Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
What is CVBuffer/ROPPONGI.swift
Search
Sponsored
·
Your Podcast. Everywhere. Effortlessly.
Share. Educate. Inspire. Entertain. You do you. We'll handle the rest.
→
noppefoxwolf
December 27, 2018
Programming
460
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
High performance GIF playback/iOSDC25
noppefoxwolf
1
650
Spice up your notifications/try!Swift25
noppefoxwolf
3
850
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
1.4k
今から理解するApp Intentエコシステム/WWDC24Recap
noppefoxwolf
0
78
既存アプリをvisionOS対応してリリースした話/visionOS LT vol5
noppefoxwolf
0
230
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
5.7k
google/mediapipe で始めるARアプリ開発/iOSDC2020
noppefoxwolf
1
1.7k
Other Decks in Programming
See All in Programming
ALB ログから Trace を気合で繋げる技術
fohte
7
770
TSX の <Hoge<Fuga>> という構文に驚いた話 / tsx-type-argument-syntax
kanaru0928
0
240
Go 1.27からのGODEBUG / Go 1.27 リリースパーティ #go127party
mazrean
0
250
FastAPI の並行処理モデルを完全に理解する
hoto17296
8
3.1k
レビュー履歴をAIに食わせて、 Compose移行を加速するs
shihochan
0
230
初心者DevRelとして参加者だった私が、DevRel Talks!#2に登壇するまでにしてきたこと
sokohirai
0
160
go-spidermonkeyでAIエージェントのCode Modeを実装する
syumai
3
1.3k
tsc.rip を支える技術 / Kyoto.なんか #8
susisu
0
3.8k
仕様駆動開発の消費期限
watany
20
9.1k
承認済みなのに差戻しできてしまうバグ、型で潰せます
shinchit
0
120
Cloudflare is Agents
chimame
0
180
Flow は今どうなっているか
mizdra
PRO
0
760
Featured
See All Featured
Reality Check: Gamification 10 Years Later
codingconduct
0
2.3k
The World Runs on Bad Software
bkeepers
PRO
72
12k
Save Time (by Creating Custom Rails Generators)
garrettdimon
PRO
32
4.5k
Bridging the Design Gap: How Collaborative Modelling removes blockers to flow between stakeholders and teams @FastFlow conf
baasie
0
670
sira's awesome portfolio website redesign presentation
elsirapls
0
350
Fireside Chat
paigeccino
42
4k
The B2B funnel & how to create a winning content strategy
katarinadahlin
PRO
1
490
What Being in a Rock Band Can Teach Us About Real World SEO
427marketing
0
1.1k
Beyond borders and beyond the search box: How to win the global "messy middle" with AI-driven SEO
davidcarrasco
3
220
BBQ
matthewcrist
89
10k
How to audit for AI Accessibility on your Front & Back End
davetheseo
0
510
Context Engineering - Making Every Token Count
addyosmani
9
1.1k
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