ref: ccba289f8d1760a45b972685a64eb829529b70ab
parent: 5556d1184169168e59656863456c88c3f958ca45
author: Jingning Han <jingning@google.com>
date: Thu May 29 14:14:17 EDT 2014
Fast computation path for forward transform and quantization This commit enables a fast path computational flow for forward transformation. It checks the sse and variance of prediction residuals and decides if the quantized coefficients are all zero, dc only, or more. It then selects the corresponding coding path in the forward transformation and quantization stage. It is currently enabled in rtc coding mode. Will do it for rd coding mode next. In speed -6, the runtime for pedestrian_area 1080p at 1000 kbps goes down from 14234 ms to 13704 ms, i.e., about 4% speed-up. Overall coding performance for rtc set is changed by -0.18%. Change-Id: I0452da1786d59bc8bcbe0a35fdae9f623d1d44e1
--- a/vp9/common/vp9_rtcd_defs.pl
+++ b/vp9/common/vp9_rtcd_defs.pl
@@ -744,14 +744,26 @@
add_proto qw/void vp9_fwht4x4/, "const int16_t *input, int16_t *output, int stride";
specialize qw/vp9_fwht4x4/, "$mmx_x86inc";
+add_proto qw/void vp9_fdct4x4_1/, "const int16_t *input, int16_t *output, int stride";
+specialize qw/vp9_fdct4x4_1 sse2/;
+
add_proto qw/void vp9_fdct4x4/, "const int16_t *input, int16_t *output, int stride";
specialize qw/vp9_fdct4x4 sse2 avx2/;
+add_proto qw/void vp9_fdct8x8_1/, "const int16_t *input, int16_t *output, int stride";
+specialize qw/vp9_fdct8x8_1 sse2/;
+
add_proto qw/void vp9_fdct8x8/, "const int16_t *input, int16_t *output, int stride";
specialize qw/vp9_fdct8x8 sse2 avx2/, "$ssse3_x86_64";
+add_proto qw/void vp9_fdct16x16_1/, "const int16_t *input, int16_t *output, int stride";
+specialize qw/vp9_fdct16x16_1 sse2/;
+
add_proto qw/void vp9_fdct16x16/, "const int16_t *input, int16_t *output, int stride";
specialize qw/vp9_fdct16x16 sse2 avx2/;
+
+add_proto qw/void vp9_fdct32x32_1/, "const int16_t *input, int16_t *output, int stride";
+specialize qw/vp9_fdct32x32_1 sse2/;
add_proto qw/void vp9_fdct32x32/, "const int16_t *input, int16_t *output, int stride";
specialize qw/vp9_fdct32x32 sse2 avx2/;
--- a/vp9/encoder/vp9_block.h
+++ b/vp9/encoder/vp9_block.h
@@ -28,6 +28,7 @@
struct buf_2d src;
// Quantizer setings
+ int16_t *quant_fp;
int16_t *quant;
int16_t *quant_shift;
int16_t *zbin;
@@ -104,6 +105,9 @@
// indicate if it is in the rd search loop or encoding process
int use_lp32x32fdct;
int skip_encode;
+
+ // skip forward transform and quantization
+ int skip_txfm;
// Used to store sub partition's choices.
MV pred_mv[MAX_REF_FRAMES];
--- a/vp9/encoder/vp9_context_tree.h
+++ b/vp9/encoder/vp9_context_tree.h
@@ -33,6 +33,7 @@
int is_coded;
int num_4x4_blk;
int skip;
+ int skip_txfm;
int best_mode_index;
int hybrid_pred_diff;
int comp_pred_diff;
--- a/vp9/encoder/vp9_dct.c
+++ b/vp9/encoder/vp9_dct.c
@@ -43,6 +43,17 @@
output[3] = fdct_round_shift(temp2);
}
+void vp9_fdct4x4_1_c(const int16_t *input, int16_t *output, int stride) {+ int r, c;
+ int16_t sum = 0;
+ for (r = 0; r < 4; ++r)
+ for (c = 0; c < 4; ++c)
+ sum += input[r * stride + c];
+
+ output[0] = sum << 3;
+ output[1] = 0;
+}
+
