Add m-esr52 at 52.6.0

1 files changed, 317 insertions, 0 deletions

diff --git a/media/libvpx/vp9/common/vp9_reconinter.c b/media/libvpx/vp9/common/vp9_reconinter.c
new file mode 100644
index 000000000..11eaf2e2d
--- /dev/null
+++ b/media/libvpx/vp9/common/vp9_reconinter.c
@@ -0,0 +1,317 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <assert.h>
+
+#include "./vpx_scale_rtcd.h"
+#include "./vpx_config.h"
+
+#include "vpx/vpx_integer.h"
+
+#include "vp9/common/vp9_blockd.h"
+#include "vp9/common/vp9_filter.h"
+#include "vp9/common/vp9_reconinter.h"
+#include "vp9/common/vp9_reconintra.h"
+
+void inter_predictor(const uint8_t *src, int src_stride,
+                            uint8_t *dst, int dst_stride,
+                            const int subpel_x,
+                            const int subpel_y,
+                            const struct scale_factors *sf,
+                            int w, int h, int ref,
+                            const InterpKernel *kernel,
+                            int xs, int ys) {
+  sf->predict[subpel_x != 0][subpel_y != 0][ref](
+      src, src_stride, dst, dst_stride,
+      kernel[subpel_x], xs, kernel[subpel_y], ys, w, h);
+}
+
+#if CONFIG_VP9_HIGHBITDEPTH
+void high_inter_predictor(const uint8_t *src, int src_stride,
+                                 uint8_t *dst, int dst_stride,
+                                 const int subpel_x,
+                                 const int subpel_y,
+                                 const struct scale_factors *sf,
+                                 int w, int h, int ref,
+                                 const InterpKernel *kernel,
+                                 int xs, int ys, int bd) {
+  sf->highbd_predict[subpel_x != 0][subpel_y != 0][ref](
+      src, src_stride, dst, dst_stride,
+      kernel[subpel_x], xs, kernel[subpel_y], ys, w, h, bd);
+}
+
+void vp9_highbd_build_inter_predictor(const uint8_t *src, int src_stride,
+                                      uint8_t *dst, int dst_stride,
+                                      const MV *src_mv,
+                                      const struct scale_factors *sf,
+                                      int w, int h, int ref,
+                                      const InterpKernel *kernel,
+                                      enum mv_precision precision,
+                                      int x, int y, int bd) {
+  const int is_q4 = precision == MV_PRECISION_Q4;
+  const MV mv_q4 = { is_q4 ? src_mv->row : src_mv->row * 2,
+                     is_q4 ? src_mv->col : src_mv->col * 2 };
+  MV32 mv = vp9_scale_mv(&mv_q4, x, y, sf);
+  const int subpel_x = mv.col & SUBPEL_MASK;
+  const int subpel_y = mv.row & SUBPEL_MASK;
+
+  src += (mv.row >> SUBPEL_BITS) * src_stride + (mv.col >> SUBPEL_BITS);
+
+  high_inter_predictor(src, src_stride, dst, dst_stride, subpel_x, subpel_y,
+                       sf, w, h, ref, kernel, sf->x_step_q4, sf->y_step_q4, bd);
+}
+#endif  // CONFIG_VP9_HIGHBITDEPTH
+
+void vp9_build_inter_predictor(const uint8_t *src, int src_stride,
+                               uint8_t *dst, int dst_stride,
+                               const MV *src_mv,
+                               const struct scale_factors *sf,
+                               int w, int h, int ref,
