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WindowServer: Use FB_IOCTL_FLUSH_HEAD to flush a framebuffer if possible

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This ioctl is more appropriate when the hardware supports flushing of
the entire framebuffer, so we use that instead of the previous default
FB_IOCTL_FLUSH_HEAD_BUFFERS ioctl.
This commit is contained in:
Liav A 2022-04-30 13:55:00 +03:00 • committed by Andreas Kling
parent 41283a2de6
commit 4ff6150f1b
8 changed files with 45 additions and 5 deletions
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22
Userland/Services/WindowServer/Screen.cpp
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@ -527,7 +527,7 @@ void Screen::queue_flush_display_rect(Gfx::IntRect const& flush_region)
void Screen::flush_display(int buffer_index)
{
VERIFY(m_backend->m_can_device_flush_buffers);
VERIFY(m_backend->m_can_device_flush_buffers || m_backend->m_can_device_flush_entire_framebuffer);
auto& flush_rects = *m_flush_rects;
if (flush_rects.pending_flush_rects.is_empty())
return;
@ -542,9 +542,15 @@ void Screen::flush_display(int buffer_index)
flush_rect.height *= scale_factor;
}
auto return_value = m_backend->flush_framebuffer_rects(buffer_index, flush_rects.pending_flush_rects.span());
if (return_value.is_error())
dbgln("Screen #{}: Error flushing display: {}", index(), return_value.error());
if (m_backend->m_can_device_flush_entire_framebuffer) {
auto return_value = m_backend->flush_framebuffer();
if (return_value.is_error())
dbgln("Screen #{}: Error flushing display: {}", index(), return_value.error());
} else {
auto return_value = m_backend->flush_framebuffer_rects(buffer_index, flush_rects.pending_flush_rects.span());
if (return_value.is_error())
dbgln("Screen #{}: Error flushing display: {}", index(), return_value.error());
}
flush_rects.too_many_pending_flush_rects = false;
flush_rects.pending_flush_rects.clear_with_capacity();
@ -555,6 +561,14 @@ void Screen::write_all_display_contents()
MUST(m_backend->write_all_contents(m_virtual_rect));
}
void Screen::flush_display_entire_framebuffer()
{
VERIFY(m_backend->m_can_device_flush_entire_framebuffer);
auto return_value = m_backend->flush_framebuffer();
if (return_value.is_error())
dbgln("Screen #{}: Error flushing display front buffer: {}", index(), return_value.error());
}
void Screen::flush_display_front_buffer(int front_buffer_index, Gfx::IntRect& rect)
{
VERIFY(m_backend->m_can_device_flush_buffers);