void vp9_fdct4x4_c(const int16_t *input, int16_t *output, int stride) {// The 2D transform is done with two passes which are actually pretty
// similar. In the first one, we transform the columns and transpose
@@ -240,6 +251,17 @@
output[7] = fdct_round_shift(t3);
}
+void vp9_fdct8x8_1_c(const int16_t *input, int16_t *output, int stride) {+ int r, c;
+ int16_t sum = 0;
+ for (r = 0; r < 8; ++r)
+ for (c = 0; c < 8; ++c)
+ sum += input[r * stride + c];
+
+ output[0] = sum * 8;
+ output[1] = 0;
+}
+
void vp9_fdct8x8_c(const int16_t *input, int16_t *final_output, int stride) {int i, j;
int16_t intermediate[64];
@@ -311,6 +333,17 @@
}
}
+void vp9_fdct16x16_1_c(const int16_t *input, int16_t *output, int stride) {+ int r, c;
+ int16_t sum = 0;
+ for (r = 0; r < 16; ++r)
+ for (c = 0; c < 16; ++c)
+ sum += input[r * stride + c];
+
+ output[0] = sum * 8;
+ output[1] = 0;
+}
+
void vp9_fdct16x16_c(const int16_t *input, int16_t *output, int stride) {// The 2D transform is done with two passes which are actually pretty
// similar. In the first one, we transform the columns and transpose
@@ -1327,6 +1360,17 @@
output[23] = dct_32_round(step[29] * cospi_23_64 + step[18] * -cospi_9_64);
output[15] = dct_32_round(step[30] * cospi_15_64 + step[17] * -cospi_17_64);
output[31] = dct_32_round(step[31] * cospi_31_64 + step[16] * -cospi_1_64);
+}
+
+void vp9_fdct32x32_1_c(const int16_t *input, int16_t *output, int stride) {+ int r, c;
+ int16_t sum = 0;
+ for (r = 0; r < 32; ++r)
+ for (c = 0; c < 32; ++c)
+ sum += input[r * stride + c];
+
+ output[0] = sum << 2;
+ output[1] = 0;
}
void vp9_fdct32x32_c(const int16_t *input, int16_t *out, int stride) {--- a/vp9/encoder/vp9_encodeframe.c
+++ b/vp9/encoder/vp9_encodeframe.c
@@ -1338,6 +1338,7 @@
}
x->skip = ctx->skip;
+ x->skip_txfm = mbmi->segment_id ? 0 : ctx->skip_txfm;
}
static void encode_b_rt(VP9_COMP *cpi, const TileInfo *const tile,
@@ -2577,6 +2578,7 @@
nonrd_pick_sb_modes(cpi, tile, mi_row, mi_col,
&this_rate, &this_dist, bsize);
ctx->mic.mbmi = xd->mi[0]->mbmi;
+ ctx->skip_txfm = x->skip_txfm;
if (this_rate != INT_MAX) {int pl = partition_plane_context(xd, mi_row, mi_col, bsize);
@@ -2663,6 +2665,7 @@
&this_rate, &this_dist, subsize);
pc_tree->horizontal[0].mic.mbmi = xd->mi[0]->mbmi;
+ pc_tree->horizontal[0].skip_txfm = x->skip_txfm;
sum_rd = RDCOST(x->rdmult, x->rddiv, sum_rate, sum_dist);
@@ -2672,6 +2675,7 @@
&this_rate, &this_dist, subsize);
pc_tree->horizontal[1].mic.mbmi = xd->mi[0]->mbmi;
+ pc_tree->horizontal[1].skip_txfm = x->skip_txfm;
if (this_rate == INT_MAX) {sum_rd = INT64_MAX;
@@ -2701,6 +2705,7 @@
nonrd_pick_sb_modes(cpi, tile, mi_row, mi_col,
&this_rate, &this_dist, subsize);
pc_tree->vertical[0].mic.mbmi = xd->mi[0]->mbmi;
+ pc_tree->vertical[0].skip_txfm = x->skip_txfm;
sum_rd = RDCOST(x->rdmult, x->rddiv, sum_rate, sum_dist);
if (sum_rd < best_rd && mi_col + ms < cm->mi_cols) {load_pred_mv(x, ctx);
@@ -2707,6 +2712,7 @@
nonrd_pick_sb_modes(cpi, tile, mi_row, mi_col + ms,
&this_rate, &this_dist, subsize);
pc_tree->vertical[1].mic.mbmi = xd->mi[0]->mbmi;
+ pc_tree->vertical[1].skip_txfm = x->skip_txfm;
if (this_rate == INT_MAX) {sum_rd = INT64_MAX;
