OSP-SLP Architectural Specification: Io

6. EFL 중급기능활용 6.1 Elementary Theme 6.2 3D Visual Effect 6.3 Integrate with OpenGL ES 6.4 Multi-Threaded EFL App

6.1 Elementary Theme - Theme Change - Theme Extension

6.1 Elementary Theme - Theme Change Theme 을통해위젯의 Look & Feel 을결정시스템기반의 Theme 제공추가 Theme 에대한동적 Theme 변경가능 Theme 확장을통한위젯 Customizing 가능 tizen-black elm_widget widget style (look & feel) widget body (functionality) tizen-white widget style (look & feel) Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 4

6.1 Elementary Theme - Theme Change 1. Theme 파일위치 default tizen-hd /usr/local/share/elementary/themes/default.edj /usr/local/share/elementary/themes/tizen-hd.edj 2. 현재 Theme 정보위치 elm_config PROFILE 에따라폴더가다름 ex) default, mobile /usr/local/share/elementary/config/mobile/base.cfg 3. 환경변수 ELM_THEME=theme01:theme02:elementary elementary/config/mobile/base.src 4. Theme 에의해결정되는속성 - Image, Color, Layouting, String, Font - Transition, Programs Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 5

6.1 Elementary Theme - Theme Change 4. 각애플리케이션은 elementary config 파일을 reload 3. X 서버는 root 윈도우의 property 변경에대한이벤트를각애플리케이션에 broadcasting 1. 각 Elementary 애플리케이션은 elm_init() 단계에서 root 윈도우의 property( ELM_CONFIG_mobile ) 에 property 변경에대한 handler 를추가 X server root window property name: ELM_CONFIG_mobile ex) Setting App. 2. 특정애플리케이션에서 Theme 변경후 root 윈도우의 property 를변경 - elm_theme_set() - elm_config_all_flush() Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 6

6.1 Elementary Theme - Theme Extension 특정애플리케이션에서애플리케이션에특화된위젯 Look & Feel 을적용하고자할때위젯 Customizing 을이용 elm_theme_extension_add(null, /usr/apps/org.tizen.app/data/app_theme.edj ); elm_object_style_set(button, new_style ); 애플리케이션에서정의한버튼스타일 app-theme Extension Theme: /usr/apps/org.tizen.app/data/app_theme.edj 기본테마에서제공하는버튼스타일 tizen-hd Basic Themes: /usr/share/elementary/themes/tizen-hd.edj Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 8

6.1 Elementary Theme - Theme Change Elementary 내부적으로리스트를구축하여 Theme 적용순서를정함 Theme 리스트를구축하는방법 시스템기반 Theme (Basic Themes) Elementary Config 에명시된 Theme 이름으로결정 ELM_THEME 환경변수로결정 - ex) ELM_THEME=tizen - ex) ELM_THEME=tizen:tizen2:tizen3 ( 최대 3 개지정가능 ) 애플리케이션기반 Theme Overlay Themes Basic Theme 보다높은순위 elm_theme_overlay_add(); elm_theme_overlay_del(); Extension Themes Basic Theme 보다낮은순위 elm_theme_extension_add(); Custom Themes Overlay 2...... Overlay 1 Pantheon tizen Default Extension 1...... Extension 1 Extension 2 Basic Themes elm_theme_extension_del(); Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 9

6.1 Elementary Theme - Theme Extension Widget Customizing 실습 1. elm_theme_extension_add() 으로 extension theme 파일지정 2. Left Arrow, Right Arrow Button 에 sample 스타일적용 source: kakaotalk/src/main.c Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 11

6.1 Elementary Theme - Theme Extension Widget Customizing 실습 1. 버튼테마파일애플리케이션에복사 (efl/efl/elementary/data/theme/widget/button.edc -> sample/data/edc/theme_ext.edc) 2. theme_ext.edc 를컴파일하도록 Makefile 수정 3. 복사한 button group 의이름변경 (default -> sample) 4. 버튼의배경이미지 invisible 하게변경 source: sample/data/edc/theme_ext.edc Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 12

