Commit 5232e35b authored by Linfeng Zhang's avatar Linfeng Zhang

Update vpx_idct16x16_10_add_sse2()

Change-Id: Ia0e20f5fa47382af5785221eebb05212b40bd35c
parent 7f4acf87
......@@ -164,6 +164,19 @@ void vpx_idct8x8_64_add_sse2(const tran_low_t *input, uint8_t *dest,
write_buffer_8x8(in, dest, stride);
}
void vpx_idct8x8_12_add_sse2(const tran_low_t *input, uint8_t *dest,
int stride) {
__m128i io[8];
io[0] = load_input_data4(input + 0 * 8);
io[1] = load_input_data4(input + 1 * 8);
io[2] = load_input_data4(input + 2 * 8);
io[3] = load_input_data4(input + 3 * 8);
idct8x8_12_add_kernel_sse2(io);
write_buffer_8x8(io, dest, stride);
}
static INLINE void recon_and_store_8_dual(uint8_t *const dest,
const __m128i in_x,
const int stride) {
......@@ -409,72 +422,6 @@ void iadst8_sse2(__m128i *in) {
in[7] = _mm_sub_epi16(k__const_0, s1);
}
void vpx_idct8x8_12_add_sse2(const tran_low_t *input, uint8_t *dest,
int stride) {
__m128i io[8];
io[0] = load_input_data4(input + 0 * 8);
io[1] = load_input_data4(input + 1 * 8);
io[2] = load_input_data4(input + 2 * 8);
io[3] = load_input_data4(input + 3 * 8);
idct8x8_12_add_kernel_sse2(io);
write_buffer_8x8(io, dest, stride);
}
#define IDCT16_10 \
/* Stage2 */ \
multiplication_and_add(&in[1], &zero, &zero, &in[3], &stg2_0, &stg2_1, \
&stg2_6, &stg2_7, &stp1_8_0, &stp1_15, &stp1_11, \
&stp1_12_0); \
\
/* Stage3 */ \
multiplication_and_add_2(&in[2], &zero, &stg3_0, &stg3_1, &stp2_4, &stp2_7); \
\
stp1_9 = stp1_8_0; \
stp1_10 = stp1_11; \
stp1_13 = stp1_12_0; \
stp1_14 = stp1_15; \
\
/* Stage4 */ \
multiplication_and_add_2(&in[0], &zero, &stg4_0, &stg4_1, &stp1_0, &stp1_1); \
stp2_5 = stp2_4; \
stp2_6 = stp2_7; \
\
multiplication_and_add(&stp1_9, &stp1_14, &stp1_10, &stp1_13, &stg4_4, \
&stg4_5, &stg4_6, &stg4_7, &stp2_9, &stp2_14, \
&stp2_10, &stp2_13); \
\
/* Stage5 */ \
stp1_2 = stp1_1; \
stp1_3 = stp1_0; \
multiplication_and_add_2(&stp2_6, &stp2_5, &stg4_1, &stg4_0, &stp1_5, \
&stp1_6); \
\
stp1_8 = _mm_add_epi16(stp1_8_0, stp1_11); \
stp1_9 = _mm_add_epi16(stp2_9, stp2_10); \
stp1_10 = _mm_sub_epi16(stp2_9, stp2_10); \
stp1_11 = _mm_sub_epi16(stp1_8_0, stp1_11); \
\
stp1_12 = _mm_sub_epi16(stp1_15, stp1_12_0); \
stp1_13 = _mm_sub_epi16(stp2_14, stp2_13); \
stp1_14 = _mm_add_epi16(stp2_14, stp2_13); \
stp1_15 = _mm_add_epi16(stp1_15, stp1_12_0); \
\
/* Stage6 */ \
stp2_0 = _mm_add_epi16(stp1_0, stp2_7); \
stp2_1 = _mm_add_epi16(stp1_1, stp1_6); \
stp2_2 = _mm_add_epi16(stp1_2, stp1_5); \
stp2_3 = _mm_add_epi16(stp1_3, stp2_4); \
stp2_4 = _mm_sub_epi16(stp1_3, stp2_4); \
stp2_5 = _mm_sub_epi16(stp1_2, stp1_5); \
stp2_6 = _mm_sub_epi16(stp1_1, stp1_6); \
stp2_7 = _mm_sub_epi16(stp1_0, stp2_7); \
\
multiplication_and_add(&stp1_10, &stp1_13, &stp1_11, &stp1_12, &stg6_0, \
&stg4_0, &stg6_0, &stg4_0, &stp2_10, &stp2_13, \
