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40fe0cb9d5
This should halve the size of frames in memory for frames with 8-bit color components, which is the majority of videos. Calculation of the size of subsampled planes has also been consolidated into a struct. There are likely some places that will still need to change over to this, but it should prevent issues due to differing handling of rounding/ceiling.
47 lines
859 B
C++
47 lines
859 B
C++
/*
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* Copyright (c) 2024, Gregory Bertilson <zaggy1024@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibGfx/Size.h>
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namespace Media {
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struct Subsampling {
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public:
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Subsampling(bool x, bool y)
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: m_x(x)
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, m_y(y)
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{
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}
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Subsampling() = default;
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bool x() const { return m_x; }
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bool y() const { return m_y; }
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static u32 subsampled_size(bool subsampled, u32 size)
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{
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u32 subsampled_as_int = static_cast<u32>(subsampled);
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return (size + subsampled_as_int) >> subsampled_as_int;
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}
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template<Integral T>
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Gfx::Size<T> subsampled_size(Gfx::Size<T> size) const
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{
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return {
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subsampled_size(x(), size.width()),
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subsampled_size(y(), size.height())
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};
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}
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private:
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bool m_x = false;
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bool m_y = false;
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};
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}
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