6.2 3D Visual Effect - Evas Map - Proxy Object - EDC Map - Elm Transition

6.2 3D Visual Effect 원초적구현방법 : Evas_Map 3D Rendering Interface 상대적으로구현이어려우나 flexible 함 스크립트기반구현방법 : EDC map Evas_Map 스크립트 wrapping EDC 내 Part 에이펙트를적용할때적합 빠르고간단한구현방법 : Elm_Transit Predefined Effects Helper Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 14

6.2 3D Visual Effect Evas Map Evas Map - Evas Map을이용하면 Object 단위로원하는비주얼변환이가능 - 하나의 Evas Map은 4 개의정점으로구성 - UV 매핑을이용하여텍스처위치결정 - 정점단위로광원, 색상적용가능 - Rotation, Zoom, 3D Perspective 과같은기능제공 Evas Map 3D Effects Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 15

6.2 3D Visual Effect Evas Map Evas Map Util APIs // 현재오브젝트의위치와크기를 Evas Map 의 Point 와 UV 에적용 void evas_map_util_points_populate_from_object_full (Evas_Map *m, const Evas_Object *obj, Evas_Coord z); void evas_map_util_zoom (Evas_Map *m, double zoomx, double zoomy, Evas_Coord cx, Evas_Coord cy); void evas_map_util_rotate (Evas_Map *m, double degree, Evas_Coord cx, Evas_Coord cy); void evas_map_util_3d_rotate (Evas_Map *m, double dx, double dy, double dz, Evas_Coord cx, Evas_Coord cy, Evas_Coord cz); // 원근효과를주기위한카메라위치및초점설정 //HINT: Scaling = (FOCAL (rate * FOCAL)) * (1 / rate); void evas_map_util_3d_perspective (Evas_Map *m, Evas_Coord px, Evas_Coord py, Evas_Coord z0, Evas_Coord foc); Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 18

6.2 3D Visual Effect Proxy Object Proxy Object 하나의오브젝트를여러위치에출력하고자할때이용 Evas Object Image를이용하여 Proxy 오브젝트구현리소스는원본오브젝트만보유하므로리소스절약이가능 Proxy APIs // 프록시의대상 (Source) 을지정 void evas_object_image_source_set (Evas_Object *proxy, Evas_Object *source); // 소스오브젝트의 visibility 설정 void evas_object_image_visible_set (Evas_Object *proxy, Eina_Bool visible); // 프록시를통해소스오브젝트가이벤트를전달받을지결정 void evas_object_image_source_events_set (Evas_Object *proxy, Eina_Bool source_events); Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 20

6.2 3D Visual Effect EDC Map EDC Map 을이용한 3D 효과구현하기 EDC의특정 Part에이펙트를적용하기위한방법 Evas Map의기능과동일 EDC의 map 인터페이스는좀더제약적임 collections.group.parts.part.description.map.perspective collections.group.parts.part.description.map.light collections.group.parts.part.description.map.rotation.center collections.group.parts.part.description.map.rotation.x collections.group.parts.part.description.map.rotation.y collections.group.parts.part.description.map.rotation.z collections.group.parts.part.description.map.on collections.group.parts.part.description.map.smooth collections.group.parts.part.description.map.perspective.zplane collections.group.parts.part.description.map.perspective.focal Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 22

6.2 3D Visual Effect Elm Transit Elm Transit 미리정의되어있는이펙트타입및사용자정의이펙트를이용하여효과구현 Contain 된오브젝트가아닌, 독립오브젝트에이펙트적용시유용 이펙트구현부가프로그램바이너리에포함되므로 theme changeable 하지않음 상대좌표, 스케일을고려해주어야함 제공하는이펙트타입 Translation Resizing Zoom Flip Resizable Flip Wipe Fade Blend Rotation Image Animation Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 24

6.2 3D Visual Effect Elm Transit Use Case 1. Create Transit (elm_transit_add) 2. Add Objects in Transit (elm_transit_object_add) 2. Add Effects in Transit (elm_transit_effect_add) 3. Set attributes on Transit (elm_transit_del_cb_set) : 이펙트끝날시호출되는사용자콜백함수지정 (elm_transit_repeat_times_set) : 이펙트반복횟수지정 (elm_transit_tween_mode_set) : 가속스타일지정 ( 선형, 가속, 감속, 가속후감속등 ) (elm_transit_event_enabled_set) : 이펙트도중터치입력방지여부설정 (elm_transit_auto_reverse_set) : 효과되감기기능 4. Run Transit (elm_transit_go) Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 25

