stats: Create IPAIPU3Stats and import intel_skycam_statistics_convert()

This is will be used to convert statistics received from kernel to
AIQ stats format. Specific 3a conversion functions will be added in
IPAIP3Stats in subsequent commits.

ipu3_stats_get_3a() will extract, memcpy each of 3A relevant structures.
It's is intended just before setting the stats for next frame in
AIQ::setStatistics().

It receives ipu3_uapi_stats_3a struct from the kernel. This API will be
developed per parameter of ipu3_uapi_stats_3a struct in subsequent
commit.

IPAIPU3Stats will be responsible to take in the AIQ algorithms results
set and hardware statistics as input and generate(and convert) AIQ
consumable ia_aiq_statistics_input_param structure.

Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>

1 files changed, 45 insertions, 0 deletions

diff --git a/stats/ipa_ipu3_stats.h b/stats/ipa_ipu3_stats.h
new file mode 100644
index 0000000..4320024
--- /dev/null
+++ b/stats/ipa_ipu3_stats.h
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+/*
+ * Copyright (C) 2017 Intel Corporation.
+ *
+ * IPAIPU3Stats.cpp: Generate statistics in IA AIQ consumable format.
+ */
+
+#include "aiq/aiq_results.h"
+
+#ifndef IPA_IPU3_STATS_H
+#define IPA_IPU3_STATS_H
+
+#include <ia_imaging/ia_aiq_types.h>
+#include <linux/intel-ipu3.h>
+
+#include "shared_item_pool.h"
+
+namespace libcamera::ipa::ipu3 {
+
+struct AiqResults;
+
+class IPAIPU3Stats
+{
+public:
+	IPAIPU3Stats();
+	~IPAIPU3Stats();
+
+	ia_aiq_statistics_input_params *
+	getInputStatsParams(int frame,
+			    aiq::AiqResults *results,
+			    const ipu3_uapi_stats_3a *stats);
+
+private:
+	void freeStatBufferPools();
+	int allocateStatBufferPools(int numBufs);
+
+	ia_aiq_statistics_input_params aiqStatsInputParams_;
+	std::shared_ptr<SharedItemPool<ia_aiq_af_grid>> afFilterBuffPool_;
+	std::shared_ptr<SharedItemPool<ia_aiq_rgbs_grid>> rgbsGridBuffPool_;
+};
+
+} /* namespace libcamera::ipa::ipu3 */
+
+#endif /* IPA_IPU3_STATS_H */
+