kstars/kstars/indi/webcam/vcvt.h

   1 /*
   2    (C) 2001 Nemosoft Unv.    nemosoft@smcc.demon.nl
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 2 of the License, or
   7    (at your option) any later version.
   8
   9    This program 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
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program; if not, write to the Free Software
  16    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17
  18 */
  19
  20
  21 /* 'Viewport' conversion routines. These functions convert from one colour
  22    space to another, taking into account that the source image has a smaller
  23    size than the view, and is placed inside the view:
  24
  25         +-------view.x------------+
  26         |                         |
  27         |     +---image.x---+     |
  28         |     |             |     |
  29         |     |             |     |
  30         |     +-------------+     |
  31         |                         |
  32         +-------------------------+
  33
  34    The image should always be smaller than the view. The offset (top-left
  35    corner of the image) should be precomputed, so you can place the image
  36    anywhere in the view.
  37
  38    The functions take these parameters:
  39    - width      image width (in pixels)
  40    - height     image height (in pixels)
  41    - plus       view width (in pixels)
  42    *src         pointer at start of image
  43    *dst         pointer at offset (!) in view
  44 */
  45
  46
  47 #ifndef VCVT_H
  48 #define VCVT_H
  49
  50 #ifdef __cplusplus
  51 extern "C" {
  52 #endif
  53
  54 /* Functions in vcvt_i386.S/vcvt_c.c */
  55 /* 4:2:0 YUV interlaced to RGB/BGR */
  56 void vcvt_420i_bgr24(int width, int height, int plus, void *src, void *dst);
  57 void vcvt_420i_rgb24(int width, int height, int plus, void *src, void *dst);
  58 void vcvt_420i_bgr32(int width, int height, int plus, void *src, void *dst);
  59 void vcvt_420i_rgb32(int width, int height, int plus, void *src, void *dst);
  60
  61
  62 /* Go from 420i to other yuv formats */
  63 void vcvt_420i_420p(int width, int height, int plus, void *src, void *dsty, void *dstu, void *dstv);
  64 void vcvt_420i_yuyv(int width, int height, int plus, void *src, void *dst);
  65
  66 #if 0
  67 #endif
  68
  69 #ifdef __cplusplus
  70 }
  71 #endif
  72
  73 #endif