Add m-esr52 at 52.6.0

1 files changed, 72 insertions, 0 deletions

diff --git a/gfx/layers/composite/X11TextureHost.h b/gfx/layers/composite/X11TextureHost.h
new file mode 100644
index 000000000..1f1d34409
--- /dev/null
+++ b/gfx/layers/composite/X11TextureHost.h
@@ -0,0 +1,72 @@
+/* -*- 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_X11TEXTUREHOST__H
+#define MOZILLA_GFX_X11TEXTUREHOST__H
+
+#include "mozilla/layers/TextureHost.h"
+#include "mozilla/layers/LayersSurfaces.h"
+#include "mozilla/gfx/Types.h"
+
+#include "gfxXlibSurface.h"
+
+namespace mozilla {
+namespace layers {
+
+class X11TextureSource : public TextureSource
+{
+public:
+  // Called when the underlying X surface has been changed.
+  // Useful for determining whether to rebind a GLXPixmap to a texture.
+  virtual void Updated() = 0;
+
+  virtual const char* Name() const override { return "X11TextureSource"; }
+};
+
+// TextureHost for Xlib-backed TextureSources.
+class X11TextureHost : public TextureHost
+{
+public:
+  X11TextureHost(TextureFlags aFlags,
+                 const SurfaceDescriptorX11& aDescriptor);
+
+  virtual void SetCompositor(Compositor* aCompositor) override;
+
+  virtual Compositor* GetCompositor() override { return mCompositor; }
+
+  virtual bool Lock() override;
+
+  virtual gfx::SurfaceFormat GetFormat() const override;
+
+  virtual gfx::IntSize GetSize() const override;
+
+  virtual bool BindTextureSource(CompositableTextureSourceRef& aTexture) override
+  {
+    aTexture = mTextureSource;
+    return !!aTexture;
+  }
+
+  virtual already_AddRefed<gfx::DataSourceSurface> GetAsSurface() override;
+
+#ifdef MOZ_LAYERS_HAVE_LOG
+  virtual const char* Name() override { return "X11TextureHost"; }
+#endif
+
+protected:
+  virtual void UpdatedInternal(const nsIntRegion*) override
+  {
+    if (mTextureSource)
+      mTextureSource->Updated();
+  }
+
+  RefPtr<Compositor> mCompositor;
+  RefPtr<X11TextureSource> mTextureSource;
+  RefPtr<gfxXlibSurface> mSurface;
+};
+
+} // namespace layers
+} // namespace mozilla
+
+#endif // MOZILLA_GFX_X11TEXTUREHOST__H