267 строки
11 KiB
C
267 строки
11 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <assert.h>
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#include "./vpx_scale_rtcd.h"
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#include "./vpx_config.h"
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#include "vpx/vpx_integer.h"
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#include "vp10/common/blockd.h"
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#include "vp10/common/reconinter.h"
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#include "vp10/common/reconintra.h"
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#if CONFIG_VP9_HIGHBITDEPTH
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void vp10_highbd_build_inter_predictor(const uint8_t *src, int src_stride,
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uint8_t *dst, int dst_stride,
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const MV *src_mv,
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const struct scale_factors *sf,
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int w, int h, int ref,
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const InterpKernel *kernel,
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enum mv_precision precision,
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int x, int y, int bd) {
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const int is_q4 = precision == MV_PRECISION_Q4;
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const MV mv_q4 = { is_q4 ? src_mv->row : src_mv->row * 2,
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is_q4 ? src_mv->col : src_mv->col * 2 };
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MV32 mv = vp10_scale_mv(&mv_q4, x, y, sf);
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const int subpel_x = mv.col & SUBPEL_MASK;
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const int subpel_y = mv.row & SUBPEL_MASK;
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src += (mv.row >> SUBPEL_BITS) * src_stride + (mv.col >> SUBPEL_BITS);
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high_inter_predictor(src, src_stride, dst, dst_stride, subpel_x, subpel_y,
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sf, w, h, ref, kernel, sf->x_step_q4, sf->y_step_q4, bd);
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}
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#endif // CONFIG_VP9_HIGHBITDEPTH
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void vp10_build_inter_predictor(const uint8_t *src, int src_stride,
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uint8_t *dst, int dst_stride,
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const MV *src_mv,
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const struct scale_factors *sf,
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int w, int h, int ref,
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const InterpKernel *kernel,
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enum mv_precision precision,
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int x, int y) {
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const int is_q4 = precision == MV_PRECISION_Q4;
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const MV mv_q4 = { is_q4 ? src_mv->row : src_mv->row * 2,
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is_q4 ? src_mv->col : src_mv->col * 2 };
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MV32 mv = vp10_scale_mv(&mv_q4, x, y, sf);
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const int subpel_x = mv.col & SUBPEL_MASK;
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const int subpel_y = mv.row & SUBPEL_MASK;
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src += (mv.row >> SUBPEL_BITS) * src_stride + (mv.col >> SUBPEL_BITS);
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inter_predictor(src, src_stride, dst, dst_stride, subpel_x, subpel_y,
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sf, w, h, ref, kernel, sf->x_step_q4, sf->y_step_q4);
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}
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void build_inter_predictors(MACROBLOCKD *xd, int plane, int block,
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int bw, int bh,
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int x, int y, int w, int h,
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int mi_x, int mi_y) {
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struct macroblockd_plane *const pd = &xd->plane[plane];
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const MODE_INFO *mi = xd->mi[0];
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const int is_compound = has_second_ref(&mi->mbmi);
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const InterpKernel *kernel = vp10_filter_kernels[mi->mbmi.interp_filter];
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int ref;
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for (ref = 0; ref < 1 + is_compound; ++ref) {
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const struct scale_factors *const sf = &xd->block_refs[ref]->sf;
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struct buf_2d *const pre_buf = &pd->pre[ref];
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struct buf_2d *const dst_buf = &pd->dst;
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uint8_t *const dst = dst_buf->buf + dst_buf->stride * y + x;
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const MV mv = mi->mbmi.sb_type < BLOCK_8X8
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? average_split_mvs(pd, mi, ref, block)
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: mi->mbmi.mv[ref].as_mv;
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// TODO(jkoleszar): This clamping is done in the incorrect place for the
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// scaling case. It needs to be done on the scaled MV, not the pre-scaling
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// MV. Note however that it performs the subsampling aware scaling so
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// that the result is always q4.
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// mv_precision precision is MV_PRECISION_Q4.
