41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
#ifndef STAR_IMAGE_METADATA_DATABASE_HPP
|
|
#define STAR_IMAGE_METADATA_DATABASE_HPP
|
|
|
|
#include "StarRect.hpp"
|
|
#include "StarMap.hpp"
|
|
#include "StarString.hpp"
|
|
#include "StarThread.hpp"
|
|
|
|
namespace Star {
|
|
|
|
STAR_CLASS(ImageMetadataDatabase);
|
|
|
|
// Caches image size, image spaces, and nonEmptyRegion completely until a
|
|
// reload, does not expire cached values in a TTL based way like Assets,
|
|
// because they are expensive to compute and cheap to keep around.
|
|
class ImageMetadataDatabase {
|
|
public:
|
|
Vec2U imageSize(String const& path) const;
|
|
List<Vec2I> imageSpaces(String const& path, Vec2F position, float fillLimit, bool flip) const;
|
|
RectU nonEmptyRegion(String const& path) const;
|
|
|
|
private:
|
|
// Removes image processing directives that don't affect image spaces /
|
|
// non-empty regions.
|
|
static String filterProcessing(String const& path);
|
|
|
|
Vec2U calculateImageSize(String const& path) const;
|
|
|
|
// Path, position, fillLimit, and flip
|
|
typedef tuple<String, Vec2I, float, bool> SpacesEntry;
|
|
|
|
mutable Mutex m_mutex;
|
|
mutable StringMap<Vec2U> m_sizeCache;
|
|
mutable HashMap<SpacesEntry, List<Vec2I>> m_spacesCache;
|
|
mutable StringMap<RectU> m_regionCache;
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|