1 files changed, 87 insertions, 0 deletions
diff --git a/gfx/layers/basic/MacIOSurfaceTextureHostBasic.h b/gfx/layers/basic/MacIOSurfaceTextureHostBasic.h
new file mode 100644
index 0000000000..9dd4c38a26
--- /dev/null
+++ b/gfx/layers/basic/MacIOSurfaceTextureHostBasic.h
@@ -0,0 +1,87 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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_MACIOSURFACETEXTUREHOST_BASIC_H
+#define MOZILLA_GFX_MACIOSURFACETEXTUREHOST_BASIC_H
+
+#include "mozilla/layers/BasicCompositor.h"
+#include "mozilla/layers/TextureHostBasic.h"
+
+class MacIOSurface;
+
+namespace mozilla {
+namespace layers {
+
+class BasicCompositor;
+
+/**
+ * A texture source meant for use with BasicCompositor.
+ *
+ * It does not own any GL texture, and attaches its shared handle to one of
+ * the compositor's temporary textures when binding.
+ */
+class MacIOSurfaceTextureSourceBasic : public TextureSourceBasic,
+                                       public TextureSource {
+ public:
+  explicit MacIOSurfaceTextureSourceBasic(MacIOSurface* aSurface);
+  virtual ~MacIOSurfaceTextureSourceBasic();
+
+  const char* Name() const override { return "MacIOSurfaceTextureSourceBasic"; }
+
+  TextureSourceBasic* AsSourceBasic() override { return this; }
+
+  gfx::IntSize GetSize() const override;
+  gfx::SurfaceFormat GetFormat() const override;
+  gfx::SourceSurface* GetSurface(gfx::DrawTarget* aTarget) override;
+
+  void DeallocateDeviceData() override {}
+
+ protected:
+  RefPtr<MacIOSurface> mSurface;
+  RefPtr<gfx::SourceSurface> mSourceSurface;
+};
+
+/**
+ * A TextureHost for shared MacIOSurface
+ *
+ * Most of the logic actually happens in MacIOSurfaceTextureSourceBasic.
+ */
+class MacIOSurfaceTextureHostBasic : public TextureHost {
+ public:
+  MacIOSurfaceTextureHostBasic(
+      TextureFlags aFlags, const SurfaceDescriptorMacIOSurface& aDescriptor);
+
+  void SetTextureSourceProvider(TextureSourceProvider* aProvider) override;
+
+  bool Lock() override;
+
+  gfx::SurfaceFormat GetFormat() const override;
+
+  bool BindTextureSource(CompositableTextureSourceRef& aTexture) override {
+    aTexture = mTextureSource;
+    return !!aTexture;
+  }
+
+  already_AddRefed<gfx::DataSourceSurface> GetAsSurface() override {
+    return nullptr;  // XXX - implement this (for MOZ_DUMP_PAINTING)
+  }
+
+  gfx::IntSize GetSize() const override;
+  MacIOSurface* GetMacIOSurface() override { return mSurface; }
+
+#ifdef MOZ_LAYERS_HAVE_LOG
+  const char* Name() override { return "MacIOSurfaceTextureHostBasic"; }
+#endif
+
+ protected:
+  RefPtr<MacIOSurfaceTextureSourceBasic> mTextureSource;
+  RefPtr<MacIOSurface> mSurface;
+};
+
+}  // namespace layers
+}  // namespace mozilla
+
+#endif  // MOZILLA_GFX_MACIOSURFACETEXTUREHOSTOGL_BASIC_H