added proper effort and distance

JxlCoder.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
     s.name             = 'JxlCoder'
-    s.version          = '1.0.12'
+    s.version          = '1.1.0'
     s.summary          = 'JXL coder for iOS and MacOS'
     s.description      = 'Provides support for JXL files in iOS and MacOS'
     s.homepage         = 'https://github.com/awxkee/jxl-coder-swift'

Sources/JxlCoder/JXLCoder.swift

@@ -58,21 +58,19 @@ public class JXLCoder {
     }
 
     /***
-     - Parameter compressionDistance: Sets the distance level for lossy compression: target max butteraugli
-     * distance, lower = higher quality. Range: 0 .. 15.
-     * 0.0 = mathematically lossless (however, use JxlEncoderSetFrameLossless
-     * instead to use true lossless, as setting distance to 0 alone is not the only
-     * requirement). 1.0 = visually lossless. Recommended range: 0.5 .. 3.0. Default
-     * value: 1.0.
+     - Parameter quality: 0...100
+     - Parameter effort: 1...9
      - Returns: JXL data of the image
      **/
     public static func encode(image: JXLPlatformImage,
                               colorSpace: JXLColorSpace = .rgb,
                               compressionOption: JXLCompressionOption = .lossy,
-                              compressionDistance: Float = 1.0) throws -> Data {
+                              effort: Int = 7,
+                              quality: Int = 100) throws -> Data {
         return try shared.encode(image, colorSpace: colorSpace,
                                  compressionOption: compressionOption,
-                                 compressionDistance: Double(compressionDistance))
+                                 effort: Int32(effort),
+                                 quality: Int32(quality))
     }
 
     /***

Sources/jxlc/JxlInternalCoder.h

@@ -43,9 +43,10 @@ typedef NS_ENUM(NSInteger, JXLCompressionOption) {
 - (nullable JXLSystemImage *)decode:(nonnull NSInputStream *)inputStream sampleSize:(CGSize)sampleSize error:(NSError *_Nullable * _Nullable)error;
 - (CGSize)getSize:(nonnull NSInputStream *)inputStream  error:(NSError *_Nullable * _Nullable)error;
 - (nullable NSData *)encode:(nonnull JXLSystemImage *)platformImage
-                 colorSpace:(JXLColorSpace)colorSpace
-          compressionOption:(JXLCompressionOption)compressionOption
-        compressionDistance:(double)compressionDistance error:(NSError * _Nullable *_Nullable)error;
+                     colorSpace:(JXLColorSpace)colorSpace
+                     compressionOption:(JXLCompressionOption)compressionOption
+                     effort:(int)effort
+                     quality:(int)quality error:(NSError * _Nullable *_Nullable)error;
 @end
 
 #endif /* JXLCoder_h */

Sources/jxlc/JxlInternalCoder.mm

@@ -50,15 +50,20 @@ static inline float JXLGetDistance(const int quality)
     return(6.24f+(float) pow(2.5f,(30.0-(float)quality)/5.0)/6.25f);
 }
 
-
 @implementation JxlInternalCoder
 - (nullable NSData *)encode:(nonnull JXLSystemImage *)platformImage
-                 colorSpace:(JXLColorSpace)colorSpace
-          compressionOption:(JXLCompressionOption)compressionOption
-        compressionDistance:(double)compressionDistance error:(NSError * _Nullable *_Nullable)error {
+                    colorSpace:(JXLColorSpace)colorSpace
+                    compressionOption:(JXLCompressionOption)compressionOption
+                    effort:(int)effort
+                    quality:(int)quality error:(NSError * _Nullable *_Nullable)error {
+
+    if (quality < 0 || quality > 100) {
+        *error = [[NSError alloc] initWithDomain:@"JXLCoder" code:500 userInfo:@{ NSLocalizedDescriptionKey: @"Quality must be clamped in 0...100" }];
+        return nil;
+    }
 
