Commit 1c43e643 authored by Dmitry Kovalev's avatar Dmitry Kovalev
Browse files

Removing simple loopfilter and code duplication from loopfilter code.

Change-Id: Ib19352e391408507f2237985501406900a355964
parent e5f71520
......@@ -49,9 +49,6 @@ struct loop_filter_info {
void sym(uint8_t *y, uint8_t *u, uint8_t *v, \
int ystride, int uv_stride, struct loop_filter_info *lfi)
#define prototype_simple_loopfilter(sym) \
void sym(uint8_t *y, int ystride, const unsigned char *blimit)
#if ARCH_X86 || ARCH_X86_64
#include "x86/vp9_loopfilter_x86.h"
#endif
......
......@@ -8,15 +8,13 @@
* be found in the AUTHORS file in the root of the source tree.
*/
#include <stdlib.h>
#include "vpx_config.h"
#include "vp9/common/vp9_common.h"
#include "vp9/common/vp9_loopfilter.h"
#include "vp9/common/vp9_onyxc_int.h"
static INLINE int8_t signed_char_clamp(int t) {
t = (t < -128 ? -128 : t);
t = (t > 127 ? 127 : t);
return (int8_t) t;
return (int8_t)clamp(t, -128, 127);
}
// should we apply any filter at all: 11111111 yes, 00000000 no
......@@ -36,7 +34,7 @@ static INLINE int8_t filter_mask(uint8_t limit, uint8_t blimit,
return ~mask;
}
// is there high variance internal edge: 11111111 yes, 00000000 no
// is there high edge variance internal edge: 11111111 yes, 00000000 no
static INLINE int8_t hevmask(uint8_t thresh, uint8_t p1, uint8_t p0,
uint8_t q0, uint8_t q1) {
int8_t hev = 0;
......@@ -68,12 +66,9 @@ static INLINE void filter(int8_t mask, uint8_t hev, uint8_t *op1,
*oq0 = signed_char_clamp(qs0 - filter1) ^ 0x80;
*op0 = signed_char_clamp(ps0 + filter2) ^ 0x80;
filter = filter1;
// outer tap adjustments
filter += 1;
filter >>= 1;
filter &= ~hev;
filter = ((filter1 + 1) >> 1) & ~hev;
*oq1 = signed_char_clamp(qs1 - filter) ^ 0x80;
*op1 = signed_char_clamp(ps1 + filter) ^ 0x80;
......@@ -84,23 +79,19 @@ void vp9_loop_filter_horizontal_edge_c(uint8_t *s, int p /* pitch */,
const uint8_t *limit,
const uint8_t *thresh,
int count) {
int i = 0;
int i;
// loop filter designed to work using chars so that we can make maximum use
// of 8 bit simd instructions.
do {
const int8_t mask = filter_mask(limit[0], blimit[0],
s[-4 * p], s[-3 * p], s[-2 * p], s[-1 * p],
s[0 * p], s[1 * p], s[2 * p], s[3 * p]);
// high edge variance
const int8_t hev = hevmask(thresh[0],
s[-2 * p], s[-1 * p], s[0 * p], s[1 * p]);
for (i = 0; i < 8 * count; ++i) {
const uint8_t p3 = s[-4 * p], p2 = s[-3 * p], p1 = s[-2 * p], p0 = s[-p];
const uint8_t q0 = s[0 * p], q1 = s[1 * p], q2 = s[2 * p], q3 = s[3 * p];
const int8_t mask = filter_mask(*limit, *blimit,
p3, p2, p1, p0, q0, q1, q2, q3);
const int8_t hev = hevmask(*thresh, p1, p0, q0, q1);
filter(mask, hev, s - 2 * p, s - 1 * p, s, s + 1 * p);
++s;
} while (++i < count * 8);
}
}
void vp9_loop_filter_vertical_edge_c(uint8_t *s, int pitch,
......@@ -108,21 +99,21 @@ void vp9_loop_filter_vertical_edge_c(uint8_t *s, int pitch,
const uint8_t *limit,
const uint8_t *thresh,
int count) {
int i = 0;
int i;
// loop filter designed to work using chars so that we can make maximum use
// of 8 bit simd instructions.
