initial commit-moved from vulkan_guide

src/core/engine_context.h

@@ -0,0 +1,77 @@
+#pragma once
+
+#include <memory>
+#include <core/vk_types.h>
+#include <core/vk_descriptors.h>
+// Avoid including vk_scene.h here to prevent cycles
+
+struct EngineStats
+{
+    float frametime;
+    int triangle_count;
+    int drawcall_count;
+    float scene_update_time;
+    float mesh_draw_time;
+};
+
+class DeviceManager;
+class ResourceManager;
+class SwapchainManager;
+class DescriptorManager;
+class SamplerManager;
+class SceneManager;
+class MeshAsset;
+struct DrawContext;
+struct GPUSceneData;
+class ComputeManager;
+class PipelineManager;
+struct FrameResources;
+struct SDL_Window;
+class AssetManager;
+class RenderGraph;
+
+class EngineContext
+{
+public:
+    // Owned shared resources
+    std::shared_ptr<DeviceManager> device;
+    std::shared_ptr<ResourceManager> resources;
+    std::shared_ptr<DescriptorAllocatorGrowable> descriptors;
+
+    // Non-owning pointers to global managers owned by VulkanEngine
+    SwapchainManager* swapchain = nullptr;
+    DescriptorManager* descriptorLayouts = nullptr;
+    SamplerManager* samplers = nullptr;
+    SceneManager* scene = nullptr;
+
+    // Per-frame and subsystem pointers for modules to use without VulkanEngine
+    FrameResources* currentFrame = nullptr;      // set by engine each frame
+    EngineStats* stats = nullptr;                // points to engine stats
+    ComputeManager* compute = nullptr;           // compute subsystem
+    PipelineManager* pipelines = nullptr;        // graphics pipeline manager
+    RenderGraph* renderGraph = nullptr;          // render graph (built per-frame)
+    SDL_Window* window = nullptr;                // SDL window handle
+
+    // Frequently used values
+    VkExtent2D drawExtent{};
+
+    // Optional convenience content pointers (moved to AssetManager for meshes)
+
+    // Assets
+    AssetManager* assets = nullptr;              // non-owning pointer to central AssetManager
+
+    // Accessors
+    DeviceManager *getDevice() const { return device.get(); }
+    ResourceManager *getResources() const { return resources.get(); }
+    DescriptorAllocatorGrowable *getDescriptors() const { return descriptors.get(); }
+    SwapchainManager* getSwapchain() const { return swapchain; }
+    DescriptorManager* getDescriptorLayouts() const { return descriptorLayouts; }
+    SamplerManager* getSamplers() const { return samplers; }
+    const GPUSceneData& getSceneData() const;
+    const DrawContext& getMainDrawContext() const;
+    VkExtent2D getDrawExtent() const { return drawExtent; }
+    AssetManager* getAssets() const { return assets; }
+    // Convenience alias (singular) requested
+    AssetManager* getAsset() const { return assets; }
+    RenderGraph* getRenderGraph() const { return renderGraph; }
+};