Замена mlkit на свободную библиотеку

gradle/libs.versions.toml

@@ -26,7 +26,7 @@ okhttp = "5.3.2"
 workRuntime = "2.11.2"
 hiltWork = "1.3.0"
 cameraX = "1.6.1"
-mlkitBarcode = "17.3.0"
+zxing = "3.5.3"
 javaOtp = "0.4.0"
 appcompat = "1.7.1"
 datastore = "1.2.1"
@@ -90,7 +90,7 @@ androidx-camera-core = { group = "androidx.camera", name = "camera-core", versio
 androidx-camera-camera2 = { group = "androidx.camera", name = "camera-camera2", version.ref = "cameraX" }
 androidx-camera-lifecycle = { group = "androidx.camera", name = "camera-lifecycle", version.ref = "cameraX" }
 androidx-camera-view = { group = "androidx.camera", name = "camera-view", version.ref = "cameraX" }
-mlkit-barcode-scanning = { group = "com.google.mlkit", name = "barcode-scanning", version.ref = "mlkitBarcode" }
+zxing-core = { group = "com.google.zxing", name = "core", version.ref = "zxing" }
 java-otp = { group = "com.eatthepath", name = "java-otp", version.ref = "javaOtp" }
 
 androidx-ui = { group = "androidx.compose.ui", name = "ui" }

ui/build.gradle.kts

@@ -80,7 +80,7 @@ dependencies {
     implementation(libs.androidx.camera.camera2)
     implementation(libs.androidx.camera.lifecycle)
     implementation(libs.androidx.camera.view)
-    implementation(libs.mlkit.barcode.scanning)
+    implementation(libs.zxing.core)
 
     testImplementation(libs.junit)
     testImplementation(libs.kotlinx.coroutines.test)

ui/src/main/java/com/github/nullptroma/wallenc/ui/elements/QrImageDecoder.kt

@@ -0,0 +1,106 @@
+package com.github.nullptroma.wallenc.ui.elements
+
+import androidx.camera.core.ImageProxy
+import com.google.zxing.BarcodeFormat
+import com.google.zxing.BinaryBitmap
+import com.google.zxing.ChecksumException
+import com.google.zxing.DecodeHintType
+import com.google.zxing.FormatException
+import com.google.zxing.NotFoundException
+import com.google.zxing.PlanarYUVLuminanceSource
+import com.google.zxing.common.HybridBinarizer
+import com.google.zxing.qrcode.QRCodeReader
+
+internal object QrImageDecoder {
+    private val hints = mapOf(
+        DecodeHintType.POSSIBLE_FORMATS to listOf(BarcodeFormat.QR_CODE),
+        DecodeHintType.CHARACTER_SET to "UTF-8",
+    )
+    private val reader = QRCodeReader()
+
+    fun decode(imageProxy: ImageProxy): String? {
+        val yPlane = imageProxy.planes[0]
+        val yBuffer = yPlane.buffer
+        yBuffer.rewind()
+        val yRowStride = yPlane.rowStride
+        val yPixelStride = yPlane.pixelStride
+        val width = imageProxy.width
+        val height = imageProxy.height
+        val yBytes = ByteArray(width * height)
+        var outputOffset = 0
+        if (yPixelStride == 1 && yRowStride == width) {
+            yBuffer.get(yBytes, 0, yBytes.size.coerceAtMost(yBuffer.remaining()))
+        } else {
+            for (row in 0 until height) {
+                var inputOffset = row * yRowStride
+                for (col in 0 until width) {
+                    yBytes[outputOffset++] = yBuffer.get(inputOffset)
+                    inputOffset += yPixelStride
+                }
+            }
+        }
+        val (luminance, decodeWidth, decodeHeight) = orientLuminance(
+            yBytes,
+            width,
+            height,
+            imageProxy.imageInfo.rotationDegrees,
+        )
+        val source = PlanarYUVLuminanceSource(
+            luminance,
+            decodeWidth,
+            decodeHeight,
+            0,
+            0,
+            decodeWidth,
+            decodeHeight,
+            false,
+        )
+        return try {
+            reader.decode(BinaryBitmap(HybridBinarizer(source)), hints).text
+        } catch (_: NotFoundException) {
+            null
+        } catch (_: ChecksumException) {
+            null
+        } catch (_: FormatException) {
+            null
+        }
+    }
+
+    private fun orientLuminance(
+        yBytes: ByteArray,
+        width: Int,
+        height: Int,
+        rotationDegrees: Int,
+    ): Triple<ByteArray, Int, Int> = when (rotationDegrees) {
+        90 -> Triple(rotateY90(yBytes, width, height, clockwise = true), height, width)
+        180 -> Triple(rotateY180(yBytes, width, height), width, height)
+        270 -> Triple(rotateY90(yBytes, width, height, clockwise = false), height, width)
+        else -> Triple(yBytes, width, height)
+    }
+
+    private fun rotateY90(data: ByteArray, width: Int, height: Int, clockwise: Boolean): ByteArray {
+        val output = ByteArray(data.size)
+        for (y in 0 until height) {
+            for (x in 0 until width) {
+                val srcIndex = y * width + x
+                val dstIndex = if (clockwise) {
+                    x * height + (height - 1 - y)
+                } else {
+                    (width - 1 - x) * height + y
+                }
+                output[dstIndex] = data[srcIndex]
+            }
+        }
+        return output
+    }
+
+    private fun rotateY180(data: ByteArray, width: Int, height: Int): ByteArray {
+        val output = ByteArray(data.size)
+        for (y in 0 until height) {
+            for (x in 0 until width) {
+                output[(height - 1 - y) * width + (width - 1 - x)] = data[y * width + x]
+            }
+        }
+        return output
+    }
+}

