示例#1
0
bool
ImageClientOverlay::UpdateImage(ImageContainer* aContainer, uint32_t aContentFlags)
{
  AutoLockImage autoLock(aContainer);

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

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

  AutoRemoveTexture autoRemoveTexture(this);
  if (image->GetFormat() == ImageFormat::OVERLAY_IMAGE) {
    OverlayImage* overlayImage = static_cast<OverlayImage*>(image);
    uint32_t overlayId = overlayImage->GetOverlayId();
    gfx::IntSize size = overlayImage->GetSize();

    OverlaySource source;
    source.handle() = OverlayHandle(overlayId);
    source.size() = size;
    GetForwarder()->UseOverlaySource(this, source);
  }
  UpdatePictureRect(image->GetPictureRect());
  return true;
}
示例#2
0
bool
ImageClientSingle::UpdateImage(ImageContainer* aContainer, uint32_t aContentFlags)
{
  AutoTArray<ImageContainer::OwningImage,4> images;
  uint32_t generationCounter;
  aContainer->GetCurrentImages(&images, &generationCounter);

  if (mLastUpdateGenerationCounter == generationCounter) {
    return true;
  }
  mLastUpdateGenerationCounter = generationCounter;

  for (int32_t i = images.Length() - 1; i >= 0; --i) {
    if (!images[i].mImage->IsValid()) {
      // Don't try to update to an invalid image.
      images.RemoveElementAt(i);
    }
  }
  if (images.IsEmpty()) {
    // This can happen if a ClearAllImages raced with SetCurrentImages from
    // another thread and ClearImagesFromImageBridge ran after the
    // SetCurrentImages call but before UpdateImageClientNow.
    // This can also happen if all images in the list are invalid.
    // We return true because the caller would attempt to recreate the
    // ImageClient otherwise, and that isn't going to help.
    return true;
  }

  nsTArray<Buffer> newBuffers;
  AutoTArray<CompositableForwarder::TimedTextureClient,4> textures;

  for (auto& img : images) {
    Image* image = img.mImage;

#ifdef MOZ_WIDGET_GONK
    if (image->GetFormat() == ImageFormat::OVERLAY_IMAGE) {
      OverlayImage* overlayImage = static_cast<OverlayImage*>(image);
      OverlaySource source;
      if (overlayImage->GetSidebandStream().IsValid()) {
        // Duplicate GonkNativeHandle::NhObj for ipc,
        // since ParamTraits<GonkNativeHandle>::Write() absorbs native_handle_t.
        RefPtr<GonkNativeHandle::NhObj> nhObj = overlayImage->GetSidebandStream().GetDupNhObj();
        GonkNativeHandle handle(nhObj);
        if (!handle.IsValid()) {
          gfxWarning() << "ImageClientSingle::UpdateImage failed in GetDupNhObj";
          return false;
        }
        source.handle() = OverlayHandle(handle);
      } else {
        source.handle() = OverlayHandle(overlayImage->GetOverlayId());
      }
      source.size() = overlayImage->GetSize();
      GetForwarder()->UseOverlaySource(this, source, image->GetPictureRect());
      continue;
    }
#endif

    RefPtr<TextureClient> texture = image->GetTextureClient(this);
    const bool hasTextureClient = !!texture;

    for (int32_t i = mBuffers.Length() - 1; i >= 0; --i) {
      if (mBuffers[i].mImageSerial == image->GetSerial()) {
        if (hasTextureClient) {
          MOZ_ASSERT(image->GetTextureClient(this) == mBuffers[i].mTextureClient);
        } else {
          texture = mBuffers[i].mTextureClient;
        }
        // Remove this element from mBuffers so mBuffers only contains
        // images that aren't present in 'images'
        mBuffers.RemoveElementAt(i);
      }
    }

    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) {
          return false;
        }

        TextureClientAutoLock autoLock(texture, OpenMode::OPEN_WRITE_ONLY);
        if (!autoLock.Succeeded()) {
          return false;
        }

        bool status = UpdateYCbCrTextureClient(texture, *data);
        MOZ_ASSERT(status);
        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 = image->AsEGLImageImage();
          texture = EGLImageTextureData::CreateTextureClient(
            typedImage, size, GetForwarder(), mTextureFlags);
#ifdef MOZ_WIDGET_ANDROID
        } else if (image->GetFormat() == ImageFormat::SURFACE_TEXTURE) {
          SurfaceTextureImage* typedImage = image->AsSurfaceTextureImage();
          texture = AndroidSurfaceTextureData::CreateTextureClient(
            typedImage->GetSurfaceTexture(), size, typedImage->GetOriginPos(),
            GetForwarder(), mTextureFlags
          );
#endif
        } else {
          MOZ_ASSERT(false, "Bad ImageFormat.");
        }
      } else {
        RefPtr<gfx::SourceSurface> surface = image->GetAsSourceSurface();
        MOZ_ASSERT(surface);
        texture = CreateTextureClientForDrawing(surface->GetFormat(), image->GetSize(),
                                                BackendSelector::Content, 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();
          if (!dt) {
            gfxWarning() << "ImageClientSingle::UpdateImage failed in BorrowDrawTarget";
            return false;
          }
          MOZ_ASSERT(surface.get());
          dt->CopySurface(surface, IntRect(IntPoint(), surface->GetSize()), IntPoint());
        }

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


    CompositableForwarder::TimedTextureClient* t = textures.AppendElement();
    t->mTextureClient = texture;
    t->mTimeStamp = img.mTimeStamp;
    t->mPictureRect = image->GetPictureRect();
    t->mFrameID = img.mFrameID;
    t->mProducerID = img.mProducerID;

    Buffer* newBuf = newBuffers.AppendElement();
    newBuf->mImageSerial = image->GetSerial();
    newBuf->mTextureClient = texture;

    texture->SyncWithObject(GetForwarder()->GetSyncObject());
  }

  GetForwarder()->UseTextures(this, textures);

  for (auto& b : mBuffers) {
    RemoveTexture(b.mTextureClient);
  }
  mBuffers.SwapElements(newBuffers);

  return true;
}