do {
const int8_t mask = filter_mask(limit[0], blimit[0],
s[-4], s[-3], s[-2], s[-1],
s[0], s[1], s[2], s[3]);
// high edge variance
const int8_t hev = hevmask(thresh[0], s[-2], s[-1], s[0], s[1]);
for (i = 0; i < 8 * count; ++i) {
const uint8_t p3 = s[-4], p2 = s[-3], p1 = s[-2], p0 = s[-1];
const uint8_t q0 = s[0], q1 = s[1], q2 = s[2], q3 = s[3];
const int8_t mask = filter_mask(*limit, *blimit,
p3, p2, p1, p0, q0, q1, q2, q3);
const int8_t hev = hevmask(*thresh, p1, p0, q0, q1);
filter(mask, hev, s - 2, s - 1, s, s + 1);
s += pitch;
} while (++i < count * 8);
}
}
static INLINE int8_t flatmask4(uint8_t thresh,
uint8_t p3, uint8_t p2,
uint8_t p1, uint8_t p0,
......@@ -157,14 +148,8 @@ static INLINE void mbfilter(int8_t mask, uint8_t hev, uint8_t flat,
uint8_t *oq2, uint8_t *oq3) {
// use a 7 tap filter [1, 1, 1, 2, 1, 1, 1] for flat line
if (flat && mask) {
const uint8_t p3 = *op3;
const uint8_t p2 = *op2;
const uint8_t p1 = *op1;
const uint8_t p0 = *op0;
const uint8_t q0 = *oq0;
const uint8_t q1 = *oq1;
const uint8_t q2 = *oq2;
const uint8_t q3 = *oq3;
const uint8_t p3 = *op3, p2 = *op2, p1 = *op1, p0 = *op0;
const uint8_t q0 = *oq0, q1 = *oq1, q2 = *oq2, q3 = *oq3;
*op2 = ROUND_POWER_OF_TWO(p3 + p3 + p3 + p2 + p2 + p1 + p0 + q0, 3);
*op1 = ROUND_POWER_OF_TWO(p3 + p3 + p2 + p1 + p1 + p0 + q0 + q1, 3);
......@@ -173,33 +158,7 @@ static INLINE void mbfilter(int8_t mask, uint8_t hev, uint8_t flat,
*oq1 = ROUND_POWER_OF_TWO(p1 + p0 + q0 + q1 + q1 + q2 + q3 + q3, 3);
*oq2 = ROUND_POWER_OF_TWO(p0 + q0 + q1 + q2 + q2 + q3 + q3 + q3, 3);
} else {
int8_t filter1, filter2;
const int8_t ps1 = (int8_t) *op1 ^ 0x80;
const int8_t ps0 = (int8_t) *op0 ^ 0x80;
const int8_t qs0 = (int8_t) *oq0 ^ 0x80;
const int8_t qs1 = (int8_t) *oq1 ^ 0x80;
// add outer taps if we have high edge variance
int8_t filter = signed_char_clamp(ps1 - qs1) & hev;
// inner taps
filter = signed_char_clamp(filter + 3 * (qs0 - ps0)) & mask;
filter1 = signed_char_clamp(filter + 4) >> 3;
filter2 = signed_char_clamp(filter + 3) >> 3;
*oq0 = signed_char_clamp(qs0 - filter1) ^ 0x80;
*op0 = signed_char_clamp(ps0 + filter2) ^ 0x80;
filter = filter1;
// outer tap adjustments
filter += 1;
filter >>= 1;
filter &= ~hev;
*oq1 = signed_char_clamp(qs1 - filter) ^ 0x80;
*op1 = signed_char_clamp(ps1 + filter) ^ 0x80;
filter(mask, hev, op1, op0, oq0, oq1);
}
}
......@@ -208,28 +167,23 @@ void vp9_mbloop_filter_horizontal_edge_c(uint8_t *s, int p,
const uint8_t *limit,
const uint8_t *thresh,
int count) {
int i = 0;
int i;
// loop filter designed to work using chars so that we can make maximum use
// of 8 bit simd instructions.
