当前位置: 首页>>代码示例>>C++>>正文

C++ Image::AsSharedImage方法代码示例

本文整理汇总了C++中Image::AsSharedImage方法的典型用法代码示例。如果您正苦于以下问题：C++ Image::AsSharedImage方法的具体用法？C++ Image::AsSharedImage怎么用？C++ Image::AsSharedImage使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Image的用法示例。


在下文中一共展示了Image::AsSharedImage方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: autoLock

bool
ImageClientSingle::UpdateImageInternal(ImageContainer* aContainer,
                                       uint32_t aContentFlags, bool* aIsSwapped)
{
  AutoLockImage autoLock(aContainer);
  *aIsSwapped = false;

  Image *image = autoLock.GetImage();
  if (!image) {
    return false;
  }

  if (mLastPaintedImageSerial == image->GetSerial()) {
    return true;
  }

  if (image->AsSharedImage() && image->AsSharedImage()->GetTextureClient(this)) {
    // fast path: no need to allocate and/or copy image data
    RefPtr<TextureClient> texture = image->AsSharedImage()->GetTextureClient(this);


    if (mFrontBuffer) {
      GetForwarder()->RemoveTextureFromCompositable(this, mFrontBuffer);
    }
    mFrontBuffer = texture;
    if (!AddTextureClient(texture)) {
      mFrontBuffer = nullptr;
      return false;
    }
    GetForwarder()->UpdatedTexture(this, texture, nullptr);
    GetForwarder()->UseTexture(this, texture);
  } else if (image->GetFormat() == ImageFormat::PLANAR_YCBCR) {
    PlanarYCbCrImage* ycbcr = static_cast<PlanarYCbCrImage*>(image);
    const PlanarYCbCrData* data = ycbcr->GetData();
    if (!data) {
      return false;
    }

    if (mFrontBuffer && mFrontBuffer->IsImmutable()) {
      GetForwarder()->RemoveTextureFromCompositable(this, mFrontBuffer);
      mFrontBuffer = nullptr;
    }

    bool bufferCreated = false;
    if (!mFrontBuffer) {
      mFrontBuffer = CreateBufferTextureClient(gfx::SurfaceFormat::YUV, TEXTURE_FLAGS_DEFAULT);
      gfx::IntSize ySize(data->mYSize.width, data->mYSize.height);
      gfx::IntSize cbCrSize(data->mCbCrSize.width, data->mCbCrSize.height);
      if (!mFrontBuffer->AsTextureClientYCbCr()->AllocateForYCbCr(ySize, cbCrSize, data->mStereoMode)) {
        mFrontBuffer = nullptr;
        return false;
      }
      bufferCreated = true;
    }

    if (!mFrontBuffer->Lock(OPEN_WRITE_ONLY)) {
      return false;
    }
    bool status = mFrontBuffer->AsTextureClientYCbCr()->UpdateYCbCr(*data);
    mFrontBuffer->Unlock();

    if (bufferCreated) {
      if (!AddTextureClient(mFrontBuffer)) {
        mFrontBuffer = nullptr;
        return false;
      }
    }

    if (status) {
      GetForwarder()->UpdatedTexture(this, mFrontBuffer, nullptr);
      GetForwarder()->UseTexture(this, mFrontBuffer);
    } else {
      MOZ_ASSERT(false);
      return false;
    }

  } else if (image->GetFormat() == ImageFormat::SHARED_TEXTURE) {
    SharedTextureImage* sharedImage = static_cast<SharedTextureImage*>(image);
    const SharedTextureImage::Data *data = sharedImage->GetData();
    gfx::IntSize size = gfx::IntSize(image->GetSize().width, image->GetSize().height);

    if (mFrontBuffer) {
      GetForwarder()->RemoveTextureFromCompositable(this, mFrontBuffer);
      mFrontBuffer = nullptr;
    }

    RefPtr<SharedTextureClientOGL> buffer = new SharedTextureClientOGL(mTextureFlags);
    buffer->InitWith(data->mHandle, size, data->mShareType, data->mInverted);
    mFrontBuffer = buffer;
    if (!AddTextureClient(mFrontBuffer)) {
      mFrontBuffer = nullptr;
      return false;
    }

