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authorDaniel Semkowicz via libcamera-devel <libcamera-devel@lists.libcamera.org>2022-07-13 10:43:09 +0200
committerJacopo Mondi <jacopo@jmondi.org>2022-07-14 17:06:47 +0200
commit9d79a6b6c64e0b6281391c3277af68210d434460 (patch)
tree91af0bb582ca557010a5dd7038c3a290ec80b7b0 /src/ipa/rkisp1
parent5504e573f27d3d4aba6f903e01075fcc27700d3e (diff)
ipa: rkisp1: Add AF algorithm basing on common AfHillClimbing class
Rockchip ISP AF block allows calculation of sharpness and luminance in up to three user defined windows. If no windows are set, there are some default settings applied for the first window and exposed through the driver. For each frame, use the sharpness value calculated for this default window and feed the hill climbing algorithm with them. Then set the lens position to value calculated by the algorithm. Signed-off-by: Daniel Semkowicz <dse@thaumatec.com>
Diffstat (limited to 'src/ipa/rkisp1')
-rw-r--r--src/ipa/rkisp1/algorithms/af.cpp70
-rw-r--r--src/ipa/rkisp1/algorithms/af.h32
-rw-r--r--src/ipa/rkisp1/algorithms/meson.build1
3 files changed, 103 insertions, 0 deletions
diff --git a/src/ipa/rkisp1/algorithms/af.cpp b/src/ipa/rkisp1/algorithms/af.cpp
new file mode 100644
index 00000000..6e047804
--- /dev/null
+++ b/src/ipa/rkisp1/algorithms/af.cpp
@@ -0,0 +1,70 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2022, Theobroma Systems
+ *
+ * af.cpp - RkISP1 AF hill climbing based control algorithm
+ */
+
+#include "af.h"
+
+/**
+ * \file af.h
+ */
+
+namespace libcamera::ipa::rkisp1::algorithms {
+
+/**
+ * \class Af
+ * \brief AF control algorithm
+ */
+
+LOG_DEFINE_CATEGORY(RkISP1Af)
+
+/**
+ * \copydoc libcamera::ipa::Algorithm::configure
+ */
+int Af::configure([[maybe_unused]] IPAContext &context,
+ [[maybe_unused]] const IPACameraSensorInfo &configInfo)
+{
+ return 0;
+}
+
+/**
+ * \copydoc libcamera::ipa::Algorithm::prepare
+ */
+void Af::prepare([[maybe_unused]] IPAContext &context, [[maybe_unused]] rkisp1_params_cfg *params)
+{
+}
+
+/**
+ * \copydoc libcamera::ipa::Algorithm::process
+ */
+void Af::process(IPAContext &context,
+ [[maybe_unused]] IPAFrameContext *frameCtx,
+ const rkisp1_stat_buffer *stats)
+{
+ uint32_t sharpness = stats->params.af.window[0].sum;
+ uint32_t luminance = stats->params.af.window[0].lum;
+
+ LOG(RkISP1Af, Debug) << "lensPosition: " << context.frameContext.af.focus
+ << ", Sharpness: " << sharpness
+ << ", Luminance: " << luminance;
+
+ uint32_t lensPosition = processAutofocus(sharpness);
+
+ context.frameContext.af.focus = lensPosition;
+}
+
+void Af::setMetering([[maybe_unused]] controls::AfMeteringEnum metering)
+{
+ LOG(RkISP1Af, Error) << __FUNCTION__ << " not implemented!";
+}
+
+void Af::setWindows([[maybe_unused]] Span<const Rectangle> windows)
+{
+ LOG(RkISP1Af, Error) << __FUNCTION__ << " not implemented!";
+}
+
+REGISTER_IPA_ALGORITHM(Af, "Af")
+
+} /* namespace libcamera::ipa::rkisp1::algorithms */
diff --git a/src/ipa/rkisp1/algorithms/af.h b/src/ipa/rkisp1/algorithms/af.h
new file mode 100644
index 00000000..e9afbb98
--- /dev/null
+++ b/src/ipa/rkisp1/algorithms/af.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2022, Theobroma Systems
+ *
+ * af.h - RkISP1 AF hill climbing based control algorithm
+ */
+
+#pragma once
+
+#include <linux/rkisp1-config.h>
+
+#include "libipa/algorithms/af_hill_climbing.h"
+#include "module.h"
+
+namespace libcamera::ipa::rkisp1::algorithms {
+
+class Af : public ipa::common::algorithms::AfHillClimbing<Module>
+{
+public:
+ Af() = default;
+ ~Af() = default;
+
+ int configure(IPAContext &context, const IPACameraSensorInfo &configInfo) override;
+ void prepare(IPAContext &context, rkisp1_params_cfg *params) override;
+ void process(IPAContext &context, IPAFrameContext *frameCtx,
+ const rkisp1_stat_buffer *stats) override;
+
+ void setMetering(controls::AfMeteringEnum metering) override;
+ void setWindows(Span<const Rectangle> windows) override;
+};
+
+} /* namespace libcamera::ipa::rkisp1::algorithms */
diff --git a/src/ipa/rkisp1/algorithms/meson.build b/src/ipa/rkisp1/algorithms/meson.build
index 7ec53d89..81addcc9 100644
--- a/src/ipa/rkisp1/algorithms/meson.build
+++ b/src/ipa/rkisp1/algorithms/meson.build
@@ -1,6 +1,7 @@
# SPDX-License-Identifier: CC0-1.0
rkisp1_ipa_algorithms = files([
+ 'af.cpp',
'agc.cpp',
'awb.cpp',
'blc.cpp',