diff options
| author | Thomas Martitz <kugel@rockbox.org> | 2011-11-08 21:36:49 +0000 |
|---|---|---|
| committer | Thomas Martitz <kugel@rockbox.org> | 2011-11-08 21:36:49 +0000 |
| commit | f443e7bbf7771ce3a79b1c2116b9cf216f15938f (patch) | |
| tree | eeaf47216f88c811529ade5a7c27bd76203bb02b /firmware/export/lcd.h | |
| parent | 13209604c1512658e729d0bd9f1c54cf3e53568d (diff) | |
Support for transparency in 32bit bitmaps on color targets.
This uses the alpha blending capabilities introduced with anti-aliased fonts
to draw bitmaps with transparency information. The bmp loader is extended to read
this information (pass FORMAT_TRANSPARENT in format). The alpha information will
be used when drawing the bitmap.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30937 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/export/lcd.h')
| -rw-r--r-- | firmware/export/lcd.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/firmware/export/lcd.h b/firmware/export/lcd.h index 47ea94bca9..ad579820ad 100644 --- a/firmware/export/lcd.h +++ b/firmware/export/lcd.h @@ -468,6 +468,9 @@ struct bitmap { int format; unsigned char *maskdata; #endif +#ifdef HAVE_LCD_COLOR + int alpha_offset; /* byte-offset of alpha channel in data */ +#endif unsigned char *data; }; |