1 files changed, 69 insertions, 0 deletions
diff --git a/gfx/gl/SharedSurfaceDMABUF.h b/gfx/gl/SharedSurfaceDMABUF.h
new file mode 100644
index 0000000000..6aaa4d333e
--- /dev/null
+++ b/gfx/gl/SharedSurfaceDMABUF.h
@@ -0,0 +1,69 @@
+/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 4; -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef SHARED_SURFACE_DMABUF_H_
+#define SHARED_SURFACE_DMABUF_H_
+
+#include "SharedSurface.h"
+#include "mozilla/widget/DMABufSurface.h"
+
+namespace mozilla {
+namespace gl {
+
+class GLContext;
+class GLLibraryEGL;
+
+class SharedSurface_DMABUF final : public SharedSurface {
+ public:
+  const RefPtr<DMABufSurface> mSurface;
+
+  static UniquePtr<SharedSurface_DMABUF> Create(const SharedSurfaceDesc&);
+
+ private:
+  SharedSurface_DMABUF(const SharedSurfaceDesc&, UniquePtr<MozFramebuffer>,
+                       RefPtr<DMABufSurface>);
+
+  void UpdateProdTexture(const MutexAutoLock& curAutoLock);
+
+ public:
+  virtual ~SharedSurface_DMABUF();
+
+  // Exclusive Content/WebGL lock/unlock of surface for write
+  virtual void LockProdImpl() override {}
+  virtual void UnlockProdImpl() override {}
+
+  // Non-exclusive Content/WebGL lock/unlock of surface for write
+  virtual void ProducerAcquireImpl() override {}
+  virtual void ProducerReleaseImpl() override;
+
+  // Non-exclusive Content/WebGL lock/unlock for read from surface
+  virtual void ProducerReadAcquireImpl() override {}
+  virtual void ProducerReadReleaseImpl() override {}
+
+  Maybe<layers::SurfaceDescriptor> ToSurfaceDescriptor() override;
+
+  void WaitForBufferOwnership() override;
+};
+
+class SurfaceFactory_DMABUF : public SurfaceFactory {
+ public:
+  static UniquePtr<SurfaceFactory_DMABUF> Create(GLContext& gl);
+
+  explicit SurfaceFactory_DMABUF(GLContext&);
+
+ public:
+  virtual UniquePtr<SharedSurface> CreateSharedImpl(
+      const SharedSurfaceDesc& desc) override {
+    return SharedSurface_DMABUF::Create(desc);
+  }
+
+  bool CanCreateSurface(GLContext& gl);
+};
+
+}  // namespace gl
+
+}  // namespace mozilla
+
+#endif /* SHARED_SURFACE_DMABUF_H_ */