shadps4-emu/shadPS4
Apr 2025 – Feb 2026
6 Months active
Languages Used
C++CMakeUIAssembly
Technical Skills
Game DevelopmentSystem ProgrammingAPI DesignBuffer ManagementC++Debugging
Valdis Bogdāns
PROFILE
Valdis Bogdāns
Valdis Bogdans contributed to the shadps4-emu/shadPS4 project by engineering robust improvements to input handling, emulator stability, and user interface workflows. Over six months, he expanded IME dialog capacity, refactored core input logic, and introduced persistent log filter presets, directly addressing compatibility and usability issues in games like Undertale and Gravity Rush 2. His work involved C++ and Qt, focusing on buffer management, error handling, and cross-platform development. Through targeted debugging and systematic refactoring, Valdis enhanced reliability across multiple titles, reduced input-related bugs, and improved maintainability, demonstrating a deep understanding of low-level programming and emulator system design.
Overall Statistics
Feature vs Bugs
67%Features
Repository Contributions
15Total
Bugs
3
Commits
15
Features
6
Lines of code
2,940
Activity Months6
Your Network
69 peopleWork History
February 2026
1 Commits
Feb 1, 2026February 2026 (Month: 2026-02) focused on stabilizing the Windows path for Gravity Rush 2 in shadPS4 and tightening low-level guest execution threads. Deliverables centered on a targeted crash-stability fix, code refactors to simplify stack management, and strengthening thread lifecycle handling, resulting in a more reliable Windows experience.
1 Commits
Feb 1, 2026February 2026 (Month: 2026-02) focused on stabilizing the Windows path for Gravity Rush 2 in shadPS4 and tightening low-level guest execution threads. Deliverables centered on a targeted crash-stability fix, code refactors to simplify stack management, and strengthening thread lifecycle handling, resulting in a more reliable Windows experience.
February 2026
October 2025
3 Commits • 1 Features
Oct 1, 2025October 2025 monthly summary for shadPS4-emu/shadPS4: Key IME robustness and cross-game compatibility improvements across multiple titles (e.g., Diablo III, Stardew Valley), plus a display fix for GE2 max-length input. The work enhances reliability and user experience, streamlining cross-title gameplay and reducing input-related issues.
October 2025
3 Commits • 1 Features
Oct 1, 2025October 2025 monthly summary for shadPS4-emu/shadPS4: Key IME robustness and cross-game compatibility improvements across multiple titles (e.g., Diablo III, Stardew Valley), plus a display fix for GE2 max-length input. The work enhances reliability and user experience, streamlining cross-title gameplay and reducing input-related issues.
September 2025
2 Commits • 1 Features
Sep 1, 2025September 2025: Incorporated Log Filter Presets Management for shadPS4 (shadps4-emu/shadPS4), delivering a user-facing dialog to create, save, load, and remove log filter presets. Presets are persisted across sessions and accessible from Settings, enabling quick application of predefined log filters and improving repeatability of common log-view configurations. No major bugs fixed this period. Impact: faster, more repeatable log analysis and improved developer experience; aligns with the goal of streamlined troubleshooting. Technologies/skills demonstrated: UI/UX design, settings integration, persistence of user-defined presets, and clear, issue-tracked commits.
2 Commits • 1 Features
Sep 1, 2025September 2025: Incorporated Log Filter Presets Management for shadPS4 (shadps4-emu/shadPS4), delivering a user-facing dialog to create, save, load, and remove log filter presets. Presets are persisted across sessions and accessible from Settings, enabling quick application of predefined log filters and improving repeatability of common log-view configurations. No major bugs fixed this period. Impact: faster, more repeatable log analysis and improved developer experience; aligns with the goal of streamlined troubleshooting. Technologies/skills demonstrated: UI/UX design, settings integration, persistence of user-defined presets, and clear, issue-tracked commits.
September 2025
August 2025
3 Commits • 1 Features
Aug 1, 2025August 2025 focused on stabilizing and hardening IME dialog UX for the shadPS4 project. Delivered a crucial stability fix and extended parameter support with robustness enhancements to ensure reliable IME behavior across games and scenarios. Improved logging, validation, and user-ID handling to reduce edge-case failures and improve maintainability.
August 2025
3 Commits • 1 Features
Aug 1, 2025August 2025 focused on stabilizing and hardening IME dialog UX for the shadPS4 project. Delivered a crucial stability fix and extended parameter support with robustness enhancements to ensure reliable IME behavior across games and scenarios. Improved logging, validation, and user-ID handling to reduce edge-case failures and improve maintainability.
July 2025
5 Commits • 2 Features
Jul 1, 2025July 2025 monthly summary for shadPS4 emulator focusing on IME improvements and cross-compatibility. Key features delivered include IME Core Stability and Compatibility Improvements and Extended IME Parameters Support and Input Handling, with major bug fixes to keyboard close logic, log spam, and input buffer handling. Overall impact: more reliable and compatible input, reduced debugging noise, and a solid foundation for cross-platform IME support. Technologies demonstrated include C++ refactoring, robust error handling, structured logging, and cross-module integration (ImeHandler/ImeState/ImeUi) with USB keyboard simulation.
5 Commits • 2 Features
Jul 1, 2025July 2025 monthly summary for shadPS4 emulator focusing on IME improvements and cross-compatibility. Key features delivered include IME Core Stability and Compatibility Improvements and Extended IME Parameters Support and Input Handling, with major bug fixes to keyboard close logic, log spam, and input buffer handling. Overall impact: more reliable and compatible input, reduced debugging noise, and a solid foundation for cross-platform IME support. Technologies demonstrated include C++ refactoring, robust error handling, structured logging, and cross-module integration (ImeHandler/ImeState/ImeUi) with USB keyboard simulation.
July 2025
April 2025
1 Commits • 1 Features
Apr 1, 2025April 2025: Key feature delivered in the shadPS4 emulator by expanding the IME dialog input length to 2048 characters, addressing truncation and compatibility issues observed in longer inputs (notably in Undertale). Implemented via updates to the ime_dialog.h header. Commit: 254375ef0c2807f7c7a68ecfa3bb87fe82cbab1c. Result: improved game compatibility, reduced input-related bug reports, and a more seamless user experience across text-heavy titles.
April 2025
1 Commits • 1 Features
Apr 1, 2025April 2025: Key feature delivered in the shadPS4 emulator by expanding the IME dialog input length to 2048 characters, addressing truncation and compatibility issues observed in longer inputs (notably in Undertale). Implemented via updates to the ime_dialog.h header. Commit: 254375ef0c2807f7c7a68ecfa3bb87fe82cbab1c. Result: improved game compatibility, reduced input-related bug reports, and a more seamless user experience across text-heavy titles.
Activity
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Quality Metrics
Correctness84.6%
Maintainability81.4%
Architecture76.0%
Performance71.4%
AI Usage22.6%
Skills & Technologies
Programming Languages
AssemblyC++CMakeUI
Technical Skills
API DesignBuffer ManagementC++C++ DevelopmentCross-platform DevelopmentDebuggingEmulationEmulator DevelopmentError HandlingGame DevelopmentInput HandlingInput Method Editor (IME) ImplementationLibrary DevelopmentLoggingLow-level Programming
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