static void var_filter_block2d_bil_w16(const uint8_t *src_ptr,
uint8_t *output_ptr,
unsigned int src_pixels_per_line,
int pixel_step,
unsigned int output_height,
unsigned int output_width,
const uint8_t *filter) {
const uint8x8_t f0 = vmov_n_u8(filter[0]);
const uint8x8_t f1 = vmov_n_u8(filter[1]);
unsigned int i, j;
for (i = 0; i < output_height; ++i) {
for (j = 0; j < output_width; j += 16) {
const uint8x16_t src_0 = vld1q_u8(&src_ptr[j]);
const uint8x16_t src_1 = vld1q_u8(&src_ptr[j + pixel_step]);
const uint16x8_t a = vmull_u8(vget_low_u8(src_0), f0);
const uint16x8_t b = vmlal_u8(a, vget_low_u8(src_1), f1);
const uint8x8_t out_lo = vrshrn_n_u16(b, FILTER_BITS);
const uint16x8_t c = vmull_u8(vget_high_u8(src_0), f0);
const uint16x8_t d = vmlal_u8(c, vget_high_u8(src_1), f1);
const uint8x8_t out_hi = vrshrn_n_u16(d, FILTER_BITS);
vst1q_u8(&output_ptr[j], vcombine_u8(out_lo, out_hi));
}
// Next row...
src_ptr += src_pixels_per_line;
output_ptr += output_width;
}
}
void test_vmov_nu8 (void)
{
uint8x8_t out_uint8x8_t;
uint8_t arg0_uint8_t;
out_uint8x8_t = vmov_n_u8 (arg0_uint8_t);
}
static void var_filter_block2d_bil_w8(const uint8_t *src_ptr,
uint8_t *output_ptr,
unsigned int src_pixels_per_line,
int pixel_step,
unsigned int output_height,
unsigned int output_width,
const uint8_t *filter) {
const uint8x8_t f0 = vmov_n_u8(filter[0]);
const uint8x8_t f1 = vmov_n_u8(filter[1]);
unsigned int i;
for (i = 0; i < output_height; ++i) {
const uint8x8_t src_0 = vld1_u8(&src_ptr[0]);
const uint8x8_t src_1 = vld1_u8(&src_ptr[pixel_step]);
const uint16x8_t a = vmull_u8(src_0, f0);
const uint16x8_t b = vmlal_u8(a, src_1, f1);
const uint8x8_t out = vrshrn_n_u16(b, FILTER_BITS);
vst1_u8(&output_ptr[0], out);
// Next row...
src_ptr += src_pixels_per_line;
output_ptr += output_width;
}
}
uint8x8_t test_vmov_n_u8(uint8_t v1) {
// CHECK: test_vmov_n_u8
return vmov_n_u8(v1);
// CHECK: dup {{v[0-9]+}}.8b, {{w[0-9]+}}
}
void UpsampleRgbaLinePairNEON(const uint8_t *top_y, const uint8_t *bottom_y, const uint8_t *top_u, const uint8_t *top_v, const uint8_t *cur_u, const uint8_t *cur_v, uint8_t *top_dst, uint8_t *bottom_dst, int len)
{
int block;
uint8_t uv_buf[2 * 32 + 15];
uint8_t *const r_uv = (uint8_t*)((uintptr_t)(uv_buf + 15) & ~15);
const int uv_len = (len + 1) >> 1;
const int num_blocks = (uv_len - 1) >> 3;
const int leftover = uv_len - num_blocks * 8;
const int last_pos = 1 + 16 * num_blocks;
const int u_diag = ((top_u[0] + cur_u[0]) >> 1) + 1;
const int v_diag = ((top_v[0] + cur_v[0]) >> 1) + 1;
const int16x4_t cf16 = vld1_s16(coef);
const int32x2_t cf32 = vmov_n_s32(76283);
const uint8x8_t u16 = vmov_n_u8(16);
const uint8x8_t u128 = vmov_n_u8(128);
for (block = 0; block < num_blocks; ++block) {
{
uint8x8_t a = vld1_u8(top_u);
uint8x8_t b = vld1_u8(top_u + 1);
uint8x8_t c = vld1_u8(cur_u);
uint8x8_t d = vld1_u8(cur_u + 1);
uint16x8_t al = vshll_n_u8(a, 1);
uint16x8_t bl = vshll_n_u8(b, 1);
uint16x8_t cl = vshll_n_u8(c, 1);
uint16x8_t dl = vshll_n_u8(d, 1);
