Mercurial > hg > xemacs-beta
view src/imgproc.h @ 2898:578cac55e68a
[xemacs-hg @ 2005-08-15 21:51:36 by viteno]
Update xemacs_extra_name.
author | viteno |
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date | Mon, 15 Aug 2005 21:51:36 +0000 |
parents | 8de8e3f6228a |
children | 2aa9cd456ae7 |
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/* Image processing aux functions header file Copyright (C) 1998 Jareth Hein This file is a part of XEmacs XEmacs is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. XEmacs 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 General Public License for more details. You should have received a copy of the GNU General Public License along with XEmacs; see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifndef INCLUDED_imgproc_h_ #define INCLUDED_imgproc_h_ /* Synched up with: Not in FSF. */ /* Original author: Jareth Hein */ #define MAX_CMAP_SIZE 256 #define COLOR_DEPTH 8 #define MAX_COLOR 256 #define B_DEPTH 5 /* # bits/pixel to use */ #define B_LEN (1L<<B_DEPTH) #define C_DEPTH 2 #define C_LEN (1L<<C_DEPTH) /* # cells/color to use */ #define COLOR_SHIFT (COLOR_DEPTH-B_DEPTH) typedef struct colorbox { struct colorbox *next, *prev; int rmin, rmax; int gmin, gmax; int bmin, bmax; int total; } Colorbox; typedef struct { int num_ents; int entries[MAX_CMAP_SIZE][2]; } C_cell; typedef struct { unsigned short rm[MAX_CMAP_SIZE], gm[MAX_CMAP_SIZE], bm[MAX_CMAP_SIZE]; /* map values */ int um[MAX_CMAP_SIZE]; /* usage counts for each mapentry */ int histogram[B_LEN][B_LEN][B_LEN]; int num_active_colors; Colorbox *freeboxes; /* used and freed internally */ Colorbox *usedboxes; /* used and freed internally */ C_cell **ColorCells; /* used and freed internally */ } quant_table; #define QUANT_GET_COLOR(qt,r,g,b) (qt->histogram[r>>COLOR_SHIFT][g>>COLOR_SHIFT][b>>COLOR_SHIFT]) quant_table *build_EImage_quantable(unsigned char *eimage, int width, int height, int num_colors); #endif /* INCLUDED_imgproc_h_ */