static Read *
read_new_buffer( VipsImage *out, const void *buffer, size_t length,
gboolean readbehind )
{
Read *read;
if( !(read = read_new( out, readbehind )) )
return( NULL );
read->length = length;
read->buffer = buffer;
png_set_read_fn( read->pPng, read, vips_png_read_buffer );
/* Catch PNG errors from png_read_info().
*/
if( setjmp( png_jmpbuf( read->pPng ) ) )
return( NULL );
/* Read enough of the file that png_get_interlace_type() will start
* working.
*/
png_read_info( read->pPng, read->pInfo );
return( read );
}
int
vips__magick_read_buffer( const void *buf, const size_t len, VipsImage *out,
gboolean all_frames, const char *density, int page )
{
Read *read;
#ifdef DEBUG
printf( "magick2vips: vips__magick_read_buffer: %p %zu\n", buf, len );
#endif /*DEBUG*/
if( !(read = read_new( NULL, out, all_frames, density, page )) )
return( -1 );
#ifdef DEBUG
printf( "magick2vips: calling BlobToImage() ...\n" );
#endif /*DEBUG*/
read->image = BlobToImage( read->image_info,
buf, len, &read->exception );
if( !read->image ) {
vips_error( "magick2vips", _( "unable to read buffer\n"
"libMagick error: %s %s" ),
read->exception.reason, read->exception.description );
return( -1 );
}
if( parse_header( read ) )
return( -1 );
if( vips_image_generate( out,
NULL, magick_fill_region, NULL, read, NULL ) )
return( -1 );
return( 0 );
}
static Read *
read_new_filename( VipsImage *out, const char *name, gboolean readbehind )
{
Read *read;
if( !(read = read_new( out, readbehind )) )
return( NULL );
read->name = vips_strdup( VIPS_OBJECT( out ), name );
if( !(read->fp = vips__file_open_read( name, NULL, FALSE )) )
return( NULL );
/* Catch PNG errors from png_read_info().
*/
if( setjmp( png_jmpbuf( read->pPng ) ) )
return( NULL );
/* Read enough of the file that png_get_interlace_type() will start
* working.
*/
png_init_io( read->pPng, read->fp );
png_read_info( read->pPng, read->pInfo );
return( read );
}
int
vips__magick_read( const char *filename, VipsImage *out,
gboolean all_frames, const char *density, int page )
{
Read *read;
#ifdef DEBUG
printf( "magick2vips: vips__magick_read: %s\n", filename );
#endif /*DEBUG*/
if( !(read = read_new( filename, out, all_frames, density, page )) )
return( -1 );
#ifdef DEBUG
printf( "magick2vips: calling ReadImage() ...\n" );
#endif /*DEBUG*/
read->image = ReadImage( read->image_info, &read->exception );
if( !read->image ) {
vips_error( "magick2vips", _( "unable to read file \"%s\"\n"
"libMagick error: %s %s" ),
filename,
read->exception.reason, read->exception.description );
return( -1 );
}
if( parse_header( read ) )
return( -1 );
if( vips_image_generate( out,
NULL, magick_fill_region, NULL, read, NULL ) )
return( -1 );
return( 0 );
}
/* This has severe issues. See:
*
* http://www.imagemagick.org/discourse-server/viewtopic.php?f=1&t=20017
*/
int
vips__magick_read_header( const char *filename, VipsImage *im )
{
Read *read;
#ifdef DEBUG
printf( "magick2vips: vips__magick_read_header: %s\n", filename );
#endif /*DEBUG*/
if( !(read = read_new( filename, im )) )
return( -1 );
read->image = PingImage( read->image_info, &read->exception );
if( !read->image ) {
vips_error( "magick2vips", _( "unable to ping file "
"\"%s\"\nlibMagick error: %s %s" ),
filename,
read->exception.reason, read->exception.description );
return( -1 );
}
if( parse_header( read ) )
return( -1 );
if( im->Xsize <= 0 || im->Ysize <= 0 ) {
vips_error( "magick2vips", "%s", _( "bad image size" ) );
return( -1 );
}
return( 0 );
}
static int
magick2vips_header( const char *filename, IMAGE *im )
{
Read *read;
if( !(read = read_new( filename, im )) )
return( -1 );
read->image = PingImage( read->image_info, &read->exception );
if( !read->image ) {
im_error( "im_magick2vips", _( "unable to ping file "
"\"%s\"\nlibMagick error: %s %s" ),
filename,
read->exception.reason, read->exception.description );
return( -1 );
}
if( parse_header( read ) )
return( -1 );
if( im->Xsize <= 0 || im->Ysize <= 0 ) {
im_error( "im_magick2vips", "%s", _( "bad image size" ) );
return( -1 );
}
return( 0 );
}
int
vips__gdal_read_header( const char *filename, VipsImage *out )
{
if( !read_new( filename, out ) )
return( -1 );
return( 0 );
}
int
vips__webp_read_buffer( void *buf, size_t len, VipsImage *out )
{
Read *read;
if( !(read = read_new( NULL, buf, len )) ) {
vips_error( "webp2vips",
"%s", _( "unable to open buffer" ) );
return( -1 );
}
if( read_image( read, out ) )
return( -1 );
return( 0 );
}
/* Read a PNG file header into a VIPS header.
