2 files changed, 14 insertions, 0 deletions
diff --git a/core/java/android/hardware/camera2/legacy/LegacyCameraDevice.java b/core/java/android/hardware/camera2/legacy/LegacyCameraDevice.java
index a3a998e..cc95c0e 100644
--- a/core/java/android/hardware/camera2/legacy/LegacyCameraDevice.java
+++ b/core/java/android/hardware/camera2/legacy/LegacyCameraDevice.java
@@ -87,6 +87,9 @@ public class LegacyCameraDevice implements AutoCloseable {
 
     public static final int MAX_DIMEN_FOR_ROUNDING = 1080; // maximum allowed width for rounding
 
+    // Keep up to date with values in system/core/include/system/window.h
+    public static final int NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW = 1;
+
     private CaptureResultExtras getExtrasFromRequest(RequestHolder holder) {
         if (holder == null) {
             return new CaptureResultExtras(ILLEGAL_VALUE, ILLEGAL_VALUE, ILLEGAL_VALUE,
@@ -690,6 +693,13 @@ public class LegacyCameraDevice implements AutoCloseable {
         LegacyExceptionUtils.throwOnError(nativeSetNextTimestamp(surface, timestamp));
     }
 
+    static void setScalingMode(Surface surface, int mode)
+            throws BufferQueueAbandonedException {
+        checkNotNull(surface);
+        LegacyExceptionUtils.throwOnError(nativeSetScalingMode(surface, mode));
+    }
+
+
     private static native int nativeDetectSurfaceType(Surface surface);
 
     private static native int nativeDetectSurfaceDimens(Surface surface,
@@ -717,5 +727,7 @@ public class LegacyCameraDevice implements AutoCloseable {
 
     private static native int nativeDetectSurfaceUsageFlags(Surface surface);
 
+    private static native int nativeSetScalingMode(Surface surface, int scalingMode);
+
     static native int nativeGetJpegFooterSize();
 }
diff --git a/core/java/android/hardware/camera2/legacy/RequestThreadManager.java b/core/java/android/hardware/camera2/legacy/RequestThreadManager.java
index f80726f..348b14a 100644
--- a/core/java/android/hardware/camera2/legacy/RequestThreadManager.java
+++ b/core/java/android/hardware/camera2/legacy/RequestThreadManager.java
@@ -384,6 +384,8 @@ public class RequestThreadManager {
                             callbackOutputSizes.add(outSize);
                             break;
                         default:
+                            LegacyCameraDevice.setScalingMode(s, LegacyCameraDevice.
+                                    NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW);
                             mPreviewOutputs.add(s);
                             previewOutputSizes.add(outSize);
                             break;