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Rework the rendering model so that clients instantiate backing stores.

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This makes interactive resizing work a lot better, althought it's still not
perfect. There are still glitches and unpleasant flashes of zeroed memory.
This commit is contained in:
Andreas Kling
2019-02-20 21:59:13 +01:00
parent e0b81ee4c9
commit fa02d2a39b
17 changed files with 185 additions and 46 deletions
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11
WindowServer/WSWindow.cpp
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@@ -36,18 +36,13 @@ void WSWindow::set_title(String&& title)
void WSWindow::set_rect(const Rect& rect)
{
Rect old_rect;
if (!m_client && !m_menu)
return;
ASSERT(m_client || m_menu);
if (m_rect == rect)
return;
old_rect = m_rect;
m_rect = rect;
if (!m_backing || old_rect.size() != rect.size()) {
if (m_menu)
m_backing = GraphicsBitmap::create(GraphicsBitmap::Format::RGB32, m_rect.size());
else if (m_client) {
m_backing = m_client->create_shared_bitmap(m_has_alpha_channel ? GraphicsBitmap::Format::RGBA32 : GraphicsBitmap::Format::RGB32, m_rect.size());
}
if (m_menu && (!m_backing_store || old_rect.size() != rect.size())) {
m_backing_store = GraphicsBitmap::create(GraphicsBitmap::Format::RGB32, m_rect.size());
}
WSWindowManager::the().notify_rect_changed(*this, old_rect, rect);
}