uint8x8_t diag1, diag2;
uint16x8_t sl;
sl = vaddl_u8(a, b);
sl = vaddw_u8(sl, c);
sl = vaddw_u8(sl, d);
al = vaddq_u16(sl, al);
bl = vaddq_u16(sl, bl);
al = vaddq_u16(al, dl);
bl = vaddq_u16(bl, cl);
diag2 = vshrn_n_u16(al, 3);
diag1 = vshrn_n_u16(bl, 3);
a = vrhadd_u8(a, diag1);
b = vrhadd_u8(b, diag2);
c = vrhadd_u8(c, diag2);
d = vrhadd_u8(d, diag1);
{
const uint8x8x2_t a_b = {{ a, b }};
const uint8x8x2_t c_d = {{ c, d }};
vst2_u8(r_uv, a_b);
vst2_u8(r_uv + 32, c_d);
}
}
{
uint8x8_t a = vld1_u8(top_v);
uint8x8_t b = vld1_u8(top_v + 1);
uint8x8_t c = vld1_u8(cur_v);
uint8x8_t d = vld1_u8(cur_v + 1);
uint16x8_t al = vshll_n_u8(a, 1);
uint16x8_t bl = vshll_n_u8(b, 1);
uint16x8_t cl = vshll_n_u8(c, 1);
uint16x8_t dl = vshll_n_u8(d, 1);
uint8x8_t diag1, diag2;
uint16x8_t sl;
sl = vaddl_u8(a, b);
sl = vaddw_u8(sl, c);
sl = vaddw_u8(sl, d);
al = vaddq_u16(sl, al);
bl = vaddq_u16(sl, bl);
al = vaddq_u16(al, dl);
bl = vaddq_u16(bl, cl);
diag2 = vshrn_n_u16(al, 3);
diag1 = vshrn_n_u16(bl, 3);
a = vrhadd_u8(a, diag1);
b = vrhadd_u8(b, diag2);
c = vrhadd_u8(c, diag2);
d = vrhadd_u8(d, diag1);
{
const uint8x8x2_t a_b = {{ a, b }};
const uint8x8x2_t c_d = {{ c, d }};
vst2_u8(r_uv + 16, a_b);
vst2_u8(r_uv + 16 + 32, c_d);
}
}
{
if (top_y) {
{
int i;
for (i = 0; i < 16; i += 8) {
int off = ((16 * block + 1) + i) * 4;
uint8x8_t y = vld1_u8(top_y + (16 * block + 1) + i);
uint8x8_t u = vld1_u8((r_uv) + i);
uint8x8_t v = vld1_u8((r_uv) + i + 16);
int16x8_t yy = vreinterpretq_s16_u16(vsubl_u8(y, u16));
int16x8_t uu = vreinterpretq_s16_u16(vsubl_u8(u, u128));
int16x8_t vv = vreinterpretq_s16_u16(vsubl_u8(v, u128));
int16x8_t ud = vshlq_n_s16(uu, 1);
int16x8_t vd = vshlq_n_s16(vv, 1);
int32x4_t vrl = vqdmlal_lane_s16(vshll_n_s16(vget_low_s16(vv), 1), vget_low_s16(vd), cf16, 0);
int32x4_t vrh = vqdmlal_lane_s16(vshll_n_s16(vget_high_s16(vv), 1), vget_high_s16(vd), cf16, 0);
int16x8_t vr = vcombine_s16(vrshrn_n_s32(vrl, 16), vrshrn_n_s32(vrh, 16));
int32x4_t vl = vmovl_s16(vget_low_s16(vv));
int32x4_t vh = vmovl_s16(vget_high_s16(vv));
int32x4_t ugl = vmlal_lane_s16(vl, vget_low_s16(uu), cf16, 1);
int32x4_t ugh = vmlal_lane_s16(vh, vget_high_s16(uu), cf16, 1);
int32x4_t gcl = vqdmlal_lane_s16(ugl, vget_low_s16(vv), cf16, 2);
int32x4_t gch = vqdmlal_lane_s16(ugh, vget_high_s16(vv), cf16, 2);
int16x8_t gc = vcombine_s16(vrshrn_n_s32(gcl, 16), vrshrn_n_s32(gch, 16));
int32x4_t ubl = vqdmlal_lane_s16(vshll_n_s16(vget_low_s16(uu), 1), vget_low_s16(ud), cf16, 3);
int32x4_t ubh = vqdmlal_lane_s16(vshll_n_s16(vget_high_s16(uu), 1), vget_high_s16(ud), cf16, 3);
int16x8_t ub = vcombine_s16(vrshrn_n_s32(ubl, 16), vrshrn_n_s32(ubh, 16));
int32x4_t rl = vaddl_s16(vget_low_s16(yy), vget_low_s16(vr));
int32x4_t rh = vaddl_s16(vget_high_s16(yy), vget_high_s16(vr));
int32x4_t gl = vsubl_s16(vget_low_s16(yy), vget_low_s16(gc));
int32x4_t gh = vsubl_s16(vget_high_s16(yy), vget_high_s16(gc));
int32x4_t bl = vaddl_s16(vget_low_s16(yy), vget_low_s16(ub));
