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#include <stdio.h>
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#include <stdlib.h>
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static int width, height;
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static char bname[50] = "noname";
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static int perline = 13;
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static char mask[9] = { 0x00, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe, 0xff };
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static char imask[9] = { 0x00, 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f, 0xff };
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void
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parameters(const int argn, char **argc)
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{
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if (argn != 3)
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{
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fprintf(stderr, "usage: %s <width> <height>\n", argc[0]);
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exit(1);
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}
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width = atoi(argc[1]);
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height = atoi(argc[2]);
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}
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void
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writesize(int w, int h)
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{
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printf("#define %s_width %i\n", bname, w);
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printf("#define %s_height %i\n", bname, h);
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}
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char
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cstart(int p, int n)
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{
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char c;
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if (p==0)
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c=0xaa;
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else
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c=0x55;
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return c & mask[n];
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}
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char
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cend(int p, int n)
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{
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char c;
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if (p==0)
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c=0xaa;
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else
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c=0x55;
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return c & imask[n];
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}
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void
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writebits(int w, int h)
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{
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int column;
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int i;
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int bits;
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unsigned char c;
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int pair; /* boolean */
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int leftline;
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printf("static char %s_bits[] = {\n", bname);
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bits=w*h;
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leftline=w;
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i=0;
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column=0;
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pair=0;
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while(i < bits)
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{
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if(column == 0)
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putchar(' ');
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/*fprintf(stderr, "leftline=%i\n", leftline);*/
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if (leftline >= 8)
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{
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c = cstart(pair, 8);
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printf("0x%2x", (unsigned int) c);
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column++;
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leftline -= 8;
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i += 8;
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}
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else if (leftline > 0)
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{
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c = cend(pair, leftline);
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pair ^= 1; /* 1->0, 0->1 */
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c |= cstart(pair, 8 - leftline);
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printf("0x%2x", (unsigned int) c);
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i += leftline;
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leftline = w;
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column++;
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}
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else if (leftline == 0)
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{
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leftline = w;
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pair ^= 1; /* 1->0, 0->1 */
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}
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if(i < bits && leftline != 0)
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putchar(',');
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if (column > perline && leftline != 0)
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{
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putchar('\n');
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column = 0;
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}
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}
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printf("};\n");
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}
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int main(int argn, char **argc)
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{
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parameters(argn, argc);
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writesize(width, height);
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writebits(width, height);
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return 0;
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}
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