Stefan Klug
b48d41a853
Using a custom vertex map the dw100 dewarper is capable of doing complex and useful transformations on the image data. This class implements a pipeline featuring: - Arbitrary ScalerCrop - Full transform support (Flip, 90deg rotations) - Arbitrary move, scale, rotate ScalerCrop and Transform is implemented to provide a interface that is standardized libcamera wide. The rest is implemented on top for more flexible dw100 specific features. Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
79 lines
1.9 KiB
C++
79 lines
1.9 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2025, Ideas on Board Oy
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*
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* DW100 vertex map interface
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*/
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#pragma once
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#include <assert.h>
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#include <cmath>
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#include <stdint.h>
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#include <vector>
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#include <libcamera/base/span.h>
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#include <libcamera/geometry.h>
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#include <libcamera/transform.h>
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namespace libcamera {
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class Dw100VertexMap
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{
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public:
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enum ScaleMode {
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Fill = 0,
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Crop = 1,
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};
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void applyLimits();
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void setInputSize(const Size &size)
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{
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inputSize_ = size;
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scalerCrop_ = Rectangle(size);
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}
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void setSensorCrop(const Rectangle &rect) { sensorCrop_ = rect; }
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void setScalerCrop(const Rectangle &rect) { scalerCrop_ = rect; }
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const Rectangle &effectiveScalerCrop() const { return effectiveScalerCrop_; }
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void setOutputSize(const Size &size) { outputSize_ = size; }
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const Size &outputSize() const { return outputSize_; }
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void setTransform(const Transform &transform) { transform_ = transform; }
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const Transform &transform() const { return transform_; }
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void setScale(const float scale) { scale_ = scale; }
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float effectiveScale() const { return (effectiveScaleX_ + effectiveScaleY_) * 0.5; }
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void setRotation(const float rotation) { rotation_ = rotation; }
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float rotation() const { return rotation_; }
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void setOffset(const Point &offset) { offset_ = offset; }
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const Point &effectiveOffset() const { return effectiveOffset_; }
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void setMode(const ScaleMode mode) { mode_ = mode; }
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ScaleMode mode() const { return mode_; }
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std::vector<uint32_t> getVertexMap();
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private:
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Rectangle scalerCrop_;
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Rectangle sensorCrop_;
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Transform transform_ = Transform::Identity;
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Size inputSize_;
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Size outputSize_;
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Point offset_;
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double scale_ = 1.0;
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double rotation_ = 0.0;
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ScaleMode mode_ = Fill;
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double effectiveScaleX_;
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double effectiveScaleY_;
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Point effectiveOffset_;
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Rectangle effectiveScalerCrop_;
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};
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} /* namespace libcamera */
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