From 13a06349251874bd35d2f03c3fc93217cee749a2 Mon Sep 17 00:00:00 2001
From: Nickolay V. Shmyrev <nshmyrev@yandex.ru>
Date: Mon, 08 Jan 2007 12:25:31 +0000
Subject: Reorganize source tree.

2007-01-08  Nickolay V. Shmyrev  <nshmyrev@yandex.ru>

	* Makefile.am:
	* backend/Makefile.am:
	* backend/comics/Makefile.am:
	* backend/djvu/Makefile.am:
	* backend/dvi/Makefile.am:
	* backend/ev-async-renderer.c:
	* backend/ev-async-renderer.h:
	* backend/ev-attachment.c:
	* backend/ev-attachment.h:
	* backend/ev-backend-marshal.c:
	* backend/ev-document-factory.c:
	* backend/ev-document-factory.h:
	* backend/ev-document-find.c:
	* backend/ev-document-find.h:
	* backend/ev-document-fonts.c:
	* backend/ev-document-fonts.h:
	* backend/ev-document-images.c:
	* backend/ev-document-images.h:
	* backend/ev-document-info.h:
	* backend/ev-document-links.c:
	* backend/ev-document-links.h:
	* backend/ev-document-misc.c:
	* backend/ev-document-misc.h:
	* backend/ev-document-security.c:
	* backend/ev-document-security.h:
	* backend/ev-document-thumbnails.c:
	* backend/ev-document-thumbnails.h:
	* backend/ev-document-transition.c:
	* backend/ev-document-transition.h:
	* backend/ev-document.c:
	* backend/ev-document.h:
	* backend/ev-file-exporter.c:
	* backend/ev-file-exporter.h:
	* backend/ev-image.c:
	* backend/ev-image.h:
	* backend/ev-link-action.c:
	* backend/ev-link-action.h:
	* backend/ev-link-dest.c:
	* backend/ev-link-dest.h:
	* backend/ev-link.c:
	* backend/ev-link.h:
	* backend/ev-render-context.c:
	* backend/ev-render-context.h:
	* backend/ev-selection.c:
	* backend/ev-selection.h:
	* backend/impress/Makefile.am:
	* backend/pdf/Makefile.am:
	* backend/pixbuf/Makefile.am:
	* backend/ps/Makefile.am:
	* backend/ps/ps-document.c: (push_pixbuf), (interpreter_failed),
	(ps_document_widget_event), (setup_pixmap), (setup_page), (input),
	(start_interpreter), (stop_interpreter), (document_load),
	(ps_document_next_page), (render_page):
	* backend/tiff/Makefile.am:
	* comics/Makefile.am:
	* comics/comics-document.c:
	* comics/comics-document.h:
	* configure.ac:
	* cut-n-paste/zoom-control/ephy-zoom-control.c:
	* djvu/Makefile.am:
	* djvu/djvu-document-private.h:
	* djvu/djvu-document.c:
	* djvu/djvu-document.h:
	* djvu/djvu-links.c:
	* djvu/djvu-links.h:
	* djvu/djvu-text-page.c:
	* djvu/djvu-text-page.h:
	* djvu/djvu-text.c:
	* djvu/djvu-text.h:
	* dvi/Makefile.am:
	* dvi/dvi-document.c:
	* dvi/dvi-document.h:
	* dvi/fonts.c:
	* dvi/fonts.h:
	* dvi/mdvi-lib/Makefile.am:
	* dvi/mdvi-lib/afmparse.c:
	* dvi/mdvi-lib/afmparse.h:
	* dvi/mdvi-lib/bitmap.c:
	* dvi/mdvi-lib/bitmap.h:
	* dvi/mdvi-lib/color.c:
	* dvi/mdvi-lib/color.h:
	* dvi/mdvi-lib/common.c:
	* dvi/mdvi-lib/common.h:
	* dvi/mdvi-lib/defaults.h:
	* dvi/mdvi-lib/dvimisc.c:
	* dvi/mdvi-lib/dviopcodes.h:
	* dvi/mdvi-lib/dviread.c:
	* dvi/mdvi-lib/files.c:
	* dvi/mdvi-lib/font.c:
	* dvi/mdvi-lib/fontmap.c:
	* dvi/mdvi-lib/fontmap.h:
	* dvi/mdvi-lib/fontsrch.c:
	* dvi/mdvi-lib/gf.c:
	* dvi/mdvi-lib/hash.c:
	* dvi/mdvi-lib/hash.h:
	* dvi/mdvi-lib/list.c:
	* dvi/mdvi-lib/mdvi.h:
	* dvi/mdvi-lib/pagesel.c:
	* dvi/mdvi-lib/paper.c:
	* dvi/mdvi-lib/paper.h:
	* dvi/mdvi-lib/pk.c:
	* dvi/mdvi-lib/private.h:
	* dvi/mdvi-lib/setup.c:
	* dvi/mdvi-lib/sp-epsf.c:
	* dvi/mdvi-lib/special.c:
	* dvi/mdvi-lib/sysdeps.h:
	* dvi/mdvi-lib/t1.c:
	* dvi/mdvi-lib/tfm.c:
	* dvi/mdvi-lib/tfmfile.c:
	* dvi/mdvi-lib/tt.c:
	* dvi/mdvi-lib/util.c:
	* dvi/mdvi-lib/vf.c:
	* dvi/pixbuf-device.c:
	* dvi/pixbuf-device.h:
	* impress/Makefile.am:
	* impress/common.h:
	* impress/document.c:
	* impress/f_oasis.c:
	* impress/f_oo13.c:
	* impress/iksemel.c:
	* impress/iksemel.h:
	* impress/imposter.h:
	* impress/impress-document.c:
	* impress/impress-document.h:
	* impress/internal.h:
	* impress/r_back.c:
	* impress/r_draw.c:
	* impress/r_geometry.c:
	* impress/r_gradient.c:
	* impress/r_style.c:
	* impress/r_text.c:
	* impress/render.c:
	* impress/render.h:
	* impress/zip.c:
	* impress/zip.h:
	* lib/Makefile.am:
	* lib/ev-debug.c:
	* lib/ev-debug.h:
	* lib/ev-file-helpers.c:
	* lib/ev-file-helpers.h:
	* lib/ev-gui.c:
	* lib/ev-gui.h:
	* lib/ev-tooltip.c:
	* lib/ev-tooltip.h:
	* libdocument/Makefile.am:
	* libdocument/ev-file-helpers.c:
	* pdf/Makefile.am:
	* pdf/ev-poppler.cc:
	* pdf/ev-poppler.h:
	* pixbuf/Makefile.am:
	* pixbuf/pixbuf-document.c:
	* pixbuf/pixbuf-document.h:
	* properties/Makefile.am:
	* ps/Makefile.am:
	* ps/gsdefaults.c:
	* ps/gsdefaults.h:
	* ps/gsio.c:
	* ps/gsio.h:
	* ps/gstypes.h:
	* ps/ps-document.c:
	* ps/ps-document.h:
	* ps/ps.c:
	* ps/ps.h:
	* shell/Makefile.am:
	* shell/ev-application.h:
	* shell/ev-sidebar-links.c:
	* shell/ev-sidebar-links.h:
	* shell/ev-utils.c: (ev_gui_sanitise_popup_position),
	(ev_gui_menu_position_tree_selection):
	* shell/ev-utils.h:
	* shell/ev-view.c: (ev_view_finalize):
	* shell/ev-window.c:
	* shell/main.c: (main):
	* thumbnailer/Makefile.am:
	* tiff/Makefile.am:
	* tiff/tiff-document.c:
	* tiff/tiff-document.h:
	* tiff/tiff2ps.c:
	* tiff/tiff2ps.h:
	
	Reorganize source tree.



svn path=/trunk/; revision=2197
---
(limited to 'dvi/mdvi-lib/dviread.c')

diff --git a/dvi/mdvi-lib/dviread.c b/dvi/mdvi-lib/dviread.c
deleted file mode 100644
index 8398c27..0000000
--- a/dvi/mdvi-lib/dviread.c
+++ /dev/null
@@ -1,1584 +0,0 @@
-/*
- * Copyright (C) 2000, Matias Atria
- *
- * This program 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 of the License, or
- * (at your option) any later version.
