diff options
| author | Matthieu Herrb <matthieu@cvs.openbsd.org> | 2016-11-03 10:55:17 +0000 |
|---|---|---|
| committer | Matthieu Herrb <matthieu@cvs.openbsd.org> | 2016-11-03 10:55:17 +0000 |
| commit | 72fa6bf32d2ac2e7c8f638ba2d390f1fb79ff68e (patch) | |
| tree | cba1069dd611f903c7037c0992c5b51b40fb8f57 /lib/libXrender/doc/libXrender.txt | |
| parent | 17628f52ac9082bf73f4ecead3e2df385b3e58e2 (diff) | |
Update to libXrender 0.9.10
Diffstat (limited to 'lib/libXrender/doc/libXrender.txt')
| -rw-r--r-- | lib/libXrender/doc/libXrender.txt | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/libXrender/doc/libXrender.txt b/lib/libXrender/doc/libXrender.txt index 27cc75d72..753ee9886 100644 --- a/lib/libXrender/doc/libXrender.txt +++ b/lib/libXrender/doc/libXrender.txt @@ -84,7 +84,8 @@ as a separate argument which marks the valid entries. 2.4 Colors The core protocol XColor type doesn't include an alpha component, so Xrender -has a separate type. +has a separate type. Note that XRender expects premultiplied alpha in all +cases except with the gradient operations. typedef struct { unsigned short red; @@ -526,6 +527,8 @@ conceptually built. 7.1 Composite XRenderComposite exposes the RenderComposite protocol request directly. +If a format with alpha is used, make sure it is premultiplied into the +color channels. void XRenderComposite (Display *dpy, |