Port ssse3 optimization for 2:1 eighttap scaling
ported from vp9
Change-Id: Ib9bc2ff0157db7e8a70c69cf87664c4571f9302e
diff --git a/aom_dsp/x86/mem_sse2.h b/aom_dsp/x86/mem_sse2.h
index 28fc5fe..440df78 100644
--- a/aom_dsp/x86/mem_sse2.h
+++ b/aom_dsp/x86/mem_sse2.h
@@ -37,6 +37,10 @@
return v;
}
+static INLINE void _mm_storeh_epi64(__m128i *const d, const __m128i s) {
+ _mm_storeh_pi((__m64 *)d, _mm_castsi128_ps(s));
+}
+
static INLINE __m128i loadh_epi64(const void *const src, const __m128i s) {
return _mm_castps_si128(
_mm_loadh_pi(_mm_castsi128_ps(s), (const __m64 *)src));
@@ -58,4 +62,35 @@
return dst;
}
+static INLINE void store_8bit_8x4_from_16x2(const __m128i *const s,
+ uint8_t *const d,
+ const ptrdiff_t stride) {
+ _mm_storel_epi64((__m128i *)(d + 0 * stride), s[0]);
+ _mm_storeh_epi64((__m128i *)(d + 1 * stride), s[0]);
+ _mm_storel_epi64((__m128i *)(d + 2 * stride), s[1]);
+ _mm_storeh_epi64((__m128i *)(d + 3 * stride), s[1]);
+}
+
+static INLINE void load_8bit_8x4(const uint8_t *const s, const ptrdiff_t stride,
+ __m128i *const d) {
+ d[0] = _mm_loadl_epi64((const __m128i *)(s + 0 * stride));
+ d[1] = _mm_loadl_epi64((const __m128i *)(s + 1 * stride));
+ d[2] = _mm_loadl_epi64((const __m128i *)(s + 2 * stride));
+ d[3] = _mm_loadl_epi64((const __m128i *)(s + 3 * stride));
+}
+
+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));
+}
+
+static INLINE void load_8bit_8x8(const uint8_t *const s, const ptrdiff_t stride,
+ __m128i *const d) {
+ load_8bit_8x4(s + 0 * stride, stride, &d[0]);
+ load_8bit_8x4(s + 4 * stride, stride, &d[4]);
+}
+
#endif // AOM_AOM_DSP_X86_MEM_SSE2_H_
diff --git a/av1/common/x86/resize_ssse3.c b/av1/common/x86/resize_ssse3.c
index 02f3bd8..470d7fc 100644
--- a/av1/common/x86/resize_ssse3.c
+++ b/av1/common/x86/resize_ssse3.c
@@ -12,6 +12,8 @@
#include <tmmintrin.h> // SSSE3
+#include "aom_dsp/x86/mem_sse2.h"
+#include "aom_dsp/x86/transpose_sse2.h"
#include "av1/common/resize.h"
#include "config/av1_rtcd.h"
#include "config/aom_scale_rtcd.h"
@@ -25,6 +27,29 @@
return _mm_packus_epi16(a_and, b_and);
}
+static INLINE __m128i convolve8_8_ssse3(const __m128i *const s,
+ const __m128i *const f) {
+ // multiply 2 adjacent elements with the filter and add the result
+ const __m128i k_64 = _mm_set1_epi16(1 << 6);
+ const __m128i x0 = _mm_maddubs_epi16(s[0], f[0]);
+ const __m128i x1 = _mm_maddubs_epi16(s[1], f[1]);
+ const __m128i x2 = _mm_maddubs_epi16(s[2], f[2]);
+ const __m128i x3 = _mm_maddubs_epi16(s[3], f[3]);
+ __m128i sum1, sum2;
+
+ // sum the results together, saturating only on the final step
+ // adding x0 with x2 and x1 with x3 is the only order that prevents
+ // outranges for all filters
+ sum1 = _mm_add_epi16(x0, x2);
+ sum2 = _mm_add_epi16(x1, x3);
+ // add the rounding offset early to avoid another saturated add
+ sum1 = _mm_add_epi16(sum1, k_64);
+ sum1 = _mm_adds_epi16(sum1, sum2);
+ // shift by 7 bit each 16 bit
+ sum1 = _mm_srai_epi16(sum1, 7);
+ return sum1;
+}
+
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,
@@ -100,6 +125,132 @@
} while (--y);
}
+static INLINE void shuffle_filter_ssse3(const int16_t *const filter,
+ __m128i *const f) {
+ const __m128i f_values = _mm_load_si128((const __m128i *)filter);
+ // pack and duplicate the filter values
+ f[0] = _mm_shuffle_epi8(f_values, _mm_set1_epi16(0x0200u));
+ f[1] = _mm_shuffle_epi8(f_values, _mm_set1_epi16(0x0604u));
+ f[2] = _mm_shuffle_epi8(f_values, _mm_set1_epi16(0x0a08u));
+ f[3] = _mm_shuffle_epi8(f_values, _mm_set1_epi16(0x0e0cu));
+}
+
+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]);
+ // 00 10 01 11 02 12 03 13 20 30 21 31 22 32 23 33
+ // 40 50 41 51 42 52 43 53 60 70 61 71 62 72 63 73
+ d[0] = _mm_unpacklo_epi32(d[2], d[3]);
+ d[1] = _mm_unpackhi_epi32(d[2], d[3]);
+ store_8bit_8x4_from_16x2(d, t, 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
+ s[0] = _mm_loadu_si128((const __m128i *)(t + 0 * width_hor));
+ s[1] = _mm_loadu_si128((const __m128i *)(t + 2 * width_hor));
+ s[2] = _mm_loadu_si128((const __m128i *)(t + 4 * width_hor));
+ 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); // 00 01 02 03 04 05 06 07
+ d[1] = convolve8_8_ssse3(&s[1], f); // 10 11 12 13 14 15 16 17
+ d[2] = convolve8_8_ssse3(&s[2], f); // 20 21 22 23 24 25 26 27
+ d[3] = convolve8_8_ssse3(&s[3], f); // 30 31 32 33 34 35 36 37
+
+ // 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]);
+ store_8bit_8x4_from_16x2(d, dst, dst_stride);
+
+ 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);
+}
+
void av1_resize_and_extend_frame_ssse3(const YV12_BUFFER_CONFIG *src,
YV12_BUFFER_CONFIG *dst,
const InterpFilter filter,
@@ -126,8 +277,20 @@
dst->buffers[i], dst->strides[is_uv], dst_w,
dst_h, c0c1);
} else {
- av1_resize_plane(src->buffers[i], src_h, src_w, src->strides[is_uv],
- dst->buffers[i], dst_h, dst_w, dst->strides[is_uv]);
+ 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) {
+ const InterpKernel *interp_kernel =
+ (const InterpKernel *)av1_interp_filter_params_list[filter]
+ .filter_ptr;
+ scale_plane_2_to_1_general(src->buffers[i], src->strides[is_uv],
+ dst->buffers[i], dst->strides[is_uv],
+ dst_w, dst_h, interp_kernel[phase],
+ temp_buffer);
+ free(temp_buffer);
+ }
}
} else {
av1_resize_plane(src->buffers[i], src_h, src_w, src->strides[is_uv],
