#include<stdio.h>

int main(void)
{
	int width=256;
	int height=1;

	FILE *fptr = fopen("perlin.tga","wb");
	putc(0,fptr);
	putc(0,fptr);
	putc(2,fptr);                         /* uncompressed RGB */
	putc(0,fptr); putc(0,fptr);
	putc(0,fptr); putc(0,fptr);
	putc(0,fptr);
	putc(0,fptr); putc(0,fptr);           /* X origin */
	putc(0,fptr); putc(0,fptr);           /* y origin */
	putc((width & 0x00FF),fptr);
	putc((width & 0xFF00) / 256,fptr);
	putc((height & 0x00FF),fptr);
	putc((height & 0xFF00) / 256,fptr);
	putc(24,fptr);                        /* 24 bit bitmap */
	putc(0,fptr);

	int permutation[] = { 151,160,137,91,90,15,
		131,13,201,95,96,53,194,233,7,225,140,36,103,30,69,142,8,99,37,240,21,10,23,
		190, 6,148,247,120,234,75,0,26,197,62,94,252,219,203,117,35,11,32,57,177,33,
		88,237,149,56,87,174,20,125,136,171,168, 68,175,74,165,71,134,139,48,27,166,
		77,146,158,231,83,111,229,122,60,211,133,230,220,105,92,41,55,46,245,40,244,
		102,143,54, 65,25,63,161, 1,216,80,73,209,76,132,187,208, 89,18,169,200,196,
		135,130,116,188,159,86,164,100,109,198,173,186, 3,64,52,217,226,250,124,123,
		5,202,38,147,118,126,255,82,85,212,207,206,59,227,47,16,58,17,182,189,28,42,
		223,183,170,213,119,248,152, 2,44,154,163, 70,221,153,101,155,167, 43,172,9,
		129,22,39,253, 19,98,108,110,79,113,224,232,178,185, 112,104,218,246,97,228,
		251,34,242,193,238,210,144,12,191,179,162,241, 81,51,145,235,249,14,239,107,
		49,192,214, 31,181,199,106,157,184, 84,204,176,115,121,50,45,127, 4,150,254,
		138,236,205,93,222,114,67,29,24,72,243,141,128,195,78,66,215,61,156,180
	};

	int i;
	for(i=0;i<256;++i)
	{
		putc(permutation[i],fptr);
		putc(permutation[i],fptr);
		putc(permutation[i],fptr);
	}

	fclose(fptr);
}