* 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
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;
*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;
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,
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,
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);
*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);
}
}
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,
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 */
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);
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);
}
}
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,
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,
projects / platform / upstream / libvpx.git / commitdiff