import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

gfx/gl/SharedSurfaceD3D11Interop.h

@@ -0,0 +1,100 @@
+/* -*- Mode: c++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 40; -*- */
+/* 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 SHARED_SURFACE_D3D11_INTEROP_H_
+#define SHARED_SURFACE_D3D11_INTEROP_H_
+
+#include <windows.h>
+#include "SharedSurface.h"
+
+namespace mozilla {
+namespace gl {
+
+class DXInterop2Device;
+class GLContext;
+class WGLLibrary;
+
+class SharedSurface_D3D11Interop
+    : public SharedSurface
+{
+public:
+    const GLuint mProdRB;
+    const RefPtr<DXInterop2Device> mInterop;
+    const HANDLE mLockHandle;
+    const RefPtr<ID3D11Texture2D> mTexD3D;
+    const HANDLE mDXGIHandle;
+    const bool mNeedsFinish;
+
+protected:
+    bool mLockedForGL;
+
+public:
+    static UniquePtr<SharedSurface_D3D11Interop> Create(DXInterop2Device* interop,
+                                                        GLContext* gl,
+                                                        const gfx::IntSize& size,
+                                                        bool hasAlpha);
+
+    static SharedSurface_D3D11Interop* Cast(SharedSurface* surf) {
+        MOZ_ASSERT(surf->mType == SharedSurfaceType::DXGLInterop2);
+        return (SharedSurface_D3D11Interop*)surf;
+    }
+
+protected:
+    SharedSurface_D3D11Interop(GLContext* gl,
+                               const gfx::IntSize& size,
+                               bool hasAlpha,
+                               GLuint renderbufferGL,
+                               DXInterop2Device* interop,
+                               HANDLE lockHandle,
+                               ID3D11Texture2D* texD3D,
+                               HANDLE dxgiHandle);
+
+public:
+    virtual ~SharedSurface_D3D11Interop() override;
+
+    virtual void LockProdImpl() override { }
+    virtual void UnlockProdImpl() override { }
+
+    virtual void ProducerAcquireImpl() override;
+    virtual void ProducerReleaseImpl() override;
+
+    virtual GLuint ProdRenderbuffer() override {
+        return mProdRB;
+    }
+
+    virtual bool ToSurfaceDescriptor(layers::SurfaceDescriptor* const out_descriptor) override;
+};
+
+class SurfaceFactory_D3D11Interop
+    : public SurfaceFactory
+{
+public:
+    const RefPtr<DXInterop2Device> mInterop;
+
+    static UniquePtr<SurfaceFactory_D3D11Interop> Create(GLContext* gl,
+                                                         const SurfaceCaps& caps,
+                                                         layers::LayersIPCChannel* allocator,
+                                                         const layers::TextureFlags& flags);
+
+protected:
+    SurfaceFactory_D3D11Interop(GLContext* gl, const SurfaceCaps& caps,
+                                layers::LayersIPCChannel* allocator,
+                                const layers::TextureFlags& flags,
+                                DXInterop2Device* interop);
+
+public:
+    virtual ~SurfaceFactory_D3D11Interop() override;
+
+protected:
+    virtual UniquePtr<SharedSurface> CreateShared(const gfx::IntSize& size) override {
+        bool hasAlpha = mReadCaps.alpha;
+        return SharedSurface_D3D11Interop::Create(mInterop, mGL, size, hasAlpha);
+    }
+};
+
+} /* namespace gl */
+} /* namespace mozilla */
+
+#endif /* SHARED_SURFACE_D3D11_INTEROP_H_ */