&stp2_11, &stp2_12);
static INLINE void idct16_8col(__m128i *const io /*io[16]*/) {
const __m128i k__cospi_p16_p16 = pair_set_epi16(cospi_16_64, cospi_16_64);
const __m128i k__cospi_m16_p16 = pair_set_epi16(-cospi_16_64, cospi_16_64);
......@@ -682,6 +629,225 @@ void vpx_idct16x16_38_add_sse2(const tran_low_t *input, uint8_t *dest,
}
}
static INLINE void idct16x16_10_pass1(const __m128i *const input /*input[4]*/,
__m128i *const output /*output[16]*/) {
const __m128i zero = _mm_setzero_si128();
const __m128i k__cospi_p16_p16 = pair_set_epi16(cospi_16_64, cospi_16_64);
const __m128i k__cospi_m16_p16 = pair_set_epi16(-cospi_16_64, cospi_16_64);
__m128i step1[16], step2[16];
transpose_16bit_4x4(input, output);
// stage 2
{
const __m128i k__cospi_p30_m02 = pair_set_epi16(cospi_30_64, -cospi_2_64);
const __m128i k__cospi_p02_p30 = pair_set_epi16(cospi_2_64, cospi_30_64);
const __m128i k__cospi_p06_m26 = pair_set_epi16(cospi_6_64, -cospi_26_64);
const __m128i k__cospi_p26_p06 = pair_set_epi16(cospi_26_64, cospi_6_64);
const __m128i lo_1_15 = _mm_unpackhi_epi16(output[0], zero);
const __m128i lo_13_3 = _mm_unpackhi_epi16(zero, output[1]);
step2[8] = idct_calc_wraplow_sse2(k__cospi_p30_m02, k__cospi_p02_p30,
lo_1_15); // step2 8&15
step2[11] = idct_calc_wraplow_sse2(k__cospi_p06_m26, k__cospi_p26_p06,
lo_13_3); // step2 11&12
}
// stage 3
{
const __m128i k__cospi_p28_m04 = pair_set_epi16(cospi_28_64, -cospi_4_64);
const __m128i k__cospi_p04_p28 = pair_set_epi16(cospi_4_64, cospi_28_64);
const __m128i lo_2_14 = _mm_unpacklo_epi16(output[1], zero);
step1[4] = idct_calc_wraplow_sse2(k__cospi_p28_m04, k__cospi_p04_p28,
lo_2_14); // step1 4&7
step1[13] = _mm_unpackhi_epi64(step2[11], zero);
step1[14] = _mm_unpackhi_epi64(step2[8], zero);
}
// stage 4
{
const __m128i k__cospi_m08_p24 = pair_set_epi16(-cospi_8_64, cospi_24_64);
const __m128i k__cospi_p24_p08 = pair_set_epi16(cospi_24_64, cospi_8_64);
const __m128i k__cospi_m24_m08 = pair_set_epi16(-cospi_24_64, -cospi_8_64);
const __m128i lo_0_8 = _mm_unpacklo_epi16(output[0], zero);
const __m128i lo_9_14 = _mm_unpacklo_epi16(step2[8], step1[14]);
const __m128i lo_10_13 = _mm_unpacklo_epi16(step2[11], step1[13]);
const __m128i t = idct_madd_round_shift_sse2(lo_0_8, k__cospi_p16_p16);
step1[0] = _mm_packs_epi32(t, t); // step2 0&1
step2[9] = idct_calc_wraplow_sse2(k__cospi_m08_p24, k__cospi_p24_p08,
lo_9_14); // step2 9&14
step2[10] = idct_calc_wraplow_sse2(k__cospi_m24_m08, k__cospi_m08_p24,
lo_10_13); // step2 10&13
step2[6] = _mm_unpackhi_epi64(step1[4], zero);
}
// stage 5
{
const __m128i lo_5_6 = _mm_unpacklo_epi16(step1[4], step2[6]);
step1[6] = idct_calc_wraplow_sse2(k__cospi_p16_p16, k__cospi_m16_p16,
lo_5_6); // step1 6&5
step1[8] = _mm_add_epi16(step2[8], step2[11]);
