Add m-esr52 at 52.6.0

1 files changed, 425 insertions, 0 deletions

diff --git a/gfx/gl/SharedSurfaceD3D11Interop.cpp b/gfx/gl/SharedSurfaceD3D11Interop.cpp
new file mode 100644
index 000000000..e667005d8
--- /dev/null
+++ b/gfx/gl/SharedSurfaceD3D11Interop.cpp
@@ -0,0 +1,425 @@
+/* -*- 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/. */
+
+#include "SharedSurfaceD3D11Interop.h"
+
+#include <d3d11.h>
+#include "gfxPrefs.h"
+#include "GLContext.h"
+#include "WGLLibrary.h"
+#include "nsPrintfCString.h"
+#include "mozilla/gfx/DeviceManagerDx.h"
+
+namespace mozilla {
+namespace gl {
+
+/*
+Sample Code for WGL_NV_DX_interop2:
+Example: Render to Direct3D 11 backbuffer with openGL:
+
+// create D3D11 device, context and swap chain.
+ID3D11Device *device;
+ID3D11DeviceContext *devCtx;
+IDXGISwapChain *swapChain;
+
+DXGI_SWAP_CHAIN_DESC scd;
+
+<set appropriate swap chain parameters in scd>
+
+hr = D3D11CreateDeviceAndSwapChain(NULL,                        // pAdapter
+                                   D3D_DRIVER_TYPE_HARDWARE,    // DriverType
+                                   NULL,                        // Software
+                                   0,                           // Flags (Do not set D3D11_CREATE_DEVICE_SINGLETHREADED)
+                                   NULL,                        // pFeatureLevels
+                                   0,                           // FeatureLevels
+                                   D3D11_SDK_VERSION,           // SDKVersion
+                                   &scd,                        // pSwapChainDesc
+                                   &swapChain,                  // ppSwapChain
+                                   &device,                     // ppDevice
+                                   NULL,                        // pFeatureLevel
+                                   &devCtx);                    // ppImmediateContext
+
+// Fetch the swapchain backbuffer
+ID3D11Texture2D *dxColorbuffer;
+swapChain->GetBuffer(0, __uuidof(ID3D11Texture2D), (LPVOID *)&dxColorbuffer);
+
+// Create depth stencil texture
+ID3D11Texture2D *dxDepthBuffer;
+D3D11_TEXTURE2D_DESC depthDesc;
+depthDesc.Usage = D3D11_USAGE_DEFAULT;
+<set other depthDesc parameters appropriately>
+
+// Create Views
+ID3D11RenderTargetView *colorBufferView;
+D3D11_RENDER_TARGET_VIEW_DESC rtd;
+<set rtd parameters appropriately>
+device->CreateRenderTargetView(dxColorbuffer, &rtd, &colorBufferView);
+
+ID3D11DepthStencilView *depthBufferView;
+D3D11_DEPTH_STENCIL_VIEW_DESC dsd;
+<set dsd parameters appropriately>
+device->CreateDepthStencilView(dxDepthBuffer, &dsd, &depthBufferView);
+
+// Attach back buffer and depth texture to redertarget for the device.
+devCtx->OMSetRenderTargets(1, &colorBufferView, depthBufferView);
+
+// Register D3D11 device with GL
+HANDLE gl_handleD3D;
+gl_handleD3D = wglDXOpenDeviceNV(device);
+
+// register the Direct3D color and depth/stencil buffers as
+// renderbuffers in opengl
+GLuint gl_names[2];
+HANDLE gl_handles[2];
+
+glGenRenderbuffers(2, gl_names);
+
+gl_handles[0] = wglDXRegisterObjectNV(gl_handleD3D, dxColorBuffer,
+                                      gl_names[0],
+                                      GL_RENDERBUFFER,
+                                      WGL_ACCESS_READ_WRITE_NV);
+
+gl_handles[1] = wglDXRegisterObjectNV(gl_handleD3D, dxDepthBuffer,
+                                      gl_names[1],
+                                      GL_RENDERBUFFER,
+                                      WGL_ACCESS_READ_WRITE_NV);
+
+// attach the Direct3D buffers to an FBO
+glBindFramebuffer(GL_FRAMEBUFFER, fbo);
+glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
+                          GL_RENDERBUFFER, gl_names[0]);
+glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT,
+                          GL_RENDERBUFFER, gl_names[1]);
+glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT,
+                          GL_RENDERBUFFER, gl_names[1]);
+
+while (!done) {
+      <direct3d renders to the render targets>
+
+      // lock the render targets for GL access
+      wglDXLockObjectsNVX(gl_handleD3D, 2, gl_handles);
+
+      <opengl renders to the render targets>
+
+      // unlock the render targets
+      wglDXUnlockObjectsNVX(gl_handleD3D, 2, gl_handles);
+
+      <direct3d renders to the render targets and presents
+       the results on the screen>
+}
+*/
+
+////////////////////////////////////////////////////////////////////////////////
+// DXInterop2Device
+
+class DXInterop2Device : public RefCounted<DXInterop2Device>
+{
+public:
+    MOZ_DECLARE_REFCOUNTED_TYPENAME(DXInterop2Device)
+
+    WGLLibrary* const mWGL;
+    const RefPtr<ID3D11Device> mD3D; // Only needed for lifetime guarantee.
