| /* |
| * 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 "./vpx_config.h" |
| |
| #include "vpx_mem/vpx_mem.h" |
| #include "vpx_ports/vpx_once.h" |
| |
| #include "./vp9_rtcd.h" |
| |
| #include "vp9/common/vp9_reconintra.h" |
| #include "vp9/common/vp9_onyxc_int.h" |
| |
| const TX_TYPE mode2txfm_map[INTRA_MODES] = { |
| DCT_DCT, // DC |
| ADST_DCT, // V |
| DCT_ADST, // H |
| DCT_DCT, // D45 |
| ADST_ADST, // D135 |
| ADST_DCT, // D117 |
| DCT_ADST, // D153 |
| DCT_ADST, // D207 |
| ADST_DCT, // D63 |
| ADST_ADST, // TM |
| }; |
| |
| #define intra_pred_sized(type, size) \ |
| void vp9_##type##_predictor_##size##x##size##_c(uint8_t *dst, \ |
| ptrdiff_t stride, \ |
| const uint8_t *above, \ |
| const uint8_t *left) { \ |
| type##_predictor(dst, stride, size, above, left); \ |
| } |
| |
| #define intra_pred_allsizes(type) \ |
| intra_pred_sized(type, 4) \ |
| intra_pred_sized(type, 8) \ |
| intra_pred_sized(type, 16) \ |
| intra_pred_sized(type, 32) |
| |
| static INLINE void d207_predictor(uint8_t *dst, ptrdiff_t stride, int bs, |
| const uint8_t *above, const uint8_t *left) { |
| int r, c; |
| |
| // first column |
| for (r = 0; r < bs - 1; ++r) |
| dst[r * stride] = ROUND_POWER_OF_TWO(left[r] + left[r + 1], 1); |
| dst[(bs - 1) * stride] = left[bs - 1]; |
| dst++; |
| |
| // second column |
| for (r = 0; r < bs - 2; ++r) |
| dst[r * stride] = ROUND_POWER_OF_TWO(left[r] + left[r + 1] * 2 + |
| left[r + 2], 2); |
| dst[(bs - 2) * stride] = ROUND_POWER_OF_TWO(left[bs - 2] + |
| left[bs - 1] * 3, 2); |
| dst[(bs - 1) * stride] = left[bs - 1]; |
| dst++; |
| |
| // rest of last row |
| for (c = 0; c < bs - 2; ++c) |
| dst[(bs - 1) * stride + c] = left[bs - 1]; |
| |
| for (r = bs - 2; r >= 0; --r) |
| for (c = 0; c < bs - 2; ++c) |
| dst[r * stride + c] = dst[(r + 1) * stride + c - 2]; |
| } |
| intra_pred_allsizes(d207) |
| |
| static INLINE void d63_predictor(uint8_t *dst, ptrdiff_t stride, int bs, |
| const uint8_t *above, const uint8_t *left) { |
| int r, c; |
| for (r = 0; r < bs; ++r) { |
| for (c = 0; c < bs; ++c) |
| dst[c] = r & 1 ? ROUND_POWER_OF_TWO(above[r/2 + c] + |
| above[r/2 + c + 1] * 2 + |
| above[r/2 + c + 2], 2) |
| : ROUND_POWER_OF_TWO(above[r/2 + c] + |
| above[r/2 + c + 1], 1); |
| dst += stride; |
| } |
| } |
| intra_pred_allsizes(d63) |
| |
| static INLINE void d45_predictor(uint8_t *dst, ptrdiff_t stride, int bs, |
| const uint8_t *above, const uint8_t *left) { |
| int r, c; |
| for (r = 0; r < bs; ++r) { |
| for (c = 0; c < bs; ++c) |
| dst[c] = r + c + 2 < bs * 2 ? ROUND_POWER_OF_TWO(above[r + c] + |
| above[r + c + 1] * 2 + |
| above[r + c + 2], 2) |
| : above[bs * 2 - 1]; |
| dst += stride; |
| } |
| } |
| intra_pred_allsizes(d45) |
| |
| static INLINE void d117_predictor(uint8_t *dst, ptrdiff_t stride, int bs, |
| const uint8_t *above, const uint8_t *left) { |
| int r, c; |
| |
| // first row |
| for (c = 0; c < bs; c++) |
| dst[c] = ROUND_POWER_OF_TWO(above[c - 1] + above[c], 1); |
| dst += stride; |
| |
| // second row |
| dst[0] = ROUND_POWER_OF_TWO(left[0] + above[-1] * 2 + above[0], 2); |
| for (c = 1; c < bs; c++) |
| dst[c] = ROUND_POWER_OF_TWO(above[c - 2] + above[c - 1] * 2 + above[c], 2); |
| dst += stride; |
| |
| // the rest of first col |
| dst[0] = ROUND_POWER_OF_TWO(above[-1] + left[0] * 2 + left[1], 2); |
| for (r = 3; r < bs; ++r) |