do {
const int8_t mask = filter_mask(limit[0], blimit[0],
s[-4 * p], s[-3 * p], s[-2 * p], s[-1 * p],
s[ 0 * p], s[ 1 * p], s[ 2 * p], s[ 3 * p]);
const int8_t hev = hevmask(thresh[0],
s[-2 * p], s[-1 * p], s[0 * p], s[1 * p]);
const int8_t flat = flatmask4(1,
s[-4 * p], s[-3 * p], s[-2 * p], s[-1 * p],
s[ 0 * p], s[ 1 * p], s[ 2 * p], s[ 3 * p]);
for (i = 0; i < 8 * count; ++i) {
const uint8_t p3 = s[-4 * p], p2 = s[-3 * p], p1 = s[-2 * p], p0 = s[-p];
const uint8_t q0 = s[0 * p], q1 = s[1 * p], q2 = s[2 * p], q3 = s[3 * p];
const int8_t mask = filter_mask(*limit, *blimit,
p3, p2, p1, p0, q0, q1, q2, q3);
const int8_t hev = hevmask(*thresh, p1, p0, q0, q1);
const int8_t flat = flatmask4(1, p3, p2, p1, p0, q0, q1, q2, q3);
mbfilter(mask, hev, flat,
s - 4 * p, s - 3 * p, s - 2 * p, s - 1 * p,
s, s + 1 * p, s + 2 * p, s + 3 * p);
++s;
} while (++i < count * 8);
}
}
void vp9_mbloop_filter_vertical_edge_c(uint8_t *s, int pitch,
......@@ -237,49 +191,19 @@ void vp9_mbloop_filter_vertical_edge_c(uint8_t *s, int pitch,
const uint8_t *limit,
const uint8_t *thresh,
int count) {
int i = 0;
do {
const int8_t mask = filter_mask(limit[0], blimit[0],
s[-4], s[-3], s[-2], s[-1],
s[0], s[1], s[2], s[3]);
const int8_t hev = hevmask(thresh[0], s[-2], s[-1], s[0], s[1]);
const int8_t flat = flatmask4(1, s[-4], s[-3], s[-2], s[-1],
s[ 0], s[ 1], s[ 2], s[ 3]);
int i;
for (i = 0; i < 8 * count; ++i) {
const uint8_t p3 = s[-4], p2 = s[-3], p1 = s[-2], p0 = s[-1];
const uint8_t q0 = s[0], q1 = s[1], q2 = s[2], q3 = s[3];
const int8_t mask = filter_mask(*limit, *blimit,
p3, p2, p1, p0, q0, q1, q2, q3);
const int8_t hev = hevmask(thresh[0], p1, p0, q0, q1);
const int8_t flat = flatmask4(1, p3, p2, p1, p0, q0, q1, q2, q3);
mbfilter(mask, hev, flat, s - 4, s - 3, s - 2, s - 1,
s, s + 1, s + 2, s + 3);
s += pitch;
} while (++i < count * 8);
}
// should we apply any filter at all: 11111111 yes, 00000000 no
static INLINE int8_t simple_filter_mask(uint8_t blimit,
uint8_t p1, uint8_t p0,
uint8_t q0, uint8_t q1) {
return (abs(p0 - q0) * 2 + abs(p1 - q1) / 2 <= blimit) * -1;
}
static INLINE void simple_filter(int8_t mask,
uint8_t *op1, uint8_t *op0,
uint8_t *oq0, uint8_t *oq1) {
int8_t filter1, filter2;
const int8_t p1 = (int8_t) *op1 ^ 0x80;
const int8_t p0 = (int8_t) *op0 ^ 0x80;
const int8_t q0 = (int8_t) *oq0 ^ 0x80;
const int8_t q1 = (int8_t) *oq1 ^ 0x80;
int8_t filter = signed_char_clamp(p1 - q1);
filter = signed_char_clamp(filter + 3 * (q0 - p0));
filter &= mask;
// save bottom 3 bits so that we round one side +4 and the other +3
filter1 = signed_char_clamp(filter + 4) >> 3;
*oq0 = signed_char_clamp(q0 - filter1) ^ 0x80;
filter2 = signed_char_clamp(filter + 3) >> 3;
*op0 = signed_char_clamp(p0 + filter2) ^ 0x80;
}
}
/* Vertical MB Filtering */
