Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 138 insertions, 0 deletions

diff --git a/gfx/layers/client/TextureClientSharedSurface.cpp b/gfx/layers/client/TextureClientSharedSurface.cpp
new file mode 100644
index 0000000000..2de958b298
--- /dev/null
+++ b/gfx/layers/client/TextureClientSharedSurface.cpp
@@ -0,0 +1,138 @@
+/* -*- 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) {
+  if (mDesc.type() !=
+      SurfaceDescriptor::TSurfaceDescriptorAndroidHardwareBuffer) {
+    aOutDescriptor = mDesc;
+    return true;
+  }
+
+#ifdef MOZ_WIDGET_ANDROID
+  // File descriptor is created heare for reducing its allocation.
+  const SurfaceDescriptorAndroidHardwareBuffer& desc =
+      mDesc.get_SurfaceDescriptorAndroidHardwareBuffer();
+  RefPtr<AndroidHardwareBuffer> buffer =
+      AndroidHardwareBufferManager::Get()->GetBuffer(desc.bufferId());
+  if (!buffer) {
+    return false;
+  }
+
+  int fd[2] = {};
+  if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, fd) != 0) {
+    return false;
+  }
+
+  UniqueFileHandle readerFd(fd[0]);
+  UniqueFileHandle writerFd(fd[1]);
+
+  // Send the AHardwareBuffer to an AF_UNIX socket. It does not acquire or
+  // retain a reference to the buffer object. The caller is therefore
+  // responsible for ensuring that the buffer remains alive through the lifetime
+  // of this file descriptor.
+  int ret = buffer->SendHandleToUnixSocket(writerFd.get());
+  if (ret < 0) {
+    return false;
+  }
+
+  aOutDescriptor = layers::SurfaceDescriptorAndroidHardwareBuffer(
+      ipc::FileDescriptor(std::move(readerFd)), buffer->mId, buffer->mSize,
+      buffer->mFormat);
+  return true;
+#else
+  MOZ_ASSERT_UNREACHABLE("unexpected to be called");
+  return false;
+#endif
+}
+
+TextureFlags SharedSurfaceTextureData::GetTextureFlags() const {
+  TextureFlags flags = TextureFlags::NO_FLAGS;
+
+#ifdef MOZ_WIDGET_ANDROID
+  if (mDesc.type() ==
+      SurfaceDescriptor::TSurfaceDescriptorAndroidHardwareBuffer) {
+    flags |= TextureFlags::WAIT_HOST_USAGE_END;
+  }
+#endif
+  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