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WindowServer: Add a "scale" parameter to the SetResolution message and plumb it through

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Now, `chres 640 480 2` can set the UI to HighDPI 640x480 at runtime. A
real GUI for changing the display factor will come later.

(`chres 640 480 2` followed by `chres 1280 960` is very fast since
we don't have to re-allocate the framebuffer since both modes use
the exact same number of physical pixels.)
This commit is contained in:
Nico Weber 2021-01-15 14:53:53 -05:00 • committed by Andreas Kling
parent 248d75e13b
commit 63ac9462ad
9 changed files with 53 additions and 32 deletions
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3
Userland/Applications/DisplaySettings/DisplaySettings.cpp
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@ -246,7 +246,8 @@ void DisplaySettingsWidget::load_current_settings()
void DisplaySettingsWidget::send_settings_to_window_server()
{
auto result = GUI::WindowServerConnection::the().send_sync<Messages::WindowServer::SetResolution>(m_monitor_widget->desktop_resolution());
// FIXME: Add UI for changing the scale factor.
auto result = GUI::WindowServerConnection::the().send_sync<Messages::WindowServer::SetResolution>(m_monitor_widget->desktop_resolution(), 1);
if (!result->success()) {
GUI::MessageBox::show(nullptr, String::formatted("Reverting to resolution {}x{}", result->resolution().width(), result->resolution().height()),
"Unable to set resolution", GUI::MessageBox::Type::Error);