+                               const InterpKernel *kernel,
+                               enum mv_precision precision,
+                               int x, int y) {
+  const int is_q4 = precision == MV_PRECISION_Q4;
+  const MV mv_q4 = { is_q4 ? src_mv->row : src_mv->row * 2,
+                     is_q4 ? src_mv->col : src_mv->col * 2 };
+  MV32 mv = vp9_scale_mv(&mv_q4, x, y, sf);
+  const int subpel_x = mv.col & SUBPEL_MASK;
+  const int subpel_y = mv.row & SUBPEL_MASK;
+
+  src += (mv.row >> SUBPEL_BITS) * src_stride + (mv.col >> SUBPEL_BITS);
+
+  inter_predictor(src, src_stride, dst, dst_stride, subpel_x, subpel_y,
+                  sf, w, h, ref, kernel, sf->x_step_q4, sf->y_step_q4);
+}
+
+static INLINE int round_mv_comp_q4(int value) {
+  return (value < 0 ? value - 2 : value + 2) / 4;
+}
+
+static MV mi_mv_pred_q4(const MODE_INFO *mi, int idx) {
+  MV res = { round_mv_comp_q4(mi->bmi[0].as_mv[idx].as_mv.row +
+                              mi->bmi[1].as_mv[idx].as_mv.row +
+                              mi->bmi[2].as_mv[idx].as_mv.row +
+                              mi->bmi[3].as_mv[idx].as_mv.row),
+             round_mv_comp_q4(mi->bmi[0].as_mv[idx].as_mv.col +
+                              mi->bmi[1].as_mv[idx].as_mv.col +
+                              mi->bmi[2].as_mv[idx].as_mv.col +
+                              mi->bmi[3].as_mv[idx].as_mv.col) };
+  return res;
+}
+
+static INLINE int round_mv_comp_q2(int value) {
+  return (value < 0 ? value - 1 : value + 1) / 2;
+}
+
+static MV mi_mv_pred_q2(const MODE_INFO *mi, int idx, int block0, int block1) {
+  MV res = { round_mv_comp_q2(mi->bmi[block0].as_mv[idx].as_mv.row +
+                              mi->bmi[block1].as_mv[idx].as_mv.row),
+             round_mv_comp_q2(mi->bmi[block0].as_mv[idx].as_mv.col +
+                              mi->bmi[block1].as_mv[idx].as_mv.col) };
+  return res;
+}
+
+// TODO(jkoleszar): yet another mv clamping function :-(
+MV clamp_mv_to_umv_border_sb(const MACROBLOCKD *xd, const MV *src_mv,
+                             int bw, int bh, int ss_x, int ss_y) {
+  // If the MV points so far into the UMV border that no visible pixels
+  // are used for reconstruction, the subpel part of the MV can be
+  // discarded and the MV limited to 16 pixels with equivalent results.
+  const int spel_left = (VP9_INTERP_EXTEND + bw) << SUBPEL_BITS;
+  const int spel_right = spel_left - SUBPEL_SHIFTS;
+  const int spel_top = (VP9_INTERP_EXTEND + bh) << SUBPEL_BITS;
+  const int spel_bottom = spel_top - SUBPEL_SHIFTS;
+  MV clamped_mv = {
+    src_mv->row * (1 << (1 - ss_y)),
+    src_mv->col * (1 << (1 - ss_x))
+  };
+  assert(ss_x <= 1);
+  assert(ss_y <= 1);
+
+  clamp_mv(&clamped_mv,
+           xd->mb_to_left_edge * (1 << (1 - ss_x)) - spel_left,
+           xd->mb_to_right_edge * (1 << (1 - ss_x)) + spel_right,
+           xd->mb_to_top_edge * (1 << (1 - ss_y)) - spel_top,
+           xd->mb_to_bottom_edge * (1 << (1 - ss_y)) + spel_bottom);
+
+  return clamped_mv;
+}
+
+MV average_split_mvs(const struct macroblockd_plane *pd,
+                     const MODE_INFO *mi, int ref, int block) {
+  const int ss_idx = ((pd->subsampling_x > 0) << 1) | (pd->subsampling_y > 0);
+  MV res = {0, 0};
+  switch (ss_idx) {
+    case 0:
+      res = mi->bmi[block].as_mv[ref].as_mv;
