From 0db2c8dc75e466e7648dc1b95380495c6a126349 Mon Sep 17 00:00:00 2001 From: Naushir Patuck Date: Sun, 3 May 2020 16:48:42 +0100 Subject: libcamera: ipa: Raspberry Pi IPA Initial implementation of the Raspberry Pi (BCM2835) libcamera IPA and associated libraries. All code is licensed under the BSD-2-Clause terms. Copyright (c) 2019-2020 Raspberry Pi Trading Ltd. Signed-off-by: Naushir Patuck Acked-by: Laurent Pinchart Signed-off-by: Laurent Pinchart --- src/ipa/raspberrypi/controller/contrast_status.h | 31 ++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 src/ipa/raspberrypi/controller/contrast_status.h (limited to 'src/ipa/raspberrypi/controller/contrast_status.h') diff --git a/src/ipa/raspberrypi/controller/contrast_status.h b/src/ipa/raspberrypi/controller/contrast_status.h new file mode 100644 index 00000000..d7edd4e9 --- /dev/null +++ b/src/ipa/raspberrypi/controller/contrast_status.h @@ -0,0 +1,31 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ +/* + * Copyright (C) 2019, Raspberry Pi (Trading) Limited + * + * contrast_status.h - contrast (gamma) control algorithm status + */ +#pragma once + +// The "contrast" algorithm creates a gamma curve, optionally doing a little bit +// of contrast stretching based on the AGC histogram. + +#ifdef __cplusplus +extern "C" { +#endif + +#define CONTRAST_NUM_POINTS 33 + +struct ContrastPoint { + uint16_t x; + uint16_t y; +}; + +struct ContrastStatus { + struct ContrastPoint points[CONTRAST_NUM_POINTS]; + double brightness; + double contrast; +}; + +#ifdef __cplusplus +} +#endif -- cgit v1.2.1