[cairo-bugs] [Bug 84044] test/cairo-test-suite reports wrong max diff comparing different opaque images

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=84044

--- Comment #1 from Massimo <sixtysix at inwind.it> ---
Created attachment 106538
  --> https://bugs.freedesktop.org/attachment.cgi?id=106538&action=edit
patch

Running

DISPLAY=:2 time -p make -s test TARGETS=image,xlib,xcb

without/with the attached patch on my laptop the last lines of
test/cairo-test-suite.log change from:

322 Passed, 203 Failed [1 crashed, 8 expected], 29 Skipped
Preamble: 1 failed - create-from-png
image (argb32): 1 crashed! - gl-surface-source
image (argb32): 41 failed - clip-operator extended-blend-alpha exten...
image (rgb24): 1 crashed! - gl-surface-source
image (rgb24): 49 failed - clip-operator extended-blend extended-ble...
xlib (argb32): 1 crashed! - gl-surface-source
xlib (argb32): 104 failed - aliasing arc-looping-dash bug-spline bug...
xlib (rgb24): 1 crashed! - gl-surface-source
xlib (rgb24): 142 failed - aliasing arc-looping-dash bug-spline bug-...
xlib-window (rgb24): 1 crashed! - gl-surface-source
xlib-window (rgb24): 140 failed - aliasing arc-looping-dash bug-spli...
xlib-render-0_0 (rgb24): 1 crashed! - gl-surface-source
xlib-render-0_0 (rgb24): 73 failed - caps-sub-paths clear-source cli...
xlib-fallback (rgb24): 1 crashed! - gl-surface-source
xlib-fallback (rgb24): 113 failed - bug-51910 bug-seams caps caps-jo...
xcb (argb32): 1 crashed! - gl-surface-source
xcb (argb32): 50 failed - bug-spline hatchings huge-radial operator-...
xcb (rgb24): 1 crashed! - gl-surface-source
xcb (rgb24): 99 failed - arc-looping-dash bug-spline bug-51910 bug-s...
xcb-window (rgb24): 1 crashed! - gl-surface-source
xcb-window (rgb24): 97 failed - arc-looping-dash bug-spline bug-5191...
xcb-window& (rgb24): 1 crashed! - gl-surface-source
xcb-window& (rgb24): 98 failed - arc-looping-dash bug-spline bug-519...
xcb-render-0_0 (argb32): 1 crashed! - gl-surface-source
xcb-render-0_0 (argb32): 55 failed - bug-seams clip-disjoint-hatchin...
xcb-render-0_0 (rgb24): 1 crashed! - gl-surface-source
xcb-render-0_0 (rgb24): 66 failed - bug-seams clip-disjoint-hatching...
xcb-fallback (rgb24): 1 crashed! - gl-surface-source
xcb-fallback (rgb24): 50 failed - bug-seams clip-operator extended-b...

to:

365 Passed, 160 Failed [1 crashed, 8 expected], 29 Skipped
Preamble: 1 failed - create-from-png
image (argb32): 1 crashed! - gl-surface-source
image (argb32): 41 failed - clip-operator extended-blend-alpha exten...
image (rgb24): 1 crashed! - gl-surface-source
image (rgb24): 31 failed - extended-blend-mask extended-blend-alpha-...
xlib (argb32): 1 crashed! - gl-surface-source
xlib (argb32): 104 failed - aliasing arc-looping-dash bug-spline bug...
xlib (rgb24): 1 crashed! - gl-surface-source
xlib (rgb24): 99 failed - aliasing arc-looping-dash bug-spline bug-e...
xlib-window (rgb24): 1 crashed! - gl-surface-source
xlib-window (rgb24): 97 failed - aliasing arc-looping-dash bug-splin...
xlib-render-0_0 (rgb24): 1 crashed! - gl-surface-source
xlib-render-0_0 (rgb24): 59 failed - clip-operator clip-push-group c...
xlib-fallback (rgb24): 1 crashed! - gl-surface-source
xlib-fallback (rgb24): 50 failed - bug-seams extended-blend-mask ext...
xcb (argb32): 1 crashed! - gl-surface-source
xcb (argb32): 50 failed - bug-spline hatchings huge-radial operator-...
xcb (rgb24): 1 crashed! - gl-surface-source
xcb (rgb24): 45 failed - bug-spline hatchings huge-radial overlappin...
xcb-window (rgb24): 1 crashed! - gl-surface-source
xcb-window (rgb24): 44 failed - bug-spline hatchings huge-radial ove...
xcb-window& (rgb24): 1 crashed! - gl-surface-source
xcb-window& (rgb24): 44 failed - bug-spline hatchings huge-radial ov...
xcb-render-0_0 (argb32): 1 crashed! - gl-surface-source
xcb-render-0_0 (argb32): 55 failed - bug-seams clip-disjoint-hatchin...
xcb-render-0_0 (rgb24): 1 crashed! - gl-surface-source
xcb-render-0_0 (rgb24): 49 failed - bug-seams clip-disjoint-hatching...
xcb-fallback (rgb24): 1 crashed! - gl-surface-source
xcb-fallback (rgb24): 32 failed - bug-seams extended-blend-mask exte...

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