-    if (compressionDistance < 0 || compressionDistance > 15) {
-        *error = [[NSError alloc] initWithDomain:@"JXLCoder" code:500 userInfo:@{ NSLocalizedDescriptionKey: @"Compression distance must be clamped in 0...15" }];
+    if (effort < 1 || effort > 9) {
+        *error = [[NSError alloc] initWithDomain:@"JXLCoder" code:500 userInfo:@{ NSLocalizedDescriptionKey: @"Effort must be clamped in 1...9" }];
         return nil;
     }
 
@@ -73,10 +78,10 @@ - (nullable NSData *)encode:(nonnull JXLSystemImage *)platformImage
         *error = [[NSError alloc] initWithDomain:@"JXLCoder" code:500 userInfo:@{ NSLocalizedDescriptionKey: @"Can' create preview of image" }];
         return nil;
     }
-
+    
     JxlPixelType jColorspace;
     JxlCompressionOption jCompressionOption;
-
+    
     switch (colorSpace) {
         case kRGB:
             jColorspace = rgb;
@@ -85,7 +90,7 @@ - (nullable NSData *)encode:(nonnull JXLSystemImage *)platformImage
             jColorspace = rgba;
             break;
     }
-
+    
     switch (compressionOption) {
         case kLoseless:
             jCompressionOption = loseless;
@@ -97,7 +102,7 @@ - (nullable NSData *)encode:(nonnull JXLSystemImage *)platformImage
     std::vector<uint8_t> pixels;
     pixels.insert(pixels.end(), (uint8_t*)rgbaData, rgbaData + bufferSize);
     free(rgbaData);
-
+    
     if (jColorspace == rgb) {
         auto resizedVector = [RgbRgbaConverter convertRGBAtoRGB:pixels width:width height:height];
         if (resizedVector.size() == 1) {
@@ -106,23 +111,23 @@ - (nullable NSData *)encode:(nonnull JXLSystemImage *)platformImage
         }
         pixels = resizedVector;
     }
-
+    
     JXLDataWrapper<uint8_t>* wrapper = new JXLDataWrapper<uint8_t>();
-    auto encoded = EncodeJxlOneshot(pixels, width, height, &wrapper->data, jColorspace, jCompressionOption, compressionDistance);
+    auto encoded = EncodeJxlOneshot(pixels, width, height, &wrapper->data, jColorspace, jCompressionOption, JXLGetDistance(quality), effort);
     if (!encoded) {
         delete wrapper;
         *error = [[NSError alloc] initWithDomain:@"JXLCoder" code:500 userInfo:@{ NSLocalizedDescriptionKey: @"Cannot encode JXL image" }];
         return nil;
     }
-
+    
     pixels.resize(1);
-
+    
     auto data = [[NSData alloc] initWithBytesNoCopy:wrapper->data.data()
                                              length:wrapper->data.size()
                                         deallocator:^(void * _Nonnull bytes, NSUInteger length) {
         delete wrapper;
     }];
-
+    
     return data;
 }
 
@@ -133,7 +138,7 @@ - (CGSize)getSize:(nonnull NSInputStream *)inputStream  error:(NSError *_Nullabl
     std::vector<uint8_t> imageData;
     [inputStream open];
     if ([inputStream streamStatus] == NSStreamStatusOpen) {
-
+        
         while ([inputStream hasBytesAvailable]) {
             NSInteger bytes_read = [inputStream read:buffer.data() maxLength:buffer_length];
             if (bytes_read > 0) {
@@ -154,19 +159,19 @@ - (CGSize)getSize:(nonnull NSInputStream *)inputStream  error:(NSError *_Nullabl
                 break;
             }
         }
-
+        
         [inputStream close];
     } else {
         *error = [[NSError alloc] initWithDomain:@"JXLCoder" code:500 userInfo:@{ NSLocalizedDescriptionKey: @"Cannot open input stream" }];
         return CGSizeZero;
     }
-
+    
     size_t width, height;
     if (!DecodeBasicInfo(imageData.data(), imageData.size(), &width, &height)) {
         *error = [[NSError alloc] initWithDomain:@"JXLCoder" code:500 userInfo:@{ NSLocalizedDescriptionKey: @"Cannot decode image info" }];
         return CGSizeZero;
     }
-
+    
     return CGSizeMake(width, height);
 }
 