| dst[(r - 2) * stride] = ROUND_POWER_OF_TWO(left[r - 3] + left[r - 2] * 2 + |
| left[r - 1], 2); |
| |
| // the rest of the block |
| for (r = 2; r < bs; ++r) { |
| for (c = 1; c < bs; c++) |
| dst[c] = dst[-2 * stride + c - 1]; |
| dst += stride; |
| } |
| } |
| intra_pred_allsizes(d117) |
| |
| static INLINE void d135_predictor(uint8_t *dst, ptrdiff_t stride, int bs, |
| const uint8_t *above, const uint8_t *left) { |
| int r, c; |
| dst[0] = ROUND_POWER_OF_TWO(left[0] + above[-1] * 2 + above[0], 2); |
| for (c = 1; c < bs; c++) |
| dst[c] = ROUND_POWER_OF_TWO(above[c - 2] + above[c - 1] * 2 + above[c], 2); |
| |
| dst[stride] = ROUND_POWER_OF_TWO(above[-1] + left[0] * 2 + left[1], 2); |
| for (r = 2; r < bs; ++r) |
| dst[r * stride] = ROUND_POWER_OF_TWO(left[r - 2] + left[r - 1] * 2 + |
| left[r], 2); |
| |
| dst += stride; |
| for (r = 1; r < bs; ++r) { |
| for (c = 1; c < bs; c++) |
| dst[c] = dst[-stride + c - 1]; |
| dst += stride; |
| } |
| } |
| intra_pred_allsizes(d135) |
| |
| static INLINE void d153_predictor(uint8_t *dst, ptrdiff_t stride, int bs, |
| const uint8_t *above, const uint8_t *left) { |
| int r, c; |
| dst[0] = ROUND_POWER_OF_TWO(above[-1] + left[0], 1); |
| for (r = 1; r < bs; r++) |
| dst[r * stride] = ROUND_POWER_OF_TWO(left[r - 1] + left[r], 1); |
| dst++; |
| |
| dst[0] = ROUND_POWER_OF_TWO(left[0] + above[-1] * 2 + above[0], 2); |
| dst[stride] = ROUND_POWER_OF_TWO(above[-1] + left[0] * 2 + left[1], 2); |
| for (r = 2; r < bs; r++) |
| dst[r * stride] = ROUND_POWER_OF_TWO(left[r - 2] + left[r - 1] * 2 + |
| left[r], 2); |
| dst++; |
| |
| for (c = 0; c < bs - 2; c++) |
| dst[c] = ROUND_POWER_OF_TWO(above[c - 1] + above[c] * 2 + above[c + 1], 2); |
| dst += stride; |
| |
| for (r = 1; r < bs; ++r) { |
| for (c = 0; c < bs - 2; c++) |
| dst[c] = dst[-stride + c - 2]; |
| dst += stride; |
| } |
| } |
| intra_pred_allsizes(d153) |
| |
| static INLINE void v_predictor(uint8_t *dst, ptrdiff_t stride, int bs, |
| const uint8_t *above, const uint8_t *left) { |
| int r; |
| |
| for (r = 0; r < bs; r++) { |
| vpx_memcpy(dst, above, bs); |
| dst += stride; |
| } |
| } |
| intra_pred_allsizes(v) |
| |
| static INLINE void h_predictor(uint8_t *dst, ptrdiff_t stride, int bs, |
| const uint8_t *above, const uint8_t *left) { |
| int r; |
| |
| for (r = 0; r < bs; r++) { |
| vpx_memset(dst, left[r], bs); |
| dst += stride; |
| } |
| } |
| intra_pred_allsizes(h) |
| |
| static INLINE void tm_predictor(uint8_t *dst, ptrdiff_t stride, int bs, |
| const uint8_t *above, const uint8_t *left) { |
| int r, c; |
| int ytop_left = above[-1]; |
| |
| for (r = 0; r < bs; r++) { |
| for (c = 0; c < bs; c++) |
| dst[c] = clip_pixel(left[r] + above[c] - ytop_left); |
| dst += stride; |
| } |
| } |
| intra_pred_allsizes(tm) |
| |
| static INLINE void dc_128_predictor(uint8_t *dst, ptrdiff_t stride, int bs, |
| const uint8_t *above, const uint8_t *left) { |
| int r; |
| |
| for (r = 0; r < bs; r++) { |
| vpx_memset(dst, 128, bs); |
| dst += stride; |
| } |
| } |
| intra_pred_allsizes(dc_128) |
| |
| static INLINE void dc_left_predictor(uint8_t *dst, ptrdiff_t stride, int bs, |
| const uint8_t *above, |
| const uint8_t *left) { |
| int i, r, expected_dc, sum = 0; |
| |
| for (i = 0; i < bs; i++) |
| sum += left[i]; |
| expected_dc = (sum + (bs >> 1)) / bs; |
| |
| for (r = 0; r < bs; r++) { |
| vpx_memset(dst, expected_dc, bs); |
| dst += stride; |
| } |
