[PATCH 4/4] windowscodecs: Fix WriteSource() for GIF encoder.

[Ziqing Hui]

Signed-off-by: Ziqing Hui <zhui(a)codeweavers.com>
---
 dlls/windowscodecs/gifformat.c       | 12 ++++++++++++
 dlls/windowscodecs/tests/converter.c |  3 +--
 2 files changed, 13 insertions(+), 2 deletions(-)