Commit 127864de authored by Linfeng Zhang's avatar Linfeng Zhang
Browse files

Generalize 2:1 vp9_scale_and_extend_frame_ssse3()

Change-Id: I882da3a04884d5fabd4cd591c28682cbb2d76aa5
parent b8094425
......@@ -15,14 +15,15 @@
#include "./vpx_scale_rtcd.h"
#include "vpx_dsp/x86/convolve_ssse3.h"
#include "vpx_dsp/x86/mem_sse2.h"
#include "vpx_dsp/x86/transpose_sse2.h"
#include "vpx_scale/yv12config.h"
static void scale_plane_2_to_1_phase_0(const uint8_t *src,
const ptrdiff_t src_stride, uint8_t *dst,
const ptrdiff_t dst_stride,
const int dst_w, const int dst_h) {
const __m128i mask = _mm_set1_epi16(0x00FF);
const int max_width = (dst_w + 15) & ~15;
const __m128i mask = _mm_set1_epi16(0x00FF);
int y = dst_h;
do {
......@@ -43,6 +44,174 @@ static void scale_plane_2_to_1_phase_0(const uint8_t *src,
} while (--y);
}
static INLINE __m128i scale_plane_bilinear_kernel(const __m128i *const s,
const __m128i c0c1) {
const __m128i k_64 = _mm_set1_epi16(1 << 6);
const __m128i t0 = _mm_maddubs_epi16(s[0], c0c1);
const __m128i t1 = _mm_maddubs_epi16(s[1], c0c1);
// round and shift by 7 bit each 16 bit
const __m128i t2 = _mm_adds_epi16(t0, k_64);
const __m128i t3 = _mm_adds_epi16(t1, k_64);
const __m128i t4 = _mm_srai_epi16(t2, 7);
const __m128i t5 = _mm_srai_epi16(t3, 7);
return _mm_packus_epi16(t4, t5);
}
static void scale_plane_2_to_1_bilinear(const uint8_t *src,
const ptrdiff_t src_stride,
uint8_t *dst,
const ptrdiff_t dst_stride,
const int dst_w, const int dst_h,
const __m128i c0c1) {
const int max_width = (dst_w + 15) & ~15;
int y = dst_h;
do {
int x = max_width;
do {
__m128i s[2], d[2];
// Horizontal
// Even rows
s[0] = _mm_loadu_si128((const __m128i *)(src + 0));
s[1] = _mm_loadu_si128((const __m128i *)(src + 16));
d[0] = scale_plane_bilinear_kernel(s, c0c1);
// odd rows
s[0] = _mm_loadu_si128((const __m128i *)(src + src_stride + 0));
s[1] = _mm_loadu_si128((const __m128i *)(src + src_stride + 16));
d[1] = scale_plane_bilinear_kernel(s, c0c1);
// Vertical
s[0] = _mm_unpacklo_epi8(d[0], d[1]);
s[1] = _mm_unpackhi_epi8(d[0], d[1]);
d[0] = scale_plane_bilinear_kernel(s, c0c1);
_mm_storeu_si128((__m128i *)dst, d[0]);
src += 32;
dst += 16;
x -= 16;
} while (x);
src += 2 * (src_stride - max_width);
dst += dst_stride - max_width;
} while (--y);
}
static void scale_plane_2_to_1_general(const uint8_t *src, const int src_stride,
uint8_t *dst, const int dst_stride,
const int w, const int h,
const int16_t *const coef,
uint8_t *const temp_buffer) {
const int width_hor = (w + 3) & ~3;
const int width_ver = (w + 7) & ~7;
const int height_hor = (2 * h + SUBPEL_TAPS - 2 + 7) & ~7;
const int height_ver = (h + 3) & ~3;
int x, y = height_hor;
uint8_t *t = temp_buffer;
__m128i s[11], d[4];
__m128i f[4];
assert(w && h);
shuffle_filter_ssse3(coef, f);
src -= (SUBPEL_TAPS / 2 - 1) * src_stride + SUBPEL_TAPS / 2 + 1;
// horizontal 4x8
do {
load_8bit_8x8(src + 2, src_stride, s);
// 00 01 10 11 20 21 30 31 40 41 50 51 60 61 70 71
// 02 03 12 13 22 23 32 33 42 43 52 53 62 63 72 73
