Fixed resource loader

src/app/AssetLoader.cpp

@@ -1,6 +1,10 @@
 #include "app/AssetLoader.h"
 #include <SDL3_image/SDL_image.h>
 #include <algorithm>
+#include "app/TextureLoader.h"
+
+#include "utils/ImagePathResolver.h"
+#include <filesystem>
 
 AssetLoader::AssetLoader() = default;
 
@@ -37,6 +41,10 @@ void AssetLoader::shutdown() {
     m_renderer = nullptr;
 }
 
+void AssetLoader::setResourceManager(resources::ResourceManager* mgr) {
+    m_resourceManager = mgr;
+}
+
 void AssetLoader::setBasePath(const std::string& basePath) {
     m_basePath = basePath;
 }
@@ -65,24 +73,25 @@ bool AssetLoader::performStep() {
 
     std::string fullPath = m_basePath.empty() ? path : (m_basePath + "/" + path);
 
-    SDL_Surface* surf = IMG_Load(fullPath.c_str());
-    if (!surf) {
-        std::lock_guard<std::mutex> lk(m_errorsMutex);
-        m_errors.push_back(std::string("IMG_Load failed: ") + fullPath + " -> " + SDL_GetError());
+    // Diagnostic: resolve path and check file existence
+    const std::string resolved = AssetPath::resolveImagePath(path);
+    bool exists = false;
+    try { if (!resolved.empty()) exists = std::filesystem::exists(std::filesystem::u8path(resolved)); } catch (...) { exists = false; }
+
+    // Use TextureLoader to centralize loading and ResourceManager caching
+    TextureLoader loader(m_loadedTasks, m_currentLoading, m_currentLoadingMutex, m_errors, m_errorsMutex);
+    loader.setResourceManager(m_resourceManager);
+    // Pass the original queued path (not the full resolved path) so caching keys stay consistent
+    SDL_Texture* tex = loader.loadFromImage(m_renderer, path);
+    if (!tex) {
+        // errors have been recorded by TextureLoader
     } else {
-        SDL_Texture* tex = SDL_CreateTextureFromSurface(m_renderer, surf);
-        SDL_DestroySurface(surf);
-        if (!tex) {
-            std::lock_guard<std::mutex> lk(m_errorsMutex);
-            m_errors.push_back(std::string("CreateTexture failed: ") + fullPath);
-        } else {
-            std::lock_guard<std::mutex> lk(m_texturesMutex);
-            auto& slot = m_textures[path];
-            if (slot && slot != tex) {
-                SDL_DestroyTexture(slot);
-            }
-            slot = tex;
+        std::lock_guard<std::mutex> lk(m_texturesMutex);
+        auto& slot = m_textures[path];
+        if (slot && slot != tex) {
+            SDL_DestroyTexture(slot);
         }
+        slot = tex;
     }
 
     m_loadedTasks.fetch_add(1, std::memory_order_relaxed);
@@ -104,12 +113,17 @@ void AssetLoader::adoptTexture(const std::string& path, SDL_Texture* texture) {
         return;
     }
 
+    // register in local map and resource manager
     std::lock_guard<std::mutex> lk(m_texturesMutex);
     auto& slot = m_textures[path];
     if (slot && slot != texture) {
         SDL_DestroyTexture(slot);
     }
     slot = texture;
+    if (m_resourceManager) {
+        std::shared_ptr<void> sp(texture, [](void* t){ SDL_DestroyTexture(static_cast<SDL_Texture*>(t)); });
+        m_resourceManager->put(path, sp);
+    }
 }
 
 float AssetLoader::getProgress() const {

src/app/AssetLoader.h

@@ -6,6 +6,7 @@
 #include <mutex>
 #include <atomic>
 #include <unordered_map>
+#include "../resources/ResourceManager.h"
 
 // Lightweight AssetLoader scaffold.
 // Responsibilities:
@@ -22,6 +23,7 @@ public:
     void shutdown();
 
     void setBasePath(const std::string& basePath);
+    void setResourceManager(resources::ResourceManager* mgr);
 
     // Queue a texture path (relative to base path) for loading.
     void queueTexture(const std::string& path);
@@ -49,6 +51,7 @@ public:
 private:
     SDL_Renderer* m_renderer = nullptr;
     std::string m_basePath;
+    resources::ResourceManager* m_resourceManager = nullptr;
 