+    const HANDLE mInteropDevice;
+    GLContext* const mGL;
+
+    static already_AddRefed<DXInterop2Device> Open(WGLLibrary* wgl, GLContext* gl)
+    {
+        MOZ_ASSERT(wgl->HasDXInterop2());
+
+        const RefPtr<ID3D11Device> d3d = gfx::DeviceManagerDx::Get()->GetContentDevice();
+        if (!d3d) {
+            gfxCriticalNote << "DXInterop2Device::Open: Failed to create D3D11 device.";
+            return nullptr;
+        }
+
+        if (!gl->MakeCurrent())
+            return nullptr;
+
+        const auto interopDevice = wgl->fDXOpenDevice(d3d);
+        if (!interopDevice) {
+            gfxCriticalNote << "DXInterop2Device::Open: DXOpenDevice failed.";
+            return nullptr;
+        }
+
+        return MakeAndAddRef<DXInterop2Device>(wgl, d3d, interopDevice, gl);
+    }
+
+    DXInterop2Device(WGLLibrary* wgl, ID3D11Device* d3d, HANDLE interopDevice,
+                     GLContext* gl)
+        : mWGL(wgl)
+        , mD3D(d3d)
+        , mInteropDevice(interopDevice)
+        , mGL(gl)
+    { }
+
+    ~DXInterop2Device() {
+        const auto isCurrent = mGL->MakeCurrent();
+
+        if (mWGL->fDXCloseDevice(mInteropDevice))
+            return;
+
+        if (isCurrent) {
+            // That shouldn't have failed.
+            const uint32_t error = GetLastError();
+            const nsPrintfCString errorMessage("wglDXCloseDevice(0x%p) failed:"
+                                               " GetLastError(): %u\n",
+                                               mInteropDevice, error);
+            gfxCriticalError() << errorMessage.BeginReading();
+        }
+    }
+
+    HANDLE RegisterObject(void* d3dObject, GLuint name, GLenum type,
+                          GLenum access) const
+    {
+        if (!mGL->MakeCurrent())
+            return nullptr;
+
+        const auto ret = mWGL->fDXRegisterObject(mInteropDevice, d3dObject, name, type,
+                                                 access);
+        if (ret)
+            return ret;
+
+        const uint32_t error = GetLastError();
+        const nsPrintfCString errorMessage("wglDXRegisterObject(0x%p, 0x%p, %u, 0x%04x,"
+                                           " 0x%04x) failed: GetLastError(): %u\n",
+                                           mInteropDevice, d3dObject, name, type, access,
+                                           error);
+        gfxCriticalNote << errorMessage.BeginReading();
+        return nullptr;
+    }
+
+    bool UnregisterObject(HANDLE lockHandle) const {
+        const auto isCurrent = mGL->MakeCurrent();
+
+        if (mWGL->fDXUnregisterObject(mInteropDevice, lockHandle))
+            return true;
+
+        if (!isCurrent) {
+            // That shouldn't have failed.
+            const uint32_t error = GetLastError();
+            const nsPrintfCString errorMessage("wglDXUnregisterObject(0x%p, 0x%p) failed:"
+                                               " GetLastError(): %u\n",
+                                               mInteropDevice, lockHandle, error);
+            gfxCriticalError() << errorMessage.BeginReading();
+        }
+        return false;
+    }
+
+    bool LockObject(HANDLE lockHandle) const {
+        MOZ_ASSERT(mGL->IsCurrent());
+
+        if (mWGL->fDXLockObjects(mInteropDevice, 1, &lockHandle))
+            return true;
+
+        if (!mGL->MakeCurrent())
+            return false;
+
+        gfxCriticalNote << "wglDXLockObjects called without mGL being current."
