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Fixed rendering of grayscale images with alpha channel on unaccelerated machines. Thanks, Sanel (STR #1703)

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git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@5888 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
This commit is contained in:
Matthias Melcher 2007-06-07 17:23:41 +00:00
parent a914d9c27f
commit 38cc8c2f4d
2 changed files with 3 additions and 1 deletions
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2
CHANGES
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@ -3,6 +3,8 @@ CHANGES IN FLTK 1.1.8
- Documentation fixes (STR #1454, STR #1455, STR #1456,
STR #1457, STR #1458, STR #1460, STR #1481, STR #1578,
STR #1639, STR #1645, STR #1644)
- Fixed rendering of grayscale images with alpha
channel (STR #1703)
- Fixed occasional incomplete refresh (STR #1681)
- Improved fl_down, fl_frame, added fl_box (STR #1678)
- Fixed selection of submenu items in

2
src/Fl_Image.cxx
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@ -344,7 +344,7 @@ static void alpha_blend(Fl_RGB_Image *img, int X, int Y, int W, int H, int cx, i
// Composite grayscale + alpha over RGB...
// Composite RGBA over RGB...
for (int y = H; y > 0; y--, srcptr+=srcskip)
for (int x = W; x > 0; x--, dstptr+=3) {
for (int x = W; x > 0; x--) {
srcg = *srcptr++;
srca = *srcptr++;