Fixed loader, main menu and level selector

src/graphics/RenderManager.cpp

@@ -82,16 +82,35 @@ void RenderManager::beginFrame() {
         return;
     }
 
-    // Clear the screen
+    // Trace beginFrame entry
+    {
+        FILE* f = fopen("tetris_trace.log", "a"); if (f) { fprintf(f, "RenderManager::beginFrame entry\n"); fclose(f); }
+    }
+
+    // Clear the screen (wrapped with trace)
     clear(12, 12, 16, 255); // Dark background similar to original
+
+    // Trace after clear
+    {
+        FILE* f = fopen("tetris_trace.log", "a"); if (f) { fprintf(f, "RenderManager::beginFrame after clear\n"); fclose(f); }
+    }
 }
 
 void RenderManager::endFrame() {
     if (!m_initialized || !m_renderer) {
         return;
     }
+    // Trace before present
+    {
+        FILE* f = fopen("tetris_trace.log", "a"); if (f) { fprintf(f, "RenderManager::endFrame before present\n"); fclose(f); }
+    }
 
     SDL_RenderPresent(m_renderer);
+
+    // Trace after present
+    {
+        FILE* f = fopen("tetris_trace.log", "a"); if (f) { fprintf(f, "RenderManager::endFrame after present\n"); fclose(f); }
+    }
 }
 
 void RenderManager::setLogicalSize(int width, int height) {
@@ -146,7 +165,14 @@ void RenderManager::renderTexture(SDL_Texture* texture, const SDL_FRect* src, co
         return;
     }
 
+    // Trace renderTexture usage
+    {
+        FILE* f = fopen("tetris_trace.log", "a"); if (f) { fprintf(f, "RenderManager::renderTexture entry tex=%llu src=%p dst=%p\n", (unsigned long long)(uintptr_t)texture, (void*)src, (void*)dst); fclose(f); }
+    }
     SDL_RenderTexture(m_renderer, texture, src, dst);
+    {
+        FILE* f = fopen("tetris_trace.log", "a"); if (f) { fprintf(f, "RenderManager::renderTexture after SDL_RenderTexture tex=%llu\n", (unsigned long long)(uintptr_t)texture); fclose(f); }
+    }
 }
 
 void RenderManager::renderTexture(SDL_Texture* texture, float x, float y) {
@@ -230,6 +256,15 @@ void RenderManager::getWindowSize(int& width, int& height) const {
     height = m_windowHeight;
 }
 
+void RenderManager::getTextureSize(SDL_Texture* tex, int& w, int& h) const {
+    if (!tex) { w = 0; h = 0; return; }
+    // SDL3 provides SDL_GetTextureSize which accepts float or int pointers depending on overloads
+    float fw = 0.0f, fh = 0.0f;
+    SDL_GetTextureSize(tex, &fw, &fh);
+    w = int(fw + 0.5f);
+    h = int(fh + 0.5f);
+}
+
 void RenderManager::updateLogicalScale() {
     if (!m_initialized || !m_renderer) {
         return;

src/graphics/RenderManager.h

@@ -52,6 +52,8 @@ public:
     // Direct access to SDL objects (temporary, will be removed later)
     SDL_Renderer* getSDLRenderer() const { return m_renderer; }
     SDL_Window* getSDLWindow() const { return m_window; }
+    // Texture queries
+    void getTextureSize(SDL_Texture* tex, int& w, int& h) const;
 
     // State queries
     bool isInitialized() const { return m_initialized; }