Refactoring ImageVisualShaderFactory::GetShader

[platform/core/uifw/dali-toolkit.git] / dali-toolkit / internal / visuals / npatch-loader.h

diff --git a/dali-toolkit/internal/visuals/npatch-loader.h b/dali-toolkit/internal/visuals/npatch-loader.h
index 2c0e852..dd7f022 100644 (file)
--- a/dali-toolkit/internal/visuals/npatch-loader.h
+++ b/dali-toolkit/internal/visuals/npatch-loader.h
@@ -2,7 +2,7 @@
 #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.
@@ -18,24 +18,23 @@
  */
 
 // EXTERNAL INCLUDES
-#include <string>
-#include <dali/public-api/rendering/texture-set.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 INCLUDES
-#include <dali-toolkit/internal/visuals/texture-manager-impl.h>
 #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>
+#include <dali-toolkit/internal/visuals/visual-url.h>
 
 namespace Dali
 {
-
 namespace Toolkit
 {
-
 namespace Internal
 {
-
 /**
  * The manager for loading Npatch textures.
  * It caches them internally for better performance; i.e. to avoid loading and
@@ -48,41 +47,6 @@ namespace Internal
 class NPatchLoader
 {
 public:
-
-  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 ),
-      renderingMap{ nullptr }
-    {}
-
-    ~Data();
-
-    std::string url;                               ///< Url of the N-Patch
-    TextureSet textureSet;                         ///< Texture containing the cropped image
-    NPatchUtility::StretchRanges stretchPixelsX;   ///< X stretch pixels
-    NPatchUtility::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
-    void* renderingMap;                            ///< NPatch rendering data
-  };
-
-public:
-
   /**
    * Constructor
    */
@@ -105,26 +69,41 @@ public:
    * @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 VisualUrl& 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.
    */
@@ -136,12 +115,11 @@ protected:
   NPatchLoader& operator=(const NPatchLoader& rhs);
 
 private:
-
-  OwnerContainer< Data* > mCache;
-
+  NPatchData::NPatchDataId    mCurrentNPatchDataId;
+  OwnerContainer<NPatchData*> mCache;
 };
 
-} // name Internal
+} // namespace Internal
 
 } // namespace Toolkit