May 2022 – Present · 4 yrs 1 mo · Bengaluru, Karnataka, India · On-site

• Project: Graphics and Display Development for Amazon products
• Description:
• Developed a DRM/KMS display driver for a custom embedded SoC, integrating with Wayland/Weston for a seamless GUI experience.
• Integrated Wayland and Weston on a custom DRM driver for an ARM-based SoC.
• Implemented custom user-space applications leveraging EGL & OpenGL ES for rendering UI elements.
• Worked on GEM buffer management, enabling efficient GPU memory allocation in a shared memory environment.
• Designed and optimized a Framebuffer Manager to efficiently handle buffer allocations using GEM/CMA.
• Integrates EGL & OpenGLES user-space libraries with custom applications for GPU-accelerated rendering in custom applications.
• Developed Wayland compositor extensions to support custom rendering and window management features.
• Debugged DRM atomic modesetting, VSync, and page-flipping issues to enhance display performance.
• Optimised memory bandwidth utilization by improving DMA buffer sharing between GPU and display.
• Technical Skills:
• Graphics & Display Systems
• ✔ Direct Rendering Manager (DRM), Kernel Mode Setting (KMS), Framebuffer Manager
• ✔ Graphics Execution Manager (GEM), CMA (Contiguous Memory Allocator)
• ✔ EGL, OpenGLES, GBM (Generic Buffer Management)
• ✔ Wayland, Weston
• ✔ GStreamer
• Kernel & Low-Level Development
• ✔ Linux Kernel Development, Device Drivers, Memory Management
• ✔ Display Pipeline Integration with ARM Mali GPUs
• Programming & Debugging
• ✔ C, C++, Python
• ✔ GDB, Perf, Valgrind, Ftrace, ARM Mali Performance Analyzer
• ✔ Yocto, Buildroot, U-Boot, Device Tree Debugging