ref: 12f742bc3fe8a9ae2d1ed5d51134960de442d2b1
parent: 38a478fc2c441d7f249d541a7e5248142f499de2
parent: 1bb11781e2be1a047e5f38a5cd3d6f5c8d0a107b
author: Jingning Han <jingning@google.com>
date: Fri Jan 3 07:54:43 EST 2014
Merge "Rework idct8x8_10 SSE2 implementation"
--- a/vp9/common/x86/vp9_idct_intrin_sse2.c
+++ b/vp9/common/x86/vp9_idct_intrin_sse2.c
@@ -361,24 +361,23 @@
out7 = _mm_unpackhi_epi64(tr1_3, tr1_7); \
}
-#define TRANSPOSE_4X8(in0, in1, in2, in3, in4, in5, in6, in7, \
- out0, out1, out2, out3, out4, out5, out6, out7) \
- { \- const __m128i tr0_0 = _mm_unpacklo_epi16(in0, in1); \
- const __m128i tr0_1 = _mm_unpacklo_epi16(in2, in3); \
- const __m128i tr0_4 = _mm_unpacklo_epi16(in4, in5); \
- const __m128i tr0_5 = _mm_unpacklo_epi16(in6, in7); \
- \
+#define TRANSPOSE_4X8_10(tmp0, tmp1, tmp2, tmp3, \
+ out0, out1, out2, out3) \
+ { \+ const __m128i tr0_0 = _mm_unpackhi_epi16(tmp0, tmp1); \
+ const __m128i tr0_1 = _mm_unpacklo_epi16(tmp1, tmp0); \
+ const __m128i tr0_4 = _mm_unpacklo_epi16(tmp2, tmp3); \
+ const __m128i tr0_5 = _mm_unpackhi_epi16(tmp3, tmp2); \
+ \
const __m128i tr1_0 = _mm_unpacklo_epi32(tr0_0, tr0_1); \
const __m128i tr1_2 = _mm_unpackhi_epi32(tr0_0, tr0_1); \
const __m128i tr1_4 = _mm_unpacklo_epi32(tr0_4, tr0_5); \
const __m128i tr1_6 = _mm_unpackhi_epi32(tr0_4, tr0_5); \
- \
+ \
out0 = _mm_unpacklo_epi64(tr1_0, tr1_4); \
out1 = _mm_unpackhi_epi64(tr1_0, tr1_4); \
out2 = _mm_unpacklo_epi64(tr1_2, tr1_6); \
out3 = _mm_unpackhi_epi64(tr1_2, tr1_6); \
- out4 = out5 = out6 = out7 = zero; \
}
#define TRANSPOSE_8X4(in0, in1, in2, in3, out0, out1, out2, out3) \
@@ -394,6 +393,14 @@
in3 = _mm_unpackhi_epi32(tr0_2, tr0_3); /* i7 i6 */ \
}
+#define TRANSPOSE_8X8_10(in0, in1, in2, in3, out0, out1) \
+ { \+ const __m128i tr0_0 = _mm_unpacklo_epi16(in0, in1); \
+ const __m128i tr0_1 = _mm_unpacklo_epi16(in2, in3); \
+ out0 = _mm_unpacklo_epi32(tr0_0, tr0_1); \
+ out1 = _mm_unpackhi_epi32(tr0_0, tr0_1); \
+ }
+
// Define Macro for multiplying elements by constants and adding them together.
#define MULTIPLICATION_AND_ADD(lo_0, hi_0, lo_1, hi_1, \
cst0, cst1, cst2, cst3, res0, res1, res2, res3) \
@@ -563,8 +570,8 @@
// 2-D
for (i = 0; i < 2; i++) {// 8x8 Transpose is copied from vp9_fdct8x8_sse2()
- TRANSPOSE_8X8(in0, in1, in2, in3, in4, in5, in6, in7, in0, in1, in2, in3,
- in4, in5, in6, in7);
+ TRANSPOSE_8X8(in0, in1, in2, in3, in4, in5, in6, in7,
+ in0, in1, in2, in3, in4, in5, in6, in7);
// 4-stage 1D idct8x8
IDCT8_1D
@@ -1032,12 +1039,11 @@
in3 = _mm_load_si128((const __m128i *)(input + 8 * 3));
// 8x4 Transpose
- TRANSPOSE_8X4(in0, in1, in2, in3, in0, in1, in2, in3)
-
+ TRANSPOSE_8X8_10(in0, in1, in2, in3, in0, in1);
// Stage1
{ //NOLINT- const __m128i lo_17 = _mm_unpackhi_epi16(in0, in3);
- const __m128i lo_35 = _mm_unpackhi_epi16(in1, in2);
+ const __m128i lo_17 = _mm_unpackhi_epi16(in0, zero);
+ const __m128i lo_35 = _mm_unpackhi_epi16(in1, zero);
tmp0 = _mm_madd_epi16(lo_17, stg1_0);
tmp2 = _mm_madd_epi16(lo_17, stg1_1);
