[PATCH] gdiplus: in CompositingModeSourceCopy, fully transparent pixels are drawn black
Damjan Jovanovic
damjan.jov at gmail.com
Wed Mar 4 19:35:40 CST 2020
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=42585
Signed-off-by: Damjan Jovanovic <damjan.jov at gmail.com>
---
dlls/gdiplus/graphics.c | 7 ++++++-
dlls/gdiplus/tests/image.c | 2 +-
2 files changed, 7 insertions(+), 2 deletions(-)
-------------- next part --------------
diff --git a/dlls/gdiplus/graphics.c b/dlls/gdiplus/graphics.c
index af95c7aeea..5126f94607 100644
--- a/dlls/gdiplus/graphics.c
+++ b/dlls/gdiplus/graphics.c
@@ -384,7 +384,12 @@ static GpStatus alpha_blend_bmp_pixels(GpGraphics *graphics, INT dst_x, INT dst_
src_color = ((ARGB*)(src + src_stride * y))[x];
if (comp_mode == CompositingModeSourceCopy)
- GdipBitmapSetPixel(dst_bitmap, x+dst_x, y+dst_y, src_color);
+ {
+ if (!(src_color & 0xff000000))
+ GdipBitmapSetPixel(dst_bitmap, x+dst_x, y+dst_y, 0);
+ else
+ GdipBitmapSetPixel(dst_bitmap, x+dst_x, y+dst_y, src_color);
+ }
else
{
if (!(src_color & 0xff000000))
diff --git a/dlls/gdiplus/tests/image.c b/dlls/gdiplus/tests/image.c
index bbb9365edb..0b4ae3cd9c 100644
--- a/dlls/gdiplus/tests/image.c
+++ b/dlls/gdiplus/tests/image.c
@@ -4491,7 +4491,7 @@ static void test_DrawImage_SourceCopy(void)
expect(0, dst_pixels[0]);
expect(0xffff0000, dst_pixels[1]);
expect(0, dst_pixels[2]);
- todo_wine expect(0, dst_pixels[3]);
+ expect(0, dst_pixels[3]);
status = GdipDeleteGraphics(graphics);
expect(Ok, status);
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