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/* 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_;
};
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