Add boolean Flag to decide if image should be original size or not

paparazzi-gradle-plugin/src/test/java/app/cash/paparazzi/gradle/PaparazziPluginTest.kt

@@ -1619,6 +1619,31 @@ class PaparazziPluginTest {
     assertThat(nexus7SnapshotImage).isSimilarTo(nexus7GoldenImage).withDefaultThreshold()
   }
 
+  @Test
+  fun scaledVersusFullDeviceResolution() {
+    val fixtureRoot = File("src/test/projects/device-resolution")
+
+    gradleRunner
+      .withArguments("testDebug", "--stacktrace")
+      .runFixture(fixtureRoot) { build() }
+
+    val snapshotsDir = File(fixtureRoot, "build/reports/paparazzi/debug/images")
+    val snapshots = snapshotsDir.listFiles()?.sortedBy { it.lastModified() }
+    assertThat(snapshots!!).hasSize(2)
+
+    val defaultSnapshotImage = snapshots[0]
+    val deviceResolutionSnapshotImage = snapshots[1]
+    val defaultGoldenImage =
+      File(fixtureRoot, "src/test/resources/default_resolution.png")
+    val deviceResolutionGoldenImage =
+      File(fixtureRoot, "src/test/resources/full_resolution.png")
+    assertThat(defaultSnapshotImage).isSimilarTo(defaultGoldenImage)
+      .withDefaultThreshold()
+    assertThat(deviceResolutionSnapshotImage).isSimilarTo(
+      deviceResolutionGoldenImage
+    ).withDefaultThreshold()
+  }
+
   @Test
   fun localeQualifier() {
     val fixtureRoot = File("src/test/projects/locale-qualifier")

paparazzi-gradle-plugin/src/test/projects/device-resolution/build.gradle

@@ -0,0 +1,28 @@
+plugins {
+  id 'com.android.library'
+  id 'kotlin-android'
+  id 'app.cash.paparazzi'
+}
+
+android {
+  namespace 'app.cash.paparazzi.plugin.test'
+  compileSdk libs.versions.compileSdk.get() as int
+  defaultConfig {
+    minSdk libs.versions.minSdk.get() as int
+  }
+  compileOptions {
+    sourceCompatibility = libs.versions.javaTarget.get()
+    targetCompatibility = libs.versions.javaTarget.get()
+  }
+  kotlinOptions {
+    jvmTarget = libs.versions.javaTarget.get()
+  }
+}
+
+dependencies {
+  implementation libs.androidx.appcompat
+
+  testImplementation libs.testParameterInjector
+}
+
+apply from: '../guava-fix.gradle'

paparazzi-gradle-plugin/src/test/projects/device-resolution/src/main/res/layout/launch.xml

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:gravity="center"
+    android:background="@color/launchBackground"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    >
+
+  <ImageView
+      android:layout_width="200dp"
+      android:layout_height="200dp"
+      android:src="@drawable/camera"
+      />
+
+  <TextView
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content"
+      android:gravity="center"
+      android:textColor="@color/cameraBody"
+      android:text="paparazzi"
+      android:textSize="70dp"
+      android:textFontWeight="100"
+      />
+
+</LinearLayout>

paparazzi-gradle-plugin/src/test/projects/device-resolution/src/main/res/values/colors.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+  <color name="launchBackground">#dcdccc</color>
+  <color name="cameraBody">#332F21</color>
+</resources>

paparazzi-gradle-plugin/src/test/projects/device-resolution/src/main/res/values/strings.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="color">Color</string>
+    <string name="sample_image">sample_image</string>
+</resources>

paparazzi-gradle-plugin/src/test/projects/device-resolution/src/test/java/app/cash/paparazzi/plugin/test/DeviceResolutionTest.kt