- *
- * This program 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 this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdarg.h>
-#include <string.h>
-#include <math.h>
-#include <errno.h>
-#include <unistd.h>
-#include <fcntl.h>
-
-#include "mdvi.h"
-#include "private.h"
-#include "color.h"
-
-typedef int (*DviCommand) __PROTO((DviContext *, int));
-
-#define DVICMDDEF(x)	static int x __PROTO((DviContext *, int))
-
-DVICMDDEF(set_char);
-DVICMDDEF(set_rule);
-DVICMDDEF(no_op);
-DVICMDDEF(push);
-DVICMDDEF(pop);
-DVICMDDEF(move_right);
-DVICMDDEF(move_down);
-DVICMDDEF(move_w);
-DVICMDDEF(move_x);
-DVICMDDEF(move_y);
-DVICMDDEF(move_z);
-DVICMDDEF(sel_font);
-DVICMDDEF(sel_fontn);
-DVICMDDEF(special);
-DVICMDDEF(def_font);
-DVICMDDEF(undefined);
-DVICMDDEF(unexpected);
-
-static const DviCommand dvi_commands[] = {
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char, 
-	set_char, set_char, set_char, set_char,	/* 0 - 127 */
-	set_char, set_char, set_char, set_char, /* 128 - 131 */
-	set_rule,				/* 132 */
-	set_char, set_char, set_char, set_char, /* 133 - 136 */
-	set_rule,				/* 137 */
-	no_op,					/* 138 */
-	unexpected,				/* 139 (BOP) */
-	unexpected,				/* 140 (EOP) */
-	push,					/* 141 */
-	pop,					/* 142 */
-	move_right, move_right, move_right, move_right,	/* 143 - 146 */
-	move_w, move_w, move_w, move_w,	move_w,	/* 147 - 151 */
-	move_x, move_x, move_x, move_x, move_x,	/* 152 - 156 */
-	move_down, move_down, move_down, move_down,	/* 157 - 160 */
-	move_y, move_y, move_y, move_y, move_y,	/* 161 - 165 */
-	move_z, move_z, move_z, move_z, move_z,	/* 166 - 170 */
-	sel_font, sel_font, sel_font, sel_font,
-	sel_font, sel_font, sel_font, sel_font,
-	sel_font, sel_font, sel_font, sel_font,
-	sel_font, sel_font, sel_font, sel_font,
-	sel_font, sel_font, sel_font, sel_font,
-	sel_font, sel_font, sel_font, sel_font,
-	sel_font, sel_font, sel_font, sel_font,
-	sel_font, sel_font, sel_font, sel_font,
-	sel_font, sel_font, sel_font, sel_font,
-	sel_font, sel_font, sel_font, sel_font,
-	sel_font, sel_font, sel_font, sel_font,
-	sel_font, sel_font, sel_font, sel_font,
-	sel_font, sel_font, sel_font, sel_font,
-	sel_font, sel_font, sel_font, sel_font,
-	sel_font, sel_font, sel_font, sel_font,
-	sel_font, sel_font, sel_font, sel_font,	/* 171 - 234 */
-	sel_fontn, sel_fontn, sel_fontn, sel_fontn, 	/* 235 - 238 */
-	special, special, special, special,	/* 239 - 242 */
-	def_font, def_font, def_font, def_font,	/* 243 - 246 */
-	unexpected,				/* 247 (PRE) */
-	unexpected,				/* 248 (POST) */
-	unexpected,				/* 249 (POST_POST) */
-	undefined, undefined, undefined, 
-	undefined, undefined, undefined		/* 250 - 255 */
-};
-
-#define DVI_BUFLEN	4096
-
-static int	mdvi_run_macro(DviContext *dvi, Uchar *macro, size_t len);
-
-static void dummy_draw_glyph(DviContext *dvi, DviFontChar *ch, int x, int y)
-{
-}
-
-static void dummy_draw_rule(DviContext *dvi, int x, int y, Uint w, Uint h, int f)
-{
-}
-
-static int dummy_alloc_colors(void *a, Ulong *b, int c, Ulong d, Ulong e, double f, int g)
-{
-	return -1;
-}
-
-static void *dummy_create_image(void *a, Uint b, Uint c, Uint d)
-{
-	return NULL;
-}
-
-static void dummy_free_image(void *a)
-{
-}
-
-static void dummy_dev_destroy(void *a)
-{
-}
-
-static void dummy_dev_putpixel(void *a, int x, int y, Ulong c)
-{
-}
-
-static void dummy_dev_refresh(DviContext *a, void *b)
-{
-}
-
-static void dummy_dev_set_color(void *a, Ulong b, Ulong c)
-{
-}
-
-/* functions to report errors */
-static void dvierr(DviContext *dvi, const char *format, ...)
-{
-	va_list	ap;
-	
-	va_start(ap, format);
-	fprintf(stderr, "%s[%d]: Error: ",
-		dvi->filename, dvi->currpage);
-	vfprintf(stderr, format, ap);
-	va_end(ap);
-}
-
-static void dviwarn(DviContext *dvi, const char *format, ...)
-{
-	va_list	ap;
-	
-	fprintf(stderr, "%s[%d]: Warning: ",
-		dvi->filename, dvi->currpage);
-	va_start(ap, format);
-	vfprintf(stderr, format, ap);
-	va_end(ap);
-}
-
-#define NEEDBYTES(d,n) \
-	((d)->buffer.pos + (n) > (d)->buffer.length)
-
-static int get_bytes(DviContext *dvi, size_t n)
-{	
-	/* 
-	 * caller wants to read `n' bytes from dvi->buffer + dvi->pos.
-	 * Make sure there is enough data to satisfy the request 
-	 */
-	if(NEEDBYTES(dvi, n)) {
-		size_t	required;
-		int	newlen;
-		
-		if(dvi->buffer.frozen || dvi->in == NULL || feof(dvi->in)) {
-			/* this is EOF */
-			dviwarn(dvi, _("unexpected EOF\n"));
-			return -1;
-		}
-		/* get more data */
-		if(dvi->buffer.data == NULL) {
-			/* first allocation */
-			dvi->buffer.size = Max(DVI_BUFLEN, n);
-			dvi->buffer.data = (Uchar *)mdvi_malloc(dvi->buffer.size);
-			dvi->buffer.length = 0;
-			dvi->buffer.frozen = 0;
-		} else if(dvi->buffer.pos < dvi->buffer.length) {
-			/* move whatever we want to keep */
-			dvi->buffer.length -= dvi->buffer.pos;
-			memmove(dvi->buffer.data,
-				dvi->buffer.data + dvi->buffer.pos,
-				dvi->buffer.length);
-		} else {
-			/* we can discard all the data in this buffer */
-			dvi->buffer.length = 0;
-		}
-
-		required = n - dvi->buffer.length;
-		if(required > dvi->buffer.size - dvi->buffer.length) {
-			/* need to allocate more memory */
-			dvi->buffer.size = dvi->buffer.length + required + 128;
-			dvi->buffer.data = (Uchar *)xresize(dvi->buffer.data,
-				char, dvi->buffer.size);
-		}
-		/* now read into the buffer */
-		newlen = fread(dvi->buffer.data + dvi->buffer.length,
-			1, dvi->buffer.size - dvi->buffer.length, dvi->in);
-		if(newlen == -1) {
-			error("%s: %s\n", dvi->filename, strerror(errno));
-			return -1;
-		}
-		dvi->buffer.length += newlen;
-		dvi->buffer.pos = 0;
-	}
-	return 0;
-}
-
-/* only relative forward seeks are supported by this function */
-static int dskip(DviContext *dvi, long offset)
-{
-	ASSERT(offset > 0);
-	
-	if(NEEDBYTES(dvi, offset) && get_bytes(dvi, offset) == -1)
-		return -1;
-	dvi->buffer.pos += offset;
-	return 0;
-}
-
-/* DVI I/O functions (note: here `n' must be <= 4) */
-static long dsgetn(DviContext *dvi, size_t n)
-{
-	long	val;
-
-	if(NEEDBYTES(dvi, n) && get_bytes(dvi, n) == -1)
-		return -1;
-	val = msgetn(dvi->buffer.data + dvi->buffer.pos, n);
-	dvi->buffer.pos += n;
-	return val;
-}
-
-static int dread(DviContext *dvi, char *buffer, size_t len)
-{
-	if(NEEDBYTES(dvi, len) && get_bytes(dvi, len) == -1)
-		return -1;
-	memcpy(buffer, dvi->buffer.data + dvi->buffer.pos, len);
-	dvi->buffer.pos += len;
-	return 0;
-}
-
-static long dugetn(DviContext *dvi, size_t n)
-{
-	long	val;
-
-	if(NEEDBYTES(dvi, n) && get_bytes(dvi, n) == -1)	
-		return -1;	
-	val = mugetn(dvi->buffer.data + dvi->buffer.pos, n);
-	dvi->buffer.pos += n;
-	return val;
-}
-
-static long dtell(DviContext *dvi)
-{
-	return dvi->depth ? 
