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
noppefoxwolf
December 27, 2018
Programming
0
380
What is CVBuffer/ROPPONGI.swift
noppefoxwolf
December 27, 2018
Tweet
Share
More Decks by noppefoxwolf
See All by noppefoxwolf
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
520
既存アプリをvisionOS対応してリリースした話/visionOS LT vol5
noppefoxwolf
0
180
UIのブラックボックスを探る/iOSDC23
noppefoxwolf
3
4k
CoreGraphicsでドット絵を描こう/iOSDC22
noppefoxwolf
0
2.3k
ランタイムデバッグのススメ/iOSDC21
noppefoxwolf
1
4.4k
google/mediapipe で始めるARアプリ開発/iOSDC2020
noppefoxwolf
1
1.4k
モバイルファーストなアプリを作るためにvearがしたこと/xRDCC
noppefoxwolf
0
110
ソーシャルライブサービスにおけるデジタル化粧の仕組みと実装/iOSDC19
noppefoxwolf
4
5.4k
Limited import clarification and its effect/tryswift2019
noppefoxwolf
2
1.2k
Other Decks in Programming
See All in Programming
昭和の職場からアジャイルの世界へ
kumagoro95
1
380
Ruby on cygwin 2025-02
fd0
0
150
Domain-Driven Transformation
hschwentner
2
1.9k
Amazon Bedrock Multi Agentsを試してきた
tm2
1
290
Amazon S3 TablesとAmazon S3 Metadataを触ってみた / 20250201-jawsug-tochigi-s3tables-s3metadata
kasacchiful
0
170
責務と認知負荷を整える! 抽象レベルを意識した関心の分離
yahiru
3
530
負債になりにくいCSSをデザイナとつくるには?
fsubal
10
2.4k
『GO』アプリ バックエンドサーバのコスト削減
mot_techtalk
0
140
密集、ドキュメントのコロケーション with AWS Lambda
satoshi256kbyte
0
190
『GO』アプリ データ基盤のログ収集システムコスト削減
mot_techtalk
0
120
DROBEの生成AI活用事例 with AWS
ippey
0
130
Multi Step Form, Decentralized Autonomous Organization
pumpkiinbell
1
750
Featured
See All Featured
Git: the NoSQL Database
bkeepers
PRO
427
64k
Cheating the UX When There Is Nothing More to Optimize - PixelPioneers
stephaniewalter
280
13k
CoffeeScript is Beautiful & I Never Want to Write Plain JavaScript Again
sstephenson
160
15k
Music & Morning Musume
bryan
46
6.3k
Rebuilding a faster, lazier Slack
samanthasiow
80
8.8k
Fashionably flexible responsive web design (full day workshop)
malarkey
406
66k
Refactoring Trust on Your Teams (GOTO; Chicago 2020)
rmw
33
2.8k
Scaling GitHub
holman
459
140k
Six Lessons from altMBA
skipperchong
27
3.6k
"I'm Feeling Lucky" - Building Great Search Experiences for Today's Users (#IAC19)
danielanewman
226
22k
10 Git Anti Patterns You Should be Aware of
lemiorhan
PRO
656
59k
Gamification - CAS2011
davidbonilla
80
5.1k
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