@@ -179,7 +184,7 @@ - (nullable JXLSystemImage *)decode:(nonnull NSInputStream *)inputStream
     std::vector<uint8_t> imageData;
     [inputStream open];
     if ([inputStream streamStatus] == NSStreamStatusOpen) {
-
+        
         while ([inputStream hasBytesAvailable]) {
             NSInteger bytes_read = [inputStream read:buffer.data() maxLength:buffer_length];
             if (bytes_read > 0) {
@@ -200,15 +205,15 @@ - (nullable JXLSystemImage *)decode:(nonnull NSInputStream *)inputStream
                 break;
             }
         }
-
+        
         [inputStream close];
-
+        
         // Now you have the contents in the 'buffer' vector
     } else {
         *error = [[NSError alloc] initWithDomain:@"JXLCoder" code:500 userInfo:@{ NSLocalizedDescriptionKey: @"Cannot open input stream" }];
         return nil;
     }
-
+    
     std::vector<uint8_t> iccProfile;
     size_t xSize, ySize;
     bool useFloats;
@@ -223,15 +228,15 @@ - (nullable JXLSystemImage *)decode:(nonnull NSInputStream *)inputStream
         *error = [[NSError alloc] initWithDomain:@"JXLCoder" code:500 userInfo:@{ NSLocalizedDescriptionKey: @"Failed to decode JXL image" }];
         return nil;
     }
-
+    
     if (jxlExposedOrientation == Rotate90CW || jxlExposedOrientation == Rotate90CCW 
         || jxlExposedOrientation == AntiTranspose
         || jxlExposedOrientation == OrientTranspose) {
         size_t xz = xSize;
         xSize = ySize;
         ySize = xz;
     }
-
+    
     if (sampleSize.width > 0 && sampleSize.height > 0) {
         auto scaleResult = [RgbaScaler scaleData:outputData width:(int)xSize height:(int)ySize
                                         newWidth:(int)sampleSize.width newHeight:(int)sampleSize.height
@@ -243,7 +248,7 @@ - (nullable JXLSystemImage *)decode:(nonnull NSInputStream *)inputStream
         xSize = sampleSize.width;
         ySize = sampleSize.height;
     }
-
+    
     CGColorSpaceRef colorSpace;
     if (iccProfile.size() > 0) {
         CFDataRef iccData = CFDataCreate(kCFAllocatorDefault, iccProfile.data(), iccProfile.size());
@@ -252,13 +257,13 @@ - (nullable JXLSystemImage *)decode:(nonnull NSInputStream *)inputStream
     } else {
         colorSpace = CGColorSpaceCreateDeviceRGB();
     }
-
+    
     if (!colorSpace) {
         colorSpace = CGColorSpaceCreateDeviceRGB();
     }
-
+    
     int stride = components*(int)xSize * (int)(useFloats ? sizeof(uint16_t) : sizeof(uint8_t));
-
+    
     int flags;
     if (useFloats) {
         flags = (int)kCGBitmapByteOrder16Host | (int)kCGBitmapFloatComponents;
@@ -275,10 +280,10 @@ - (nullable JXLSystemImage *)decode:(nonnull NSInputStream *)inputStream
             flags |= (int)kCGImageAlphaNone;
         }
     }
-
+    
     auto dataWrapper = new JXLDataWrapper<uint8_t>();
     dataWrapper->data = outputData;
-
+    
     CGDataProviderRef provider = CGDataProviderCreateWithData(dataWrapper,
                                                               dataWrapper->data.data(),
                                                               dataWrapper->data.size(),
@@ -290,10 +295,10 @@ - (nullable JXLSystemImage *)decode:(nonnull NSInputStream *)inputStream
                                         userInfo:@{ NSLocalizedDescriptionKey: @"CoreGraphics cannot allocate required provider" }];
         return NULL;
     }
-
+    
     int bitsPerComponent = (useFloats ? sizeof(uint16_t) : sizeof(uint8_t)) * 8;
     int bitsPerPixel = bitsPerComponent*components;
-
+    
     CGImageRef imageRef = CGImageCreate(xSize, ySize, bitsPerComponent,
                                         bitsPerPixel,
                                         stride,
@@ -310,7 +315,7 @@ - (nullable JXLSystemImage *)decode:(nonnull NSInputStream *)inputStream
 #else
     image = [UIImage imageWithCGImage:imageRef scale:1 orientation:UIImageOrientationUp];
 #endif
-
+    
     return image;
 }
 @end

