From: Lajos Molnar <lajos@xxxxxx>
coef3_M8 had an incorrect phase with 50% more intensity. This resulted in
banding on slightly down/upscaled images. Fixed a rounding error in coef5_M9.
Also removed ARRAY_LEN macro as ARRAY_SIZE is the standard linux one.
Signed-off-by: Lajos Molnar <lajos@xxxxxx>
Signed-off-by: Archit Taneja <archit@xxxxxx>
---
drivers/video/omap2/dss/dispc_coefs.c | 9 ++++-----
1 files changed, 4 insertions(+), 5 deletions(-)
diff --git a/drivers/video/omap2/dss/dispc_coefs.c b/drivers/video/omap2/dss/dispc_coefs.c
index 069bccb..038c15b 100644
--- a/drivers/video/omap2/dss/dispc_coefs.c
+++ b/drivers/video/omap2/dss/dispc_coefs.c
@@ -19,14 +19,13 @@
#include <linux/kernel.h>
#include <video/omapdss.h>
-#include "dispc.h"
-#define ARRAY_LEN(array) (sizeof(array) / sizeof(array[0]))
+#include "dispc.h"
static const struct dispc_coef coef3_M8[8] = {
{ 0, 0, 128, 0, 0 },
{ 0, -4, 123, 9, 0 },
- { 0, -4, 108, 87, 0 },
+ { 0, -4, 108, 24, 0 },
{ 0, -2, 87, 43, 0 },
{ 0, 64, 64, 0, 0 },
{ 0, 43, 87, -2, 0 },
@@ -168,7 +167,7 @@ static const struct dispc_coef coef5_M8[8] = {
static const struct dispc_coef coef5_M9[8] = {
{ -3, 10, 114, 10, -3 },
- { -6, 24, 110, 0, -1 },
+ { -6, 24, 111, 0, -1 },
{ -8, 40, 103, -7, 0 },
{ -11, 58, 91, -11, 1 },
{ 0, -12, 76, 76, -12 },
@@ -319,7 +318,7 @@ const struct dispc_coef *dispc_ovl_get_scale_coef(int inc, int five_taps)
};
inc /= 128;
- for (i = 0; i < ARRAY_LEN(coefs); ++i)
+ for (i = 0; i < ARRAY_SIZE(coefs); ++i)
if (inc >= coefs[i].Mmin && inc <= coefs[i].Mmax)
return five_taps ? coefs[i].coef_5 : coefs[i].coef_3;
return NULL;
--
1.7.5.4
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