......@@ -395,22 +319,11 @@ static INLINE void wide_mbfilter(int8_t mask, uint8_t hev,
uint8_t *oq7) {
// use a 15 tap filter [1,1,1,1,1,1,1,2,1,1,1,1,1,1,1] for flat line
if (flat2 && flat && mask) {
const uint8_t p7 = *op7;
const uint8_t p6 = *op6;
const uint8_t p5 = *op5;
const uint8_t p4 = *op4;
const uint8_t p3 = *op3;
const uint8_t p2 = *op2;
const uint8_t p1 = *op1;
const uint8_t p0 = *op0;
const uint8_t q0 = *oq0;
const uint8_t q1 = *oq1;
const uint8_t q2 = *oq2;
const uint8_t q3 = *oq3;
const uint8_t q4 = *oq4;
const uint8_t q5 = *oq5;
const uint8_t q6 = *oq6;
const uint8_t q7 = *oq7;
const uint8_t p7 = *op7, p6 = *op6, p5 = *op5, p4 = *op4,
p3 = *op3, p2 = *op2, p1 = *op1, p0 = *op0;
const uint8_t q0 = *oq0, q1 = *oq1, q2 = *oq2, q3 = *oq3,
q4 = *oq4, q5 = *oq5, q6 = *oq6, q7 = *oq7;
*op6 = ROUND_POWER_OF_TWO(p7 * 7 + p6 * 2 + p5 + p4 + p3 + p2 + p1 + p0 +
q0, 4);
......@@ -440,49 +353,8 @@ static INLINE void wide_mbfilter(int8_t mask, uint8_t hev,
q0 + q1 + q2 + q3 + q4 + q5 * 2 + q6 + q7 * 6, 4);
*oq6 = ROUND_POWER_OF_TWO(p0 +
q0 + q1 + q2 + q3 + q4 + q5 + q6 * 2 + q7 * 7, 4);
} else if (flat && mask) {
const uint8_t p3 = *op3;
const uint8_t p2 = *op2;
const uint8_t p1 = *op1;
const uint8_t p0 = *op0;
const uint8_t q0 = *oq0;
const uint8_t q1 = *oq1;
const uint8_t q2 = *oq2;
const uint8_t q3 = *oq3;
*op2 = ROUND_POWER_OF_TWO(p3 + p3 + p3 + p2 + p2 + p1 + p0 + q0, 3);
*op1 = ROUND_POWER_OF_TWO(p3 + p3 + p2 + p1 + p1 + p0 + q0 + q1, 3);
*op0 = ROUND_POWER_OF_TWO(p3 + p2 + p1 + p0 + p0 + q0 + q1 + q2, 3);
*oq0 = ROUND_POWER_OF_TWO(p2 + p1 + p0 + q0 + q0 + q1 + q2 + q3, 3);
*oq1 = ROUND_POWER_OF_TWO(p1 + p0 + q0 + q1 + q1 + q2 + q3 + q3, 3);
*oq2 = ROUND_POWER_OF_TWO(p0 + q0 + q1 + q2 + q2 + q3 + q3 + q3, 3);
} else {
int8_t filter1, filter2;
const int8_t ps1 = (int8_t) * op1 ^ 0x80;
const int8_t ps0 = (int8_t) * op0 ^ 0x80;
const int8_t qs0 = (int8_t) * oq0 ^ 0x80;
const int8_t qs1 = (int8_t) * oq1 ^ 0x80;
// add outer taps if we have high edge variance
int8_t filter = signed_char_clamp(ps1 - qs1) & hev;
// inner taps
filter = signed_char_clamp(filter + 3 * (qs0 - ps0)) & mask;
filter1 = signed_char_clamp(filter + 4) >> 3;
filter2 = signed_char_clamp(filter + 3) >> 3;
*oq0 = signed_char_clamp(qs0 - filter1) ^ 0x80;
*op0 = signed_char_clamp(ps0 + filter2) ^ 0x80;
filter = filter1;
// outer tap adjustments
filter += 1;
filter >>= 1;
filter &= ~hev;
*oq1 = signed_char_clamp(qs1 - filter) ^ 0x80;
*op1 = signed_char_clamp(ps1 + filter) ^ 0x80;
mbfilter(mask, hev, flat, op3, op2, op1, op0, oq0, oq1, oq2, oq3);
}
}
......@@ -491,25 +363,20 @@ void vp9_mb_lpf_horizontal_edge_w(uint8_t *s, int p,
const uint8_t *limit,
const uint8_t *thresh,
int count) {
int i = 0;
int i;
// loop filter designed to work using chars so that we can make maximum use
// of 8 bit simd instructions.