    GetForwarder()->UseTexture(this, mFrontBuffer);
  } else {
    RefPtr<gfx::SourceSurface> surface = image->GetAsSourceSurface();
    MOZ_ASSERT(surface);

    gfx::IntSize size = image->GetSize();
//.........这里部分代码省略.........
开发者ID:PatMart，项目名称:gecko-dev，代码行数:101，代码来源:ImageClient.cpp

示例2: autoLock

bool
ImageClientSingle::UpdateImage(ImageContainer* aContainer, uint32_t aContentFlags)
{
  AutoLockImage autoLock(aContainer);

  Image *image = autoLock.GetImage();
  if (!image) {
    return false;
  }

  if (mLastPaintedImageSerial == image->GetSerial()) {
    return true;
  }

  RefPtr<TextureClient> texture = image->AsSharedImage()
                                ? image->AsSharedImage()->GetTextureClient(this)
                                : nullptr;

  AutoRemoveTexture autoRemoveTexture(this);
  if (texture != mFrontBuffer) {
    autoRemoveTexture.mTexture = mFrontBuffer;
    mFrontBuffer = nullptr;
  }

  if (!texture) {
    // Slow path, we should not be hitting it very often and if we do it means
    // we are using an Image class that is not backed by textureClient and we
    // should fix it.
    if (image->GetFormat() == ImageFormat::PLANAR_YCBCR) {
      PlanarYCbCrImage* ycbcr = static_cast<PlanarYCbCrImage*>(image);
      const PlanarYCbCrData* data = ycbcr->GetData();
      if (!data) {
        return false;
      }
      texture = TextureClient::CreateForYCbCr(GetForwarder(),
        data->mYSize, data->mCbCrSize, data->mStereoMode,
        TextureFlags::DEFAULT | mTextureFlags
      );
      if (!texture || !texture->Lock(OpenMode::OPEN_WRITE_ONLY)) {
        return false;
      }
      bool status = texture->AsTextureClientYCbCr()->UpdateYCbCr(*data);
      MOZ_ASSERT(status);

      texture->Unlock();
      if (!status) {
        return false;
      }

    } else if (image->GetFormat() == ImageFormat::SURFACE_TEXTURE ||
               image->GetFormat() == ImageFormat::EGLIMAGE) {
      gfx::IntSize size = image->GetSize();

      if (image->GetFormat() == ImageFormat::EGLIMAGE) {
        EGLImageImage* typedImage = static_cast<EGLImageImage*>(image);
        texture = new EGLImageTextureClient(mTextureFlags,
                                           typedImage,
                                           size);
#ifdef MOZ_WIDGET_ANDROID
      } else if (image->GetFormat() == ImageFormat::SURFACE_TEXTURE) {
        SurfaceTextureImage* typedImage = static_cast<SurfaceTextureImage*>(image);
        const SurfaceTextureImage::Data* data = typedImage->GetData();
        texture = new SurfaceTextureClient(mTextureFlags, data->mSurfTex,
                                          size, data->mInverted);
#endif
      } else {
        MOZ_ASSERT(false, "Bad ImageFormat.");
      }
    } else {
      RefPtr<gfx::SourceSurface> surface = image->GetAsSourceSurface();
      MOZ_ASSERT(surface);
      texture = CreateTextureClientForDrawing(surface->GetFormat(), image->GetSize(),
                                              gfx::BackendType::NONE, mTextureFlags);
      if (!texture) {
        return false;
      }

      MOZ_ASSERT(texture->CanExposeDrawTarget());

      if (!texture->Lock(OpenMode::OPEN_WRITE_ONLY)) {
        return false;
      }

      {
        // We must not keep a reference to the DrawTarget after it has been unlocked.
        DrawTarget* dt = texture->BorrowDrawTarget();
        MOZ_ASSERT(surface.get());
        dt->CopySurface(surface, IntRect(IntPoint(), surface->GetSize()), IntPoint());
      }

      texture->Unlock();
    }
  }
  if (!texture || !AddTextureClient(texture)) {
    return false;
  }

  mFrontBuffer = texture;
  GetForwarder()->UpdatedTexture(this, texture, nullptr);
  GetForwarder()->UseTexture(this, texture);
//.........这里部分代码省略.........
开发者ID:dirkschulze，项目名称:gecko-dev，代码行数:101，代码来源:ImageClient.cpp

