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| author | Matthias Clasen <mclasen@redhat.com> | 2022-12-24 07:22:39 -0500 |
|---|---|---|
| committer | Matthias Clasen <mclasen@redhat.com> | 2022-12-24 07:22:39 -0500 |
| commit | 1df5969ef67fe305f6764446e39dd7d62891c8fc (patch) | |
| tree | 7b5bb36446d90a0df8fa7f1aed4728f3e235fb5d /src/cairo.c | |
| parent | 12cd2bcbb260f4ed64a72b64bd2fdd593f683bbc (diff) | |
| download | cairo-1df5969ef67fe305f6764446e39dd7d62891c8fc.tar.gz | |
Document whether colors are premultiplied
For the various APIs that take or return
RGBA colors, make it explicit that they are
unpremultiplied.
Diffstat (limited to 'src/cairo.c')
| -rw-r--r-- | src/cairo.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/cairo.c b/src/cairo.c index f55429405..e9c4bb9a8 100644 --- a/src/cairo.c +++ b/src/cairo.c @@ -918,6 +918,8 @@ slim_hidden_def (cairo_set_source_rgb); * range 0 to 1. If the values passed in are outside that range, they * will be clamped. * + * Note that the color and alpha values are not premultiplied. + * * The default source pattern is opaque black, (that is, it is * equivalent to cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 1.0)). * |