@@ -0,0 +1,26 @@
+package app.cash.paparazzi.plugin.test
+
+import app.cash.paparazzi.DeviceConfig
+import app.cash.paparazzi.Paparazzi
+import com.google.testing.junit.testparameterinjector.TestParameter
+import com.google.testing.junit.testparameterinjector.TestParameterInjector
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+
+@RunWith(TestParameterInjector::class)
+class DeviceResolutionTest(
+  @TestParameter useDeviceResolutionFlag: Boolean
+) {
+
+  @get:Rule
+  val paparazzi = Paparazzi(
+    deviceConfig = DeviceConfig.NEXUS_5,
+    useDeviceResolution = useDeviceResolutionFlag
+  )
+
+  @Test
+  fun deviceResolution() {
+    paparazzi.snapshot(paparazzi.inflate(R.layout.launch))
+  }
+}

paparazzi/api/paparazzi.api

@@ -122,7 +122,8 @@ public final class app/cash/paparazzi/Paparazzi : org/junit/rules/TestRule {
 	public fun <init> (Lapp/cash/paparazzi/Environment;Lapp/cash/paparazzi/DeviceConfig;Ljava/lang/String;Lcom/android/ide/common/rendering/api/SessionParams$RenderingMode;ZDLapp/cash/paparazzi/SnapshotHandler;Ljava/util/Set;Z)V
 	public fun <init> (Lapp/cash/paparazzi/Environment;Lapp/cash/paparazzi/DeviceConfig;Ljava/lang/String;Lcom/android/ide/common/rendering/api/SessionParams$RenderingMode;ZDLapp/cash/paparazzi/SnapshotHandler;Ljava/util/Set;ZZ)V
 	public fun <init> (Lapp/cash/paparazzi/Environment;Lapp/cash/paparazzi/DeviceConfig;Ljava/lang/String;Lcom/android/ide/common/rendering/api/SessionParams$RenderingMode;ZDLapp/cash/paparazzi/SnapshotHandler;Ljava/util/Set;ZZZ)V
-	public synthetic fun <init> (Lapp/cash/paparazzi/Environment;Lapp/cash/paparazzi/DeviceConfig;Ljava/lang/String;Lcom/android/ide/common/rendering/api/SessionParams$RenderingMode;ZDLapp/cash/paparazzi/SnapshotHandler;Ljava/util/Set;ZZZILkotlin/jvm/internal/DefaultConstructorMarker;)V
+	public fun <init> (Lapp/cash/paparazzi/Environment;Lapp/cash/paparazzi/DeviceConfig;Ljava/lang/String;Lcom/android/ide/common/rendering/api/SessionParams$RenderingMode;ZDLapp/cash/paparazzi/SnapshotHandler;Ljava/util/Set;ZZZZ)V
+	public synthetic fun <init> (Lapp/cash/paparazzi/Environment;Lapp/cash/paparazzi/DeviceConfig;Ljava/lang/String;Lcom/android/ide/common/rendering/api/SessionParams$RenderingMode;ZDLapp/cash/paparazzi/SnapshotHandler;Ljava/util/Set;ZZZZILkotlin/jvm/internal/DefaultConstructorMarker;)V
 	public fun apply (Lorg/junit/runners/model/Statement;Lorg/junit/runner/Description;)Lorg/junit/runners/model/Statement;
 	public final fun close ()V
 	public final fun getContext ()Landroid/content/Context;
@@ -153,7 +154,8 @@ public final class app/cash/paparazzi/PaparazziSdk {
 	public fun <init> (Lapp/cash/paparazzi/Environment;Lapp/cash/paparazzi/DeviceConfig;Ljava/lang/String;Lcom/android/ide/common/rendering/api/SessionParams$RenderingMode;ZLjava/util/Set;ZLkotlin/jvm/functions/Function1;)V
 	public fun <init> (Lapp/cash/paparazzi/Environment;Lapp/cash/paparazzi/DeviceConfig;Ljava/lang/String;Lcom/android/ide/common/rendering/api/SessionParams$RenderingMode;ZLjava/util/Set;ZZLkotlin/jvm/functions/Function1;)V
 	public fun <init> (Lapp/cash/paparazzi/Environment;Lapp/cash/paparazzi/DeviceConfig;Ljava/lang/String;Lcom/android/ide/common/rendering/api/SessionParams$RenderingMode;ZLjava/util/Set;ZZZLkotlin/jvm/functions/Function1;)V
-	public synthetic fun <init> (Lapp/cash/paparazzi/Environment;Lapp/cash/paparazzi/DeviceConfig;Ljava/lang/String;Lcom/android/ide/common/rendering/api/SessionParams$RenderingMode;ZLjava/util/Set;ZZZLkotlin/jvm/functions/Function1;ILkotlin/jvm/internal/DefaultConstructorMarker;)V
+	public fun <init> (Lapp/cash/paparazzi/Environment;Lapp/cash/paparazzi/DeviceConfig;Ljava/lang/String;Lcom/android/ide/common/rendering/api/SessionParams$RenderingMode;ZLjava/util/Set;ZZZZLkotlin/jvm/functions/Function1;)V
+	public synthetic fun <init> (Lapp/cash/paparazzi/Environment;Lapp/cash/paparazzi/DeviceConfig;Ljava/lang/String;Lcom/android/ide/common/rendering/api/SessionParams$RenderingMode;ZLjava/util/Set;ZZZZLkotlin/jvm/functions/Function1;ILkotlin/jvm/internal/DefaultConstructorMarker;)V
 	public fun <init> (Lapp/cash/paparazzi/Environment;Lapp/cash/paparazzi/DeviceConfig;Ljava/lang/String;Lcom/android/ide/common/rendering/api/SessionParams$RenderingMode;ZLkotlin/jvm/functions/Function1;)V
 	public fun <init> (Lapp/cash/paparazzi/Environment;Lapp/cash/paparazzi/DeviceConfig;Ljava/lang/String;Lkotlin/jvm/functions/Function1;)V
 	public fun <init> (Lapp/cash/paparazzi/Environment;Lapp/cash/paparazzi/DeviceConfig;Lkotlin/jvm/functions/Function1;)V

