190d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber/* 2f71323e297a928af368937089d3ed71239786f86Andreas Huber * Copyright (c) 2010 The WebM project authors. All Rights Reserved. 390d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber * 4f71323e297a928af368937089d3ed71239786f86Andreas Huber * Use of this source code is governed by a BSD-style license 5f71323e297a928af368937089d3ed71239786f86Andreas Huber * that can be found in the LICENSE file in the root of the source 6f71323e297a928af368937089d3ed71239786f86Andreas Huber * tree. An additional intellectual property rights grant can be found 7f71323e297a928af368937089d3ed71239786f86Andreas Huber * in the file PATENTS. All contributing project authors may 8f71323e297a928af368937089d3ed71239786f86Andreas Huber * be found in the AUTHORS file in the root of the source tree. 990d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber */ 1090d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 1190d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 1290d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber#include "extend.h" 1390d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber#include "vpx_mem/vpx_mem.h" 1490d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 1590d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 1690d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huberstatic void extend_plane_borders 1790d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber( 18538f6170b788de7408b06efc6613dc98579aa6a6Andreas Huber unsigned char *s, /* source */ 19538f6170b788de7408b06efc6613dc98579aa6a6Andreas Huber int sp, /* pitch */ 20538f6170b788de7408b06efc6613dc98579aa6a6Andreas Huber int h, /* height */ 21538f6170b788de7408b06efc6613dc98579aa6a6Andreas Huber int w, /* width */ 22538f6170b788de7408b06efc6613dc98579aa6a6Andreas Huber int et, /* extend top border */ 23538f6170b788de7408b06efc6613dc98579aa6a6Andreas Huber int el, /* extend left border */ 24538f6170b788de7408b06efc6613dc98579aa6a6Andreas Huber int eb, /* extend bottom border */ 25538f6170b788de7408b06efc6613dc98579aa6a6Andreas Huber int er /* extend right border */ 2690d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber) 2790d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber{ 2890d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 2990d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber int i; 3090d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber unsigned char *src_ptr1, *src_ptr2; 3190d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber unsigned char *dest_ptr1, *dest_ptr2; 3290d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber int linesize; 3390d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 34538f6170b788de7408b06efc6613dc98579aa6a6Andreas Huber /* copy the left and right most columns out */ 3590d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber src_ptr1 = s; 3690d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber src_ptr2 = s + w - 1; 3790d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber dest_ptr1 = s - el; 3890d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber dest_ptr2 = s + w; 3990d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 4090d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber for (i = 0; i < h - 0 + 1; i++) 4190d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber { 42538f6170b788de7408b06efc6613dc98579aa6a6Andreas Huber /* Some linkers will complain if we call vpx_memset with el set to a 43538f6170b788de7408b06efc6613dc98579aa6a6Andreas Huber * constant 0. 44538f6170b788de7408b06efc6613dc98579aa6a6Andreas Huber */ 45f71323e297a928af368937089d3ed71239786f86Andreas Huber if (el) 46f71323e297a928af368937089d3ed71239786f86Andreas Huber vpx_memset(dest_ptr1, src_ptr1[0], el); 4790d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber vpx_memset(dest_ptr2, src_ptr2[0], er); 4890d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber src_ptr1 += sp; 4990d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber src_ptr2 += sp; 5090d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber dest_ptr1 += sp; 5190d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber dest_ptr2 += sp; 5290d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber } 5390d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 54538f6170b788de7408b06efc6613dc98579aa6a6Andreas Huber /* Now copy the top and bottom source lines into each line of the respective borders */ 5590d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber src_ptr1 = s - el; 5690d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber src_ptr2 = s + sp * (h - 1) - el; 5790d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber dest_ptr1 = s + sp * (-et) - el; 5890d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber dest_ptr2 = s + sp * (h) - el; 5990d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber linesize = el + er + w + 1; 6090d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 6190d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber for (i = 0; i < (int)et; i++) 6290d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber { 6390d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber vpx_memcpy(dest_ptr1, src_ptr1, linesize); 6490d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber dest_ptr1 += sp; 6590d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber } 6690d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 6790d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber for (i = 0; i < (int)eb; i++) 6890d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber { 6990d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber vpx_memcpy(dest_ptr2, src_ptr2, linesize); 7090d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber dest_ptr2 += sp; 7190d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber } 7290d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber} 7390d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 7490d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 7590d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Hubervoid vp8_extend_to_multiple_of16(YV12_BUFFER_CONFIG *ybf, int width, int height) 7690d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber{ 7790d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber int er = 0xf & (16 - (width & 0xf)); 7890d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber int eb = 0xf & (16 - (height & 0xf)); 7990d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 80538f6170b788de7408b06efc6613dc98579aa6a6Andreas Huber /* check for non multiples of 16 */ 8190d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber if (er != 0 || eb != 0) 8290d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber { 8390d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber extend_plane_borders(ybf->y_buffer, ybf->y_stride, height, width, 0, 0, eb, er); 8490d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 85538f6170b788de7408b06efc6613dc98579aa6a6Andreas Huber /* adjust for uv */ 8690d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber height = (height + 1) >> 1; 8790d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber width = (width + 1) >> 1; 8890d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber er = 0x7 & (8 - (width & 0x7)); 8990d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber eb = 0x7 & (8 - (height & 0x7)); 9090d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 9190d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber if (er || eb) 9290d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber { 9390d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber extend_plane_borders(ybf->u_buffer, ybf->uv_stride, height, width, 0, 0, eb, er); 9490d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber extend_plane_borders(ybf->v_buffer, ybf->uv_stride, height, width, 0, 0, eb, er); 9590d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber } 9690d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber } 9790d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber} 9890d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 99538f6170b788de7408b06efc6613dc98579aa6a6Andreas Huber/* note the extension is only for the last row, for intra prediction purpose */ 10090d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Hubervoid vp8_extend_mb_row(YV12_BUFFER_CONFIG *ybf, unsigned char *YPtr, unsigned char *UPtr, unsigned char *VPtr) 10190d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber{ 10290d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber int i; 10390d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 10490d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber YPtr += ybf->y_stride * 14; 10590d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber UPtr += ybf->uv_stride * 6; 10690d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber VPtr += ybf->uv_stride * 6; 10790d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 10890d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber for (i = 0; i < 4; i++) 10990d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber { 11090d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber YPtr[i] = YPtr[-1]; 11190d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber UPtr[i] = UPtr[-1]; 11290d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber VPtr[i] = VPtr[-1]; 11390d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber } 11490d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 11590d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber YPtr += ybf->y_stride; 11690d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber UPtr += ybf->uv_stride; 11790d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber VPtr += ybf->uv_stride; 11890d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 11990d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber for (i = 0; i < 4; i++) 12090d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber { 12190d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber YPtr[i] = YPtr[-1]; 12290d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber UPtr[i] = UPtr[-1]; 12390d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber VPtr[i] = VPtr[-1]; 12490d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber } 12590d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber} 126