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/noise.cpp b/src/ipa/raspberrypi/controller/rpi/noise.cpp
deleted file mode 100644
index bcd8b9ed..00000000
--- a/src/ipa/raspberrypi/controller/rpi/noise.cpp
+++ /dev/null
@@ -1,89 +0,0 @@
-/* SPDX-License-Identifier: BSD-2-Clause */
-/*
- * Copyright (C) 2019, Raspberry Pi Ltd
- *
- * noise.cpp - Noise control algorithm
- */
-
-#include <math.h>
-
-#include <libcamera/base/log.h>
-
-#include "../device_status.h"
-#include "../noise_status.h"
-
-#include "noise.h"
-
-using namespace RPiController;
-using namespace libcamera;
-
-LOG_DEFINE_CATEGORY(RPiNoise)
-
-#define NAME "rpi.noise"
-
-Noise::Noise(Controller *controller)
-	: Algorithm(controller), modeFactor_(1.0)
-{
-}
-
-char const *Noise::name() const
-{
-	return NAME;
-}
-
-void Noise::switchMode(CameraMode const &cameraMode,
-		       [[maybe_unused]] Metadata *metadata)
-{
-	/*
-	 * For example, we would expect a 2x2 binned mode to have a "noise
-	 * factor" of sqrt(2x2) = 2. (can't be less than one, right?)
-	 */
-	modeFactor_ = std::max(1.0, cameraMode.noiseFactor);
-}
-
-int Noise::read(const libcamera::YamlObject &params)
-{
-	auto value = params["reference_constant"].get<double>();
-	if (!value)
-		return -EINVAL;
-	referenceConstant_ = *value;
-
-	value = params["reference_slope"].get<double>();
-	if (!value)
-		return -EINVAL;
-	referenceSlope_ = *value;
-
-	return 0;
-}
-
-void Noise::prepare(Metadata *imageMetadata)
-{
-	struct DeviceStatus deviceStatus;
-	deviceStatus.analogueGain = 1.0; /* keep compiler calm */
-	if (imageMetadata->get("device.status", deviceStatus) == 0) {
-		/*
-		 * There is a slight question as to exactly how the noise
-		 * profile, specifically the constant part of it, scales. For
-		 * now we assume it all scales the same, and we'll revisit this
-		 * if it proves substantially wrong.  NOTE: we may also want to
-		 * make some adjustments based on the camera mode (such as
-		 * binning), if we knew how to discover it...
-		 */
-		double factor = sqrt(deviceStatus.analogueGain) / modeFactor_;
-		struct NoiseStatus status;
-		status.noiseConstant = referenceConstant_ * factor;
-		status.noiseSlope = referenceSlope_ * factor;
-		imageMetadata->set("noise.status", status);
-		LOG(RPiNoise, Debug)
-			<< "constant " << status.noiseConstant
-			<< " slope " << status.noiseSlope;
-	} else
-		LOG(RPiNoise, Warning) << " no metadata";
-}
-
-/* Register algorithm with the system. */
-static Algorithm *create(Controller *controller)
-{
-	return new Noise(controller);
-}
-static RegisterAlgorithm reg(NAME, &create);