1 files changed, 88 insertions, 0 deletions
diff --git a/src/core/compositor/native_skia_output_device_direct3d11.cpp b/src/core/compositor/native_skia_output_device_direct3d11.cpp
new file mode 100644
index 000000000..352fa9f92
--- /dev/null
+++ b/src/core/compositor/native_skia_output_device_direct3d11.cpp
@@ -0,0 +1,88 @@
+// Copyright (C) 2024 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#include "native_skia_output_device_direct3d11.h"
+
+#include <QtCore/private/qsystemerror_p.h>
+#include <QtQuick/qquickwindow.h>
+#include <QtQuick/qsgtexture.h>
+
+#include <d3d11_1.h>
+
+namespace QtWebEngineCore {
+
+NativeSkiaOutputDeviceDirect3D11::NativeSkiaOutputDeviceDirect3D11(
+        scoped_refptr<gpu::SharedContextState> contextState, bool requiresAlpha,
+        gpu::MemoryTracker *memoryTracker, viz::SkiaOutputSurfaceDependency *dependency,
+        gpu::SharedImageFactory *shared_image_factory,
+        gpu::SharedImageRepresentationFactory *shared_image_representation_factory,
+        DidSwapBufferCompleteCallback didSwapBufferCompleteCallback)
+    : NativeSkiaOutputDevice(contextState, requiresAlpha, memoryTracker, dependency,
+                             shared_image_factory, shared_image_representation_factory,
+                             didSwapBufferCompleteCallback)
+{
+    SkColorType skColorType = kRGBA_8888_SkColorType;
+    capabilities_.sk_color_types[static_cast<int>(gfx::BufferFormat::RGBA_8888)] = skColorType;
+    capabilities_.sk_color_types[static_cast<int>(gfx::BufferFormat::RGBX_8888)] = skColorType;
+    capabilities_.sk_color_types[static_cast<int>(gfx::BufferFormat::BGRA_8888)] = skColorType;
+    capabilities_.sk_color_types[static_cast<int>(gfx::BufferFormat::BGRX_8888)] = skColorType;
+}
+
+NativeSkiaOutputDeviceDirect3D11::~NativeSkiaOutputDeviceDirect3D11() { }
+
+QSGTexture *NativeSkiaOutputDeviceDirect3D11::texture(QQuickWindow *win, uint32_t textureOptions)
+{
+    if (!m_frontBuffer || !m_readyWithTexture)
+        return nullptr;
+
+    absl::optional<gl::DCLayerOverlayImage> overlayImage = m_frontBuffer->overlayImage();
+    if (!overlayImage) {
+        qWarning("No overlay image.");
+        return nullptr;
+    }
+
+    QSGRendererInterface *ri = win->rendererInterface();
+
+    HRESULT status = S_OK;
+    HANDLE sharedHandle = nullptr;
+    IDXGIResource1 *resource = nullptr;
+    if (!overlayImage->nv12_texture()) {
+        qWarning("No D3D texture.");
+        return nullptr;
+    }
+    status = overlayImage->nv12_texture()->QueryInterface(__uuidof(IDXGIResource1),
+                                                          (void **)&resource);
+    Q_ASSERT(status == S_OK);
+    status = resource->CreateSharedHandle(NULL, DXGI_SHARED_RESOURCE_READ, NULL, &sharedHandle);
+    Q_ASSERT(status == S_OK);
+    Q_ASSERT(sharedHandle);
+
+    // Pass texture between two D3D devices:
+    ID3D11Device1 *device = static_cast<ID3D11Device1 *>(
+            ri->getResource(win, QSGRendererInterface::DeviceResource));
+
+    ID3D11Texture2D *qtTexture;
+    status = device->OpenSharedResource1(sharedHandle, __uuidof(ID3D11Texture2D),
+                                         (void **)&qtTexture);
+    if (status != S_OK) {
+        qWarning("Failed to share D3D11 texture (%s). This will result in failed rendering. Report "
+                 "the bug, and try restarting with QTWEBENGINE_CHROMIUM_FLAGS=--disble-gpu",
+                 qPrintable(QSystemError::windowsComString(status)));
+        ::CloseHandle(sharedHandle);
+        return nullptr;
+    }
+
+    Q_ASSERT(qtTexture);
+    QQuickWindow::CreateTextureOptions texOpts(textureOptions);
+    QSGTexture *texture =
+            QNativeInterface::QSGD3D11Texture::fromNative(qtTexture, win, size(), texOpts);
+
+    m_frontBuffer->textureCleanupCallback = [qtTexture, sharedHandle]() {
+        qtTexture->Release();
+        ::CloseHandle(sharedHandle);
+    };
+
+    return texture;
+}
+
+} // namespace QtWebEngineCore