tor-browser

The Tor Browser
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TextureClientSharedSurface.cpp (2905B)

      1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #include "TextureClientSharedSurface.h"
      8 
      9 #include "GLContext.h"
     10 #include "mozilla/gfx/2D.h"
     11 #include "mozilla/gfx/Logging.h"  // for gfxDebug
     12 #include "mozilla/layers/ISurfaceAllocator.h"
     13 #include "nsThreadUtils.h"
     14 #include "SharedSurface.h"
     15 
     16 #ifdef MOZ_WIDGET_ANDROID
     17 #  include "mozilla/layers/AndroidHardwareBuffer.h"
     18 #endif
     19 
     20 using namespace mozilla::gl;
     21 
     22 namespace mozilla {
     23 namespace layers {
     24 
     25 /* static */
     26 already_AddRefed<TextureClient> SharedSurfaceTextureData::CreateTextureClient(
     27    const layers::SurfaceDescriptor& aDesc, const gfx::SurfaceFormat aFormat,
     28    gfx::IntSize aSize, TextureFlags aFlags, LayersIPCChannel* aAllocator) {
     29  auto data = MakeUnique<SharedSurfaceTextureData>(aDesc, aFormat, aSize);
     30  return TextureClient::CreateWithData(data.release(), aFlags, aAllocator);
     31 }
     32 
     33 SharedSurfaceTextureData::SharedSurfaceTextureData(
     34    const SurfaceDescriptor& desc, const gfx::SurfaceFormat format,
     35    const gfx::IntSize size)
     36    : mDesc(desc), mFormat(format), mSize(size) {}
     37 
     38 SharedSurfaceTextureData::~SharedSurfaceTextureData() = default;
     39 
     40 void SharedSurfaceTextureData::Deallocate(LayersIPCChannel*) {}
     41 
     42 void SharedSurfaceTextureData::FillInfo(TextureData::Info& aInfo) const {
     43  aInfo.size = mSize;
     44  aInfo.format = mFormat;
     45  aInfo.hasSynchronization = false;
     46  aInfo.supportsMoz2D = false;
     47  aInfo.canExposeMappedData = false;
     48 }
     49 
     50 bool SharedSurfaceTextureData::Serialize(SurfaceDescriptor& aOutDescriptor) {
     51  aOutDescriptor = mDesc;
     52  return true;
     53 }
     54 
     55 TextureFlags SharedSurfaceTextureData::GetTextureFlags() const {
     56  TextureFlags flags = TextureFlags::NO_FLAGS;
     57  return flags;
     58 }
     59 
     60 Maybe<uint64_t> SharedSurfaceTextureData::GetBufferId() const {
     61 #ifdef MOZ_WIDGET_ANDROID
     62  if (mDesc.type() ==
     63      SurfaceDescriptor::TSurfaceDescriptorAndroidHardwareBuffer) {
     64    const SurfaceDescriptorAndroidHardwareBuffer& desc =
     65        mDesc.get_SurfaceDescriptorAndroidHardwareBuffer();
     66    return Some(desc.bufferId());
     67  }
     68 #endif
     69  return Nothing();
     70 }
     71 
     72 UniqueFileHandle SharedSurfaceTextureData::GetAcquireFence() {
     73 #ifdef MOZ_WIDGET_ANDROID
     74  if (mDesc.type() ==
     75      SurfaceDescriptor::TSurfaceDescriptorAndroidHardwareBuffer) {
     76    const SurfaceDescriptorAndroidHardwareBuffer& desc =
     77        mDesc.get_SurfaceDescriptorAndroidHardwareBuffer();
     78    RefPtr<AndroidHardwareBuffer> buffer =
     79        AndroidHardwareBufferManager::Get()->GetBuffer(desc.bufferId());
     80    if (!buffer) {
     81      return UniqueFileHandle();
     82    }
     83 
     84    return buffer->GetAcquireFence();
     85  }
     86 #endif
     87  return UniqueFileHandle();
     88 }
     89 
     90 }  // namespace layers
     91 }  // namespace mozilla