fixes to deep zoom write
- shrink down to a 1x1 pixel tile, even for very long and thin images - round image size up on shrink - write a .dzi file with the pyramid params - default tile size and overlap now matches the openslide writer thanks to Benjamin Gilbert for pointing out the errors
This commit is contained in:
John Cupitt
parent
392b59e261
commit
dab22df75b
4
TODO
4
TODO
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@ -1,3 +1,7 @@
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- C++/Python need an im_affinei_all, perhaps with a char* for the
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interpolator?
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blocking bugs
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=============
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@ -2,13 +2,17 @@
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*
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* 21/3/12
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* - from the tiff pyramid writer
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*
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* 5/7/12 (thanks Alexander Koshman)
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* - make tiles down to 1x1 pixels
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* - oop make right-hand edge tiles
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* - improve overlap handling
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* 7/7/12
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* - threaded write
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* 6/8/12 (thanks to Benjamin Gilbert for pointing out the errors)
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* - shrink down to a 1x1 pixel tile, even for very long and thin images
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* - round image size up on shrink
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* - write a .dzi file with the pyramid params
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* - default tile size and overlap now matches the openslide writer
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*/
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/*
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@ -62,6 +66,13 @@ typedef struct _Layer Layer;
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struct _Layer {
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VipsForeignSaveDz *dz;
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/* The real size of the image. image->Xsize and image->Ysize are
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* always even to make x2 shrink easy. The real image may be a
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* smaller, odd size,
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*/
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int width;
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int height;
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VipsImage *image; /* The image we build */
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/* The top of this strip of tiles, excluding the overlap. Go up from
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@ -128,7 +139,7 @@ vips_foreign_save_dz_dispose( GObject *gobject )
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/* Build a pyramid.
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*/
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static Layer *
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pyramid_build( VipsForeignSaveDz *dz, Layer *above, int w, int h )
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pyramid_build( VipsForeignSaveDz *dz, Layer *above, int width, int height )
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{
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VipsForeignSave *save = VIPS_FOREIGN_SAVE( dz );
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Layer *layer = VIPS_NEW( dz, Layer );
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@ -136,6 +147,9 @@ pyramid_build( VipsForeignSaveDz *dz, Layer *above, int w, int h )
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VipsRect strip;
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layer->dz = dz;
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layer->width = width;
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layer->height = height;
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layer->image = NULL;
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layer->strip = NULL;
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layer->copy = NULL;
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@ -150,13 +164,17 @@ pyramid_build( VipsForeignSaveDz *dz, Layer *above, int w, int h )
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layer->below = NULL;
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layer->above = above;
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/* We round the image size up to an even number to make x2 shrink
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* easy.
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*/
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layer->image = vips_image_new();
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if( vips_image_copy_fields( layer->image, save->ready ) ) {
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layer_free( layer );
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return( NULL );
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}
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layer->image->Xsize = w;
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layer->image->Ysize = h;
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layer->image->Xsize = width + (width & 1);
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layer->image->Ysize = height + (height & 1);
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layer->strip = vips_region_new( layer->image );
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layer->copy = vips_region_new( layer->image );
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@ -176,17 +194,20 @@ pyramid_build( VipsForeignSaveDz *dz, Layer *above, int w, int h )
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layer->write_y = 0;
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strip.left = 0;
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strip.top = 0;
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strip.width = w;
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strip.width = layer->image->Xsize;
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strip.height = dz->tile_height + dz->overlap + 1;
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if( vips_region_buffer( layer->strip, &strip ) ) {
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layer_free( layer );
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return( NULL );
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}
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if( w > 1 &&
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h > 1 ) {
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if( width > 1 ||
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height > 1 ) {
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/* Round up, so eg. a 5 pixel wide image becomes 3 a layer
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* down.
