mirror of
https://github.com/Hopiu/rpi-rgb-led-matrix.git
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119 lines
3.6 KiB
C++
119 lines
3.6 KiB
C++
// -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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// Copyright (C) 2014 Henner Zeller <h.zeller@acm.org>
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// Copyright (C) 2015 Christoph Friedrich <christoph.friedrich@vonaffenfels.de>
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation version 2.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://gnu.org/licenses/gpl-2.0.txt>
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#ifndef RPI_TRANSFORMER_H
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#define RPI_TRANSFORMER_H
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#include <vector>
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#include <cstddef>
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#include "canvas.h"
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namespace rgb_matrix {
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// Transformer for RotateCanvas
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class RotateTransformer : public CanvasTransformer {
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public:
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RotateTransformer(int angle = 0);
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virtual ~RotateTransformer();
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void SetAngle(int angle);
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inline int angle() { return angle_; }
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virtual Canvas *Transform(Canvas *output);
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private:
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// Transformer canvas to rotate the input canvas in 90° steps
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class TransformCanvas;
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int angle_;
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TransformCanvas *const canvas_;
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};
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// Transformer for linked transformer objects
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// First transformer added will be considered last
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// (so it would the transformer that gets the original Canvas object)
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class LinkedTransformer : public CanvasTransformer {
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public:
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typedef std::vector<CanvasTransformer*> List;
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LinkedTransformer() {}
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LinkedTransformer(List transformer_list) : list_(transformer_list) {}
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// The ownership of the given transformers is _not_ taken over unless
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// you explicitly call DeleteTransformers().
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void AddTransformer(CanvasTransformer *transformer);
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void AddTransformer(List transformer_list);
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void SetTransformer(List transformer_list);
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// Delete transformers that have been added or set.
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void DeleteTransformers();
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// -- CanvasTransformer interface
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virtual Canvas *Transform(Canvas *output);
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private:
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List list_;
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};
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// If we take a long chain of panels and arrange them in a U-shape, so
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// that after half the panels we bend around and continue below. This way
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// we have a panel that has double the height but only uses one chain.
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// A single chain display with four 32x32 panels can then be arranged in this
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// 64x64 display:
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// [<][<][<][<] }- Raspbery Pi connector
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//
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// can be arranged in this U-shape
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// [<][<] }----- Raspberry Pi connector
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// [>][>]
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//
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// This works for more than one chain as well. Here an arrangement with
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// two chains with 8 panels each
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// [<][<][<][<] }-- Pi connector #1
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// [>][>][>][>]
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// [<][<][<][<] }--- Pi connector #2
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// [>][>][>][>]
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class UArrangementTransformer : public CanvasTransformer {
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public:
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UArrangementTransformer(int parallel = 1);
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~UArrangementTransformer();
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virtual Canvas *Transform(Canvas *output);
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private:
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class TransformCanvas;
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TransformCanvas *const canvas_;
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};
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// Something used before, but it had a confusing 180 degree turn and was not
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// ready for multiple parallel chains. So consider using the
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// U-ArrangementTransformer instead.
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class LargeSquare64x64Transformer : public CanvasTransformer {
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public:
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LargeSquare64x64Transformer();
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virtual Canvas *Transform(Canvas *output);
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private:
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// This old transformer was a little off and rotated the whole result in
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// the end. simulated that here.
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UArrangementTransformer arrange_;
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RotateTransformer rotated_;
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} __attribute__((deprecated));
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} // namespace rgb_matrix
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#endif // RPI_TRANSFORMER_H
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