6.2 3D Visual Effect Elm Transit 하나의 Transit 에여러개의이펙트를복합가능 Rotation Color Translation elm_transit_effect_rotation_add elm_transit_effect_color elm_transit_effect_translation_add Elm_Transit RUN ALL ADDED EFFECTS! * 유사한속성의이펙트는합성될수없음 Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 26

6.3 Integrate with OpenGL ES - Rendering Backened System - Image Object Native Surface - Evas GL - Elm GLView

6.3 Integrate with OpenGL ES Rendering Backened System Rendering on Software Backened Elementary Edje Ecore Ecore X Evas Evas software backend xlib LCD controller X shared Mem. X Server Update window areas Frame buffer 60Hz Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 30

6.3 Integrate with OpenGL ES Rendering Backened System Rendering on GLES Backened Elementary Evas Evas OpenGL ES backend Edje Ecore Ecore X OpenGL ES EGL for X OpenGL ES H/W xlib LCD controller back front Double buffer X Server Update window area Frame buffer /dev/fb1 60Hz Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 31

6.3 Integrate with OpenGL ES Image Native Surface evas_object_image_native_surface_set() Evas_Object_Rect Evas Runtime Hello World! Hello World! Evas_Object_Text GL Rendering Engine X11 Output Evas Engine Module Output Evas_Object_Image SW Rendering Engine Buffer Output X11 Rendering Engine SDL Output OpenGL App (surface_a ie. Pixmap or texture) Evas_Object_Image (img_obj_a) evas_object_image_native_surface_set(img_obj_a, surface_a) Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 32

6.3 Integrate with OpenGL ES Image Native Surface Name: evas_object_image_native_surface_set () Parameters:. Evas_Object *obj. Evas_Native_Surface *surf Description: 이미지오브젝트에서이미지소스로이용할 surface 설정 Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 33

6.3 Integrate with OpenGL ES Evas GL Evas_GL evas_object_image_native_surface_set() 을사용하기가복잡함 Native surface 처리문제 (i.e. X Pixmap) GLX, WGL등의의존성문제 Evas_GL 은 Evas 와 OpenGL 간의 Glue Layer 를제공 Surface 생성 Context 생성 Evas_GL_API 구조체로모든 GLES 2.0 함수들을래핑 GL 의존성은애플리케이션이아닌플랫폼레벨로완화 (Desktop GL vs GLES) 애플리케이션에서는 Evas_GL_API 를이용하여 GL 라이브러리로부터디펜던시해소 Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 34

6.3 Integrate with OpenGL ES Evas GL Evas_GL APIs Evas_GL void *evas_gl_new (Evas *e); evas_gl_free (Evas_GL *evas_gl); Evas_GL_Surface *evas_gl_surface_create (Evas_GL *evas_gl, Evas_GL_Config *cfg, int w, int h); void evas_gl_surface_destroy (Evas_GL *evas_gl, Evas_GL_Surface *surf); Evas_GL_Context *evas_gl_context_create (Evas_GL *evas_gl, Evas_GL_Context *share_ctx); void Eina_Bool evas_gl_context_destroy (Evas_GL *evas_gl, Evas_GL_Context *ctx); evas_gl_make_current (Evas_GL *evas_gl, Evas_GL_Surface *surf, Evas_GL_Context *ctx); Evas_GL_API *evas_gl_api_get (Evas_GL *evas_gl); Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 35

6.3 Integrate with OpenGL ES Evas GL Evas surface 는다음과같은속성들을가짐 Color RGB or RGBA 채널당 8 비트 or 채널당 32 비트 ( 모바일타겟에서는지원안됨 ) Depth 8 ~ 32 bits Stencil 1 ~ 16 bits Evas GL surface format 구조체 사용자가지정한것과실제 Evas 가사용하는포맷은다를수도있음 Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 36

