314 lines
17 KiB
C
314 lines
17 KiB
C
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/* I was looking though old code, and the one is genius, if a do say so myself.
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I cleaned it up.
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-Neil
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Multi-byte fields are LSB first
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header: 6 bytes (one header per data stream)
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Signature: 3 bytes, 'GIF'
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Version: 3 bytes, '87a' or '89a'
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logical screen descriptor (one per data stream, follow header)
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Logical screen width: 2 bytes
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Logical screen height: 2 bytes
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Packed Data: 1 byte
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Global colour table flag: 1 bit (global table follows?)
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Colour resolution - 1: 3 bits
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Sort flag: 1 bit (important colours first? 0 in 87a)
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Size of global colour table: 3 bits (size is 2^(x+1))
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Background colour: 1 byte
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Pixel aspect ratio: 1 byte (0 = ignore 0 in 87a)
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global colour table: 3 * 2 ^ (size of table + 1) bytes if table flag
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RGB: 3 bytes
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[
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image descriptor: (one per image)
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Image separator: 1 byte 0x2C
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Image left position: 2 bytes
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Image top position: 2 bytes
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Image width: 2 bytes
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Image height: 2 bytes
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Packed data:
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Local colour table?: 1 bit
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Interlace?: 1 bit
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Sorted palette?: 1 bit
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Reserved = 0: 2 bits
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Local colour table size: 3 bits
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local colour table: 3 * 2 ^ (size of table + 1) bytes if table flag
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RGB: 3 bytes
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code size: 1 byte
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repeated data sub-blocks: terminated by zero-size sub-block
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Size: 1 byte
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Data: Size bytes
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]
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trailer: (one per data stream)
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GIF trailer: 1 byte, 0x3B ';'
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*/
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#include <stdlib.h> /* getenv(), atoi() */
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#include <stdio.h> /* printf(), putchar(), fwrite() */
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#include <string.h> /* strcmp() */
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typedef struct tagCode Code;
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struct tagCode {
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Code *child;
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Code *next;
