2 files changed, 10 insertions, 0 deletions
diff --git a/src/gpu/gl/GrGLGpu.cpp b/src/gpu/gl/GrGLGpu.cpp
index e842ddc4f5..a2eabe4e46 100644
--- a/src/gpu/gl/GrGLGpu.cpp
+++ b/src/gpu/gl/GrGLGpu.cpp
@@ -4476,3 +4476,11 @@ void GrGLGpu::waitSemaphore(sk_sp<GrSemaphore> semaphore) {
 void GrGLGpu::deleteSync(GrGLsync sync) const {
     GL_CALL(DeleteSync(sync));
 }
+
+sk_sp<GrSemaphore> GrGLGpu::prepareTextureForCrossContextUsage(GrTexture* texture) {
+    // Set up a semaphore to be signaled once the data is ready, and flush GL
+    sk_sp<GrSemaphore> semaphore = this->makeSemaphore();
+    this->insertSemaphore(semaphore, true);
+
+    return semaphore;
+}
diff --git a/src/gpu/gl/GrGLGpu.h b/src/gpu/gl/GrGLGpu.h
index 04929f89fa..041ecfb5ce 100644
--- a/src/gpu/gl/GrGLGpu.h
+++ b/src/gpu/gl/GrGLGpu.h
@@ -149,6 +149,8 @@ public:
     void insertSemaphore(sk_sp<GrSemaphore> semaphore, bool flush) override;
     void waitSemaphore(sk_sp<GrSemaphore> semaphore) override;
 
+    sk_sp<GrSemaphore> prepareTextureForCrossContextUsage(GrTexture*) override;
+
     void deleteSync(GrGLsync) const;
 
 private: