[PATCH 3/3] windowscodecs: Add support for decoding uncompressed DDS image.

[Ziqing Hui]

For uncompressed DDS image, a block means a pixel.

Signed-off-by: Ziqing Hui 
---
 dlls/windowscodecs/ddsformat.c       | 78 ++++++++++++++++++----------
 dlls/windowscodecs/tests/ddsformat.c | 10 ----
 2 files changed, 50 insertions(+), 38 deletions(-)