} else {@@ -2795,14 +2801,17 @@
case PARTITION_NONE:
nonrd_pick_sb_modes(cpi, tile, mi_row, mi_col, totrate, totdist, subsize);
pc_tree->none.mic.mbmi = xd->mi[0]->mbmi;
+ pc_tree->none.skip_txfm = x->skip_txfm;
break;
case PARTITION_VERT:
nonrd_pick_sb_modes(cpi, tile, mi_row, mi_col, totrate, totdist, subsize);
pc_tree->vertical[0].mic.mbmi = xd->mi[0]->mbmi;
+ pc_tree->vertical[0].skip_txfm = x->skip_txfm;
if (mi_col + hbs < cm->mi_cols) {nonrd_pick_sb_modes(cpi, tile, mi_row, mi_col + hbs,
&rate, &dist, subsize);
pc_tree->vertical[1].mic.mbmi = xd->mi[0]->mbmi;
+ pc_tree->vertical[1].skip_txfm = x->skip_txfm;
if (rate != INT_MAX && dist != INT64_MAX &&
*totrate != INT_MAX && *totdist != INT64_MAX) {*totrate += rate;
@@ -2813,10 +2822,12 @@
case PARTITION_HORZ:
nonrd_pick_sb_modes(cpi, tile, mi_row, mi_col, totrate, totdist, subsize);
pc_tree->horizontal[0].mic.mbmi = xd->mi[0]->mbmi;
+ pc_tree->horizontal[0].skip_txfm = x->skip_txfm;
if (mi_row + hbs < cm->mi_rows) {nonrd_pick_sb_modes(cpi, tile, mi_row + hbs, mi_col,
&rate, &dist, subsize);
pc_tree->horizontal[1].mic.mbmi = xd->mi[0]->mbmi;
+ pc_tree->horizontal[1].skip_txfm = x->skip_txfm;
if (rate != INT_MAX && dist != INT64_MAX &&
*totrate != INT_MAX && *totdist != INT64_MAX) {*totrate += rate;
@@ -3019,6 +3030,7 @@
init_encode_frame_mb_context(cpi);
set_prev_mi(cm);
+ x->skip_txfm = 0;
if (sf->use_nonrd_pick_mode) {// Initialize internal buffer pointers for rtc coding, where non-RD
// mode decision is used and hence no buffer pointer swap needed.
--- a/vp9/encoder/vp9_encodemb.c
+++ b/vp9/encoder/vp9_encodemb.c
@@ -301,6 +301,52 @@
vp9_fdct32x32(src, dst, src_stride);
}
+void vp9_xform_quant_fp(MACROBLOCK *x, int plane, int block,
+ BLOCK_SIZE plane_bsize, TX_SIZE tx_size) {+ MACROBLOCKD *const xd = &x->e_mbd;
+ const struct macroblock_plane *const p = &x->plane[plane];
+ const struct macroblockd_plane *const pd = &xd->plane[plane];
+ int16_t *const coeff = BLOCK_OFFSET(p->coeff, block);
+ int16_t *const qcoeff = BLOCK_OFFSET(p->qcoeff, block);
+ int16_t *const dqcoeff = BLOCK_OFFSET(pd->dqcoeff, block);
+ uint16_t *const eob = &p->eobs[block];
+ const int diff_stride = 4 * num_4x4_blocks_wide_lookup[plane_bsize];
+ int i, j;
+ const int16_t *src_diff;
+
+ txfrm_block_to_raster_xy(plane_bsize, tx_size, block, &i, &j);
+ src_diff = &p->src_diff[4 * (j * diff_stride + i)];
+
+ switch (tx_size) {+ case TX_32X32:
+ vp9_fdct32x32_1(src_diff, coeff, diff_stride);
+ vp9_quantize_dc_32x32(coeff, x->skip_block, p->round,
+ p->quant_fp[0], qcoeff, dqcoeff,
+ pd->dequant[0], eob);
+ break;
+ case TX_16X16:
+ vp9_fdct16x16_1(src_diff, coeff, diff_stride);
+ vp9_quantize_dc(coeff, x->skip_block, p->round,
+ p->quant_fp[0], qcoeff, dqcoeff,
+ pd->dequant[0], eob);
+ break;
+ case TX_8X8:
+ vp9_fdct8x8_1(src_diff, coeff, diff_stride);
+ vp9_quantize_dc(coeff, x->skip_block, p->round,
+ p->quant_fp[0], qcoeff, dqcoeff,
+ pd->dequant[0], eob);
+ break;
+ case TX_4X4:
+ x->fwd_txm4x4(src_diff, coeff, diff_stride);
+ vp9_quantize_dc(coeff, x->skip_block, p->round,
+ p->quant_fp[0], qcoeff, dqcoeff,
+ pd->dequant[0], eob);
+ break;
+ default:
