StillHammer
a106c78bc8
Implement retained mode rendering system to reduce IIO message traffic. Widgets now register render entries that persist across frames and only publish updates when visual state changes. Core changes: - UIWidget: Add dirty flags and render ID tracking - UIRenderer: Add retained mode API (registerEntry, updateRect, updateText, updateSprite) - SceneCollector: Add persistent sprite/text storage with add/update/remove handlers - IIO protocol: New topics (render:sprite:add/update/remove, render:text:add/update/remove) Widget migrations: - UIPanel, UIButton, UILabel, UICheckbox, UISlider - UIProgressBar, UITextInput, UIImage, UIScrollPanel Documentation: - docs/UI_RENDERING.md: Retained mode architecture - modules/UIModule/README.md: Rendering modes section - docs/DEVELOPER_GUIDE.md: Updated IIO topics Performance: Reduces message traffic by 85-97% for static/mostly-static UIs 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
82 lines
2.9 KiB
C++
82 lines
2.9 KiB
C++
#pragma once
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#include "../Frame/FramePacket.h"
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#include <vector>
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#include <string>
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#include <unordered_map>
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namespace grove {
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class IIO;
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class IDataNode;
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class FrameAllocator;
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// ============================================================================
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// Scene Collector - Gathers render data from IIO messages
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// ============================================================================
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class SceneCollector {
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public:
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SceneCollector() = default;
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// Configure IIO subscriptions (called in setConfiguration)
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// width/height: Window dimensions for default view initialization
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void setup(IIO* io, uint16_t width = 1280, uint16_t height = 720);
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// Collect all IIO messages at frame start (called in process)
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// Pull-based: module controls when to read messages
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void collect(IIO* io, float deltaTime);
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// Generate immutable FramePacket for render passes
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FramePacket finalize(FrameAllocator& allocator);
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// Reset for next frame
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void clear();
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private:
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// Retained mode: persistent sprites/texts (not cleared each frame)
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std::unordered_map<uint32_t, SpriteInstance> m_retainedSprites;
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std::unordered_map<uint32_t, TextCommand> m_retainedTexts;
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std::unordered_map<uint32_t, std::string> m_retainedTextStrings; // Text content for retained texts
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// Ephemeral mode: staging buffers (filled during collect, cleared each frame)
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std::vector<SpriteInstance> m_sprites;
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std::vector<TilemapChunk> m_tilemaps;
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std::vector<std::vector<uint16_t>> m_tilemapTiles; // Owns tile data until finalize
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std::vector<TextCommand> m_texts;
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std::vector<std::string> m_textStrings; // Owns text data until finalize
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std::vector<ParticleInstance> m_particles;
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std::vector<DebugLine> m_debugLines;
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std::vector<DebugRect> m_debugRects;
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// View state
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ViewInfo m_mainView;
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uint32_t m_clearColor = 0x303030FF;
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uint64_t m_frameNumber = 0;
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float m_deltaTime = 0.0f;
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// Message parsing helpers (ephemeral mode - legacy)
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void parseSprite(const IDataNode& data);
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void parseSpriteBatch(const IDataNode& data);
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void parseTilemap(const IDataNode& data);
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void parseText(const IDataNode& data);
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void parseParticle(const IDataNode& data);
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void parseCamera(const IDataNode& data);
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void parseClear(const IDataNode& data);
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void parseDebugLine(const IDataNode& data);
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void parseDebugRect(const IDataNode& data);
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// Message parsing helpers (retained mode - new)
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void parseSpriteAdd(const IDataNode& data);
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void parseSpriteUpdate(const IDataNode& data);
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void parseSpriteRemove(const IDataNode& data);
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void parseTextAdd(const IDataNode& data);
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void parseTextUpdate(const IDataNode& data);
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void parseTextRemove(const IDataNode& data);
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// Initialize default view
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void initDefaultView(uint16_t width, uint16_t height);
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};
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} // namespace grove
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