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/* Copyright 1999 by Paul Ortyl <ortylp@from.pl> */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "lang.h"
#include "export.h"
#include "font.h"
#define WW (W*CW) /* pixel width of window */
#define WH (H*CH) /* pixel hegiht of window */
static inline void draw_char(unsigned char * colour_matrix, int fg, int bg,
int c, int dbl, int _x, int _y, int sep)
{
int x,y;
unsigned char* src= (latin1==LATIN1 ? font1_bits : font2_bits);
int dest_x=_x*CW;
int dest_y=_y*CH;
for(y=0;y<(CH<<dbl); y++)
{
for(x=0;x<CW; x++)
{
int bitnr, bit, maskbitnr, maskbit;
bitnr=(c/32*CH + (y>>dbl))*CW*32+ c%32*CW +x;
bit=(*(src+bitnr/8))&(1<<bitnr%8);
if (sep)
{
maskbitnr=(0xa0/32*CH + (y>>dbl))*CW*32+ 0xa0%32*CW +x;
maskbit=(*(src+maskbitnr/8))&(1<<maskbitnr%8);
*(colour_matrix+WW*(dest_y+y)+dest_x+x)=
(char)((bit && (!maskbit)) ? fg : bg);
}
else
*(colour_matrix+WW*(dest_y+y)+dest_x+x)=
(char)(bit ? fg : bg);
}
}
return;
}
static void prepare_colour_matrix(/*struct export *e,*/
struct fmt_page *pg,
unsigned char *colour_matrix)
{
int x, y;
for (y = 0; y < H; ++y)
{
for (x = 0; x < W; ++x)
{
if (pg->dbl & (1<<(y-1)))
{
if (pg->data[y-1][x].attr & EA_HDOUBLE)
draw_char(colour_matrix, pg->data[y][x].fg,
pg->data[y][x].bg, pg->data[y][x].ch,
(0),
x, y,
((pg->data[y][x].attr & EA_SEPARATED) ? 1 : 0)
);
}
else
{
draw_char(colour_matrix, pg->data[y][x].fg,
pg->data[y][x].bg, pg->data[y][x].ch,
((pg->data[y][x].attr & EA_DOUBLE) ? 1 : 0),
x, y,
((pg->data[y][x].attr & EA_SEPARATED) ? 1 : 0)
);
}
}
}
return;
}
static int ppm_output(struct export *e, char *name, struct fmt_page *pg);
struct export_module export_ppm = // exported module definition
{
"ppm", // id
"ppm", // extension
0, // options
0, // size
0, // open
0, // close
0, // option
ppm_output // output
};
static int ppm_output(struct export *e, char *name, struct fmt_page *pg)
{
FILE *fp;
long n;
static u8 rgb1[][3]={{0,0,0},
{1,0,0},
{0,1,0},
{1,1,0},
{0,0,1},
{1,0,1},
{0,1,1},
{1,1,1}};
unsigned char *colour_matrix;
if (!(colour_matrix=malloc(WH*WW)))
{
export_error("cannot allocate memory");
return 0;
}
prepare_colour_matrix(/*e,*/ pg, (unsigned char *)colour_matrix);
if (not(fp = fopen(name, "w")))
{
free(colour_matrix);
export_error("cannot create file");
return -1;
}
fprintf(fp,"P6 %d %d 1\n", WW, WH);
for(n=0;n<WH*WW;n++)
{
if (!fwrite(rgb1[(int) *(colour_matrix+n)], 3, 1, fp))
{
export_error("error while writting to file");
free(colour_matrix);
fclose(fp);
return -1;
}
}
free(colour_matrix);
fclose(fp);
return 0;
}
#ifdef WITH_PNG
#include <png.h>
static int png_open(struct export *e);
static int png_option(struct export *e, int opt, char *arg);
static int png_output(struct export *e, char *name, struct fmt_page *pg);
static char *png_opts[] = // module options
{
"compression=<0-9>", // set compression level
0
};
struct png_data // private data in struct export
{
int compression;
};
struct export_module export_png = // exported module definition
{
"png", // id
"png", // extension
png_opts, // options
sizeof(struct png_data), // size
png_open, // open
0, // close
png_option, // option
png_output // output
};
#define D ((struct png_data *)e->data)
static int png_open(struct export *e)
{
D->compression = Z_DEFAULT_COMPRESSION;
return 0;
}
static int png_option(struct export *e, int opt, char *arg)
{
switch (opt)
{
case 1: // compression=
if (*arg >= '0' && *arg <= '9')
D->compression = *arg - '0';
break;
}
return 0;
}
static int png_output(struct export *e, char *name, struct fmt_page *pg)
{
FILE *fp;
int x;
png_structp png_ptr;
png_infop info_ptr;
png_byte *row_pointers[WH];
static u8 rgb8[][3]={{ 0, 0, 0},
{255, 0, 0},
{ 0,255, 0},
{255,255, 0},
{ 0, 0,255},
{255, 0,255},
{ 0,255,255},
{255,255,255}};
unsigned char *colour_matrix;
if (!(colour_matrix=malloc(WH*WW)))
{
export_error("cannot allocate memory");
return -1;
}
prepare_colour_matrix(/*e,*/ pg, (unsigned char *)colour_matrix);
if (not(fp = fopen(name, "w")))
{
free(colour_matrix);
export_error("cannot create file");
return -1;
}
png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING,
NULL, NULL, NULL);
if (!png_ptr)
{
free(colour_matrix);
fclose(fp);
export_error("libpng init error");
return -1;
}
info_ptr = png_create_info_struct(png_ptr);
if (!info_ptr)
{
png_destroy_write_struct(&png_ptr,
(png_infopp)NULL);
free(colour_matrix);
fclose(fp);
export_error("libpng init error");
return -1;
}
png_init_io(png_ptr, fp);
png_set_compression_level(png_ptr, D->compression);
png_set_compression_mem_level(png_ptr, 9);
png_set_compression_window_bits(png_ptr, 15);
png_set_IHDR(png_ptr, info_ptr, WW, WH,
8, PNG_COLOR_TYPE_PALETTE , PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
png_set_PLTE(png_ptr, info_ptr,(png_color*) rgb8 , 8);
png_write_info(png_ptr, info_ptr);
for(x=0; x<WH; x++)
{ row_pointers[x]=colour_matrix+x*WW; }
png_write_image(png_ptr, row_pointers);
png_write_end(png_ptr, info_ptr);
png_destroy_write_struct(&png_ptr, &info_ptr);
free(colour_matrix);
fclose(fp);
return 0;
}
#endif
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