[PATCH 1/2] windowscodecs/tests: Introduce create_and_init_encoder.

[Ziqing Hui]

We can't reuse same encoder object for all images. So we should create
a new encoder object for each test.

Signed-off-by: Ziqing Hui 
---
 dlls/windowscodecs/tests/ddsformat.c | 77 +++++++++++++++++-----------
 1 file changed, 47 insertions(+), 30 deletions(-)

[Esme Povirk (they/them)]

Signed-off-by: Esme Povirk