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

1 files changed, 1 insertions, 0 deletions

diff --git a/apps/recorder/bmp.h b/apps/recorder/bmp.h
index 31bd0730bd..3ddc3b66df 100644
--- a/apps/recorder/bmp.h
+++ b/apps/recorder/bmp.h
@@ -39,6 +39,7 @@ struct uint8_rgb {
     uint8_t blue;
     uint8_t green;
     uint8_t red;
+    uint8_t alpha;
 };
 
 struct dim {