+ assert(0);
+ }
+}
+
void vp9_xform_quant(MACROBLOCK *x, int plane, int block,
BLOCK_SIZE plane_bsize, TX_SIZE tx_size) {MACROBLOCKD *const xd = &x->e_mbd;
@@ -376,8 +422,19 @@
return;
}
- if (!x->skip_recode)
- vp9_xform_quant(x, plane, block, plane_bsize, tx_size);
+ if (x->skip_txfm == 0) {+ // full forward transform and quantization
+ if (!x->skip_recode)
+ vp9_xform_quant(x, plane, block, plane_bsize, tx_size);
+ } else if (x->skip_txfm == 2) {+ // fast path forward transform and quantization
+ vp9_xform_quant_fp(x, plane, block, plane_bsize, tx_size);
+ } else {+ // skip forward transform
+ p->eobs[block] = 0;
+ *a = *l = 0;
+ return;
+ }
if (x->optimize && (!x->skip_recode || !x->skip_optimize)) {const int ctx = combine_entropy_contexts(*a, *l);
--- a/vp9/encoder/vp9_encodemb.h
+++ b/vp9/encoder/vp9_encodemb.h
@@ -22,7 +22,8 @@
void vp9_encode_sb(MACROBLOCK *x, BLOCK_SIZE bsize);
void vp9_encode_sby_pass1(MACROBLOCK *x, BLOCK_SIZE bsize);
-
+void vp9_xform_quant_fp(MACROBLOCK *x, int plane, int block,
+ BLOCK_SIZE plane_bsize, TX_SIZE tx_size);
void vp9_xform_quant(MACROBLOCK *x, int plane, int block,
BLOCK_SIZE plane_bsize, TX_SIZE tx_size);
--- a/vp9/encoder/vp9_pickmode.c
+++ b/vp9/encoder/vp9_pickmode.c
@@ -156,24 +156,28 @@
unsigned int sse;
int rate;
int64_t dist;
-
struct macroblock_plane *const p = &x->plane[0];
struct macroblockd_plane *const pd = &xd->plane[0];
-
+ const int quant = pd->dequant[1];
unsigned int var = cpi->fn_ptr[bsize].vf(p->src.buf, p->src.stride,
pd->dst.buf, pd->dst.stride, &sse);
-
*var_y = var;
*sse_y = sse;
+ if (sse < pd->dequant[0] * pd->dequant[0] >> 6)
+ x->skip_txfm = 1;
+ else if (var < quant * quant >> 6)
+ x->skip_txfm = 2;
+ else
+ x->skip_txfm = 0;
+
// TODO(jingning) This is a temporary solution to account for frames with
// light changes. Need to customize the rate-distortion modeling for non-RD
// mode decision.
if ((sse >> 3) > var)
sse = var;
-
vp9_model_rd_from_var_lapndz(var + sse, 1 << num_pels_log2_lookup[bsize],
- pd->dequant[1] >> 3, &rate, &dist);
+ quant >> 3, &rate, &dist);
*out_rate_sum = rate;
*out_dist_sum = dist << 3;
}
@@ -199,6 +203,7 @@
VP9_ALT_FLAG };
int64_t best_rd = INT64_MAX;
int64_t this_rd = INT64_MAX;
+ int skip_txfm = 0;
int rate = INT_MAX;
int64_t dist = INT64_MAX;
@@ -341,6 +346,7 @@
if (cost < best_cost) {best_filter = filter;
best_cost = cost;
+ skip_txfm = x->skip_txfm;
}
}
@@ -349,6 +355,7 @@
dist = pf_dist[mbmi->interp_filter];
var_y = pf_var[mbmi->interp_filter];
sse_y = pf_sse[mbmi->interp_filter];
+ x->skip_txfm = skip_txfm;
} else {mbmi->interp_filter = (filter_ref == SWITCHABLE) ? EIGHTTAP: filter_ref;
vp9_build_inter_predictors_sby(xd, mi_row, mi_col, bsize);
@@ -438,6 +445,7 @@
best_mode = this_mode;
best_pred_filter = mbmi->interp_filter;
best_ref_frame = ref_frame;
+ skip_txfm = x->skip_txfm;
}
if (x->skip)
@@ -450,6 +458,7 @@
mbmi->ref_frame[0] = best_ref_frame;
mbmi->mv[0].as_int = frame_mv[best_mode][best_ref_frame].as_int;
xd->mi[0]->bmi[0].as_mv[0].as_int = mbmi->mv[0].as_int;
+ x->skip_txfm = skip_txfm;
// Perform intra prediction search, if the best SAD is above a certain
// threshold.