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const MV mv_q4 = clamp_mv_to_umv_border_sb(xd, &mv, bw, bh,
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pd->subsampling_x,
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pd->subsampling_y);
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uint8_t *pre;
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MV32 scaled_mv;
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int xs, ys, subpel_x, subpel_y;
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const int is_scaled = vp10_is_scaled(sf);
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if (is_scaled) {
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pre = pre_buf->buf + scaled_buffer_offset(x, y, pre_buf->stride, sf);
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scaled_mv = vp10_scale_mv(&mv_q4, mi_x + x, mi_y + y, sf);
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xs = sf->x_step_q4;
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ys = sf->y_step_q4;
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} else {
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pre = pre_buf->buf + (y * pre_buf->stride + x);
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scaled_mv.row = mv_q4.row;
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scaled_mv.col = mv_q4.col;
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xs = ys = 16;
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}
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subpel_x = scaled_mv.col & SUBPEL_MASK;
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subpel_y = scaled_mv.row & SUBPEL_MASK;
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pre += (scaled_mv.row >> SUBPEL_BITS) * pre_buf->stride
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+ (scaled_mv.col >> SUBPEL_BITS);
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#if CONFIG_VP9_HIGHBITDEPTH
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if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
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high_inter_predictor(pre, pre_buf->stride, dst, dst_buf->stride,
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subpel_x, subpel_y, sf, w, h, ref, kernel, xs, ys,
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xd->bd);
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} else {
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inter_predictor(pre, pre_buf->stride, dst, dst_buf->stride,
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subpel_x, subpel_y, sf, w, h, ref, kernel, xs, ys);
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}
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#else
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inter_predictor(pre, pre_buf->stride, dst, dst_buf->stride,
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subpel_x, subpel_y, sf, w, h, ref, kernel, xs, ys);
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#endif // CONFIG_VP9_HIGHBITDEPTH
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}
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}
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void vp10_build_inter_predictor_sub8x8(MACROBLOCKD *xd, int plane,
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int i, int ir, int ic,
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int mi_row, int mi_col) {
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struct macroblockd_plane *const pd = &xd->plane[plane];
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MODE_INFO *const mi = xd->mi[0];
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const BLOCK_SIZE plane_bsize = get_plane_block_size(mi->mbmi.sb_type, pd);
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const int width = 4 * num_4x4_blocks_wide_lookup[plane_bsize];
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const int height = 4 * num_4x4_blocks_high_lookup[plane_bsize];
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uint8_t *const dst = &pd->dst.buf[(ir * pd->dst.stride + ic) << 2];
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int ref;
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const int is_compound = has_second_ref(&mi->mbmi);
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const InterpKernel *kernel = vp10_filter_kernels[mi->mbmi.interp_filter];
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for (ref = 0; ref < 1 + is_compound; ++ref) {
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const uint8_t *pre =
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&pd->pre[ref].buf[(ir * pd->pre[ref].stride + ic) << 2];
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#if CONFIG_VP9_HIGHBITDEPTH
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if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
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vp10_highbd_build_inter_predictor(pre, pd->pre[ref].stride,
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dst, pd->dst.stride,
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&mi->bmi[i].as_mv[ref].as_mv,
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&xd->block_refs[ref]->sf, width, height,
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ref, kernel, MV_PRECISION_Q3,
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mi_col * MI_SIZE + 4 * ic,
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mi_row * MI_SIZE + 4 * ir, xd->bd);
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} else {
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vp10_build_inter_predictor(pre, pd->pre[ref].stride,
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dst, pd->dst.stride,
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&mi->bmi[i].as_mv[ref].as_mv,
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&xd->block_refs[ref]->sf, width, height, ref,
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kernel, MV_PRECISION_Q3,
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mi_col * MI_SIZE + 4 * ic,
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mi_row * MI_SIZE + 4 * ir);
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}
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#else
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vp10_build_inter_predictor(pre, pd->pre[ref].stride,
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dst, pd->dst.stride,
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&mi->bmi[i].as_mv[ref].as_mv,
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&xd->block_refs[ref]->sf, width, height, ref,
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kernel, MV_PRECISION_Q3,
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mi_col * MI_SIZE + 4 * ic,
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mi_row * MI_SIZE + 4 * ir);
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#endif // CONFIG_VP9_HIGHBITDEPTH
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}
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}
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static void build_inter_predictors_for_planes(MACROBLOCKD *xd, BLOCK_SIZE bsize,
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int mi_row, int mi_col,
