1/* 2 * This file is part of MPlayer. 3 * 4 * MPlayer is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Lesser General Public 6 * License as published by the Free Software Foundation; either 7 * version 2.1 of the License, or (at your option) any later version. 8 * 9 * MPlayer is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Lesser General Public License for more details. 13 * 14 * You should have received a copy of the GNU Lesser General Public 15 * License along with MPlayer; if not, write to the Free Software 16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 17 */ 18 19#ifndef MPLAYER_FASTMEMCPY_H 20#define MPLAYER_FASTMEMCPY_H 21 22#include <inttypes.h> 23#include <string.h> 24#include <stddef.h> 25 26void * fast_memcpy(void * to, const void * from, size_t len); 27void * mem2agpcpy(void * to, const void * from, size_t len); 28 29#if ! defined(CONFIG_FASTMEMCPY) || ! (HAVE_MMX || HAVE_MMX2 || HAVE_AMD3DNOW /* || HAVE_SSE || HAVE_SSE2 */) 30#define mem2agpcpy(a,b,c) memcpy(a,b,c) 31#define fast_memcpy(a,b,c) memcpy(a,b,c) 32#endif 33 34static inline void * mem2agpcpy_pic(void * dst, const void * src, int bytesPerLine, int height, int dstStride, int srcStride) 35{ 36 int i; 37 void *retval=dst; 38 39 if(dstStride == srcStride) 40 { 41 if (srcStride < 0) { 42 src = (const uint8_t*)src + (height-1)*srcStride; 43 dst = (uint8_t*)dst + (height-1)*dstStride; 44 srcStride = -srcStride; 45 } 46 47 mem2agpcpy(dst, src, srcStride*height); 48 } 49 else 50 { 51 for(i=0; i<height; i++) 52 { 53 mem2agpcpy(dst, src, bytesPerLine); 54 src = (const uint8_t*)src + srcStride; 55 dst = (uint8_t*)dst + dstStride; 56 } 57 } 58 59 return retval; 60} 61 62#define memcpy_pic(d, s, b, h, ds, ss) memcpy_pic2(d, s, b, h, ds, ss, 0) 63#define my_memcpy_pic(d, s, b, h, ds, ss) memcpy_pic2(d, s, b, h, ds, ss, 1) 64 65/** 66 * \param limit2width always skip data between end of line and start of next 67 * instead of copying the full block when strides are the same 68 */ 69static inline void * memcpy_pic2(void * dst, const void * src, 70 int bytesPerLine, int height, 71 int dstStride, int srcStride, int limit2width) 72{ 73 int i; 74 void *retval=dst; 75 76 if(!limit2width && dstStride == srcStride) 77 { 78 if (srcStride < 0) { 79 src = (const uint8_t*)src + (height-1)*srcStride; 80 dst = (uint8_t*)dst + (height-1)*dstStride; 81 srcStride = -srcStride; 82 } 83 84 fast_memcpy(dst, src, srcStride*height); 85 } 86 else 87 { 88 for(i=0; i<height; i++) 89 { 90 fast_memcpy(dst, src, bytesPerLine); 91 src = (const uint8_t*)src + srcStride; 92 dst = (uint8_t*)dst + dstStride; 93 } 94 } 95 96 return retval; 97} 98 99#endif /* MPLAYER_FASTMEMCPY_H */ 100