Sources/jxlc/JxlWorker.cpp

@@ -217,7 +217,7 @@ bool DecodeBasicInfo(const uint8_t *jxl, size_t size, size_t *xsize, size_t *ysi
 bool EncodeJxlOneshot(const std::vector<uint8_t> &pixels, const uint32_t xsize,
                       const uint32_t ysize, std::vector<uint8_t> *compressed,
                       JxlPixelType colorspace, JxlCompressionOption compression_option,
-                      float compression_distance) {
+                      float compression_distance, int effort) {
     auto enc = JxlEncoderMake(/*memory_manager=*/nullptr);
     auto runner = JxlThreadParallelRunnerMake(
             /*memory_manager=*/nullptr,
@@ -279,22 +279,27 @@ bool EncodeJxlOneshot(const std::vector<uint8_t> &pixels, const uint32_t xsize,
         return false;
     }
 
-    JxlEncoderFrameSettings *frame_settings =
+    JxlEncoderFrameSettings *frameSettings =
             JxlEncoderFrameSettingsCreate(enc.get(), nullptr);
 
     if (JXL_ENC_SUCCESS !=
-        JxlEncoderAddImageFrame(frame_settings, &pixel_format,
+        JxlEncoderAddImageFrame(frameSettings, &pixel_format,
                                 (void *) pixels.data(),
                                 sizeof(uint8_t) * pixels.size())) {
         return false;
     }
 
     if (compression_option == loseless &&
-        JXL_ENC_SUCCESS != JxlEncoderSetFrameDistance(frame_settings, JXL_TRUE)) {
+        JXL_ENC_SUCCESS != JxlEncoderSetFrameDistance(frameSettings, JXL_TRUE)) {
         return false;
     } else if (compression_option == loosy &&
                JXL_ENC_SUCCESS !=
-               JxlEncoderSetFrameDistance(frame_settings, compression_distance)) {
+               JxlEncoderSetFrameDistance(frameSettings, compression_distance)) {
+        return false;
+    }
+
+    if (JxlEncoderFrameSettingsSetOption(frameSettings,
+                                         JXL_ENC_FRAME_SETTING_EFFORT, effort) != JXL_ENC_SUCCESS) {
         return false;
     }
 

Sources/jxlc/JxlWorker.hpp

@@ -65,7 +65,7 @@ bool DecodeBasicInfo(const uint8_t *jxl, size_t size, size_t *xsize, size_t *ysi
 bool EncodeJxlOneshot(const std::vector<uint8_t> &pixels, const uint32_t xsize,
                       const uint32_t ysize, std::vector<uint8_t> *compressed,
                       JxlPixelType colorspace, JxlCompressionOption compression_option,
-                      float compression_distance);
+                      float compression_distance, int effort);
 
 template <typename DataType>
 class JXLDataWrapper {