     // queued paths (simple FIFO)
     std::vector<std::string> m_queue;

src/app/TetrisApp.cpp

@@ -68,6 +68,7 @@
 #include "ui/MenuLayout.h"
 
 #include "utils/ImagePathResolver.h"
+#include "../resources/ResourceManager.h"
 
 // ---------- Game config ----------
 static constexpr int LOGICAL_W = 1200;
@@ -187,6 +188,7 @@ struct TetrisApp::Impl {
     AssetLoader assetLoader;
     std::unique_ptr<LoadingManager> loadingManager;
     std::unique_ptr<TextureLoader> textureLoader;
+    resources::ResourceManager resourceManager;
 
     FontAtlas pixelFont;
     FontAtlas font;
@@ -427,6 +429,8 @@ int TetrisApp::Impl::init()
 
     // Asset loader (creates SDL_Textures on the main thread)
     assetLoader.init(renderer);
+    // Wire resource manager into loader so textures are cached and reused
+    assetLoader.setResourceManager(&resourceManager);
     loadingManager = std::make_unique<LoadingManager>(&assetLoader);
 
     // Legacy image loader (used only as a fallback when AssetLoader misses)
@@ -436,6 +440,8 @@ int TetrisApp::Impl::init()
         currentLoadingMutex,
         assetLoadErrors,
         assetLoadErrorsMutex);
+    // Let legacy TextureLoader access the same resource cache
+    textureLoader->setResourceManager(&resourceManager);
 
     // Load scores asynchronously but keep the worker alive until shutdown
     scoreLoader = std::jthread([this]() {
@@ -1785,6 +1791,8 @@ void TetrisApp::Impl::runLoop()
                     nextPanelTex = assetLoader.getTexture(Assets::NEXT_PANEL);
                     holdPanelTex = assetLoader.getTexture(Assets::HOLD_PANEL);
 
+                    // texture retrieval diagnostics removed
+
                     auto ensureTextureSize = [&](SDL_Texture* tex, int& outW, int& outH) {
                         if (!tex) return;
                         if (outW > 0 && outH > 0) return;

src/app/TextureLoader.cpp

@@ -6,6 +6,8 @@
 #include <mutex>
 #include <sstream>
 
+#include <filesystem>
+
 #include "utils/ImagePathResolver.h"
 
 TextureLoader::TextureLoader(
@@ -45,6 +47,18 @@ SDL_Texture* TextureLoader::loadFromImage(SDL_Renderer* renderer, const std::str
     const std::string resolvedPath = AssetPath::resolveImagePath(path);
     setCurrentLoadingFile(resolvedPath.empty() ? path : resolvedPath);
 
+    // Check filesystem existence for diagnostics (no console log)
+    bool fileExists = false;
+    try { if (!resolvedPath.empty()) fileExists = std::filesystem::exists(std::filesystem::u8path(resolvedPath)); } catch (...) { fileExists = false; }
+    // If resource manager provided, check cache first using the original asset key (path)
+    if (resourceManager_) {
+        if (auto sp = resourceManager_->get<SDL_Texture>(path)) {
+            clearCurrentLoadingFile();
+            loadedTasks_.fetch_add(1);
+            return sp.get();
+        }
+    }
+
     SDL_Surface* surface = IMG_Load(resolvedPath.c_str());
     if (!surface) {
         {
@@ -54,7 +68,7 @@ SDL_Texture* TextureLoader::loadFromImage(SDL_Renderer* renderer, const std::str
         }
         loadedTasks_.fetch_add(1);
         clearCurrentLoadingFile();
-        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to load image %s (resolved: %s): %s", path.c_str(), resolvedPath.c_str(), SDL_GetError());
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to load image %s (resolved: %s) exists=%s: %s", path.c_str(), resolvedPath.c_str(), fileExists ? "yes" : "no", SDL_GetError());
         return nullptr;
     }
 
@@ -66,6 +80,7 @@ SDL_Texture* TextureLoader::loadFromImage(SDL_Renderer* renderer, const std::str
     }
 
     SDL_Texture* texture = SDL_CreateTextureFromSurface(renderer, surface);
+    // surface size preserved in outW/outH; no console log
     SDL_DestroySurface(surface);
 
     if (!texture) {
@@ -80,6 +95,15 @@ SDL_Texture* TextureLoader::loadFromImage(SDL_Renderer* renderer, const std::str
         return nullptr;
     }
 
