just one sink_disc() for magicksave
we used to cut the input image into tiles, then sink_disc() for each one ... instead, make a single sink_disc() and chop in _generate simpler and faster
This commit is contained in:
John Cupitt
parent
30b5c49d0b
commit
f41c1439c9
@ -57,13 +57,19 @@ typedef struct _VipsForeignSaveMagick {
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char *format;
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int quality;
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Image *images;
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ImageInfo *image_info;
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ExceptionInfo *exception;
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Image *current_image;
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char *map;
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StorageType storage_type;
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Image *images;
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Image *current_image;
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int page_height;
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/* The position of current_image in the output.
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*/
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VipsRect position;
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} VipsForeignSaveMagick;
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typedef VipsForeignSaveClass VipsForeignSaveMagickClass;
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@ -89,15 +95,48 @@ vips_foreign_save_magick_dispose( GObject *gobject )
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dispose( gobject );
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}
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/* Move current_image on to the next image we will write.
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*/
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static int
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vips_foreign_save_magick_set_properties( VipsForeignSaveMagick *magick,
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Image *image, VipsImage *im )
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vips_foreign_save_magick_next_image( VipsForeignSaveMagick *magick )
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{
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VipsObjectClass *class = VIPS_OBJECT_GET_CLASS( magick );
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VipsForeignSave *save = (VipsForeignSave *) magick;
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VipsImage *im = save->ready;
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Image *image;
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int status;
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int number;
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const char *str;
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g_assert( !magick->current_image );
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if( magick->images == NULL ) {
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if( !(image = magick_acquire_image( magick->image_info,
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magick->exception )) )
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return( -1 );
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magick->images = image;
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magick->position.top = 0;
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magick->position.left = 0;
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magick->position.width = im->Xsize;
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magick->position.height = magick->page_height;
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}
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else {
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image = GetLastImageInList( magick->images );
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magick_acquire_next_image( magick->image_info, image,
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magick->exception );
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if( GetNextImageInList( image ) == NULL )
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return( -1 );
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image = SyncNextImageInList( image );
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magick->position.top += magick->page_height;
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}
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if( !magick_set_image_size( image,
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im->Xsize, magick->page_height, magick->exception ) )
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return( -1 );
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if( vips_image_get_typeof( im, "gif-delay" ) &&
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!vips_image_get_int( im, "gif-delay", &number ) )
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image->delay = (size_t) number;
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@ -120,96 +159,69 @@ vips_foreign_save_magick_set_properties( VipsForeignSaveMagick *magick,
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return( -1 );
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}
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magick->current_image = image;
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return( 0 );
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}
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/* We've written all the pixels to current_image ... finish it off ready to
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* move on.
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*/
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static void
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vips_foreign_save_magick_end_image( VipsForeignSaveMagick *magick )
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{
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if( magick->current_image ) {
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magick_inherit_exception( magick->exception,
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magick->current_image );
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magick->current_image = NULL;
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}
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}
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/* Another block of pixels have arrived from libvips.
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*/
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static int
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magick_write_block( VipsRegion *region, VipsRect *area, void *a )
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vips_foreign_save_magick_write_block( VipsRegion *region, VipsRect *area,
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void *a )
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{
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VipsForeignSaveMagick *magick = (VipsForeignSaveMagick *) a;
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VipsObjectClass *class = VIPS_OBJECT_GET_CLASS( magick );
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int status;
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void *p;
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VipsRect pixels;
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p = VIPS_REGION_ADDR( region, area->left, area->top );
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pixels = region->valid;
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do {
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VipsRect hit;
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void *p;
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int status;
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status = magick_import_pixels( magick->current_image,
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area->left, area->top, area->width, area->height,
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magick->map, magick->storage_type,
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p,
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magick->exception );
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return( status == MagickFalse ? -1 : 0 );
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}
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static int
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vips_foreign_save_magick_create_one( VipsForeignSaveMagick *magick,
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VipsImage *im )
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{
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Image *image;
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int status;
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if( magick->images == NULL ) {
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if( !(image = magick_acquire_image( magick->image_info,
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magick->exception )) )
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if( !magick->current_image &&
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vips_foreign_save_magick_next_image( magick ) )
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return( -1 );
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magick->images = image;
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}
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else {
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image = GetLastImageInList( magick->images );
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magick_acquire_next_image( magick->image_info, image,
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magick->exception );
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if( GetNextImageInList( image ) == NULL )
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vips_rect_intersectrect( &pixels, &magick->position, &hit );
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p = VIPS_REGION_ADDR( region, hit.left, hit.top );
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if( !magick_import_pixels( magick->current_image,
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hit.left, hit.top - magick->position.top,
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hit.width, hit.height,
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magick->map, magick->storage_type,
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p,
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magick->exception ) ) {
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magick_vips_error( class->nickname,
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magick->exception );
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return( -1 );
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}
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image = SyncNextImageInList( image );
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}
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/* Have we filled the page.
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*/
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if( VIPS_RECT_BOTTOM( &hit ) ==
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VIPS_RECT_BOTTOM( &magick->position ) )
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vips_foreign_save_magick_end_image( magick );
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if( !magick_set_image_size( image, im->Xsize, im->Ysize,
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magick->exception ) )
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return( -1 );
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if( vips_foreign_save_magick_set_properties( magick, image, im ) )
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return( -1 );
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pixels.top += hit.height;
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pixels.height -= hit.height;
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} while( pixels.height > 0 );
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magick->current_image = image;
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status = vips_sink_disc( im, magick_write_block, magick );
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magick_inherit_exception( magick->exception, image );
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return( status );
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}
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static int
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vips_foreign_save_magick_create( VipsForeignSaveMagick *magick, VipsImage *im )
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{
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int page_height;
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int status;
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int top;
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page_height = 0;
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if( vips_image_get_typeof( im, VIPS_META_PAGE_HEIGHT ) &&
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vips_image_get_int( im, VIPS_META_PAGE_HEIGHT, &page_height ) )
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;
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if( page_height <= 0 )
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page_height = im->Ysize;
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status = 0;
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for( top = 0; top < im->Ysize; top += page_height ) {
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VipsImage *x;
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if( vips_crop( im, &x, 0, top, im->Xsize, page_height, NULL ) )
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return( -1 );
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status = vips_foreign_save_magick_create_one( magick, x );
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g_object_unref( x );
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if( status )
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break;
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}
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return( status );
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return( 0 );
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}
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static int
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@ -311,10 +323,17 @@ vips_foreign_save_magick_build( VipsObject *object )
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if( magick->quality > 0 )
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magick->image_info->quality = magick->quality;
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if( vips_foreign_save_magick_create( magick, im ) ) {
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magick_vips_error( class->nickname, magick->exception );
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return( -1 );
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}
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magick->page_height = 0;
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if( vips_image_get_typeof( im, VIPS_META_PAGE_HEIGHT ) &&
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vips_image_get_int( im, VIPS_META_PAGE_HEIGHT,
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&magick->page_height ) )
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return( -1 );
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if( magick->page_height <= 0 )
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magick->page_height = im->Ysize;
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if( vips_sink_disc( im,
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vips_foreign_save_magick_write_block, magick ) )
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return( -1 );
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return( 0 );
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}
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