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unsigned char suffix;
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unsigned long code;
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unsigned int code_size;
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};
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static void print_gif(unsigned char parm);
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int main(int argc, char **argv) {
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char *env;
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if(!(env = getenv("REQUEST_METHOD"))
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|| (strcmp(env, "get") && strcmp(env, "GET"))
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|| !(env = getenv("QUERY_STRING"))) {
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printf("Status: 400 Missing required argument.\n\n");
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return EXIT_FAILURE;
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}
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printf("Content-type: image/gif\n\n");
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/* may need to set STDOUT to binary mode to avoid line feed translation
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if your OS sucks (you know who you are!)
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if(setmode(stdout, O_BINARY) == -1) return 1; */
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print_gif(atoi(env));
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return EXIT_SUCCESS;
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}
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static void print_gif(unsigned char parm) {
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/* this is the gif binary output; mine, you could use whatever and paste it
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here from the hex editor, just make it 00-FF as it goes across the image */
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static unsigned char image_data[] = {
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0x08, 0xFE, 0x00, 0x5B, 0x38, 0x18, 0x80, 0xC0, 0x02, 0x8A, 0x18, 0x39,
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0x8A, 0x20, 0xA9, 0xB1, 0xA1, 0xC2, 0x05, 0x0C, 0x16, 0x24, 0x38, 0x60,
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0xD0, 0xE0, 0x41, 0x84, 0x09, 0x15, 0x34, 0x98, 0xE8, 0xC1, 0xA4, 0x09,
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0x13, 0x23, 0x3A, 0x5E, 0x98, 0xF8, 0xD0, 0x01, 0x04, 0x8B, 0x24, 0x56,
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0x9C, 0x10, 0x21, 0x72, 0x85, 0x4C, 0x19, 0x30, 0x54, 0x96, 0xF0, 0xA0,
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0x81, 0x83, 0xC7, 0x8E, 0x21, 0x59, 0xB4, 0x14, 0xD9, 0x81, 0xE3, 0xC6,
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0x0D, 0x1C, 0x39, 0x72, 0xE8, 0xD8, 0xD1, 0x83, 0x67, 0x8E, 0x1E, 0x3D,
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0x74, 0x00, 0xE5, 0x11, 0x44, 0x88, 0x10, 0x22, 0x47, 0x8E, 0x00, 0xE1,
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0xC1, 0xA3, 0xC7, 0x8F, 0x1F, 0x42, 0x9E, 0xB8, 0xC9, 0xA3, 0xA6, 0x4B,
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0x95, 0x27, 0x4B, 0x9A, 0x40, 0xB9, 0xD2, 0x65, 0xCC, 0x18, 0x2E, 0x5F,
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0x3B, 0x42, 0xB1, 0xD2, 0x45, 0x0C, 0x1A, 0x39, 0x7F, 0x18, 0x05, 0x22,
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0xB3, 0xA5, 0x0B, 0x98, 0x32, 0x79, 0x22, 0x59, 0x42, 0x14, 0x67, 0x4D,
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0x9B, 0x3C, 0x89, 0x1A, 0xED, 0x49, 0x43, 0x86, 0x4D, 0x20, 0x49, 0x96,
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0x3A, 0x95, 0x2A, 0x95, 0x09, 0x50, 0x1C, 0x37, 0x6E, 0xDE, 0xC0, 0x89,
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0x03, 0xE7, 0x8D, 0x65, 0x38, 0x74, 0xF2, 0x08, 0x7A, 0xE4, 0x89, 0x95,
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0x2A, 0x4A, 0x83, 0x0C, 0x85, 0x8A, 0xC5, 0x8A, 0xD4, 0xA9, 0x59, 0xB6,
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0x50, 0x71, 0x62, 0x65, 0xAB, 0x15, 0xAA, 0x55, 0xB2, 0x62, 0xB5, 0x5A,
