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LibGfx: Add Bitmap::visually_equals()

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This commit is contained in:
Jelle Raaijmakers 2022-04-15 01:07:15 +02:00 • committed by Ali Mohammad Pur
parent 8b370f988b
commit dad829de50
2 changed files with 20 additions and 0 deletions
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18
Userland/Libraries/LibGfx/Bitmap.cpp
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@ -582,4 +582,22 @@ Vector<ARGB32> Bitmap::palette_to_vector() const
vector.unchecked_append(palette_color(i).value()); vector.unchecked_append(palette_color(i).value());
return vector; return vector;
} }
bool Bitmap::visually_equals(Bitmap const& other) const
{
auto own_width = width();
auto own_height = height();
if (other.width() != own_width || other.height() != own_height)
return false;
for (auto y = 0; y < own_height; ++y) {
for (auto x = 0; x < own_width; ++x) {
if (get_pixel(x, y) != other.get_pixel(x, y))
return false;
}
}
return true;
}
} }

2
Userland/Libraries/LibGfx/Bitmap.h
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@ -236,6 +236,8 @@ public:
[[nodiscard]] Core::AnonymousBuffer& anonymous_buffer() { return m_buffer; } [[nodiscard]] Core::AnonymousBuffer& anonymous_buffer() { return m_buffer; }
[[nodiscard]] Core::AnonymousBuffer const& anonymous_buffer() const { return m_buffer; } [[nodiscard]] Core::AnonymousBuffer const& anonymous_buffer() const { return m_buffer; }
[[nodiscard]] bool visually_equals(Bitmap const&) const;
private: private:
Bitmap(BitmapFormat, IntSize const&, int, BackingStore const&); Bitmap(BitmapFormat, IntSize const&, int, BackingStore const&);
Bitmap(BitmapFormat, IntSize const&, int, size_t pitch, void*); Bitmap(BitmapFormat, IntSize const&, int, size_t pitch, void*);