1 files changed, 57 insertions, 0 deletions
diff --git a/gfx/angle/checkout/src/libANGLE/Semaphore.h b/gfx/angle/checkout/src/libANGLE/Semaphore.h
new file mode 100644
index 0000000000..02bdabedca
--- /dev/null
+++ b/gfx/angle/checkout/src/libANGLE/Semaphore.h
@@ -0,0 +1,57 @@
+//
+// Copyright 2019 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+// Semaphore.h: Defines the gl::Semaphore class [EXT_external_objects]
+
+#ifndef LIBANGLE_SEMAPHORE_H_
+#define LIBANGLE_SEMAPHORE_H_
+
+#include <memory>
+
+#include "angle_gl.h"
+#include "common/PackedEnums.h"
+#include "common/angleutils.h"
+#include "libANGLE/Error.h"
+#include "libANGLE/RefCountObject.h"
+#include "libANGLE/angletypes.h"
+
+namespace rx
+{
+class GLImplFactory;
+class SemaphoreImpl;
+}  // namespace rx
+
+namespace gl
+{
+class Context;
+
+class Semaphore final : public RefCountObject<SemaphoreID>
+{
+  public:
+    Semaphore(rx::GLImplFactory *factory, SemaphoreID id);
+    ~Semaphore() override;
+
+    void onDestroy(const Context *context) override;
+
+    rx::SemaphoreImpl *getImplementation() const { return mImplementation.get(); }
+
+    angle::Result importFd(Context *context, HandleType handleType, GLint fd);
+    angle::Result importZirconHandle(Context *context, HandleType handleType, GLuint handle);
+
+    angle::Result wait(Context *context,
+                       const BufferBarrierVector &bufferBarriers,
+                       const TextureBarrierVector &textureBarriers);
+
+    angle::Result signal(Context *context,
+                         const BufferBarrierVector &bufferBarriers,
+                         const TextureBarrierVector &textureBarriers);
+
+  private:
+    std::unique_ptr<rx::SemaphoreImpl> mImplementation;
+};
+
+}  // namespace gl
+
+#endif  // LIBANGLE_SEMAPHORE_H_