#define DALI_TOOLKIT_NPATCH_LOADER_H
/*
- * Copyright (c) 2020 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2021 Samsung Electronics Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
*/
// EXTERNAL INCLUDES
-#include <string>
-#include <dali/public-api/rendering/texture-set.h>
-#include <dali/public-api/math/uint-16-pair.h>
-#include <dali/devel-api/common/owner-container.h>
#include <dali/devel-api/adaptor-framework/pixel-buffer.h>
+#include <dali/devel-api/common/owner-container.h>
+#include <dali/public-api/rendering/texture-set.h>
+#include <string>
-// INTERNAL HEADERS
+// INTERNAL INCLUDES
+#include <dali-toolkit/devel-api/utility/npatch-utilities.h>
+#include <dali-toolkit/internal/visuals/npatch-data.h>
#include <dali-toolkit/internal/visuals/texture-manager-impl.h>
namespace Dali
{
-
namespace Toolkit
{
-
namespace Internal
{
-
-namespace NPatchBuffer
-{
-
-void GetRedOffsetAndMask( Dali::Pixel::Format pixelFormat, int& byteOffset, int& bitMask );
-
-} // namespace NPatchBuffer
-
/**
* The manager for loading Npatch textures.
* It caches them internally for better performance; i.e. to avoid loading and
class NPatchLoader
{
public:
-
- typedef Dali::Vector< Uint16Pair > StretchRanges;
-
- enum
- {
- UNINITIALIZED_ID = 0 ///< uninitialised id, use to initialize ids
- };
-
- struct Data
- {
- Data()
- : url(),
- textureSet(),
- hash( 0 ),
- croppedWidth( 0 ),
- croppedHeight( 0 ),
- border( 0, 0, 0, 0 ),
- loadCompleted( false )
- {}
-
- std::string url; ///< Url of the N-Patch
- TextureSet textureSet; ///< Texture containing the cropped image
- StretchRanges stretchPixelsX; ///< X stretch pixels
- StretchRanges stretchPixelsY; ///< Y stretch pixels
- std::size_t hash; ///< Hash code for the Url
- uint32_t croppedWidth; ///< Width of the cropped middle part of N-patch
- uint32_t croppedHeight; ///< Height of the cropped middle part of N-patch
- Rect< int > border; ///< The size of the border
- bool loadCompleted; ///< True if the data loading is completed
- };
-
-public:
-
/**
* Constructor
*/
* @param [in] synchronousLoading True if the image will be loaded in synchronous time.
* @return id of the texture.
*/
- std::size_t Load( TextureManager& textureManager, TextureUploadObserver* textureObserver, const std::string& url, const Rect< int >& border, bool& preMultiplyOnLoad, bool synchronousLoading );
+ std::size_t Load(TextureManager& textureManager, TextureUploadObserver* textureObserver, const std::string& url, const Rect<int>& border, bool& preMultiplyOnLoad, bool synchronousLoading);
/**
* @brief Set loaded PixelBuffer and its information
*
* @param [in] id cache data id
* @param [in] pixelBuffer of loaded image
+ * @param [in] preMultiplied True if the image had pre-multiplied alpha applied
*/
- void SetNPatchData( std::size_t id, Devel::PixelBuffer& pixelBuffer );
+ void SetNPatchData(std::size_t id, Devel::PixelBuffer& pixelBuffer, bool preMultiplied);
/**
* @brief Retrieve N patch data matching to an id
* @param [in] id of data
- * @param [out] data const pointer to the data
+ * @param [out] data const pointer to the NPatchData
* @return true if data matching to id was really found
*/
- bool GetNPatchData( std::size_t id, const Data*& data );
+ bool GetNPatchData(const NPatchData::NPatchDataId id, const NPatchData*& data);
-protected:
+ /**
+ * @brief Remove a texture matching id.
+ * Erase the observer from the observer list of cache.
+ * If the observer list is empty, the textureSet will be reset.
+ *
+ * @param [in] id cache data id
+ * @param [in] textureObserver The NPatchVisual that requested loading.
+ */
+ void Remove(std::size_t id, TextureUploadObserver* textureObserver);
+
+private:
+ NPatchData::NPatchDataId GenerateUniqueNPatchDataId();
+
+ int32_t GetCacheIndexFromId(const NPatchData::NPatchDataId id);
+protected:
/**
* Undefined copy constructor.
*/
NPatchLoader& operator=(const NPatchLoader& rhs);
private:
-
- OwnerContainer< Data* > mCache;
-
+ NPatchData::NPatchDataId mCurrentNPatchDataId;
+ OwnerContainer<NPatchData*> mCache;
};
-} // name Internal
+} // namespace Internal
} // namespace Toolkit