step1[9] = _mm_add_epi16(step2[9], step2[10]);
step1[10] = _mm_sub_epi16(step2[9], step2[10]);
step1[11] = _mm_sub_epi16(step2[8], step2[11]);
step1[12] = _mm_unpackhi_epi64(step1[11], zero);
step1[13] = _mm_unpackhi_epi64(step1[10], zero);
step1[14] = _mm_unpackhi_epi64(step1[9], zero);
step1[15] = _mm_unpackhi_epi64(step1[8], zero);
}
// stage 6
{
const __m128i lo_10_13 = _mm_unpacklo_epi16(step1[10], step1[13]);
const __m128i lo_11_12 = _mm_unpacklo_epi16(step1[11], step1[12]);
step2[10] = idct_calc_wraplow_sse2(k__cospi_m16_p16, k__cospi_p16_p16,
lo_10_13); // step2 10&13
step2[11] = idct_calc_wraplow_sse2(k__cospi_m16_p16, k__cospi_p16_p16,
lo_11_12); // step2 11&12
step2[13] = _mm_unpackhi_epi64(step2[10], zero);
step2[12] = _mm_unpackhi_epi64(step2[11], zero);
step2[3] = _mm_add_epi16(step1[0], step1[4]);
step2[1] = _mm_add_epi16(step1[0], step1[6]);
step2[6] = _mm_sub_epi16(step1[0], step1[6]);
step2[4] = _mm_sub_epi16(step1[0], step1[4]);
step2[0] = _mm_unpackhi_epi64(step2[3], zero);
step2[2] = _mm_unpackhi_epi64(step2[1], zero);
step2[5] = _mm_unpackhi_epi64(step2[6], zero);
step2[7] = _mm_unpackhi_epi64(step2[4], zero);
}
// stage 7. Left 8x16 only.
output[0] = _mm_add_epi16(step2[0], step1[15]);
output[1] = _mm_add_epi16(step2[1], step1[14]);
output[2] = _mm_add_epi16(step2[2], step2[13]);
output[3] = _mm_add_epi16(step2[3], step2[12]);
output[4] = _mm_add_epi16(step2[4], step2[11]);
output[5] = _mm_add_epi16(step2[5], step2[10]);
output[6] = _mm_add_epi16(step2[6], step1[9]);
output[7] = _mm_add_epi16(step2[7], step1[8]);
output[8] = _mm_sub_epi16(step2[7], step1[8]);
output[9] = _mm_sub_epi16(step2[6], step1[9]);
output[10] = _mm_sub_epi16(step2[5], step2[10]);
output[11] = _mm_sub_epi16(step2[4], step2[11]);
output[12] = _mm_sub_epi16(step2[3], step2[12]);
output[13] = _mm_sub_epi16(step2[2], step2[13]);
output[14] = _mm_sub_epi16(step2[1], step1[14]);
output[15] = _mm_sub_epi16(step2[0], step1[15]);
}
static INLINE void idct16x16_10_pass2(__m128i *const l /*l[8]*/,
__m128i *const io /*io[16]*/) {
const __m128i zero = _mm_setzero_si128();
const __m128i k__cospi_p16_p16 = pair_set_epi16(cospi_16_64, cospi_16_64);
const __m128i k__cospi_m16_p16 = pair_set_epi16(-cospi_16_64, cospi_16_64);
__m128i step1[16], step2[16];
transpose_16bit_4x8(l, io);
// stage 2
{
const __m128i k__cospi_p30_m02 = pair_set_epi16(cospi_30_64, -cospi_2_64);
const __m128i k__cospi_p02_p30 = pair_set_epi16(cospi_2_64, cospi_30_64);
const __m128i k__cospi_p06_m26 = pair_set_epi16(cospi_6_64, -cospi_26_64);
const __m128i k__cospi_p26_p06 = pair_set_epi16(cospi_26_64, cospi_6_64);
multiplication_and_add(&io[1], &zero, &zero, &io[3], &k__cospi_p30_m02,
&k__cospi_p02_p30, &k__cospi_p06_m26,
&k__cospi_p26_p06, &step2[8], &step2[15], &step2[11],
