Pixman Projects
A list of pixman projects in need of volunteers. They are listed in
order of specificity. Projects listed first are well-understood and
somebody just needs to do them; projects listed last are not well
understood and need research and experimentation.
Code Cleanup
Clean up how the code is formatted etc. Get rid of camel case names
and "fb" prefixes.
Implement PIMAN_REPEAT_REFLECT for Images
Then remove cairo's hack at least for the image and xlib backends.
Test Suite
Write a test suite, probably based on rendercheck.
Use Floating Point Transformations Internally
The current fixpoint transformations do not have sufficient precision
in many cases.
Implement X Server Pictures as Pixman Images
Currently the X server creates and destroys pixman_images on every
rendering request. Fixing this is mostly an X server project, but
changes to pixman may be required.
Optimizations
Optimizations of all parts of the code are welcome, but trapezoid
rasterization, and transformations/filtering are particularly in need
of performance improvements.
Move Core X Rendering Code Into Pixman
Move the remaining software rendering code for things like XCopyArea
and XDrawLines from the xserver into pixman.
Higher Quality Image Filtering
Add better filtering, especially for downscaling transformations.
Higher-Precision Formats
It is desirable to support floating point channels, both 16 and 32
bit. This requires evaluating the compositing operators and finding
out how what they mean when color channels are not confined to the [0,
1] interval.
Polygon Rasterization
Find out how to improve the support for polygons in pixman and
XRender.
Make it a DRM Client
Enable pixman to render to drm buffer objects.
JIT Compiler
Dynamically generate machine (and possibly shader) code to improve
both performance and maintainability.
Color Management/Gamma Correction
Find out what color management support is needed in cairo, XRender,
and pixman.
Multithreading
Find out how to make X, pixman and cairo do multithreaded rendering.