@@ -474,6 +483,8 @@
mbmi->ref_frame[0] = INTRA_FRAME;
mbmi->uv_mode = this_mode;
mbmi->mv[0].as_int = INVALID_MV;
+ } else {+ x->skip_txfm = skip_txfm;
}
}
}
--- a/vp9/encoder/vp9_quantize.c
+++ b/vp9/encoder/vp9_quantize.c
@@ -19,6 +19,50 @@
#include "vp9/encoder/vp9_quantize.h"
#include "vp9/encoder/vp9_rdopt.h"
+void vp9_quantize_dc(const int16_t *coeff_ptr, int skip_block,
+ const int16_t *round_ptr, const int16_t quant,
+ int16_t *qcoeff_ptr, int16_t *dqcoeff_ptr,
+ const int16_t dequant_ptr, uint16_t *eob_ptr) {+ int eob = -1;
+
+ if (!skip_block) {+ const int rc = 0;
+ const int coeff = coeff_ptr[rc];
+ const int coeff_sign = (coeff >> 31);
+ const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign;
+
+ int tmp = clamp(abs_coeff + round_ptr[rc != 0], INT16_MIN, INT16_MAX);
+ tmp = (tmp * quant) >> 16;
+ qcoeff_ptr[rc] = (tmp ^ coeff_sign) - coeff_sign;
+ dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr;
+ if (tmp)
+ eob = 0;
+ }
+ *eob_ptr = eob + 1;
+}
+
+void vp9_quantize_dc_32x32(const int16_t *coeff_ptr, int skip_block,
+ const int16_t *round_ptr, const int16_t quant,
+ int16_t *qcoeff_ptr, int16_t *dqcoeff_ptr,
+ const int16_t dequant_ptr, uint16_t *eob_ptr) {+ int eob = -1;
+
+ if (!skip_block) {+ const int rc = 0;
+ const int coeff = coeff_ptr[rc];
+ const int coeff_sign = (coeff >> 31);
+ const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign;
+
+ int tmp = clamp(abs_coeff + round_ptr[rc != 0], INT16_MIN, INT16_MAX);
+ tmp = (tmp * quant) >> 15;
+ qcoeff_ptr[rc] = (tmp ^ coeff_sign) - coeff_sign;
+ dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr / 2;
+ if (tmp)
+ eob = 0;
+ }
+ *eob_ptr = eob + 1;
+}
+
void vp9_quantize_b_c(const int16_t *coeff_ptr, intptr_t count,
int skip_block,
const int16_t *zbin_ptr, const int16_t *round_ptr,
@@ -167,6 +211,7 @@
quant = i == 0 ? vp9_dc_quant(q, cm->y_dc_delta_q)
: vp9_ac_quant(q, 0);
invert_quant(&quants->y_quant[q][i], &quants->y_quant_shift[q][i], quant);
+ quants->y_quant_fp[q][i] = (1 << 16) / quant;
quants->y_zbin[q][i] = ROUND_POWER_OF_TWO(qzbin_factor * quant, 7);
quants->y_round[q][i] = (qrounding_factor * quant) >> 7;
cm->y_dequant[q][i] = quant;
@@ -176,6 +221,7 @@
: vp9_ac_quant(q, cm->uv_ac_delta_q);
invert_quant(&quants->uv_quant[q][i],
&quants->uv_quant_shift[q][i], quant);
+ quants->uv_quant_fp[q][i] = (1 << 16) / quant;
quants->uv_zbin[q][i] = ROUND_POWER_OF_TWO(qzbin_factor * quant, 7);
quants->uv_round[q][i] = (qrounding_factor * quant) >> 7;
cm->uv_dequant[q][i] = quant;
@@ -193,6 +239,7 @@
for (i = 2; i < 8; i++) {quants->y_quant[q][i] = quants->y_quant[q][1];
+ quants->y_quant_fp[q][i] = quants->y_quant_fp[q][1];
quants->y_quant_shift[q][i] = quants->y_quant_shift[q][1];
quants->y_zbin[q][i] = quants->y_zbin[q][1];
quants->y_round[q][i] = quants->y_round[q][1];
@@ -199,6 +246,7 @@
cm->y_dequant[q][i] = cm->y_dequant[q][1];
quants->uv_quant[q][i] = quants->uv_quant[q][1];
+ quants->uv_quant_fp[q][i] = quants->uv_quant_fp[q][1];
quants->uv_quant_shift[q][i] = quants->uv_quant_shift[q][1];
quants->uv_zbin[q][i] = quants->uv_zbin[q][1];
quants->uv_round[q][i] = quants->uv_round[q][1];
@@ -227,6 +275,7 @@
// Y
x->plane[0].quant = quants->y_quant[qindex];
+ x->plane[0].quant_fp = quants->y_quant_fp[qindex];
x->plane[0].quant_shift = quants->y_quant_shift[qindex];
x->plane[0].zbin = quants->y_zbin[qindex];
x->plane[0].round = quants->y_round[qindex];
@@ -236,6 +285,7 @@
// UV
for (i = 1; i < 3; i++) {x->plane[i].quant = quants->uv_quant[qindex];
+ x->plane[i].quant_fp = quants->uv_quant_fp[qindex];
x->plane[i].quant_shift = quants->uv_quant_shift[qindex];
x->plane[i].zbin = quants->uv_zbin[qindex];
x->plane[i].round = quants->uv_round[qindex];
--- a/vp9/encoder/vp9_quantize.h
+++ b/vp9/encoder/vp9_quantize.h
@@ -24,6 +24,11 @@
DECLARE_ALIGNED(16, int16_t, y_zbin[QINDEX_RANGE][8]);
DECLARE_ALIGNED(16, int16_t, y_round[QINDEX_RANGE][8]);
+ // TODO(jingning): in progress of re-working the quantization. will decide
+ // if we want to deprecate the current use of y_quant.