-		dvi->buffer.pos : 
-		ftell(dvi->in) - dvi->buffer.length + dvi->buffer.pos;
-}
-
-static void dreset(DviContext *dvi)
-{
-	if(!dvi->buffer.frozen && dvi->buffer.data)
-		mdvi_free(dvi->buffer.data);
-	dvi->buffer.data = NULL;
-	dvi->buffer.size = 0;
-	dvi->buffer.length = 0;
-	dvi->buffer.pos = 0;
-}
-
-#define dsget1(d)	dsgetn((d), 1)
-#define dsget2(d)	dsgetn((d), 2)
-#define dsget3(d)	dsgetn((d), 3)
-#define dsget4(d)	dsgetn((d), 4)
-#define duget1(d)	dugetn((d), 1)
-#define duget2(d)	dugetn((d), 2)
-#define duget3(d)	dugetn((d), 3)
-#define duget4(d)	dugetn((d), 4)
-
-#ifndef NODEBUG
-static void dviprint(DviContext *dvi, const char *command, int sub, const char *fmt, ...)
-{
-	int	i;
-	va_list	ap;
-	
-	printf("%s: ", dvi->filename);
-	for(i = 0; i < dvi->depth; i++)
-		printf("  ");
-	printf("%4lu: %s", dtell(dvi), command);
-	if(sub >= 0) printf("%d", sub);
-	if(*fmt) printf(": ");
-	va_start(ap, fmt);
-	vprintf(fmt, ap);
-	va_end(ap);
-}
-#define SHOWCMD(x)	\
-	if(_mdvi_debug_mask & DBG_OPCODE) do { dviprint x; } while(0)
-#else
-#define SHOWCMD(x)	do { } while(0)
-#endif
-
-int	mdvi_find_tex_page(DviContext *dvi, int tex_page)
-{
-	int	i;
-	
-	for(i = 0; i < dvi->npages; i++)
-		if(dvi->pagemap[i][1] == tex_page)
-			return i;
-	return -1;
-}
-
-/* page sorting functions */
-static int sort_up(const void *p1, const void *p2)
-{
-	return ((long *)p1)[1] - ((long *)p2)[1];
-}
-static int sort_down(const void *p1, const void *p2)
-{
-	return ((long *)p2)[1] - ((long *)p1)[1];
-}
-static int sort_random(const void *p1, const void *p2)
-{
-	return (random() % 1) ? -1 : 1;
-}
-static int sort_dvi_up(const void *p1, const void *p2)
-{
-	return ((long *)p1)[0] - ((long *)p2)[0];
-}
-static int sort_dvi_down(const void *p1, const void *p2)
-{
-	return ((long *)p1)[0] - ((long *)p2)[0];
-}
-
-void	mdvi_sort_pages(DviContext *dvi, DviPageSort type)
-{
-	int	(*sortfunc) __PROTO((const void *, const void *));
-	
-	switch(type) {
-	case MDVI_PAGE_SORT_UP:
-		sortfunc = sort_up;
-		break;
-	case MDVI_PAGE_SORT_DOWN:
-		sortfunc = sort_down;
-		break;
-	case MDVI_PAGE_SORT_RANDOM:
-		sortfunc = sort_random;
-		break;
-	case MDVI_PAGE_SORT_DVI_UP:
-		sortfunc = sort_dvi_up;
-		break;
-	case MDVI_PAGE_SORT_DVI_DOWN:
-		sortfunc = sort_dvi_down;
-		break;
-	case MDVI_PAGE_SORT_NONE:
-	default:
-		sortfunc = NULL;
-		break;
-	}
-	
-	if(sortfunc)
-		qsort(dvi->pagemap, dvi->npages, sizeof(PageNum), sortfunc);
-}
-
-static DviFontRef *define_font(DviContext *dvi, int op)
-{
-	Int32	arg;
-	Int32	scale;
-	Int32	dsize;
-	Int32	checksum;
-	int	hdpi;
-	int	vdpi;
-	int	n;
-	char	*name;
-	DviFontRef *ref;
-	
-	arg = dugetn(dvi, op - DVI_FNT_DEF1 + 1);
-	checksum = duget4(dvi);
-	scale = duget4(dvi);
-	dsize = duget4(dvi);
-	hdpi = FROUND(dvi->params.mag * dvi->params.dpi * scale / dsize);
-	vdpi = FROUND(dvi->params.mag * dvi->params.vdpi * scale / dsize);
-	n = duget1(dvi) + duget1(dvi);
-	name = mdvi_malloc(n + 1);
-	dread(dvi, name, n);
-	name[n] = 0;
-	DEBUG((DBG_FONTS, "requesting font %d = `%s' at %.1fpt (%dx%d dpi)\n",
-		arg, name, (double)scale / (dvi->params.tfm_conv * 0x100000),
-		hdpi, vdpi));
-	ref = font_reference(&dvi->params, arg, name, checksum, hdpi, vdpi, scale);
-	if(ref == NULL) {
-		error(_("could not load font `%s'\n"), name);
-		mdvi_free(name);
-		return NULL;
-	}
-	mdvi_free(name);
-	return ref;
-}
-
-static char *opendvi(const char *name)
-{
-	int	len;
-	char	*file;
-	
-	len = strlen(name);
-	/* if file ends with .dvi and it exists, that's it */
-	if(len >= 4 && STREQ(name+len-4, ".dvi")) {
-		DEBUG((DBG_DVI|DBG_FILES, "opendvi: Trying `%s'\n", name));
-		if(access(name, R_OK) == 0)
-			return mdvi_strdup(name);
-	}
-		
-	/* try appending .dvi */
-	file = mdvi_malloc(len + 5);
-	strcpy(file, name);
-	strcpy(file+len, ".dvi");
-	DEBUG((DBG_DVI|DBG_FILES, "opendvi: Trying `%s'\n", file));
-	if(access(file, R_OK) == 0)
-		return file;
-	/* try the given name */
-	file[len] = 0;
-	DEBUG((DBG_DVI|DBG_FILES, "opendvi: Trying `%s'\n", file));
-	if(access(file, R_OK) == 0)
-		return file;
-	mdvi_free(file);
-	return NULL;
-}
-
-int	mdvi_reload(DviContext *dvi, DviParams *np)
-{
-	DviContext *newdvi;
-	DviParams  *pars;
-	
-	/* close our file */
-	if(dvi->in) {
-		fclose(dvi->in);
-		dvi->in = NULL;
-	}
-
-	pars = np ? np : &dvi->params;
-	DEBUG((DBG_DVI, "%s: reloading\n", dvi->filename));	
-	
-	/* load it again */
-	newdvi = mdvi_init_context(pars, dvi->pagesel, dvi->filename);
-	if(newdvi == NULL) {
-		warning(_("could not reload `%s'\n"), dvi->filename);
-		return -1;
-	}
-
-	/* drop all our font references */
-	font_drop_chain(dvi->fonts);
-	/* destroy our font map */
-	if(dvi->fontmap)
-		mdvi_free(dvi->fontmap);
-	dvi->currfont = NULL;
-
-	/* and use the ones we just loaded */
-	dvi->fonts = newdvi->fonts;
-	dvi->fontmap = newdvi->fontmap;
-	dvi->nfonts = newdvi->nfonts;
-
-	/* copy the new information */
-	dvi->params = newdvi->params;
-	dvi->num = newdvi->num;
-	dvi->den = newdvi->den;
-	dvi->dvimag = newdvi->dvimag;
-	dvi->dviconv = newdvi->dviconv;
-	dvi->dvivconv = newdvi->dvivconv;
-	dvi->modtime = newdvi->modtime;
-
-	if(dvi->fileid) mdvi_free(dvi->fileid);
-	dvi->fileid = newdvi->fileid;
-		
-	dvi->dvi_page_w = newdvi->dvi_page_w;
-	dvi->dvi_page_h = newdvi->dvi_page_h;
-
-	mdvi_free(dvi->pagemap);
-	dvi->pagemap = newdvi->pagemap;
-	dvi->npages = newdvi->npages;
-	if(dvi->currpage > dvi->npages-1)
-		dvi->currpage = 0;
-		
-	mdvi_free(dvi->stack);
-	dvi->stack = newdvi->stack;
-	dvi->stacksize = newdvi->stacksize;
-
-	/* remove fonts that are not being used anymore */
-	font_free_unused(&dvi->device);
-		
-	mdvi_free(newdvi->filename);		
-	mdvi_free(newdvi);
-
-	DEBUG((DBG_DVI, "%s: reload successful\n", dvi->filename));
-	if(dvi->device.refresh)
-		dvi->device.refresh(dvi, dvi->device.device_data);
-	
-	return 0;
-}
-
-/* function to change parameters ia DVI context 
- * The DVI context is modified ONLY if this function is successful */
-int mdvi_configure(DviContext *dvi, DviParamCode option, ...)
