hermet pushed a commit to branch master.
http://git.enlightenment.org/core/efl.git/commit/?id=7a6eb2ea428b6dd7b02ae9cfbe4275f9a6fe612a
commit 7a6eb2ea428b6dd7b02ae9cfbe4275f9a6fe612a
Author: ChunEon Park <chuneon.p...@samsung.com>
Date: Mon Apr 6 21:58:07 2015 +0900
evas/common: improve evas_common_convert_argb_unpremul() computation.
prev logic increased the alpha channel by 1 so the unpremul resulted in the
color got too diff from the origin.
We can't avoid losing the rest values while dividing values in
premul/unpremul()
but this will recover the value better closed to origin value.
---
src/lib/evas/common/evas_convert_color.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/src/lib/evas/common/evas_convert_color.c
b/src/lib/evas/common/evas_convert_color.c
index e8a6b72..0f7975b 100644
--- a/src/lib/evas/common/evas_convert_color.c
+++ b/src/lib/evas/common/evas_convert_color.c
@@ -52,18 +52,18 @@ evas_common_convert_argb_unpremul(DATA32 *data, unsigned
int len)
while (data < de)
{
- DATA32 a = (*data >> 24) + 1;
+ DATA32 a = (*data >> 24);
if (p_val == *data) *data = p_res;
else
{
p_val = *data;
- if ((a > 1) && (a < 256))
+ if ((a > 0) && (a < 255))
*data = ARGB_JOIN(a,
(R_VAL(data) * 255) / a,
(G_VAL(data) * 255) / a,
(B_VAL(data) * 255) / a);
- else if (a == 1)
+ else if (a == 0)
*data = 0x00000000;
p_res = *data;
}
--