// 04 05 14 15 24 25 34 35 44 45 54 55 64 65 74 75
// 06 07 16 17 26 27 36 37 46 47 56 57 66 67 76 77 (overlapped)
transpose_16bit_4x8(s, s);
x = width_hor;
do {
src += 8;
load_8bit_8x8(src, src_stride, &s[3]);
// 06 07 16 17 26 27 36 37 46 47 56 57 66 67 76 77
// 08 09 18 19 28 29 38 39 48 49 58 59 68 69 78 79
// 0A 0B 1A 1B 2A 2B 3A 3B 4A 4B 5A 5B 6A 6B 7A 7B
// 0C 0D 1C 1D 2C 2D 3C 3D 4C 4D 5C 5D 6C 6D 7C 7D
transpose_16bit_4x8(&s[3], &s[3]);
d[0] = convolve8_8_ssse3(&s[0], f); // 00 10 20 30 40 50 60 70
d[1] = convolve8_8_ssse3(&s[1], f); // 01 11 21 31 41 51 61 71
d[2] = convolve8_8_ssse3(&s[2], f); // 02 12 22 32 42 52 62 72
d[3] = convolve8_8_ssse3(&s[3], f); // 03 13 23 33 43 53 63 73
// 00 10 20 30 40 50 60 70 02 12 22 32 42 52 62 72
// 01 11 21 31 41 51 61 71 03 13 23 33 43 53 63 73
d[0] = _mm_packus_epi16(d[0], d[2]);
d[1] = _mm_packus_epi16(d[1], d[3]);
// 00 10 01 11 20 30 21 31 40 50 41 51 60 70 61 71
// 02 12 03 13 22 32 23 33 42 52 43 53 62 72 63 73
d[2] = _mm_unpacklo_epi16(d[0], d[1]);
d[3] = _mm_unpackhi_epi16(d[0], d[1]);
store_8bit_4x4_sse2(d[2], t + 0, 2 * width_hor);
store_8bit_4x4_sse2(d[3], t + 4, 2 * width_hor);
s[0] = s[4];
s[1] = s[5];
s[2] = s[6];
t += 8;
x -= 4;
} while (x);
src += 8 * src_stride - 2 * width_hor;
t += 6 * width_hor;
y -= 8;
} while (y);
// vertical 8x4
x = width_ver;
t = temp_buffer;
do {
// 00 10 01 11 02 12 03 13 04 14 05 15 06 16 07 17
// 20 30 21 31 22 32 23 33 24 34 25 35 26 36 27 37
// 40 50 41 51 42 52 43 53 44 54 45 55 46 56 47 57
// 60 70 61 71 62 72 63 73 64 74 65 75 66 76 67 77 (overlapped)
loadu_8bit_16x4(t, 2 * width_hor, s);
t += 6 * width_hor;
y = height_ver;
do {
// 60 70 61 71 62 72 63 73 64 74 65 75 66 76 67 77
// 80 90 81 91 82 92 83 93 84 94 85 95 86 96 87 77
// A0 B0 A1 B1 A2 B2 A3 B3 A4 B4 A5 B5 A6 B6 A7 77
// C0 D0 C1 D1 C2 D2 C3 D3 C4 D4 C5 D5 C6 D6 C7 77
loadu_8bit_16x4(t, 2 * width_hor, &s[3]);
t += 8 * width_hor;
d[0] = convolve8_8_ssse3(&s[0], f);
d[1] = convolve8_8_ssse3(&s[1], f);
d[2] = convolve8_8_ssse3(&s[2], f);
d[3] = convolve8_8_ssse3(&s[3], f);
// 00 01 02 03 04 05 06 07 10 11 12 13 14 15 16 17
// 20 21 22 23 24 25 26 27 30 31 32 33 34 35 36 37
d[0] = _mm_packus_epi16(d[0], d[1]);
d[1] = _mm_packus_epi16(d[2], d[3]);
_mm_storel_epi64((__m128i *)(dst + 0 * dst_stride), d[0]);
_mm_storeh_epi64((__m128i *)(dst + 1 * dst_stride), d[0]);
_mm_storel_epi64((__m128i *)(dst + 2 * dst_stride), d[1]);
_mm_storeh_epi64((__m128i *)(dst + 3 * dst_stride), d[1]);
s[0] = s[4];
s[1] = s[5];
s[2] = s[6];
dst += 4 * dst_stride;
y -= 4;
} while (y);
t -= width_hor * (2 * height_ver + 6);
t += 16;
dst -= height_ver * dst_stride;
dst += 8;
x -= 8;
} while (x);
}
static INLINE __m128i scale_1_to_2_phase_0_kernel(const __m128i *const s,
const __m128i *const f) {
__m128i ss[4], temp;
......@@ -165,17 +334,54 @@ void vp9_scale_and_extend_frame_ssse3(const YV12_BUFFER_CONFIG *src,
const int dst_h = dst->y_crop_height;
int scaled = 0;
if (dst_w * 2 == src_w && dst_h * 2 == src_h && phase_scaler == 0) {
// phase_scaler is usually 0 or 8.