| } |
| intra_pred_allsizes(dc_left) |
| |
| static INLINE void dc_top_predictor(uint8_t *dst, ptrdiff_t stride, int bs, |
| const uint8_t *above, const uint8_t *left) { |
| int i, r, expected_dc, sum = 0; |
| |
| for (i = 0; i < bs; i++) |
| sum += above[i]; |
| expected_dc = (sum + (bs >> 1)) / bs; |
| |
| for (r = 0; r < bs; r++) { |
| vpx_memset(dst, expected_dc, bs); |
| dst += stride; |
| } |
| } |
| intra_pred_allsizes(dc_top) |
| |
| static INLINE void dc_predictor(uint8_t *dst, ptrdiff_t stride, int bs, |
| const uint8_t *above, const uint8_t *left) { |
| int i, r, expected_dc, sum = 0; |
| const int count = 2 * bs; |
| |
| for (i = 0; i < bs; i++) { |
| sum += above[i]; |
| sum += left[i]; |
| } |
| |
| expected_dc = (sum + (count >> 1)) / count; |
| |
| for (r = 0; r < bs; r++) { |
| vpx_memset(dst, expected_dc, bs); |
| dst += stride; |
| } |
| } |
| intra_pred_allsizes(dc) |
| #undef intra_pred_allsizes |
| |
| typedef void (*intra_pred_fn)(uint8_t *dst, ptrdiff_t stride, |
| const uint8_t *above, const uint8_t *left); |
| |
| static intra_pred_fn pred[INTRA_MODES][4]; |
| static intra_pred_fn dc_pred[2][2][4]; |
| |
| static void init_intra_pred_fn_ptrs(void) { |
| #define intra_pred_allsizes(l, type) \ |
| l[0] = vp9_##type##_predictor_4x4; \ |
| l[1] = vp9_##type##_predictor_8x8; \ |
| l[2] = vp9_##type##_predictor_16x16; \ |
| l[3] = vp9_##type##_predictor_32x32 |
| |
| intra_pred_allsizes(pred[V_PRED], v); |
| intra_pred_allsizes(pred[H_PRED], h); |
| intra_pred_allsizes(pred[D207_PRED], d207); |
| intra_pred_allsizes(pred[D45_PRED], d45); |
| intra_pred_allsizes(pred[D63_PRED], d63); |
| intra_pred_allsizes(pred[D117_PRED], d117); |
| intra_pred_allsizes(pred[D135_PRED], d135); |
| intra_pred_allsizes(pred[D153_PRED], d153); |
| intra_pred_allsizes(pred[TM_PRED], tm); |
| |
| intra_pred_allsizes(dc_pred[0][0], dc_128); |
| intra_pred_allsizes(dc_pred[0][1], dc_top); |
| intra_pred_allsizes(dc_pred[1][0], dc_left); |
| intra_pred_allsizes(dc_pred[1][1], dc); |
| |
| #undef intra_pred_allsizes |
| } |
| |
| static void build_intra_predictors(const MACROBLOCKD *xd, const uint8_t *ref, |
| int ref_stride, uint8_t *dst, int dst_stride, |
| MB_PREDICTION_MODE mode, TX_SIZE tx_size, |
| int up_available, int left_available, |
| int right_available, int x, int y, |
| int plane) { |
| int i; |
| DECLARE_ALIGNED_ARRAY(16, uint8_t, left_col, 64); |
| DECLARE_ALIGNED_ARRAY(16, uint8_t, above_data, 128 + 16); |
| uint8_t *above_row = above_data + 16; |
| const uint8_t *const_above_row = above_row; |
| const int bs = 4 << tx_size; |
| int frame_width, frame_height; |
| int x0, y0; |
| const struct macroblockd_plane *const pd = &xd->plane[plane]; |
| |
| // 127 127 127 .. 127 127 127 127 127 127 |
| // 129 A B .. Y Z |
| // 129 C D .. W X |
| // 129 E F .. U V |
| // 129 G H .. S T T T T T |
| // .. |
| |
| once(init_intra_pred_fn_ptrs); |
| |
| // Get current frame pointer, width and height. |
| if (plane == 0) { |
| frame_width = xd->cur_buf->y_width; |
| frame_height = xd->cur_buf->y_height; |
| } else { |
| frame_width = xd->cur_buf->uv_width; |
| frame_height = xd->cur_buf->uv_height; |
| } |
| |
| // Get block position in current frame. |
| x0 = (-xd->mb_to_left_edge >> (3 + pd->subsampling_x)) + x; |
| y0 = (-xd->mb_to_top_edge >> (3 + pd->subsampling_y)) + y; |
| |
| // left |
| if (left_available) { |
