Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Sign up for free
Menu
Search
Features
All features
Private URLs
Password Protection
Custom URLS
Scheduled publishing
Remove Branding
Restrict embedding
Deck Collections
Notes
Features
All features
Private URLs
Password Protection
Custom URLS
Scheduled publishing
Remove Branding
Restrict embedding
Deck Collections
Notes
Explore
Featured decks
Featured speakers
Programming
Technology
Storyboards
Explore
Featured decks
Featured speakers
Programming
Technology
Storyboards
Pricing
Search
Sign in
Sign up for free
What is CVBuffer/ROPPONGI.swift
Search
noppefoxwolf
December 27, 2018
Programming
470
0
Share
Embed
Copy iframe code
Copy JS code
Copy link
Start on current slide
What is CVBuffer/ROPPONGI.swift
noppefoxwolf
December 27, 2018
More Decks by noppefoxwolf
See All by noppefoxwolf
柔軟性のあるUIで、多くの環境でアプリを活躍させる/iOSDC26
noppefoxwolf
0
1.5k
High performance GIF playback/iOSDC25
noppefoxwolf
1
690
Spice up your notifications/try!Swift25
noppefoxwolf
3
860
iOSの隠されたAPIを解明し、開発効率を向上させる方法/iOSDC24
noppefoxwolf
2
1.5k
今から理解するApp Intentエコシステム/WWDC24Recap
noppefoxwolf
0
84
既存アプリをvisionOS対応してリリースした話/visionOS LT vol5
noppefoxwolf
0
240
UIのブラックボックスを探る/iOSDC23
noppefoxwolf
3
5.2k
CoreGraphicsでドット絵を描こう/iOSDC22
noppefoxwolf
0
3.3k
ランタイムデバッグのススメ/iOSDC21
noppefoxwolf
1
5.8k
Other Decks in Programming
See All in Programming
Kotlinの15年とServer-Side Kotlin
n_takehata
1
100
Unity6 URPによる海底をテーマにしたVJシステムの解説 | Unity Shader 完全に理解した 勉強会
gam0022
0
360
自サークルのIdPからログアウトできるようになるまで
taiseiue
1
130
[Rails World 2026] Durable orchestration on Rails: from continuation to workflow
palkan
1
730
Workers Cache を知る
syumai
0
350
Simple Storage Service(S3) is not simple
iwatsukayura
0
270
動作中のプログラムの中身をリアルタイムに覗く / Realtime Debugger for CSharp with Roslyn
prota
1
1.8k
AIに “答え“を書かせるのを やめてみた
___akari11
0
120
AI が書く Go コードの品質を劇的に向上させる Linter: “declscope”
mpyw
0
490
SalesForceを内製化!? ~ HR事業を支える顧客管理基盤のインフラを大公開 ~
oku053
0
170
Agents on Rails - Rails at Scale 2026
irinanazarova
0
530
Herb in Rails 8.2: Your ERB views, now HTML-aware @ Rails World 2026, Austin, Texas
marcoroth
0
210
Featured
See All Featured
The browser strikes back
jonoalderson
0
1.8k
Joys of Absence: A Defence of Solitary Play
codingconduct
1
550
Beyond borders and beyond the search box: How to win the global "messy middle" with AI-driven SEO
davidcarrasco
3
280
The Success of Rails: Ensuring Growth for the Next 100 Years
eileencodes
47
8.4k
End of SEO as We Know It (SMX Advanced Version)
ipullrank
3
4.4k
SEO in 2025: How to Prepare for the Future of Search
ipullrank
3
3.9k
The Art of Programming - Codeland 2020
erikaheidi
57
14k
Writing Fast Ruby
sferik
630
63k
How to Get Subject Matter Experts Bought In and Actively Contributing to SEO & PR Initiatives.