-{
-	va_list	ap;
-	int	reset_all;
-	int	reset_font;
-	DviParams np;
-	
-	va_start(ap, option);
-
-	reset_font = 0;
-	reset_all  = 0;
-	np = dvi->params; /* structure copy */	
-	while(option != MDVI_PARAM_LAST) {
-		switch(option) {
-		case MDVI_SET_DPI:
-			np.dpi = np.vdpi = va_arg(ap, Uint);
-			reset_all = 1;
-			break;
-		case MDVI_SET_XDPI:
-			np.dpi = va_arg(ap, Uint);
-			reset_all = 1;
-			break;
-		case MDVI_SET_YDPI:
-			np.vdpi = va_arg(ap, Uint);
-			break;
-		case MDVI_SET_SHRINK:
-			np.hshrink = np.vshrink = va_arg(ap, Uint);
-			reset_font = MDVI_FONTSEL_GREY|MDVI_FONTSEL_BITMAP;
-			break;
-		case MDVI_SET_XSHRINK:
-			np.hshrink = va_arg(ap, Uint);
-			reset_font = MDVI_FONTSEL_GREY|MDVI_FONTSEL_BITMAP;
-			break;
-		case MDVI_SET_YSHRINK:
-			np.vshrink = va_arg(ap, Uint);
-			reset_font = MDVI_FONTSEL_GREY|MDVI_FONTSEL_BITMAP;
-			break;
-		case MDVI_SET_ORIENTATION:
-			np.orientation = va_arg(ap, DviOrientation);
-			reset_font = MDVI_FONTSEL_GLYPH;
-			break;
-		case MDVI_SET_GAMMA:
-			np.gamma = va_arg(ap, double);
-			reset_font = MDVI_FONTSEL_GREY;
-			break;
-		case MDVI_SET_DENSITY:
-			np.density = va_arg(ap, Uint);
-			reset_font = MDVI_FONTSEL_BITMAP;
-			break;
-		case MDVI_SET_MAGNIFICATION:
-			np.mag = va_arg(ap, double);
-			reset_all = 1;
-			break;
-		case MDVI_SET_DRIFT:
-			np.hdrift = np.vdrift = va_arg(ap, int);
-			break;
-		case MDVI_SET_HDRIFT:
-			np.hdrift = va_arg(ap, int);
-			break;
-		case MDVI_SET_VDRIFT:
-			np.vdrift = va_arg(ap, int);
-			break;
-		case MDVI_SET_FOREGROUND:
-			np.fg = va_arg(ap, Ulong);
-			reset_font = MDVI_FONTSEL_GREY;
-			break;
-		case MDVI_SET_BACKGROUND:
-			np.bg = va_arg(ap, Ulong);
-			reset_font = MDVI_FONTSEL_GREY;
-			break;
-		default:
-			break;
-		}
-		option = va_arg(ap, DviParamCode);
-	}
-	va_end(ap);
-	
-	/* check that all values make sense */
-	if(np.dpi <= 0 || np.vdpi <= 0)
-		return -1;
-	if(np.mag <= 0.0)
-		return -1;
-	if(np.density < 0)
-		return -1;
-	if(np.hshrink < 1 || np.vshrink < 1)
-		return -1;
-	if(np.hdrift < 0 || np.vdrift < 0)
-		return -1;	
-	if(np.fg == np.bg)
-		return -1;
-
-	/* 
-	 * If the dpi or the magnification change, we basically have to reload
-	 * the DVI file again from scratch.
-	 */
-
-	if(reset_all)
-		return (mdvi_reload(dvi, &np) == 0);
-
-	if(np.hshrink != dvi->params.hshrink) {
-		np.conv = dvi->dviconv;
-		if(np.hshrink)
-			np.conv /= np.hshrink;
-	}
-	if(np.vshrink != dvi->params.vshrink) {
-		np.vconv = dvi->dvivconv;
-		if(np.vshrink)
-			np.vconv /= np.vshrink;
-	}
-
-	if(reset_font) {
-		font_reset_chain_glyphs(&dvi->device, dvi->fonts, reset_font);
-	}
-	dvi->params = np;	
-	if((reset_font & MDVI_FONTSEL_GLYPH) && dvi->device.refresh) {
-		dvi->device.refresh(dvi, dvi->device.device_data);
-		return 0;
-	}
-
-	return 1;
-}
-/*
- * Read the initial data from the DVI file. If something is wrong with the 
- * file, we just spit out an error message and refuse to load the file, 
- * without giving any details. This makes sense because DVI files are ok
- * 99.99% of the time, and dvitype(1) can be used to check the other 0.01%.
- */
-DviContext *mdvi_init_context(DviParams *par, DviPageSpec *spec, const char *file)
-{
-	FILE	*p;
-	Int32	arg;
-	int	op;
-	long	offset;
-	int	n;
-	DviContext *dvi;
-	char	*filename;
-	int	pagecount;
-
-	/*
-	 * 1. Open the file and initialize the DVI context
-	 */	
-
-	filename = opendvi(file);
-	if(filename == NULL) {
-		perror(file);
-		return NULL;
-	}
-	p = fopen(filename, "r");
-	if(p == NULL) {
-		perror(file);
-		mdvi_free(filename);
-		return NULL;
-	}
-	dvi = xalloc(DviContext);
-	memzero(dvi, sizeof(DviContext));
-	dvi->pagemap = NULL;
-	dvi->filename = filename;
-	dvi->stack = NULL;
-	dvi->modtime = get_mtime(fileno(p));	
-	dvi->buffer.data = NULL;
-	dvi->pagesel = spec;
-	dvi->in = p; /* now we can use the dget*() functions */
-
-	/* 
-	 * 2. Read the preamble, extract scaling information, and 
-	 *    setup the DVI parameters.
