ladybird/Userland/Libraries/LibWeb/HTML/ImageData.cpp
Kenneth Myhra 51847bbebf LibWeb: Remove ImageData's create_with_size() and use create() instead
Removes ImageData::create_with_size() and redirects previous usage to
ImageData::create().
2024-03-24 11:09:09 +01:00

81 lines
2.2 KiB
C++

/*
* Copyright (c) 2020-2022, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2024, Kenneth Myhra <kennethmyhra@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibGfx/Bitmap.h>
#include <LibJS/Runtime/TypedArray.h>
#include <LibWeb/Bindings/Intrinsics.h>
#include <LibWeb/HTML/ImageData.h>
#include <LibWeb/WebIDL/DOMException.h>
#include <LibWeb/WebIDL/ExceptionOr.h>
namespace Web::HTML {
JS_DEFINE_ALLOCATOR(ImageData);
WebIDL::ExceptionOr<JS::NonnullGCPtr<ImageData>> ImageData::create(JS::Realm& realm, u32 sw, u32 sh, Optional<ImageDataSettings> const&)
{
auto& vm = realm.vm();
// 1. If one or both of sw and sh are zero, then throw an "IndexSizeError" DOMException.
if (sw == 0 || sh == 0)
return WebIDL::IndexSizeError::create(realm, "The source width and height must be greater than zero."_fly_string);
// 2. Initialize this given sw, sh, and settings set to settings.
// 3. Initialize the image data of this to transparent black.
auto data = TRY(JS::Uint8ClampedArray::create(realm, sw * sh * 4));
auto bitmap = TRY_OR_THROW_OOM(vm, Gfx::Bitmap::create_wrapper(Gfx::BitmapFormat::RGBA8888, Gfx::IntSize(sw, sw), 1, sw * sizeof(u32), data->data().data()));
return realm.heap().allocate<ImageData>(realm, realm, bitmap, data);
}
WebIDL::ExceptionOr<JS::NonnullGCPtr<ImageData>> ImageData::construct_impl(JS::Realm& realm, u32 sw, u32 sh, Optional<ImageDataSettings> const& settings)
{
return ImageData::create(realm, sw, sh, settings);
}
ImageData::ImageData(JS::Realm& realm, NonnullRefPtr<Gfx::Bitmap> bitmap, JS::NonnullGCPtr<JS::Uint8ClampedArray> data)
: PlatformObject(realm)
, m_bitmap(move(bitmap))
, m_data(move(data))
{
}
ImageData::~ImageData() = default;
void ImageData::initialize(JS::Realm& realm)
{
Base::initialize(realm);
WEB_SET_PROTOTYPE_FOR_INTERFACE(ImageData);
}
void ImageData::visit_edges(Cell::Visitor& visitor)
{
Base::visit_edges(visitor);
visitor.visit(m_data);
}
unsigned ImageData::width() const
{
return m_bitmap->width();
}
unsigned ImageData::height() const
{
return m_bitmap->height();
}
JS::Uint8ClampedArray* ImageData::data()
{
return m_data;
}
const JS::Uint8ClampedArray* ImageData::data() const
{
return m_data;
}
}