*/
static int
png2vips_header( const char *name, IMAGE *out )
{
Read *read;
if( !(read = read_new( name, out )) )
return( -1 );
if( png2vips( read, 1 ) ) {
read_destroy( read );
return( -1 );
}
read_destroy( read );
return( 0 );
}
int
vips__webp_read_file( const char *filename, VipsImage *out, int shrink )
{
Read *read;
if( !(read = read_new( filename, NULL, 0, shrink )) ) {
vips_error( "webp2vips",
_( "unable to open \"%s\"" ), filename );
return( -1 );
}
if( read_image( read, out ) )
return( -1 );
read_free( read );
return( 0 );
}
int
vips__webp_read_buffer_header( const void *buf, size_t len, VipsImage *out,
int shrink )
{
Read *read;
if( !(read = read_new( NULL, buf, len, shrink )) ) {
vips_error( "webp2vips",
"%s", _( "unable to open buffer" ) );
return( -1 );
}
if( read_header( read, out ) )
return( -1 );
read_free( read );
return( 0 );
}
int
vips__mat_header( const char *filename, VipsImage *out )
{
Read *read;
#ifdef DEBUG
printf( "mat2vips_header: reading \"%s\"\n", filename );
#endif /*DEBUG*/
if( !(read = read_new( filename, out )) )
return( -1 );
if( mat2vips_get_header( read->var, read->out ) ) {
read_destroy( read );
return( -1 );
}
read_destroy( read );
return( 0 );
}
/*-------------------------------------------------------------------------
* Function: main
*
* Purpose: Test groups
*
* Return: Success: zero
*
* Failure: non-zero
*
* Programmer: Robb Matzke
* Tuesday, November 24, 1998
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
int
main(void)
{
hid_t fapl, fcpl, file;
int nerrors=0;
char filename[1024];
/* Reset library */
h5_reset();
fapl = h5_fileaccess();
/*
* Use larger symbol table data structures to be more efficient, use
* defaults to bang harder on the library for testing.
*/
fcpl = H5Pcreate(H5P_FILE_CREATE);
#if 0
H5Pset_sym_k(fcpl, 16, 16);
#endif
/* Open the file */
h5_fixname(FILENAME[0], fapl, filename, sizeof filename);
if ((file=H5Fcreate(filename, H5F_ACC_TRUNC, fcpl, fapl))<0)
goto error;
/* Perform tests */
nerrors += test_misc(file);
nerrors += test_long(file);
nerrors += test_large(file);
nerrors += read_new(fapl);
if (nerrors) goto error;
/* Cleanup */
H5Fclose(file);
puts("All symbol table tests passed.");
h5_cleanup(FILENAME, fapl);
return 0;
error:
puts("*** TESTS FAILED ***");
return 1;
}
/**
* im_mat2vips:
* @filename: file to load
* @out: image to write to
*
* Read a Matlab save file into a VIPS image.
*
* This operation searches the save
* file for the first array variable with between 1 and 3 dimensions and loads
* it as an image. It will not handle complex images. It does not handle
* sparse matrices.
*
* See also: #VipsFormat.
*
* Returns: 0 on success, -1 on error.
*/
int
im_mat2vips( const char *filename, IMAGE *out )
{
Read *read;
#ifdef DEBUG
printf( "mat2vips: reading \"%s\"\n", filename );
#endif /*DEBUG*/
if( !(read = read_new( filename, out )) )
return( -1 );
if( mat2vips_get_header( read->var, read->out ) ||
mat2vips_get_data( read->mat, read->var, read->out ) ) {
read_destroy( read );
return( -1 );
}
read_destroy( read );
return( 0 );
}
/**
* im_png2vips:
* @filename: file to load
* @out: image to write to
*
* Read a PNG file into a VIPS image. It can read all png images, including 8-
* and 16-bit images, 1 and 3 channel, with and without an alpha channel.
*
* There is no support for embedded ICC profiles.
*
* See also: #VipsFormat, im_vips2png().
*
* Returns: 0 on success, -1 on error.
