import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

gfx/layers/composite/X11TextureHost.cpp

@@ -0,0 +1,107 @@
+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * 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/X11TextureSourceBasic.h"
+#ifdef GL_PROVIDER_GLX
+#include "mozilla/layers/CompositorOGL.h"
+#include "mozilla/layers/X11TextureSourceOGL.h"
+#endif
+#include "gfxXlibSurface.h"
+#include "gfx2DGlue.h"
+
+namespace mozilla {
+namespace layers {
+
+using namespace mozilla::gfx;
+
+X11TextureHost::X11TextureHost(TextureFlags aFlags,
+                               const SurfaceDescriptorX11& aDescriptor)
+ : TextureHost(aFlags)
+{
+  RefPtr<gfxXlibSurface> surface = aDescriptor.OpenForeign();
+  mSurface = surface.get();
+
+  if (!(aFlags & TextureFlags::DEALLOCATE_CLIENT)) {
+    mSurface->TakePixmap();
+  }
+}
+
+bool
+X11TextureHost::Lock()
+{
+  if (!mCompositor) {
+    return false;
+  }
+
+  if (!mTextureSource) {
+    switch (mCompositor->GetBackendType()) {
+      case LayersBackend::LAYERS_BASIC:
+        mTextureSource =
+          new X11TextureSourceBasic(mCompositor->AsBasicCompositor(), mSurface);
+        break;
+#ifdef GL_PROVIDER_GLX
+      case LayersBackend::LAYERS_OPENGL:
+        mTextureSource =
+          new X11TextureSourceOGL(mCompositor->AsCompositorOGL(), mSurface);
+        break;
+#endif
+      default:
+        return false;
+    }
+  }
+
+  return true;
+}
+
+void
+X11TextureHost::SetCompositor(Compositor* aCompositor)
+{
+  mCompositor = aCompositor;
+  if (mTextureSource) {
+    mTextureSource->SetCompositor(aCompositor);
+  }
+}
+
+SurfaceFormat
+X11TextureHost::GetFormat() const
+{
+  gfxContentType type = mSurface->GetContentType();
+#ifdef GL_PROVIDER_GLX
+  if (mCompositor->GetBackendType() == LayersBackend::LAYERS_OPENGL) {
+    return X11TextureSourceOGL::ContentTypeToSurfaceFormat(type);
+  }
+#endif
+  return X11TextureSourceBasic::ContentTypeToSurfaceFormat(type);
+}
+
+IntSize
+X11TextureHost::GetSize() const
+{
+  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();
+}
+
+}
+}