modules/arm_neon/chroma_neon.h

   1 /*****************************************************************************
   2  * chroma_neon.h
   3  *****************************************************************************
   4  * Copyright (C) 2011 Rémi Denis-Courmont
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU Lesser General Public License as published by
   8  * the Free Software Foundation; either version 2.1 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14  * GNU Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public License
  17  * along with this program; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  19  *****************************************************************************/
  20
  21 /* Planes must start on a 16-bytes boundary. Pitches must be multiples of 16
  22  * bytes even for subsampled components. */
  23
  24 /* Planar picture buffer.
  25  * Pitch corresponds to luminance component in bytes. Chrominance pitches are
  26  * inferred from the color subsampling ratio. */
  27 struct yuv_planes
  28 {
  29     void *y, *u, *v;
  30     size_t pitch;
  31 };
  32
  33 /* Planar chroma buffers.
  34  * Pitch is in bytes. */
  35 struct uv_planes
  36 {
  37     void *u, *v;
  38     size_t pitch;
  39 };
  40
  41 /* Packed picture buffer. Pitch is in bytes (_not_ pixels). */
  42 struct yuv_pack
  43 {
  44     void *yuv;
  45     size_t pitch;
  46 };
  47
  48 /* I420 to YUYV conversion. */
  49 void i420_yuyv_neon (struct yuv_pack *const out,
  50                      const struct yuv_planes *const in,
  51                      int width, int height);
  52
  53 /* I420 to UYVY conversion. */
  54 void i420_uyvy_neon (struct yuv_pack *const out,
  55                      const struct yuv_planes *const in,
  56                      int width, int height);
  57
  58 /* I422 to YUYV conversion. */
  59 void i422_yuyv_neon (struct yuv_pack *const out,
  60                      const struct yuv_planes *const in,
  61                      int width, int height);
  62
  63 /* I422 to UYVY conversion. */
  64 void i422_uyvy_neon (struct yuv_pack *const out,
  65                      const struct yuv_planes *const in,
  66                      int width, int height);
  67
  68 /* YUYV to I422 conversion. */
  69 void yuyv_i422_neon (struct yuv_planes *const out,
  70                      const struct yuv_pack *const in,
  71                      int width, int height);
  72
  73 /* UYVY to I422 conversion. */
  74 void uyvy_i422_neon (struct yuv_planes *const out,
  75                      const struct yuv_pack *const in,
  76                      int width, int height);
  77
  78 /* Semiplanar to planar conversion. */
  79 void deinterleave_chroma_neon (struct uv_planes *const out,
  80                                const struct yuv_pack *const in,
  81                                int width, int height);
  82
  83 /* I420 to RGBA conversion. */
  84 void i420_rgb_neon (struct yuv_pack *const out,
  85                     const struct yuv_planes *const in,
  86                     int width, int height);
  87
  88 /* I420 to RV16 conversion. */
  89 void i420_rv16_neon (struct yuv_pack *const out,
  90                      const struct yuv_planes *const in,
  91                      int width, int height);
  92
  93 /* NV21 to RGBA conversion. */
  94 void nv21_rgb_neon (struct yuv_pack *const out,
  95                     const struct yuv_planes *const in,
  96                     int width, int height);
  97
  98 /* NV12 to RGBA conversion. */
  99 void nv12_rgb_neon (struct yuv_pack *const out,
 100                     const struct yuv_planes *const in,
 101                     int width, int height);