示例3: autoLock

bool
ImageClientSingle::UpdateImage(ImageContainer* aContainer,
                               uint32_t aContentFlags)
{
  AutoLockImage autoLock(aContainer);

  Image *image = autoLock.GetImage();
  if (!image) {
    return false;
  }

  if (mLastPaintedImageSerial == image->GetSerial()) {
    return true;
  }

  if (image->AsSharedImage() && image->AsSharedImage()->GetTextureClient()) {
    // fast path: no need to allocate and/or copy image data
    RefPtr<TextureClient> texture = image->AsSharedImage()->GetTextureClient();

    if (texture->IsSharedWithCompositor()) {
      // XXX - temporary fix for bug 911941
      // This will be changed with bug 912907
      return false;
    }

    if (mFrontBuffer) {
      RemoveTextureClient(mFrontBuffer);
    }
    mFrontBuffer = texture;
    AddTextureClient(texture);
    GetForwarder()->UpdatedTexture(this, texture, nullptr);
    GetForwarder()->UseTexture(this, texture);
  } else if (image->GetFormat() == PLANAR_YCBCR) {
    PlanarYCbCrImage* ycbcr = static_cast<PlanarYCbCrImage*>(image);
    const PlanarYCbCrData* data = ycbcr->GetData();
    if (!data) {
      return false;
    }

    if (mFrontBuffer && mFrontBuffer->IsImmutable()) {
      RemoveTextureClient(mFrontBuffer);
      mFrontBuffer = nullptr;
    }

    bool bufferCreated = false;
    if (!mFrontBuffer) {
      mFrontBuffer = CreateBufferTextureClient(gfx::FORMAT_YUV, TEXTURE_FLAGS_DEFAULT);
      gfx::IntSize ySize(data->mYSize.width, data->mYSize.height);
      gfx::IntSize cbCrSize(data->mCbCrSize.width, data->mCbCrSize.height);
      if (!mFrontBuffer->AsTextureClientYCbCr()->AllocateForYCbCr(ySize, cbCrSize, data->mStereoMode)) {
        mFrontBuffer = nullptr;
        return false;
      }
      bufferCreated = true;
    }

    if (!mFrontBuffer->Lock(OPEN_READ_WRITE)) {
      return false;
    }
    bool status = mFrontBuffer->AsTextureClientYCbCr()->UpdateYCbCr(*data);
    mFrontBuffer->Unlock();

    if (bufferCreated) {
      AddTextureClient(mFrontBuffer);
    }

    if (status) {
      GetForwarder()->UpdatedTexture(this, mFrontBuffer, nullptr);
      GetForwarder()->UseTexture(this, mFrontBuffer);
    } else {
      MOZ_ASSERT(false);
      return false;
    }

  } else if (image->GetFormat() == SHARED_TEXTURE) {
    SharedTextureImage* sharedImage = static_cast<SharedTextureImage*>(image);
    const SharedTextureImage::Data *data = sharedImage->GetData();
    gfx::IntSize size = gfx::IntSize(image->GetSize().width, image->GetSize().height);

    if (mFrontBuffer) {
      RemoveTextureClient(mFrontBuffer);
      mFrontBuffer = nullptr;
    }

    RefPtr<SharedTextureClientOGL> buffer = new SharedTextureClientOGL(mTextureFlags);
    buffer->InitWith(data->mHandle, size, data->mShareType, data->mInverted);
    mFrontBuffer = buffer;

    AddTextureClient(mFrontBuffer);
    GetForwarder()->UseTexture(this, mFrontBuffer);
  } else {
    nsRefPtr<gfxASurface> surface = image->GetAsSurface();
    MOZ_ASSERT(surface);

    gfx::IntSize size = gfx::IntSize(image->GetSize().width, image->GetSize().height);

    if (mFrontBuffer &&
        (mFrontBuffer->IsImmutable() || mFrontBuffer->GetSize() != size)) {
      RemoveTextureClient(mFrontBuffer);
      mFrontBuffer = nullptr;
//.........这里部分代码省略.........
开发者ID:jalbertbowden，项目名称:mozilla-central，代码行数:101，代码来源:ImageClient.cpp


注：本文中的Image::AsSharedImage方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。