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*/
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if( !(layer->below = pyramid_build( dz,
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layer, w / 2, h / 2 )) ) {
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layer, (width + 1) / 2, (height + 1) / 2 )) ) {
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layer_free( layer );
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return( NULL );
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}
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@ -217,6 +238,37 @@ pyramid_mkdir( VipsForeignSaveDz *dz )
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return( 0 );
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}
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static int
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write_dzi( VipsForeignSaveDz *dz )
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{
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FILE *fp;
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char buf[PATH_MAX];
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char *name;
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name = g_path_get_basename( dz->dirname );
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vips_snprintf( buf, PATH_MAX, "%s/%s.dzi", dz->dirname, name );
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g_free( name );
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if( !(fp = vips__file_open_write( buf, TRUE )) )
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return( -1 );
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fprintf( fp, "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" );
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fprintf( fp, "<Image "
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"xmlns=\"http://schemas.microsoft.com/deepzoom/2008\"\n" );
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fprintf( fp, " Format=\"%s\"\n", dz->suffix + 1 );
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fprintf( fp, " Overlap=\"%d\"\n", dz->overlap );
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fprintf( fp, " TileSize=\"%d\"\n", dz->tile_width );
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fprintf( fp, " >\n" );
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fprintf( fp, " <Size \n" );
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fprintf( fp, " Height=\"%d\"\n", dz->layer->height );
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fprintf( fp, " Width=\"%d\"\n", dz->layer->width );
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fprintf( fp, " />\n" );
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fprintf( fp, "</Image>\n" );
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fclose( fp );
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return( 0 );
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}
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/* Generate area @target in @to using pixels in @from. VIPS_CODING_LABQ only.
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*/
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static void
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@ -341,6 +393,7 @@ shrink_region_uncoded( VipsRegion *from, VipsRegion *to, VipsRect *target )
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*/
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typedef struct _Strip {
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Layer *layer;
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VipsImage *image;
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/* Allocate the next tile on this boundary.
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@ -365,15 +418,22 @@ strip_init( Strip *strip, Layer *layer )
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strip->image = NULL;
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strip->x = 0;
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line.left = 0;
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line.top = layer->y - dz->overlap;
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line.width = layer->image->Xsize;
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line.height = dz->tile_height + 2 * dz->overlap;
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/* The image we wrap around our pixel buffer must be the full width,
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* including any rounding up, since we must have contiguous pixels.
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* We can trim the height down though.
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*
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* When we loop across the strip writing tiles we have to look out for
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* the smaller width.
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*/
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image.left = 0;
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image.top = 0;
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image.width = layer->image->Xsize;
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image.height = layer->image->Ysize;
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image.height = layer->height;
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line.left = 0;
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line.top = layer->y - dz->overlap;
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line.width = image.width;
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line.height = dz->tile_height + 2 * dz->overlap;
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vips_rect_intersectrect( &image, &line, &line );
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@ -395,6 +455,11 @@ strip_allocate( VipsThreadState *state, void *a, gboolean *stop )
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VipsRect image;
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image.left = 0;
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image.top = 0;
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image.width = layer->width;
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image.height = layer->height;
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/* Position this tile.
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*/
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state->pos.left = strip->x - dz->overlap;
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@ -402,11 +467,6 @@ strip_allocate( VipsThreadState *state, void *a, gboolean *stop )
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state->pos.width = dz->tile_width + 2 * dz->overlap;
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state->pos.height = state->im->Ysize;
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image.left = 0;
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image.top = 0;
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image.width = state->im->Xsize;
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image.height = state->im->Ysize;
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vips_rect_intersectrect( &image, &state->pos, &state->pos );
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state->x = strip->x;
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state->y = layer->y;
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@ -474,6 +534,59 @@ strip_save( Layer *layer )
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return( 0 );
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}
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/* A strip has filled, but the rightmost column and the bottom-most row may
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* not have if we've rounded the size up!
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*
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* Fill them, if necessary, by copyping the previous row/column.
