f619caf621
Keep the Linux DMABUF handle alongside the bitmap wrapper when imported shared images reach the UI process. This lets consumers import the same GPU backing store directly instead of only reading it through the mapped bitmap. Also require exported Vulkan shared images to be sampleable, since the Qt Vulkan presentation path needs to sample compositor backing stores.
56 lines
1.5 KiB
C++
56 lines
1.5 KiB
C++
/*
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* Copyright (c) 2026, Aliaksandr Kalenik <kalenik.aliaksandr@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 <AK/Noncopyable.h>
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#include <AK/NonnullRefPtr.h>
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#include <AK/Optional.h>
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#include <LibGfx/Bitmap.h>
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#include <LibGfx/SharedImage.h>
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#ifdef AK_OS_MACOS
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# include <LibCore/IOSurface.h>
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#endif
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namespace Gfx {
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class SharedImageBuffer {
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AK_MAKE_NONCOPYABLE(SharedImageBuffer);
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public:
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static SharedImageBuffer create(IntSize);
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static SharedImageBuffer import_from_shared_image(SharedImage);
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SharedImageBuffer(SharedImageBuffer&&);
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SharedImageBuffer& operator=(SharedImageBuffer&&);
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~SharedImageBuffer();
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SharedImage export_shared_image() const;
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NonnullRefPtr<Bitmap> bitmap() const { return m_bitmap; }
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#ifdef AK_OS_MACOS
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Core::IOSurfaceHandle const& iosurface_handle() const { return m_iosurface_handle; }
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#elif defined(USE_VULKAN_DMABUF_IMAGES)
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LinuxDmaBufHandle const* linux_dmabuf_handle() const { return m_linux_dmabuf_handle.has_value() ? &m_linux_dmabuf_handle.value() : nullptr; }
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#endif
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private:
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#ifdef AK_OS_MACOS
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SharedImageBuffer(Core::IOSurfaceHandle&&, NonnullRefPtr<Bitmap>);
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Core::IOSurfaceHandle m_iosurface_handle;
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#else
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explicit SharedImageBuffer(NonnullRefPtr<Bitmap>);
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# ifdef USE_VULKAN_DMABUF_IMAGES
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SharedImageBuffer(NonnullRefPtr<Bitmap>, LinuxDmaBufHandle&&);
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Optional<LinuxDmaBufHandle> m_linux_dmabuf_handle;
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# endif
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#endif
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NonnullRefPtr<Bitmap> m_bitmap;
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};
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}
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