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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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2
Userland/Services/WindowServer/Compositor.h
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@ -57,7 +57,7 @@ public:
void invalidate_screen();
void invalidate_screen(const Gfx::IntRect&);
bool set_resolution(int desired_width, int desired_height);
bool set_resolution(int desired_width, int desired_height, int scale_factor);
bool set_background_color(const String& background_color);