renaming dir

engine/src/renderer/scene_renderer.hpp

@@ -0,0 +1,56 @@
+#pragma once
+
+#include <sophia/scene_registry.hpp>
+#include <sophia/scene_view.hpp>
+#include <vector>
+
+#include "renderer/sprite_render_system.hpp"
+#include "resources/resource_registry.hpp"
+
+namespace sophia {
+
+/**
+ * !TEMP to be decoupled once scene batching and rendering impl
+ *
+ * Turns a scene's components into draw calls for a SceneView.
+ */
+class SceneRenderer {
+ public:
+  SceneRenderer(const SceneRenderer&) = delete;
+  SceneRenderer& operator=(const SceneRenderer&) = delete;
+
+  SceneRenderer(const SceneRegistry& sceneRegistry, ResourceRegistry& resources,
+                Device& device, vk::Format colorFormat);
+
+  // Call once per frame, before any render().
+  void beginFrame(u32 frameIndex);
+
+  // Records `sceneView` as seen through `camera` (an entity of the view's
+  // scene with a CameraComponent) into `commandBuffer`. Rendering into the
+  // view's target must already have begun.
+  void render(vk::CommandBuffer commandBuffer, const SceneView& sceneView,
+              Entity camera);
+
+ private:
+  struct SpriteDrawItem {
+    s32 sortOrder;
+    float depth;
+    TextureHandle texture;
+    SpriteRenderSystem::Instance instance;
+  };
+
+  void renderSprites(vk::CommandBuffer commandBuffer, const Scene& scene,
+                     const glm::mat4& viewProjection);
+
+  const SceneRegistry& sceneRegistry;
+  ResourceRegistry& resources;
+
+  SpriteRenderSystem spriteRenderSystem;
+
+  // Reused across frames to avoid reallocating.
+  std::vector<SpriteDrawItem> spriteDrawItems;
+  std::vector<SpriteRenderSystem::Instance> spriteInstances;
+  std::vector<SpriteRenderSystem::Batch> spriteBatches;
+};
+
+}  // namespace sophia