-	 */
-
-	if(fuget1(p) != DVI_PRE)
-		goto bad_dvi;
-	if((arg = fuget1(p)) != DVI_ID) {
-		error(_("%s: unsupported DVI format (version %u)\n"),
-			file, arg);
-		goto error; /* jump to the end of this routine, 
-			     * where we handle errors */
-	}
-	/* get dimensions */
-	dvi->num = fuget4(p);
-	dvi->den = fuget4(p);
-	dvi->dvimag = fuget4(p);
-
-	/* check that these numbers make sense */
-	if(!dvi->num || !dvi->den || !dvi->dvimag)
-		goto bad_dvi;
-	
-	dvi->params.mag = 
-		(par->mag > 0 ? par->mag : (double)dvi->dvimag / 1000.0);
-	dvi->params.hdrift  = par->hdrift;
-	dvi->params.vdrift  = par->vdrift;
-	dvi->params.dpi     = par->dpi ? par->dpi : MDVI_DPI;
-	dvi->params.vdpi    = par->vdpi ? par->vdpi : par->dpi;
-	dvi->params.hshrink = par->hshrink;
-	dvi->params.vshrink = par->vshrink;
-	dvi->params.density = par->density;
-	dvi->params.gamma   = par->gamma;
-	dvi->params.conv    = (double)dvi->num / dvi->den;
-	dvi->params.conv   *= (dvi->params.dpi / 254000.0) * dvi->params.mag;
-	dvi->params.vconv   = (double)dvi->num / dvi->den;
-	dvi->params.vconv  *= (dvi->params.vdpi / 254000.0) * dvi->params.mag;
-	dvi->params.tfm_conv = (25400000.0 / dvi->num) *
-				((double)dvi->den / 473628672) / 16.0;
-	dvi->params.flags = par->flags;
-	dvi->params.orientation = par->orientation;
-	dvi->params.fg = par->fg;
-	dvi->params.bg = par->bg;
-
-	/* initialize colors */
-	dvi->curr_fg = par->fg;
-	dvi->curr_bg = par->bg;
-	dvi->color_stack = NULL;
-	dvi->color_top = 0;
-	dvi->color_size = 0;
-
-	/* pixel conversion factors */
-	dvi->dviconv = dvi->params.conv;
-	dvi->dvivconv = dvi->params.vconv;
-	if(dvi->params.hshrink)
-		dvi->params.conv /= dvi->params.hshrink;
-	if(dvi->params.vshrink)
-		dvi->params.vconv /= dvi->params.vshrink;
-
-	/* get the comment from the preamble */
-	n = fuget1(p);
-	dvi->fileid = mdvi_malloc(n + 1);
-	fread(dvi->fileid, 1, n, p);
-	dvi->fileid[n] = 0;
-	DEBUG((DBG_DVI, "%s: %s\n", filename, dvi->fileid));
-	
-	/*
-	 * 3. Read postamble, extract page information (number of
-	 *    pages, dimensions) and stack depth.
-	 */
-
-	/* jump to the end of the file */
-	if(fseek(p, (long)-1, SEEK_END) == -1)
-		goto error;	
-	for(n = 0; (op = fuget1(p)) == DVI_TRAILER; n++)
-		if(fseek(p, (long)-2, SEEK_CUR) < 0)
-			break;
-	if(op != arg || n < 4)
-		goto bad_dvi;
-	/* get the pointer to postamble */
-	fseek(p, (long)-5, SEEK_CUR);
-	arg = fuget4(p);
-	/* jump to it */
-	fseek(p, (long)arg, SEEK_SET);
-	if(fuget1(p) != DVI_POST)
-		goto bad_dvi;
-	offset = fuget4(p);
-	if(dvi->num != fuget4(p) || dvi->den != fuget4(p) ||
-	   dvi->dvimag != fuget4(p))
-		goto bad_dvi;
-	dvi->dvi_page_h = fuget4(p);
-	dvi->dvi_page_w = fuget4(p);
-	dvi->stacksize = fuget2(p);
-	dvi->npages = fuget2(p);
-	DEBUG((DBG_DVI, "%s: from postamble: stack depth %d, %d page%s\n",
-		filename, dvi->stacksize, dvi->npages, dvi->npages > 1 ? "s" : ""));
-	
-	/*
-	 * 4. Process font definitions.
-	 */
-
-	/* process font definitions */
-	dvi->nfonts = 0;
-	dvi->fontmap = NULL;
-	/* 
-	 * CAREFUL: here we need to use the dvi->buffer, but it might leave the
-	 * the file cursor in the wrong position after reading fonts (because of
-	 * buffering). It's ok, though, because after the font definitions we read
-	 * the page offsets, and we fseek() to the relevant part of the file with
-	 * SEEK_SET. Nothing is read after the page offsets.
-	 */
-	while((op = duget1(dvi)) != DVI_POST_POST) {
-		DviFontRef *ref;
-		
-		if(op == DVI_NOOP)
-			continue;
-		else if(op < DVI_FNT_DEF1 || op > DVI_FNT_DEF4)
-			goto error;
-		ref = define_font(dvi, op);
-		if(ref == NULL)
-			goto error;
-		ref->next = dvi->fonts;
-		dvi->fonts = ref;
-		dvi->nfonts++;
-	}
-	/* we don't need the buffer anymore */
-	dreset(dvi);
-	
-	if(op != DVI_POST_POST)
-		goto bad_dvi;
-	font_finish_definitions(dvi);
-	DEBUG((DBG_DVI, "%s: %d font%s required by this job\n",
-		filename, dvi->nfonts, dvi->nfonts > 1 ? "s" : ""));
-	dvi->findref = font_find_mapped;
-
-	/*
-	 * 5. Build the page map.
-	 */
-
-	dvi->pagemap = xnalloc(PageNum, dvi->npages);
-	memzero(dvi->pagemap, sizeof(PageNum) * dvi->npages);
-		
-	n = dvi->npages - 1;
-	pagecount = n;
-	while(offset != -1) {
-		int	i;
-		PageNum page;
-
-		fseek(p, offset, SEEK_SET);		
-		op = fuget1(p);
-		if(op != DVI_BOP || n < 0)
-			goto bad_dvi;
-		for(i = 1; i <= 10; i++)
-			page[i] = fsget4(p);
-		page[0] = offset;
-		offset = fsget4(p);
-		/* check if the page is selected */
-		if(spec && mdvi_page_selected(spec, page, n) == 0) {
-			DEBUG((DBG_DVI, "Page %d (%ld.%ld.%ld.%ld.%ld.%ld.%ld.%ld.%ld.%ld) ignored by request\n",
-			n, page[1], page[2], page[3], page[4], page[5],
-			   page[6], page[7], page[8], page[9], page[10]));
-		} else {
-			memcpy(&dvi->pagemap[pagecount], page, sizeof(PageNum));
-			pagecount--;
-		}
-		n--;
-	}
-	pagecount++;
-	if(pagecount >= dvi->npages) {
-		error(_("no pages selected\n"));
-		goto error;
-	}
-	if(pagecount) {
-		DEBUG((DBG_DVI, "%d of %d pages selected\n",
-			dvi->npages - pagecount, dvi->npages));
-		dvi->npages -= pagecount;
-		memmove(dvi->pagemap, &dvi->pagemap[pagecount], 
-			dvi->npages * sizeof(PageNum));
-	}
-
-	/*
-	 * 6. Setup stack, initialize device functions
-	 */
-
-	dvi->curr_layer = 0;
-	dvi->stack = xnalloc(DviState, dvi->stacksize + 8);
-
-	dvi->device.draw_glyph   = dummy_draw_glyph;
-	dvi->device.draw_rule    = dummy_draw_rule;
-	dvi->device.alloc_colors = dummy_alloc_colors;
-	dvi->device.create_image = dummy_create_image;
-	dvi->device.free_image   = dummy_free_image;
-	dvi->device.dev_destroy  = dummy_dev_destroy;
-	dvi->device.put_pixel    = dummy_dev_putpixel;
-	dvi->device.refresh      = dummy_dev_refresh;
-	dvi->device.set_color    = dummy_dev_set_color;
-	dvi->device.device_data  = NULL;
-
-	DEBUG((DBG_DVI, "%s read successfully\n", filename));
-	return dvi;
-
-bad_dvi:
-	error(_("%s: File corrupted, or not a DVI file\n"), file);
-error:
-	/* if we came from the font definitions, this will be non-trivial */
-	dreset(dvi);
-	mdvi_destroy_context(dvi);
-	return NULL;
-}
-
-void	mdvi_destroy_context(DviContext *dvi)
-{
-	if(dvi->device.dev_destroy)