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0xC5, 0x2A, 0x96, 0xAE, 0x61, 0xC6, 0x90, 0x25, 0x43, 0x76, 0x2C, 0x19,
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0xB3, 0x66, 0xCE, 0x9C, 0x3D, 0x73, 0x86, 0xCC, 0xD7, 0xAF, 0x65, 0xD2,
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0xA4, 0x2D, 0xFB, 0xB5, 0x8B, 0x17, 0xB1, 0x67, 0xD2, 0xA0, 0x45, 0xB3,
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0x96, 0x2D, 0x5B, 0x35, 0x64, 0xBD, 0x7A, 0x0D, 0x4B, 0xD6, 0xAC, 0xDA,
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0xB6, 0x66, 0xB1, 0x64, 0xFE, 0x39, 0xCB, 0x16, 0x2C, 0x15, 0xA8, 0x4F,
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0xA0, 0x42, 0x89, 0x2A, 0xC5, 0x8A, 0x56, 0x2E, 0x5C, 0xB4, 0x66, 0xAB,
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0x52, 0xC5, 0xEA, 0x95, 0x2D, 0x5D, 0xC2, 0xB2, 0xB5, 0x13, 0x38, 0x80,
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0xC0, 0x02, 0x08, 0x14, 0x78, 0xA0, 0x03, 0x10, 0x27, 0x50, 0x70, 0xD1,
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0x04, 0x12, 0x3C, 0xC0, 0xC0, 0x82, 0x0E, 0x3C, 0x20, 0x01, 0x05, 0x17,
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0x70, 0x80, 0x02, 0x11, 0x4D, 0x10, 0xB1, 0x43, 0x0D, 0x31, 0xA0, 0xE0,
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0x81, 0x06, 0x1C, 0x9C, 0x10, 0x84, 0x11, 0x31, 0xA8, 0x10, 0x03, 0x14,
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0x62, 0x8C, 0xA1, 0x85, 0x12, 0x3F, 0xDC, 0x20, 0x03, 0x0D, 0x37, 0xD4,
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0x90, 0x03, 0x14, 0x53, 0xFC, 0x80, 0x03, 0x0D, 0x31, 0xC8, 0x50, 0x03,
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0x0E, 0x40, 0xED, 0xC0, 0x83, 0x0E, 0x3E, 0xED, 0xB0, 0x43, 0x0E, 0x3D,
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0x62, 0x25, 0xC4, 0x10, 0x47, 0x20, 0x31, 0x84, 0x4D, 0x3C, 0xF8, 0xE0,
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0x03, 0x10, 0x4D, 0xAC, 0xF1, 0x46, 0x15, 0x4C, 0x24, 0x81, 0x44, 0x12,
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0x4A, 0x28, 0xC1, 0xC4, 0x58, 0x5E, 0x78, 0xE5, 0x44, 0x47, 0x4F, 0x44,
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0x31, 0x45, 0x15, 0x56, 0x68, 0x51, 0x46, 0x20, 0x7C, 0x7C, 0x51, 0x45,
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0x15, 0x59, 0x8C, 0xE1, 0x47, 0x24, 0x8A, 0xC8, 0x61, 0x06, 0x1A, 0x6E,
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0xD4, 0xF1, 0x47, 0x22, 0x7C, 0xA4, 0x31, 0x86, 0x1A, 0x7A, 0x0C, 0x02,
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0x48, 0x24, 0xA2, 0x84, 0xE2, 0x88, 0x1D, 0x6E, 0xB0, 0xB1, 0x86, 0x1A,
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0x6A, 0xAC, 0x31, 0x68, 0xA1, 0x6D, 0xC8, 0x71, 0x47, 0x1F, 0x88, 0x68,
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0xA2, 0xCA, 0x2A, 0x9B, 0x28, 0x92, 0x48, 0x27, 0xA8, 0x64, 0x72, 0x88,
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0x22, 0xA4, 0xC0, 0x02, 0xCA, 0x24, 0xA7, 0xA4, 0xF2, 0x48, 0x22, 0x8E,
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0x68, 0xA2, 0x89, 0x24, 0x8F, 0x48, 0xD2, 0xC9, 0x2B, 0xBE, 0x10, 0x53,
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0xCC, 0xAA, 0xC4, 0xF4, 0xA6, 0x8C, 0x32, 0xFE, 0xCB, 0x38, 0xC3, 0x0C,
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0x2F, 0xA1, 0x84, 0xE2, 0xCB, 0x70, 0xC3, 0xC8, 0x02, 0xCB, 0x2D, 0xC3,
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0x2C, 0x43, 0x4C, 0x2F, 0xC2, 0x30, 0x13, 0x4D, 0x35, 0xD5, 0x28, 0xF3,
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0x0B, 0x7C, 0xB1, 0xD8, 0x92, 0x0C, 0x36, 0xC8, 0xB0, 0xD2, 0x8A, 0x32,
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0xCE, 0xC8, 0x42, 0xCA, 0x27, 0x9E, 0xA0, 0x17, 0x0A, 0x29, 0xAA, 0x24,
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0x5B, 0x0B, 0x69, 0xF3, 0x3D, 0xEA, 0xCA, 0x2C, 0xB7, 0xF0, 0xB2, 0xCC,
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0x39, 0xFC, 0x0D, 0x50, 0x00, 0x02, 0x0D, 0x68, 0x80, 0x83, 0x0D, 0x1A,
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0x3C, 0x60, 0x51, 0x04, 0x10, 0x34, 0xB0, 0x20, 0x45, 0x16, 0x4D, 0x40,