6.3 Integrate with OpenGL ES Evas GL Evas_GL Surface Creation / Deletion 사용자가설정으로 Surface 생성 Evas는 Surface 생성을위해내부적으로 FBO와 Render Buffers를이용 Evas_GL_Surface *evas_gl_surface_create (Evas_GL *evas_gl, Evas_GL_Config *cfg, int w, int h); void evas_gl_surface_destroy (Evas_GL *evas_gl, Evas_GL_Surface *surf); Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 37

6.3 Integrate with OpenGL ES Evas GL Context creation/ deletion Context 리소스는 OpenGL 명세서에따라공유될수있음드라이버구현에의존 Evas_GL_Context *evas_gl_context_create (Evas_GL *evas_gl, Evas_GL_Context *share_ctx); void Eina_Bool evas_gl_context_destroy (Evas_GL *evas_gl, Evas_GL_Context *ctx); evas_gl_make_current (Evas_GL *evas_gl, Evas_GL_Surface *surf, Evas_GL_Context *ctx); Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 38

6.3 Integrate with OpenGL ES Evas GL Evas GL APIs 다른버전의 GL 의존성피하기위한방법 Evas_GL_API *evas_gl_api_get (Evas_GL *evas_gl); #define EVAS_GL_API_VERSION 1 struct _Evas_GL_API { int version; /* version 1: */ void (*glactivetexture) (GLenum texture); void (*glattachshader) (GLuint program, GLuint shader); void (*glbindattriblocation) (GLuint program, GLuint index, const char* name); void (*glbindbuffer) (GLenum target, GLuint buffer); void (*glbindframebuffer) (GLenum target, GLuint framebuffer);... void (*glviewport) (GLint x, GLint y, GLsizei width, GLsizei height); /* Extensions */ void (*glgetprogrambinary) (GLuint program, GLsizei bufsize, GLsizei *length, GLenum *binaryformat, void *binary); } /* future calls will be added down here for expansion */ Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 39

6.3 Integrate with OpenGL ES Evas GL evas_object_image_pixels_get_callback_set() 이미지오브젝트를 update 하기위해 dirty 여부만설정하는방법 pixel get callback 은실제로이미지오브젝트가보일때에만호출됨 GL 렌더링이필요없을때에는호출되지않아불필요한 CPU 사이클을방지 Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 41

6.3 Integrate with OpenGL ES Evas GL 현재 Evas_GL 은 gl_x11 backened 에서만동작 Evas is not MT safe! gl_x11 backend 에서는, Evas 내부적으로 Canvas Composition 을위해 OpenGL 을이용 사용자는 GL 커맨드를사용하기전에매번 evas_gl_make_current() 를호출해주어야함 스레드동기화는사용자의몫 Evas_GL surface format Evas_GL 은내부적으로 FBO 를이용하므로드라이버에따라이용가능한포맷이다를수있음 Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 43

6.3 Integrate with OpenGL ES Elm GLView elm_glview GL 렌더링목적의 Elementary 위젯 Elementary 컨셉의편의성 API를제공 Evas_Object void void Evas_GL_API Eina_Bool Eina_Bool Eina_Bool void void void void void *elm_glview_add(evas_object *parent); elm_glview_size_set(evas_object *obj, Evas_Coord width, Evas_Coord height); elm_glview_size_get(const Evas_Object *obj, Evas_Coord *width, Evas_Coord *height); *elm_glview_gl_api_get(const Evas_Object *obj); elm_glview_mode_set(evas_object *obj, Elm_GLView_Mode mode); elm_glview_scale_policy_set(evas_object *obj, Elm_GLView_Resize_Policy policy); elm_glview_render_policy_set(evas_object *obj, Elm_GLView_Render_Policy policy); elm_glview_init_func_set(evas_object *obj, Elm_GLView_Func func); elm_glview_del_func_set(evas_object *obj, Elm_GLView_Func func); elm_glview_resize_func_set(evas_object *obj, Elm_GLView_Func func); elm_glview_render_func_set(evas_object *obj, Elm_GLView_Func func); elm_glview_changed_set(evas_object *obj); : Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 45

