1 files changed, 25 insertions, 0 deletions
diff --git a/include/core/SkSurface.h b/include/core/SkSurface.h
index efa2428ccb..6fad21721e 100644
--- a/include/core/SkSurface.h
+++ b/include/core/SkSurface.h
@@ -15,6 +15,7 @@
 class SkCanvas;
 class SkPaint;
 class GrBackendRenderTarget;
+class GrBackendSemaphore;
 class GrContext;
 class GrRenderTarget;
 
@@ -323,9 +324,33 @@ public:
 
     /**
      * Issue any pending surface IO to the current backend 3D API and resolve any surface MSAA.
+     *
+     * The flush calls below are the new preferred way to flush calls to a surface, and this call
+     * will eventually be removed.
      */
     void prepareForExternalIO();
 
+    /**
+     * Issue any pending surface IO to the current backend 3D API
+     */
+    void flush();
+
+    /**
+     * Issue any pending surface IO to the current backend 3D API. After issuing all commands, we
+     * will issue numSemaphore semaphores for the gpu to signal. We will then fill in the array
+     * signalSemaphores with the info on the semaphores we submitted. The client is reposonsible for
+     * allocating enough space in signalSemaphores to handle numSemaphores of GrBackendSemaphores.
+     * The client will also take ownership of the returned underlying backend semaphores.
+     */
+    void flushAndSignalSemaphores(int numSemaphores, GrBackendSemaphore* signalSemaphores);
+
+    /**
+     * Inserts a list of GPU semaphores that the current backend 3D API must wait on before
+     * executing any more commands on the GPU for this surface. Skia will take ownership of the
+     * underlying semaphores and delete them once they have been signaled and waited on.
+     */
+    void wait(int numSemaphores, const GrBackendSemaphore* waitSemaphores);
+
 protected:
     SkSurface(int width, int height, const SkSurfaceProps*);
     SkSurface(const SkImageInfo&, const SkSurfaceProps*);