livdayseo
0
220
Easily Structure & Communicate Ideas using Wireframe
afnizarnur
194
17k
Prompt Engineering for Job Search
mfonobong
0
500
Testing 201, or: Great Expectations
jmmastey
46
8.3k
Transcript
$7#V⒎FSͷ 30110/(*TXJGUୈճձ
OPQQF ! 1PDPDIBJ04ΤϯδχΞ " ͖ͭͶ͔Θ͍͍ # 30110/(*TXJGUॳࢀઓ $ J04%$ͰඳըपΓͷΛ͠·͠ ͨW
ಈըΛѻ͏ػձͷ૿Ճ w ಈը৴ΞϓϦIFWDͷొɺ$PSF7JEFPʹ৮ΕΔػ ձ͕૿͍͑ͯΔ w σʔλϝσΟΞΛѻ͏#V⒎FSܥΫϥεͷར༻ස ૿Ճ w ΈΜͳɺؾ࣋ͪͰ$71JYFM#V⒎FSΛ͍ͬͯ·ͤΜ͔ʁ
#V⒎FSܥΫϥεͷۙگ w ݹ͍ΫϥεͳͷͰɺ΄΅มߋͳ͍ w ͔͠͠ڥมԽɺΫϥΠΞϯτͰͷσίʔυ 0QFO(-&4.FUBMͷσʔλ͠ʹར༻͞ΕΔ
$7#V⒎FS
$7#V⒎FS w $7#V⒎FSͷ$7$PSF7JEFPͷ$7 σʔλόοϑΝΛ৮Βͣʹ؆୯ʹಡΈॻ͖͢Δͨ Ίͷ*'
දతͳ$7#V⒎FSͷੜ w $7*NBHF#V⒎FS w $71JYFM#V⒎FS w $70QFO(-&45FYUVSF
$7#V⒎FS͡Όͳ͍ํ w $.4BNQMF#V⒎FS ͜Εҧ͏ w $.#MPDL#V⒎FS ͜Εҧ͏
ͲΜͳ࣌ʹऔಘͰ͖Δͷ͔ DJ*NBHFQJYFM#V⒎FS@d ͱ͔ MFUJC$.4BNQMF#V⒎FS(FU*NBHF#V⒎FS TC
$7#V⒎FSͷਖ਼ମ w $7*NBHF#V⒎FS public typealias CVImageBuffer = CVBuffer w $71JYFM#V⒎FS
public typealias CVPixelBuffer = CVImageBuffer w $70QFO(-&45FYUVSF public typealias CVOpenGLESTexture = CVImageBuffer
$71JYFM#V⒎FSWT$7*NBHF#V⒎FS w 2UZQFBMJBTͳΜͩ͠ಉ͡Ͱ͠ΐʁ w "ԶʹΘ͔ΒΜ
$71JYFM#V⒎FSWT$7*NBHF#V⒎FS w $71JYFM#VGGFS ϝϞϦͷϐΫηϧόοϑΝʹΞΫηε͢ΔͨΊͷΫϥ ε w $7*NBHF#VGGFS ϝϞϦͷը૾ʹΞΫηε͢ΔͨΊͷΫϥε
ϐΫηϧใΞΫηεͷྫ w ॎԣͷαΠζ w σʔλαΠζ ը૾ΞΫηεͷྫ w Χϥʔεϖʔε
υΩϡϝϯτ $7*NBHF#VGGFS(FU%JTQMBZ4J[F @ "$(4J[FTUSVDUVSFEFpOJOHUIFOPNJOBMEJTQMBZ TJ[FPGUIFCV⒎FS3FUVSOT[FSPTJ[FJGDBMMFE XJUIBOPO$7*NBHF#VGGFS3FGUZQFPS /6--
ݕূ var pb: CVPixelBuffer? = nil CVPixelBufferCreate(kCFAllocatorDefault, 128, 128, kCVPixelFormatType_32BGRA,
nil, &pb) CVImageBufferGetDisplaySize(pb!) // -> (128.0, 128.0)
ಈըΛѻ͏ػձͷ૿Ճ w ಈը৴ΞϓϦIFWDͷొɺ$PSF7JEFPʹ৮ΕΔػ ձ͕૿͍͑ͯΔ w σʔλϝσΟΞΛѻ͏#V⒎FSܥΫϥεͷར༻ස ૿Ճ w ΈΜͳɺؾ࣋ͪͰ$71JYFM#V⒎FSΛ͍ͬͯ·ͤΜ͔ʁ
ؾ࣋ͪͰ͍ͬͯΔ
6**NBHFͱͷҧ͍
6**NBHFͱͷҧ͍ w $7#V⒎FS ΞυϨεΛࢀর͍ͯ͠Δ͚ͩͳͷͰɺϩοΫ͢Δ͕ ίϐʔΩϟογϡ͞Εͳ͍ தؒϨϯμϦϯάউखʹ͞Εͳ͍ ϏσΦͷΑ͏ʹߴʹॲཧ͢Δඞཁ͕͋ΔՕॴʹ࠷ద
ΞυϨεͷϩοΫ $7#V⒎FSͷσʔλόοϑΝʹ$16͔ΒΞΫηε͢Δ ߹ΞυϨεΛϩοΫ͢Δඞཁ͕͋Δ CVPixelBufferLockBaseAddress(pb, .readOnly) defer { CVPixelBufferUnlockBaseAddress(pb, .readOnly) }
$71JYFM#V⒎FSͷதΛදࣔ͢Δ
Ұ൪؆୯ͳํ๏ $71JYFM#V⒎FS$**NBHF6**NBHF CIImage(cvPixelBuffer: CVPixelBuffer) UIImage(ciImage: ciImage)
.FUBMͰදࣔ͢Δ CVMetalTextureCacheܦ༝Ͱ $71JYFM#V⒎FS.5-5FYUVSF .5,7JFXͳͲͰදࣔ
0QFO(-&4Ͱදࣔ͢Δ CVOpenGLESTextureCacheܦ༝Ͱ $71JYFM#V⒎FS0QFO(-&45FYUVSF (-,7JFXͳͲͰදࣔ
$.4BNQMF#V⒎FSͱ
$.4BNQMF#V⒎FSͱ ɾඞͣ͠$71JYFM#V⒎FS͕ೖ͍ͬͯΔͱݶΒͳ͍
ͦ͏ͱࢥ͍ͬͯͨ ɾ$71JYFM#V⒎FS͔Β$.4BNQMF#V⒎FSΛ࡞Δ ɾϢʔεέʔε ɾར