annotate src/imgproc.h @ 611:38db05db9cb5

[xemacs-hg @ 2001-06-08 12:21:09 by ben] ------ gc-in-window-procedure fixes ------ alloc.c: Create "post-gc actions", to avoid those dreaded "GC during window procedure" problems. event-msw.c: Abort, clean and simple, when GC in window procedure. We want to flush these puppies out. glyphs-msw.c: Use a post-gc action when destroying subwindows. lisp.h: Declare register_post_gc_action(). scrollbar-msw.c: Use a post-gc action when unshowing scrollbar windows, if in gc. redisplay.c: Add comment about the utter evilness of what's going down here. ------ cygwin setitimer fixes ------ Makefile.in.in: Compile profile.c only when HAVE_SETITIMER. nt.c: Style fixes. nt.c: Move setitimer() emulation to win32.c, because Cygwin needs it too. profile.c: Make sure we don't compile if no setitimer(). Use qxe_setitimer() instead of just plain setitimer(). signal.c: Define qxe_setitimer() as an encapsulation around setitimer() -- call setitimer() directly unless Cygwin or MS Win, in which case we use our simulated version in win32.c. systime.h: Prototype mswindows_setitimer() and qxe_setitimer(). Long comment about "qxe" and the policy regarding encapsulation. win32.c: Move setitimer() emulation here, so Cygwin can use it. Rename a couple of functions and variables to be longer and more descriptive. In setitimer_helper_proc(), send the signal using either mswindows_raise() or (on Cygwin) kill(). If for some reason we are still getting lockups, we'll change the kill() to directly invoke the signal handlers. ------ windows shell fixes ------ callproc.c, ntproc.c: Comments about how these two files must die. callproc.c: On MS Windows, init shell-file-name from SHELL, then COMSPEC, not just COMSPEC. (more correct and closer to FSF.) Don't force a value for SHELL into the environment. (Comments added to explain why not.) nt.c: Don't shove a fabricated SHELL into the environment. See above. ------ misc fixes ------ glyphs-shared.c: Style correction. xemacs-faq.texi: Merge in the rest of Hrvoje's Windows FAQ. Redo section 7 to update current reality and add condensed versions of new changes for 21.1 and 21.4. (Not quite done for 21.4.) Lots more Windows updates. process.el: Need to quote a null argument, too. From Dan Holmsand. startup.el: startup.el: Call MS Windows init function. win32-native.el: Correct comments at top. Correctly handle passing arguments to Cygwin programs and to bash. Fix quoting of zero-length arguments (from Dan Holmsand). Set shell-command-switch based on shell-file-name, which in turn comes from env var SHELL.
author ben
date Fri, 08 Jun 2001 12:21:27 +0000
parents 8de8e3f6228a
children 2aa9cd456ae7
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1 /* Image processing aux functions header file
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2 Copyright (C) 1998 Jareth Hein
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3
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4 This file is a part of XEmacs
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5
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6 XEmacs is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by the
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8 Free Software Foundation; either version 2, or (at your option) any
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9 later version.
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10
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11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs; see the file COPYING. If not, write to
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18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 Boston, MA 02111-1307, USA. */
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20
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21 #ifndef INCLUDED_imgproc_h_
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22 #define INCLUDED_imgproc_h_
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23
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24 /* Synched up with: Not in FSF. */
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25
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26 /* Original author: Jareth Hein */
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27
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28 #define MAX_CMAP_SIZE 256
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29 #define COLOR_DEPTH 8
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30 #define MAX_COLOR 256
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31
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32 #define B_DEPTH 5 /* # bits/pixel to use */
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33 #define B_LEN (1L<<B_DEPTH)
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34
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35 #define C_DEPTH 2
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36 #define C_LEN (1L<<C_DEPTH) /* # cells/color to use */
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37
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38 #define COLOR_SHIFT (COLOR_DEPTH-B_DEPTH)
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39
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40 typedef struct colorbox {
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41 struct colorbox *next, *prev;
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42 int rmin, rmax;
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43 int gmin, gmax;
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44 int bmin, bmax;
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45 int total;
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46 } Colorbox;
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47
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48 typedef struct {
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49 int num_ents;
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50 int entries[MAX_CMAP_SIZE][2];
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51 } C_cell;
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52
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53 typedef struct {
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54 unsigned short rm[MAX_CMAP_SIZE], gm[MAX_CMAP_SIZE], bm[MAX_CMAP_SIZE]; /* map values */
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55 int um[MAX_CMAP_SIZE]; /* usage counts for each mapentry */
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56 int histogram[B_LEN][B_LEN][B_LEN];
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57 int num_active_colors;
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58 Colorbox *freeboxes; /* used and freed internally */
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59 Colorbox *usedboxes; /* used and freed internally */
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60 C_cell **ColorCells; /* used and freed internally */
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61 } quant_table;
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62
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63 #define QUANT_GET_COLOR(qt,r,g,b) (qt->histogram[r>>COLOR_SHIFT][g>>COLOR_SHIFT][b>>COLOR_SHIFT])
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64
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65 quant_table *build_EImage_quantable(unsigned char *eimage, int width, int height, int num_colors);
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66
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67 #endif /* INCLUDED_imgproc_h_ */