diff options
Diffstat (limited to 'media/libvpx/libvpx/vp8/common/reconinter.c')
-rw-r--r-- | media/libvpx/libvpx/vp8/common/reconinter.c | 503 |
1 files changed, 503 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/vp8/common/reconinter.c b/media/libvpx/libvpx/vp8/common/reconinter.c new file mode 100644 index 0000000000..2cb0709318 --- /dev/null +++ b/media/libvpx/libvpx/vp8/common/reconinter.c @@ -0,0 +1,503 @@ +/* + * 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 <limits.h> +#include <string.h> + +#include "vpx_config.h" +#include "vp8_rtcd.h" +#include "vpx/vpx_integer.h" +#include "blockd.h" +#include "reconinter.h" +#if CONFIG_RUNTIME_CPU_DETECT +#include "onyxc_int.h" +#endif + +void vp8_copy_mem16x16_c(unsigned char *src, int src_stride, unsigned char *dst, + int dst_stride) { + int r; + + for (r = 0; r < 16; ++r) { + memcpy(dst, src, 16); + + src += src_stride; + dst += dst_stride; + } +} + +void vp8_copy_mem8x8_c(unsigned char *src, int src_stride, unsigned char *dst, + int dst_stride) { + int r; + + for (r = 0; r < 8; ++r) { + memcpy(dst, src, 8); + + src += src_stride; + dst += dst_stride; + } +} + +void vp8_copy_mem8x4_c(unsigned char *src, int src_stride, unsigned char *dst, + int dst_stride) { + int r; + + for (r = 0; r < 4; ++r) { + memcpy(dst, src, 8); + + src += src_stride; + dst += dst_stride; + } +} + +void vp8_build_inter_predictors_b(BLOCKD *d, int pitch, unsigned char *base_pre, + int pre_stride, vp8_subpix_fn_t sppf) { + int r; + unsigned char *pred_ptr = d->predictor; + unsigned char *ptr; + ptr = base_pre + d->offset + (d->bmi.mv.as_mv.row >> 3) * pre_stride + + (d->bmi.mv.as_mv.col >> 3); + + if (d->bmi.mv.as_mv.row & 7 || d->bmi.mv.as_mv.col & 7) { + sppf(ptr, pre_stride, d->bmi.mv.as_mv.col & 7, d->bmi.mv.as_mv.row & 7, + pred_ptr, pitch); + } else { + for (r = 0; r < 4; ++r) { + pred_ptr[0] = ptr[0]; + pred_ptr[1] = ptr[1]; + pred_ptr[2] = ptr[2]; + pred_ptr[3] = ptr[3]; + pred_ptr += pitch; + ptr += pre_stride; + } + } +} + +static void build_inter_predictors4b(MACROBLOCKD *x, BLOCKD *d, + unsigned char *dst, int dst_stride, + unsigned char *base_pre, int pre_stride) { + unsigned char *ptr; + ptr = base_pre + d->offset + (d->bmi.mv.as_mv.row >> 3) * pre_stride + + (d->bmi.mv.as_mv.col >> 3); + + if (d->bmi.mv.as_mv.row & 7 || d->bmi.mv.as_mv.col & 7) { + x->subpixel_predict8x8(ptr, pre_stride, d->bmi.mv.as_mv.col & 7, + d->bmi.mv.as_mv.row & 7, dst, dst_stride); + } else { + vp8_copy_mem8x8(ptr, pre_stride, dst, dst_stride); + } +} + +static void build_inter_predictors2b(MACROBLOCKD *x, BLOCKD *d, + unsigned char *dst, int dst_stride, + unsigned char *base_pre, int pre_stride) { + unsigned char *ptr; + ptr = base_pre + d->offset + (d->bmi.mv.as_mv.row >> 3) * pre_stride + + (d->bmi.mv.as_mv.col >> 3); + + if (d->bmi.mv.as_mv.row & 7 || d->bmi.mv.as_mv.col & 7) { + x->subpixel_predict8x4(ptr, pre_stride, d->bmi.mv.as_mv.col & 7, + d->bmi.mv.as_mv.row & 7, dst, dst_stride); + } else { + vp8_copy_mem8x4(ptr, pre_stride, dst, dst_stride); + } +} + +static void build_inter_predictors_b(BLOCKD *d, unsigned