view src/imgproc.h @ 5656:e9c3fe82127d

Co-operate with the byte-optimizer in the bytecomp.el labels implementation. lisp/ChangeLog addition: 2012-05-05 Aidan Kehoe <kehoea@parhasard.net> Co-operate with the byte-optimizer in the bytecomp.el labels implementation, don't work against it. * byte-optimize.el: * byte-optimize.el (byte-compile-inline-expand): Call #'byte-compile-unfold-lambda explicitly here, don't assume that the byte-optimizer will do it. * byte-optimize.el (byte-compile-unfold-lambda): Call #'byte-optimize-body on the body, don't just mapcar #'byte-optimize-form along it. * byte-optimize.el (byte-optimize-lambda): New. Optimize a lambda form. * byte-optimize.el (byte-optimize-form-code-walker): Descend lambda expressions, defun, and defmacro, relevant for lexically-oriented operators like #'labels. * byte-optimize.el (byte-optimize-body): Only return a non-eq object if we've actually optimized something * bytecomp.el (byte-compile-initial-macro-environment): In the labels implementation, work with the byte optimizer, not against it; warn when labels are defined but not used, automatically inline labels that are used only once. * bytecomp.el (byte-recompile-directory): No need to wrap #'byte-compile-report-error in a lambda with #'call-with-condition-handler here. * bytecomp.el (byte-compile-form): Don't inline compiled-function objects, they're probably labels. * bytecomp.el (byte-compile-funcall): No longer inline lambdas, trust the byte optimizer to have done it properly, even for labels. * cl-extra.el (cl-macroexpand-all): Treat labels established by the byte compiler distinctly from those established by cl-macs.el. * cl-macs.el (cl-do-proclaim): Treat labels established by the byte compiler distinctly from those established by cl-macs.el. * gui.el (make-gui-button): When referring to the #'gui-button-action label, quote it using function, otherwise there's a warning from the byte compiler.
author Aidan Kehoe <kehoea@parhasard.net>
date Sat, 05 May 2012 20:48:24 +0100
parents 2aa9cd456ae7
children 574f0cded429
line wrap: on
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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 3 of the License, 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.  If not, see <http://www.gnu.org/licenses/>. */

#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_ */