test: explicitly handle image formats in buffer_diff_core

In practice, the A and B images may be any mixture of RGB24 and
ARGB32 formats, so this change accepts all combinations of these
types, and converts the pixel values to a common (ARGB32) format
as needed.

Some of the newly added test failures are cases where the image
output is RGB24, but the matching reference image is ARGB32 with
noticeable transparency. Some of the newly passing tests are cases
where the unused 'alpha' channel of an RGB24 image was not equal
to 0xff, and the previous code had incorrectly used this channel
in max_diff calculations.

1 files changed, 0 insertions, 104 deletions

diff --git a/.gitlab-ci/ignore-script-argb32.txt b/.gitlab-ci/ignore-script-argb32.txt
index dd8b6ee8c..8ea8607c2 100644
--- a/.gitlab-ci/ignore-script-argb32.txt
+++ b/.gitlab-ci/ignore-script-argb32.txt
@@ -1,124 +1,44 @@
-a1-bug
 a1-fill
-arc-looping-dash
 bilevel-image
 bitmap-font
-bug-51910
-bug-84115
-bug-seams
-caps
-caps-05
-caps-1
-caps-2
-caps-joins-05
-caps-joins-1
-caps-joins-2
-caps-joins-curve
-caps-sub-paths
-caps-tails-curve
-checkerboard
 clear-source
 clip-device-offset
-clip-disjoint-quad
-clip-image
-clip-mixed-antialias
-clip-polygons
-clip-push-group
 clip-text
-close-path
-close-path-current-point
 composite-integer-translate-over-repeat
-copy-path
 coverage-abutting
-coverage-intersecting-quads
 coverage-intersecting-triangles
 coverage-rectangles
 culled-glyphs
-dash-caps-joins
-dash-curve
-dash-infinite-loop
-dash-scale
-dash-state
-degenerate-curve-to
-degenerate-linear-gradient
-degenerate-pen
-degenerate-radial-gradient
-degenerate-rel-curve-to
 device-offset-scale
-extend-pad-border
-fill-and-stroke-alpha
-fill-and-stroke-alpha-add
-filter-bilinear-extents
-font-matrix-translation
 ft-show-glyphs-positioning
-ft-show-glyphs-table
 ft-text-antialias-none
 ft-text-vertical-layout-type1
 ft-text-vertical-layout-type3
-glyph-cache-pressure
-halo
 halo-transform
-huge-radial
 image-surface-source
-infinite-join
-inverse-text
-joins
-large-font
 large-source
 large-twin-antialias-mixed
 leaky-dashed-rectangle
-leaky-dashed-stroke
-leaky-polygon
-linear-gradient-extend
 linear-gradient-reflect
-line-width-scale
-line-width-tolerance
-long-dashed-lines
 map-all-to-image
 map-bit-to-image
 map-to-image-fill
-mask-transformed-image
-mask-transformed-similar
 mesh-pattern
-mesh-pattern-conical
-mesh-pattern-control-points
-mesh-pattern-fold
-mesh-pattern-overlap
-mesh-pattern-transformed
 negative-stride-image
-operator-alpha-alpha
 overlapping-glyphs
 paint-source-alpha
-paint-with-alpha
-paint-with-alpha-clip
-paint-with-alpha-solid-clip
-partial-clip-text-bottom
-partial-clip-text-left
-partial-coverage-half-reference
-partial-coverage-reference
-partial-coverage-three-quarter-reference
-path-stroke-twice
 pdf-surface-source
 ps-surface-source
 pthread-show-text
 push-group-color
 radial-gradient
-radial-gradient-extend
 radial-gradient-mask
 radial-gradient-mask-source
-radial-gradient-one-stop
 radial-gradient-source
-record1414x-paint-alpha
-record1414x-paint-alpha-clip
-record1414x-paint-alpha-solid-clip
 record1414x-select-font-face
 record1414x-text-transform
-record2x-paint-alpha
-record2x-paint-alpha-clip
-record2x-paint-alpha-solid-clip
 record2x-select-font-face
 record2x-text-transform
-record90-paint-alpha-clip-mask
 record90-select-font-face
 record90-text-transform
 recordflip-select-font-face
@@ -130,61 +50,37 @@ recording-surface-extend-reflect
 recording-surface-extend-repeat
 recording-surface-over
 recording-surface-source
-record-mesh
 record-neg-extents-bounded
-record-paint-alpha-clip
-record-paint-alpha-solid-clip
 record-replay-extend-none
 record-replay-extend-pad
 record-replay-extend-reflect
 record-replay-extend-repeat
 record-select-font-face
 record-text-transform
-rectilinear-miter-limit
-reflected-stroke
 scale-offset-image
 scale-offset-similar
-select-font-face
-self-copy
-shape-sierpinski
 show-glyphs-advance
-show-text-current-point
 smask
-smask-image-mask
-smask-mask
-smask-paint
 smask-text
 stride-12-image
-stroke-ctm-caps
 subsurface
 subsurface-scale
-surface-pattern
-surface-pattern-scale-up
-text-antialias-gray
 text-antialias-subpixel
 text-antialias-subpixel-bgr
 text-antialias-subpixel-rgb
 text-antialias-subpixel-vbgr
 text-antialias-subpixel-vrgb
-text-glyph-range
 text-pattern
 text-rotate
-text-transform
 text-unhinted-metrics
-transforms
 twin
 twin-antialias-gray
 twin-antialias-mixed
 twin-antialias-none
 twin-antialias-subpixel
-unclosed-strokes
 user-font
 user-font-proxy
 user-font-rescale
-world-map
-world-map-fill
-world-map-stroke
 xcb-stress-cache
 xcb-surface-source
-xcomposite-projection
 xlib-surface-source