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Implement color flash avoidance for Windows

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This commit is contained in:
Pedro J. Estébanez 2023-01-11 19:15:10 +01:00
parent d0e37cd04c
commit 03b96c1c4b
2 changed files with 22 additions and 1 deletions
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21
platform/windows/display_server_windows.cpp
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@ -2543,6 +2543,25 @@ LRESULT DisplayServerWindows::WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARA
return 0;
}
} break;
case WM_ERASEBKGND: {
Color early_color;
if (!_get_window_early_clear_override(early_color)) {
break;
}
bool must_recreate_brush = !window_bkg_brush || window_bkg_brush_color != early_color.to_argb32();
if (must_recreate_brush) {
if (window_bkg_brush) {
DeleteObject(window_bkg_brush);
}
window_bkg_brush = CreateSolidBrush(RGB(early_color.get_r8(), early_color.get_g8(), early_color.get_b8()));
}
HDC hdc = (HDC)wParam;
RECT rect = {};
if (GetUpdateRect(hWnd, &rect, true)) {
FillRect(hdc, &rect, window_bkg_brush);
}
return 1;
} break;
case WM_PAINT: {
Main::force_redraw();
} break;
@ -3982,7 +4001,7 @@ DisplayServerWindows::DisplayServerWindows(const String &p_rendering_driver, Win
memset(&wc, 0, sizeof(WNDCLASSEXW));
wc.cbSize = sizeof(WNDCLASSEXW);
wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC | CS_DBLCLKS;
wc.style = CS_OWNDC | CS_DBLCLKS;
wc.lpfnWndProc = (WNDPROC)::WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;

2
platform/windows/display_server_windows.h
View file

@ -452,6 +452,8 @@ class DisplayServerWindows : public DisplayServer {
bool in_dispatch_input_event = false;
WNDCLASSEXW wc;
HBRUSH window_bkg_brush = nullptr;
uint32_t window_bkg_brush_color = 0;
HCURSOR cursors[CURSOR_MAX] = { nullptr };
CursorShape cursor_shape = CursorShape::CURSOR_ARROW;