+                        << " Retrying after MakeCurrent.";
+
+        if (mWGL->fDXLockObjects(mInteropDevice, 1, &lockHandle))
+            return true;
+
+        const uint32_t error = GetLastError();
+        const nsPrintfCString errorMessage("wglDXLockObjects(0x%p, 1, {0x%p}) failed:"
+                                           " GetLastError(): %u\n",
+                                           mInteropDevice, lockHandle, error);
+        gfxCriticalError() << errorMessage.BeginReading();
+        return false;
+    }
+
+    bool UnlockObject(HANDLE lockHandle) const {
+        MOZ_ASSERT(mGL->IsCurrent());
+
+        if (mWGL->fDXUnlockObjects(mInteropDevice, 1, &lockHandle))
+            return true;
+
+        if (!mGL->MakeCurrent())
+            return false;
+
+        gfxCriticalNote << "wglDXUnlockObjects called without mGL being current."
+                        << " Retrying after MakeCurrent.";
+
+        if (mWGL->fDXUnlockObjects(mInteropDevice, 1, &lockHandle))
+            return true;
+
+        const uint32_t error = GetLastError();
+        const nsPrintfCString errorMessage("wglDXUnlockObjects(0x%p, 1, {0x%p}) failed:"
+                                           " GetLastError(): %u\n",
+                                           mInteropDevice, lockHandle, error);
+        gfxCriticalError() << errorMessage.BeginReading();
+        return false;
+    }
+};
+
+////////////////////////////////////////////////////////////////////////////////
+// Shared Surface
+
+/*static*/ UniquePtr<SharedSurface_D3D11Interop>
+SharedSurface_D3D11Interop::Create(DXInterop2Device* interop,
+                                   GLContext* gl,
+                                   const gfx::IntSize& size,
+                                   bool hasAlpha)
+{
+    const auto& d3d = interop->mD3D;
+
+    // Create a texture in case we need to readback.
+    DXGI_FORMAT format = hasAlpha ? DXGI_FORMAT_B8G8R8A8_UNORM
+                                  : DXGI_FORMAT_B8G8R8X8_UNORM;
+    CD3D11_TEXTURE2D_DESC desc(format, size.width, size.height, 1, 1);
+    desc.MiscFlags = D3D11_RESOURCE_MISC_SHARED_KEYEDMUTEX;
+
+    RefPtr<ID3D11Texture2D> texD3D;
+    auto hr = d3d->CreateTexture2D(&desc, nullptr, getter_AddRefs(texD3D));
+    if (FAILED(hr)) {
+        NS_WARNING("Failed to create texture for CanvasLayer!");
+        return nullptr;
+    }
+
+    RefPtr<IDXGIResource> texDXGI;
+    hr = texD3D->QueryInterface(__uuidof(IDXGIResource), getter_AddRefs(texDXGI));
+    if (FAILED(hr)) {
+        NS_WARNING("Failed to open texture for sharing!");
+        return nullptr;
+    }
+
+    HANDLE dxgiHandle;
+    texDXGI->GetSharedHandle(&dxgiHandle);
+
+    ////
+
+    if (!gl->MakeCurrent()) {
+        NS_WARNING("MakeCurrent failed.");
+        return nullptr;
+    }
+
+    GLuint rbGL = 0;
+    gl->fGenRenderbuffers(1, &rbGL);
+    const auto lockHandle = interop->RegisterObject(texD3D, rbGL, LOCAL_GL_RENDERBUFFER,
+                                                    LOCAL_WGL_ACCESS_WRITE_DISCARD_NV);
+    if (!lockHandle) {
+        NS_WARNING("Failed to register D3D object with WGL.");
+        gl->fDeleteRenderbuffers(1, &rbGL);
+        return nullptr;
+    }
+
+    ////
+
+    typedef SharedSurface_D3D11Interop ptrT;
+    UniquePtr<ptrT> ret ( new ptrT(gl, size, hasAlpha, rbGL, interop, lockHandle,
+                                   texD3D, dxgiHandle) );
+    return Move(ret);
+}
+
+SharedSurface_D3D11Interop::SharedSurface_D3D11Interop(GLContext* gl,
+                                                       const gfx::IntSize& size,