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*/
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static void
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layer_generate_extras( Layer *layer )
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{
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VipsRegion *strip = layer->strip;
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/* We only work for full-width strips.
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*/
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g_assert( strip->valid.width == layer->image->Xsize );
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if( layer->width < layer->image->Xsize ) {
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int ps = VIPS_IMAGE_SIZEOF_PEL( strip->im );
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int b, y;
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/* Need to add a right-most column.
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*/
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for( y = 0; y < strip->valid.height; y++ ) {
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VipsPel *p = VIPS_REGION_ADDR( strip,
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layer->width - 1, strip->valid.top + y );
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VipsPel *q = p + ps;
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for( b = 0; b < ps; b++ )
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q[b] = p[b];
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}
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}
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if( layer->height < layer->image->Ysize ) {
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VipsRect last;
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/* The last two lines of the image.
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*/
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last.left = 0;
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last.top = layer->image->Ysize - 2;
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last.width = layer->image->Xsize;
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last.height = 2;
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/* Do we have them both? Fill the last with the next-to-last.
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*/
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vips_rect_intersectrect( &last, &strip->valid, &last );
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if( last.height == 2 ) {
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last.height = 1;
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vips_region_copy( strip, strip, &last,
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0, last.top + 1 );
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}
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}
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}
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static int strip_arrived( Layer *layer );
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/* Shrink what pixels we can from this layer into the layer below. If the
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@ -491,6 +604,11 @@ strip_shrink( Layer *layer )
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VipsRect target;
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VipsRect source;
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/* We may have an extra column of pixels on the right or
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* bottom that need filling: generate them.
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*/
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layer_generate_extras( layer );
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/* Our pixels might cross a strip boundary in the layer below, so we
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* have to write repeatedly until we run out of pixels.
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*/
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@ -534,10 +652,15 @@ strip_shrink( Layer *layer )
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below->write_y += target.height;
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/* If we've filled the strip of the layer below, let it know.
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* We can either fill the region, if it's somewhere half-way
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* down the image, or, if it's at the bottom, get to the last
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* writeable line.
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*/
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if( below->write_y == VIPS_RECT_BOTTOM( &to->valid ) &&
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strip_arrived( below ) )
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return( -1 );
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if( below->write_y == VIPS_RECT_BOTTOM( &to->valid ) ||
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below->write_y == below->height ) {
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if( strip_arrived( below ) )
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return( -1 );
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}
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}
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return( 0 );
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@ -635,6 +758,7 @@ pyramid_strip( VipsRegion *region, VipsRect *area, void *a )
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*/
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vips_region_copy( region, layer->strip,
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&target, target.left, target.top );
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layer->write_y += target.height;
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/* If we've filled the strip, let it know.
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@ -671,7 +795,8 @@ vips_foreign_save_dz_build( VipsObject *object )
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if( !(dz->layer = pyramid_build( dz,
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NULL, save->ready->Xsize, save->ready->Ysize )) )
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return( -1 );
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if( pyramid_mkdir( dz ) )
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if( pyramid_mkdir( dz ) ||
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write_dzi( dz ) )
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return( -1 );
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if( vips_sink_disc( save->ready, pyramid_strip, dz ) )
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@ -762,8 +887,8 @@ vips_foreign_save_dz_class_init( VipsForeignSaveDzClass *class )
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static void
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vips_foreign_save_dz_init( VipsForeignSaveDz *dz )
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{
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VIPS_SETSTR( dz->suffix, ".jpg" );
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dz->overlap = 0;
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dz->tile_width = 128;
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dz->tile_height = 128;
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VIPS_SETSTR( dz->suffix, ".jpeg" );
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dz->overlap = 1;
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dz->tile_width = 256;
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dz->tile_height = 256;
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}
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|
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108
po/vips7.pot
108
po/vips7.pot
|
|
@ -9,7 +9,7 @@ msgstr ""
|
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"Project-Id-Version: PACKAGE VERSION\n"
|
||||
"Report-Msgid-Bugs-To: http://bugzilla.gnome.org/enter_bug.cgi?"
