iOS impl

.clang-format

@@ -0,0 +1,92 @@
+---
+AccessModifierOffset: -1
+AlignAfterOpenBracket: AlwaysBreak
+AlignConsecutiveAssignments: false
+AlignConsecutiveDeclarations: false
+AlignEscapedNewlinesLeft: true
+AlignOperands:   false
+AlignTrailingComments: false
+AllowAllParametersOfDeclarationOnNextLine: false
+AllowShortBlocksOnASingleLine: false
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: Empty
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakAfterReturnType: None
+AlwaysBreakBeforeMultilineStrings: true
+AlwaysBreakTemplateDeclarations: true
+BinPackArguments: false
+BinPackParameters: false
+BraceWrapping:
+  AfterClass:      false
+  AfterControlStatement: false
+  AfterEnum:       false
+  AfterFunction:   false
+  AfterNamespace:  false
+  AfterObjCDeclaration: false
+  AfterStruct:     false
+  AfterUnion:      false
+  BeforeCatch:     false
+  BeforeElse:      false
+  IndentBraces:    false
+BreakBeforeBinaryOperators: None
+BreakBeforeBraces: Attach
+BreakBeforeTernaryOperators: true
+BreakConstructorInitializersBeforeComma: false
+BreakAfterJavaFieldAnnotations: false
+BreakStringLiterals: false
+ColumnLimit:       80
+CommentPragmas:  '^ IWYU pragma:'
+ConstructorInitializerAllOnOneLineOrOnePerLine: true
+ConstructorInitializerIndentWidth: 4
+ContinuationIndentWidth: 4
+Cpp11BracedListStyle: true
+DerivePointerAlignment: false
+DisableFormat:   false
+ForEachMacros:   [ FOR_EACH_RANGE, FOR_EACH, ]
+IncludeCategories:
+  - Regex:           '^<.*\.h(pp)?>'
+    Priority:        1
+  - Regex:           '^<.*'
+    Priority:        2
+  - Regex:           '.*'
+    Priority:        3
+IndentCaseLabels: true
+IndentWidth:     2
+IndentWrappedFunctionNames: false
+KeepEmptyLinesAtTheStartOfBlocks: false
+MacroBlockBegin: ''
+MacroBlockEnd:   ''
+MaxEmptyLinesToKeep: 1
+NamespaceIndentation: None
+ObjCBlockIndentWidth: 2
+ObjCSpaceAfterProperty: true
+ObjCSpaceBeforeProtocolList: true
+PenaltyBreakBeforeFirstCallParameter: 1
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+PenaltyBreakFirstLessLess: 120
+PenaltyBreakString: 1000
+PenaltyExcessCharacter: 1000000
+PenaltyReturnTypeOnItsOwnLine: 200
+PointerAlignment: Left
+ReflowComments:  true
+SortIncludes:    true
+SpaceAfterCStyleCast: false
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeParens: ControlStatements
+SpaceInEmptyParentheses: false
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+SpacesInContainerLiterals: true
+SpacesInCStyleCastParentheses: false
+SpacesInParentheses: false
+SpacesInSquareBrackets: false
+Standard:        Cpp11
+TabWidth:        8
+UseTab:          Never
+---
+Language: ObjC
+ColumnLimit:     120
+BreakBeforeBraces: WebKit
+PointerAlignment: Right
+...

example/ios/Podfile.lock

@@ -945,6 +945,8 @@ PODS:
     - glog
     - React-debug
   - react-native-blurhash (1.1.11):
+    - glog
+    - RCT-Folly (= 2022.05.16.00)
     - React-Core
   - React-nativeconfig (0.73.2)
   - React-NativeModulesApple (0.73.2):
@@ -1349,7 +1351,7 @@ SPEC CHECKSUMS:
   React-jsinspector: 03644c063fc3621c9a4e8bf263a8150909129618
   React-logger: 66b168e2b2bee57bd8ce9e69f739d805732a5570
   React-Mapbuffer: 9ee041e1d7be96da6d76a251f92e72b711c651d6
-  react-native-blurhash: a59e6bf8117a0304488ed576abd440f4b0777a8c
+  react-native-blurhash: bb99ded7a87d193bfe05faa28ccbc62b582d8c3d
   React-nativeconfig: d753fbbc8cecc8ae413d615599ac378bbf6999bb
   React-NativeModulesApple: 964f4eeab1b4325e8b6a799cf4444c3fd4eb0a9c
   React-perflogger: 29efe63b7ef5fbaaa50ef6eaa92482f98a24b97e