+    // No texture-size console diagnostics here
+
+    // cache in resource manager if present
+    if (resourceManager_) {
+        std::shared_ptr<void> sp(texture, [](void* t){ SDL_DestroyTexture(static_cast<SDL_Texture*>(t)); });
+        // store under original asset key (path) so callers using logical asset names find them
+        resourceManager_->put(path, sp);
+    }
+
     loadedTasks_.fetch_add(1);
     clearCurrentLoadingFile();
 

src/app/TextureLoader.h

@@ -6,6 +6,7 @@
 #include <mutex>
 #include <string>
 #include <vector>
+#include "../resources/ResourceManager.h"
 
 class TextureLoader {
 public:
@@ -16,6 +17,8 @@ public:
         std::vector<std::string>& assetLoadErrors,
         std::mutex& assetLoadErrorsMutex);
 
+    void setResourceManager(resources::ResourceManager* mgr) { resourceManager_ = mgr; }
+
     SDL_Texture* loadFromImage(SDL_Renderer* renderer, const std::string& path, int* outW = nullptr, int* outH = nullptr);
 
 private:
@@ -28,4 +31,6 @@ private:
     void setCurrentLoadingFile(const std::string& filename);
     void clearCurrentLoadingFile();
     void recordAssetLoadError(const std::string& message);
+
+    resources::ResourceManager* resourceManager_ = nullptr;
 };

src/core/assets/AssetManager.cpp

@@ -7,6 +7,8 @@
 #include <SDL3_ttf/SDL_ttf.h>
 #include <filesystem>
 #include "../../utils/ImagePathResolver.h"
+#include "../../core/Config.h"
+#include "../../resources/AssetPaths.h"
 
 AssetManager::AssetManager() 
     : m_renderer(nullptr)
@@ -103,7 +105,34 @@ SDL_Texture* AssetManager::loadTexture(const std::string& id, const std::string&
 
 SDL_Texture* AssetManager::getTexture(const std::string& id) const {
     auto it = m_textures.find(id);
-    return (it != m_textures.end()) ? it->second : nullptr;
+    if (it != m_textures.end()) return it->second;
+
+    // Lazy fallback: attempt to load well-known short ids from configured asset paths.
+    std::vector<std::string> candidates;
+    if (id == "logo") {
+        candidates.push_back(std::string(Assets::LOGO));
+        candidates.push_back(Config::Assets::LOGO_BMP);
+    } else if (id == "logo_small") {
+        candidates.push_back(Config::Assets::LOGO_SMALL_BMP);
+        candidates.push_back(std::string(Assets::LOGO));
+    } else if (id == "background") {
+        candidates.push_back(std::string(Assets::MAIN_SCREEN));
+        candidates.push_back(Config::Assets::BACKGROUND_BMP);
+    } else if (id == "blocks") {
+        candidates.push_back(std::string(Assets::BLOCKS_SPRITE));
+        candidates.push_back(Config::Assets::BLOCKS_BMP);
+    } else if (id == "asteroids") {
+        candidates.push_back(std::string(Assets::ASTEROID_SPRITE));
+    }
+
+    for (const auto &candidatePath : candidates) {
+        if (candidatePath.empty()) continue;
+        AssetManager* self = const_cast<AssetManager*>(this);
+        SDL_Texture* tex = self->loadTexture(id, candidatePath);
+        if (tex) return tex;
+    }
+
+    return nullptr;
 }
 
 bool AssetManager::unloadTexture(const std::string& id) {

src/renderer/Renderer.h

@@ -0,0 +1,20 @@
+#pragma once
+
+#include <SDL3/SDL.h>
+#include <memory>
+
+namespace renderer {
+
+class Renderer {
+public:
+    virtual ~Renderer() = default;
+
+    // Wrap common operations used by renderers
+    virtual SDL_Texture* createTextureFromSurface(SDL_Surface* surf) = 0;
+    virtual void destroyTexture(SDL_Texture* tex) = 0;
+    virtual void copy(SDL_Texture* tex, const SDL_Rect* src, const SDL_Rect* dst) = 0;
+    virtual void clear(const SDL_Color& color) = 0;
+    virtual void present() = 0;
+};
+
+} // namespace renderer