paparazzi/src/main/java/app/cash/paparazzi/Paparazzi.kt

@@ -38,7 +38,8 @@ public class Paparazzi @JvmOverloads constructor(
   private val renderExtensions: Set<RenderExtension> = setOf(),
   private val supportsRtl: Boolean = false,
   private val showSystemUi: Boolean = false,
-  private val validateAccessibility: Boolean = false
+  private val validateAccessibility: Boolean = false,
+  private val useDeviceResolution: Boolean = false
 ) : TestRule {
   private lateinit var sdk: PaparazziSdk
   private lateinit var frameHandler: SnapshotHandler.FrameHandler
@@ -69,7 +70,8 @@ public class Paparazzi @JvmOverloads constructor(
           supportsRtl = supportsRtl,
           showSystemUi = showSystemUi,
           validateAccessibility = validateAccessibility,
-          onNewFrame = { frameHandler.handle(it) }
+          onNewFrame = { frameHandler.handle(it) },
+          useDeviceResolution = useDeviceResolution
         )
         sdk.setup()
         prepare(description)

paparazzi/src/main/java/app/cash/paparazzi/PaparazziSdk.kt

@@ -91,6 +91,7 @@ public class PaparazziSdk @JvmOverloads constructor(
   private val supportsRtl: Boolean = false,
   private val showSystemUi: Boolean = false,
   private val validateAccessibility: Boolean = false,
+  private val useDeviceResolution: Boolean = false,
   private val onNewFrame: (BufferedImage) -> Unit
 ) {
   private val logger = PaparazziLogger()
@@ -381,8 +382,8 @@ public class PaparazziSdk @JvmOverloads constructor(
 
   private fun scaleImage(image: BufferedImage): BufferedImage {
     val scale = ImageUtils.getThumbnailScale(image)
-    // Only scale images down so we don't waste storage space enlarging smaller layouts.
-    return if (scale < 1f) ImageUtils.scale(image, scale, scale) else image
+    // Only scale images down, so we don't waste storage space enlarging smaller layouts.
+    return if (scale < 1f && !useDeviceResolution) ImageUtils.scale(image, scale, scale) else image
   }
 
   private fun validateLayoutAccessibility(view: View, image: BufferedImage? = null) {