example/ios/example.xcodeproj/project.pbxproj

@@ -572,13 +572,17 @@
 				);
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
-				OTHER_CFLAGS = "$(inherited)";
+				OTHER_CFLAGS = (
+					"$(inherited)",
+					" ",
+				);
 				OTHER_CPLUSPLUSFLAGS = (
 					"$(OTHER_CFLAGS)",
 					"-DFOLLY_NO_CONFIG",
 					"-DFOLLY_MOBILE=1",
 					"-DFOLLY_USE_LIBCPP=1",
 					"-DFOLLY_CFG_NO_COROUTINES=1",
+					" ",
 				);
 				OTHER_LDFLAGS = (
 					"$(inherited)",
@@ -644,13 +648,17 @@
 					"\"$(inherited)\"",
 				);
 				MTL_ENABLE_DEBUG_INFO = NO;
-				OTHER_CFLAGS = "$(inherited)";
+				OTHER_CFLAGS = (
+					"$(inherited)",
+					" ",
+				);
 				OTHER_CPLUSPLUSFLAGS = (
 					"$(OTHER_CFLAGS)",
 					"-DFOLLY_NO_CONFIG",
 					"-DFOLLY_MOBILE=1",
 					"-DFOLLY_USE_LIBCPP=1",
 					"-DFOLLY_CFG_NO_COROUTINES=1",
+					" ",
 				);
 				OTHER_LDFLAGS = (
 					"$(inherited)",

example/src/App.tsx

@@ -33,7 +33,7 @@ export default function App() {
   const [blurhash, setBlurhash] = useState('LGFFaXYk^6#M@-5c,1J5@[or[Q6.');
   const [decodeAsync, setDecodeAsync] = useState(true);
   const [encodingImageUri, setEncodingImageUri] = useState(
-    'https://blurha.sh/assets/images/img4.jpg',
+    'https://github.com/woltapp/blurhash/blob/master/Website/assets/images/img1.jpg?raw=true',
   );
   const [isEncoding, setIsEncoding] = useState(false);
   //#endregion

ios/BinaryInteger+Encode83.swift

@@ -9,16 +9,16 @@
 import Foundation
 
 extension BinaryInteger {
-	func encode83(length: Int) -> String {
-		var result = ""
-		for i in 1 ... length {
-			let digit = (Int(self) / pow(83, length - i)) % 83
-			result += encodeCharacters[Int(digit)]
-		}
-		return result
-	}
+    func encode83(length: Int) -> String {
+        var result = ""
+        for i in 1 ... length {
+            let digit = (Int(self) / pow(83, length - i)) % 83
+            result += encodeCharacters[Int(digit)]
+        }
+        return result
+    }
 }
 
 private func pow(_ base: Int, _ exponent: Int) -> Int {
-	return (0 ..< exponent).reduce(1) { value, _ in value * base }
+    return (0 ..< exponent).reduce(1) { value, _ in value * base }
 }

ios/BlurhashCache.swift

@@ -9,26 +9,19 @@
 import Foundation
 
 final class BlurhashCache {
-	var blurhash: String?
-	var decodeWidth: Int
-	var decodeHeight: Int
-	var decodePunch: Float
+    var blurhash: String?
+    var decodeWidth: Int
+    var decodeHeight: Int
+    var decodePunch: Float
 
-	init(blurhash: String?, decodeWidth: Int, decodeHeight: Int, decodePunch: Float) {
-		self.blurhash = blurhash
-		self.decodeWidth = decodeWidth
-		self.decodeHeight = decodeHeight
-		self.decodePunch = decodePunch
-	}
+    init(blurhash: String?, decodeWidth: Int, decodeHeight: Int, decodePunch: Float) {
+        self.blurhash = blurhash
+        self.decodeWidth = decodeWidth
+        self.decodeHeight = decodeHeight
+        self.decodePunch = decodePunch
+    }
 
-	init(blurhash: NSString?, decodeWidth: NSNumber, decodeHeight: NSNumber, decodePunch: NSNumber) {
-		self.blurhash = blurhash as String?
-		self.decodeWidth = decodeWidth.intValue
-		self.decodeHeight = decodeHeight.intValue
-		self.decodePunch = decodePunch.floatValue
-	}
-
-	final func isDifferent(blurhash: NSString, decodeWidth: NSNumber, decodeHeight: NSNumber, decodePunch: NSNumber) -> Bool {
-		return self.blurhash != blurhash as String || self.decodeWidth != decodeWidth.intValue || self.decodeHeight != decodeHeight.intValue || self.decodePunch != decodePunch.floatValue
-	}
+    final func isDifferent(blurhash: String, decodeWidth: Int, decodeHeight: Int, decodePunch: Float) -> Bool {
+        return self.blurhash != blurhash || self.decodeWidth != decodeWidth || self.decodeHeight != decodeHeight || self.decodePunch != decodePunch
+    }
 }

ios/BlurhashError.swift

@@ -9,9 +9,9 @@
 import Foundation
 
 enum BlurhashError: Error {
-	case invalidBlurhashString(isNil: Bool)
-	case invalidBlurhashDecodeWidth(actualValue: Int)
-	case invalidBlurhashDecodeHeight(actualValue: Int)
-	case invalidBlurhashDecodePunch(actualValue: Float)
-	case decodeError(message: String?)
+    case invalidBlurhashString(isNil: Bool)
+    case invalidBlurhashDecodeWidth(actualValue: Int)
+    case invalidBlurhashDecodeHeight(actualValue: Int)
+    case invalidBlurhashDecodePunch(actualValue: Float)
+    case decodeError(message: String?)
 }

