/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2021, Ideas on Board Oy * * kms_sink.h - KMS Sink */ #pragma once #include <list> #include <memory> #include <mutex> #include <optional> #include <string> #include <utility> #include <libcamera/base/signal.h> #include <libcamera/geometry.h> #include <libcamera/pixel_format.h> #include "drm.h" #include "frame_sink.h" class KMSSink : public FrameSink { public: KMSSink(const std::string &connectorName); void mapBuffer(libcamera::FrameBuffer *buffer) override; int configure(const libcamera::CameraConfiguration &config) override; int start() override; int stop() override; bool processRequest(libcamera::Request *request) override; private: class Request { public: Request(std::unique_ptr<DRM::AtomicRequest> drmRequest, libcamera::Request *camRequest) : drmRequest_(std::move(drmRequest)), camRequest_(camRequest) { } std::unique_ptr<DRM::AtomicRequest> drmRequest_; libcamera::Request *camRequest_; }; int selectPipeline(const libcamera::PixelFormat &format); int configurePipeline(const libcamera::PixelFormat &format); bool testModeSet(DRM::FrameBuffer *drmBuffer, const libcamera::Rectangle &src, const libcamera::Rectangle &dst); bool setupComposition(DRM::FrameBuffer *drmBuffer); void requestComplete(DRM::AtomicRequest *request); DRM::Device dev_; const DRM::Connector *connector_; const DRM::Crtc *crtc_; const DRM::Plane *plane_; const DRM::Mode *mode_; libcamera::PixelFormat format_; libcamera::Size size_; unsigned int stride_; std::optional<unsigned int> colorEncoding_; std::optional<unsigned int> colorRange_; libcamera::Rectangle src_; libcamera::Rectangle dst_; std::map<libcamera::FrameBuffer *, std::unique_ptr<DRM::FrameBuffer>> buffers_; std::mutex lock_; std::unique_ptr<Request> pending_; std::unique_ptr<Request> queued_; std::unique_ptr<Request> active_; };