| Commit message (Collapse) | Author | Age | Files | Lines |
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The extended radial gradients conform to the radial gradient
specification in HTML 5 canvas.
Task-number: QTBUG-14075
Reviewed-by: Andreas Kling
(cherry picked from commit da55c1ea92474e989e5582b02815936bbf584405)
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Two stops is a fairly common case so we gain quite a bit by special
casing it. Improves performance by 10 % in parcycle benchmark, and
by 90 % in a synthetic benchmark.
Reviewed-by: Andreas Kling
(cherry picked from commit 5b74a70ac630073582be56f8a0539624a1080185)
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On an i7 this improves performance by 22 % in parcycle, 107 % in default
svgviewer example, and 283 % in a synthetic radial gradient benchmark.
Reviewed-by: Andreas Kling
(cherry picked from commit 26bd3dccdee8c6a8f1cf9d254a2a6be7d403aa8d)
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Made the radial gradient fetch func into a template to be able to
optimize the inner loop using SIMD instructions.
Reviewed-by: Benjamin Poulain
(cherry picked from commit f16c261348193b4c03f796db4e1e3a5db09267a2)
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If the SRGB framebuffer extension in GL is available, we can support
gamma correction of text with a gamma of 2.1. On Mac this is
sufficient for gamma correcting subpixel antialiased text. Gray
antialiasing should not be gamma corrected on Mac.
On Windows, the user can potentially set the gamma value to anything
between 1.0 and 2.2 (or something like that). We support anything
that resembles 1.0 closely enough by pushing the text out without
any correction (like before). We also support anything that resembles
2.1 (the gamma hardcoded in GL's SRGB extension) by turning on the
extension before blending the text. In between the two, we'll use
gray antialiasing to avoid differing too much from the raster engine
(which is our reference in this.)
For gray antialiasing on Windows, we use a constant gamma of 2.3 which
has been determined by experimentation. Since this is close enough to
2.1 we do gamma correction with SRGB extension.
The distance limit of 0.2 is determined by some experimentation.
Reviewed-by: Samuel
(cherry picked from commit 79ba7cceca5e4029876ace2121edd25b08ae14ce)
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This is the beginning of revision history for this module. If you
want to look at revision history older than this, please refer to the
Qt Git wiki for how to use Git history grafting. At the time of
writing, this wiki is located here:
http://qt.gitorious.org/qt/pages/GitIntroductionWithQt
If you have already performed the grafting and you don't see any
history beyond this commit, try running "git log" with the "--follow"
argument.
Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12
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