+                                                       bool hasAlpha, GLuint rbGL,
+                                                       DXInterop2Device* interop,
+                                                       HANDLE lockHandle,
+                                                       ID3D11Texture2D* texD3D,
+                                                       HANDLE dxgiHandle)
+    : SharedSurface(SharedSurfaceType::DXGLInterop2,
+                    AttachmentType::GLRenderbuffer,
+                    gl,
+                    size,
+                    hasAlpha,
+                    true)
+    , mProdRB(rbGL)
+    , mInterop(interop)
+    , mLockHandle(lockHandle)
+    , mTexD3D(texD3D)
+    , mDXGIHandle(dxgiHandle)
+    , mNeedsFinish(gfxPrefs::WebGLDXGLNeedsFinish())
+    , mLockedForGL(false)
+{ }
+
+SharedSurface_D3D11Interop::~SharedSurface_D3D11Interop()
+{
+    MOZ_ASSERT(!IsProducerAcquired());
+
+    if (!mGL || !mGL->MakeCurrent())
+        return;
+
+    if (!mInterop->UnregisterObject(mLockHandle)) {
+        NS_WARNING("Failed to release mLockHandle, possibly leaking it.");
+    }
+
+    mGL->fDeleteRenderbuffers(1, &mProdRB);
+}
+
+void
+SharedSurface_D3D11Interop::ProducerAcquireImpl()
+{
+    MOZ_ASSERT(!mLockedForGL);
+
+    // Now we have the mutex, we can lock for GL.
+    MOZ_ALWAYS_TRUE( mInterop->LockObject(mLockHandle) );
+
+    mLockedForGL = true;
+}
+
+void
+SharedSurface_D3D11Interop::ProducerReleaseImpl()
+{
+    MOZ_ASSERT(mLockedForGL);
+
+    if (mNeedsFinish) {
+        mGL->fFinish();
+    } else {
+        // We probably don't even need this.
+        mGL->fFlush();
+    }
+    MOZ_ALWAYS_TRUE( mInterop->UnlockObject(mLockHandle) );
+
+    mLockedForGL = false;
+}
+
+bool
+SharedSurface_D3D11Interop::ToSurfaceDescriptor(layers::SurfaceDescriptor* const out_descriptor)
+{
+    const auto format = (mHasAlpha ? gfx::SurfaceFormat::B8G8R8A8
+                                   : gfx::SurfaceFormat::B8G8R8X8);
+    *out_descriptor = layers::SurfaceDescriptorD3D10(WindowsHandle(mDXGIHandle), format,
+                                                     mSize);
+    return true;
+}
+
+//////////////////////////////////////////////////////////////////////////////////////////
+// Factory
+
+/*static*/ UniquePtr<SurfaceFactory_D3D11Interop>
+SurfaceFactory_D3D11Interop::Create(GLContext* gl, const SurfaceCaps& caps,
+                                    layers::LayersIPCChannel* allocator,
+                                    const layers::TextureFlags& flags)
+{
+    WGLLibrary* wgl = &sWGLLib;
+    if (!wgl || !wgl->HasDXInterop2())
+        return nullptr;
+
+    const RefPtr<DXInterop2Device> interop = DXInterop2Device::Open(wgl, gl);
+    if (!interop) {
+        NS_WARNING("Failed to open D3D device for use by WGL.");
+        return nullptr;
+    }
+
+    typedef SurfaceFactory_D3D11Interop ptrT;
+    UniquePtr<ptrT> ret(new ptrT(gl, caps, allocator, flags, interop));
+    return Move(ret);
+}
+
+SurfaceFactory_D3D11Interop::SurfaceFactory_D3D11Interop(GLContext* gl,
+                                                         const SurfaceCaps& caps,
+                                                         layers::LayersIPCChannel* allocator,
+                                                         const layers::TextureFlags& flags,
+                                                         DXInterop2Device* interop)
+    : SurfaceFactory(SharedSurfaceType::DXGLInterop2, gl, caps, allocator, flags)
+    , mInterop(interop)
+{ }
+
+SurfaceFactory_D3D11Interop::~SurfaceFactory_D3D11Interop()
+{ }
+
+} // namespace gl
+} // namespace mozilla