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GLSL ES2 behavior is explicitly undefined if an out-param is never written to: "If a function does not write to an out parameter, the value of the actual parameter is undefined when the function returns." We do see divergence here in practice: SkVM's behavior (the parameter is left alone) differs from my GPU's behavior (the parameter is zeroed out). SkSL will now report an error if an out parameter is never assigned-to. There is no control flow analysis performed, so we will not report cases where the out parameter is assigned-to on some paths but not others. (Technically the return-on-all-paths logic could be adapted for this, but it would be a fair amount of work.) Structs are currently exempt from the rule because custom mesh specifications require an `out` parameter for a Varyings struct, even if your mesh program doesn't need Varyings. Bug: skia:12867 Change-Id: Ie828d3ce91c2c67e008ae304fdb163ffa88d744c Reviewed-on: https://skia-review.googlesource.com/c/skia/+/500440 Auto-Submit: John Stiles <johnstiles@google.com> Reviewed-by: Brian Osman <brianosman@google.com> Commit-Queue: Brian Osman <brianosman@google.com> |
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| .. | ||
| android_fonts | ||
| diff_canvas_traces | ||
| empty_images | ||
| fonts | ||
| icc_profiles | ||
| images | ||
| invalid_images | ||
| nima | ||
| particles | ||
| skottie | ||
| sksl | ||
| text | ||
| Cowboy.svg | ||
| crbug769134.fil | ||
| nov-talk-sequence.txt | ||
| pdf_command_stream.txt | ||
| README | ||
The resources directory includes some third party content used by Skia. Licenses for that code are included in this file. Openclipart Openclipart uses the Creative Commons Zero 1.0 Public Domain License every time an artist uploads a piece of clipart to Openclipart to make it clear the artist is releasing the creative work for anyone to use for any reason, even commercially. This act of "sharing" is the foundation Openclipart is based upon. More details on the license can be found at https://creativecommons.org/publicdomain/zero/1.0/. LGPL or compatible (as implied by inclusion in KDE SVN) http://websvn.kde.org/trunk/tests/ksvgtests/custom/cowboy.svg