| if (xd->mb_to_bottom_edge < 0) { |
| /* slower path if the block needs border extension */ |
| if (y0 + bs <= frame_height) { |
| for (i = 0; i < bs; ++i) |
| left_col[i] = ref[i * ref_stride - 1]; |
| } else { |
| const int extend_bottom = frame_height - y0; |
| for (i = 0; i < extend_bottom; ++i) |
| left_col[i] = ref[i * ref_stride - 1]; |
| for (; i < bs; ++i) |
| left_col[i] = ref[(extend_bottom - 1) * ref_stride - 1]; |
| } |
| } else { |
| /* faster path if the block does not need extension */ |
| for (i = 0; i < bs; ++i) |
| left_col[i] = ref[i * ref_stride - 1]; |
| } |
| } else { |
| vpx_memset(left_col, 129, bs); |
| } |
| |
| // TODO(hkuang) do not extend 2*bs pixels for all modes. |
| // above |
| if (up_available) { |
| const uint8_t *above_ref = ref - ref_stride; |
| if (xd->mb_to_right_edge < 0) { |
| /* slower path if the block needs border extension */ |
| if (x0 + 2 * bs <= frame_width) { |
| if (right_available && bs == 4) { |
| vpx_memcpy(above_row, above_ref, 2 * bs); |
| } else { |
| vpx_memcpy(above_row, above_ref, bs); |
| vpx_memset(above_row + bs, above_row[bs - 1], bs); |
| } |
| } else if (x0 + bs <= frame_width) { |
| const int r = frame_width - x0; |
| if (right_available && bs == 4) { |
| vpx_memcpy(above_row, above_ref, r); |
| vpx_memset(above_row + r, above_row[r - 1], |
| x0 + 2 * bs - frame_width); |
| } else { |
| vpx_memcpy(above_row, above_ref, bs); |
| vpx_memset(above_row + bs, above_row[bs - 1], bs); |
| } |
| } else if (x0 <= frame_width) { |
| const int r = frame_width - x0; |
| if (right_available && bs == 4) { |
| vpx_memcpy(above_row, above_ref, r); |
| vpx_memset(above_row + r, above_row[r - 1], |
| x0 + 2 * bs - frame_width); |
| } else { |
| vpx_memcpy(above_row, above_ref, r); |
| vpx_memset(above_row + r, above_row[r - 1], |
| x0 + 2 * bs - frame_width); |
| } |
| } |
| above_row[-1] = left_available ? above_ref[-1] : 129; |
| } else { |
| /* faster path if the block does not need extension */ |
| if (bs == 4 && right_available && left_available) { |
| const_above_row = above_ref; |
| } else { |
| vpx_memcpy(above_row, above_ref, bs); |
| if (bs == 4 && right_available) |
| vpx_memcpy(above_row + bs, above_ref + bs, bs); |
| else |
| vpx_memset(above_row + bs, above_row[bs - 1], bs); |
| above_row[-1] = left_available ? above_ref[-1] : 129; |
| } |
| } |
| } else { |
| vpx_memset(above_row, 127, bs * 2); |
| above_row[-1] = 127; |
| } |
| |
| // predict |
| if (mode == DC_PRED) { |
| dc_pred[left_available][up_available][tx_size](dst, dst_stride, |
| const_above_row, left_col); |
| } else { |
| pred[mode][tx_size](dst, dst_stride, const_above_row, left_col); |
| } |
| } |
| |
| void vp9_predict_intra_block(const MACROBLOCKD *xd, int block_idx, int bwl_in, |
| TX_SIZE tx_size, int mode, |
| const uint8_t *ref, int ref_stride, |
| uint8_t *dst, int dst_stride, |
| int aoff, int loff, int plane) { |
| const int bwl = bwl_in - tx_size; |
| const int wmask = (1 << bwl) - 1; |
| const int have_top = (block_idx >> bwl) || xd->up_available; |
| const int have_left = (block_idx & wmask) || xd->left_available; |
| const int have_right = ((block_idx & wmask) != wmask); |
| const int x = aoff * 4; |
| const int y = loff * 4; |
| |
| assert(bwl >= 0); |
| build_intra_predictors(xd, ref, ref_stride, dst, dst_stride, mode, tx_size, |
| have_top, have_left, have_right, x, y, plane); |
| } |
