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, 78 deletions

diff --git a/src/ipa/raspberrypi/statistics.h b/src/ipa/raspberrypi/statistics.h
deleted file mode 100644
index 015d4efc..00000000
--- a/src/ipa/raspberrypi/statistics.h
+++ /dev/null
@@ -1,78 +0,0 @@
-/* SPDX-License-Identifier: BSD-2-Clause */
-/*
- * Copyright (C) 2022, Raspberry Pi Ltd
- *
- * statistics.h - Raspberry Pi generic statistics structure
- */
-#pragma once
-
-#include <memory>
-#include <stdint.h>
-#include <vector>
-
-#include "histogram.h"
-#include "region_stats.h"
-
-namespace RPiController {
-
-struct RgbySums {
-	RgbySums(uint64_t _rSum = 0, uint64_t _gSum = 0, uint64_t _bSum = 0, uint64_t _ySum = 0)
-		: rSum(_rSum), gSum(_gSum), bSum(_bSum), ySum(_ySum)
-	{
-	}
-	uint64_t rSum;
-	uint64_t gSum;
-	uint64_t bSum;
-	uint64_t ySum;
-};
-
-using RgbyRegions = RegionStats<RgbySums>;
-using FocusRegions = RegionStats<uint64_t>;
-
-struct Statistics {
-	/*
-	 * All region based statistics are normalised to 16-bits, giving a
-	 * maximum value of (1 << NormalisationFactorPow2) - 1.
-	 */
-	static constexpr unsigned int NormalisationFactorPow2 = 16;
-
-	/*
-	 * Positioning of the AGC statistics gathering in the pipeline:
-	 * Pre-WB correction or post-WB correction.
-	 * Assume this is post-LSC.
-	 */
-	enum class AgcStatsPos { PreWb, PostWb };
-	const AgcStatsPos agcStatsPos;
-
-	/*
-	 * Positioning of the AWB/ALSC statistics gathering in the pipeline:
-	 * Pre-LSC or post-LSC.
-	 */
-	enum class ColourStatsPos { PreLsc, PostLsc };
-	const ColourStatsPos colourStatsPos;
-
-	Statistics(AgcStatsPos a, ColourStatsPos c)
-		: agcStatsPos(a), colourStatsPos(c)
-	{
-	}
-
-	/* Histogram statistics. Not all histograms may be populated! */
-	Histogram rHist;
-	Histogram gHist;
-	Histogram bHist;
-	Histogram yHist;
-
-	/* Row sums for flicker avoidance. */
-	std::vector<RgbySums> rowSums;
-
-	/* Region based colour sums. */
-	RgbyRegions agcRegions;
-	RgbyRegions awbRegions;
-
-	/* Region based focus FoM. */
-	FocusRegions focusRegions;
-};
-
-using StatisticsPtr = std::shared_ptr<Statistics>;
-
-} /* namespace RPiController */