@@ -1053,16 +1059,14 @@
tmp4 = _mm_srai_epi32(tmp4, DCT_CONST_BITS);
tmp6 = _mm_srai_epi32(tmp6, DCT_CONST_BITS);
- stp1_4 = _mm_packs_epi32(tmp0, zero);
- stp1_7 = _mm_packs_epi32(tmp2, zero);
- stp1_5 = _mm_packs_epi32(tmp4, zero);
- stp1_6 = _mm_packs_epi32(tmp6, zero);
+ stp1_4 = _mm_packs_epi32(tmp0, tmp2);
+ stp1_5 = _mm_packs_epi32(tmp4, tmp6);
}
// Stage2
{ //NOLINT- const __m128i lo_04 = _mm_unpacklo_epi16(in0, in2);
- const __m128i lo_26 = _mm_unpacklo_epi16(in1, in3);
+ const __m128i lo_04 = _mm_unpacklo_epi16(in0, zero);
+ const __m128i lo_26 = _mm_unpacklo_epi16(in1, zero);
tmp0 = _mm_madd_epi16(lo_04, stg2_0);
tmp2 = _mm_madd_epi16(lo_04, stg2_1);
@@ -1078,25 +1082,27 @@
tmp4 = _mm_srai_epi32(tmp4, DCT_CONST_BITS);
tmp6 = _mm_srai_epi32(tmp6, DCT_CONST_BITS);
- stp2_0 = _mm_packs_epi32(tmp0, zero);
- stp2_1 = _mm_packs_epi32(tmp2, zero);
- stp2_2 = _mm_packs_epi32(tmp4, zero);
- stp2_3 = _mm_packs_epi32(tmp6, zero);
+ stp2_0 = _mm_packs_epi32(tmp0, tmp2);
+ stp2_2 = _mm_packs_epi32(tmp6, tmp4);
- stp2_4 = _mm_adds_epi16(stp1_4, stp1_5);
- stp2_5 = _mm_subs_epi16(stp1_4, stp1_5);
- stp2_6 = _mm_subs_epi16(stp1_7, stp1_6);
- stp2_7 = _mm_adds_epi16(stp1_7, stp1_6);
+ tmp0 = _mm_adds_epi16(stp1_4, stp1_5);
+ tmp1 = _mm_subs_epi16(stp1_4, stp1_5);
+
+ stp2_4 = tmp0;
+ stp2_5 = _mm_unpacklo_epi64(tmp1, zero);
+ stp2_6 = _mm_unpackhi_epi64(tmp1, zero);
}
// Stage3
{ //NOLINTconst __m128i lo_56 = _mm_unpacklo_epi16(stp2_5, stp2_6);
- stp1_0 = _mm_adds_epi16(stp2_0, stp2_3);
- stp1_1 = _mm_adds_epi16(stp2_1, stp2_2);
- stp1_2 = _mm_subs_epi16(stp2_1, stp2_2);
- stp1_3 = _mm_subs_epi16(stp2_0, stp2_3);
+ tmp4 = _mm_adds_epi16(stp2_0, stp2_2);
+ tmp6 = _mm_subs_epi16(stp2_0, stp2_2);
+
+ stp1_2 = _mm_unpackhi_epi64(tmp6, tmp4);
+ stp1_3 = _mm_unpacklo_epi64(tmp6, tmp4);
+
tmp0 = _mm_madd_epi16(lo_56, stg3_0);
tmp2 = _mm_madd_epi16(lo_56, stg2_0); // stg3_1 = stg2_0
@@ -1105,27 +1111,19 @@
tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS);
tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS);
- stp1_5 = _mm_packs_epi32(tmp0, zero);
- stp1_6 = _mm_packs_epi32(tmp2, zero);
+ stp1_5 = _mm_packs_epi32(tmp0, tmp2);
}
// Stage4
- in0 = _mm_adds_epi16(stp1_0, stp2_7);
- in1 = _mm_adds_epi16(stp1_1, stp1_6);
- in2 = _mm_adds_epi16(stp1_2, stp1_5);
- in3 = _mm_adds_epi16(stp1_3, stp2_4);
- in4 = _mm_subs_epi16(stp1_3, stp2_4);
- in5 = _mm_subs_epi16(stp1_2, stp1_5);
- in6 = _mm_subs_epi16(stp1_1, stp1_6);
- in7 = _mm_subs_epi16(stp1_0, stp2_7);
+ tmp0 = _mm_adds_epi16(stp1_3, stp2_4);
+ tmp1 = _mm_adds_epi16(stp1_2, stp1_5);
+ tmp2 = _mm_subs_epi16(stp1_3, stp2_4);
+ tmp3 = _mm_subs_epi16(stp1_2, stp1_5);
- // Columns. 4x8 Transpose
- TRANSPOSE_4X8(in0, in1, in2, in3, in4, in5, in6, in7, in0, in1, in2, in3,
- in4, in5, in6, in7)
+ TRANSPOSE_4X8_10(tmp0, tmp1, tmp2, tmp3, in0, in1, in2, in3)
+ in4 = in5 = in6 = in7 = zero;
- // 1D idct8x8
IDCT8_1D
-
// Final rounding and shift
in0 = _mm_adds_epi16(in0, final_rounding);
in1 = _mm_adds_epi16(in1, final_rounding);