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c684af1f83
This makes the colors show up correctly when using putImageData() to draw an ImageData onto a CanvasRenderingContext2D. :^)
86 lines
2.7 KiB
C++
86 lines
2.7 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <LibGfx/Bitmap.h>
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#include <LibJS/Runtime/Uint8ClampedArray.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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dbgln("Creating ImageData with {}x{}", width, height);
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auto* data = JS::Uint8ClampedArray::create(global_object, width * height * 4);
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if (!data)
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return nullptr;
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auto data_handle = JS::make_handle(data);
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auto bitmap = Gfx::Bitmap::create_wrapper(Gfx::BitmapFormat::RGBA8888, Gfx::IntSize(width, height), 1, width * sizeof(u32), (u32*)data->data());
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if (!bitmap)
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return nullptr;
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return adopt(*new ImageData(bitmap.release_nonnull(), 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()
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{
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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.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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