6.3 Integrate with OpenGL ES Elm GLView elm_glview Use Case Typical GLView Flow: Example: Add an ELM_GLView gl = elm_glview_add (win); Set the GLView Mode (Enable Alpha, Depth, Stencil) elm_glview_mode_set (gl, ELM_GLVIEW_ALPHA ELM_GLVIEW_DEPTH); Set the Resize/ Render Policies elm_glview_resize_policy_set (gl, ELM_GLVIEW_RESIZE_POLICY_RECREATE); elm_glview_render_policy_set (gl, ELM_GLVIEW_RENDER_POLICY_ON_DEMAND); Set the GL Drawing Function Callbacks (Init, Del, Resize, Render) elm_glview_init_func_set (gl, _init_gl); elm_glview_del_func_set (gl, _del_gl); elm_glview_resize_func_set (gl, _resize_gl); elm_glview_render_func_set (gl, _draw_gl); Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 46

6.3 Integrate with OpenGL ES Elm GLView 위젯추가함수 Evas_Object *elm_glview_add(evas_object *parent); GLView 크기지정 void elm_glview_size_set(evas_object *obj, Evas_Coord width, Evas_Coord height); void elm_glview_size_get(const Evas_Object *obj, Evas_Coord *width, Evas_Coord *height); GLView Mode- 4 가지지원 ELM_GLVIEW_APLHA ELM_GLVIEW_DEPTH ELM_GLVIEW_STENCIL ELM_GLVIEW_DIRECT Eina_Bool elm_glview_mode_set(evas_object *obj, Elm_GLView_Mode mode); Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 47

6.3 Integrate with OpenGL ES Elm GLView RESIZE POLICY - RESIZE 발생시작동여부를결정 ELM_GLVIEW_RESIZE_POLICY_RECREATE (default) 새로운크기로 surface 재생성 ELM_GLVIEW_RESIZE_POLICY_SCALE 기존 surface 를 scaling 하여출력 Eina_Bool elm_glview_resize_policy_set(evas_object *obj, Elm_GLView_Resize_Policy policy); Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 48

6.3 Integrate with OpenGL ES Elm GLView RENDER_POLICY - 렌더링방식을결정하는방법 ELM_GLVIEW_RENDER_POLICY_ON_DEMAND GLView 가보일때만렌더링수행 (default) ELM_GLVIEW_RENDER_POLICY_ALWAYS 매루프마다무조건렌더링 Eina_Bool elm_glview_render_policy_set(evas_object *obj, Elm_GLView_Render_Policy policy); Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 49

6.3 Integrate with OpenGL ES Elm GLView Init/Del 콜백 init_func : 렌더루프에서한번만호출 del_func : glview 오브젝트가삭제될시호출 void void elm_glview_init_func_set (Evas_Object *obj, Elm_GLView_Func func); elm_glview_del_func_set (Evas_Object *obj, Elm_GLView_Func func); Resize 콜백 보통매트릭스및뷰포트설정을수행 void elm_glview_resize_func_set(evas_object *obj, Elm_GLView_Func func); Render 콜백 void elm_glview_render_func_set(evas_object *obj, Elm_GLView_Func func); Note 모든 GL 커맨드는위콜백에서수행해야함 사용자는 make_current 를하지않아도됨 Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 50

6.4 Multi-Threaded EFL App - Critical Section - Ecore Thread

6.4 Multi-Threaded EFL App Critical Section Ecore_Thread, ecore_pipe_write() 등몇 API 를제외한기본 EFL API 는 Thread Safe 하지않음. 사용자는 EFL Mainloop 와애플리케이션스레드간의동기화 / 상호배제를고려하여애플리케이션을디자인해야함. Object Race Condition! evas_object_move(obj, x, y); evas_object_resize(obj, w, h);... evas_render() { smart_calculate(obj); }... App Thread Main Loop Time Line Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 54

6.4 Multi-Threaded EFL App Ecore Thread Thread Pool Library CPU APP 태스크 태스크스케줄러 태스크리스트 a b c 태스크리스트 d e f 스레드풀 스레드풀 T1 T2 T1 T2 core 1 core 2 태스크리스트 s t u 스레드풀 T3 T3 core 3 태스크리스트 v w x 스레드풀 T4 T4 core 4 T 논리스레드 T 물리스레드 Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 55

6.4 Multi-Threaded EFL App Critical Section Critical Section ecore_thread_main_loop_begin(), ecore_thread_main_loop_end() ecore_main_loop_thread_safe_call_sync() ecore_main_loop_thread_safe_call_async() Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 56

