1 files changed, 64 insertions, 0 deletions
diff --git a/gfx/gl/SharedSurfaceIO.h b/gfx/gl/SharedSurfaceIO.h
new file mode 100644
index 0000000000..938173b982
--- /dev/null
+++ b/gfx/gl/SharedSurfaceIO.h
@@ -0,0 +1,64 @@
+/* -*- 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_SURFACEIO_H_
+#define SHARED_SURFACEIO_H_
+
+#include "mozilla/RefPtr.h"
+#include "SharedSurface.h"
+
+class MacIOSurface;
+
+namespace mozilla {
+namespace gl {
+
+class Texture;
+
+class SharedSurface_IOSurface final : public SharedSurface {
+ public:
+  const UniquePtr<Texture> mTex;
+  const RefPtr<MacIOSurface> mIOSurf;
+
+  static UniquePtr<SharedSurface_IOSurface> Create(const SharedSurfaceDesc&);
+
+ private:
+  SharedSurface_IOSurface(const SharedSurfaceDesc&, UniquePtr<MozFramebuffer>,
+                          UniquePtr<Texture>, const RefPtr<MacIOSurface>&);
+
+ public:
+  ~SharedSurface_IOSurface();
+
+  virtual void LockProdImpl() override {}
+  virtual void UnlockProdImpl() override {}
+
+  virtual void ProducerAcquireImpl() override {}
+  virtual void ProducerReleaseImpl() override;
+
+  virtual bool NeedsIndirectReads() const override { return true; }
+
+  Maybe<layers::SurfaceDescriptor> ToSurfaceDescriptor() override;
+};
+
+class SurfaceFactory_IOSurface : public SurfaceFactory {
+ public:
+  const gfx::IntSize mMaxDims;
+
+  explicit SurfaceFactory_IOSurface(GLContext& gl);
+
+  virtual UniquePtr<SharedSurface> CreateSharedImpl(
+      const SharedSurfaceDesc& desc) override {
+    if (desc.size.width > mMaxDims.width ||
+        desc.size.height > mMaxDims.height) {
+      return nullptr;
+    }
+    return SharedSurface_IOSurface::Create(desc);
+  }
+};
+
+}  // namespace gl
+
+} /* namespace mozilla */
+
+#endif /* SHARED_SURFACEIO_H_ */