+ DECLARE_ALIGNED(16, int16_t, y_quant_fp[QINDEX_RANGE][8]);
+ DECLARE_ALIGNED(16, int16_t, uv_quant_fp[QINDEX_RANGE][8]);
+
DECLARE_ALIGNED(16, int16_t, uv_quant[QINDEX_RANGE][8]);
DECLARE_ALIGNED(16, int16_t, uv_quant_shift[QINDEX_RANGE][8]);
DECLARE_ALIGNED(16, int16_t, uv_zbin[QINDEX_RANGE][8]);
@@ -37,6 +42,14 @@
#endif
} QUANTS;
+void vp9_quantize_dc(const int16_t *coeff_ptr, int skip_block,
+ const int16_t *round_ptr, const int16_t quant_ptr,
+ int16_t *qcoeff_ptr, int16_t *dqcoeff_ptr,
+ const int16_t dequant_ptr, uint16_t *eob_ptr);
+void vp9_quantize_dc_32x32(const int16_t *coeff_ptr, int skip_block,
+ const int16_t *round_ptr, const int16_t quant_ptr,
+ int16_t *qcoeff_ptr, int16_t *dqcoeff_ptr,
+ const int16_t dequant_ptr, uint16_t *eob_ptr);
void vp9_regular_quantize_b_4x4(MACROBLOCK *x, int plane, int block,
const int16_t *scan, const int16_t *iscan);
--- a/vp9/encoder/x86/vp9_dct_sse2.c
+++ b/vp9/encoder/x86/vp9_dct_sse2.c
@@ -12,6 +12,35 @@
#include "vp9/common/vp9_idct.h" // for cospi constants
#include "vpx_ports/mem.h"
+void vp9_fdct4x4_1_sse2(const int16_t *input, int16_t *output, int stride) {+ __m128i in0, in1;
+ __m128i tmp;
+ const __m128i zero = _mm_setzero_si128();
+ in0 = _mm_loadl_epi64((const __m128i *)(input + 0 * stride));
+ in1 = _mm_loadl_epi64((const __m128i *)(input + 1 * stride));
+ in1 = _mm_unpacklo_epi64(in1, _mm_loadl_epi64((const __m128i *)
+ (input + 2 * stride)));
+ in0 = _mm_unpacklo_epi64(in0, _mm_loadl_epi64((const __m128i *)
+ (input + 3 * stride)));
+
+ tmp = _mm_add_epi16(in0, in1);
+ in0 = _mm_unpacklo_epi16(zero, tmp);
+ in1 = _mm_unpackhi_epi16(zero, tmp);
+ in0 = _mm_srai_epi32(in0, 16);
+ in1 = _mm_srai_epi32(in1, 16);
+
+ tmp = _mm_add_epi32(in0, in1);
+ in0 = _mm_unpacklo_epi32(tmp, zero);
+ in1 = _mm_unpackhi_epi32(tmp, zero);
+
+ tmp = _mm_add_epi32(in0, in1);
+ in0 = _mm_srli_si128(tmp, 8);
+
+ in1 = _mm_add_epi32(tmp, in0);
+ in0 = _mm_slli_epi32(in1, 1);
+ _mm_store_si128((__m128i *)(output), in0);
+}
+
void vp9_fdct4x4_sse2(const int16_t *input, int16_t *output, int stride) {// This 2D transform implements 4 vertical 1D transforms followed
// by 4 horizontal 1D transforms. The multiplies and adds are as given
@@ -377,6 +406,46 @@
}
}
+void vp9_fdct8x8_1_sse2(const int16_t *input, int16_t *output, int stride) {+ __m128i in0 = _mm_load_si128((const __m128i *)(input + 0 * stride));
+ __m128i in1 = _mm_load_si128((const __m128i *)(input + 1 * stride));
+ __m128i in2 = _mm_load_si128((const __m128i *)(input + 2 * stride));
+ __m128i in3 = _mm_load_si128((const __m128i *)(input + 3 * stride));
+ __m128i u0, u1, sum;
+
+ u0 = _mm_add_epi16(in0, in1);
+ u1 = _mm_add_epi16(in2, in3);
+
+ in0 = _mm_load_si128((const __m128i *)(input + 4 * stride));
+ in1 = _mm_load_si128((const __m128i *)(input + 5 * stride));
