simple tests of the X Render extension.
rendercheck [-d|--display display] [-i|--iter] [--sync] [-t|--tests test1,test2,test3,...] [-o|--ops op1,op2,op3,...] [-v|--verbose] [--minimalrendering]
rendercheck is a set of simple tests of the X Render extension. It is designed for authors of Render implementations in X Servers.
-d|--display display Specifies the display to test against. -i|--iter iterations Specifies the number of times to repeat each operation before sampling results. Some X Servers may behave differently (hard‐ ware vs software rendering paths) depending on the previous op‐ erations done, so this may be used to influence the server's choices. --sync Enables synchronous xlib operation, for debugging. -t|--tests test1,test2,test3... Enables only a specific subset of the possible tests. Test names include fill, dcoords, scoords, mcoords, tscoords, tmco‐ ords, blend, composite, cacomposite, gradients, repeat, trian‐ gles, and bug7366. Names must be separated by commas and have no spaces. -f|--formats format1,format2,format3... Enables only a specific subset of the possible formats. Only formats listed in the server-supported format list are avail‐ able. Names must be separated by commas and have no spaces. -o|--ops Enables only a specific subset of the Render operators. -v|--verbose Enables verbose printing of information on tests run, and suc‐ cesses and failures. --minimalrendering Disables copying of offscreen destinations to the window, which is on by default to provide the user with visual feedback.
Several limitations are documented in the TODO file accompanying the source. Please report any further bugs you find to http://bugs.freedesktop.org/.
Eric Anholt, with help from Keith Packard.