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tool/: move dump_* from ant-txt to libant; add IO error checkint

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This commit is contained in:
Werner Almesberger
2012-11-01 19:24:17 -03:00
parent cf8c7f754d
commit 5a71d27678
4 changed files with 108 additions and 72 deletions
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2
tools/libant/Makefile
View File

@@ -16,7 +16,7 @@ LIB = libant.a
# _GNU_SOURCE for vasprintf
CFLAGS = -g -Wall -D_GNU_SOURCE
OBJS = edit.o font.o
OBJS = edit.o font.o dump.o
.PHONY: all ben clean spotless

91
tools/libant/dump.c Normal file
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@@ -0,0 +1,91 @@
/*
* tools/libant/dump.c - Antorcha raw image dump
*
* Written 2012 by Werner Almesberger
* Copyright 2012 Werner Almesberger
*
* 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.
*/
#include <stdint.h>
#include <stdio.h>
#include "libant.h"
int dump_binary(FILE *file, const void *canvas, int width, int height)
{
const uint8_t *p = canvas;
int x, y, i;
uint8_t v;
for (x = 0; x != width; x++) {
for (y = 0; y != height; y += 8) {
v = 0;
for (i = 0; i != 8; i++)
if (p[((y+i)*width+x) >> 3] & (1 << (x & 7)))
v |= 1 << i;
if (fputc(v, file) == EOF)
return -1;
}
}
return 0;
}
int dump_xbm(FILE *file, const void *canvas, int width, int height)
{
const uint8_t *p = canvas;
int x, y, i, n;
uint8_t v = 0;
if (fprintf(file, "#define foo_width %d\n", width) < 0)
return -1;
if (fprintf(file, "#define foo_height %d\n", height) < 0)
return -1;
if (fprintf(file, "static unsigned char foo_bits[] = {\n") < 0)
return -1;
n = 0;
for (y = 0; y != height; y++) {
for (x = 0; x < width; x += 8) {
if (n)
if (fprintf(file, "%s 0x%02x",
(n-1) % 12 ? "," :
n == 1 ? " " : ",\n ", v) < 0)
return -1;
v = 0;
for (i = x; i != width && i != x+8; i++)
if (p[(y*width+i) >> 3] & (1 << (i & 7)))
v |= 1 << (i-x);
n++;
}
}
if (fprintf(file, "%s 0x%02x};\n", (n-1) % 12 ? "," : ",\n ", v) < 0)
return -1;
return 0;
}
int dump_ascii(FILE *file, const void *canvas, int width, int height)
{
const uint8_t *p = canvas;
int x, y;
for (y = 0; y != height; y++) {
for (x = 0; x != width; x++)
if (p[(y*width+x) >> 3] & (1 << (x & 7))) {
if (fputc('#', file) == EOF)
return -1;
} else {
if (fputc('.', file) == EOF)
return -1;
}
if (fputc('\n', file) == EOF)
return -1;
}
return 0;
}

4
tools/libant/libant.h
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@@ -77,4 +77,8 @@ void add_font_dir(const char *name);
void *apply_edits(int width, int height, const struct edit *e,
const char **error);
int dump_binary(FILE *file, const void *canvas, int width, int height);
int dump_xbm(FILE *file, const void *canvas, int width, int height);
int dump_ascii(FILE *file, const void *canvas, int width, int height);
#endif /* !LIBANT_H */