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LibGfx: Make Gfx::Bitmap::create_shareable() use an anonymous file

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Note that this is only used by OOPWV in LibWeb at the moment.
This commit is contained in:
Andreas Kling 2021-01-16 23:14:24 +01:00
parent c16e36be48
commit 04b2aeef33
1 changed files with 6 additions and 3 deletions
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9
Userland/Libraries/LibGfx/Bitmap.cpp
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@ -103,6 +103,7 @@ RefPtr<Bitmap> Bitmap::create_purgeable(BitmapFormat format, const IntSize& size
return adopt(*new Bitmap(format, size, Purgeable::Yes, backing_store.value()));
}
#ifdef __serenity__
RefPtr<Bitmap> Bitmap::create_shareable(BitmapFormat format, const IntSize& size)
{
if (size_would_overflow(format, size))
@ -110,11 +111,13 @@ RefPtr<Bitmap> Bitmap::create_shareable(BitmapFormat format, const IntSize& size
const auto pitch = minimum_pitch(size.width(), format);
const auto data_size = size_in_bytes(pitch, size.height());
auto shared_buffer = SharedBuffer::create_with_size(data_size);
if (!shared_buffer)
auto anon_fd = anon_create(round_up_to_power_of_two(data_size, PAGE_SIZE), O_CLOEXEC);
if (anon_fd < 0)
return nullptr;
return adopt(*new Bitmap(format, shared_buffer.release_nonnull(), size, Vector<RGBA32>()));
return Bitmap::create_with_anon_fd(format, anon_fd, size, ShouldCloseAnonymousFile::No);
}
#endif
Bitmap::Bitmap(BitmapFormat format, const IntSize& size, Purgeable purgeable, const BackingStore& backing_store)
: m_size(size)