&step2[12]);
}
// stage 3
{
const __m128i k__cospi_p28_m04 = pair_set_epi16(cospi_28_64, -cospi_4_64);
const __m128i k__cospi_p04_p28 = pair_set_epi16(cospi_4_64, cospi_28_64);
multiplication_and_add_2(&io[2], &zero, &k__cospi_p28_m04,
&k__cospi_p04_p28, &step1[4], &step1[7]);
}
// stage 4
{
const __m128i k__cospi_m08_p24 = pair_set_epi16(-cospi_8_64, cospi_24_64);
const __m128i k__cospi_p24_p08 = pair_set_epi16(cospi_24_64, cospi_8_64);
const __m128i k__cospi_m24_m08 = pair_set_epi16(-cospi_24_64, -cospi_8_64);
multiplication_and_add_2(&zero, &io[0], &k__cospi_p16_p16,
&k__cospi_m16_p16, &step1[0], &step1[1]);
multiplication_and_add(&step2[8], &step2[15], &step2[11], &step2[12],
&k__cospi_m08_p24, &k__cospi_p24_p08,
&k__cospi_m24_m08, &k__cospi_m08_p24, &step2[9],
&step2[14], &step2[10], &step2[13]);
}
// stage 5
multiplication_and_add_2(&step1[4], &step1[7], &k__cospi_m16_p16,
&k__cospi_p16_p16, &step1[5], &step1[6]);
step1[8] = _mm_add_epi16(step2[8], step2[11]);
step1[9] = _mm_add_epi16(step2[9], step2[10]);
step1[10] = _mm_sub_epi16(step2[9], step2[10]);
step1[11] = _mm_sub_epi16(step2[8], step2[11]);
step1[12] = _mm_sub_epi16(step2[15], step2[12]);
step1[13] = _mm_sub_epi16(step2[14], step2[13]);
step1[14] = _mm_add_epi16(step2[14], step2[13]);
step1[15] = _mm_add_epi16(step2[15], step2[12]);
// stage 6
step2[0] = _mm_add_epi16(step1[0], step1[7]);
step2[1] = _mm_add_epi16(step1[1], step1[6]);
step2[2] = _mm_add_epi16(step1[1], step1[5]);
step2[3] = _mm_add_epi16(step1[0], step1[4]);
step2[4] = _mm_sub_epi16(step1[0], step1[4]);
step2[5] = _mm_sub_epi16(step1[1], step1[5]);
step2[6] = _mm_sub_epi16(step1[1], step1[6]);
step2[7] = _mm_sub_epi16(step1[0], step1[7]);
multiplication_and_add(&step1[10], &step1[13], &step1[11], &step1[12],
&k__cospi_m16_p16, &k__cospi_p16_p16,
&k__cospi_m16_p16, &k__cospi_p16_p16, &step2[10],
&step2[13], &step2[11], &step2[12]);
// stage 7
io[0] = _mm_add_epi16(step2[0], step1[15]);
io[1] = _mm_add_epi16(step2[1], step1[14]);
io[2] = _mm_add_epi16(step2[2], step2[13]);
io[3] = _mm_add_epi16(step2[3], step2[12]);
io[4] = _mm_add_epi16(step2[4], step2[11]);
io[5] = _mm_add_epi16(step2[5], step2[10]);
io[6] = _mm_add_epi16(step2[6], step1[9]);
io[7] = _mm_add_epi16(step2[7], step1[8]);
io[8] = _mm_sub_epi16(step2[7], step1[8]);
io[9] = _mm_sub_epi16(step2[6], step1[9]);
io[10] = _mm_sub_epi16(step2[5], step2[10]);
io[11] = _mm_sub_epi16(step2[4], step2[11]);
io[12] = _mm_sub_epi16(step2[3], step2[12]);
io[13] = _mm_sub_epi16(step2[2], step2[13]);
io[14] = _mm_sub_epi16(step2[1], step1[14]);
io[15] = _mm_sub_epi16(step2[0], step1[15]);
}
void vpx_idct16x16_10_add_sse2(const tran_low_t *input, uint8_t *dest,
int stride) {
__m128i in[16], l[16];
int i;
// First 1-D inverse DCT
// Load input data.
