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https://github.com/LadybirdBrowser/ladybird.git
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ffad902c07
Unlike ensure_web_prototype<T>(), the cached version doesn't require the prototype type to be fully formed, so we can use it without including the FooPrototype.h header. It's also a bit less verbose. :^)
72 lines
1.8 KiB
C++
72 lines
1.8 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/HTML/ImageData.h>
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#include <LibWeb/HTML/Window.h>
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namespace Web::HTML {
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JS::GCPtr<ImageData> ImageData::create_with_size(HTML::Window& window, int width, int height)
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{
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auto& realm = window.realm();
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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::try_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, window, bitmap_or_error.release_value(), move(data));
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}
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ImageData::ImageData(HTML::Window& window, NonnullRefPtr<Gfx::Bitmap> bitmap, JS::NonnullGCPtr<JS::Uint8ClampedArray> data)
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: PlatformObject(window.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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set_prototype(&window.cached_web_prototype("ImageData"));
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}
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ImageData::~ImageData() = default;
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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.ptr());
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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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