char *dst, + int dst_stride, unsigned char *base_pre, + int pre_stride, vp8_subpix_fn_t sppf) { + int r; + unsigned char *ptr; + ptr = base_pre + d->offset + (d->bmi.mv.as_mv.row >> 3) * pre_stride + + (d->bmi.mv.as_mv.col >> 3); + + if (d->bmi.mv.as_mv.row & 7 || d->bmi.mv.as_mv.col & 7) { + sppf(ptr, pre_stride, d->bmi.mv.as_mv.col & 7, d->bmi.mv.as_mv.row & 7, dst, + dst_stride); + } else { + for (r = 0; r < 4; ++r) { + dst[0] = ptr[0]; + dst[1] = ptr[1]; + dst[2] = ptr[2]; + dst[3] = ptr[3]; + dst += dst_stride; + ptr += pre_stride; + } + } +} + +/*encoder only*/ +void vp8_build_inter16x16_predictors_mbuv(MACROBLOCKD *x) { + unsigned char *uptr, *vptr; + unsigned char *upred_ptr = &x->predictor[256]; + unsigned char *vpred_ptr = &x->predictor[320]; + + int mv_row = x->mode_info_context->mbmi.mv.as_mv.row; + int mv_col = x->mode_info_context->mbmi.mv.as_mv.col; + int offset; + int pre_stride = x->pre.uv_stride; + + /* calc uv motion vectors */ + mv_row += 1 | (mv_row >> (sizeof(int) * CHAR_BIT - 1)); + mv_col += 1 | (mv_col >> (sizeof(int) * CHAR_BIT - 1)); + mv_row /= 2; + mv_col /= 2; + mv_row &= x->fullpixel_mask; + mv_col &= x->fullpixel_mask; + + offset = (mv_row >> 3) * pre_stride + (mv_col >> 3); + uptr = x->pre.u_buffer + offset; + vptr = x->pre.v_buffer + offset; + + if ((mv_row | mv_col) & 7) { + x->subpixel_predict8x8(uptr, pre_stride, mv_col & 7, mv_row & 7, upred_ptr, + 8); + x->subpixel_predict8x8(vptr, pre_stride, mv_col & 7, mv_row & 7, vpred_ptr, + 8); + } else { + vp8_copy_mem8x8(uptr, pre_stride, upred_ptr, 8); + vp8_copy_mem8x8(vptr, pre_stride, vpred_ptr, 8); + } +} + +/*encoder only*/ +void vp8_build_inter4x4_predictors_mbuv(MACROBLOCKD *x) { + int i, j; + int pre_stride = x->pre.uv_stride; + unsigned char *base_pre; + + /* build uv mvs */ + for (i = 0; i < 2; ++i) { + for (j = 0; j < 2; ++j) { + int yoffset = i * 8 + j * 2; + int uoffset = 16 + i * 2 + j; + int voffset = 20 + i * 2 + j; + + int temp; + + temp = x->block[yoffset].bmi.mv.as_mv.row + + x->block[yoffset + 1].bmi.mv.as_mv.row + + x->block[yoffset + 4].bmi.mv.as_mv.row + + x->block[yoffset + 5].bmi.mv.as_mv.row; + + temp += 4 + ((temp >> (sizeof(temp) * CHAR_BIT - 1)) * 8); + + x->block[uoffset].bmi.mv.as_mv.row = (temp / 8) & x->fullpixel_mask; + + temp = x->block[yoffset].bmi.mv.as_mv.col + + x->block[yoffset + 1].bmi.mv.as_mv.col + + x->block[yoffset + 4].bmi.mv.as_mv.col + + x->block[yoffset + 5].bmi.mv.as_mv.col; + + temp += 4 + ((temp >> (sizeof(temp) * CHAR_BIT - 1)) * 8); + + x->block[uoffset].bmi.mv.as_mv.col = (temp / 8) & x->fullpixel_mask; + + x->block[voffset].bmi.mv.as_int = x->block[uoffset].bmi.mv.as_int; + } + } + + base_pre = x->pre.u_buffer; + for (i = 16; i < 20; i += 2) { + BLOCKD *d0 = &x->block[i]; + BLOCKD *d1 = &x->block[i + 1]; + + if (d0->bmi.mv.as_int == d1->bmi.mv.as_int) { + build_inter_predictors2b(x, d0, d0->predictor, 8, base_pre, pre_stride); + } else { + vp8_build_inter_predictors_b(d0, 8, base_pre, pre_stride, + x->subpixel_predict); + vp8_build_inter_predictors_b(d1, 8, base_pre, pre_stride, + x->subpixel_predict); + } + } + + base_pre = x->pre.v_buffer; + for (i = 20; i < 24; i += 2) { + BLOCKD *d0 = &x->block[i]; + BLOCKD *d1 = &x->block[i + 1]; + + if (d0->bmi.mv.as_int == d1->bmi.mv.as_int) { + build_inter_predictors2b(x, d0, d0->predictor, 8, base_pre, pre_stride); + } else { + vp8_build_inter_predictors_b(d0, 8, base_pre, pre_stride, + x->subpixel_predict); + vp8_build_inter_predictors_b(d1, 8, base_pre, pre_stride, + x->subpixel_predict); + } + } +} + +/*encoder only*/ +void vp8_build_inter16x16_predictors_mby(MACROBLOCKD *x, unsigned char *dst_y, + int dst_ystride) { + unsigned char *ptr_base; + unsigned char *ptr; + int mv_row = x->mode_info_context->mbmi.mv.as_mv.row; + int mv_col = x->mode_info_context->mbmi.mv.as_mv.col; + int pre_stride = x->pre.y_stride; + + ptr_base = x->pre.y_buffer; + ptr = ptr_base + (mv_row >> 3) * pre_stride + (mv_col >> 3); + + if ((mv_row | mv_col) & 7) { + x->subpixel_predict16x16(ptr, pre_stride, mv_col & 7, mv_row & 7, dst_y, + dst_ystride); + } else { + vp8_copy_mem16x16(ptr, pre_stride, dst_y, dst_ystride); + } +} + +static void clamp_mv_to_umv_border(MV *mv, const MACROBLOCKD *xd) { + /* 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. + * + * This limit kicks in at 19 pixels for the top and left edges, for + * the 16 pixels plus 3 taps right of the central pixel when subpel + * filtering. The bottom and right edges use 16 pixels plus 2 pixels + * left of the central pixel when filtering. + */ + if (mv->col < (xd->mb_to_left_edge - (19 << 3))) { + mv->col = xd->mb_to_left_edge - (16 << 3); + } else if (mv->col > xd->mb_to_right_edge + (18 << 3)) { + mv->col = xd->mb_to_right_edge + (16 << 3); + } + + if (mv->row < (xd->mb_to_top_edge - (19 << 3))) { + mv->row = xd->mb_to_top_edge - (16 << 3); + } else if (mv->row > xd->mb_to_bottom_edge + (18 << 3)) { + mv->row = xd->mb_to_bottom_edge + (16 << 3); + } +} + +/* A version of the above function for chroma block MVs.*/ +static void clamp_uvmv_to_umv_border(MV *mv, const MACROBLOCKD *xd) { + mv->col = (2 * mv->col < (xd->mb_to_left_edge - (19 << 3))) + ? (xd->mb_to_left_edge - (16 << 3)) >> 1 + : mv->col; + mv->col = (2 * mv->col > xd->mb_to_right_edge + (18 << 3)) + ? (xd->mb_to_right_edge + (16 << 3)) >> 1 + : mv->col; + + mv->row = (2 * mv->row < (xd->mb_to_top_edge - (19 << 3))) + ? (xd->mb_to_top_edge - (16 << 3)) >> 1 + : mv->row; + mv->row = (2 * mv->row > xd->mb_to_bottom_edge + (18 << 3)) + ? (xd->mb_to_bottom_edge + (16 << 3)) >> 1 + : mv->row; +} + +void vp8_build_inter16x16_predictors_mb(MACROBLOCKD *x, unsigned char *dst_y, + unsigned char *dst_u, + unsigned char *dst_v, int dst_ystride, + int dst_uvstride) { + int offset; + unsigned char *ptr; + unsigned char *uptr, *vptr; + + int_mv _16x16mv; + + unsigned char *ptr_base = x->pre.y_buffer; + int pre_stride = x->pre.y_stride; + + _16x16mv.as_int = x->mode_info_context->mbmi.mv.as_int; + + if (x->mode_info_context->mbmi.need_to_clamp_mvs) { + clamp_mv_to_umv_border(&_16x16mv.as_mv, x); + } + + ptr = ptr_base + (_16x16mv.as_mv.row >> 3) * pre_stride + + (_16x16mv.as_mv.col >> 3); + + if (_16x16mv.as_int & 0x00070007) { + x->subpixel_predict16x16(ptr, pre_stride, _16x16mv.as_mv.col & 7, + _16x16mv.as_mv.row & 7, dst_y, dst_ystride); + } else { + vp8_copy_mem16x16(ptr, pre_stride, dst_y, dst_ystride); + } + + /* calc uv motion vectors */ + _16x16mv.as_mv.row += + 1 | (_16x16mv.as_mv.row >> (sizeof(int) * CHAR_BIT - 1)); + _16x16mv.as_mv.col += + 1 | (_16x16mv.as_mv.col >> (sizeof(int) * CHAR_BIT - 1)); + _16x16mv.as_mv.row /= 2; + _16x16mv.as_mv.col /= 2; + _16x16mv.as_mv.row &= x->fullpixel_mask; + _16x16mv.as_mv.col &= x->fullpixel_mask; + + if (2 * _16x16mv.as_mv.col < (x->mb_to_left_edge - (19 << 3)) || + 2 * _16x16mv.as_mv.col > x->mb_to_right_edge + (18 << 3) || + 2 * _16x16mv.as_mv.row < (x->mb_to_top_edge - (19 << 3)) || + 2 * _16x16mv.as_mv.row > x->mb_to_bottom_edge + (18 << 3)) { + return; + } + + pre_stride >>= 1; + offset = (_16x16mv.as_mv.row >> 3) * pre_stride + (_16x16mv.as_mv.col >> 3); + uptr = x->pre.u_buffer + offset; + vptr = x->pre.v_buffer + offset; + + if (_16x16mv.as_int & 0x00070007) { + x->subpixel_predict8x8(uptr, pre_stride, _16x16mv.as_mv.col & 7, + _16x16mv.as_mv.row & 7, dst_u, dst_uvstride); + x->subpixel_predict8x8(vptr, pre_stride, _16x16mv.as_mv.col & 7, + _16x16mv.as_mv.row & 7, dst_v, dst_uvstride); + } else { + vp8_copy_mem8x8(uptr, pre_stride, dst_u, dst_uvstride); + vp8_copy_mem8x8(vptr, pre_stride, dst_v, dst_uvstride); + } +} + +static void build_inter4x4_predictors_mb(MACROBLOCKD *x) { + int i; + unsigned char *base_dst = x->dst.y_buffer; + unsigned char *base_pre = x->pre.y_buffer; + + if (x->mode_info_context->mbmi.partitioning < 3) { + BLOCKD *b; + int dst_stride = x->dst.y_stride; + + x->block[0].bmi = x->mode_info_context->bmi[0]; + x->block[2].bmi = x->mode_info_context->bmi[2]; + x->block[8].bmi = x->mode_info_context->bmi[8]; + x->block[10].bmi = x->mode_info_context->bmi[10]; + if (x->mode_info_context->mbmi.need_to_clamp_mvs) { + clamp_mv_to_umv_border(&x->block[0].bmi.mv.as_mv, x); + clamp_mv_to_umv_border(&x->block[2].bmi.mv.as_mv, x); + clamp_mv_to_umv_border(&x->block[8].bmi.mv.as_mv, x); + clamp_mv_to_umv_border(&x->block[10].bmi.mv.as_mv, x); + } + + b = &x->block[0]; + build_inter_predictors4b(x, b, base_dst + b->offset, dst_stride, base_pre, + dst_stride); + b = &x->block[2]; + build_inter_predictors4b(x, b, base_dst + b->offset, dst_stride, base_pre, + dst_stride); + b = &x->block[8]; + build_inter_predictors4b(x, b, base_dst + b->offset, dst_stride, base_pre, + dst_stride); + b = &x->block[10]; + build_inter_predictors4b(x, b, base_dst + b->offset, dst_stride, base_pre, + dst_stride); + } else { + for (i = 0; i < 16; i += 2) { + BLOCKD *d0 = &x->block[i]; + BLOCKD *d1 = &x->block[i + 1]; + int dst_stride = x->dst.y_stride; + + x->block[i + 0].bmi = x->mode_info_context->bmi[i + 0]; + x->block[i + 1].bmi = x->mode_info_context->bmi[i + 1]; + if (x->mode_info_context->mbmi.need_to_clamp_mvs) { + clamp_mv_to_umv_border(&x->block[i + 0].bmi.mv.as_mv, x); + clamp_mv_to_umv_border(&x->block[i + 1].bmi.mv.as_mv, x); + } + + if (d0->bmi.mv.as_int == d1->bmi.mv.as_int) { + build_inter_predictors2b(x, d0, base_dst + d0->offset, dst_stride, + base_pre, dst_stride); + } else { + build_inter_predictors_b(d0, base_dst + d0->offset, dst_stride, + base_pre, dst_stride, x->subpixel_predict); + build_inter_predictors_b(d1, base_dst + d1->offset, dst_stride, + base_pre, dst_stride, x->subpixel_predict); + } + } + } + base_dst = x->dst.u_buffer; + base_pre = x->pre.u_buffer; + for (i = 16; i < 20; i += 2) { + BLOCKD *d0 = &x->block[i]; + BLOCKD *d1 = &x->block[i + 1]; + int dst_stride = x->dst.uv_stride; + + /* Note: uv mvs already clamped in build_4x4uvmvs() */ + + if (d0->bmi.mv.as_int == d1->bmi.mv.as_int) { + build_inter_predictors2b(x, d0, base_dst + d0->offset, dst_stride, + base_pre, dst_stride); + } else { + build_inter_predictors_b(d0, base_dst + d0->offset, dst_stride, base_pre, + dst_stride, x->subpixel_predict); + build_inter_predictors_b(d1, base_dst + d1->offset, dst_stride, base_pre, + dst_stride, x->subpixel_predict); + } + } + + base_dst = x->dst.v_buffer; + base_pre = x->pre.v_buffer; + for (i = 20; i < 24; i += 2) { + BLOCKD *d0 = &x->block[i]; + BLOCKD *d1 = &x->block[i + 1]; + int dst_stride = x->dst.uv_stride; + + /* Note: uv mvs already clamped in build_4x4uvmvs() */ + + if (d0->bmi.mv.as_int == d1->bmi.mv.as_int) { + build_inter_predictors2b(x, d0, base_dst + d0->offset, dst_stride, + base_pre, dst_stride); + } else { + build_inter_predictors_b(d0, base_dst + d0->offset, dst_stride, base_pre, + dst_stride, x->subpixel_predict); + build_inter_predictors_b(d1, base_dst + d1->offset, dst_stride, base_pre, + dst_stride, x->subpixel_predict); + } + } +} + +static void build_4x4uvmvs(MACROBLOCKD *x) { + int i, j; + + for (i = 0; i < 2; ++i) { + for (j = 0; j < 2; ++j) { + int yoffset = i * 8 + j * 2; + int uoffset = 16 + i * 2 + j; + int voffset = 20 + i * 2 + j; + + int temp; + + temp = x->mode_info_context->bmi[yoffset + 0].mv.as_mv.row + + x->mode_info_context->bmi[yoffset + 1].mv.as_mv.row + + x->mode_info_context->bmi[yoffset + 4].mv.as_mv.row + + x->mode_info_context->bmi[yoffset + 5].mv.as_mv.row; + + temp += 4 + ((temp >> (sizeof(temp) * CHAR_BIT - 1)) * 8); + + x->block[uoffset].bmi.mv.as_mv.row = (temp / 8) & x->fullpixel_mask; + + temp = x->mode_info_context->bmi[yoffset + 0].mv.as_mv.col + + x->mode_info_context->bmi[yoffset + 1].mv.as_mv.col + + x->mode_info_context->bmi[yoffset + 4].mv.as_mv.col + + x->mode_info_context->bmi[yoffset + 5].mv.as_mv.col; + + temp += 4 + ((temp >> (sizeof(temp) * CHAR_BIT - 1)) * 8); + + x->block[uoffset].bmi.mv.as_mv.col = (temp / 8) & x->fullpixel_mask; + + if (x->mode_info_context->mbmi.need_to_clamp_mvs) { + clamp_uvmv_to_umv_border(&x->block[uoffset].bmi.mv.as_mv, x); + } + + x->block[voffset].bmi.mv.as_int = x->block[uoffset].bmi.mv.as_int; + } + } +} + +void vp8_build_inter_predictors_mb(MACROBLOCKD *xd) { + if (xd->mode_info_context->mbmi.mode != SPLITMV) { + vp8_build_inter16x16_predictors_mb(xd, xd->dst.y_buffer, xd->dst.u_buffer, + xd->dst.v_buffer, xd->dst.y_stride, + xd->dst.uv_stride); + } else { + build_4x4uvmvs(xd); + build_inter4x4_predictors_mb(xd); + } +} |