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WindowServer: Fix regression flushing scaled displays

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This accidentally was broken by 38af4c29e
This commit is contained in:
Tom 2021-06-27 15:43:04 -06:00 • committed by Andreas Kling
parent 4c8f7113ff
commit a55cf08ef9
1 changed files with 5 additions and 5 deletions
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10
Userland/Services/WindowServer/Compositor.cpp
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@ -568,9 +568,9 @@ void Compositor::flush(Screen& screen)
// Almost everything in Compositor is in logical coordinates, with the painters having
// a scale applied. But this routine accesses the backbuffer pixels directly, so it
// must work in physical coordinates.
rect = rect * screen.scale_factor();
Gfx::RGBA32* front_ptr = screen_data.m_front_bitmap->scanline(rect.y()) + rect.x();
Gfx::RGBA32* back_ptr = screen_data.m_back_bitmap->scanline(rect.y()) + rect.x();
auto scaled_rect = rect * screen.scale_factor();
Gfx::RGBA32* front_ptr = screen_data.m_front_bitmap->scanline(scaled_rect.y()) + scaled_rect.x();
Gfx::RGBA32* back_ptr = screen_data.m_back_bitmap->scanline(scaled_rect.y()) + scaled_rect.x();
size_t pitch = screen_data.m_back_bitmap->pitch();
// NOTE: The meaning of a flush depends on whether we can flip buffers or not.
@ -593,8 +593,8 @@ void Compositor::flush(Screen& screen)
from_ptr = back_ptr;
}
for (int y = 0; y < rect.height(); ++y) {
fast_u32_copy(to_ptr, from_ptr, rect.width());
for (int y = 0; y < scaled_rect.height(); ++y) {
fast_u32_copy(to_ptr, from_ptr, scaled_rect.width());
from_ptr = (const Gfx::RGBA32*)((const u8*)from_ptr + pitch);
to_ptr = (Gfx::RGBA32*)((u8*)to_ptr + pitch);
}