osp-slp architectural specification: io · pdf fileenlightenment is the flagship and original...

EFL Overview

Daniel Juyung Seo <[email protected]> Chuneon Park <[email protected]>

Course

• Day 1

Classes Details

1 Introduction

2 EFL Overview

3 EFL Detail

Course

Classes Details

1 Edje

2 Writing Applications

• Day 3

Classes Details

1 Widget, Theme Customization

2 Porting to Tizen

• Day 2

0. Introduction

5 5

0.1 Lecturer

• Daniel Juyung Seo (SeoZ)

• S/W Center, Next Generation

Computing Lab

• [email protected]

• EFL Open Source Committer

• Chuneon Park (Hermet)

• S/W Center, Next Generation

Computing Lab

• [email protected]

• EFL Open Source Committer

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0.2 Attendee

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0.3 Before we dive into Add the numbers and speak loud

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0.3 Before we dive into • No prejudice

• Ask questions during the class

• Ask to assistant during the practice

• Learn a lot!

1. Install E/EFL/Tizen

17 17

1.1 Linux • Ubuntu 12.04

• Best fits with Tizen

18 18

1.2 E/EFL Installation • http://www.enlightenment.org/p.php?p=download&l=en

19 19

1.2 E/EFL Installation – package

• Official package provided by distro

$ sudo apt-get update

$ sudo apt-get install e17 elementary-dev

• Unofficial package provided by Enlightenment team

https://launchpad.net/~efl/+archive/trunk

• Unofficial package provided by Hannes Janetzek

https://launchpad.net/~hannes-janetzek/+archive/enlightenment-svn

20 20

1.2 E/EFL Installation • Git clone and build/install them

http://git.enlightenment.org/devs/seoz/util.git/plain/efl_script_sri.sh

-> http://goo.gl/pPHlJ

$ chmod +x efl_script_sri.sh

$ ./efl_script_sri.sh clone

$ ./efl_script_sri.sh build

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1.3 Launch Enlightenment • $ sudo cp /usr/local/share/xsessions/enlightenment.desktop

/usr/share/xsessions

22 22

1.3 Launch Enlightenment • http://www.enlightenment.org/p.php?p=about/e17&l=en

23 23

1.3 Launch Enlightenment

24 24

1.4 Launch EFL Applications • Main menu

•left mouse click

• Everything Launcher

•Alt + ESC

• Terminal Emulator Terminology

•shelves -> ibar -> Terminology

•$ elementary_test

•$ pkg-config --cflags --libs elementary

25 25

1.5 Tizen SDK Check • Run Tizen IDE

•Everything Launcher -> Tizen IDE

• Run Tizen Emulator Manager

•Everything Launcher -> Emulator Manager

2. EFL Overview

27 27

2.1 What is EFL?

Enlightenment Foundation Libraries

A collection of libraries for Enlightenment

< Block Diagram >

< (unofficial) EFL Logo>

28 28

2.2 What is Enlightenment? • Started as a Window Manager

• Now it’s a project name

• Consists of

•Enlightenmente Desktop/Window Manager

•E16(DR16), E17(DR17), E18(DR18)

•EFL (Enlightenment Foundation Libraries)

• Enlightenment is the flagship and original name bearer for this project. Once it was just a

humble window manager for X11 that wanted to do things differently. To do them better, but it has expanded. This can be confusing so when we refer to Enlightenment, we may mean the project as a whole or just the window manager proper. The libraries behind Enlightenment are referred to as EFL collectively, each with a specific name and purpose.

• from www.enlightenment.org

< Enlightenment Logo >

29 29

2.2 What is Enlightenment?

< Screenshot of Enlightenment Window Manager >

30 30

2.2 What is Enlightenment? • A Window Manager

• ICCCM/NETWM (FDO)

• Virtual Desktops

• Remembering & enforcing user preferences

• Window Frames (titlebars etc.)

• Tiling module even

• Focus (click/pointer/sloppy) handling

• Split desktops per screen

• Focus switching

31 31

2.2 What is Enlightenment? • A Shell

• Launching applications

• Menus

• Wallpaper handling (animated too)

• Network management (connman)

• CPU power policy management

• Keyboard layout management

• Audio mixer front-end (Pulse/ALSA)

• Backlight controls

• Clock

• Temperature monitoring

• Pager

32 32

2.2 What is Enlightenment? • A Shell

• Taskbars

• Launcher bars

• Mouse settings

• Screensaver/blanker/dim settings

• Screen lock

• Systray (please die... please)

• Screenshotting

• Battery status

• Desktop gadgets

• Notifications (FDO/DBUS)

• Custom layout modules (mobile)

• Experimental

• Virtual keyboard

33 33

2.2 What is Enlightenment? • A Filemanager

• Icons on the desktop

• Icon and list modes

• Lots of thumbnails

• Live previews

• Removable storage support (blergh!)

