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Kenji Mouri / 毛利 研二

PROFILE

Kenji Mouri / 毛利 研二

Worked across lvgl/lvgl, levizh/rt-thread, and reactos/reactos repositories to enhance Windows development workflows and cross-platform compatibility. Delivered targeted documentation updates clarifying HWND interoperability and DPI scaling in LVGL, improving onboarding and reducing support needs. Addressed MSVC-specific rendering issues by expanding blend mode bit-fields in C, ensuring stable image rendering in embedded GUI demos. Improved build reliability for Windows-based simulators in levizh/rt-thread by refining Visual Studio project generation and upgrading SDL2 integration using Python scripting and configuration management. Enabled ReactOS adoption of Visual Studio 2026 by updating configuration scripts, streamlining toolchain upgrades and maintaining alignment with evolving Windows development environments.

Overall Statistics

Feature vs Bugs

60%Features

Repository Contributions

5Total
Bugs
2
Commits
5
Features
3
Lines of code
21,885
Activity Months4

Work History

November 2025

1 Commits • 1 Features

Nov 1, 2025

November 2025 monthly summary for reactos/reactos: focused on enabling development with the latest toolchains by adding Visual Studio 2026 support to the configuration script. Key commit: 7cee8479556d058754f20c33a282ecca0f454f68. Also documented MSVC 2026 subsystem handling (allows 5.1/5.2) and noted removal of Windows 8.1-era VCRuntime/STL expectations to align with current environments. No major bugs fixed this month in the tracked scope. Overall impact: reduces upgrade friction, speeds onboarding for developers using VS 2026, and strengthens build configuration maintainability. Technologies demonstrated: MSVC/MSBuild configuration, scripting, version control discipline, and proactive in-repo documentation.

May 2025

2 Commits • 1 Features

May 1, 2025

Month: 2025-05 — levizh/rt-thread. Focused on Windows-based simulator stability and tooling enhancements. Key features delivered and major bugs fixed: 1) Visual Studio simulator project generator stability: added a DEVICE variable to rtconfig.py to ensure correct VS build configuration and resolve issues. Commit: f0609c1b06adb1f3bd0c8054f405614080fb318c (#10251). 2) SDL2 simulator and Visual Studio 2012 project improvements: upgraded SDL2 to version 2.32.6 for the simulator and tidied/extended Visual Studio 2012 project files; fixed formatting issues in SDL2 Windows headers to improve compatibility and access to latest features and fixes. Commit: 74245ed18c996eb3c3abf74b832ab02ef90f91e6 (#10253). Overall impact and accomplishments: improved build reliability for Windows-based simulator, smoother onboarding for developers, and better access to newer SDL2 features. Reduced environment-specific build issues and maintenance overhead for the project files. Technologies/skills demonstrated: Python scripting and build tooling (rtconfig.py), Visual Studio project configuration and maintenance, SDL2 integration, Windows header formatting fixes, cross-version compatibility, and contributor onboarding.

April 2025

1 Commits

Apr 1, 2025

April 2025 — lvgl/lvgl: Focused on reliability and cross-compiler rendering fidelity. Delivered targeted bug fix to support MSVC with expanded blend-mode bit-fields, improving image rendering stability in demos such as lv_demo_smartwatch, and laying groundwork for future blend-mode enhancements. This month emphasized stability, maintainability, and accurate rendering across Windows builds, aligning with product quality goals and reducing customer-reported issues.

November 2024

1 Commits • 1 Features

Nov 1, 2024

November 2024 performance for lvgl/lvgl focused on elevating developer clarity and reducing onboarding and support effort through targeted Windows backend documentation improvements. The update clarifies features and how HWND-based interoperability, window resizing, and DPI scaling affect LVGL display resolution, aligning expectations with actual behavior.

Activity

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Quality Metrics

Correctness88.0%
Maintainability92.0%
Architecture84.0%
Performance84.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

BatchfileCPythonRST

Technical Skills

BSP ConfigurationBuild SystemBuild SystemsC ProgrammingCross-Platform DevelopmentDocumentationEmbedded SystemsGUI DevelopmentIDE ConfigurationWindows developmentconfiguration management

Repositories Contributed To

3 repos

Overview of all repositories you've contributed to across your timeline

lvgl/lvgl

Nov 2024 Apr 2025
2 Months active

Languages Used

RSTC

Technical Skills

DocumentationEmbedded SystemsGUI Development

levizh/rt-thread

May 2025 May 2025
1 Month active

Languages Used

CPython

Technical Skills

BSP ConfigurationBuild SystemBuild SystemsC ProgrammingCross-Platform DevelopmentIDE Configuration

reactos/reactos

Nov 2025 Nov 2025
1 Month active

Languages Used

Batchfile

Technical Skills

Windows developmentconfiguration management