+      break;
+    case 1:
+      res = mi_mv_pred_q2(mi, ref, block, block + 2);
+      break;
+    case 2:
+      res = mi_mv_pred_q2(mi, ref, block, block + 1);
+      break;
+    case 3:
+      res = mi_mv_pred_q4(mi, ref);
+      break;
+    default:
+      assert(ss_idx <= 3 && ss_idx >= 0);
+  }
+  return res;
+}
+
+void build_inter_predictors(MACROBLOCKD *xd, int plane, int block,
+                                   int bw, int bh,
+                                   int x, int y, int w, int h,
+                                   int mi_x, int mi_y) {
+  struct macroblockd_plane *const pd = &xd->plane[plane];
+  const MODE_INFO *mi = xd->mi[0];
+  const int is_compound = has_second_ref(&mi->mbmi);
+  const InterpKernel *kernel = vp9_get_interp_kernel(mi->mbmi.interp_filter);
+  int ref;
+
+  for (ref = 0; ref < 1 + is_compound; ++ref) {
+    const struct scale_factors *const sf = &xd->block_refs[ref]->sf;
+    struct buf_2d *const pre_buf = &pd->pre[ref];
+    struct buf_2d *const dst_buf = &pd->dst;
+    uint8_t *const dst = dst_buf->buf + dst_buf->stride * y + x;
+    const MV mv = mi->mbmi.sb_type < BLOCK_8X8
+               ? average_split_mvs(pd, mi, ref, block)
+               : mi->mbmi.mv[ref].as_mv;
+
+    // TODO(jkoleszar): This clamping is done in the incorrect place for the
+    // scaling case. It needs to be done on the scaled MV, not the pre-scaling
+    // MV. Note however that it performs the subsampling aware scaling so
+    // that the result is always q4.
+    // mv_precision precision is MV_PRECISION_Q4.
+    const MV mv_q4 = clamp_mv_to_umv_border_sb(xd, &mv, bw, bh,
+                                               pd->subsampling_x,
+                                               pd->subsampling_y);
+
+    uint8_t *pre;
+    MV32 scaled_mv;
+    int xs, ys, subpel_x, subpel_y;
+    const int is_scaled = vp9_is_scaled(sf);
+
+    if (is_scaled) {
+      pre = pre_buf->buf + scaled_buffer_offset(x, y, pre_buf->stride, sf);
+      scaled_mv = vp9_scale_mv(&mv_q4, mi_x + x, mi_y + y, sf);
+      xs = sf->x_step_q4;
+      ys = sf->y_step_q4;
+    } else {
+      pre = pre_buf->buf + (y * pre_buf->stride + x);
+      scaled_mv.row = mv_q4.row;
+      scaled_mv.col = mv_q4.col;
+      xs = ys = 16;
+    }
+    subpel_x = scaled_mv.col & SUBPEL_MASK;
+    subpel_y = scaled_mv.row & SUBPEL_MASK;
+    pre += (scaled_mv.row >> SUBPEL_BITS) * pre_buf->stride
+           + (scaled_mv.col >> SUBPEL_BITS);
+
+#if CONFIG_VP9_HIGHBITDEPTH
+    if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
+      high_inter_predictor(pre, pre_buf->stride, dst, dst_buf->stride,
+                           subpel_x, subpel_y, sf, w, h, ref, kernel, xs, ys,
+                           xd->bd);
+    } else {
+      inter_predictor(pre, pre_buf->stride, dst, dst_buf->stride,
+                      subpel_x, subpel_y, sf, w, h, ref, kernel, xs, ys);
+    }
+#else
+    inter_predictor(pre, pre_buf->stride, dst, dst_buf->stride,
+                    subpel_x, subpel_y, sf, w, h, ref, kernel, xs, ys);
+#endif  // CONFIG_VP9_HIGHBITDEPTH
+  }
+}
+
+static void build_inter_predictors_for_planes(MACROBLOCKD *xd, BLOCK_SIZE bsize,
+                                              int mi_row, int mi_col,
+                                              int plane_from, int plane_to) {
