Y = a * R + b * G + c * B
Cb = (B - Y) / d
Cr = (R - Y) / e
BT.601 | BT.709 | BT.2020 | |
---|---|---|---|
a | 0.299 | 0.2126 | 0.2627 |
b | 0.587 | 0.7152 | 0.6780 |
# Merge Script | |
# http://code.hootsuite.com/an-introduction-to-creating-and-distributing-embedded-frameworks-in-ios/ | |
# 1 | |
# Set bash script to exit immediately if any commands fail. | |
set -e | |
# 2 | |
# Setup some constants for use later on. |
#import <Foundation/Foundation.h> | |
#import <IOKit/IOKitLib.h> | |
#import <IOKit/graphics/IOGraphicsLib.h> | |
// this helped me out a lot <3: https://stackoverflow.com/questions/3239749/programmatically-change-mac-display-brightness | |
int main(int argc, char *argv[]) { | |
io_iterator_t iterator; | |
kern_return_t result = IOServiceGetMatchingServices(kIOMasterPortDefault, IOServiceMatching("IODisplayConnect"), &iterator); | |
#!/bin/sh | |
UNIVERSAL_OUTPUTFOLDER=${BUILD_DIR}/${CONFIGURATION}-universal | |
# make sure the output directory exists | |
mkdir -p "${UNIVERSAL_OUTPUTFOLDER}" | |
# Step 1. Build Device and Simulator versions | |
xcodebuild -target "${PROJECT_NAME}" ONLY_ACTIVE_ARCH=NO -configuration ${CONFIGURATION} -sdk iphoneos BUILD_DIR="${BUILD_DIR}" BUILD_ROOT="${BUILD_ROOT}" clean build | |
xcodebuild -target "${PROJECT_NAME}" -configuration ${CONFIGURATION} -sdk iphonesimulator ONLY_ACTIVE_ARCH=NO BUILD_DIR="${BUILD_DIR}" BUILD_ROOT="${BUILD_ROOT}" clean build |
:: Build client | |
RunUAT BuildCookRun -project="full_path.uproject"^ | |
-noP4 -platform=Win64^ | |
-clientconfig=Development -serverconfig=Development^ | |
-cook -allmaps -build -stage^ | |
-pak -archive -archivedirectory="Output Directory" | |
:: Cook client | |
RunUAT BuildCookRun -project="full_project_path_and_project_name".uproject^ | |
-noP4 -platform=Win64^ |
// Taken from the commercial iOS PDF framework http://pspdfkit.com. | |
// Copyright (c) 2014 Peter Steinberger, PSPDFKit GmbH. All rights reserved. | |
// Licensed under MIT (http://opensource.org/licenses/MIT) | |
// | |
// You should only use this in debug builds. It doesn't use private API, but I wouldn't ship it. | |
// PLEASE DUPE rdar://27192338 (https://openradar.appspot.com/27192338) if you would like to see this in UIKit. | |
#import <objc/runtime.h> | |
#import <objc/message.h> |
Y = a * R + b * G + c * B
Cb = (B - Y) / d
Cr = (R - Y) / e
BT.601 | BT.709 | BT.2020 | |
---|---|---|---|
a | 0.299 | 0.2126 | 0.2627 |
b | 0.587 | 0.7152 | 0.6780 |
L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns
Compress 1K bytes with Zippy ............. 3,000 ns = 3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns = 20 µs
SSD random read ........................ 150,000 ns = 150 µs
Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs
To remove a submodule you need to:
i386 : iPhone Simulator | |
x86_64 : iPhone Simulator | |
arm64 : iPhone Simulator | |
iPhone1,1 : iPhone | |
iPhone1,2 : iPhone 3G | |
iPhone2,1 : iPhone 3GS | |
iPhone3,1 : iPhone 4 | |
iPhone3,2 : iPhone 4 GSM Rev A | |
iPhone3,3 : iPhone 4 CDMA | |
iPhone4,1 : iPhone 4S |