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/*
* Copyright (c) 2021, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 3-Clause Clear License
* and the Alliance for Open Media Patent License 1.0. If the BSD 3-Clause Clear
* License was not distributed with this source code in the LICENSE file, you
* can obtain it at aomedia.org/license/software-license/bsd-3-c-c/. If the
* Alliance for Open Media Patent License 1.0 was not distributed with this
* source code in the PATENTS file, you can obtain it at
* aomedia.org/license/patent-license/.
*/
#include <smmintrin.h> // SSE4.1
#include <assert.h>
#include "aom/aom_integer.h"
#include "aom_ports/mem.h"
#include "aom_dsp/aom_dsp_common.h"
#include "aom_dsp/blend.h"
#include "aom_dsp/x86/synonyms.h"
#include "aom_dsp/x86/blend_sse4.h"
#include "config/aom_dsp_rtcd.h"
//////////////////////////////////////////////////////////////////////////////
// Implementation - No sub-sampling
//////////////////////////////////////////////////////////////////////////////
static INLINE void blend_a64_vmask_bn_w4_sse4_1(
uint16_t *dst, uint32_t dst_stride, const uint16_t *src0,
uint32_t src0_stride, const uint16_t *src1, uint32_t src1_stride,
const uint8_t *mask, int h, blend_unit_fn blend) {
const __m128i v_maxval_w = _mm_set1_epi16(AOM_BLEND_A64_MAX_ALPHA);
do {
const __m128i v_m0_w = _mm_set1_epi16(*mask);
const __m128i v_m1_w = _mm_sub_epi16(v_maxval_w, v_m0_w);
const __m128i v_res_w = blend(src0, src1, v_m0_w, v_m1_w);
xx_storel_64(dst, v_res_w);
dst += dst_stride;
src0 += src0_stride;
src1 += src1_stride;
mask += 1;
} while (--h);
}
static void blend_a64_vmask_b10_w4_sse4_1(uint16_t *dst, uint32_t dst_stride,
const uint16_t *src0,
uint32_t src0_stride,
const uint16_t *src1,
uint32_t src1_stride,
const uint8_t *mask, int w, int h) {
(void)w;
blend_a64_vmask_bn_w4_sse4_1(dst, dst_stride, src0, src0_stride, src1,
src1_stride, mask, h, blend_4_b10);
}
static void blend_a64_vmask_b12_w4_sse4_1(uint16_t *dst, uint32_t dst_stride,
const uint16_t *src0,
uint32_t src0_stride,
const uint16_t *src1,
uint32_t src1_stride,
const uint8_t *mask, int w, int h) {
(void)w;
blend_a64_vmask_bn_w4_sse4_1(dst, dst_stride, src0, src0_stride, src1,
src1_stride, mask, h, blend_4_b12);
}
static INLINE void blend_a64_vmask_bn_w8n_sse4_1(
uint16_t *dst, uint32_t dst_stride, const uint16_t *src0,
uint32_t src0_stride, const uint16_t *src1, uint32_t src1_stride,
const uint8_t *mask, int w, int h, blend_unit_fn blend) {
const __m128i v_maxval_w = _mm_set1_epi16(AOM_BLEND_A64_MAX_ALPHA);
do {
int c;
const __m128i v_m0_w = _mm_set1_epi16(*mask);
const __m128i v_m1_w = _mm_sub_epi16(v_maxval_w, v_m0_w);
for (c = 0; c < w; c += 8) {
const __m128i v_res_w = blend(src0 + c, src1 + c, v_m0_w, v_m1_w);
xx_storeu_128(dst + c, v_res_w);
}
dst += dst_stride;
src0 += src0_stride;
src1 += src1_stride;
mask += 1;
} while (--h);
}
static void blend_a64_vmask_b10_w8n_sse4_1(uint16_t *dst, uint32_t dst_stride,
const uint16_t *src0,
uint32_t src0_stride,
const uint16_t *src1,
uint32_t src1_stride,
const uint8_t *mask, int w, int h) {
blend_a64_vmask_bn_w8n_sse4_1(dst, dst_stride, src0, src0_stride, src1,
src1_stride, mask, w, h, blend_8_b10);
}
static void blend_a64_vmask_b12_w8n_sse4_1(uint16_t *dst, uint32_t dst_stride,
const uint16_t *src0,
uint32_t src0_stride,
const uint16_t *src1,
uint32_t src1_stride,
const uint8_t *mask, int w, int h) {
blend_a64_vmask_bn_w8n_sse4_1(dst, dst_stride, src0, src0_stride, src1,
src1_stride, mask, w, h, blend_8_b12);
}
//////////////////////////////////////////////////////////////////////////////
// Dispatch
//////////////////////////////////////////////////////////////////////////////
void aom_highbd_blend_a64_vmask_sse4_1(
uint16_t *dst, uint32_t dst_stride, const uint16_t *src0,
uint32_t src0_stride, const uint16_t *src1, uint32_t src1_stride,
const uint8_t *mask, int w, int h, int bd) {
typedef void (*blend_fn)(uint16_t * dst, uint32_t dst_stride,
const uint16_t *src0, uint32_t src0_stride,
const uint16_t *src1, uint32_t src1_stride,
const uint8_t *mask, int w, int h);
// Dimensions are: bd_index X width_index
static const blend_fn blend[2][2] = {
{
// bd == 8 or 10
blend_a64_vmask_b10_w8n_sse4_1, // w % 8 == 0
blend_a64_vmask_b10_w4_sse4_1, // w == 4
},
{
// bd == 12
blend_a64_vmask_b12_w8n_sse4_1, // w % 8 == 0
blend_a64_vmask_b12_w4_sse4_1, // w == 4
}
};
assert(IMPLIES(src0 == dst, src0_stride == dst_stride));
assert(IMPLIES(src1 == dst, src1_stride == dst_stride));
assert(h >= 1);
assert(w >= 1);
assert(IS_POWER_OF_TWO(h));
assert(IS_POWER_OF_TWO(w));
assert(bd == 8 || bd == 10 || bd == 12);
if (UNLIKELY((h | w) & 3)) { // if (w <= 2 || h <= 2)
aom_highbd_blend_a64_vmask_c(dst, dst_stride, src0, src0_stride, src1,
src1_stride, mask, w, h, bd);
} else {
blend[bd == 12][(w >> 2) & 1](dst, dst_stride, src0, src0_stride, src1,
src1_stride, mask, w, h);
}
}