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68 lines
2.0 KiB
C++
68 lines
2.0 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef GFX_D3DSURFACEIMAGE_H
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#define GFX_D3DSURFACEIMAGE_H
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#include "mozilla/RefPtr.h"
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#include "ImageContainer.h"
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#include "nsAutoPtr.h"
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#include "d3d9.h"
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namespace mozilla {
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namespace layers {
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// Image class that wraps a IDirect3DSurface9. This class copies the image
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// passed into SetData(), so that it can be accessed from other D3D devices.
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// This class also manages the synchronization of the copy, to ensure the
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// resource is ready to use.
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class D3D9SurfaceImage : public Image {
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public:
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struct Data {
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Data(IDirect3DSurface9* aSurface, const nsIntRect& aRegion)
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: mSurface(aSurface), mRegion(aRegion) {}
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RefPtr<IDirect3DSurface9> mSurface;
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nsIntRect mRegion;
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};
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D3D9SurfaceImage() : Image(nullptr, D3D9_RGB32_TEXTURE), mSize(0, 0) {}
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virtual ~D3D9SurfaceImage() {}
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// Copies the surface into a sharable texture's surface, and initializes
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// the image.
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HRESULT SetData(const Data& aData);
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// Returns the description of the shared surface.
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const D3DSURFACE_DESC& GetDesc() const;
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// Returns the HANDLE that can be used to open the image as a shared resource.
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// If the operation to copy the original resource to the shared resource
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// hasn't finished yet, this function blocks until the synchronization is
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// complete.
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HANDLE GetShareHandle();
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gfxIntSize GetSize() MOZ_OVERRIDE;
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already_AddRefed<gfxASurface> GetAsSurface() MOZ_OVERRIDE;
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private:
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// Blocks the calling thread until the copy operation started in SetData()
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// is complete, whereupon the texture is safe to use.
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void EnsureSynchronized();
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gfxIntSize mSize;
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RefPtr<IDirect3DTexture9> mTexture;
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RefPtr<IDirect3DQuery9> mQuery;
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HANDLE mShareHandle;
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D3DSURFACE_DESC mDesc;
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};
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} // namepace layers
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} // namespace mozilla
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#endif // GFX_D3DSURFACEIMAGE_H
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