+ in2 = _mm_load_si128((const __m128i *)(input + 6 * stride));
+ in3 = _mm_load_si128((const __m128i *)(input + 7 * stride));
+
+ sum = _mm_add_epi16(u0, u1);
+
+ in0 = _mm_add_epi16(in0, in1);
+ in2 = _mm_add_epi16(in2, in3);
+ sum = _mm_add_epi16(sum, in0);
+
+ u0 = _mm_setzero_si128();
+ sum = _mm_add_epi16(sum, in2);
+
+ in0 = _mm_unpacklo_epi16(u0, sum);
+ in1 = _mm_unpackhi_epi16(u0, sum);
+ in0 = _mm_srai_epi32(in0, 16);
+ in1 = _mm_srai_epi32(in1, 16);
+
+ sum = _mm_add_epi32(in0, in1);
+ in0 = _mm_unpacklo_epi32(sum, u0);
+ in1 = _mm_unpackhi_epi32(sum, u0);
+
+ sum = _mm_add_epi32(in0, in1);
+ in0 = _mm_srli_si128(sum, 8);
+
+ in1 = _mm_add_epi32(sum, in0);
+ _mm_store_si128((__m128i *)(output), in1);
+}
+
void vp9_fdct8x8_sse2(const int16_t *input, int16_t *output, int stride) {int pass;
// Constants
@@ -1168,6 +1237,74 @@
}
}
+void vp9_fdct16x16_1_sse2(const int16_t *input, int16_t *output, int stride) {+ __m128i in0, in1, in2, in3;
+ __m128i u0, u1;
+ __m128i sum = _mm_setzero_si128();
+ int i;
+
+ for (i = 0; i < 2; ++i) {+ input += 8 * i;
+ in0 = _mm_load_si128((const __m128i *)(input + 0 * stride));
+ in1 = _mm_load_si128((const __m128i *)(input + 1 * stride));
+ in2 = _mm_load_si128((const __m128i *)(input + 2 * stride));
+ in3 = _mm_load_si128((const __m128i *)(input + 3 * stride));
+
+ u0 = _mm_add_epi16(in0, in1);
+ u1 = _mm_add_epi16(in2, in3);
+ sum = _mm_add_epi16(sum, u0);
+
+ in0 = _mm_load_si128((const __m128i *)(input + 4 * stride));
+ in1 = _mm_load_si128((const __m128i *)(input + 5 * stride));
+ in2 = _mm_load_si128((const __m128i *)(input + 6 * stride));
+ in3 = _mm_load_si128((const __m128i *)(input + 7 * stride));
+
+ sum = _mm_add_epi16(sum, u1);
+ u0 = _mm_add_epi16(in0, in1);
+ u1 = _mm_add_epi16(in2, in3);
+ sum = _mm_add_epi16(sum, u0);
+
+ in0 = _mm_load_si128((const __m128i *)(input + 8 * stride));
+ in1 = _mm_load_si128((const __m128i *)(input + 9 * stride));
+ in2 = _mm_load_si128((const __m128i *)(input + 10 * stride));
+ in3 = _mm_load_si128((const __m128i *)(input + 11 * stride));
+
+ sum = _mm_add_epi16(sum, u1);
+ u0 = _mm_add_epi16(in0, in1);
+ u1 = _mm_add_epi16(in2, in3);
+ sum = _mm_add_epi16(sum, u0);
+
+ in0 = _mm_load_si128((const __m128i *)(input + 12 * stride));
+ in1 = _mm_load_si128((const __m128i *)(input + 13 * stride));
+ in2 = _mm_load_si128((const __m128i *)(input + 14 * stride));
+ in3 = _mm_load_si128((const __m128i *)(input + 15 * stride));
+
+ sum = _mm_add_epi16(sum, u1);
+ u0 = _mm_add_epi16(in0, in1);
+ u1 = _mm_add_epi16(in2, in3);
+ sum = _mm_add_epi16(sum, u0);
+
+ sum = _mm_add_epi16(sum, u1);
+ }
+
+ u0 = _mm_setzero_si128();
+ in0 = _mm_unpacklo_epi16(u0, sum);
+ in1 = _mm_unpackhi_epi16(u0, sum);
+ in0 = _mm_srai_epi32(in0, 16);
