bfd354492e
With this change, we now have ~1200 CellAllocators across both LibJS and LibWeb in a normal WebContent instance. This gives us a minimum heap size of 4.7 MiB in the scenario where we only have one cell allocated per type. Of course, in practice there will be many more of each type, so the effective overhead is quite a bit smaller than that in practice. I left a few types unconverted to this mechanism because I got tired of doing this. :^)
77 lines
1.9 KiB
C++
77 lines
1.9 KiB
C++
/*
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* Copyright (c) 2020-2022, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibGfx/Bitmap.h>
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#include <LibJS/Runtime/TypedArray.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/HTML/ImageData.h>
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namespace Web::HTML {
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JS_DEFINE_ALLOCATOR(ImageData);
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JS::GCPtr<ImageData> ImageData::create_with_size(JS::Realm& realm, int width, int height)
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{
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if (width <= 0 || height <= 0)
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return nullptr;
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if (width > 16384 || height > 16384)
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return nullptr;
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auto data_or_error = JS::Uint8ClampedArray::create(realm, width * height * 4);
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if (data_or_error.is_error())
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return nullptr;
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auto data = JS::NonnullGCPtr<JS::Uint8ClampedArray>(*data_or_error.release_value());
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auto bitmap_or_error = Gfx::Bitmap::create_wrapper(Gfx::BitmapFormat::RGBA8888, Gfx::IntSize(width, height), 1, width * sizeof(u32), data->data().data());
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if (bitmap_or_error.is_error())
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return nullptr;
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return realm.heap().allocate<ImageData>(realm, realm, bitmap_or_error.release_value(), move(data));
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}
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ImageData::ImageData(JS::Realm& realm, NonnullRefPtr<Gfx::Bitmap> bitmap, JS::NonnullGCPtr<JS::Uint8ClampedArray> data)
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: PlatformObject(realm)
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, m_bitmap(move(bitmap))
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, m_data(move(data))
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{
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}
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ImageData::~ImageData() = default;
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void ImageData::initialize(JS::Realm& realm)
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{
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Base::initialize(realm);
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set_prototype(&Bindings::ensure_web_prototype<Bindings::ImageDataPrototype>(realm, "ImageData"));
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}
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void ImageData::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_data);
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}
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unsigned ImageData::width() const
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{
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return m_bitmap->width();
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}
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unsigned ImageData::height() const
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{
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return m_bitmap->height();
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}
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JS::Uint8ClampedArray* ImageData::data()
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{
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return m_data;
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}
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const JS::Uint8ClampedArray* ImageData::data() const
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{
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return m_data;
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}
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}
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