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LibWeb: Make CSSPixels and Length use 64-bit (double) floating point

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This fixes a plethora of rounding problems on many websites.
In the future, we may want to replace this with fixed-point arithmetic
(bug #18566) for performance (and consistency with other engines),
but in the meantime this makes the web look a bit better. :^)

There's a lot more things that could be converted to doubles, which
would reduce the amount of casting necessary in this patch.
We can do that incrementally, however.
This commit is contained in:
Andreas Kling
2023-05-24 10:50:57 +02:00
parent 30262d7023
commit 655d9d1462
80 changed files with 298 additions and 299 deletions
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Userland/Libraries/LibWeb/SVG/SVGDecodedImageData.cpp
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@@ -34,7 +34,7 @@ public:
virtual bool is_connection_open() const override { return false; }
virtual Gfx::Palette palette() const override { return m_host_page.client().palette(); }
virtual DevicePixelRect screen_rect() const override { return {}; }
virtual float device_pixels_per_css_pixel() const override { return m_host_page.client().device_pixels_per_css_pixel(); }
virtual double device_pixels_per_css_pixel() const override { return m_host_page.client().device_pixels_per_css_pixel(); }
virtual CSS::PreferredColorScheme preferred_color_scheme() const override { return m_host_page.client().preferred_color_scheme(); }
virtual void request_file(FileRequest) override { }
virtual void paint(DevicePixelRect const&, Gfx::Bitmap&) override { }