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https://github.com/RGBCube/serenity
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d5fdc6096c
`CharacterBitmap` instances are generated at run-time and put on the heap, but they can be created in a `constexpr` context and stored in static memory. Also, remove additional `width` and `height` `static` values in favor of using the `constexpr` member functions of `CharacterBitmap`. These changes also include the removal of some initialization code which tests if the `CharacterBitmap` is created since it is always created and removes function-local `static` values which cause run-time branches to ensure it is initialized each time the function is called.
40 lines
969 B
C++
40 lines
969 B
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2022, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include "Size.h"
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#include <AK/RefCounted.h>
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#include <AK/RefPtr.h>
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#include <AK/StringView.h>
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namespace Gfx {
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class CharacterBitmap {
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public:
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CharacterBitmap() = delete;
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constexpr CharacterBitmap(StringView ascii_data, unsigned width, unsigned height)
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: m_bits(ascii_data)
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, m_size(width, height)
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{
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}
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constexpr ~CharacterBitmap() = default;
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constexpr bool bit_at(unsigned x, unsigned y) const { return m_bits[y * width() + x] == '#'; }
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constexpr StringView bits() const { return m_bits; }
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constexpr IntSize size() const { return m_size; }
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constexpr unsigned width() const { return m_size.width(); }
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constexpr unsigned height() const { return m_size.height(); }
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private:
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StringView m_bits {};
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IntSize m_size {};
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};
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}
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