summaryrefslogtreecommitdiffstats
path: root/firmware/export/lcd.h
diff options
context:
space:
mode:
authorThomas Martitz <kugel@rockbox.org>2011-11-08 21:36:49 +0000
committerThomas Martitz <kugel@rockbox.org>2011-11-08 21:36:49 +0000
commitf443e7bbf7771ce3a79b1c2116b9cf216f15938f (patch)
treeeeaf47216f88c811529ade5a7c27bd76203bb02b /firmware/export/lcd.h
parent13209604c1512658e729d0bd9f1c54cf3e53568d (diff)
downloadrockbox-f443e7bbf7771ce3a79b1c2116b9cf216f15938f.tar.gz
rockbox-f443e7bbf7771ce3a79b1c2116b9cf216f15938f.zip
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.h3
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;
};