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-rw-r--r--Build/source/texk/xdvik/dvi-draw.h160
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diff --git a/Build/source/texk/xdvik/dvi-draw.h b/Build/source/texk/xdvik/dvi-draw.h
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+/*
+ * Copyright (c) 1990-2004 Paul Vojta and the xdvik development team
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * PAUL VOJTA OR ANY OTHER AUTHOR OF THIS SOFTWARE BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef DVI_DRAW_H_
+#define DVI_DRAW_H_
+
+#include "xdvi-config.h"
+#include "xdvi.h"
+
+
+extern void prescan(FILE *fp);
+
+
+/* forward declarations */
+struct font;
+struct tn;
+
+/* this information is saved when using virtual fonts */
+struct drawinf {
+ struct framedata data;
+ struct font *fontp;
+ set_char_proc set_char_p;
+ unsigned long tn_table_len;
+ struct font **tn_table;
+ struct tn *tn_head;
+ ubyte *pos, *end; /* pointers to a scan buffer defined in dvi-draw.c */
+ struct font *virtual;
+#ifdef TEXXET
+ int dir;
+#endif
+};
+
+struct src_parsed_special {
+ int line;
+ int col;
+ char *filename;
+ size_t filename_len;
+};
+extern void src_parse(const char *str, int str_len, struct src_parsed_special *parsed);
+
+/*
+ * pixel_conv is currently used only for converting absolute positions
+ * to pixel values; although normally it should be
+ *
+ * ((int) ((x) / currwin.shrinkfactor + (1 << 15) >> 16)),
+ *
+ * the rounding is achieved instead by moving the constant 1 << 15 to
+ * PAGE_OFFSET in dvi-draw.c.
+ */
+
+#define pixel_conv(x) ((int) ((x) / currwin.shrinkfactor >> 16))
+#define pixel_round(x) ((int) ROUNDUP(x, currwin.shrinkfactor << 16))
+
+/* entries below with the characters 'dvi' in them are actually stored in
+ scaled pixel units */
+
+#define DVI_H currinf.data.dvi_h
+#define PXL_H pixel_conv(currinf.data.dvi_h)
+#define DVI_V currinf.data.dvi_v
+#define PXL_V currinf.data.pxl_v
+#define WW currinf.data.w
+#define XX currinf.data.x
+#define YY currinf.data.y
+#define ZZ currinf.data.z
+
+extern void draw_page(void);
+extern void source_reverse_search(int, int, wide_bool);
+extern void source_special_show(wide_bool);
+extern void source_forward_search(const char *);
+
+extern void anchor_search(const char *str);
+
+#ifdef T1LIB
+extern void init_t1(void);
+extern void add_T1_mapentry(int lineno, const char *mapfile, const char *name, const char *file, const char *vec, char *psec);
+extern void read_T1_char(struct font *, wide_ubyte);
+extern int find_T1_font(const char *);
+extern setcharRetvalT set_t1_char(
+#ifdef TEXXET
+ wide_ubyte cmd,
+#endif
+ wide_ubyte ch);
+#endif /* T1LIB */
+
+
+/*
+ this is needed by any program that wants to use spcl_scan,
+ since the buffer is supposed to be of that length.
+*/
+#ifndef DVI_BUFFER_LEN
+#define DVI_BUFFER_LEN 2048
+#endif
+
+extern long text_do_char(FILE *fp, struct scan_info *info, wide_ubyte ch);
+extern Boolean spcl_scan(Boolean(*spcl_proc) (char *str, int str_len, void *data), void *data, Boolean return_if_found, FILE *fp);
+
+extern void geom_scan_part(long(*char_proc)(FILE *, struct scan_info *, wide_ubyte),
+ FILE *fp, struct scan_info *info, struct frame *min_frame, double current_dimconv);
+
+extern void geom_scan(long(*char_proc)(FILE *, struct scan_info *, wide_ubyte),
+ FILE *fp, struct scan_info *info, int pageno);
+
+extern off_t save_file_status(FILE *fp, struct drawinf *currinf_save, ubyte *maxchar_save);
+extern void reinit_text_scan(void);
+extern void restore_file_status(FILE *fp, struct drawinf currinf_save, ubyte maxchar_save, off_t pos_save);
+
+void htex_do_special(const char *str, size_t len);
+
+extern setcharRetvalT set_char(
+#ifdef TEXXET
+ wide_ubyte cmd,
+#endif
+ wide_ubyte ch);
+extern setcharRetvalT load_n_set_char(
+#ifdef TEXXET
+ wide_ubyte cmd,
+#endif
+ wide_ubyte ch);
+extern setcharRetvalT set_vf_char(
+#ifdef TEXXET
+ wide_ubyte cmd,
+#endif
+ wide_ubyte ch);
+
+#ifdef GREY
+void init_plane_masks(void);
+#endif
+
+#if COLOR
+struct rgb; /* forward declaration */
+
+Pixel alloc_color(const struct rgb *, Pixel);
+void do_color_change(void);
+#elif GREY
+void init_pix(void);
+#endif
+
+void dvi_fmt_error(const char *message, ...);
+
+#endif /* DVI_DRAW_H_ */