*/
int
im_png2vips( const char *name, IMAGE *out )
{
Read *read;
#ifdef DEBUG
printf( "im_png2vips: reading \"%s\"\n", name );
#endif /*DEBUG*/
if( !(read = read_new( name, out )) )
return( -1 );
if( png2vips( read, 0 ) ) {
read_destroy( read );
return( -1 );
}
read_destroy( read );
return( 0 );
}
/* This has severe issues. See:
*
* http://www.imagemagick.org/discourse-server/viewtopic.php?f=1&t=20017
*/
int
vips__magick_read_header( const char *filename, VipsImage *im,
gboolean all_frames, const char *density, int page )
{
Read *read;
#ifdef DEBUG
printf( "vips__magick_read_header: %s\n", filename );
#endif /*DEBUG*/
if( !(read = read_new( filename, im, all_frames, density, page )) )
return( -1 );
#ifdef DEBUG
printf( "vips__magick_read_header: pinging image ...\n" );
#endif /*DEBUG*/
read->image = PingImage( read->image_info, &read->exception );
if( !read->image ) {
vips_error( "magick2vips", _( "unable to ping file "
"\"%s\"\nlibMagick error: %s %s" ),
filename,
read->exception.reason, read->exception.description );
return( -1 );
}
if( parse_header( read ) )
return( -1 );
if( im->Xsize <= 0 || im->Ysize <= 0 ) {
vips_error( "magick2vips", "%s", _( "bad image size" ) );
return( -1 );
}
/* Just a header read: we can free the read early and save an fd.
*/
read_free( read );
return( 0 );
}
int
vips__magick_read( const char *filename, VipsImage *out )
{
Read *read;
#ifdef DEBUG
printf( "magick2vips: vips__magick_read: %s\n", filename );
#endif /*DEBUG*/
if( !(read = read_new( filename, out )) )
return( -1 );
#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*/
read->image = ReadImage( read->image_info, &read->exception );
if( !read->image ) {
vips_error( "magick2vips", _( "unable to read file \"%s\"\n"
"libMagick error: %s %s" ),
filename,
read->exception.reason, read->exception.description );
return( -1 );
}
if( parse_header( read ) )
return( -1 );
if( vips_image_generate( out,
NULL, magick_fill_region, NULL, read, NULL ) )
return( -1 );
return( 0 );
}
/**
* im_tile_cache:
* @in: input image
* @out: output image
* @tile_width: tile width
* @tile_height: tile height
* @max_tiles: maximum number of tiles to cache
*
* This operation behaves rather like im_copy() between images
* @in and @out, except that it keeps a cache of computed pixels.
* This cache is made of up to @max_tiles tiles (a value of -1 for
* means any number of tiles), and each tile is of size @tile_width
* by @tile_height pixels. Each cache tile is made with a single call to
* im_prepare().
*
* This is a lower-level operation than im_cache() since it does no
* subdivision. It is suitable for caching the output of operations like
* im_exr2vips() on tiled images.
*
* See also: im_cache().
*
* Returns: 0 on success, -1 on error.
*/
int
im_tile_cache( IMAGE *in, IMAGE *out,
int tile_width, int tile_height, int max_tiles )
{
Read *read;
if( tile_width <= 0 || tile_height <= 0 || max_tiles < -1 ) {
im_error( "im_tile_cache", "%s", _( "bad parameters" ) );
return( -1 );
}
if( im_piocheck( in, out ) ||
im_cp_desc( out, in ) ||
im_demand_hint( out, IM_SMALLTILE, in, NULL ) ||
!(read = read_new( in, out,
tile_width, tile_height, max_tiles )) ||
im_generate( out,
im_start_one, tile_cache_fill, im_stop_one, in, read ) )
return( -1 );
return( 0 );
}
int
vips__gdal_read( const char *filename, VipsImage *out )
{
Read *read;
VipsImage *raw;
VipsImage *t;
VIPS_DEBUG_MSG( "vips__gdal_read: %s\n",
filename );
raw = vips_image_new();
vips_object_local( out, raw );
if( !(read = read_new( filename, raw )) )
return( -1 );
if( vips_image_generate( raw,
NULL, vips__gdal_generate, NULL, read, NULL ) )
return( -1 );
/* Copy to out, adding a cache. Enough tiles for a complete row, plus
* 50%.
*/
if( vips_tilecache( raw, &t,
"tile_width", read->tile_width,
"tile_height", read->tile_height,
"max_tiles",
(int) (1.5 * (1 + raw->Xsize / read->tile_width)),
"threaded", FALSE,
NULL ) )
return( -1 );
if( vips_image_write( t, out ) ) {
g_object_unref( t );
return( -1 );
}
g_object_unref( t );
return( 0 );
}
int
vips__magick_read_buffer_header( const void *buf, const size_t len,
VipsImage *im,
gboolean all_frames, const char *density, int page )
{
Read *read;
#ifdef DEBUG
printf( "vips__magick_read_buffer_header: %p %zu\n", buf, len );
#endif /*DEBUG*/
if( !(read = read_new( NULL, im, all_frames, density, page )) )
return( -1 );
#ifdef DEBUG
printf( "vips__magick_read_buffer_header: pinging blob ...\n" );
#endif /*DEBUG*/
read->image = PingBlob( read->image_info, buf, len, &read->exception );
if( !read->image ) {
vips_error( "magick2vips", _( "unable to ping blob\n"
"libMagick error: %s %s" ),
read->exception.reason, read->exception.description );
return( -1 );
}
if( parse_header( read ) )
return( -1 );
if( im->Xsize <= 0 ||
im->Ysize <= 0 ) {
vips_error( "magick2vips", "%s", _( "bad image size" ) );
return( -1 );
}
return( 0 );
}
