[dali_2.3.21] Merge branch 'devel/master'

[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 48301a6..fb66fcc 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) 2022 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2023 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.
@@ -19,8 +19,10 @@
 
 // EXTERNAL INCLUDES
 #include <dali/devel-api/adaptor-framework/pixel-buffer.h>
+#include <dali/integration-api/processor-interface.h>
 #include <dali/public-api/rendering/texture-set.h>
 #include <string>
+#include <utility> // for std::pair
 
 // INTERNAL INCLUDES
 #include <dali-toolkit/devel-api/utility/npatch-utilities.h>
@@ -43,7 +45,7 @@ namespace Internal
  * small space and there's not usually a lot of them. Usually N patches are specified in
  * toolkit default style and there is 1-2 per control that are shared across the whole application.
  */
-class NPatchLoader
+class NPatchLoader : public Integration::Processor
 {
 public:
   /**
@@ -68,16 +70,7 @@ 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 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, bool preMultiplied);
+  NPatchData::NPatchDataId Load(TextureManager& textureManager, TextureUploadObserver* textureObserver, const VisualUrl& url, const Rect<int>& border, bool& preMultiplyOnLoad, bool synchronousLoading);
 
   /**
    * @brief Retrieve N patch data matching to an id
@@ -85,24 +78,47 @@ public:
    * @param [out] data const pointer to the NPatchData
    * @return true if data matching to id was really found
    */
-  bool GetNPatchData(const NPatchData::NPatchDataId id, const NPatchData*& data);
+  bool GetNPatchData(const NPatchData::NPatchDataId id, NPatchDataPtr& data);
 
   /**
-   * @brief Remove a texture matching id.
+   * @brief Request remove a texture matching id.
    * Erase the observer from the observer list of cache if we need.
-   * This API decrease cached NPatchInfo reference.
-   * If the NPatchInfo reference become 0, 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);
+  void RequestRemove(NPatchData::NPatchDataId id, TextureUploadObserver* textureObserver);
+
+protected: // Implementation of Processor
+  /**
+   * @copydoc Dali::Integration::Processor::Process()
+   */
+  void Process(bool postProcessor) override;
+
+  /**
+   * @copydoc Dali::Integration::Processor::GetProcessorName()
+   */
+  std::string_view GetProcessorName() const override
+  {
+    return "NPatchLoader";
+  }
 
 private:
   NPatchData::NPatchDataId GenerateUniqueNPatchDataId();
 
   int32_t GetCacheIndexFromId(const NPatchData::NPatchDataId id);
 
+  /**
+   * @brief Remove a texture matching id.
+   * Erase the observer from the observer list of cache if we need.
+   * This API decrease cached NPatchInfo reference.
+   * If the NPatchInfo reference become 0, the textureSet will be reset.
+   *
+   * @param [in] id cache data id
+   * @param [in] textureObserver The NPatchVisual that requested loading.
+   */
+  void Remove(NPatchData::NPatchDataId id, TextureUploadObserver* textureObserver);
+
 private:
   /**
    * @brief Information of NPatchData
@@ -110,39 +126,34 @@ private:
    */
   struct NPatchInfo
   {
-    NPatchInfo(NPatchData* data)
+    NPatchInfo(NPatchDataPtr data)
     : mData(data),
       mReferenceCount(1u)
     {
     }
     ~NPatchInfo()
     {
-      if(mData)
-      {
-        delete mData;
-      }
     }
-    NPatchInfo(NPatchInfo&& info) // move constructor
+    NPatchInfo(NPatchInfo&& info) noexcept // move constructor
     {
       mData                = std::move(info.mData);
       mReferenceCount      = info.mReferenceCount;
-      info.mData           = nullptr;
       info.mReferenceCount = 0u;
     }
-    NPatchInfo& operator=(NPatchInfo&& info) // move operator
+    NPatchInfo& operator=(NPatchInfo&& info) noexcept // move operator
     {
       mData                = std::move(info.mData);
       mReferenceCount      = info.mReferenceCount;
-      info.mData           = nullptr;
       info.mReferenceCount = 0u;
       return *this;
     }
 
-    NPatchInfo()                       = delete; // Do not use default constructor
-    NPatchInfo(const NPatchInfo& info) = delete; // Do not use copy constructor
+    NPatchInfo()                       = delete;            // Do not use default constructor
+    NPatchInfo(const NPatchInfo& info) = delete;            // Do not use copy constructor
+    NPatchInfo& operator=(const NPatchInfo& info) = delete; // Do not use copy assign
 
-    NPatchData*  mData;
-    std::int16_t mReferenceCount; ///< The number of N-patch visuals that use this data.
+    NPatchDataPtr mData;
+    std::int16_t  mReferenceCount; ///< The number of N-patch visuals that use this data.
   };
 
   /**
@@ -155,7 +166,7 @@ private:
    *                                   image has no alpha channel
    * @return NPatchData pointer that Load function will used.
    */
-  NPatchData* GetNPatchData(const VisualUrl& url, const Rect<int>& border, bool& preMultiplyOnLoad);
+  NPatchDataPtr GetNPatchData(const VisualUrl& url, const Rect<int>& border, bool& preMultiplyOnLoad);
 
 protected:
   /**
@@ -171,6 +182,10 @@ protected:
 private:
   NPatchData::NPatchDataId mCurrentNPatchDataId;
   std::vector<NPatchInfo>  mCache;
+
+  std::vector<std::pair<NPatchData::NPatchDataId, TextureUploadObserver*>> mRemoveQueue; ///< Queue of textures to remove at PostProcess. It will be cleared after PostProcess.
+
+  bool mRemoveProcessorRegistered : 1; ///< Flag if remove processor registered or not.
 };
 
 } // namespace Internal