• DND

• Recycled for file selectors as well

34 34

2.2 What is Enlightenment? • A Compositor

• Full software compositing available

• Works decently even on ancient/slow hardware

● Pentiums, Raspberry PI, …

• OpenGL and OpenGL-ES2 too

• Effects via theme styles (Edje)

• Wayland clients supported in X11

• Screen dimming effects

• Optional auto-disable for fullscreen windows

35 35


• Unofficial packages are available for several platforms including:

•Ubuntu

•ArchLinux

•Gentoo

•Slackware

•OpenSUSE

•SLE, Fedora, CentOS, Mandriva

•Debian

•FreeBSD

36 36


• Some Linux distributions are Enlightenment-centric.

• Here is a list:

•Bodhi

•Elive

•HUMANity

•Macpup

•MoonOS

•OpenGEU

•Pentoo

•PCLinuxOS

•Sabayon

•Unite17

•Yellow Dog

37 37

2.2 What is EFL again? • A collection of libraries

•Built by the same team working on Enlightenment

•Built for the purpose of making E17 (Enlightenment 0.17)

•Always focused on staying lean and still providing fanciness

•Almost all development focus sunk into EFL vs E17

•Cover a wide range of functionality due to broad needs

• The heart of the Graphics component of Tizen

• 26% of code for E17 is E17 itself, rest is EFL.

•E17+EFL make up only 50% of code in SVN though

38 38

2.3 History

EFL Imlib2 Imlib/Fnlib

Enlightenment

(0.1 – 0.16.x)

1996 1999 2012 2001

Enlightenment

(0.17)

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2.3 History - Detail

• 1996 – Enlightenment development started.

• 1997 - E1 release

• 1997 – Imaging layer split off into Imlib and Fnlib.

• 1997 – Imlib adds GTK+/GDK support.

• 1999 – Imlib2 combines images, fonts, alpha channels etc.

• 2000 - E16 release

• 2000 - E17 development started?

• 2001 – Evas (using Imlib2 and OpenGL) first appears.

• 2004 - E17 development restarted?

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• And then EFL really began as more libs were added:

•Ecore, Ebits (later replaced by Edje), Edb (deprecated in favor of Eet), Eina, Embryo, Efreet, EDbus, Ethumb, Emotion, Elementary, Epdf, Eeze.

• 2008 – Elementary hit the trunk.

• 2011.01.29 – 1.0 Release of core EFL.

• 2012.03.24 - 1.0/1.2/1.6 Release of EFL

•elementary 1.0

• 2012.08.30 - 1.7 Release of EFL

• 2012.12.21 - E17 Release

• 2013.01.04 - 1.7.5 Stable Release of EFL

• 2013.01.31 - E17.1 Bug fix release, E18 Snapshot(83478)

• 2013.02 - SVN -> GIT Migration

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What the World expected was…

2012.12.21

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E17 was released!

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2.4 Carsten Haitzler • A founder of Enlightenment

• A.K.A Rasterman or Raster

• http://en.wikipedia.org/wiki/Carsten_Haitzler

• http://www.rasterman.com/

< Carsten Haitzler >

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2.5 EFL Libraries – Block Diagram

Application / Library

Bindings

Base Operating System / display etc.

Edje

Elementary

EFL

Efreet Eeze Eio Ethumb EDbus

Embryo

Eina

Eet

Evas

Ecore

Emotion

46 46

2.5 EFL Libraries - EINA

Eina is a library for

data types and some useful tools.

47 47

2.5 EFL Libraries - EVAS

E + canVAS

A highly optimized

canvas/rendering library

48 48

2.5 EFL Libraries - ECORE

Ecore is a clean and tiny

event loop library

with many convenience modules.

(E + Core)

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2.5 EFL Libraries - EDJE

Edje is a complex graphical design & layout library.

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2.5 EFL Libraries - ELEMENTARY

• Fast, Finger friendly, Scalable, Themeable, ...

• 80 widgets

•Containers - Box, Conformant, Grid, Layout, Panes, Scroller, Table, …

•Non-Containers - Bg, Button, Check, Entry, Label, List, Icon, Win, ...

• Widget Inheritance

< Scaled and resized relative to the screen> < Same view but different themes>

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2.5 EFL Libraries - ELEMENTARY

clock

colorselector

entry

frame

flipselector check

diskselector

actionslider

bg

index

map

menu photo, photocam

panel

toolbar

radio

bubble

slider

ctxpopup

notify

separator

segment control

multibuttonentry panes

glview

fileselector

Label

thumb

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2.5 EFL Libraries - EMOTION

• Video/Audio Playback library

• Play a video using external plug-ins such as Gstreamer, Xine, VLC

• Integrated with Evas Object

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2.5 EFL Libraries – EPHYSICS

• Physics simulation integration and visual effects.

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2.5 EFL Libraries – ETC.

● Data codec and storage (Eet)

● Bytecode VM (Embryo)

● Freedesktop.org standards support (Efreet)

● Dbus integration and wrapping (Edbus)

● Asynchronous I/O (Eio)

● Video playback glue (Emotion)

● Udev hardware detection (Eeze)

● Thumbnailer & cacher (Ethumb)

● V8 Javascript base runtime (Elev8)

55 55

2.6 EFL Characteristic • Performance

• Small memory footprint

• Various back-end engine

• GUI, Logic separation

• Themeable

• Scalable

• Animations

• Language bindings

• H/W acceleration

• Flexible

• Too flexible

• Entrance barrier

• No many tutorials

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2.6 EFL Characteristic - Performance

• Why is EFL being used as opposed to GTK+ or Qt or

something else?

