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LibGfx: Use ErrorOr<T> for Bitmap infrastructure used by ShareableBitmap
This also allows us to get rid of the ShareableBitmap(Bitmap) constructor which was easy to misuse. Everyone now uses Bitmap's to_shareable_bitmap() helper instead.
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8262bbf624
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09cba7c780
5 changed files with 13 additions and 22 deletions
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@ -533,17 +533,12 @@ ErrorOr<NonnullRefPtr<Gfx::Bitmap>> Bitmap::cropped(Gfx::IntRect crop) const
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return new_bitmap.release_nonnull();
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}
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RefPtr<Bitmap> Bitmap::to_bitmap_backed_by_anonymous_buffer() const
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ErrorOr<NonnullRefPtr<Bitmap>> Bitmap::to_bitmap_backed_by_anonymous_buffer() const
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{
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if (m_buffer.is_valid())
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return *this;
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auto buffer_or_error = Core::AnonymousBuffer::create_with_size(round_up_to_power_of_two(size_in_bytes(), PAGE_SIZE));
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if (buffer_or_error.is_error())
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return nullptr;
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auto bitmap_or_error = Bitmap::try_create_with_anonymous_buffer(m_format, buffer_or_error.release_value(), size(), scale(), palette_to_vector());
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if (bitmap_or_error.is_error())
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return nullptr;
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auto bitmap = bitmap_or_error.release_value();
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return NonnullRefPtr { *this };
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auto buffer = TRY(Core::AnonymousBuffer::create_with_size(round_up_to_power_of_two(size_in_bytes(), PAGE_SIZE)));
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auto bitmap = TRY(Bitmap::try_create_with_anonymous_buffer(m_format, move(buffer), size(), scale(), palette_to_vector()));
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memcpy(bitmap->scanline(0), scanline(0), size_in_bytes());
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return bitmap;
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}
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@ -612,12 +607,12 @@ void Bitmap::set_volatile()
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return true;
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}
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ShareableBitmap Bitmap::to_shareable_bitmap() const
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Gfx::ShareableBitmap Bitmap::to_shareable_bitmap() const
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{
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auto bitmap = to_bitmap_backed_by_anonymous_buffer();
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if (!bitmap)
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auto bitmap_or_error = to_bitmap_backed_by_anonymous_buffer();
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if (bitmap_or_error.is_error())
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return {};
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return ShareableBitmap(*bitmap);
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return Gfx::ShareableBitmap { bitmap_or_error.release_value_but_fixme_should_propagate_errors(), Gfx::ShareableBitmap::ConstructWithKnownGoodBitmap };
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}
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ErrorOr<BackingStore> Bitmap::allocate_backing_store(BitmapFormat format, IntSize const& size, int scale_factor)
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