diff options
Diffstat (limited to 'src/libcamera/request.cpp')
| -rw-r--r-- | src/libcamera/request.cpp | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/src/libcamera/request.cpp b/src/libcamera/request.cpp index 60b30692..ae8b1660 100644 --- a/src/libcamera/request.cpp +++ b/src/libcamera/request.cpp @@ -38,6 +38,15 @@ LOG_DEFINE_CATEGORY(Request) */ /** + * \enum Request::ReuseFlag + * Flags to control the behavior of Request::reuse() + * \var Request::Default + * Don't reuse buffers + * \var Request::ReuseBuffers + * Reuse the buffers that were previously added by addBuffer() + */ + +/** * \typedef Request::BufferMap * \brief A map of Stream to FrameBuffer pointers */ @@ -86,6 +95,35 @@ Request::~Request() } /** + * \brief Reset the request for reuse + * \param[in] flags Indicate whether or not to reuse the buffers + * + * Reset the status and controls associated with the request, to allow it to + * be reused and requeued without destruction. This function shall be called + * prior to queueing the request to the camera, in lieu of constructing a new + * request. The application can reuse the buffers that were previously added + * to the request via addBuffer() by setting \a flags to ReuseBuffers. + */ +void Request::reuse(ReuseFlag flags) +{ + pending_.clear(); + if (flags & ReuseBuffers) { + for (auto pair : bufferMap_) { + pair.second->request_ = this; + pending_.insert(pair.second); + } + } else { + bufferMap_.clear(); + } + + status_ = RequestPending; + cancelled_ = false; + + controls_->clear(); + metadata_->clear(); +} + +/** * \fn Request::controls() * \brief Retrieve the request's ControlList * |