easygraphics

Status: Build & weston is success, but weston-simple-egl is not working Building Weston on Rasberrypi(raspbian) # flashing latest raspbian image in host linuxhttps://www.raspberrypi.org/downloads/raspbian/https://www.raspberrypi.org/documentation/installation/installing-images/linux.md # update & upgrade rasbiansudo apt-get updatesudo apt-get dist-upgrade# wayland-build-tools clone (Made by Bryc..

Building Weston on Ubuntu 16.04 # wayland-build-tools clone (Made by Bryce Harrington)git clone https://github.com/bryceharrington/wayland-build-tools.git # Set build environmentcp wl_defines.sh ~/bin/mkdir ~/buildmkdir ~/build/Wayland # Install wayland build dependencies./wl_install_deps # Fail case: I got build error in mesa package in "wl_build" script so I fixed it like below --with-gallium-..

Raspberrypi kernel githttps://github.com/raspberrypi/linux.gitWayland build tools githttps://github.com/bryceharrington/wayland-build-tools.gitBuilding Weston image with Yocto for Raspberry pihttp://fabienlahouderepro.blogspot.kr/2017/03/building-weston-image-with-yocto-for.html My opinion: Working fine, but wayland is too slow... why... I don't know... AGL for Raspberry Pihttps://wiki.automotiv..

Mesa-Open-source implementation of the OpenGL specification -Implements a vendor-independent translation layer between a graphics API such as OpenGL and the graphics hardware drivers in the operating system kernel

Weston/Wayland IVI Extensions •Well-defined interface•Standardized compositing•Separation of HMI and Layer Management•Dynamically Extensions during runtime •Low integration complexity - Each application create wayland surface- Each wayland surface is mapped to ivi surface for being managed by HMI - HMI manages ivi surface with Layers which group surfaces Component diagram ivi-shell.so: -Implemen..

1. Shared surface(the surface whose ID is set of simple-ivi-share argument) does eglSwapBuffers 2. The ivi-share catchs attach event and get buffer object by using libgbm.3. By using libdrm, ivi-share gets drm_gem_flink. The gem is the drm object which represent the buffer.4. The ivi-share sends drm_gem_flink.name to simple-ivi-share app.5. The simple-ivi-share app calls EglCreateImageKHR() to g..

*아래 내용은 임베디드 리눅스 기반 장치로 한정 합니다) 모바일 기기를 포함한 모든 디스플레이 장치에서 보여지는 한장(한 frame)의 화면은 어플리케이션에 의해 만들어진 LCD패널 크기 만큼의 최종 합성된 메모리 데이터(FHD인경우 대략 8MByte)가 DMA를 통해 LCD패널로 전달 되어 출력된 결과 이다. DRM이 도입 되면서 기존 FBDEV에서 하지 못했던 "그래픽 메모리의 부분적인 갱신(plane update)"이 가능해 졌다. 기존 FBDEV에서는 그래픽메모리의 어느 한 부분이 바뀌면 전체 화면을 다시 그려 그래픽 메모리에 다시 업데이트(full refresh) 해 주어야 했지만 DRM 드라이버에서는 기존 영역은 그대로 놔두고 바뀐 부분만 업데이트 할 수 있다. 그만큼 메모리를 동작을 효율적으..