shadps4-emu/ext-SDL
Nov 2024 – May 2025
3 Months active
Languages Used
C
Technical Skills
Driver DevelopmentEmbedded SystemsInput HandlingBuild system managementC programmingCode cleanup
Ivan Epifanov
PROFILE
Ivan Epifanov
Worked on the shadps4-emu/ext-SDL and libsdl-org/SDL repositories, focusing on enhancing PS Vita emulation through targeted feature development and bug fixes. Delivered improvements in input handling by expanding Vita mouse support, including X1/X2 buttons and wheel events, and increased audio playback reliability by refining device return logic. Streamlined the build process and maintainability by cleaning up video driver headers and enforced fullscreen video output for a consistent user experience. Addressed memory safety in SDL rendering by invalidating stale texture references. Utilized C and low-level programming skills, with emphasis on embedded systems, driver development, and graphics programming throughout the work.
Overall Statistics
Feature vs Bugs
60%Features
Repository Contributions
5Total
Bugs
2
Commits
5
Features
3
Lines of code
181
Activity Months4
Your Network
302 peopleShared Repositories
302
Work History
July 2026
1 Commits
Jul 1, 2026July 2026: Focused on stability and correctness in SDL rendering for PS Vita texture updates. No new features shipped; one critical bug fix improved memory safety and rendering reliability across PS Vita builds.
1 Commits
Jul 1, 2026July 2026: Focused on stability and correctness in SDL rendering for PS Vita texture updates. No new features shipped; one critical bug fix improved memory safety and rendering reliability across PS Vita builds.
July 2026
May 2025
2 Commits • 1 Features
May 1, 2025Concise monthly summary for 2025-05 focusing on Vita-related SDL extension work in the shadps4-emu/ext-SDL repository. Emphasis on reliability improvements, user experience, and maintainability.
May 2025
2 Commits • 1 Features
May 1, 2025Concise monthly summary for 2025-05 focusing on Vita-related SDL extension work in the shadps4-emu/ext-SDL repository. Emphasis on reliability improvements, user experience, and maintainability.
March 2025
1 Commits • 1 Features
Mar 1, 2025March 2025: Focused on codebase hygiene in the Vita video driver to streamline builds and reduce maintenance overhead for the shadps4-emu/ext-SDL module.
1 Commits • 1 Features
Mar 1, 2025March 2025: Focused on codebase hygiene in the Vita video driver to streamline builds and reduce maintenance overhead for the shadps4-emu/ext-SDL module.
March 2025
November 2024
1 Commits • 1 Features
Nov 1, 2024November 2024 monthly summary focusing on key accomplishments in the shadps4-emu/ext-SDL module. The primary delivery this month was expanding Vita mouse input support to improve emulation accuracy and user experience.
November 2024
1 Commits • 1 Features
Nov 1, 2024November 2024 monthly summary focusing on key accomplishments in the shadps4-emu/ext-SDL module. The primary delivery this month was expanding Vita mouse input support to improve emulation accuracy and user experience.
Activity
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Quality Metrics
Correctness92.0%
Maintainability92.0%
Architecture92.0%
Performance88.0%
AI Usage28.0%
Skills & Technologies
Programming Languages
C
Technical Skills
Audio DevelopmentBuild system managementCC programmingCode cleanupDriver DevelopmentEmbedded SystemsEmbedded systems developmentGraphics ProgrammingInput HandlingLow-level programmingVideo driver development
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline
libsdl-org/SDL
Jul 2026 – Jul 2026
1 Month active
Languages Used
No languages
Technical Skills
CEmbedded SystemsGraphics Programming