diff -r 000000000000 -r 6474c204b198 media/libvpx/vp9/common/vp9_reconintra.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/media/libvpx/vp9/common/vp9_reconintra.c Wed Dec 31 06:09:35 2014 +0100 @@ -0,0 +1,385 @@ +/* + * 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[MB_MODE_COUNT] = { + 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 + DCT_DCT, // NEARESTMV + DCT_DCT, // NEARMV + DCT_DCT, // ZEROMV + DCT_DCT // NEWMV +}; + +#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 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 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; + + // 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); + + // left + if (left_available) { + for (i = 0; i < bs; i++) + left_col[i] = ref[i * ref_stride - 1]; + } else { + vpx_memset(left_col, 129, bs); + } + + // above + if (up_available) { + const uint8_t *above_ref = ref - ref_stride; + 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) { + 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); + + assert(bwl >= 0); + build_intra_predictors(ref, ref_stride, dst, dst_stride, mode, tx_size, + have_top, have_left, have_right); +}