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int plane_from, int plane_to) {
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int plane;
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const int mi_x = mi_col * MI_SIZE;
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const int mi_y = mi_row * MI_SIZE;
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for (plane = plane_from; plane <= plane_to; ++plane) {
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const struct macroblockd_plane *pd = &xd->plane[plane];
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const int bw = 4 * num_4x4_blocks_wide_lookup[bsize] >> pd->subsampling_x;
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const int bh = 4 * num_4x4_blocks_high_lookup[bsize] >> pd->subsampling_y;
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if (xd->mi[0]->mbmi.sb_type < BLOCK_8X8) {
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const PARTITION_TYPE bp = bsize - xd->mi[0]->mbmi.sb_type;
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const int have_vsplit = bp != PARTITION_HORZ;
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const int have_hsplit = bp != PARTITION_VERT;
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const int num_4x4_w = 2 >> ((!have_vsplit) | pd->subsampling_x);
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const int num_4x4_h = 2 >> ((!have_hsplit) | pd->subsampling_y);
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const int pw = 8 >> (have_vsplit | pd->subsampling_x);
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const int ph = 8 >> (have_hsplit | pd->subsampling_y);
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int x, y;
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assert(bp != PARTITION_NONE && bp < PARTITION_TYPES);
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assert(bsize == BLOCK_8X8);
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assert(pw * num_4x4_w == bw && ph * num_4x4_h == bh);
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for (y = 0; y < num_4x4_h; ++y)
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for (x = 0; x < num_4x4_w; ++x)
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build_inter_predictors(xd, plane, y * 2 + x, bw, bh,
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4 * x, 4 * y, pw, ph, mi_x, mi_y);
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} else {
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build_inter_predictors(xd, plane, 0, bw, bh,
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0, 0, bw, bh, mi_x, mi_y);
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}
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}
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}
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void vp10_build_inter_predictors_sby(MACROBLOCKD *xd, int mi_row, int mi_col,
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BLOCK_SIZE bsize) {
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build_inter_predictors_for_planes(xd, bsize, mi_row, mi_col, 0, 0);
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}
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void vp10_build_inter_predictors_sbp(MACROBLOCKD *xd, int mi_row, int mi_col,
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BLOCK_SIZE bsize, int plane) {
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build_inter_predictors_for_planes(xd, bsize, mi_row, mi_col, plane, plane);
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}
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void vp10_build_inter_predictors_sbuv(MACROBLOCKD *xd, int mi_row, int mi_col,
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BLOCK_SIZE bsize) {
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build_inter_predictors_for_planes(xd, bsize, mi_row, mi_col, 1,
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MAX_MB_PLANE - 1);
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}
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void vp10_build_inter_predictors_sb(MACROBLOCKD *xd, int mi_row, int mi_col,
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BLOCK_SIZE bsize) {
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build_inter_predictors_for_planes(xd, bsize, mi_row, mi_col, 0,
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MAX_MB_PLANE - 1);
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}
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void vp10_setup_dst_planes(struct macroblockd_plane planes[MAX_MB_PLANE],
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const YV12_BUFFER_CONFIG *src,
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int mi_row, int mi_col) {
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uint8_t *const buffers[MAX_MB_PLANE] = { src->y_buffer, src->u_buffer,
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src->v_buffer};
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const int strides[MAX_MB_PLANE] = { src->y_stride, src->uv_stride,
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src->uv_stride};
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int i;
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for (i = 0; i < MAX_MB_PLANE; ++i) {
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struct macroblockd_plane *const pd = &planes[i];
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setup_pred_plane(&pd->dst, buffers[i], strides[i], mi_row, mi_col, NULL,
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pd->subsampling_x, pd->subsampling_y);
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}
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}
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void vp10_setup_pre_planes(MACROBLOCKD *xd, int idx,
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const YV12_BUFFER_CONFIG *src,
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int mi_row, int mi_col,
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const struct scale_factors *sf) {
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if (src != NULL) {
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int i;
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uint8_t *const buffers[MAX_MB_PLANE] = { src->y_buffer, src->u_buffer,
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src->v_buffer};
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const int strides[MAX_MB_PLANE] = { src->y_stride, src->uv_stride,
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src->uv_stride};
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for (i = 0; i < MAX_MB_PLANE; ++i) {
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struct macroblockd_plane *const pd = &xd->plane[i];
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setup_pred_plane(&pd->pre[idx], buffers[i], strides[i], mi_row, mi_col,
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sf, pd->subsampling_x, pd->subsampling_y);
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}
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}
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}
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