in[0] = load_input_data4(input + 0 * 16);
in[1] = load_input_data4(input + 1 * 16);
in[2] = load_input_data4(input + 2 * 16);
in[3] = load_input_data4(input + 3 * 16);
idct16x16_10_pass1(in, l);
// Second 1-D inverse transform, performed per 8x16 block
for (i = 0; i < 2; i++) {
int j;
idct16x16_10_pass2(l + 8 * i, in);
for (j = 0; j < 16; ++j) {
write_buffer_8x1(dest + j * stride, in[j]);
}
dest += 8;
}
}
static INLINE void recon_and_store_16(uint8_t *const dest, const __m128i in_x) {
const __m128i zero = _mm_setzero_si128();
__m128i d0, d1;
......@@ -1144,178 +1310,6 @@ void iadst16_sse2(__m128i *in0, __m128i *in1) {
iadst16_8col(in1);
}
void vpx_idct16x16_10_add_sse2(const tran_low_t *input, uint8_t *dest,
int stride) {
const __m128i zero = _mm_setzero_si128();
const __m128i stg2_0 = pair_set_epi16(cospi_30_64, -cospi_2_64);
const __m128i stg2_1 = pair_set_epi16(cospi_2_64, cospi_30_64);
const __m128i stg2_6 = pair_set_epi16(cospi_6_64, -cospi_26_64);
const __m128i stg2_7 = pair_set_epi16(cospi_26_64, cospi_6_64);
const __m128i stg3_0 = pair_set_epi16(cospi_28_64, -cospi_4_64);
const __m128i stg3_1 = pair_set_epi16(cospi_4_64, cospi_28_64);
const __m128i stg4_0 = pair_set_epi16(cospi_16_64, cospi_16_64);
const __m128i stg4_1 = pair_set_epi16(cospi_16_64, -cospi_16_64);
const __m128i stg4_4 = pair_set_epi16(-cospi_8_64, cospi_24_64);
const __m128i stg4_5 = pair_set_epi16(cospi_24_64, cospi_8_64);
const __m128i stg4_6 = pair_set_epi16(-cospi_24_64, -cospi_8_64);
const __m128i stg4_7 = pair_set_epi16(-cospi_8_64, cospi_24_64);
const __m128i stg6_0 = pair_set_epi16(-cospi_16_64, cospi_16_64);
__m128i in[16], l[16];
__m128i stp1_0, stp1_1, stp1_2, stp1_3, stp1_4, stp1_5, stp1_6, stp1_8,
stp1_9, stp1_10, stp1_11, stp1_12, stp1_13, stp1_14, stp1_15, stp1_8_0,
stp1_12_0;
__m128i stp2_0, stp2_1, stp2_2, stp2_3, stp2_4, stp2_5, stp2_6, stp2_7,
stp2_8, stp2_9, stp2_10, stp2_11, stp2_12, stp2_13, stp2_14;
__m128i tmp0, tmp1, tmp2, tmp3;
int i;
// First 1-D inverse DCT
// Load input data.