|
||||
"product=glib&keywords=I18N+L10N&component=general\n"
|
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"POT-Creation-Date: 2012-07-20 15:34+0100\n"
|
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"POT-Creation-Date: 2012-07-23 11:27+0100\n"
|
||||
"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
|
||||
"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
|
||||
"Language-Team: LANGUAGE <LL@li.org>\n"
|
||||
|
|
@ -2589,141 +2589,141 @@ msgstr ""
|
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msgid "per-thread state for sink"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:210
|
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#: ../libvips/iofuncs/error.c:213
|
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msgid "windows error"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:219
|
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#: ../libvips/iofuncs/error.c:222
|
||||
msgid "unix error"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:310 ../libvips/iofuncs/error.c:311
|
||||
#: ../libvips/iofuncs/error.c:360 ../libvips/iofuncs/error.c:361
|
||||
#: ../libvips/iofuncs/error.c:313 ../libvips/iofuncs/error.c:314
|
||||
#: ../libvips/iofuncs/error.c:363 ../libvips/iofuncs/error.c:364
|
||||
#, c-format
|
||||
msgid "%s: "
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:310
|
||||
#: ../libvips/iofuncs/error.c:313
|
||||
msgid "vips diagnostic"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:360
|
||||
#: ../libvips/iofuncs/error.c:363
|
||||
msgid "vips warning"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:444
|
||||
#: ../libvips/iofuncs/error.c:453
|
||||
msgid "image must be uncoded"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:472
|
||||
#: ../libvips/iofuncs/error.c:481
|
||||
msgid "image coding must be NONE or LABQ"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:500
|
||||
#: ../libvips/iofuncs/error.c:509
|
||||
msgid "unknown image coding"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:526
|
||||
#: ../libvips/iofuncs/error.c:535
|
||||
msgid "Radiance coding only"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:552
|
||||
#: ../libvips/iofuncs/error.c:561
|
||||
msgid "LABQ coding only"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:576
|
||||
#: ../libvips/iofuncs/error.c:585
|
||||
msgid "image must one band"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:601
|
||||
#: ../libvips/iofuncs/error.c:610
|
||||
#, c-format
|
||||
msgid "image must have %d bands"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:626
|
||||
#: ../libvips/iofuncs/error.c:635
|
||||
msgid "image must have one or three bands"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:654
|
||||
#: ../libvips/iofuncs/error.c:663
|
||||
msgid "images must have the same number of bands, or one must be single-band"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:681
|
||||
#: ../libvips/iofuncs/error.c:690
|
||||
#, c-format
|
||||
msgid "image must have 1 or %d bands"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:705
|
||||
#: ../libvips/iofuncs/error.c:714
|
||||
msgid "image must be non-complex"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:729
|
||||
#: ../libvips/iofuncs/error.c:738
|
||||
msgid "image must be complex"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:755
|
||||
#: ../libvips/iofuncs/error.c:764
|
||||
#, c-format
|
||||
msgid "image must be %s"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:780
|
||||
#: ../libvips/iofuncs/error.c:789
|
||||
msgid "image must be integer"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:805
|
||||
#: ../libvips/iofuncs/error.c:814
|
||||
msgid "image must be unsigned integer"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:833
|
||||
#: ../libvips/iofuncs/error.c:842
|
||||
msgid "image must be 8- or 16-bit integer, signed or unsigned"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:860
|
||||
#: ../libvips/iofuncs/error.c:869
|
||||
msgid "image must be 8- or 16-bit unsigned integer"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:886
|
||||
#: ../libvips/iofuncs/error.c:895
|
||||
msgid "image must be 8- or 16-bit unsigned integer, or float"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:914
|
||||
#: ../libvips/iofuncs/error.c:923
