a42329ba14
HasIntermediateBuffer is always false. It could be removed. Differential Revision: https://phabricator.services.mozilla.com/D131996
139 lines
4.3 KiB
C++
139 lines
4.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "TextureClientSharedSurface.h"
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#include "GLContext.h"
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#include "mozilla/gfx/2D.h"
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#include "mozilla/gfx/Logging.h" // for gfxDebug
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#include "mozilla/layers/ISurfaceAllocator.h"
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#include "mozilla/Unused.h"
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#include "nsThreadUtils.h"
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#include "SharedSurface.h"
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#ifdef MOZ_WIDGET_ANDROID
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# include "mozilla/layers/AndroidHardwareBuffer.h"
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#endif
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using namespace mozilla::gl;
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namespace mozilla {
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namespace layers {
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/* static */
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already_AddRefed<TextureClient> SharedSurfaceTextureData::CreateTextureClient(
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const layers::SurfaceDescriptor& aDesc, const gfx::SurfaceFormat aFormat,
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gfx::IntSize aSize, TextureFlags aFlags, LayersIPCChannel* aAllocator) {
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auto data = MakeUnique<SharedSurfaceTextureData>(aDesc, aFormat, aSize);
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return TextureClient::CreateWithData(data.release(), aFlags, aAllocator);
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}
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SharedSurfaceTextureData::SharedSurfaceTextureData(
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const SurfaceDescriptor& desc, const gfx::SurfaceFormat format,
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const gfx::IntSize size)
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: mDesc(desc), mFormat(format), mSize(size) {}
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SharedSurfaceTextureData::~SharedSurfaceTextureData() = default;
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void SharedSurfaceTextureData::Deallocate(LayersIPCChannel*) {}
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void SharedSurfaceTextureData::FillInfo(TextureData::Info& aInfo) const {
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aInfo.size = mSize;
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aInfo.format = mFormat;
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aInfo.hasSynchronization = false;
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aInfo.supportsMoz2D = false;
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aInfo.canExposeMappedData = false;
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}
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bool SharedSurfaceTextureData::Serialize(SurfaceDescriptor& aOutDescriptor) {
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if (mDesc.type() !=
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SurfaceDescriptor::TSurfaceDescriptorAndroidHardwareBuffer) {
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aOutDescriptor = mDesc;
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return true;
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}
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#ifdef MOZ_WIDGET_ANDROID
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// File descriptor is created heare for reducing its allocation.
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const SurfaceDescriptorAndroidHardwareBuffer& desc =
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mDesc.get_SurfaceDescriptorAndroidHardwareBuffer();
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RefPtr<AndroidHardwareBuffer> buffer =
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AndroidHardwareBufferManager::Get()->GetBuffer(desc.bufferId());
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if (!buffer) {
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return false;
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}
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int fd[2] = {};
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if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, fd) != 0) {
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return false;
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}
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UniqueFileHandle readerFd(fd[0]);
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UniqueFileHandle writerFd(fd[1]);
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// Send the AHardwareBuffer to an AF_UNIX socket. It does not acquire or
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// retain a reference to the buffer object. The caller is therefore
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// responsible for ensuring that the buffer remains alive through the lifetime
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// of this file descriptor.
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int ret = buffer->SendHandleToUnixSocket(writerFd.get());
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if (ret < 0) {
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return false;
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}
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aOutDescriptor = layers::SurfaceDescriptorAndroidHardwareBuffer(
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ipc::FileDescriptor(std::move(readerFd)), buffer->mId, buffer->mSize,
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buffer->mFormat);
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return true;
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#else
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MOZ_ASSERT_UNREACHABLE("unexpected to be called");
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return false;
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#endif
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}
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TextureFlags SharedSurfaceTextureData::GetTextureFlags() const {
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TextureFlags flags = TextureFlags::NO_FLAGS;
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#ifdef MOZ_WIDGET_ANDROID
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if (mDesc.type() ==
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SurfaceDescriptor::TSurfaceDescriptorAndroidHardwareBuffer) {
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flags |= TextureFlags::WAIT_HOST_USAGE_END;
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}
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#endif
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return flags;
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}
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Maybe<uint64_t> SharedSurfaceTextureData::GetBufferId() const {
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#ifdef MOZ_WIDGET_ANDROID
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if (mDesc.type() ==
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SurfaceDescriptor::TSurfaceDescriptorAndroidHardwareBuffer) {
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const SurfaceDescriptorAndroidHardwareBuffer& desc =
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mDesc.get_SurfaceDescriptorAndroidHardwareBuffer();
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return Some(desc.bufferId());
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}
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#endif
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return Nothing();
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}
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mozilla::ipc::FileDescriptor SharedSurfaceTextureData::GetAcquireFence() {
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#ifdef MOZ_WIDGET_ANDROID
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if (mDesc.type() ==
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SurfaceDescriptor::TSurfaceDescriptorAndroidHardwareBuffer) {
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const SurfaceDescriptorAndroidHardwareBuffer& desc =
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mDesc.get_SurfaceDescriptorAndroidHardwareBuffer();
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RefPtr<AndroidHardwareBuffer> buffer =
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AndroidHardwareBufferManager::Get()->GetBuffer(desc.bufferId());
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if (!buffer) {
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return ipc::FileDescriptor();
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}
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return buffer->GetAcquireFence();
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}
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#endif
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return ipc::FileDescriptor();
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}
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} // namespace layers
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} // namespace mozilla
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