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changed bitblt_table_gen.c to generate both a header and a C source file (bitblt_tables.[ch]).

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This commit is contained in:
Eric Smith
2003-03-12 06:39:22 +00:00
parent 65e20c5448
commit 47043c1e69
2 changed files with 60 additions and 15 deletions
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18
Makefile
View File

@@ -1,6 +1,6 @@
# t2p: build a PDF file out of one or more TIFF Class F Group 4 files
# Makefile
# $Id: Makefile,v 1.21 2003/03/10 01:49:49 eric Exp $
# $Id: Makefile,v 1.22 2003/03/11 22:39:22 eric Exp $
# Copyright 2001, 2002, 2003 Eric Smith <eric@brouhaha.com>
#
# This program is free software; you can redistribute it and/or modify
@@ -65,7 +65,7 @@ CSRCS = t2p.c semantics.c \
bitblt.c bitblt_table_gen.c bitblt_g4.c g4_table_gen.c \
pdf.c pdf_util.c pdf_prim.c pdf_bookmark.c pdf_name_tree.c pdf_g4.c
OSRCS = scanner.l parser.y
HDRS = t2p.h semantics.h bitblt.h \
HDRS = t2p.h semantics.h bitblt.h bitblt_tables.h \
pdf.h pdf_private.h pdf_util.h pdf_prim.h pdf_name_tree.h
MISC = COPYING Makefile
@@ -73,9 +73,9 @@ DISTFILES = $(MISC) $(HDRS) $(CSRCS) $(OSRCS)
DISTNAME = $(PACKAGE)-$(VERSION)
AUTO_CSRCS = scanner.c parser.tab.c
AUTO_HDRS = parser.tab.h bitblt_tables.h g4_tables.h
AUTO_MISC = parser.output
AUTO_CSRCS = scanner.c parser.tab.c bitblt_tables.c
AUTO_HDRS = parser.tab.h g4_tables.h
AUTO_MISC = parser.output bitblt_tables.h
-include Maketest
@@ -84,7 +84,8 @@ AUTO_MISC = parser.output
all: $(TARGETS) $(TEST_TARGETS)
t2p: t2p.o scanner.o semantics.o parser.tab.o bitblt.o bitblt_g4.o \
t2p: t2p.o scanner.o semantics.o parser.tab.o \
bitblt.o bitblt_g4.o bitblt_tables.o \
pdf.o pdf_util.o pdf_prim.o pdf_bookmark.o pdf_name_tree.o \
pdf_g4.o
$(LINK.o) $^ $(LOADLIBES) $(LDLIBS) -o $@
@@ -94,7 +95,10 @@ endif
bitblt_tables.h: bitblt_table_gen
./bitblt_table_gen >bitblt_tables.h
./bitblt_table_gen -h >bitblt_tables.h
bitblt_tables.c: bitblt_table_gen
./bitblt_table_gen -c >bitblt_tables.c
bitblt_table_gen: bitblt_table_gen.o

57
bitblt_table_gen.c
View File

@@ -4,7 +4,7 @@
* will be compressed using ITU-T T.6 (G4) fax encoding.
*
* bitblt table generator
* $Id: bitblt_table_gen.c,v 1.4 2003/03/05 12:44:33 eric Exp $
* $Id: bitblt_table_gen.c,v 1.5 2003/03/11 22:39:22 eric Exp $
* Copyright 2003 Eric Smith <eric@brouhaha.com>
*
* This program is free software; you can redistribute it and/or modify
@@ -24,13 +24,23 @@
*/
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
void gen_bit_reverse_table (void)
void gen_bit_reverse_table (bool header)
{
int i, j;
printf ("static const uint8_t bit_reverse_byte [0x100] =\n");
if (header)
printf ("extern ");
printf ("const uint8_t bit_reverse_byte [0x100]");
if (header)
{
printf (";\n");
return;
}
printf (" =\n");
printf ("{\n");
for (i = 0; i < 0x100; i++)
{
@@ -73,11 +83,19 @@ int count_run (int byte, int start_bit, int desired_val)
}
void gen_run_length_table (int val, char *name)
void gen_run_length_table (bool header, int val, char *name)
{
int i, j;
printf ("static const uint8_t %s [8][256] =\n", name);
if (header)
printf ("extern ");
printf ("const uint8_t %s [8][256]", name);
if (header)
{
printf (";\n");
return;
}
printf (" =\n");
printf ("{\n");
for (i = 0; i < 8; i++)
{
@@ -105,15 +123,38 @@ void gen_run_length_table (int val, char *name)
int main (int argc, char *argv[])
{
bool header;
if (argc != 2)
{
fprintf (stderr, "wrong arg count\n");
exit (2);
}
if (strcmp (argv [1], "-h") == 0)
header = 1;
else if (strcmp (argv [1], "-c") == 0)
header = 0;
else
{
fprintf (stderr, "wrong args\n");
exit (2);
}
printf ("/* This file is automatically generated; do not edit */\n");
printf ("\n");
gen_bit_reverse_table ();
if (! header)
{
printf ("#include <stdint.h>\n");
printf ("#include \"bitblt_tables.h\"\n");
printf ("\n");
}
gen_bit_reverse_table (header);
printf ("\n");
gen_run_length_table (0, "rle_tab");
gen_run_length_table (header, 0, "rle_tab");
printf ("\n");
return (0);
}