCoreGenesis( vips_get_argv0(), MagickFalse );
#else /*!HAVE_MAGICKCOREGENESIS*/
InitializeMagick( "" );
#endif /*HAVE_MAGICKCOREGENESIS*/
inited = 1;
}
if( !(read = VIPS_NEW( im, Read )) )
return( NULL );
read->filename = filename ? g_strdup( filename ) : NULL;
read->all_frames = all_frames;
read->page = page;
read->im = im;
read->image = NULL;
read->image_info = CloneImageInfo( NULL );
GetExceptionInfo( &read->exception );
read->n_frames = 0;
read->frames = NULL;
read->frame_height = 0;
read->lock = vips_g_mutex_new();
g_signal_connect( im, "close", G_CALLBACK( read_close ), read );
if( !read->image_info )
return( NULL );
if( filename )
vips_strncpy( read->image_info->filename,
filename, MaxTextExtent );
/* Canvas resolution for rendering vector formats like SVG.
*/
VIPS_SETSTR( read->image_info->density, density );
#ifdef HAVE_SETIMAGEOPTION
/* When reading DICOM images, we want to ignore any
* window_center/_width setting, since it may put pixels outside the
* 0-65535 range and lose data.
*
* These window settings are attached as vips metadata, so our caller
* can interpret them if it wants.
*/
SetImageOption( read->image_info, "dcm:display-range", "reset" );
#endif /*HAVE_SETIMAGEOPTION*/
if( !all_frames ) {
#ifdef HAVE_NUMBER_SCENES
/* I can't find docs for these fields, but this seems to work.
*/
char page[256];
read->image_info->scene = read->page;
read->image_info->number_scenes = 1;
/* Some IMs must have the string version set as well.
*/
vips_snprintf( page, 256, "%d", read->page );
read->image_info->scenes = strdup( page );
#else /*!HAVE_NUMBER_SCENES*/
/* This works with GM 1.2.31 and probably others.
*/
read->image_info->subimage = read->page;
read->image_info->subrange = 1;
#endif
}
#ifdef DEBUG
printf( "magick2vips: read_new: %s\n", read->filename );
#endif /*DEBUG*/
return( read );
}
