1 files changed, 63 insertions, 0 deletions
diff --git a/gfx/webrender_bindings/RenderBufferTextureHost.h b/gfx/webrender_bindings/RenderBufferTextureHost.h
new file mode 100644
index 0000000000..b104e00025
--- /dev/null
+++ b/gfx/webrender_bindings/RenderBufferTextureHost.h
@@ -0,0 +1,63 @@
+/* -*- 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_RENDERBUFFERTEXTUREHOST_H
+#define MOZILLA_GFX_RENDERBUFFERTEXTUREHOST_H
+
+#include "RenderTextureHost.h"
+
+namespace mozilla {
+namespace wr {
+
+class RenderBufferTextureHost final : public RenderTextureHost {
+ public:
+  RenderBufferTextureHost(uint8_t* aBuffer,
+                          const layers::BufferDescriptor& aDescriptor);
+
+  wr::WrExternalImage Lock(uint8_t aChannelIndex, gl::GLContext* aGL,
+                           wr::ImageRendering aRendering) override;
+  void Unlock() override;
+
+  size_t Bytes() override {
+    return mSize.width * mSize.height * BytesPerPixel(mFormat);
+  }
+  class RenderBufferData {
+   public:
+    RenderBufferData(uint8_t* aData, size_t aBufferSize)
+        : mData(aData), mBufferSize(aBufferSize) {}
+    const uint8_t* mData;
+    size_t mBufferSize;
+  };
+
+  RenderBufferData GetBufferDataForRender(uint8_t aChannelIndex);
+
+ private:
+  virtual ~RenderBufferTextureHost();
+
+  uint8_t* GetBuffer() const { return mBuffer; }
+
+  uint8_t* mBuffer;
+  layers::BufferDescriptor mDescriptor;
+  gfx::IntSize mSize;
+  gfx::SurfaceFormat mFormat;
+
+  RefPtr<gfx::DataSourceSurface> mSurface;
+  gfx::DataSourceSurface::MappedSurface mMap;
+
+  RefPtr<gfx::DataSourceSurface> mYSurface;
+  RefPtr<gfx::DataSourceSurface> mCbSurface;
+  RefPtr<gfx::DataSourceSurface> mCrSurface;
+  gfx::DataSourceSurface::MappedSurface mYMap;
+  gfx::DataSourceSurface::MappedSurface mCbMap;
+  gfx::DataSourceSurface::MappedSurface mCrMap;
+
+  bool mLocked;
+};
+
+}  // namespace wr
+}  // namespace mozilla
+
+#endif  // MOZILLA_GFX_RENDERBUFFERTEXTUREHOST_H