Add camera service support for SurfaceTexture.

This change enables the use of a SurfaceTexture in place of a Surface as
the destination of camera preview frames.

Change-Id: Ic70d404c8fe261e9d5da6f1de93d6babb5b191cb

1 files changed, 14 insertions, 0 deletions

diff --git a/libs/camera/Camera.cpp b/libs/camera/Camera.cpp
index ab626ad4c9e0..907f119b8174 100644
--- a/libs/camera/Camera.cpp
+++ b/libs/camera/Camera.cpp
@@ -182,6 +182,20 @@ status_t Camera::setPreviewDisplay(const sp<Surface>& surface)
     }
 }
 
+// pass the buffered ISurfaceTexture to the camera service
+status_t Camera::setPreviewTexture(const sp<ISurfaceTexture>& surfaceTexture)
+{
+    LOGV("setPreviewTexture(%p)", surfaceTexture.get());
+    sp <ICamera> c = mCamera;
+    if (c == 0) return NO_INIT;
+    if (surfaceTexture != 0) {
+        return c->setPreviewTexture(surfaceTexture);
+    } else {
+        LOGD("app passed NULL surface");
+        return c->setPreviewTexture(0);
+    }
+}
+
 // start preview mode
 status_t Camera::startPreview()
 {