Add m-esr52 at 52.6.0

1 files changed, 77 insertions, 0 deletions

diff --git a/gfx/layers/client/TextureClientSharedSurface.h b/gfx/layers/client/TextureClientSharedSurface.h
new file mode 100644
index 000000000..cfe5085f8
--- /dev/null
+++ b/gfx/layers/client/TextureClientSharedSurface.h
@@ -0,0 +1,77 @@
+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * 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 MOZILLA_GFX_TEXTURECLIENT_SHAREDSURFACE_H
+#define MOZILLA_GFX_TEXTURECLIENT_SHAREDSURFACE_H
+
+#include <cstddef>                      // for size_t
+#include <stdint.h>                     // for uint32_t, uint8_t, uint64_t
+#include "GLContextTypes.h"             // for GLContext (ptr only), etc
+#include "TextureClient.h"
+#include "mozilla/Assertions.h"         // for MOZ_ASSERT, etc
+#include "mozilla/RefPtr.h"             // for RefPtr, RefCounted
+#include "mozilla/gfx/Point.h"          // for IntSize
+#include "mozilla/gfx/Types.h"          // for SurfaceFormat
+#include "mozilla/layers/CompositorTypes.h"  // for TextureFlags, etc
+#include "mozilla/layers/LayersSurfaces.h"  // for SurfaceDescriptor
+
+namespace mozilla {
+namespace gl {
+class GLContext;
+class SharedSurface;
+class SurfaceFactory;
+} // namespace gl
+
+namespace layers {
+
+class SharedSurfaceTextureClient;
+
+class SharedSurfaceTextureData : public TextureData
+{
+protected:
+  const UniquePtr<gl::SharedSurface> mSurf;
+
+  friend class SharedSurfaceTextureClient;
+
+  explicit SharedSurfaceTextureData(UniquePtr<gl::SharedSurface> surf);
+public:
+
+  ~SharedSurfaceTextureData();
+
+  virtual bool Lock(OpenMode) override { return false; }
+
+  virtual void Unlock() override {}
+
+  virtual void FillInfo(TextureData::Info& aInfo) const override;
+
+  virtual bool Serialize(SurfaceDescriptor& aOutDescriptor) override;
+
+  virtual void Deallocate(LayersIPCChannel*) override;
+
+  gl::SharedSurface* Surf() const { return mSurf.get(); }
+};
+
+class SharedSurfaceTextureClient : public TextureClient
+{
+public:
+  SharedSurfaceTextureClient(SharedSurfaceTextureData* aData,
+                             TextureFlags aFlags,
+                             LayersIPCChannel* aAllocator);
+
+  ~SharedSurfaceTextureClient();
+
+  static already_AddRefed<SharedSurfaceTextureClient>
+  Create(UniquePtr<gl::SharedSurface> surf, gl::SurfaceFactory* factory,
+         LayersIPCChannel* aAllocator, TextureFlags aFlags);
+
+  gl::SharedSurface* Surf() const {
+    return static_cast<const SharedSurfaceTextureData*>(GetInternalData())->Surf();
+  }
+};
+
+} // namespace layers
+} // namespace mozilla
+
+#endif // MOZILLA_GFX_TEXTURECLIENT_SHAREDSURFACE_H