ref: dbe2d8c33c289804f10e5fd0c76b10dabedc65a0
dir: /vp8/common/mbpitch.c/
/* * 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 "blockd.h" void vp8_setup_block_dptrs(MACROBLOCKD *x) { int r, c; for (r = 0; r < 4; r++) { for (c = 0; c < 4; c++) { x->block[r*4+c].predictor = x->predictor + r * 4 * 16 + c * 4; } } for (r = 0; r < 2; r++) { for (c = 0; c < 2; c++) { x->block[16+r*2+c].predictor = x->predictor + 256 + r * 4 * 8 + c * 4; } } for (r = 0; r < 2; r++) { for (c = 0; c < 2; c++) { x->block[20+r*2+c].predictor = x->predictor + 320 + r * 4 * 8 + c * 4; } } for (r = 0; r < 25; r++) { x->block[r].qcoeff = x->qcoeff + r * 16; x->block[r].dqcoeff = x->dqcoeff + r * 16; x->block[r].eob = x->eobs + r; } } void vp8_build_block_doffsets(MACROBLOCKD *x) { int block; for (block = 0; block < 16; block++) /* y blocks */ { x->block[block].offset = (block >> 2) * 4 * x->dst.y_stride + (block & 3) * 4; } for (block = 16; block < 20; block++) /* U and V blocks */ { x->block[block+4].offset = x->block[block].offset = ((block - 16) >> 1) * 4 * x->dst.uv_stride + (block & 1) * 4; } }