in[0] = load_input_data4(input + 0 * 16);
in[1] = load_input_data4(input + 1 * 16);
in[2] = load_input_data4(input + 2 * 16);
in[3] = load_input_data4(input + 3 * 16);
transpose_16bit_4x4(in, in);
// Stage2
{
const __m128i lo_1_15 = _mm_unpackhi_epi16(in[0], zero);
const __m128i lo_13_3 = _mm_unpackhi_epi16(zero, in[1]);
stp2_8 = idct_calc_wraplow_sse2(stg2_0, stg2_1, lo_1_15);
stp2_11 = idct_calc_wraplow_sse2(stg2_6, stg2_7, lo_13_3);
}
// Stage3
{
const __m128i lo_2_14 = _mm_unpacklo_epi16(in[1], zero);
stp1_4 = idct_calc_wraplow_sse2(stg3_0, stg3_1, lo_2_14);
stp1_13 = _mm_unpackhi_epi64(stp2_11, zero);
stp1_14 = _mm_unpackhi_epi64(stp2_8, zero);
}
// Stage4
{
const __m128i lo_0_8 = _mm_unpacklo_epi16(in[0], zero);
const __m128i lo_9_14 = _mm_unpacklo_epi16(stp2_8, stp1_14);
const __m128i lo_10_13 = _mm_unpacklo_epi16(stp2_11, stp1_13);
tmp0 = idct_madd_round_shift_sse2(lo_0_8, stg4_0);
tmp1 = idct_madd_round_shift_sse2(lo_0_8, stg4_1);
stp1_0 = _mm_packs_epi32(tmp0, tmp0);
stp1_1 = _mm_packs_epi32(tmp1, tmp1);
stp2_9 = idct_calc_wraplow_sse2(stg4_4, stg4_5, lo_9_14);
stp2_10 = idct_calc_wraplow_sse2(stg4_6, stg4_7, lo_10_13);
stp2_6 = _mm_unpackhi_epi64(stp1_4, zero);
}
// Stage5 and Stage6
{
tmp0 = _mm_add_epi16(stp2_8, stp2_11);
tmp1 = _mm_sub_epi16(stp2_8, stp2_11);
tmp2 = _mm_add_epi16(stp2_9, stp2_10);
tmp3 = _mm_sub_epi16(stp2_9, stp2_10);
stp1_9 = _mm_unpacklo_epi64(tmp2, zero);
stp1_10 = _mm_unpacklo_epi64(tmp3, zero);
stp1_8 = _mm_unpacklo_epi64(tmp0, zero);
stp1_11 = _mm_unpacklo_epi64(tmp1, zero);
stp1_13 = _mm_unpackhi_epi64(tmp3, zero);
stp1_14 = _mm_unpackhi_epi64(tmp2, zero);
stp1_12 = _mm_unpackhi_epi64(tmp1, zero);
stp1_15 = _mm_unpackhi_epi64(tmp0, zero);
}
// Stage6
{
const __m128i lo_6_5 = _mm_unpacklo_epi16(stp2_6, stp1_4);
const __m128i lo_10_13 = _mm_unpacklo_epi16(stp1_10, stp1_13);
const __m128i lo_11_12 = _mm_unpacklo_epi16(stp1_11, stp1_12);
stp1_6 = idct_calc_wraplow_sse2(stg4_0, stg4_1, lo_6_5);
tmp0 = idct_madd_round_shift_sse2(lo_10_13, stg6_0);
tmp1 = idct_madd_round_shift_sse2(lo_10_13, stg4_0);
tmp2 = idct_madd_round_shift_sse2(lo_11_12, stg6_0);
tmp3 = idct_madd_round_shift_sse2(lo_11_12, stg4_0);
stp2_10 = _mm_packs_epi32(tmp0, zero);
stp2_13 = _mm_packs_epi32(tmp1, zero);
stp2_11 = _mm_packs_epi32(tmp2, zero);
stp2_12 = _mm_packs_epi32(tmp3, zero);
tmp0 = _mm_add_epi16(stp1_0, stp1_4);
tmp1 = _mm_sub_epi16(stp1_0, stp1_4);
tmp2 = _mm_add_epi16(stp1_1, stp1_6);
tmp3 = _mm_sub_epi16(stp1_1, stp1_6);
stp2_0 = _mm_unpackhi_epi64(tmp0, zero);
stp2_1 = _mm_unpacklo_epi64(tmp2, zero);
stp2_2 = _mm_unpackhi_epi64(tmp2, zero);
stp2_3 = _mm_unpacklo_epi64(tmp0, zero);
stp2_4 = _mm_unpacklo_epi64(tmp1, zero);
stp2_5 = _mm_unpackhi_epi64(tmp3, zero);
stp2_6 = _mm_unpacklo_epi64(tmp3, zero);
stp2_7 = _mm_unpackhi_epi64(tmp1, zero);
}
// Stage7. Left 8x16 only.
