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Code Issues Activity Actions

LibGUI: Use new Bitmap::minimum_pitch method

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Also, make sure that the painter actually draws on a RGB(A) bitmap.

Closes #3460.
This commit is contained in:
Ben Wiederhake 2020-09-12 11:14:44 +02:00 • committed by Andreas Kling
parent 568d53c9b1
commit e3101c74c6
2 changed files with 2 additions and 1 deletions
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2
Libraries/LibGUI/Window.cpp
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@ -635,7 +635,7 @@ RefPtr<Gfx::Bitmap> Window::create_shared_bitmap(Gfx::BitmapFormat format, const
{
ASSERT(WindowServerConnection::the().server_pid());
ASSERT(!size.is_empty());
size_t pitch = round_up_to_power_of_two(size.width() * sizeof(Gfx::RGBA32), 16);
size_t pitch = Gfx::Bitmap::minimum_pitch(size.width(), format);
size_t size_in_bytes = size.height() * pitch;
auto shared_buffer = SharedBuffer::create_with_size(size_in_bytes);
ASSERT(shared_buffer);

1
Libraries/LibGfx/Painter.cpp
View file

@ -68,6 +68,7 @@ ALWAYS_INLINE Color get_pixel(const Gfx::Bitmap& bitmap, int x, int y)
Painter::Painter(Gfx::Bitmap& bitmap)
: m_target(bitmap)
{
ASSERT(bitmap.format() == Gfx::BitmapFormat::RGB32 || bitmap.format() == Gfx::BitmapFormat::RGBA32);
m_state_stack.append(State());
state().font = &Font::default_font();
state().clip_rect = { { 0, 0 }, bitmap.size() };