-		dvi->device.dev_destroy(dvi->device.device_data);
-	/* release all fonts */
-	if(dvi->fonts) {
-		font_drop_chain(dvi->fonts);
-		font_free_unused(&dvi->device);
-	}
-	if(dvi->fontmap)
-		mdvi_free(dvi->fontmap);
-	if(dvi->filename)
-		mdvi_free(dvi->filename);
-	if(dvi->stack)
-		mdvi_free(dvi->stack);
-	if(dvi->pagemap)
-		mdvi_free(dvi->pagemap);
-	if(dvi->fileid)
-		mdvi_free(dvi->fileid);
-	if(dvi->in)
-		fclose(dvi->in);
-	if(dvi->buffer.data && !dvi->buffer.frozen)
-		mdvi_free(dvi->buffer.data);
-	if(dvi->color_stack)
-		mdvi_free(dvi->color_stack);
-	
-	mdvi_free(dvi);
-}
-
-void	mdvi_setpage(DviContext *dvi, int pageno)
-{
-	if(pageno < 0)
-		pageno = 0;
-	if(pageno > dvi->npages-1)
-		pageno = dvi->npages - 1;
-	dvi->currpage = pageno;
-}
-
-static int	mdvi_run_macro(DviContext *dvi, Uchar *macro, size_t len)
-{
-	DviFontRef *curr, *fonts;
-	DviBuffer saved_buffer;
-	FILE	*saved_file;
-	int	opcode;
-	int	oldtop;
-
-	dvi->depth++;	
-	push(dvi, DVI_PUSH);
-	dvi->pos.w = 0;
-	dvi->pos.x = 0;
-	dvi->pos.y = 0;
-	dvi->pos.z = 0;
-	
-	/* save our state */
-	curr = dvi->currfont;
-	fonts = dvi->fonts;
-	saved_buffer = dvi->buffer;
-	saved_file = dvi->in;
-	dvi->currfont = curr->ref->subfonts;
-	dvi->fonts = curr->ref->subfonts;
-	dvi->buffer.data = macro;
-	dvi->buffer.pos = 0;
-	dvi->buffer.length = len;
-	dvi->buffer.frozen = 1;
-	dvi->in = NULL;
-	oldtop = dvi->stacktop;
-
-	/* execute commands */
-	while((opcode = duget1(dvi)) != DVI_EOP) {
-		if(dvi_commands[opcode](dvi, opcode) < 0)
-			break;
-	}
-	if(opcode != DVI_EOP)
-		dviwarn(dvi, _("%s: vf macro had errors\n"), 
-			curr->ref->fontname);
-	if(dvi->stacktop != oldtop)
-		dviwarn(dvi, _("%s: stack not empty after vf macro\n"),
-			curr->ref->fontname);
-
-	/* restore things */
-	pop(dvi, DVI_POP);
-	dvi->currfont = curr;
-	dvi->fonts = fonts;
-	dvi->buffer = saved_buffer;
-	dvi->in = saved_file;
-	dvi->depth--;
-
-	return (opcode != DVI_EOP ? -1 : 0);
-}
-
-int	mdvi_dopage(DviContext *dvi, int pageno)
-{
-	int	op;
-	int	ppi;
-	int	reloaded = 0;
-
-again:	
-	if(dvi->in == NULL) {
-		/* try reopening the file */
-		dvi->in = fopen(dvi->filename, "r");
-		if(dvi->in == NULL) {
-			warning(_("%s: could not reopen file (%s)\n"),
-				dvi->filename,
-				strerror(errno));
-			return -1;
-		}
-		DEBUG((DBG_FILES, "reopen(%s) -> Ok\n", dvi->filename));
-	}
-	
-	/* check if we need to reload the file */
-	if(!reloaded && get_mtime(fileno(dvi->in)) > dvi->modtime) {
-		mdvi_reload(dvi, &dvi->params);
-		/* we have to reopen the file, again */
-		reloaded = 1;
-		goto again;
-	}
-	
-	if(pageno < 0 || pageno > dvi->npages-1) {
-		error(_("%s: page %d out of range\n"),
-			dvi->filename, pageno);
-		return -1;
-	}
-	
-	fseek(dvi->in, (long)dvi->pagemap[pageno][0], SEEK_SET);
-	if((op = fuget1(dvi->in)) != DVI_BOP) {
-		error(_("%s: bad offset at page %d\n"),
-			dvi->filename, pageno+1);
-		return -1;
-	}
-	
-	/* skip bop */
-	fseek(dvi->in, (long)44, SEEK_CUR);
-
-	/* reset state */
-	dvi->currfont = NULL;
-	memzero(&dvi->pos, sizeof(DviState));
-	dvi->stacktop = 0;
-	dvi->currpage = pageno;
-	dvi->curr_layer = 0;
-	
-	if(dvi->buffer.data && !dvi->buffer.frozen)
-		mdvi_free(dvi->buffer.data);
-
-	/* reset our buffer */
-	dvi->buffer.data   = NULL;
-	dvi->buffer.length = 0;
-	dvi->buffer.pos    = 0;
-	dvi->buffer.frozen = 0;
-
-#if 0 /* make colors survive page breaks */
-	/* reset color stack */
-	mdvi_reset_color(dvi);
-#endif
-		
-	/* set max horizontal and vertical drift (from dvips) */
-	if(dvi->params.hdrift < 0) {
-		ppi = dvi->params.dpi / dvi->params.hshrink; /* shrunk pixels per inch */
-		if(ppi < 600)
-			dvi->params.hdrift = ppi / 100;
-		else if(ppi < 1200)
-			dvi->params.hdrift = ppi / 200;
-		else
-			dvi->params.hdrift = ppi / 400;
-	}
-	if(dvi->params.vdrift < 0) {
-		ppi = dvi->params.vdpi / dvi->params.vshrink; /* shrunk pixels per inch */
-		if(ppi < 600)
-			dvi->params.vdrift = ppi / 100;
-		else if(ppi < 1200)
-			dvi->params.vdrift = ppi / 200;
-		else
-			dvi->params.vdrift = ppi / 400;
-	}
-
-	dvi->params.thinsp   = FROUND(0.025 * dvi->params.dpi / dvi->params.conv);
-	dvi->params.vsmallsp = FROUND(0.025 * dvi->params.vdpi / dvi->params.vconv);
-		
-	/* execute all the commands in the page */
-	while((op = duget1(dvi)) != DVI_EOP) {
-		if(dvi_commands[op](dvi, op) < 0)
-			break;
-	}
-	
-	fflush(stdout);
-	fflush(stderr);
-	if(op != DVI_EOP)
-		return -1;
-	if(dvi->stacktop)
-		dviwarn(dvi, _("stack not empty at end of page\n"));
-	return 0;
-}
-
-static int inline move_vertical(DviContext *dvi, int amount)
-{
-	int	rvv;
-	
-	dvi->pos.v += amount;
-	rvv = vpixel_round(dvi, dvi->pos.v);
-	if(!dvi->params.vdrift)
-		return rvv;
-	if(amount > dvi->params.vsmallsp || amount <= -dvi->params.vsmallsp)
-		return rvv;
-	else {
-		int	newvv;
-		
-		newvv = dvi->pos.vv + vpixel_round(dvi, amount);
-		if(rvv - newvv > dvi->params.vdrift)
-			return rvv - dvi->params.vdrift;
-		else if(newvv - rvv > dvi->params.vdrift)
-			return rvv + dvi->params.vdrift;
-		else
-			return newvv;
-	}	
-}
-
-static int inline move_horizontal(DviContext *dvi, int amount)
-{
-	int	rhh;
-	
-	dvi->pos.h += amount;
-	rhh = pixel_round(dvi, dvi->pos.h);
-	if(!dvi->params.hdrift)
-		return rhh;
-	else if(amount > dvi->params.thinsp || amount <= -6 * dvi->params.thinsp)
-		return rhh;
-	else {
-		int	newhh;
-		
-		newhh = dvi->pos.hh + pixel_round(dvi, amount);
-		if(rhh - newhh > dvi->params.hdrift)
-			return rhh - dvi->params.hdrift;
-		else if(newhh - rhh > dvi->params.hdrift)
-			return rhh + dvi->params.hdrift;
-		else
-			return newhh;
-	}	
-}
-
-static void inline fix_after_horizontal(DviContext *dvi)
-{
-	int	rhh;
-
-	rhh = pixel_round(dvi, dvi->pos.h);
-	if(!dvi->params.hdrift)
-		dvi->pos.hh = rhh;
-	else if(rhh - dvi->pos.hh > dvi->params.hdrift)
-		dvi->pos.hh = rhh - dvi->params.hdrift;
-	else if(dvi->pos.hh - rhh > dvi->params.hdrift)
-		dvi->pos.hh = rhh + dvi->params.hdrift;
-}
-
-/* commands */
-
-#define DBGSUM(a,b,c) \
-	(a), (b) > 0 ? '+' : '-', \
-	(b) > 0 ? (b) : -(b), (c)
-
-/*
- * Draw rules with some sort of antialias support. Usefult for high-rate
- * scale factors.
