1 files changed, 103 insertions, 0 deletions
diff --git a/gfx/layers/composite/X11TextureHost.cpp b/gfx/layers/composite/X11TextureHost.cpp
new file mode 100644
index 0000000000..5bbb7a82c8
--- /dev/null
+++ b/gfx/layers/composite/X11TextureHost.cpp
@@ -0,0 +1,103 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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 "X11TextureHost.h"
+
+#include "mozilla/layers/BasicCompositor.h"
+#include "mozilla/layers/CompositorOGL.h"
+#include "mozilla/layers/X11TextureSourceBasic.h"
+#include "mozilla/layers/X11TextureSourceOGL.h"
+#include "gfx2DGlue.h"
+#include "gfxPlatform.h"
+#include "gfxXlibSurface.h"
+
+namespace mozilla::layers {
+
+using namespace mozilla::gfx;
+
+X11TextureHost::X11TextureHost(TextureFlags aFlags,
+                               const SurfaceDescriptorX11& aDescriptor)
+    : TextureHost(aFlags) {
+  mSurface = aDescriptor.OpenForeign();
+
+  if (mSurface && !(aFlags & TextureFlags::DEALLOCATE_CLIENT)) {
+    mSurface->TakePixmap();
+  }
+}
+
+bool X11TextureHost::Lock() {
+  if (!mCompositor || !mSurface) {
+    return false;
+  }
+
+  if (!mTextureSource) {
+    switch (mCompositor->GetBackendType()) {
+      case LayersBackend::LAYERS_BASIC:
+        mTextureSource = new X11TextureSourceBasic(
+            mCompositor->AsBasicCompositor(), mSurface);
+        break;
+      case LayersBackend::LAYERS_OPENGL:
+        mTextureSource =
+            new X11TextureSourceOGL(mCompositor->AsCompositorOGL(), mSurface);
+        break;
+      default:
+        return false;
+    }
+  }
+
+  return true;
+}
+
+void X11TextureHost::SetTextureSourceProvider(
+    TextureSourceProvider* aProvider) {
+  mProvider = aProvider;
+  if (mProvider) {
+    mCompositor = mProvider->AsCompositor();
+  } else {
+    mCompositor = nullptr;
+  }
+  if (mTextureSource) {
+    mTextureSource->SetTextureSourceProvider(aProvider);
+  }
+}
+
+SurfaceFormat X11TextureHost::GetFormat() const {
+  if (!mSurface) {
+    return SurfaceFormat::UNKNOWN;
+  }
+  gfxContentType type = mSurface->GetContentType();
+  if (mCompositor->GetBackendType() == LayersBackend::LAYERS_OPENGL) {
+    return X11TextureSourceOGL::ContentTypeToSurfaceFormat(type);
+  }
+  return X11TextureSourceBasic::ContentTypeToSurfaceFormat(type);
+}
+
+IntSize X11TextureHost::GetSize() const {
+  if (!mSurface) {
+    return IntSize();
+  }
+  return mSurface->GetSize();
+}
+
+already_AddRefed<gfx::DataSourceSurface> X11TextureHost::GetAsSurface() {
+  if (!mTextureSource || !mTextureSource->AsSourceBasic()) {
+    return nullptr;
+  }
+  RefPtr<DrawTarget> tempDT =
+      gfxPlatform::GetPlatform()->CreateOffscreenContentDrawTarget(GetSize(),
+                                                                   GetFormat());
+  if (!tempDT) {
+    return nullptr;
+  }
+  RefPtr<SourceSurface> surf =
+      mTextureSource->AsSourceBasic()->GetSurface(tempDT);
+  if (!surf) {
+    return nullptr;
+  }
+  return surf->GetDataSurface();
+}
+
+}  // namespace mozilla::layers