•Speed

•Samsung used GTK+, X11 and DirectFB (in combinations) and

once EFL was tried, it soundly beat these hands-down in

performance

•Very fast software rendering (for all occasions)

•Solid Accelerated OpenGL and OpenGL-ES2.0 support for many

years

•60fps+ on common smart phones equaling android with higher

quality

57 57

2.6 EFL Characteristic - Memory

• Why is EFL being used as opposed to GTK+ or Qt or

something else?

•Memory (Ubuntu 11.04) beyond base X11 “failsafe” session

•Unity – 168Mb

•Enlightenment 0.17 – 65Mb

●Numbers based on “free” minus disk cache and buffers –

Base 199Mb

•Both Unity and Enlightenment have roughly similar features and

setup

•Compositor (OpenGL), fullscreen wallpaper, launcher, icons,

filemanager, etc.

58 58

2.6 EFL Characteristic - Memory

• Mobile devices ship with limited memory

•128Mb, 256Mb, maybe 512Mb

• These devices almost never use swap

•Flash has limited writes, so swap can hurt device lifespan

• Lower end devices may not have GPU's

•Require decent software rendering to make up for it

• OpenGL has overhead that may not be worth it for all

situations

•Textures keeps speed, but lose memory & more

59 59

2.6 EFL Characteristic - Backend

• X11 (OpenGL, Xlib & XCB)

• Wayland (OpenGL & SHM)

• Direct Framebuffer

• Memory buffers

• PS3 Native

• Windows (D3D, GDI & DirectDraw)

• ETC

60 60

2.6 EFL Characteristic – GUI/Logic Separation

61 61

2.6 EFL Characteristic – Themeable

•Theme is a preset package containing graphical

appearance details.

62 62

2.6 EFL Characteristic – Scalable

63 63

2.6 EFL Characteristic – Animation

• Animations supported by various layers

•evas

•edje

•elementary

•efx

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2.6 EFL Characteristic - Bindings

• Javascript

• C++

• Python

• Ruby

• Vala

• Perl

• …

65 65

2.6 EFL Characteristic – H/W Accel

• OpenGL, OpenGL-ES

• Uses SIMD vector such as MMX, Neon

66 66

2.6 EFL Characteristic – Flexible

• Many libraries

• Many features

• Runs on various environment.

• Modularized

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2.6 EFL Characteristic – Flexible

• Too flexible

• Too many libraries

• Too many features

• Runs on various environment. -> Test!

• Entrance barrier

• Application developers should consider many things.

• -> Spend much time

• -> Recommend to be consulted by EFL open source or HQ EFL team.

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2.7 EFL Open Source Community • Official Website

http://www.enlightenment.org

Mailing List

http://lists.sourceforge.net/lists/listinfo/enlightenment-devel

http://lists.sourceforge.net/lists/listinfo/enlightenment-announce

http://lists.sourceforge.net/lists/listinfo/enlightenment-users

IRC

irc.freenode.net/6667

#e, #edevelop, #e.kr

GIT

$ git clone http://git.enlightenment.org/core/efl.git

SVN

$ svn checkout http://svn.enlightenment.org/svn/e

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2.7 EFL Open Source Community World-Wide Developers

65 Committers

12 committers are working for Samsung

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2.8 EFL Open Source Contribution • http://phab.enlightenment.org

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2.8 EFL References • Official Website

•http://www.enlightenment.org/

• EFL Korean Group

•http://efl.or.kr

• S-KMS EFL Development Forum

•http://kms.sec.samsung.net/club/efl.club

• Elm Demo Tizen Sample Application

• 마이크로소프트웨어 2012.7 ~ 11

http://www.enlightenment.org/

http://kms.sec.samsung.net/club/efl.club

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2.8 EFL References • http://docs.enlightenment.org

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2.8 EFL References • http://git.enlightenment.org/core/efl.git/tree/src/examples

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2.8 EFL References • elementary_test

• Source

•elementary/src/bin/test*.c

• run

•$ elementary_test

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2.8 EFL References • elementary_config

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2.9 EFL in Tizen

• Graphics and UI consist of the system graphic and UI stacks, which includes the EFL (Enlightenment Foundation Libraries), an X11-based window management system, input methods, and OpenGL® ES*.

• The heart of the Graphics component, the EFL, is a suite of libraries. It is for creating rich graphics with ease, for all UI resolutions. The libraries build UIs in layers, allowing for 3D transformations and more. The EFL includes the Evas canvas API library and the elementary widget library.

Applications

Applications

Application

Framework Graphics & UI Multimedia Web Messaging Location

Security System Base Connectivity Telephony PIM

Kernel

Linux Kernel & device drivers

Core

Thank you.

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