- */ 
-
-static void draw_shrink_rule (DviContext *dvi, int x, int y, Uint w, Uint h, int f)
-{		
-	int hs, vs, npixels;
-	Ulong fg, bg;
-	Ulong *pixels;
-	
-	hs = dvi->params.hshrink;
-	vs = dvi->params.vshrink;
-	fg = dvi->params.fg;
-	bg = dvi->params.bg;
-
-	if (MDVI_ENABLED(dvi, MDVI_PARAM_ANTIALIASED)) {
-		npixels = vs * hs + 1;
-		pixels = get_color_table(&dvi->device, npixels, bg, fg,
-					 dvi->params.gamma, dvi->params.density);
-	
-		if (pixels) {
-		    int color;
-		    
-		    /*  Lines with width 1 should be perfectly visible
-		     *  in shrink about 15. That is the reason of constant
-		     */
-		     
-		    color = (pow (vs / h * hs, 2) + pow (hs / w * vs, 2)) / 225;
-		    if (color < npixels) {
-		        fg = pixels[color];
-    		    } else {	
-			fg = pixels[npixels - 1];
-		    }
-		}
-        }
-
-	mdvi_push_color (dvi, fg, bg);
-	dvi->device.draw_rule(dvi, x, y, w, h, f);
-	mdvi_pop_color (dvi);
-	
-	return;
-}
-
-/* 
- * The only commands that actually draw something are:
- *   set_char, set_rule
- */
-
-static void draw_box(DviContext *dvi, DviFontChar *ch)
-{
-	DviGlyph *glyph = NULL;
-	int	x, y, w, h;
-		
-	if(!MDVI_GLYPH_UNSET(ch->shrunk.data))
-		glyph = &ch->shrunk;
-	else if(!MDVI_GLYPH_UNSET(ch->grey.data))
-		glyph = &ch->grey;
-	else if(!MDVI_GLYPH_UNSET(ch->glyph.data))
-		glyph = &ch->glyph;
-	if(glyph == NULL)
-		return;
-	x = glyph->x;
-	y = glyph->y;
-	w = glyph->w;
-	h = glyph->h;
-	/* this is bad -- we have to undo the orientation */
-	switch(dvi->params.orientation) {
-	case MDVI_ORIENT_TBLR:
-		break;
-	case MDVI_ORIENT_TBRL:
-		x = w - x;
-		break;
-	case MDVI_ORIENT_BTLR:
-		y = h - y;
-		break;
-	case MDVI_ORIENT_BTRL:
-		x = w - x;
-		y = h - y;
-		break;
-	case MDVI_ORIENT_RP90:
-		SWAPINT(w, h);
-		SWAPINT(x, y);
-		x = w - x;
-		break;
-	case MDVI_ORIENT_RM90:
-		SWAPINT(w, h);
-		SWAPINT(x, y);
-		y = h - y;
-		break;
-	case MDVI_ORIENT_IRP90:
-		SWAPINT(w, h);
-		SWAPINT(x, y);
-		break;
-	case MDVI_ORIENT_IRM90:
-		SWAPINT(w, h);
-		SWAPINT(x, y);
-		x = w - x;
-		y = h - y;
-		break;
-	}
-		
-	draw_shrink_rule(dvi, dvi->pos.hh - x, dvi->pos.vv - y, w, h, 1);
-}
-
-int	set_char(DviContext *dvi, int opcode)
-{
-	int	num;
-	int	h;
-	int	hh;
-	DviFontChar *ch;
-	DviFont	*font;
-	
-	if(opcode < 128)
-		num = opcode;
-	else
-		num = dugetn(dvi, opcode - DVI_SET1 + 1);
-	if(dvi->currfont == NULL) {
-		dvierr(dvi, _("no default font set yet\n"));
-		return -1;
-	}
-	font = dvi->currfont->ref;
-	ch = font_get_glyph(dvi, font, num);
-	if(ch == NULL || ch->missing) {
-		/* try to display something anyway */
-		ch = FONTCHAR(font, num);
-		if(!glyph_present(ch)) {
-			dviwarn(dvi, 
-			_("requested character %d does not exist in `%s'\n"), 
-				num, font->fontname);
-			return 0;
-		}
-		draw_box(dvi, ch);
-	} else if(dvi->curr_layer <= dvi->params.layer) {
-		if(ISVIRTUAL(font))
-			mdvi_run_macro(dvi, (Uchar *)font->private + 
-				ch->offset, ch->width);
-		else if(ch->width && ch->height)
-			dvi->device.draw_glyph(dvi, ch, 
-				dvi->pos.hh, dvi->pos.vv);
-	}
-	if(opcode >= DVI_PUT1 && opcode <= DVI_PUT4) {
-		SHOWCMD((dvi, "putchar", opcode - DVI_PUT1 + 1,
-			"char %d (%s)\n",
-			num, dvi->currfont->ref->fontname));
-	} else {
-		h = dvi->pos.h + ch->tfmwidth;
-		hh = dvi->pos.hh + pixel_round(dvi, ch->tfmwidth);
-		SHOWCMD((dvi, "setchar", num, "(%d,%d) h:=%d%c%d=%d, hh:=%d (%s)\n",
-			dvi->pos.hh, dvi->pos.vv,
-			DBGSUM(dvi->pos.h, ch->tfmwidth, h), hh,
-			font->fontname));
-		dvi->pos.h  = h;
-		dvi->pos.hh = hh;
-		fix_after_horizontal(dvi);
-	}
-	
-	return 0;
-}
-
-int	set_rule(DviContext *dvi, int opcode)
-{
-	Int32	a, b;
-	int	h, w;
-	
-	a = dsget4(dvi);
-	b = dsget4(dvi); w = rule_round(dvi, b);
-	if(a > 0 && b > 0) {
-		h = vrule_round(dvi, a); 
-		SHOWCMD((dvi, opcode == DVI_SET_RULE ? "setrule" : "putrule", -1,
-			"width %d, height %d (%dx%d pixels)\n",
-			b, a, w, h));
-		/* the `draw' functions expect the origin to be at the top left
-		 * corner of the rule, not the bottom left, as in DVI files */
-		if(dvi->curr_layer <= dvi->params.layer) {
-			draw_shrink_rule(dvi,
-					 dvi->pos.hh, dvi->pos.vv - h + 1, w, h, 1);
-		}
-	} else { 
-		SHOWCMD((dvi, opcode == DVI_SET_RULE ? "setrule" : "putrule", -1,
-			"(moving left only, by %d)\n", b));
-	}
-			
-	if(opcode == DVI_SET_RULE) {
-		dvi->pos.h  += b;
-		dvi->pos.hh += w;
-		fix_after_horizontal(dvi);
-	}
-	return 0;
-}
-
-int	no_op(DviContext *dvi, int opcode)
-{
-	SHOWCMD((dvi, "noop", -1, ""));
-	return 0;
-}
-
-int	push(DviContext *dvi, int opcode)
-{
-	if(dvi->stacktop == dvi->stacksize) {
-		if(!dvi->depth)
-			dviwarn(dvi, _("enlarging stack\n"));
-		dvi->stacksize += 8;
-		dvi->stack = xresize(dvi->stack,
-			DviState, dvi->stacksize);
-	}
-	memcpy(&dvi->stack[dvi->stacktop], &dvi->pos, sizeof(DviState));
