The libsvg TODO
---------------
(sorted roughly by intention)
Non-critical, relatively minor
------------------------------
Add svg image support.
Fix to not preserve whitespace by default.
Resolve proper rendering of width 1 lines (see "Fail, due to secondary considerations" below)
Fix units (come up with a general solution for dealing with 100% on outer <svg>)
Fix aligning of text, (note that text-alignment-BE-10 breaks when scaling)
Big work ahead
--------------
Add gradients
Add clipping/masking
Add filters
Add whatever else is missing to bring all other tests into conformance
Conformance Testing Status
==========================
Here is the status of libsvg with respect to the tests from the W3C
conformance suite. The test suite is available from:
http://www.w3.org/Graphics/SVG/Test/
The status below reflects results from the xsvg viewer using libsvg-cairo
which uses cairo and libsvg. Hence, some of the failures noted below
could be bugs in xsvg, libsvg-cairo, or cairo rather than directly in libsvg.
Test are grouped according to their behavior:
Pass perfectly [*]
-----------------
color-datatypes-BE-01.svg
coords-transforms-BE-02.svg
coords-units-BE-01.svg
coords-unitsProc-BE-04.svg
masking-groupOpac-BE-04.svg
paint-inherit-BE-06.svg
paint-stroke-BE-02.svg
path-curves-BE-02.svg
path-curves-BE-03.svg
path-curves-BE-04.svg
path-lines-BE-01.svg
rendering-orderGr-BE-01.svg
rendering-shape-BE-03.svg
shapes-circle-BE-03.svg
shapes-ellipse-BE-02.svg
shapes-line-BE-04.svg
shapes-polygon-BE-05.svg
shapes-polyline-BE-06.svg
shapes-rect-BE-01.svg
structure-basicG-BE-03.svg
structure-empty-BE-01.svg
structure-nested-BE-02.svg
[*] There is one big difference between my images and the reference images:
The SVG conformance suite reference images have width 1 stroked
rectangles, (with integer coordinates), occupying one row of
pixels. This is in contrast to my current output which occupies 2
rows of pixels (each at 50%). My current result is more "correct"
geometrically, but it looks nasty. I found language in the
spec. saying that all results had to be within 1 pixel of the
geometrically correct result. Also, property controlling this has
a default value of "auto" which means the user agent is allowed to
tradeoff geometrical accuracy for crisp edges.
So, I think the results I have conform, but I want to find a clean
way to get these silly width 1 rectangles nice and crisp and
matching the reference images.
Fail, but look hopeful
----------------------
text-font-BE-15.svg # Might be conforming, (I just don't have the fonts)
Fail completely
---------------
color-colorProf-BE-03.svg /* ICC */
color-property-BE-02.svg /* gradients */
coords-unitsProc-BE-05.svg /* gradients */
coords-viewBox-BE-03.svg /* clipping for slice */
filters-blend-BE-02.svg /* filters */
filters-blur-BE-12.svg /* filters */
filters-colorMtrx-BE-03.svg /* filters */
filters-composite-BE-05.svg /* filters */
filters-convolve-BE-06.svg /* filters */
filters-diffuseLt-BE-07.svg /* filters */
filters-dispMap-BE-16.svg /* filters */
filters-feImage-BE-13.svg /* filters */
filters-feTile-BE-14.svg /* filters */
filters-fldMrgOff-BE-15.svg /* filters */
filters-lights-BE-09.svg /* filters */
filters-many-BE-01.svg /* filters */
filters-morph-BE-10.svg /* filters */
filters-specularLt-BE-08.svg /* filters */
filters-transfer-BE-04.svg /* filters */
filters-turb-BE-11.svg /* filters */
fonts-fontElement-BE-01.svg
gradPatt-linearGr-BE-01.svg /* gradients */
gradPatt-linearGr-BE-02.svg /* gradients */
gradPatt-linearGr-BE-03.svg /* gradients */
gradPatt-pattern-BE-07.svg /* gradients */
gradPatt-radialGr-BE-04.svg /* gradients */
gradPatt-radialGr-BE-05.svg /* gradients */
gradPatt-referenc-BE-08.svg /* gradients */
gradPatt-stop-BE-06.svg /* gradients */
gradPatt-stop-BE-10.svg /* gradients */
gradPatt-transfrm-BE-09.svg /* gradients */
masking-clipPath-BE-01.svg /* clipping */
masking-clipPath-BE-02.svg /* clipping */
masking-clipPath-BE-08.svg /* clipping */
masking-clipRule-BE-03.svg /* clipping */
masking-mask-BE-05.svg /* clipping */
masking-mask-BE-06.svg /* clipping */
masking-property-BE-07.svg /* clipping */
masking-vportClip-BE-09.svg /* clipping */
metadata-sample-BE-01.svg
paint-colIntProp-BE-05.svg /* gradients, interpolation */
paint-fill-BE-01.svg /* gradients */
paint-markers-BE-03.svg /* markers */
paint-markers-BE-04.svg /* markers */
rendering-text-BE-02.svg
structure-allElem-BE-09.svg /* switch */
structure-defs-BE-04.svg /* gradients */
structure-extRef-BE-10.svg /* linking */
structure-image-BE-06.svg /* linking */
structure-imggamma-BE-11.svg /* gamma? */
structure-lang-BE-08.svg /* systemLangauge */
structure-switch-BE-07.svg /* switch */
structure-symbol-BE-05.svg /* symbol */
style-selector-BE-01.svg /* css */
style-selector-BE-02.svg /* css */
style-selector-BE-03.svg /* css */
text-alignment-BR-10.svg
text-alignment-BR-11.svg
text-altGlyph-BE-07.svg
text-decoration-BE-12.svg
text-extTref-BE-18.svg
text-font-BE-16.svg
text-i18n-BE-09.svg
text-selection-BE-13.svg
text-spacing-BE-14.svg
text-text-BE-01.svg
text-textAnchor-BE-05.svg
text-textLength-BE-17.svg
text-textOnPath-BE-03.svg
text-tref-BE-04.svg
text-tspan-BE-02.svg
text-whiteSpace-BE-06.svg
Dynamic tests (all of these fail due to major functionality not yet implemented in libsvg)
------------------------------------------------------------------------------------------
animation-*
dom-*
extend-*
filters-*
interact-*
linking-*
script-*
