PSP Book Reader changelog

Release v1.9.0: The "Power Save" Update 🔋⚡

This release introduces dynamic power management to significantly extend PSP battery life during reading sessions.

Install

1. Download PSP-BookReader-v1.9.0.zip from the release assets.
2. Copy the included PSP-BookReader folder to PSP/GAME/ on your Memory Stick.
3. Keep the bundled fonts/ directory next to EBOOT.PBP.
4. Launch the app from the PSP Game menu.

🚀 Changes

🔋 Battery Optimization

• Dynamic Frequency Scaling (DFS):
• Automatically downclocks the CPU to 66MHz after 2 seconds of inactivity.
• Scales up to 222MHz for smooth UI interaction.
• Peaks at 333MHz for intensive tasks like library scanning.
• Frame rate throttling: Reduces main loop wake-ups when the device is idle, further saving power.
• Activity Detection: Intelligent input monitoring ensures the device stays at full speed whenever you are interacting with it.

⚡ Optimization & Stability (from v1.8.0)

• Stable I/O: Resolved excessive disk activity caused by high-frequency logging.
• Quiet Logger: Removed frequent flushes and reduced log noise for better performance.

🛠 Improvements

• Responsive Wake-up: Instant transition from power-save to performance mode upon any button press.
• System Longevity: Reduced heat and wear by running the hardware at lower clock speeds when idle.

Release v1.1.0: The "Clean & Polish" Update 🧹✨

This release focuses on significant codebase cleanup, documentation improvements, and build optimization. No functional changes to the reader itself, but the project structure is now much lighter and more professional.

🚀 Changes

🧹 Project Cleanup

• Removed ~4000 lines of unused code: Deleted the libintrafont library which was included but never actually used.
• Optimized Assets: Removed ~13MB of unused font variations. The app now efficiently uses a single Inter-Regular.ttf.
• Root Directory: Cleared clutter files (inter.zip, debug logs, temporary build files).

📖 Documentation

• New README: completely rewrote README.md with:
• Accurate dependency list (SDL2, pugixml, miniz).
• "How We Made This" section detailing technical hacks (custom HTML stripper, texture rotation).
• Clear contribution guidelines.
• Correct build instructions.

🛠 Build System

• Makefile: Removed unused linker flags (-lpspnet, -lpspnet_apctl).
• Note: -lbz2 is retained as a transitive dependency for libfreetype.