DMABUFSurfaceImage.cpp

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/* -*- 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 "DMABUFSurfaceImage.h"

#include "mozilla/widget/DMABufSurface.h"

#include "mozilla/layers/CompositableClient.h"

#include "mozilla/layers/CompositableForwarder.h"

#include "mozilla/layers/DMABUFTextureClientOGL.h"

#include "mozilla/layers/TextureForwarder.h"

#include "mozilla/ScopeExit.h"

#include "mozilla/StaticMutex.h"

#include "GLContext.h"

#include "GLContextProvider.h"

#include "GLBlitHelper.h"

#include "GLReadTexImageHelper.h"

#include "GLContextTypes.h"  // for GLContext, etc

#include "GLContextEGL.h"

#include "GLContextProvider.h"

#include "ScopedGLHelpers.h"

using namespace mozilla;

using namespace mozilla::layers;

using namespace mozilla::gfx;

using namespace mozilla::gl;

#ifdef MOZ_LOGGING

#  undef DMABUF_LOG

extern mozilla::LazyLogModule gDmabufLog;

#  define DMABUF_LOG(str, ...) \

    MOZ_LOG(gDmabufLog, mozilla::LogLevel::Debug, (str, ##__VA_ARGS__))

#else

#  define DMABUF_LOG(args)

#endif /* MOZ_LOGGING */

DMABUFSurfaceImage::DMABUFSurfaceImage(DMABufSurface* aSurface)

    : Image(nullptr, ImageFormat::DMABUF), mSurface(aSurface) {

  DMABUF_LOG("DMABUFSurfaceImage::DMABUFSurfaceImage (%p) aSurface %p UID %d\n",

             this, aSurface, aSurface->GetUID());

  mSurface->GlobalRefAdd();

DMABUFSurfaceImage::~DMABUFSurfaceImage() {

  DMABUF_LOG(

      "DMABUFSurfaceImage::~DMABUFSurfaceImage (%p) mSurface %p UID %d\n", this,

      (void*)mSurface.get(), mSurface->GetUID());

  mSurface->GlobalRefRelease();

already_AddRefed<gfx::SourceSurface> DMABUFSurfaceImage::GetAsSourceSurface() {

  return mSurface->GetAsSourceSurface();

nsresult DMABUFSurfaceImage::BuildSurfaceDescriptorBuffer(

    SurfaceDescriptorBuffer& aSdBuffer, BuildSdbFlags aFlags,

    const std::function<MemoryOrShmem(uint32_t)>& aAllocate) {

  return mSurface->BuildSurfaceDescriptorBuffer(aSdBuffer, aFlags, aAllocate);

TextureClient* DMABUFSurfaceImage::GetTextureClient(

    KnowsCompositor* aKnowsCompositor) {

  if (!mTextureClient) {

    BackendType backend = BackendType::NONE;

    mTextureClient = TextureClient::CreateWithData(

        DMABUFTextureData::Create(mSurface, backend), TextureFlags::DEFAULT,

        aKnowsCompositor->GetTextureForwarder());

  return mTextureClient;

gfx::IntSize DMABUFSurfaceImage::GetSize() const {

  return gfx::IntSize::Truncate(mSurface->GetWidth(), mSurface->GetHeight());