diff options
author | Naushir Patuck <naush@raspberrypi.com> | 2023-05-03 13:20:27 +0100 |
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committer | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2023-05-04 20:47:40 +0300 |
commit | 726e9274ea95fa46352556d340c5793a8da51fcd (patch) | |
tree | 80f6adcdbf744f9317e09eff3e80c602b384a753 /src/ipa/rpi/controller/rpi/geq.cpp | |
parent | 46aefed208fef4bc8d6f6e8882b92b9af710a60b (diff) |
pipeline: ipa: raspberrypi: Refactor and move the Raspberry Pi code
Split the Raspberry Pi pipeline handler and IPA source code into common
and VC4/BCM2835 specific file structures.
For the pipeline handler, the common code files now live in
src/libcamera/pipeline/rpi/common/
and the VC4-specific files in src/libcamera/pipeline/rpi/vc4/.
For the IPA, the common code files now live in
src/ipa/rpi/{cam_helper,controller}/
and the vc4 specific files in src/ipa/rpi/vc4/. With this change, the
camera tuning files are now installed under share/libcamera/ipa/rpi/vc4/.
To build the pipeline and IPA, the meson configuration options have now
changed from "raspberrypi" to "rpi/vc4":
meson setup build -Dipas=rpi/vc4 -Dpipelines=rpi/vc4
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Diffstat (limited to 'src/ipa/rpi/controller/rpi/geq.cpp')
-rw-r--r-- | src/ipa/rpi/controller/rpi/geq.cpp | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/src/ipa/rpi/controller/rpi/geq.cpp b/src/ipa/rpi/controller/rpi/geq.cpp new file mode 100644 index 00000000..510870e9 --- /dev/null +++ b/src/ipa/rpi/controller/rpi/geq.cpp @@ -0,0 +1,89 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ +/* + * Copyright (C) 2019, Raspberry Pi Ltd + * + * geq.cpp - GEQ (green equalisation) control algorithm + */ + +#include <libcamera/base/log.h> + +#include "../device_status.h" +#include "../lux_status.h" +#include "../pwl.h" + +#include "geq.h" + +using namespace RPiController; +using namespace libcamera; + +LOG_DEFINE_CATEGORY(RPiGeq) + +/* + * We use the lux status so that we can apply stronger settings in darkness (if + * necessary). + */ + +#define NAME "rpi.geq" + +Geq::Geq(Controller *controller) + : Algorithm(controller) +{ +} + +char const *Geq::name() const +{ + return NAME; +} + +int Geq::read(const libcamera::YamlObject ¶ms) +{ + config_.offset = params["offset"].get<uint16_t>(0); + config_.slope = params["slope"].get<double>(0.0); + if (config_.slope < 0.0 || config_.slope >= 1.0) { + LOG(RPiGeq, Error) << "Bad slope value"; + return -EINVAL; + } + + if (params.contains("strength")) { + int ret = config_.strength.read(params["strength"]); + if (ret) + return ret; + } + + return 0; +} + +void Geq::prepare(Metadata *imageMetadata) +{ + LuxStatus luxStatus = {}; + luxStatus.lux = 400; + if (imageMetadata->get("lux.status", luxStatus)) + LOG(RPiGeq, Warning) << "no lux data found"; + DeviceStatus deviceStatus; + deviceStatus.analogueGain = 1.0; /* in case not found */ + if (imageMetadata->get("device.status", deviceStatus)) + LOG(RPiGeq, Warning) + << "no device metadata - use analogue gain of 1x"; + GeqStatus geqStatus = {}; + double strength = config_.strength.empty() + ? 1.0 + : config_.strength.eval(config_.strength.domain().clip(luxStatus.lux)); + strength *= deviceStatus.analogueGain; + double offset = config_.offset * strength; + double slope = config_.slope * strength; + geqStatus.offset = std::min(65535.0, std::max(0.0, offset)); + geqStatus.slope = std::min(.99999, std::max(0.0, slope)); + LOG(RPiGeq, Debug) + << "offset " << geqStatus.offset << " slope " + << geqStatus.slope << " (analogue gain " + << deviceStatus.analogueGain << " lux " + << luxStatus.lux << ")"; + imageMetadata->set("geq.status", geqStatus); +} + +/* Register algorithm with the system. */ +static Algorithm *create(Controller *controller) +{ + return (Algorithm *)new Geq(controller); +} +static RegisterAlgorithm reg(NAME, &create); |