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LibGfx: Use ErrorOr<T> for Bitmap infrastructure used by ShareableBitmap

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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.
This commit is contained in:
Andreas Kling 2021-11-06 13:15:43 +01:00
parent 8262bbf624
commit 09cba7c780
5 changed files with 13 additions and 22 deletions
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21
Userland/Libraries/LibGfx/Bitmap.cpp
View file

@ -533,17 +533,12 @@ ErrorOr<NonnullRefPtr<Gfx::Bitmap>> Bitmap::cropped(Gfx::IntRect crop) const
return new_bitmap.release_nonnull();
}
RefPtr<Bitmap> Bitmap::to_bitmap_backed_by_anonymous_buffer() const
ErrorOr<NonnullRefPtr<Bitmap>> Bitmap::to_bitmap_backed_by_anonymous_buffer() const
{
if (m_buffer.is_valid())
return *this;
auto buffer_or_error = Core::AnonymousBuffer::create_with_size(round_up_to_power_of_two(size_in_bytes(), PAGE_SIZE));
if (buffer_or_error.is_error())
return nullptr;
auto bitmap_or_error = Bitmap::try_create_with_anonymous_buffer(m_format, buffer_or_error.release_value(), size(), scale(), palette_to_vector());
if (bitmap_or_error.is_error())
return nullptr;
auto bitmap = bitmap_or_error.release_value();
return NonnullRefPtr { *this };
auto buffer = TRY(Core::AnonymousBuffer::create_with_size(round_up_to_power_of_two(size_in_bytes(), PAGE_SIZE)));
auto bitmap = TRY(Bitmap::try_create_with_anonymous_buffer(m_format, move(buffer), size(), scale(), palette_to_vector()));
memcpy(bitmap->scanline(0), scanline(0), size_in_bytes());
return bitmap;
}
@ -612,12 +607,12 @@ void Bitmap::set_volatile()
return true;
}
ShareableBitmap Bitmap::to_shareable_bitmap() const
Gfx::ShareableBitmap Bitmap::to_shareable_bitmap() const
{
auto bitmap = to_bitmap_backed_by_anonymous_buffer();
if (!bitmap)
auto bitmap_or_error = to_bitmap_backed_by_anonymous_buffer();
if (bitmap_or_error.is_error())
return {};
return ShareableBitmap(*bitmap);
return Gfx::ShareableBitmap { bitmap_or_error.release_value_but_fixme_should_propagate_errors(), Gfx::ShareableBitmap::ConstructWithKnownGoodBitmap };
}
ErrorOr<BackingStore> Bitmap::allocate_backing_store(BitmapFormat format, IntSize const& size, int scale_factor)

2
Userland/Libraries/LibGfx/Bitmap.h
View file

@ -116,7 +116,7 @@ public:
ErrorOr<NonnullRefPtr<Gfx::Bitmap>> scaled(int sx, int sy) const;
ErrorOr<NonnullRefPtr<Gfx::Bitmap>> scaled(float sx, float sy) const;
ErrorOr<NonnullRefPtr<Gfx::Bitmap>> cropped(Gfx::IntRect) const;
[[nodiscard]] RefPtr<Bitmap> to_bitmap_backed_by_anonymous_buffer() const;
ErrorOr<NonnullRefPtr<Gfx::Bitmap>> to_bitmap_backed_by_anonymous_buffer() const;
[[nodiscard]] ByteBuffer serialize_to_byte_buffer() const;
[[nodiscard]] ShareableBitmap to_shareable_bitmap() const;

5
Userland/Libraries/LibGfx/ShareableBitmap.cpp
View file

@ -13,11 +13,6 @@
namespace Gfx {
ShareableBitmap::ShareableBitmap(const Bitmap& bitmap)
: m_bitmap(bitmap.to_bitmap_backed_by_anonymous_buffer())
{
}
ShareableBitmap::ShareableBitmap(NonnullRefPtr<Bitmap> bitmap, Tag)
: m_bitmap(move(bitmap))
{

3
Userland/Libraries/LibGfx/ShareableBitmap.h
View file

@ -15,7 +15,6 @@ namespace Gfx {
class ShareableBitmap {
public:
ShareableBitmap() { }
explicit ShareableBitmap(const Gfx::Bitmap&);
enum Tag { ConstructWithKnownGoodBitmap };
ShareableBitmap(NonnullRefPtr<Gfx::Bitmap>, Tag);
@ -26,6 +25,8 @@ public:
Bitmap* bitmap() { return m_bitmap; }
private:
friend class Bitmap;
RefPtr<Bitmap> m_bitmap;
};

4
Userland/Libraries/LibWeb/InProcessWebView.cpp
View file

@ -119,8 +119,8 @@ void InProcessWebView::page_did_request_image_context_menu(const Gfx::IntPoint&
return;
Gfx::ShareableBitmap shareable_bitmap;
if (bitmap)
shareable_bitmap = Gfx::ShareableBitmap(*bitmap);
on_image_context_menu_request(url, screen_relative_rect().location().translated(to_widget_position(content_position)), shareable_bitmap);
shareable_bitmap = bitmap->to_shareable_bitmap();
on_image_context_menu_request(url, screen_relative_rect().location().translated(to_widget_position(content_position)), move(shareable_bitmap));
}
void InProcessWebView::page_did_click_link(const AK::URL& url, const String& target, unsigned modifiers)