l[0] = _mm_add_epi16(stp2_0, stp1_15);
l[1] = _mm_add_epi16(stp2_1, stp1_14);
l[2] = _mm_add_epi16(stp2_2, stp2_13);
l[3] = _mm_add_epi16(stp2_3, stp2_12);
l[4] = _mm_add_epi16(stp2_4, stp2_11);
l[5] = _mm_add_epi16(stp2_5, stp2_10);
l[6] = _mm_add_epi16(stp2_6, stp1_9);
l[7] = _mm_add_epi16(stp2_7, stp1_8);
l[8] = _mm_sub_epi16(stp2_7, stp1_8);
l[9] = _mm_sub_epi16(stp2_6, stp1_9);
l[10] = _mm_sub_epi16(stp2_5, stp2_10);
l[11] = _mm_sub_epi16(stp2_4, stp2_11);
l[12] = _mm_sub_epi16(stp2_3, stp2_12);
l[13] = _mm_sub_epi16(stp2_2, stp2_13);
l[14] = _mm_sub_epi16(stp2_1, stp1_14);
l[15] = _mm_sub_epi16(stp2_0, stp1_15);
// Second 1-D inverse transform, performed per 8x16 block
for (i = 0; i < 2; i++) {
int j;
transpose_16bit_4x8(l + 8 * i, in);
IDCT16_10
// Stage7
in[0] = _mm_add_epi16(stp2_0, stp1_15);
in[1] = _mm_add_epi16(stp2_1, stp1_14);
in[2] = _mm_add_epi16(stp2_2, stp2_13);
in[3] = _mm_add_epi16(stp2_3, stp2_12);
in[4] = _mm_add_epi16(stp2_4, stp2_11);
in[5] = _mm_add_epi16(stp2_5, stp2_10);
in[6] = _mm_add_epi16(stp2_6, stp1_9);
in[7] = _mm_add_epi16(stp2_7, stp1_8);
in[8] = _mm_sub_epi16(stp2_7, stp1_8);
in[9] = _mm_sub_epi16(stp2_6, stp1_9);
in[10] = _mm_sub_epi16(stp2_5, stp2_10);
in[11] = _mm_sub_epi16(stp2_4, stp2_11);
in[12] = _mm_sub_epi16(stp2_3, stp2_12);
in[13] = _mm_sub_epi16(stp2_2, stp2_13);
in[14] = _mm_sub_epi16(stp2_1, stp1_14);
in[15] = _mm_sub_epi16(stp2_0, stp1_15);
for (j = 0; j < 16; ++j) {
write_buffer_8x1(dest + j * stride, in[j]);
}
dest += 8;
}
}
#define IDCT32_34 \
/* Stage1 */ \
multiplication_and_add_2(&in[1], &zero, &stg1_0, &stg1_1, &stp1_16, \
......
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