6.4 Multi-Threaded EFL App Critical Section ecore_thread_main_loop_begin(), ecore_thread_main_loop_end() Main Loop 와스레드간 Critical Section 을지정하는방법 Critical Section 내에서는 EAPI 호출가능 ecore_thread_main_loop_begin() 호출시점에는 main loop 내부적으로 thread 동기화작업이수행되므로대기가발생할수있음 가능한최소한의호출로과부하를방지할것 ecore_main_loop_thread_safe_call_sync() 도동일한기능 Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 57

6.4 Multi-Threaded EFL App Critical Section ecore_thread_main_loop_begin/end() 예제 source: advanced_samples/ecore_thread_main_loop.c Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 58

6.4 Multi-Threaded EFL App Critical Section ecore_main_loop_thread_safe_call_sync() 예제 source: advanced_samples/ecore_main_loop_thread_safe_call_sync.c Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 59

6.4 Multi-Threaded EFL App Critical Section ecore_main_loop_thread_safe_call_async() Main Loop 와스레드간 Critical Section 을지정하는방법 Fire and Forgot 방식으로 API 호출시바로 API 반환 ecore_main_loop_thread_safe_call_sync() 호출시점에는 main loop 내부적으로 thread 동기화작업이수행되므로대기가발생할수있으나, async() 는 callback 함수를 queue 에추가후비동기적으로수행되어 Thread 대기를피할수있음 2 void *sync_cb() { } ecore_main_loop_iterate 3 void async_cb() { } 1 void *thread_run() { 1 void *thread_run() { ecore_main_loop_thread_saf e_call_sync(sync_cb, ); ecore_main_loop_thread_saf e_call_async(async_cb, ); 3 usleep(1000); 2 usleep(1000); 대기구간 file descriptor handling } } App Thread(sync) App Thread(async) Time Line Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 61

6.4 Multi-Threaded EFL App Critical Section ecore_main_loop_thread_safe_call_async() 예제 source: advanced_samples/ecore_main_loop_thread_safe_call_async.c Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 62

6.4 Multi-Threaded EFL App Ecore Thread Ecore_Thread - 보다직관적이고단순하고효율적인 thread 처리가가능 ecore_thread_feedback_run(), ecore_thread_run() 을통한 parallel 작업처리 내부적으로 Threading Pool 기반으로작업스레드들을스케줄링하므로스레드과부하등의부담을피할수있으며 scalable 한 processing 특성을지님 ( 기본으로스레드최대개수는 CPU 갯수로제한함 ) ecore 빌드시 thread option 에따라 thread 처리가 parallel 또는 serial 로대처 EFL API 를 parallel 하게호출해야할경우 ecore_thread_feedback_run(), 그렇지않으면 ecore_thread_run() 을이용 Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 63

6.4 Multi-Threaded EFL App Ecore Thread Name: ecore_thread_run () Parameters: Ecore_Thread_Cb Ecore_Thread_Cb Ecore_Thread_Cb const void func_blocking func_end func_cancel *data Return: Ecore_Thread * Description: func_blocking 을수행할 worker thread 를생성. 만약스레드개수가 maximum 일경우에는기존스레드가 available 할때까지 pending 후처리 thread 종료시 func_end or func_cancel 이호출되며이들은 main thread 에의해처리되므로 EFL API 호출가능 Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 64

6.4 Multi-Threaded EFL App Ecore Thread Name: ecore_thread_feedback_run () Parameters: Ecore_Thread_Cb Ecore_Thread_Cb Ecore_Thread_Cb Ecore_Thread_Cb const void Eina_Bool func_heavy func_notify func_end func_cancel *data try_no_queue Return: Ecore_Thread * Description: func_heavy 를수행할 worker thread 를생성. 만약스레드개수가 maximum 일경우에는기존스레드가 available 할때까지 pending 후처리. try_no_queue 에 EINA_TRUE 를전달할시, Maximum 스레드에상관없이스레드에서바로작업이수행됨. EFL API 를 access 하기위해서는 func_notify 콜백에서이를처리 Copyright 2013 Samsung Electronics, Co., Ltd. All rights reserved. 67

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