do {
const int8_t mask = filter_mask(limit[0], blimit[0],
s[-4 * p], s[-3 * p], s[-2 * p], s[-1 * p],
s[ 0 * p], s[ 1 * p], s[ 2 * p], s[ 3 * p]);
const int8_t hev = hevmask(thresh[0],
s[-2 * p], s[-1 * p], s[0 * p], s[1 * p]);
const int8_t flat = flatmask4(1,
s[-4 * p], s[-3 * p], s[-2 * p], s[-1 * p],
s[ 0 * p], s[ 1 * p], s[ 2 * p], s[ 3 * p]);
for (i = 0; i < 8 * count; ++i) {
const uint8_t p3 = s[-4 * p], p2 = s[-3 * p], p1 = s[-2 * p], p0 = s[-p];
const uint8_t q0 = s[0 * p], q1 = s[1 * p], q2 = s[2 * p], q3 = s[3 * p];
const int8_t mask = filter_mask(*limit, *blimit,
p3, p2, p1, p0, q0, q1, q2, q3);
const int8_t hev = hevmask(*thresh, p1, p0, q0, q1);
const int8_t flat = flatmask4(1, p3, p2, p1, p0, q0, q1, q2, q3);
const int8_t flat2 = flatmask5(1,
s[-8 * p], s[-7 * p], s[-6 * p], s[-5 * p], s[-1 * p],
s[ 0 * p], s[ 4 * p], s[ 5 * p], s[ 6 * p], s[ 7 * p]);
s[-8 * p], s[-7 * p], s[-6 * p], s[-5 * p], p0,
q0, s[4 * p], s[5 * p], s[6 * p], s[7 * p]);
wide_mbfilter(mask, hev, flat, flat2,
s - 8 * p, s - 7 * p, s - 6 * p, s - 5 * p,
......@@ -518,33 +385,31 @@ void vp9_mb_lpf_horizontal_edge_w(uint8_t *s, int p,
s + 4 * p, s + 5 * p, s + 6 * p, s + 7 * p);
++s;
} while (++i < count * 8);
}
}
void vp9_mb_lpf_vertical_edge_w(uint8_t *s, int p,
const uint8_t *blimit,
const uint8_t *limit,
const uint8_t *thresh,
int count) {
int i = 0;
do {
const int8_t mask = filter_mask(limit[0], blimit[0],
s[-4], s[-3], s[-2], s[-1],
s[0], s[1], s[2], s[3]);
const int8_t hev = hevmask(thresh[0], s[-2], s[-1], s[0], s[1]);
const int8_t flat = flatmask4(1, s[-4], s[-3], s[-2], s[-1],
s[ 0], s[ 1], s[ 2], s[ 3]);
const int8_t flat2 = flatmask5(1, s[-8], s[-7], s[-6], s[-5], s[-1],
s[ 0], s[ 4], s[ 5], s[ 6], s[ 7]);
int i;
for (i = 0; i < 8 * count; ++i) {
const uint8_t p3 = s[-4], p2 = s[-3], p1 = s[-2], p0 = s[-1];
const uint8_t q0 = s[0], q1 = s[1], q2 = s[2], q3 = s[3];
const int8_t mask = filter_mask(*limit, *blimit,
p3, p2, p1, p0, q0, q1, q2, q3);
const int8_t hev = hevmask(*thresh, p1, p0, q0, q1);
const int8_t flat = flatmask4(1, p3, p2, p1, p0, q0, q1, q2, q3);
const int8_t flat2 = flatmask5(1, s[-8], s[-7], s[-6], s[-5], p0,
q0, s[4], s[5], s[6], s[7]);
wide_mbfilter(mask, hev, flat, flat2,
s - 8, s - 7, s - 6, s - 5,
s - 4, s - 3, s - 2, s - 1,
s, s + 1, s + 2, s + 3,
s + 4, s + 5, s + 6, s + 7);
s - 8, s - 7, s - 6, s - 5, s - 4, s - 3, s - 2, s - 1,
s, s + 1, s + 2, s + 3, s + 4, s + 5, s + 6, s + 7);
s += p;
} while (++i < count * 8);
}
}
void vp9_lpf_mbv_w_c(uint8_t *y, uint8_t *u, uint8_t *v,
......
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