ladybird/Userland/Libraries/LibGfx/ImmutableBitmap.h
Aliaksandr Kalenik f4a5c136c3 LibGfx+LibWeb: Add ImmutableBitmap for images bitmap caching in painter
Before this change, we used Gfx::Bitmap to represent both decoded
images that are not going to be mutated and bitmaps corresponding
to canvases that could be mutated.

This change introduces a wrapper for bitmaps that are not going to be
mutated, so the painter could do caching: texture caching in the case
of GPU painter and potentially scaled bitmap caching in the case of CPU
painter.
2023-11-26 12:55:43 +01:00

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/*
* Copyright (c) 2023, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Forward.h>
#include <AK/RefCounted.h>
#include <LibGfx/Bitmap.h>
#include <LibGfx/Forward.h>
#include <LibGfx/Rect.h>
namespace Gfx {
class ImmutableBitmap final : public RefCounted<ImmutableBitmap> {
public:
static NonnullRefPtr<ImmutableBitmap> create(NonnullRefPtr<Bitmap> bitmap);
~ImmutableBitmap() = default;
Bitmap const& bitmap() const { return *m_bitmap; }
size_t width() const { return m_bitmap->width(); }
size_t height() const { return m_bitmap->height(); }
IntRect rect() const { return m_bitmap->rect(); }
IntSize size() const { return m_bitmap->size(); }
size_t id() const { return m_id; }
private:
NonnullRefPtr<Bitmap> m_bitmap;
size_t m_id;
explicit ImmutableBitmap(NonnullRefPtr<Bitmap> bitmap);
};
}