mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 22:02:44 +00:00
b41954182a
They were previously taking up 9% of samples in a profile of PixelPaint while selecting a mask, and as a result of moving them to the header they were inlined, which effectively eliminated them from the profile.
92 lines
1.8 KiB
C++
92 lines
1.8 KiB
C++
/*
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* Copyright (c) 2021, Davipb <daviparca@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "Mask.h"
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namespace PixelPaint {
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Mask::Mask(Gfx::IntRect bounding_rect, u8 default_value)
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: m_bounding_rect(bounding_rect)
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{
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auto data_size = bounding_rect.size().area();
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m_data.resize(data_size);
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for (auto& x : m_data) {
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x = default_value;
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}
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}
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Mask Mask::with_bounding_rect(Gfx::IntRect inner_rect) const
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{
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auto result = Mask::empty(inner_rect);
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result.for_each_pixel([&](int x, int y) {
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result.set(x, y, get(x, y));
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});
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return result;
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}
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void Mask::shrink_to_fit()
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{
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int topmost = NumericLimits<int>::max();
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int bottommost = NumericLimits<int>::min();
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int leftmost = NumericLimits<int>::max();
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int rightmost = NumericLimits<int>::min();
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bool empty = true;
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for_each_pixel([&](auto x, auto y) {
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if (get(x, y) == 0) {
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return;
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}
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empty = false;
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topmost = min(topmost, y);
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bottommost = max(bottommost, y);
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leftmost = min(leftmost, x);
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rightmost = max(rightmost, x);
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});
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if (empty) {
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m_bounding_rect = {};
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m_data.clear();
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return;
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}
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Gfx::IntRect new_bounding_rect(
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leftmost,
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topmost,
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rightmost - leftmost + 1,
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bottommost - topmost + 1);
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*this = with_bounding_rect(new_bounding_rect);
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}
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void Mask::invert()
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{
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for_each_pixel([&](int x, int y) {
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set(x, y, 0xFF - get(x, y));
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});
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}
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void Mask::add(Mask const& other)
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{
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combine(other, [](int a, int b) { return a + b; });
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}
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void Mask::subtract(Mask const& other)
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{
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combine(other, [](int a, int b) { return a - b; });
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}
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void Mask::intersect(Mask const& other)
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{
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combinef(other, [](float a, float b) { return a * b; });
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}
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}
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