+  int plane;
+  const int mi_x = mi_col * MI_SIZE;
+  const int mi_y = mi_row * MI_SIZE;
+  for (plane = plane_from; plane <= plane_to; ++plane) {
+    const BLOCK_SIZE plane_bsize = get_plane_block_size(bsize,
+                                                        &xd->plane[plane]);
+    const int num_4x4_w = num_4x4_blocks_wide_lookup[plane_bsize];
+    const int num_4x4_h = num_4x4_blocks_high_lookup[plane_bsize];
+    const int bw = 4 * num_4x4_w;
+    const int bh = 4 * num_4x4_h;
+
+    if (xd->mi[0]->mbmi.sb_type < BLOCK_8X8) {
+      int i = 0, x, y;
+      assert(bsize == BLOCK_8X8);
+      for (y = 0; y < num_4x4_h; ++y)
+        for (x = 0; x < num_4x4_w; ++x)
+           build_inter_predictors(xd, plane, i++, bw, bh,
+                                  4 * x, 4 * y, 4, 4, mi_x, mi_y);
+    } else {
+      build_inter_predictors(xd, plane, 0, bw, bh,
+                             0, 0, bw, bh, mi_x, mi_y);
+    }
+  }
+}
+
+void vp9_build_inter_predictors_sby(MACROBLOCKD *xd, int mi_row, int mi_col,
+                                    BLOCK_SIZE bsize) {
+  build_inter_predictors_for_planes(xd, bsize, mi_row, mi_col, 0, 0);
+}
+
+void vp9_build_inter_predictors_sbp(MACROBLOCKD *xd, int mi_row, int mi_col,
+                                    BLOCK_SIZE bsize, int plane) {
+  build_inter_predictors_for_planes(xd, bsize, mi_row, mi_col, plane, plane);
+}
+
+void vp9_build_inter_predictors_sbuv(MACROBLOCKD *xd, int mi_row, int mi_col,
+                                     BLOCK_SIZE bsize) {
+  build_inter_predictors_for_planes(xd, bsize, mi_row, mi_col, 1,
+                                    MAX_MB_PLANE - 1);
+}
+
+void vp9_build_inter_predictors_sb(MACROBLOCKD *xd, int mi_row, int mi_col,
+                                   BLOCK_SIZE bsize) {
+  build_inter_predictors_for_planes(xd, bsize, mi_row, mi_col, 0,
+                                    MAX_MB_PLANE - 1);
+}
+
+void vp9_setup_dst_planes(struct macroblockd_plane planes[MAX_MB_PLANE],
+                          const YV12_BUFFER_CONFIG *src,
+                          int mi_row, int mi_col) {
+  uint8_t *const buffers[MAX_MB_PLANE] = { src->y_buffer, src->u_buffer,
+      src->v_buffer};
+  const int strides[MAX_MB_PLANE] = { src->y_stride, src->uv_stride,
+      src->uv_stride};
+  int i;
+
+  for (i = 0; i < MAX_MB_PLANE; ++i) {
+    struct macroblockd_plane *const pd = &planes[i];
+    setup_pred_plane(&pd->dst, buffers[i], strides[i], mi_row, mi_col, NULL,
+                     pd->subsampling_x, pd->subsampling_y);
+  }
+}
+
+void vp9_setup_pre_planes(MACROBLOCKD *xd, int idx,
+                          const YV12_BUFFER_CONFIG *src,
+                          int mi_row, int mi_col,
+                          const struct scale_factors *sf) {
+  if (src != NULL) {
+    int i;
+    uint8_t *const buffers[MAX_MB_PLANE] = { src->y_buffer, src->u_buffer,
+        src->v_buffer};
+    const int strides[MAX_MB_PLANE] = { src->y_stride, src->uv_stride,
+        src->uv_stride};
+    for (i = 0; i < MAX_MB_PLANE; ++i) {
+      struct macroblockd_plane *const pd = &xd->plane[i];
+      setup_pred_plane(&pd->pre[idx], buffers[i], strides[i], mi_row, mi_col,
+                       sf, pd->subsampling_x, pd->subsampling_y);
+    }
+  }
+}