-	SHOWCMD((dvi, "push", -1,
-		"level %d: (h=%d,v=%d,w=%d,x=%d,y=%d,z=%d,hh=%d,vv=%d)\n",
-		dvi->stacktop, 
-		dvi->pos.h, dvi->pos.v, dvi->pos.w, dvi->pos.x,
-		dvi->pos.y, dvi->pos.z, dvi->pos.hh, dvi->pos.vv));
-	dvi->stacktop++;
-	return 0;
-}
-
-int	pop(DviContext *dvi, int opcode)
-{
-	if(dvi->stacktop == 0) {
-		dvierr(dvi, _("stack underflow\n"));
-		return -1;
-	}
-	memcpy(&dvi->pos, &dvi->stack[dvi->stacktop-1], sizeof(DviState));
-	SHOWCMD((dvi, "pop", -1,
-		"level %d: (h=%d,v=%d,w=%d,x=%d,y=%d,z=%d,hh=%d,vv=%d)\n",
-		dvi->stacktop, 
-		dvi->pos.h, dvi->pos.v, dvi->pos.w, dvi->pos.x,
-		dvi->pos.y, dvi->pos.z, dvi->pos.hh, dvi->pos.vv));
-	dvi->stacktop--;
-	return 0;
-}
-
-int	move_right(DviContext *dvi, int opcode)
-{
-	Int32	arg;
-	int	h, hh;
-	
-	arg = dsgetn(dvi, opcode - DVI_RIGHT1 + 1);
-	h = dvi->pos.h;
-	hh = move_horizontal(dvi, arg);
-	SHOWCMD((dvi, "right", opcode - DVI_RIGHT1 + 1,
-		"%d h:=%d%c%d=%d, hh:=%d\n",
-		arg, DBGSUM(h, arg, dvi->pos.h), hh));
-	dvi->pos.hh = hh;
-	return 0;
-}
-
-int	move_down(DviContext *dvi, int opcode)
-{
-	Int32	arg;
-	int	v, vv;
-	
-	arg = dsgetn(dvi, opcode - DVI_DOWN1 + 1);
-	v = dvi->pos.v;
-	vv = move_vertical(dvi, arg);
-	SHOWCMD((dvi, "down", opcode - DVI_DOWN1 + 1,
-		"%d v:=%d%c%d=%d, vv:=%d\n",
-		arg, DBGSUM(v, arg, dvi->pos.v), vv));
-	dvi->pos.vv = vv;
-	return 0;
-}
-
-int	move_w(DviContext *dvi, int opcode)
-{
-	int	h, hh;
-	
-	if(opcode != DVI_W0)
-		dvi->pos.w = dsgetn(dvi, opcode - DVI_W0);
-	h = dvi->pos.h;
-	hh = move_horizontal(dvi, dvi->pos.w);
-	SHOWCMD((dvi, "w", opcode - DVI_W0,
-		"%d h:=%d%c%d=%d, hh:=%d\n",
-		dvi->pos.w, DBGSUM(h, dvi->pos.w, dvi->pos.h), hh));
-	dvi->pos.hh = hh;
-	return 0;
-}
-
-int	move_x(DviContext *dvi, int opcode)
-{
-	int	h, hh;
-	
-	if(opcode != DVI_X0)
-		dvi->pos.x = dsgetn(dvi, opcode - DVI_X0);
-	h = dvi->pos.h;
-	hh = move_horizontal(dvi, dvi->pos.x);
-	SHOWCMD((dvi, "x", opcode - DVI_X0,
-		"%d h:=%d%c%d=%d, hh:=%d\n", 
-		dvi->pos.x, DBGSUM(h, dvi->pos.x, dvi->pos.h), hh));
-	dvi->pos.hh = hh;
-	return 0;
-}
-
-int	move_y(DviContext *dvi, int opcode)
-{
-	int	v, vv;
-	
-	if(opcode != DVI_Y0)
-		dvi->pos.y = dsgetn(dvi, opcode - DVI_Y0);
-	v = dvi->pos.v;
-	vv = move_vertical(dvi, dvi->pos.y);
-	SHOWCMD((dvi, "y", opcode - DVI_Y0,
-		"%d h:=%d%c%d=%d, hh:=%d\n", 
-		dvi->pos.y, DBGSUM(v, dvi->pos.y, dvi->pos.v), vv));
-	dvi->pos.vv = vv;
-	return 0;
-}
-
-int	move_z(DviContext *dvi, int opcode)
-{
-	int	v, vv;
-
-	if(opcode != DVI_Z0)
-		dvi->pos.z = dsgetn(dvi, opcode - DVI_Z0);
-	v = dvi->pos.v;
-	vv = move_vertical(dvi, dvi->pos.z);
-	SHOWCMD((dvi, "z", opcode - DVI_Z0,
-		"%d h:=%d%c%d=%d, hh:=%d\n", 
-		dvi->pos.z, DBGSUM(v, dvi->pos.z, dvi->pos.v), vv));
-	dvi->pos.vv = vv;
-	return 0;
-}
-
-int	sel_font(DviContext *dvi, int opcode)
-{
-	DviFontRef *ref;
-	int	ndx;
-	
-	ndx = opcode - DVI_FNT_NUM0;
-	if(dvi->depth)
-		ref = font_find_flat(dvi, ndx);
-	else
-		ref = dvi->findref(dvi, ndx);
-	if(ref == NULL) {
-		dvierr(dvi, _("font %d is not defined\n"),
-			opcode - DVI_FNT_NUM0);
-		return -1;
-	}
-	SHOWCMD((dvi, "fntnum", opcode - DVI_FNT_NUM0,
-		"current font is %s\n",
-		ref->ref->fontname));
-	dvi->currfont = ref;
-	return 0;
-}
-
-int	sel_fontn(DviContext *dvi, int opcode)
-{
-	Int32	arg;
-	DviFontRef *ref;
-	
-	arg = dugetn(dvi, opcode - DVI_FNT1 + 1);
-	if(dvi->depth)
-		ref = font_find_flat(dvi, arg);
-	else
-		ref = dvi->findref(dvi, arg);
-	if(ref == NULL) {
-		dvierr(dvi, _("font %d is not defined\n"), arg);
-		return -1;
-	}
-	SHOWCMD((dvi, "fnt", opcode - DVI_FNT1 + 1,
-		"current font is %s (id %d)\n", 
-		ref->ref->fontname, arg));
-	dvi->currfont = ref;
-	return 0;
-}
-
-int	special(DviContext *dvi, int opcode)
-{
-	char	*s;
-	Int32	arg;
-	
-	arg = dugetn(dvi, opcode - DVI_XXX1 + 1);
-	s = mdvi_malloc(arg + 1);
-	dread(dvi, s, arg);
-	s[arg] = 0;
-	mdvi_do_special(dvi, s);
-	SHOWCMD((dvi, "XXXX", opcode - DVI_XXX1 + 1,
-		"[%s]", s));
-	mdvi_free(s);
-	return 0;
-}
-
-int	def_font(DviContext *dvi, int opcode)
-{
-	DviFontRef *ref;
-	Int32	arg;
-	
-	arg = dugetn(dvi, opcode - DVI_FNT_DEF1 + 1);
-	if(dvi->depth)
-		ref = font_find_flat(dvi, arg);
-	else
-		ref = dvi->findref(dvi, arg);
-	/* skip the rest */
-	dskip(dvi, 12);
-	dskip(dvi, duget1(dvi) + duget1(dvi));
-	if(ref == NULL) {
-		dvierr(dvi, _("font %d is not defined in postamble\n"), arg);
-		return -1;
-	}
-	SHOWCMD((dvi, "fntdef", opcode - DVI_FNT_DEF1 + 1,
-		"%d -> %s (%d links)\n",
-		ref->fontid, ref->ref->fontname,
-		ref->ref->links));
-	return 0;
-}
-
-int	unexpected(DviContext *dvi, int opcode)
-{
-	dvierr(dvi, _("unexpected opcode %d\n"), opcode);
-	return -1;
-}
-
-int	undefined(DviContext *dvi, int opcode)
-{
-	dvierr(dvi, _("undefined opcode %d\n"), opcode);
-	return -1;
-}
-
--
cgit v0.9.1