1 files changed, 10 insertions, 1 deletions
diff --git a/include/gpu/SkGpuDeviceFactory.h b/include/gpu/SkGpuDeviceFactory.h
index 5dcba6a..6f62ad6 100644
--- a/include/gpu/SkGpuDeviceFactory.h
+++ b/include/gpu/SkGpuDeviceFactory.h
@@ -21,7 +21,7 @@
 
 class GrContext;
 
-class SkGpuDeviceFactory : public SkDeviceFactory {
+class SK_API SkGpuDeviceFactory : public SkDeviceFactory {
 public:
     /**
      *  The constructor will ref() the context, passing it to each device
@@ -34,6 +34,14 @@ public:
      *  construction.
      */
     SkGpuDeviceFactory(GrContext*, GrRenderTarget* rootRenderTarget);
+    
+    /**
+     * When the root layer is both a GrRenderTarget and a GrTexture it
+     * is handy to have the factory hang on to a ref to the GrTexture object.
+     * This is because the GrTexture has a ref to the GrRenderTarget but not
+     * vice-versa.
+     */
+    SkGpuDeviceFactory(GrContext*, GrTexture* rootRenderTargetTexture);
 
     virtual ~SkGpuDeviceFactory();
 
@@ -43,6 +51,7 @@ public:
 private:
     GrContext* fContext;
     GrRenderTarget* fRootRenderTarget;
+    GrTexture* fRootTexture;
 };
 
 #endif