Merge pull request #50 from KhangPham9/bugfix-resize-memory-leak

Created resize function to avoid recreating multiple LAppSpriteShaders.

Author: wada-at-live2d-com

CHANGELOG.md

@@ -5,6 +5,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 
+## [Unreleased]
+
+## Fixed
+
+* Fix unintended object recreating when resizing the window in the OpenGL Linux sample program.
+
+
 ## [5-r.4] - 2025-05-29
 
 ### Added

Samples/OpenGL/Demo/proj.linux.cmake/src/LAppDelegate.cpp

@@ -148,7 +148,7 @@ void LAppDelegate::Run()
         glfwGetWindowSize(LAppDelegate::GetInstance()->GetWindow(), &width, &height);
         if((_windowWidth!=width || _windowHeight!=height) && width>0 && height>0)
         {
-            _view->Initialize(width, height);
+            _view->ResizeWindow(width, height);
             _view->ResizeSprite();
 
             _windowWidth = width;

Samples/OpenGL/Demo/proj.linux.cmake/src/LAppView.cpp

@@ -30,7 +30,8 @@ LAppView::LAppView() :
     _gear(NULL),
     _power(NULL),
     _renderSprite(NULL),
-    _renderTarget(SelectTarget_None)
+    _renderTarget(SelectTarget_None),
+    _spriteShader(NULL)
 {
     _clearColor[0] = 1.0f;
     _clearColor[1] = 1.0f;
@@ -78,6 +79,12 @@ void LAppView::Initialize(int width, int height)
     _spriteShader = new LAppSpriteShader();
 }
 
+void LAppView::ResizeWindow(int width, int height)
+{
+    LAppView_Common::Initialize(width, height);
+}
+
+
 void LAppView::Render()
 {
     _back->Render();

Samples/OpenGL/Demo/proj.linux.cmake/src/LAppView.hpp

@@ -53,6 +53,14 @@ class LAppView : public LAppView_Common
     */
     virtual void Initialize(int width, int height) override;
 
+    /**
+    * @brief Resize the window view 
+    * 
+    * @param[in]       width        new view width
+    * @param[in]       height       new view height
+    */
+    void ResizeWindow(int width, int height);
+
     /**
     * @brief 描画する。
     */