Mercurial > hg > xemacs-beta
annotate src/imgproc.h @ 851:e7ee5f8bde58
[xemacs-hg @ 2002-05-23 11:46:08 by ben]
fix for raymond toy's crash, alloca crashes, some recover-session improvements
files.el: Recover-session improvements: Only show session files where some
files can actually be recovered, and show in chronological order.
subr.el, menubar-items.el: As promised to rms, the functionality in
truncate-string-with-continuation-dots has been merged into
truncate-string-to-width. Change callers in menubar-items.el.
select.el: Document some of these funs better. Fix problem where we were
doing own-clipboard twice.
Makefile.in.in: Add alloca.o. Ensure that alloca.s doesn't compile into alloca.o,
but allocax.o (not that it's currently used or anything.)
EmacsFrame.c, abbrev.c, alloc.c, alloca.c, callint.c, callproc.c, config.h.in, device-msw.c, device-x.c, dired.c, doc.c, editfns.c, emacs.c, emodules.c, eval.c, event-Xt.c, event-msw.c, event-stream.c, file-coding.c, fileio.c, filelock.c, fns.c, glyphs-gtk.c, glyphs-msw.c, glyphs-x.c, gui-x.c, input-method-xlib.c, intl-win32.c, lisp.h, lread.c, menubar-gtk.c, menubar-msw.c, menubar.c, mule-wnnfns.c, nt.c, objects-msw.c, process-nt.c, realpath.c, redisplay-gtk.c, redisplay-output.c, redisplay-x.c, redisplay.c, search.c, select-msw.c, sysdep.c, syswindows.h, text.c, text.h, ui-byhand.c: Fix Raymond Toy's crash. Repeat to self: 2^21 - 1 is NOT the
same as (2 << 21) - 1.
Fix crashes due to excessive alloca(). replace alloca() with
ALLOCA(), which calls the C alloca() [which uses xmalloc()]
when the size is too big. Insert in various places calls to
try to flush the C alloca() stored info if there is any.
Add MALLOC_OR_ALLOCA(), for places that expect to be alloca()ing
large blocks. This xmalloc()s when too large and records an
unwind-protect to free -- relying on the caller to unbind_to()
elsewhere in the function. Use it in concat().
Use MALLOC instead of ALLOCA in select-msw.c.
xemacs.mak: Add alloca.o.
author | ben |
---|---|
date | Thu, 23 May 2002 11:46:46 +0000 |
parents | 8de8e3f6228a |
children | 2aa9cd456ae7 |
rev | line source |
---|---|
428 | 1 /* Image processing aux functions header file |
2 Copyright (C) 1998 Jareth Hein | |
3 | |
4 This file is a part of XEmacs | |
5 | |
6 XEmacs is free software; you can redistribute it and/or modify it | |
7 under the terms of the GNU General Public License as published by the | |
8 Free Software Foundation; either version 2, or (at your option) any | |
9 later version. | |
10 | |
11 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 for more details. | |
15 | |
16 You should have received a copy of the GNU General Public License | |
17 along with XEmacs; see the file COPYING. If not, write to | |
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
19 Boston, MA 02111-1307, USA. */ | |
20 | |
440 | 21 #ifndef INCLUDED_imgproc_h_ |
22 #define INCLUDED_imgproc_h_ | |
23 | |
428 | 24 /* Synched up with: Not in FSF. */ |
25 | |
26 /* Original author: Jareth Hein */ | |
27 | |
28 #define MAX_CMAP_SIZE 256 | |
29 #define COLOR_DEPTH 8 | |
30 #define MAX_COLOR 256 | |
31 | |
32 #define B_DEPTH 5 /* # bits/pixel to use */ | |
33 #define B_LEN (1L<<B_DEPTH) | |
34 | |
35 #define C_DEPTH 2 | |
36 #define C_LEN (1L<<C_DEPTH) /* # cells/color to use */ | |
37 | |
38 #define COLOR_SHIFT (COLOR_DEPTH-B_DEPTH) | |
39 | |
40 typedef struct colorbox { | |
41 struct colorbox *next, *prev; | |
42 int rmin, rmax; | |
43 int gmin, gmax; | |
44 int bmin, bmax; | |
45 int total; | |
46 } Colorbox; | |
47 | |
48 typedef struct { | |
49 int num_ents; | |
50 int entries[MAX_CMAP_SIZE][2]; | |
51 } C_cell; | |
52 | |
53 typedef struct { | |
54 unsigned short rm[MAX_CMAP_SIZE], gm[MAX_CMAP_SIZE], bm[MAX_CMAP_SIZE]; /* map values */ | |
55 int um[MAX_CMAP_SIZE]; /* usage counts for each mapentry */ | |
56 int histogram[B_LEN][B_LEN][B_LEN]; | |
57 int num_active_colors; | |
58 Colorbox *freeboxes; /* used and freed internally */ | |
59 Colorbox *usedboxes; /* used and freed internally */ | |
60 C_cell **ColorCells; /* used and freed internally */ | |
61 } quant_table; | |
62 | |
63 #define QUANT_GET_COLOR(qt,r,g,b) (qt->histogram[r>>COLOR_SHIFT][g>>COLOR_SHIFT][b>>COLOR_SHIFT]) | |
64 | |
65 quant_table *build_EImage_quantable(unsigned char *eimage, int width, int height, int num_colors); | |
440 | 66 |
67 #endif /* INCLUDED_imgproc_h_ */ |