The Bayer matrix 8x8 used in DITHER_COPY macro is table dithers[5].
Remaining dithers[] matrixes are generated from this matrix by
downshift or upshift.
This patch fixes dithers[6] and dithers[7] matrixes -- they were
too dark.
Signed-off-by: Mateusz Brzostek <mateu...@poczta.onet.pl>
---
libswscale/swscale_unscaled.c | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)
diff --git a/libswscale/swscale_unscaled.c b/libswscale/swscale_unscaled.c
index 5d81cd5af9..6ffde1ec59 100644
--- a/libswscale/swscale_unscaled.c
+++ b/libswscale/swscale_unscaled.c
@@ -90,15 +90,6 @@ DECLARE_ALIGNED(8, static const uint8_t, dithers)[8][8][8]={
{ 48, 0, 60, 12, 51, 3, 63, 15,},
{ 24, 40, 20, 36, 27, 43, 23, 39,},
{ 56, 8, 52, 4, 59, 11, 55, 7,},
-},{
- { 18, 34, 30, 46, 17, 33, 29, 45,},
- { 50, 2, 62, 14, 49, 1, 61, 13,},
- { 26, 42, 22, 38, 25, 41, 21, 37,},
- { 58, 10, 54, 6, 57, 9, 53, 5,},
- { 16, 32, 28, 44, 19, 35, 31, 47,},
- { 48, 0, 60, 12, 51, 3, 63, 15,},
- { 24, 40, 20, 36, 27, 43, 23, 39,},
- { 56, 8, 52, 4, 59, 11, 55, 7,},
},{
{ 36, 68, 60, 92, 34, 66, 58, 90,},
{ 100, 4,124, 28, 98, 2,122, 26,},
@@ -108,6 +99,15 @@ DECLARE_ALIGNED(8, static const uint8_t, dithers)[8][8][8]={
{ 96, 0,120, 24,102, 6,126, 30,},
{ 48, 80, 40, 72, 54, 86, 46, 78,},
{ 112, 16,104, 8,118, 22,110, 14,},
+},{
+ { 72,136,120,184, 68,132,116,180,},
+ { 200, 8,248, 56,196, 4,244, 52,},
+ { 104,168, 88,152,100,164, 84,148,},
+ { 232, 40,216, 24,228, 36,212, 20,},
+ { 64,128,112,176, 76,140,124,188,},
+ { 192, 0,240, 48,204, 12,252, 60,},
+ { 96,160, 80,144,108,172, 92,156,},
+ { 224, 32,208, 16,236, 44,220, 28,},
}};
--
2.14.2.windows.3
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