src/renderer/SDLRenderer.cpp

@@ -0,0 +1,46 @@
+#include "Renderer.h"
+#include <SDL3/SDL.h>
+
+namespace renderer {
+
+class SDLRendererImpl : public Renderer {
+public:
+    explicit SDLRendererImpl(SDL_Renderer* rdr) : rdr_(rdr) {}
+    ~SDLRendererImpl() override = default;
+
+    SDL_Texture* createTextureFromSurface(SDL_Surface* surf) override {
+        if (!rdr_ || !surf) return nullptr;
+        return SDL_CreateTextureFromSurface(rdr_, surf);
+    }
+
+    void destroyTexture(SDL_Texture* tex) override {
+        if (tex) SDL_DestroyTexture(tex);
+    }
+
+    void copy(SDL_Texture* tex, const SDL_Rect* src, const SDL_Rect* dst) override {
+        if (!rdr_ || !tex) return;
+        // SDL_RenderCopy mapping differs across SDL versions; defer to existing renderers
+        SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION, "SDLRenderer::copy called — fallback no-op (use RenderManager for real draws)");
+    }
+
+    void clear(const SDL_Color& color) override {
+        if (!rdr_) return;
+        SDL_SetRenderDrawColor(rdr_, color.r, color.g, color.b, color.a);
+        SDL_RenderClear(rdr_);
+    }
+
+    void present() override {
+        if (!rdr_) return;
+        SDL_RenderPresent(rdr_);
+    }
+
+private:
+    SDL_Renderer* rdr_ = nullptr;
+};
+
+// Factory helper
+std::unique_ptr<Renderer> MakeSDLRenderer(SDL_Renderer* rdr) {
+    return std::make_unique<SDLRendererImpl>(rdr);
+}
+
+} // namespace renderer

src/resources/ResourceManager.cpp

@@ -0,0 +1,41 @@
+#include "ResourceManager.h"
+#include <future>
+
+namespace resources {
+
+ResourceManager::ResourceManager() = default;
+ResourceManager::~ResourceManager() = default;
+
+std::future<std::shared_ptr<void>> ResourceManager::loadAsync(const std::string& key, std::function<std::shared_ptr<void>(const std::string&)> loader)
+{
+    // Quick check for existing cached resource
+    {
+        std::lock_guard<std::mutex> lk(mutex_);
+        auto it = cache_.find(key);
+        if (it != cache_.end()) {
+            // Return already-available resource (keep strong ref)
+            auto sp = it->second;
+            if (sp) {
+                return std::async(std::launch::deferred, [sp]() { return sp; });
+            }
+        }
+    }
+
+    // Launch async loader
+    return std::async(std::launch::async, [this, key, loader]() {
+        auto res = loader(key);
+        if (res) {
+            std::lock_guard<std::mutex> lk(mutex_);
+            cache_[key] = res; // store strong reference
+        }
+        return res;
+    });
+}
+
+void ResourceManager::put(const std::string& key, std::shared_ptr<void> resource)
+{
+    std::lock_guard<std::mutex> lk(mutex_);
+    cache_[key] = resource; // store strong reference so callers using raw pointers stay valid
+}
+
+} // namespace resources

src/resources/ResourceManager.h

@@ -0,0 +1,43 @@
+#pragma once
+
+#include <string>
+#include <memory>
+#include <unordered_map>
+#include <mutex>
+#include <future>
+#include <functional>
+
+namespace resources {
+
+class ResourceManager {
+public:
+    ResourceManager();
+    ~ResourceManager();
+
+    // Return cached resource if available and of the right type
+    template<typename T>
+    std::shared_ptr<T> get(const std::string& key)
+    {
+        std::lock_guard<std::mutex> lk(mutex_);
+        auto it = cache_.find(key);
+        if (it == cache_.end()) return nullptr;
+        auto sp = it->second;
+        if (!sp) { cache_.erase(it); return nullptr; }
+        return std::static_pointer_cast<T>(sp);
+    }
+
+    // Asynchronously load a resource using the provided loader function.
+    // The loader must return a shared_ptr to the concrete resource (boxed as void).
+    std::future<std::shared_ptr<void>> loadAsync(const std::string& key, std::function<std::shared_ptr<void>(const std::string&)> loader);
+
+    // Insert a resource into the cache (thread-safe)
+    void put(const std::string& key, std::shared_ptr<void> resource);
+
+private:
+    // Keep strong ownership of cached resources so they remain valid
+    // while present in the cache.
+    std::unordered_map<std::string, std::shared_ptr<void>> cache_;
+    std::mutex mutex_;
+};
+
+} // namespace resources