1 files changed, 92 insertions, 0 deletions
diff --git a/gfx/layers/client/TextureClientSharedSurface.cpp b/gfx/layers/client/TextureClientSharedSurface.cpp
new file mode 100644
index 0000000000..63b33335d4
--- /dev/null
+++ b/gfx/layers/client/TextureClientSharedSurface.cpp
@@ -0,0 +1,92 @@
+/* -*- 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 "TextureClientSharedSurface.h"
+
+#include "GLContext.h"
+#include "mozilla/gfx/2D.h"
+#include "mozilla/gfx/Logging.h"  // for gfxDebug
+#include "mozilla/layers/ISurfaceAllocator.h"
+#include "mozilla/Unused.h"
+#include "nsThreadUtils.h"
+#include "SharedSurface.h"
+
+#ifdef MOZ_WIDGET_ANDROID
+#  include "mozilla/layers/AndroidHardwareBuffer.h"
+#endif
+
+using namespace mozilla::gl;
+
+namespace mozilla {
+namespace layers {
+
+/* static */
+already_AddRefed<TextureClient> SharedSurfaceTextureData::CreateTextureClient(
+    const layers::SurfaceDescriptor& aDesc, const gfx::SurfaceFormat aFormat,
+    gfx::IntSize aSize, TextureFlags aFlags, LayersIPCChannel* aAllocator) {
+  auto data = MakeUnique<SharedSurfaceTextureData>(aDesc, aFormat, aSize);
+  return TextureClient::CreateWithData(data.release(), aFlags, aAllocator);
+}
+
+SharedSurfaceTextureData::SharedSurfaceTextureData(
+    const SurfaceDescriptor& desc, const gfx::SurfaceFormat format,
+    const gfx::IntSize size)
+    : mDesc(desc), mFormat(format), mSize(size) {}
+
+SharedSurfaceTextureData::~SharedSurfaceTextureData() = default;
+
+void SharedSurfaceTextureData::Deallocate(LayersIPCChannel*) {}
+
+void SharedSurfaceTextureData::FillInfo(TextureData::Info& aInfo) const {
+  aInfo.size = mSize;
+  aInfo.format = mFormat;
+  aInfo.hasSynchronization = false;
+  aInfo.supportsMoz2D = false;
+  aInfo.canExposeMappedData = false;
+}
+
+bool SharedSurfaceTextureData::Serialize(SurfaceDescriptor& aOutDescriptor) {
+  aOutDescriptor = mDesc;
+  return true;
+}
+
+TextureFlags SharedSurfaceTextureData::GetTextureFlags() const {
+  TextureFlags flags = TextureFlags::NO_FLAGS;
+  return flags;
+}
+
+Maybe<uint64_t> SharedSurfaceTextureData::GetBufferId() const {
+#ifdef MOZ_WIDGET_ANDROID
+  if (mDesc.type() ==
+      SurfaceDescriptor::TSurfaceDescriptorAndroidHardwareBuffer) {
+    const SurfaceDescriptorAndroidHardwareBuffer& desc =
+        mDesc.get_SurfaceDescriptorAndroidHardwareBuffer();
+    return Some(desc.bufferId());
+  }
+#endif
+  return Nothing();
+}
+
+mozilla::ipc::FileDescriptor SharedSurfaceTextureData::GetAcquireFence() {
+#ifdef MOZ_WIDGET_ANDROID
+  if (mDesc.type() ==
+      SurfaceDescriptor::TSurfaceDescriptorAndroidHardwareBuffer) {
+    const SurfaceDescriptorAndroidHardwareBuffer& desc =
+        mDesc.get_SurfaceDescriptorAndroidHardwareBuffer();
+    RefPtr<AndroidHardwareBuffer> buffer =
+        AndroidHardwareBufferManager::Get()->GetBuffer(desc.bufferId());
+    if (!buffer) {
+      return ipc::FileDescriptor();
+    }
+
+    return buffer->GetAcquireFence();
+  }
+#endif
+  return ipc::FileDescriptor();
+}
+
+}  // namespace layers
+}  // namespace mozilla