modules/video_chroma/copy.h

   1 /*****************************************************************************
   2  * copy.h: Fast YV12/NV12 copy
   3  *****************************************************************************
   4  * Copyright (C) 2009 Laurent Aimar
   5  * $Id$
   6  *
   7  * Authors: Laurent Aimar <fenrir_AT_ videolan _DOT_ org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify it
  10  * under the terms of the GNU Lesser General Public License as published by
  11  * the Free Software Foundation; either version 2.1 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17  * GNU Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public License
  20  * along with this program; if not, write to the Free Software Foundation,
  21  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 #ifndef VLC_VIDEOCHROMA_COPY_H_
  25 #define VLC_VIDEOCHROMA_COPY_H_
  26
  27 typedef struct {
  28 # ifdef CAN_COMPILE_SSE2
  29     uint8_t *buffer;
  30     size_t  size;
  31 # endif
  32 } copy_cache_t;
  33
  34 int  CopyInitCache(copy_cache_t *cache, unsigned width);
  35 void CopyCleanCache(copy_cache_t *cache);
  36
  37 /* Copy planes from NV12 to YV12 */
  38 void CopyFromNv12ToYv12(picture_t *dst, uint8_t *src[2], size_t src_pitch[2],
  39                         unsigned height, copy_cache_t *cache);
  40 /* Copy planes from YV12 to YV12 */
  41 void CopyFromYv12ToYv12(picture_t *dst, uint8_t *src[3], size_t src_pitch[3],
  42                         unsigned height, copy_cache_t *cache);
  43
  44 void CopyFromNv12ToNv12(picture_t *dst, uint8_t *src[2], size_t src_pitch[2],
  45                         unsigned height, copy_cache_t *cache);
  46
  47 void CopyFromNv12ToI420(picture_t *dst, uint8_t *src[2], size_t src_pitch[2],
  48                         unsigned height, copy_cache_t *cache);
  49
  50 void CopyFromI420ToNv12(picture_t *dst, uint8_t *src[3], size_t src_pitch[3],
  51                         unsigned height, copy_cache_t *cache);
  52
  53 void CopyFromI420_10ToP010(picture_t *dst, uint8_t *src[3], size_t src_pitch[3],
  54                         unsigned height, copy_cache_t *cache);
  55
  56 /**
  57  * This functions sets the internal plane pointers/dimensions for the given
  58  * buffer.
  59  * This is useful when mapping opaque surfaces into CPU planes.
  60  *
  61  * picture is the picture to update
  62  * data is the buffer pointer to use as the start of data for all the planes
  63  * pitch is the internal line pitch for the buffer
  64  */
  65 int picture_UpdatePlanes(picture_t *picture, uint8_t *data, unsigned pitch);
  66
  67 #endif