|
||||
msgid "image must be unsigned int or float"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:939
|
||||
#: ../libvips/iofuncs/error.c:948
|
||||
msgid "images must match in size"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:965
|
||||
#: ../libvips/iofuncs/error.c:974
|
||||
msgid "images must have the same number of bands"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:1019
|
||||
#: ../libvips/iofuncs/error.c:1028
|
||||
msgid "images must have the same band format"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:1045
|
||||
#: ../libvips/iofuncs/error.c:1054
|
||||
msgid "images must have the same coding"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:1070
|
||||
#: ../libvips/iofuncs/error.c:1079
|
||||
#, c-format
|
||||
msgid "vector must have 1 or %d elements"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:1095
|
||||
#: ../libvips/iofuncs/error.c:1104
|
||||
msgid "histograms must have width or height 1"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:1100
|
||||
#: ../libvips/iofuncs/error.c:1109
|
||||
msgid "histograms must have not have more than 65536 elements"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:1129 ../libvips/iofuncs/error.c:1157
|
||||
#: ../libvips/iofuncs/error.c:1138 ../libvips/iofuncs/error.c:1166
|
||||
msgid "nonsense mask parameters"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/error.c:1182
|
||||
#: ../libvips/iofuncs/error.c:1191
|
||||
msgid "mask must be 1D"
|
||||
msgstr ""
|
||||
|
||||
|
|
@ -2883,71 +2883,75 @@ msgstr ""
|
|||
msgid "unable to mmap \"%s\" to same address"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/init.c:380
|
||||
#: ../libvips/iofuncs/init.c:402
|
||||
msgid "abort on first error or warning"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/init.c:405
|
||||
msgid "evaluate with N concurrent threads"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/init.c:383
|
||||
#: ../libvips/iofuncs/init.c:408
|
||||
msgid "set tile width to N (DEBUG)"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/init.c:386
|
||||
#: ../libvips/iofuncs/init.c:411
|
||||
msgid "set tile height to N (DEBUG)"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/init.c:389
|
||||
#: ../libvips/iofuncs/init.c:414
|
||||
msgid "set thinstrip height to N (DEBUG)"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/init.c:392
|
||||
#: ../libvips/iofuncs/init.c:417
|
||||
msgid "set fatstrip height to N (DEBUG)"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/init.c:395
|
||||
#: ../libvips/iofuncs/init.c:420
|
||||
msgid "show progress feedback"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/init.c:398
|
||||
#: ../libvips/iofuncs/init.c:423
|
||||
msgid "leak-check on exit"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/init.c:401
|
||||
#: ../libvips/iofuncs/init.c:426
|
||||
msgid "images larger than N are decompressed to disc"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/init.c:404
|
||||
#: ../libvips/iofuncs/init.c:429
|
||||
msgid "disable vectorised versions of operations"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/init.c:407
|
||||
#: ../libvips/iofuncs/init.c:432
|
||||
msgid "cache at most N operations"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/init.c:410
|
||||
#: ../libvips/iofuncs/init.c:435
|
||||
msgid "cache at most N bytes in memory"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/init.c:413
|
||||
#: ../libvips/iofuncs/init.c:438
|
||||
msgid "allow at most N open files"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/init.c:416
|
||||
#: ../libvips/iofuncs/init.c:441
|
||||
msgid "trace operation cache"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/init.c:419
|
||||
#: ../libvips/iofuncs/init.c:444
|
||||
msgid "dump operation cache on exit"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/init.c:422
|
||||
#: ../libvips/iofuncs/init.c:447
|
||||
msgid "print libvips version"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/init.c:445
|
||||
#: ../libvips/iofuncs/init.c:470
|
||||
msgid "VIPS Options"
|
||||
msgstr ""
|
||||
|
||||
#: ../libvips/iofuncs/init.c:445
|
||||
#: ../libvips/iofuncs/init.c:470
|
||||
msgid "Show VIPS options"
|
||||
msgstr ""
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue