D3D11TextureWrapper.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim:set ts=2 sw=2 sts=2 et cindent: */

/* 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 "D3D11TextureWrapper.h"

#include "FFmpegLibWrapper.h"

#include "FFmpegLog.h"

#include "libavutil/frame.h"

#include "mozilla/Assertions.h"

#include "mozilla/Logging.h"

#include "mozilla/gfx/gfxVars.h"

struct ID3D11Texture2D;

extern mozilla::LazyLogModule sFFmpegVideoLog;

#define LOG(...) \

  MOZ_LOG(sFFmpegVideoLog, mozilla::LogLevel::Verbose, (__VA_ARGS__))

namespace mozilla {

D3D11TextureWrapper::D3D11TextureWrapper(AVFrame* aAVFrame,

                                         FFmpegLibWrapper* aLib,

                                         ID3D11Texture2D* aTexture,

                                         unsigned int aArrayIdx,

                                         std::function<void()>&& aReleaseMethod)

    : mLib(aLib),

      mTexture(aTexture),

      mArrayIdx(aArrayIdx),

      mReleaseMethod(std::move(aReleaseMethod)) {

  MOZ_ASSERT(XRE_IsGPUProcess());

  MOZ_ASSERT(gfx::gfxVars::HwDecodedVideoZeroCopy());

  MOZ_ASSERT(mLib);

  MOZ_ASSERT(aAVFrame);

  MOZ_ASSERT(aTexture);

  mHWAVBuffer = aLib->av_buffer_ref(aAVFrame->buf[0]);

  MOZ_ASSERT(mHWAVBuffer);

  LOG("Locked D3D11 texture %p on index %u", mTexture, mArrayIdx);

D3D11TextureWrapper::~D3D11TextureWrapper() {

  MOZ_ASSERT(XRE_IsGPUProcess());

  MOZ_ASSERT(mLib);

  MOZ_ASSERT(mHWAVBuffer);

  mLib->av_buffer_unref(&mHWAVBuffer);

  mLib = nullptr;

  mReleaseMethod();

  LOG("Unlocked D3D11 texture %p on index %u", mTexture, mArrayIdx);

}  // namespace mozilla

#undef LOG