EFL Overview. Daniel Juyung Seo Chuneon Park

Transcription

1 EFL Overview Daniel Juyung Seo Chuneon Park

2 Course Day 1 Classes Details 1 Introduction 2 EFL Overview 3 EFL Detail

3 Course Day 2 Classes Details 1 Edje 2 Writing Applications Day 3 Classes Details 1 Widget, Theme Customization 2 Porting to Tizen

4 0. Introduction

5 0.1 Lecturer Daniel Juyung Seo (SeoZ) S/W Center, Next Generation Computing Lab EFL Open Source Committer Chuneon Park (Hermet) S/W Center, Next Generation Computing Lab EFL Open Source Committer 5

6 0.2 Attendee 6

7 0.3 Before we dive into Add the numbers and speak loud

8 0.3 Before we dive into Add the numbers and speak loud

9 0.3 Before we dive into Add the numbers and speak loud

10 0.3 Before we dive into Add the numbers and speak loud

11 0.3 Before we dive into Add the numbers and speak loud

12 0.3 Before we dive into Add the numbers and speak loud

13 0.3 Before we dive into Add the numbers and speak loud

14 0.3 Before we dive into Add the numbers and speak loud

15 0.3 Before we dive into No prejudice Ask questions during the class Ask to assistant during the practice Learn a lot! 15

16 1. Install E/EFL/Tizen

17 1.1 Linux Ubuntu Best fits with Tizen 17

18 1.2 E/EFL Installation 18

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 Unofficial package provided by Hannes Janetzek 19

20 1.2 E/EFL Installation Git clone and build/install them -> $ chmod +x efl_script_sri.sh $./efl_script_sri.sh clone $./efl_script_sri.sh build 20

21 1.3 Launch Enlightenment $ sudo cp /usr/local/share/xsessions/enlightenment.desktop /usr/share/xsessions 21

22 1.3 Launch Enlightenment 22

23 1.3 Launch Enlightenment 23

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 24

25 1.5 Tizen SDK Check Run Tizen IDE Everything Launcher -> Tizen IDE Run Tizen Emulator Manager Everything Launcher -> Emulator Manager 25

26 2. EFL Overview

27 2.1 What is EFL? Enlightenment Foundation Libraries A collection of libraries for Enlightenment < (unofficial) EFL Logo> < Block Diagram > 27

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 Logo > 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 28

29 2.2 What is Enlightenment? < Screenshot of Enlightenment Window Manager > 29

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 30

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 31

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 32

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 33

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 34

35 2.2 What is Enlightenment? Unofficial packages are available for several platforms including: Ubuntu ArchLinux Gentoo Slackware OpenSUSE SLE, Fedora, CentOS, Mandriva Debian FreeBSD 35

36 2.2 What is Enlightenment? Some Linux distributions are Enlightenment-centric. Here is a list: Bodhi Elive HUMANity Macpup MoonOS OpenGEU Pentoo PCLinuxOS Sabayon Unite17 Yellow Dog 36

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 37

38 2.3 History Enlightenment (0.17) Enlightenment ( x) Imlib/Fnlib Imlib2 EFL 38

39 2.3 History - Detail 1996 Enlightenment development started E1 release 1997 Imaging layer split off into Imlib and Fnlib Imlib adds GTK+/GDK support Imlib2 combines images, fonts, alpha channels etc E16 release E17 development started? 2001 Evas (using Imlib2 and OpenGL) first appears E17 development restarted? 39

40 2.3 History - Detail 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 Elementary hit the trunk Release of core EFL /1.2/1.6 Release of EFL elementary Release of EFL E17 Release Stable Release of EFL E17.1 Bug fix release, E18 Snapshot(83478) SVN -> GIT Migration 40

41 2.3 History - Detail What the World expected was

42 2.3 History - Detail 42

43 2.3 History - Detail E17 was released! 43

44 2.4 Carsten Haitzler A founder of Enlightenment A.K.A Rasterman or Raster < Carsten Haitzler > 44

45 2.5 EFL Libraries Block Diagram Application / Library EFL Bindings Elementary Edje Efreet Eio Eeze EDbus Ethumb Emotion Ecore Embryo Eet Evas Eina Base Operating System / display etc. 45

46 2.5 EFL Libraries - EINA Eina is a library for data types and some useful tools. 46

47 2.5 EFL Libraries - EVAS E + canvas A highly optimized canvas/rendering library 47

48 2.5 EFL Libraries - ECORE Ecore is a clean and tiny event loop library with many convenience modules. (E + Core) 48

49 2.5 EFL Libraries - EDJE Edje is a complex graphical design & layout library. 49

50 2.5 EFL Libraries - ELEMENTARY Fast, Finger friendly, Scalable, Themeable, 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> 50

51 2.5 EFL Libraries - ELEMENTARY flipselector slider check actionslider clock segment control radio entry notify bg photo, photocam menu frame colorselector index separator bubble diskselector panel map Label thumb fileselector multibuttonentry ctxpopup panes glview toolbar 51

52 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 52

53 2.5 EFL Libraries EPHYSICS Physics simulation integration and visual effects. 53

54 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) 54

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 55

56 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 56

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 Mb 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. 57

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 58

59 2.6 EFL Characteristic - Backend X11 (OpenGL, Xlib & XCB) Wayland (OpenGL & SHM) Direct Framebuffer Memory buffers PS3 Native Windows (D3D, GDI & DirectDraw) ETC 59

60 2.6 EFL Characteristic GUI/Logic Separation 60

61 2.6 EFL Characteristic Themeable Theme is a preset package containing graphical appearance details. 61

62 2.6 EFL Characteristic Scalable 62

63 2.6 EFL Characteristic Animation Animations supported by various layers evas edje elementary efx 63

64 2.6 EFL Characteristic - Bindings Javascript C++ Python Ruby Vala Perl 64

65 2.6 EFL Characteristic H/W Accel OpenGL, OpenGL-ES Uses SIMD vector such as MMX, Neon 65

66 2.6 EFL Characteristic Flexible Many libraries Many features Runs on various environment. Modularized 66

67 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. 67

68 2.7 EFL Open Source Community Official Website Mailing List IRC irc.freenode.net/6667 #e, #edevelop, #e.kr GIT $ git clone SVN $ svn checkout 68

69 2.7 EFL Open Source Community World-Wide Developers 65 Committers 12 committers are working for Samsung 69

70 2.8 EFL Open Source Contribution 70

71 2.8 EFL References Official Website EFL Korean Group S-KMS EFL Development Forum Elm Demo Tizen Sample Application 마이크로소프트웨어 ~ 11 71

72 2.8 EFL References 72

73 2.8 EFL References 73

74 2.8 EFL References elementary_test Source elementary/src/bin/test*.c run $ elementary_test 74

75 2.8 EFL References elementary_config 75

76 2.9 EFL in Tizen Applications Applications Core Application Framework Graphics & UI Multimedia Web Messaging Location Security System Base Connectivity Telephony PIM Kernel Linux Kernel & device drivers 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. 76

77 Thank you.