+ in1 = _mm_srai_epi32(in1, 16);
+
+ sum = _mm_add_epi32(in0, in1);
+ in0 = _mm_unpacklo_epi32(sum, u0);
+ in1 = _mm_unpackhi_epi32(sum, u0);
+
+ sum = _mm_add_epi32(in0, in1);
+ in0 = _mm_srli_si128(sum, 8);
+
+ in1 = _mm_add_epi32(sum, in0);
+ in1 = _mm_srai_epi32(in1, 1);
+ _mm_store_si128((__m128i *)(output), in1);
+}
+
void vp9_fdct16x16_sse2(const int16_t *input, int16_t *output, int stride) {// The 2D transform is done with two passes which are actually pretty
// similar. In the first one, we transform the columns and transpose
@@ -2678,6 +2815,77 @@
assert(0);
break;
}
+}
+
+void vp9_fdct32x32_1_sse2(const int16_t *input, int16_t *output, int stride) {+ __m128i in0, in1, in2, in3;
+ __m128i u0, u1;
+ __m128i sum = _mm_setzero_si128();
+ int i;
+
+ for (i = 0; i < 8; ++i) {+ in0 = _mm_load_si128((const __m128i *)(input + 0));
+ in1 = _mm_load_si128((const __m128i *)(input + 8));
+ in2 = _mm_load_si128((const __m128i *)(input + 16));
+ in3 = _mm_load_si128((const __m128i *)(input + 24));
+
+ input += stride;
+ u0 = _mm_add_epi16(in0, in1);
+ u1 = _mm_add_epi16(in2, in3);
+ sum = _mm_add_epi16(sum, u0);
+
+ in0 = _mm_load_si128((const __m128i *)(input + 0));
+ in1 = _mm_load_si128((const __m128i *)(input + 8));
+ in2 = _mm_load_si128((const __m128i *)(input + 16));
+ in3 = _mm_load_si128((const __m128i *)(input + 24));
+
+ input += stride;
+ sum = _mm_add_epi16(sum, u1);
+ u0 = _mm_add_epi16(in0, in1);
+ u1 = _mm_add_epi16(in2, in3);
+ sum = _mm_add_epi16(sum, u0);
+
+ in0 = _mm_load_si128((const __m128i *)(input + 0));
+ in1 = _mm_load_si128((const __m128i *)(input + 8));
+ in2 = _mm_load_si128((const __m128i *)(input + 16));
+ in3 = _mm_load_si128((const __m128i *)(input + 24));
+
+ input += stride;
+ sum = _mm_add_epi16(sum, u1);
+ u0 = _mm_add_epi16(in0, in1);
+ u1 = _mm_add_epi16(in2, in3);
+ sum = _mm_add_epi16(sum, u0);
+
+ in0 = _mm_load_si128((const __m128i *)(input + 0));
+ in1 = _mm_load_si128((const __m128i *)(input + 8));
+ in2 = _mm_load_si128((const __m128i *)(input + 16));
+ in3 = _mm_load_si128((const __m128i *)(input + 24));
+
+ input += stride;
+ sum = _mm_add_epi16(sum, u1);
+ u0 = _mm_add_epi16(in0, in1);
+ u1 = _mm_add_epi16(in2, in3);
+ sum = _mm_add_epi16(sum, u0);
+
+ sum = _mm_add_epi16(sum, u1);
+ }
+
+ u0 = _mm_setzero_si128();
+ in0 = _mm_unpacklo_epi16(u0, sum);
+ in1 = _mm_unpackhi_epi16(u0, sum);
+ in0 = _mm_srai_epi32(in0, 16);
+ in1 = _mm_srai_epi32(in1, 16);
+
+ sum = _mm_add_epi32(in0, in1);
+ in0 = _mm_unpacklo_epi32(sum, u0);
+ in1 = _mm_unpackhi_epi32(sum, u0);
+
+ sum = _mm_add_epi32(in0, in1);
+ in0 = _mm_srli_si128(sum, 8);
+
+ in1 = _mm_add_epi32(sum, in0);
+ in1 = _mm_srai_epi32(in1, 3);
+ _mm_store_si128((__m128i *)(output), in1);
}
#define FDCT32x32_2D vp9_fdct32x32_rd_sse2
--
⑨