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video: change rgb pattern matrix coefficient from 601 to 709

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PD#167037: video: optimize rgb2yuv for 709

Change-Id: I25d9085ddcdde467ac8f33b4795488f3f395ced2
Signed-off-by: Bencheng Jing <bencheng.jing@amlogic.com>
This commit is contained in:
Bencheng Jing
2018-05-24 15:29:35 +08:00
committed by Yixun Lan
parent 278ced8afb
commit 25d1c8cd56
1 changed files with 6 additions and 4 deletions
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10
drivers/amlogic/media/video_sink/video.c
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@@ -7689,9 +7689,9 @@ static u32 rgb2yuv(u32 rgb)
int b = rgb & 0xff;
int y, u, v;
y = ((66*r + 129*g + 25*b + 128) >> 8) + 16;
u = ((-38*r - 74*g + 112*b + 128) >> 8) + 128;
v = ((112*r - 94*g - 18*b + 128) >> 8) + 128;
y = ((47*r + 157*g + 16*b + 128) >> 8) + 16;
u = ((-26*r - 87*g + 112*b + 128) >> 8) + 128;
v = ((112*r - 102*g - 10*b + 128) >> 8) + 128;
return (y << 16) | (u << 8) | v;
}
@@ -7766,6 +7766,7 @@ static ssize_t video_rgb_screen_store(struct class *cla,
const char *buf, size_t count)
{
size_t r;
u32 yuv_eight;
/* unsigned data = 0x0; */
r = kstrtoint(buf, 0, &rgb_screen);
@@ -7797,12 +7798,13 @@ static ssize_t video_rgb_screen_store(struct class *cla,
data &= (~VPP_VD2_POSTBLEND);
#endif
/* show test screen YUV blend*/
yuv_eight = rgb2yuv(rgb_screen & 0x00ffffff);
if (is_meson_gxtvbb_cpu()) {
WRITE_VCBUS_REG(VPP_DUMMY_DATA1,
rgb_screen & 0x00ffffff);
} else if (cpu_after_eq(MESON_CPU_MAJOR_ID_TXL)) {
WRITE_VCBUS_REG(VPP_DUMMY_DATA1,
rgb2yuv(rgb_screen & 0x00ffffff));
eight2ten(yuv_eight & 0x00ffffff));
}
/* WRITE_VCBUS_REG(VPP_MISC, data); */