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>

1 files changed, 0 insertions, 89 deletions

diff --git a/src/ipa/raspberrypi/controller/rpi/geq.cpp b/src/ipa/raspberrypi/controller/rpi/geq.cpp
deleted file mode 100644
index 510870e9..00000000
--- a/src/ipa/raspberrypi/controller/rpi/geq.cpp
+++ /dev/null
@@ -1,89 +0,0 @@
-/* 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 &params)
-{
-	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);