[PATCH 1/3] [v2] gdiplus/tests: Add more PNG color format tests.

[Akihiro Sagawa]

In v2,
 - Fix test failures on broken XP, Vista, 2003.
 - Fix the expected value for 1bpp gray scale image with tRNS chunk.
 - Introduce color_space_mask to test other color space flags aren't set.

Signed-off-by: Akihiro Sagawa 
---
 dlls/gdiplus/tests/image.c | 226 +++++++++++++++++++++++++++++++++++++--------
 1 file changed, 185 insertions(+), 41 deletions(-)