1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/layers/D3D9SurfaceImage.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,74 @@
1.4 +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef GFX_D3DSURFACEIMAGE_H
1.10 +#define GFX_D3DSURFACEIMAGE_H
1.11 +
1.12 +#include "mozilla/RefPtr.h"
1.13 +#include "ImageContainer.h"
1.14 +#include "nsAutoPtr.h"
1.15 +#include "d3d9.h"
1.16 +
1.17 +namespace mozilla {
1.18 +namespace layers {
1.19 +
1.20 +// Image class that wraps a IDirect3DSurface9. This class copies the image
1.21 +// passed into SetData(), so that it can be accessed from other D3D devices.
1.22 +// This class also manages the synchronization of the copy, to ensure the
1.23 +// resource is ready to use.
1.24 +class D3D9SurfaceImage : public Image
1.25 + , public ISharedImage {
1.26 +public:
1.27 +
1.28 + struct Data {
1.29 + Data(IDirect3DSurface9* aSurface, const nsIntRect& aRegion)
1.30 + : mSurface(aSurface), mRegion(aRegion) {}
1.31 + RefPtr<IDirect3DSurface9> mSurface;
1.32 + nsIntRect mRegion;
1.33 + };
1.34 +
1.35 + D3D9SurfaceImage();
1.36 + virtual ~D3D9SurfaceImage();
1.37 +
1.38 + virtual ISharedImage* AsSharedImage() MOZ_OVERRIDE { return this; }
1.39 +
1.40 + // Copies the surface into a sharable texture's surface, and initializes
1.41 + // the image.
1.42 + HRESULT SetData(const Data& aData);
1.43 +
1.44 + // Returns the description of the shared surface.
1.45 + const D3DSURFACE_DESC& GetDesc() const;
1.46 +
1.47 + // Returns the HANDLE that can be used to open the image as a shared resource.
1.48 + // If the operation to copy the original resource to the shared resource
1.49 + // hasn't finished yet, this function blocks until the synchronization is
1.50 + // complete.
1.51 + HANDLE GetShareHandle();
1.52 +
1.53 + gfx::IntSize GetSize() MOZ_OVERRIDE;
1.54 +
1.55 + virtual TemporaryRef<gfx::SourceSurface> GetAsSourceSurface() MOZ_OVERRIDE;
1.56 +
1.57 + virtual TextureClient* GetTextureClient(CompositableClient* aClient) MOZ_OVERRIDE;
1.58 + virtual uint8_t* GetBuffer() MOZ_OVERRIDE { return nullptr; }
1.59 +
1.60 +private:
1.61 +
1.62 + // Blocks the calling thread until the copy operation started in SetData()
1.63 + // is complete, whereupon the texture is safe to use.
1.64 + void EnsureSynchronized();
1.65 +
1.66 + gfx::IntSize mSize;
1.67 + RefPtr<IDirect3DTexture9> mTexture;
1.68 + RefPtr<IDirect3DQuery9> mQuery;
1.69 + RefPtr<TextureClient> mTextureClient;
1.70 + HANDLE mShareHandle;
1.71 + D3DSURFACE_DESC mDesc;
1.72 +};
1.73 +
1.74 +} // namepace layers
1.75 +} // namespace mozilla
1.76 +
1.77 +#endif // GFX_D3DSURFACEIMAGE_H