assert(phase_scaler >= 0 && phase_scaler < 16);
if (dst_w * 2 == src_w && dst_h * 2 == src_h) {
// 2 to 1
const int dst_uv_w = dst_w / 2;
const int dst_uv_h = dst_h / 2;
scaled = 1;
scale_plane_2_to_1_phase_0(src->y_buffer, src->y_stride, dst->y_buffer,
dst->y_stride, dst_w, dst_h);
scale_plane_2_to_1_phase_0(src->u_buffer, src->uv_stride, dst->u_buffer,
dst->uv_stride, dst_uv_w, dst_uv_h);
scale_plane_2_to_1_phase_0(src->v_buffer, src->uv_stride, dst->v_buffer,
dst->uv_stride, dst_uv_w, dst_uv_h);
if (phase_scaler == 0) {
scale_plane_2_to_1_phase_0(src->y_buffer, src->y_stride, dst->y_buffer,
dst->y_stride, dst_w, dst_h);
scale_plane_2_to_1_phase_0(src->u_buffer, src->uv_stride, dst->u_buffer,
dst->uv_stride, dst_uv_w, dst_uv_h);
scale_plane_2_to_1_phase_0(src->v_buffer, src->uv_stride, dst->v_buffer,
dst->uv_stride, dst_uv_w, dst_uv_h);
} else if (filter_type == BILINEAR) {
const int16_t c0 = vp9_filter_kernels[BILINEAR][phase_scaler][3];
const int16_t c1 = vp9_filter_kernels[BILINEAR][phase_scaler][4];
const __m128i c0c1 = _mm_set1_epi16(c0 | (c1 << 8)); // c0 and c1 >= 0
scale_plane_2_to_1_bilinear(src->y_buffer, src->y_stride, dst->y_buffer,
dst->y_stride, dst_w, dst_h, c0c1);
scale_plane_2_to_1_bilinear(src->u_buffer, src->uv_stride, dst->u_buffer,
dst->uv_stride, dst_uv_w, dst_uv_h, c0c1);
scale_plane_2_to_1_bilinear(src->v_buffer, src->uv_stride, dst->v_buffer,
dst->uv_stride, dst_uv_w, dst_uv_h, c0c1);
} else {
const int buffer_stride = (dst_w + 3) & ~3;
const int buffer_height = (2 * dst_h + SUBPEL_TAPS - 2 + 7) & ~7;
uint8_t *const temp_buffer =
(uint8_t *)malloc(buffer_stride * buffer_height);
if (temp_buffer) {
scale_plane_2_to_1_general(
src->y_buffer, src->y_stride, dst->y_buffer, dst->y_stride, dst_w,
dst_h, vp9_filter_kernels[filter_type][phase_scaler], temp_buffer);
scale_plane_2_to_1_general(
src->u_buffer, src->uv_stride, dst->u_buffer, dst->uv_stride,
dst_uv_w, dst_uv_h, vp9_filter_kernels[filter_type][phase_scaler],
temp_buffer);
scale_plane_2_to_1_general(
src->v_buffer, src->uv_stride, dst->v_buffer, dst->uv_stride,
dst_uv_w, dst_uv_h, vp9_filter_kernels[filter_type][phase_scaler],
temp_buffer);
free(temp_buffer);
} else {
scaled = 0;
}
}
} else if (dst_w == src_w * 2 && dst_h == src_h * 2 && phase_scaler == 0) {
// 1 to 2
uint8_t *const temp_buffer = (uint8_t *)malloc(8 * ((src_w + 7) & ~7));
......
......@@ -55,16 +55,22 @@ static INLINE void load_8bit_16x8(const uint8_t *const s,
d[7] = _mm_load_si128((const __m128i *)(s + 7 * stride));
}
static INLINE void loadu_8bit_16x8(const uint8_t *const s,
static INLINE void loadu_8bit_16x4(const uint8_t *const s,
const ptrdiff_t stride, __m128i *const d) {
d[0] = _mm_loadu_si128((const __m128i *)(s + 0 * stride));
d[1] = _mm_loadu_si128((const __m128i *)(s + 1 * stride));
d[2] = _mm_loadu_si128((const __m128i *)(s + 2 * stride));
d[3] = _mm_loadu_si128((const __m128i *)(s + 3 * stride));
d[4] = _mm_loadu_si128((const __m128i *)(s + 4 * stride));
d[5] = _mm_loadu_si128((const __m128i *)(s + 5 * stride));
d[6] = _mm_loadu_si128((const __m128i *)(s + 6 * stride));
d[7] = _mm_loadu_si128((const __m128i *)(s + 7 * stride));
}
static INLINE void loadu_8bit_16x8(const uint8_t *const s,
const ptrdiff_t stride, __m128i *const d) {
loadu_8bit_16x4(s + 0 * stride, stride, &d[0]);
loadu_8bit_16x4(s + 4 * stride, stride, &d[4]);
}
static INLINE void _mm_storeh_epi64(__m128i *const d, const __m128i s) {
_mm_storeh_pi((__m64 *)d, _mm_castsi128_ps(s));
}
static INLINE void store_8bit_4x4(const __m128i *const s, uint8_t *const d,
......@@ -75,6 +81,17 @@ static INLINE void store_8bit_4x4(const __m128i *const s, uint8_t *const d,
*(int *)(d + 3 * stride) = _mm_cvtsi128_si32(s[3]);
}
static INLINE void store_8bit_4x4_sse2(const __m128i s, uint8_t *const d,
const ptrdiff_t stride) {
__m128i ss[4];
ss[0] = s;
ss[1] = _mm_srli_si128(s, 4);
ss[2] = _mm_srli_si128(s, 8);
ss[3] = _mm_srli_si128(s, 12);
store_8bit_4x4(ss, d, stride);
}
static INLINE void store_8bit_8x8(const __m128i *const s, uint8_t *const d,
const ptrdiff_t stride) {
_mm_storel_epi64((__m128i *)(d + 0 * stride), s[0]);
......
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