int32x4_t bh = vaddl_s16(vget_high_s16(yy), vget_high_s16(ub));
rl = vmulq_lane_s32(rl, cf32, 0);
rh = vmulq_lane_s32(rh, cf32, 0);
gl = vmulq_lane_s32(gl, cf32, 0);
gh = vmulq_lane_s32(gh, cf32, 0);
bl = vmulq_lane_s32(bl, cf32, 0);
bh = vmulq_lane_s32(bh, cf32, 0);
y = vqmovun_s16(vcombine_s16(vrshrn_n_s32(rl, 16), vrshrn_n_s32(rh, 16)));
u = vqmovun_s16(vcombine_s16(vrshrn_n_s32(gl, 16), vrshrn_n_s32(gh, 16)));
v = vqmovun_s16(vcombine_s16(vrshrn_n_s32(bl, 16), vrshrn_n_s32(bh, 16)));
do {
const uint8x8x4_t r_g_b_v255 = {{ y, u, v, vmov_n_u8(255) }};
vst4_u8(top_dst + off, r_g_b_v255);
} while (0);
}
}
}
if (bottom_y) {
{
int i;
for (i = 0; i < 16; i += 8) {
int off = ((16 * block + 1) + i) * 4;
uint8x8_t y = vld1_u8(bottom_y + (16 * block + 1) + i);
uint8x8_t u = vld1_u8(((r_uv) + 32) + i);
uint8x8_t v = vld1_u8(((r_uv) + 32) + i + 16);
int16x8_t yy = vreinterpretq_s16_u16(vsubl_u8(y, u16));
int16x8_t uu = vreinterpretq_s16_u16(vsubl_u8(u, u128));
int16x8_t vv = vreinterpretq_s16_u16(vsubl_u8(v, u128));
int16x8_t ud = vshlq_n_s16(uu, 1);
int16x8_t vd = vshlq_n_s16(vv, 1);
int32x4_t vrl = vqdmlal_lane_s16(vshll_n_s16(vget_low_s16(vv), 1), vget_low_s16(vd), cf16, 0);
int32x4_t vrh = vqdmlal_lane_s16(vshll_n_s16(vget_high_s16(vv), 1), vget_high_s16(vd), cf16, 0);
int16x8_t vr = vcombine_s16(vrshrn_n_s32(vrl, 16), vrshrn_n_s32(vrh, 16));
int32x4_t vl = vmovl_s16(vget_low_s16(vv));
int32x4_t vh = vmovl_s16(vget_high_s16(vv));
int32x4_t ugl = vmlal_lane_s16(vl, vget_low_s16(uu), cf16, 1);
int32x4_t ugh = vmlal_lane_s16(vh, vget_high_s16(uu), cf16, 1);
int32x4_t gcl = vqdmlal_lane_s16(ugl, vget_low_s16(vv), cf16, 2);
int32x4_t gch = vqdmlal_lane_s16(ugh, vget_high_s16(vv), cf16, 2);
int16x8_t gc = vcombine_s16(vrshrn_n_s32(gcl, 16), vrshrn_n_s32(gch, 16));
int32x4_t ubl = vqdmlal_lane_s16(vshll_n_s16(vget_low_s16(uu), 1), vget_low_s16(ud), cf16, 3);
int32x4_t ubh = vqdmlal_lane_s16(vshll_n_s16(vget_high_s16(uu), 1), vget_high_s16(ud), cf16, 3);
int16x8_t ub = vcombine_s16(vrshrn_n_s32(ubl, 16), vrshrn_n_s32(ubh, 16));
int32x4_t rl = vaddl_s16(vget_low_s16(yy), vget_low_s16(vr));
int32x4_t rh = vaddl_s16(vget_high_s16(yy), vget_high_s16(vr));
int32x4_t gl = vsubl_s16(vget_low_s16(yy), vget_low_s16(gc));
int32x4_t gh = vsubl_s16(vget_high_s16(yy), vget_high_s16(gc));
int32x4_t bl = vaddl_s16(vget_low_s16(yy), vget_low_s16(ub));
int32x4_t bh = vaddl_s16(vget_high_s16(yy), vget_high_s16(ub));
rl = vmulq_lane_s32(rl, cf32, 0);
rh = vmulq_lane_s32(rh, cf32, 0);
gl = vmulq_lane_s32(gl, cf32, 0);
gh = vmulq_lane_s32(gh, cf32, 0);
bl = vmulq_lane_s32(bl, cf32, 0);
bh = vmulq_lane_s32(bh, cf32, 0);
y = vqmovun_s16(vcombine_s16(vrshrn_n_s32(rl, 16), vrshrn_n_s32(rh, 16)));
u = vqmovun_s16(vcombine_s16(vrshrn_n_s32(gl, 16), vrshrn_n_s32(gh, 16)));
v = vqmovun_s16(vcombine_s16(vrshrn_n_s32(bl, 16), vrshrn_n_s32(bh, 16)));
do {
const uint8x8x4_t r_g_b_v255 = {{ y, u, v, vmov_n_u8(255) }};
vst4_u8(bottom_dst + off, r_g_b_v255);
} while (0);
}
}
}
}
}
}
