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-rw-r--r--util/alevt/exp-gfx.c258
1 files changed, 258 insertions, 0 deletions
diff --git a/util/alevt/exp-gfx.c b/util/alevt/exp-gfx.c
new file mode 100644
index 0000000..82ab218
--- /dev/null
+++ b/util/alevt/exp-gfx.c
@@ -0,0 +1,258 @@
+/* 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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