ui/src/main/java/com/github/nullptroma/wallenc/ui/elements/QrScannerDialog.kt

@@ -31,10 +31,6 @@ import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.viewinterop.AndroidView
 import com.github.nullptroma.wallenc.ui.R
-import com.google.mlkit.vision.barcode.BarcodeScannerOptions
-import com.google.mlkit.vision.barcode.BarcodeScanning
-import com.google.mlkit.vision.barcode.common.Barcode
-import com.google.mlkit.vision.common.InputImage
 import java.util.concurrent.Executors
 import java.util.concurrent.atomic.AtomicBoolean
 
@@ -48,20 +44,12 @@ fun QrScannerDialog(
     val lifecycleOwner = androidx.lifecycle.compose.LocalLifecycleOwner.current
     val cameraProviderFuture = remember { ProcessCameraProvider.getInstance(context) }
     val cameraExecutor = remember { Executors.newSingleThreadExecutor() }
-    val scanner = remember {
-        BarcodeScanning.getClient(
-            BarcodeScannerOptions.Builder()
-                .setBarcodeFormats(Barcode.FORMAT_QR_CODE)
-                .build(),
-        )
-    }
     val consumed = remember { AtomicBoolean(false) }
     var previewViewRef by remember { mutableStateOf<PreviewView?>(null) }
 
     DisposableEffect(Unit) {
         onDispose {
             runCatching { cameraProviderFuture.get().unbindAll() }
-            runCatching { scanner.close() }
             cameraExecutor.shutdown()
         }
     }
@@ -76,24 +64,17 @@ fun QrScannerDialog(
             .setBackpressureStrategy(ImageAnalysis.STRATEGY_KEEP_ONLY_LATEST)
             .build()
             .also { imageAnalysis ->
+                imageAnalysis.targetRotation = previewView.display.rotation
                 imageAnalysis.setAnalyzer(cameraExecutor) { imageProxy ->
-                    val mediaImage = imageProxy.image
-                    if (mediaImage == null) {
+                    try {
+                        if (consumed.get()) return@setAnalyzer
+                        val raw = QrImageDecoder.decode(imageProxy)?.trim().orEmpty()
+                        if (raw.isNotBlank() && consumed.compareAndSet(false, true)) {
+                            onScanned(raw)
+                        }
+                    } finally {
                         imageProxy.close()
-                        return@setAnalyzer
                     }
-                    val input = InputImage.fromMediaImage(mediaImage, imageProxy.imageInfo.rotationDegrees)
-                    scanner.process(input)
-                        .addOnSuccessListener { barcodes ->
-                            if (consumed.get()) return@addOnSuccessListener
-                            val raw = barcodes.firstOrNull()?.rawValue?.trim().orEmpty()
-                            if (raw.isNotBlank() && consumed.compareAndSet(false, true)) {
-                                onScanned(raw)
-                            }
-                        }
-                        .addOnCompleteListener {
-                            imageProxy.close()
-                        }
                 }
             }
         cameraProvider.unbindAll()