static void VFilter8iSSE2(uint8_t* u, uint8_t* v, int stride,
int thresh, int ithresh, int hev_thresh) {
__m128i mask;
__m128i t1, t2, p1, p0, q0, q1;
// Load p3, p2, p1, p0
LOADUV_H_EDGES4(u, v, stride, t2, t1, p1, p0);
MAX_DIFF1(t2, t1, p1, p0, mask);
u += 4 * stride;
v += 4 * stride;
// Load q0, q1, q2, q3
LOADUV_H_EDGES4(u, v, stride, q0, q1, t1, t2);
MAX_DIFF2(t2, t1, q1, q0, mask);
COMPLEX_FL_MASK(p1, p0, q0, q1, thresh, ithresh, mask);
DoFilter4(&p1, &p0, &q0, &q1, &mask, hev_thresh);
// Store
STOREUV(p1, u, v, -2 * stride);
STOREUV(p0, u, v, -1 * stride);
STOREUV(q0, u, v, 0 * stride);
STOREUV(q1, u, v, 1 * stride);
}
static void HFilter16iSSE2(uint8_t* p, int stride,
int thresh, int ithresh, int hev_thresh) {
int k;
uint8_t* b;
__m128i mask;
__m128i t1, t2, p1, p0, q0, q1;
for (k = 3; k > 0; --k) {
b = p;
Load16x4(b, b + 8 * stride, stride, &t2, &t1, &p1, &p0); // p3, p2, p1, p0
MAX_DIFF1(t2, t1, p1, p0, mask);
b += 4; // beginning of q0
Load16x4(b, b + 8 * stride, stride, &q0, &q1, &t1, &t2); // q0, q1, q2, q3
MAX_DIFF2(t2, t1, q1, q0, mask);
COMPLEX_FL_MASK(p1, p0, q0, q1, thresh, ithresh, mask);
DoFilter4(&p1, &p0, &q0, &q1, &mask, hev_thresh);
b -= 2; // beginning of p1
Store16x4(b, b + 8 * stride, stride, &p1, &p0, &q0, &q1);
p += 4;
}
}
// on three inner edges
static void VFilter16iSSE2(uint8_t* p, int stride,
int thresh, int ithresh, int hev_thresh) {
int k;
__m128i mask;
__m128i t1, t2, p1, p0, q0, q1;
for (k = 3; k > 0; --k) {
// Load p3, p2, p1, p0
LOAD_H_EDGES4(p, stride, t2, t1, p1, p0);
MAX_DIFF1(t2, t1, p1, p0, mask);
p += 4 * stride;
// Load q0, q1, q2, q3
LOAD_H_EDGES4(p, stride, q0, q1, t1, t2);
MAX_DIFF2(t2, t1, q1, q0, mask);
COMPLEX_FL_MASK(p1, p0, q0, q1, thresh, ithresh, mask);
DoFilter4(&p1, &p0, &q0, &q1, &mask, hev_thresh);
// Store
_mm_storeu_si128((__m128i*)&p[-2 * stride], p1);
_mm_storeu_si128((__m128i*)&p[-1 * stride], p0);
_mm_storeu_si128((__m128i*)&p[0 * stride], q0);
_mm_storeu_si128((__m128i*)&p[1 * stride], q1);
}
}
static void HFilter16i(uint8_t* p, int stride,
int thresh, int ithresh, int hev_thresh) {
int k;
__m128i p3, p2, p1, p0; // loop invariants
Load16x4(p, p + 8 * stride, stride, &p3, &p2, &p1, &p0); // prologue
for (k = 3; k > 0; --k) {
__m128i mask, tmp1, tmp2;
uint8_t* const b = p + 2; // beginning of p1
p += 4; // beginning of q0 (and next span)
MAX_DIFF1(p3, p2, p1, p0, mask); // compute partial mask
Load16x4(p, p + 8 * stride, stride, &p3, &p2, &tmp1, &tmp2);
MAX_DIFF2(p3, p2, tmp1, tmp2, mask);
ComplexMask(&p1, &p0, &p3, &p2, thresh, ithresh, &mask);
DoFilter4(&p1, &p0, &p3, &p2, &mask, hev_thresh);
Store16x4(&p1, &p0, &p3, &p2, b, b + 8 * stride, stride);
// rotate samples
p1 = tmp1;
p0 = tmp2;
}
}
// on three inner edges
static void VFilter16i(uint8_t* p, int stride,
int thresh, int ithresh, int hev_thresh) {
int k;
__m128i p3, p2, p1, p0; // loop invariants
LOAD_H_EDGES4(p, stride, p3, p2, p1, p0); // prologue
for (k = 3; k > 0; --k) {
__m128i mask, tmp1, tmp2;
uint8_t* const b = p + 2 * stride; // beginning of p1
p += 4 * stride;
MAX_DIFF1(p3, p2, p1, p0, mask); // compute partial mask
LOAD_H_EDGES4(p, stride, p3, p2, tmp1, tmp2);
MAX_DIFF2(p3, p2, tmp1, tmp2, mask);
// p3 and p2 are not just temporary variables here: they will be
// re-used for next span. And q2/q3 will become p1/p0 accordingly.
ComplexMask(&p1, &p0, &p3, &p2, thresh, ithresh, &mask);
DoFilter4(&p1, &p0, &p3, &p2, &mask, hev_thresh);
// Store
_mm_storeu_si128((__m128i*)&b[0 * stride], p1);
_mm_storeu_si128((__m128i*)&b[1 * stride], p0);
_mm_storeu_si128((__m128i*)&b[2 * stride], p3);
_mm_storeu_si128((__m128i*)&b[3 * stride], p2);
// rotate samples
p1 = tmp1;
p0 = tmp2;
}
}
static void HFilter8iSSE2(uint8_t* u, uint8_t* v, int stride,
int thresh, int ithresh, int hev_thresh) {
__m128i mask;
__m128i t1, t2, p1, p0, q0, q1;
Load16x4(u, v, stride, &t2, &t1, &p1, &p0); // p3, p2, p1, p0
MAX_DIFF1(t2, t1, p1, p0, mask);
u += 4; // beginning of q0
v += 4;
Load16x4(u, v, stride, &q0, &q1, &t1, &t2); // q0, q1, q2, q3
MAX_DIFF2(t2, t1, q1, q0, mask);
COMPLEX_FL_MASK(p1, p0, q0, q1, thresh, ithresh, mask);
DoFilter4(&p1, &p0, &q0, &q1, &mask, hev_thresh);
u -= 2; // beginning of p1
v -= 2;
Store16x4(u, v, stride, &p1, &p0, &q0, &q1);
}
