StillHammer/GroveEngine
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
72 Commits 1 Branch 0 Tags 4.1 MiB
1b7703f07b
Commit Graph

4 Commits

Author SHA1 Message Date
StillHammer
1b7703f07b feat(IIO)!: BREAKING CHANGE - Callback-based message dispatch 
## Breaking Change

IIO API redesigned from manual pull+if-forest to callback dispatch.
All modules must update their subscribe() calls to pass handlers.

### Before (OLD API)
```cpp
io->subscribe("input:mouse");

void process(...) {
    while (io->hasMessages()) {
        auto msg = io->pullMessage();
        if (msg.topic == "input:mouse") {
            handleMouse(msg);
        } else if (msg.topic == "input:keyboard") {
            handleKeyboard(msg);
        }
    }
}
```

### After (NEW API)
```cpp
io->subscribe("input:mouse", [this](const Message& msg) {
    handleMouse(msg);
});

void process(...) {
    while (io->hasMessages()) {
        io->pullAndDispatch();  // Callbacks invoked automatically
    }
}
```

## Changes

**Core API (include/grove/IIO.h)**
- Added: `using MessageHandler = std::function<void(const Message&)>`
- Changed: `subscribe()` now requires `MessageHandler` callback parameter
- Changed: `subscribeLowFreq()` now requires `MessageHandler` callback
- Removed: `pullMessage()`
- Added: `pullAndDispatch()` - pulls and auto-dispatches to handlers

**Implementation (src/IntraIO.cpp)**
- Store callbacks in `Subscription.handler`
- `pullAndDispatch()` matches topic against ALL subscriptions (not just first)
- Fixed: Regex pattern compilation supports both wildcards (*) and regex (.*)
- Performance: ~1000 msg/s throughput (unchanged from before)

**Files Updated**
- 31 test/module files migrated to callback API (via parallel agents)
- 8 documentation files updated (DEVELOPER_GUIDE, USER_GUIDE, module READMEs)

## Bugs Fixed During Migration

1. **pullAndDispatch() early return bug**: Was only calling FIRST matching handler
   - Fix: Loop through ALL subscriptions, invoke all matching handlers

2. **Regex pattern compilation bug**: Pattern "player:.*" failed to match
   - Fix: Detect ".*" in pattern → use as regex, otherwise escape and convert wildcards

## Testing

✅ test_11_io_system: PASSED (IIO pub/sub, pattern matching, batching)
✅ test_threaded_module_system: 6/6 PASSED
✅ test_threaded_stress: 5/5 PASSED (50 modules, 100x reload, concurrent ops)
✅ test_12_datanode: PASSED
✅ 10 TopicTree scenarios: 10/10 PASSED
✅ benchmark_e2e: ~1000 msg/s throughput

Total: 23+ tests passing

## Performance Impact

No performance regression from callback dispatch:
- IIO throughput: ~1000 msg/s (same as before)
- ThreadedModuleSystem: Speedup ~1.0x (barrier pattern expected)

## Migration Guide

For all modules using IIO:

1. Update subscribe() calls to include handler lambda
2. Replace pullMessage() loops with pullAndDispatch()
3. Move topic-specific logic from if-forest into callbacks

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
 2026-01-19 14:19:27 +07:00
StillHammer
aa3c35bd2f docs: Update all documentation to reflect development stage 
COMPREHENSIVE DOCUMENTATION CLEANUP:

DEVELOPER_GUIDE.md:
- Add prominent warning at top (development-ready, NOT production-ready)
- New 'Current Limitations' section with detailed warnings:
  * Non-deterministic execution
  * Single-threaded only
  * Not suitable for networked games
  * No error recovery, limited optimizations
- Change all 'Production Ready' → 'Development Ready' status tags
- BgfxRenderer: Phase 8 complete | Experimental
- UIModule: Phase 7 complete | Experimental
- InputModule: Phase 1-3 complete | Gamepad Phase 2 TODO
- Add 'What GroveEngine IS Good For' section (prototyping, learning, AI-assisted dev)
- Add Production Roadmap section

USER_GUIDE.md:
- Add experimental/development warning with link to README

Module READMEs:
- BgfxRenderer/README.md: Add development stage warning
- InputModule/README.md: Clarify Phase 1-3 complete, gamepad TODO
- UIModule/README.md: Add experimental warning, clarify thread-safe design is for future

All documentation now consistently reflects that GroveEngine is:
✅ Excellent for rapid prototyping and experimentation
⚠️ NOT ready for production games
⚠️ Non-deterministic execution
⚠️ Single-threaded only (for now)

Total changes: 5 files, 62 insertions, 13 deletions
 2026-01-15 09:26:23 +07:00
StillHammer
a106c78bc8 feat: Retained mode rendering for UIModule 
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>
 2026-01-06 14:06:28 +07:00
StillHammer
0540fbf526 fix: Resolve bgfx Frame 1 crash on Windows DLL + MinGW GCC 15 compatibility 
- Add BGFX_CONFIG_MULTITHREADED=0 to fix TLS crash when bgfx runs from DLL
- Add -include stdint.h for MinGW GCC 15+ compatibility with bgfx third-party code
- Guard SDL2-dependent visual tests with if(SDL2_FOUND)
- Clean up debug logging in BgfxDevice::frame() and BgfxRendererModule::process()
- Re-enable all modules in test_full_stack_interactive.cpp
- Add grove::fs namespace for cross-platform filesystem operations
- Add InputModule C export for feedEvent across DLL boundary

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
 2025-12-30 11:03:06 +07:00