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c37820b898
https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#cother-other-default-operation-rules "The compiler is more likely to get the default semantics right and you cannot implement these functions better than the compiler."
62 lines
1.5 KiB
C++
62 lines
1.5 KiB
C++
/*
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* Copyright (c) 2020, 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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namespace Web::HTML {
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RefPtr<ImageData> ImageData::create_with_size(JS::GlobalObject& global_object, 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(global_object, 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 = data_or_error.release_value();
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auto data_handle = JS::make_handle(data);
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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 adopt_ref(*new ImageData(bitmap_or_error.release_value(), move(data_handle)));
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}
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ImageData::ImageData(NonnullRefPtr<Gfx::Bitmap> bitmap, JS::Handle<JS::Uint8ClampedArray> data)
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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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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.cell();
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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.cell();
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}
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}
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