diff options
Diffstat (limited to 'libavcodec/x86/videodsp_init.c')
| -rw-r--r-- | libavcodec/x86/videodsp_init.c | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/libavcodec/x86/videodsp_init.c b/libavcodec/x86/videodsp_init.c index 48f42d5be5..902450ea4d 100644 --- a/libavcodec/x86/videodsp_init.c +++ b/libavcodec/x86/videodsp_init.c @@ -1,25 +1,27 @@ /* + * Copyright (C) 2002-2012 Michael Niedermayer * Copyright (C) 2012 Ronald S. Bultje * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * - * Libav is distributed in the hope that it will be useful, + * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public - * License along with Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "config.h" #include "libavutil/attributes.h" +#include "libavutil/avassert.h" #include "libavutil/common.h" #include "libavutil/cpu.h" #include "libavutil/mem.h" @@ -36,19 +38,25 @@ extern emu_edge_core_func ff_emu_edge_core_mmx; extern emu_edge_core_func ff_emu_edge_core_sse; static av_always_inline void emulated_edge_mc(uint8_t *buf, const uint8_t *src, - ptrdiff_t linesize, + ptrdiff_t linesize_arg, int block_w, int block_h, int src_x, int src_y, int w, int h, emu_edge_core_func *core_fn) { int start_y, start_x, end_y, end_x, src_y_add = 0; + int linesize = linesize_arg; + + if(!w || !h) + return; if (src_y >= h) { - src_y_add = h - 1 - src_y; + src -= src_y*linesize; + src_y_add = h - 1; src_y = h - 1; } else if (src_y <= -block_h) { - src_y_add = 1 - block_h - src_y; + src -= src_y*linesize; + src_y_add = 1 - block_h; src_y = 1 - block_h; } if (src_x >= w) { @@ -63,8 +71,8 @@ static av_always_inline void emulated_edge_mc(uint8_t *buf, const uint8_t *src, start_x = FFMAX(0, -src_x); end_y = FFMIN(block_h, h-src_y); end_x = FFMIN(block_w, w-src_x); - assert(start_x < end_x && block_w > 0); - assert(start_y < end_y && block_h > 0); + av_assert2(start_x < end_x && block_w > 0); + av_assert2(start_y < end_y && block_h > 0); // fill in the to-be-copied part plus all above/below src += (src_y_add + start_y) * linesize + start_x; |