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| author | Přemysl Eric Janouch <p@janouch.name> | 2021-11-26 20:54:08 +0100 |
|---|---|---|
| committer | Přemysl Eric Janouch <p@janouch.name> | 2021-11-26 20:54:41 +0100 |
| commit | 18e96d8c9dd6b0346514121facf8137f13ccd6dc (patch) | |
| tree | 96db29d63a69be5cab71c907822a6e4899d0c59b /fastiv-io.h | |
| parent | bd7f2f8c987772704a5889790b2dc06fa087ee62 (diff) | |
| download | fiv-18e96d8c9dd6b0346514121facf8137f13ccd6dc.tar.gz fiv-18e96d8c9dd6b0346514121facf8137f13ccd6dc.tar.xz fiv-18e96d8c9dd6b0346514121facf8137f13ccd6dc.zip | |
Allow frame iteration in both directions
Diffstat (limited to 'fastiv-io.h')
| -rw-r--r-- | fastiv-io.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fastiv-io.h b/fastiv-io.h index 7bce925..20fa4f6 100644 --- a/fastiv-io.h +++ b/fastiv-io.h @@ -37,6 +37,10 @@ extern cairo_user_data_key_t fastiv_io_key_icc; /// The next frame in a sequence, as a surface, in a chain, pre-composited. /// There is no wrap-around. extern cairo_user_data_key_t fastiv_io_key_frame_next; +/// The previous frame in a sequence, as a surface, in a chain, pre-composited. +/// This is a weak pointer that wraps around, and needn't be present +/// for static images. +extern cairo_user_data_key_t fastiv_io_key_frame_previous; /// Frame duration in milliseconds as an intptr_t. extern cairo_user_data_key_t fastiv_io_key_frame_duration; /// How many times to repeat the animation, or zero for +inf, as a uintptr_t. |