From d7e0985ce13d094608bec9b496873ae0361ea87d Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Sat, 28 Sep 2019 06:41:22 +0300 Subject: ipa: Allow short-circuiting the ipa_context_ops MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When an IPA module is loaded without isolation and implements the IPAInterface internally, going through ipa_context_ops is a waste of time. Add an operation to retrieve the IPAInterface, and use it directly in the IPAContextWrapper. For debugging purpose, make it possible to forcing usage of the C API by defining the LIBCAMERA_IPA_FORCE_C_API environment variable. Signed-off-by: Laurent Pinchart Signed-off-by: Jacopo Mondi Reviewed-by: Jacopo Mondi Reviewed-by: Niklas Söderlund Reviewed-by: Kieran Bingham --- src/ipa/libipa/ipa_interface_wrapper.cpp | 8 +++++++ src/ipa/libipa/ipa_interface_wrapper.h | 1 + src/libcamera/include/ipa_context_wrapper.h | 4 ++++ src/libcamera/ipa_context_wrapper.cpp | 34 +++++++++++++++++++++++++++-- src/libcamera/ipa_interface.cpp | 18 +++++++++++++++ 5 files changed, 63 insertions(+), 2 deletions(-) (limited to 'src') diff --git a/src/ipa/libipa/ipa_interface_wrapper.cpp b/src/ipa/libipa/ipa_interface_wrapper.cpp index 80c5648f..6a389dfa 100644 --- a/src/ipa/libipa/ipa_interface_wrapper.cpp +++ b/src/ipa/libipa/ipa_interface_wrapper.cpp @@ -72,6 +72,13 @@ void IPAInterfaceWrapper::destroy(struct ipa_context *_ctx) delete ctx; } +void *IPAInterfaceWrapper::get_interface(struct ipa_context *_ctx) +{ + IPAInterfaceWrapper *ctx = static_cast(_ctx); + + return ctx->ipa_.get(); +} + void IPAInterfaceWrapper::init(struct ipa_context *_ctx) { IPAInterfaceWrapper *ctx = static_cast(_ctx); @@ -228,6 +235,7 @@ void IPAInterfaceWrapper::queueFrameAction(unsigned int frame, */ const struct ipa_context_ops IPAInterfaceWrapper::operations_ = { .destroy = &IPAInterfaceWrapper::destroy, + .get_interface = &IPAInterfaceWrapper::get_interface, .init = &IPAInterfaceWrapper::init, .register_callbacks = &IPAInterfaceWrapper::register_callbacks, .configure = &IPAInterfaceWrapper::configure, diff --git a/src/ipa/libipa/ipa_interface_wrapper.h b/src/ipa/libipa/ipa_interface_wrapper.h index 17be2062..3fb7b447 100644 --- a/src/ipa/libipa/ipa_interface_wrapper.h +++ b/src/ipa/libipa/ipa_interface_wrapper.h @@ -22,6 +22,7 @@ public: private: static void destroy(struct ipa_context *ctx); + static void *get_interface(struct ipa_context *ctx); static void init(struct ipa_context *ctx); static void register_callbacks(struct ipa_context *ctx, const struct ipa_callback_ops *callbacks, diff --git a/src/libcamera/include/ipa_context_wrapper.h b/src/libcamera/include/ipa_context_wrapper.h index 06088821..c9e19412 100644 --- a/src/libcamera/include/ipa_context_wrapper.h +++ b/src/libcamera/include/ipa_context_wrapper.h @@ -33,7 +33,11 @@ private: struct ipa_operation_data &data); static const struct ipa_callback_ops callbacks_; + void doQueueFrameAction(unsigned int frame, + const IPAOperationData &data); + struct ipa_context *ctx_; + IPAInterface *intf_; ControlSerializer serializer_; }; diff --git a/src/libcamera/ipa_context_wrapper.cpp b/src/libcamera/ipa_context_wrapper.cpp index 5b1f5972..9603fdac 100644 --- a/src/libcamera/ipa_context_wrapper.cpp +++ b/src/libcamera/ipa_context_wrapper.cpp @@ -12,6 +12,7 @@ #include #include "byte_stream_buffer.h" +#include "utils.h" /** * \file ipa_context_wrapper.h @@ -43,11 +44,19 @@ namespace libcamera { * with it. */ IPAContextWrapper::IPAContextWrapper(struct ipa_context *context) - : ctx_(context) + : ctx_(context), intf_(nullptr) { if (!ctx_) return; + bool forceCApi = !!utils::secure_getenv("LIBCAMERA_IPA_FORCE_C_API"); + + if (!forceCApi && ctx_ && ctx_->ops->get_interface) { + intf_ = reinterpret_cast(ctx_->ops->get_interface(ctx_)); + intf_->queueFrameAction.connect(this, &IPAContextWrapper::doQueueFrameAction); + return; + } + ctx_->ops->register_callbacks(ctx_, &IPAContextWrapper::callbacks_, this); } @@ -62,6 +71,9 @@ IPAContextWrapper::~IPAContextWrapper() int IPAContextWrapper::init() { + if (intf_) + return intf_->init(); + if (!ctx_) return 0; @@ -73,6 +85,9 @@ int IPAContextWrapper::init() void IPAContextWrapper::configure(const std::map &streamConfig, const std::map &entityControls) { + if (intf_) + return intf_->configure(streamConfig, entityControls); + if (!ctx_) return; @@ -123,6 +138,9 @@ void IPAContextWrapper::configure(const std::map &strea void IPAContextWrapper::mapBuffers(const std::vector &buffers) { + if (intf_) + return intf_->mapBuffers(buffers); + if (!ctx_) return; @@ -148,6 +166,9 @@ void IPAContextWrapper::mapBuffers(const std::vector &buffers) void IPAContextWrapper::unmapBuffers(const std::vector &ids) { + if (intf_) + return intf_->unmapBuffers(ids); + if (!ctx_) return; @@ -156,6 +177,9 @@ void IPAContextWrapper::unmapBuffers(const std::vector &ids) void IPAContextWrapper::processEvent(const IPAOperationData &data) { + if (intf_) + return intf_->processEvent(data); + if (!ctx_) return; @@ -189,6 +213,12 @@ void IPAContextWrapper::processEvent(const IPAOperationData &data) ctx_->ops->process_event(ctx_, &c_data); } +void IPAContextWrapper::doQueueFrameAction(unsigned int frame, + const IPAOperationData &data) +{ + IPAInterface::queueFrameAction.emit(frame, data); +} + void IPAContextWrapper::queue_frame_action(void *ctx, unsigned int frame, struct ipa_operation_data &data) { @@ -205,7 +235,7 @@ void IPAContextWrapper::queue_frame_action(void *ctx, unsigned int frame, opData.controls.push_back(_this->serializer_.deserialize(b)); } - _this->queueFrameAction.emit(frame, opData); + _this->doQueueFrameAction(frame, opData); } #ifndef __DOXYGEN__ diff --git a/src/libcamera/ipa_interface.cpp b/src/libcamera/ipa_interface.cpp index cb2767a0..715e7972 100644 --- a/src/libcamera/ipa_interface.cpp +++ b/src/libcamera/ipa_interface.cpp @@ -62,6 +62,12 @@ * handlers to communicate with IPA modules. IPA modules may use the * IPAInterface API internally if they want to benefit from the data and helper * classes offered by libcamera. + * + * When an IPA module is loaded directly into the libcamera process and uses + * the IPAInterface API internally, short-circuiting the path to the + * ipa_context_ops and back to IPAInterface is desirable. To support this, IPA + * modules may implement the ipa_context_ops::get_interface function to return a + * pointer to their internal IPAInterface. */ /** @@ -209,6 +215,18 @@ * \param[in] ctx The IPA context */ +/** + * \var ipa_context_ops::get_interface + * \brief Retrieve the IPAInterface implemented by the ipa_context (optional) + * \param[in] ctx The IPA context + * + * IPA modules may implement this function to expose their internal + * IPAInterface, if any. When implemented, libcamera may at its sole discretion + * call it and then bypass the ipa_context_ops API by calling the IPAInterface + * methods directly. IPA modules shall still implement and support the full + * ipa_context_ops API. + */ + /** * \var ipa_context_ops::init * \brief Initialise the IPA context -- cgit v1.2.1