ios/BlurhashHelper.swift

@@ -11,69 +11,67 @@ import Foundation
 // MARK: Helper funcs
 
 func signPow(_ value: Float, _ exp: Float) -> Float {
-	return copysign(pow(abs(value), exp), value)
+    return copysign(pow(abs(value), exp), value)
 }
 
 func linearTosRGB(_ value: Float) -> Int {
-	let v = max(0, min(1, value))
-	if v <= 0.0031308 { return Int(v * 12.92 * 255 + 0.5) }
-	else { return Int((1.055 * pow(v, 1 / 2.4) - 0.055) * 255 + 0.5) }
+    let v = max(0, min(1, value))
+    if v <= 0.0031308 { return Int(v * 12.92 * 255 + 0.5) }
+    else { return Int((1.055 * pow(v, 1 / 2.4) - 0.055) * 255 + 0.5) }
 }
 
 func sRGBToLinear<Type: BinaryInteger>(_ value: Type) -> Float {
-	let v = Float(Int64(value)) / 255
-	if v <= 0.04045 { return v / 12.92 }
-	else { return pow((v + 0.055) / 1.055, 2.4) }
+    let v = Float(Int64(value)) / 255
+    if v <= 0.04045 { return v / 12.92 }
+    else { return pow((v + 0.055) / 1.055, 2.4) }
 }
 
 // MARK: Encoder
 
-let encodeCharacters: [String] = {
-	"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz#$%*+,-.:;=?@[]^_{|}~".map { String($0) }
-}()
+let encodeCharacters: [String] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz#$%*+,-.:;=?@[]^_{|}~".map { String($0) }
 
 func encodeDC(_ value: (Float, Float, Float)) -> Int {
-	let roundedR = linearTosRGB(value.0)
-	let roundedG = linearTosRGB(value.1)
-	let roundedB = linearTosRGB(value.2)
-	return (roundedR << 16) + (roundedG << 8) + roundedB
+    let roundedR = linearTosRGB(value.0)
+    let roundedG = linearTosRGB(value.1)
+    let roundedB = linearTosRGB(value.2)
+    return (roundedR << 16) + (roundedG << 8) + roundedB
 }
 
 func encodeAC(_ value: (Float, Float, Float), maximumValue: Float) -> Int {
-	let quantR = Int(max(0, min(18, floor(signPow(value.0 / maximumValue, 0.5) * 9 + 9.5))))
-	let quantG = Int(max(0, min(18, floor(signPow(value.1 / maximumValue, 0.5) * 9 + 9.5))))
-	let quantB = Int(max(0, min(18, floor(signPow(value.2 / maximumValue, 0.5) * 9 + 9.5))))
+    let quantR = Int(max(0, min(18, floor(signPow(value.0 / maximumValue, 0.5) * 9 + 9.5))))
+    let quantG = Int(max(0, min(18, floor(signPow(value.1 / maximumValue, 0.5) * 9 + 9.5))))
+    let quantB = Int(max(0, min(18, floor(signPow(value.2 / maximumValue, 0.5) * 9 + 9.5))))
 
-	return quantR * 19 * 19 + quantG * 19 + quantB
+    return quantR * 19 * 19 + quantG * 19 + quantB
 }
 
 // MARK: Decoder
 
 let decodeCharacters: [String: Int] = {
-	var dict: [String: Int] = [:]
-	for (index, character) in encodeCharacters.enumerated() {
-		dict[character] = index
-	}
-	return dict
+    var dict: [String: Int] = [:]
+    for (index, character) in encodeCharacters.enumerated() {
+        dict[character] = index
+    }
+    return dict
 }()
 
 func decodeDC(_ value: Int) -> (Float, Float, Float) {
-	let intR = value >> 16
-	let intG = (value >> 8) & 255
-	let intB = value & 255
-	return (sRGBToLinear(intR), sRGBToLinear(intG), sRGBToLinear(intB))
+    let intR = value >> 16
+    let intG = (value >> 8) & 255
+    let intB = value & 255
+    return (sRGBToLinear(intR), sRGBToLinear(intG), sRGBToLinear(intB))
 }
 
 func decodeAC(_ value: Int, maximumValue: Float) -> (Float, Float, Float) {
-	let quantR = value / (19 * 19)
-	let quantG = (value / 19) % 19
-	let quantB = value % 19
+    let quantR = value / (19 * 19)
+    let quantG = (value / 19) % 19
+    let quantB = value % 19
 
-	let rgb = (
-		signPow((Float(quantR) - 9) / 9, 2) * maximumValue,
-		signPow((Float(quantG) - 9) / 9, 2) * maximumValue,
-		signPow((Float(quantB) - 9) / 9, 2) * maximumValue
-	)
+    let rgb = (
+        signPow((Float(quantR) - 9) / 9, 2) * maximumValue,
+        signPow((Float(quantG) - 9) / 9, 2) * maximumValue,
+        signPow((Float(quantB) - 9) / 9, 2) * maximumValue
+    )
 
-	return rgb
+    return rgb
 }

ios/BlurhashModule.h

@@ -0,0 +1,9 @@
+#import <React/RCTBridgeModule.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface BlurhashModule : NSObject <RCTBridgeModule>
+
+@end
+
+NS_ASSUME_NONNULL_END