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0x41, 0x05, 0x20, 0xF8, 0x50, 0xC4, 0x0A, 0x23, 0x94, 0xC0, 0x42, 0x0A,
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0x1E, 0x60, 0xA0, 0x01, 0x09, 0x03, 0xAE, 0x50, 0xC2, 0x0B, 0x50, 0x7C,
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0xC1, 0x45, 0x4C, 0x3F, 0xD0, 0xF0, 0x02, 0x0C, 0x34, 0xB8, 0x98, 0x04,
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0x13, 0x3C, 0xD8, 0x30, 0x83, 0x0C, 0x33, 0xD8, 0xE0, 0x13, 0x50, 0x4A,
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0xFD, 0xA4, 0x83, 0x52, 0x36, 0xD8, 0xA0, 0x03, 0x56, 0x41, 0x00, 0x51,
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0x44, 0x12, 0x45, 0xF8, 0xA0, 0x63, 0x0F, 0x3E, 0x04, 0xE1, 0x04, 0x1B,
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0x6E, 0x48, 0x71, 0x04, 0x11, 0x0A, 0x49, 0xA9, 0x04, 0x14, 0x59, 0x84,
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0xC1, 0x85, 0x14, 0x1E, 0x35, 0xF1, 0xC4, 0xCF, 0x4E, 0x3C, 0x41, 0x85,
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0x18, 0x80, 0xEC, 0xD1, 0x85, 0x14, 0x51, 0x54, 0x01, 0xC6, 0x1E, 0x8C,
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0x00, 0xC2, 0x86, 0x19, 0x6D, 0xE0, 0xA1, 0x07, 0x20, 0x8B, 0xFC, 0x91,
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0x86, 0x18, 0x6A, 0xEC, 0x41, 0xC8, 0x61, 0xA2, 0x78, 0x62, 0x48, 0x1C,
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0x84, 0x0E, 0x9A, 0xC6, 0xD8, 0x68, 0xA0, 0x91, 0x06, 0x1B, 0x71, 0xD0,
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0x41, 0x87, 0x1E, 0x8C, 0x98, 0x82, 0xCA, 0x24, 0x82, 0xCC, 0xF9, 0xC9,
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0x25, 0x83, 0x0C, 0x82, 0x49, 0x2B, 0xA2, 0x4C, 0x52, 0x0A, 0xFE, 0x29,
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0x8A, 0x18, 0xC2, 0x08, 0xA9, 0x92, 0x52, 0x92, 0xCA, 0x2C, 0xB4, 0xC0,
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0xE2, 0xCA, 0x2B, 0xA8, 0xED, 0xB2, 0x0B, 0x2E, 0xB5, 0xEC, 0x72, 0xCC,
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0x32, 0xB7, 0x68, 0xB2, 0x09, 0x2E, 0xC8, 0xFC, 0x02, 0x4B, 0x28, 0x9E,
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0x90, 0xC2, 0x4B, 0x31, 0xB7, 0x24, 0xDB, 0x4B, 0x30, 0xCD, 0x50, 0xC3,
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0xCC, 0x2E, 0xAE, 0xA8, 0x82, 0xCA, 0x2B, 0xC9, 0x58, 0x33, 0x4C, 0x2A,
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0xAA, 0x18, 0x93, 0x0C, 0xDE, 0x9E, 0x54, 0x8B, 0x9E, 0x28, 0xA6, 0xB0,
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0x82, 0xDA, 0x2C, 0xAC, 0xAC, 0xB2, 0x8A, 0xB7, 0xB2, 0x34, 0xEE, 0x4C,
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0x3A, 0xE5, 0x1A, 0xB0, 0x40, 0x05, 0x2B, 0xF8, 0x10, 0x83, 0x05, 0x0E,
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0x40, 0x10, 0x81, 0x04, 0x11, 0x4C, 0xB4, 0x60, 0x45, 0x11, 0x44, 0x4F,
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0xC1, 0x07, 0x3D, 0x00, 0x41, 0x82, 0x06, 0x1E, 0xA4, 0xA0, 0xC2, 0x07,
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0x18, 0x64, 0x10, 0xC2, 0x0C, 0x43, 0xD4, 0x00, 0x03, 0x10, 0x57, 0x64,
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0x81, 0x84, 0x0F, 0x3F, 0xE4, 0x10, 0x62, 0x0A, 0x2E, 0xD0, 0xA0, 0xC3,
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0x11, 0x46, 0xE4, 0x30, 0x43, 0x0D, 0x1A, 0xDB, 0x40, 0x43, 0xC4, 0x36,
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0xD4, 0x10, 0xF1, 0x0D, 0x1F, 0xB7, 0x68, 0xC3, 0x0E, 0x40, 0x98, 0xCA,
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0x0E, 0x7E, 0x10, 0x95, 0xA9, 0x20, 0xE5, 0x07, 0x44, 0x90, 0x82, 0x1B,
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0xE2, 0xA0, 0x05, 0x27, 0x1C, 0xA1, 0x08, 0x47, 0x48, 0x42, 0x13, 0xA6,
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0xB0, 0x85, 0x31, 0x80, 0xE1, 0x0A, 0x4F, 0x60, 0xC2, 0x12, 0x98, 0xE0,
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0x04, 0x28, 0x48, 0x61, 0x0A, 0x54, 0xD0, 0x82, 0x1C, 0x12, 0xD1, 0x07,
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0x2F, 0x50, 0x61, 0x0A, 0x56, 0xF0, 0x82, 0x1B, 0x04, 0x71, 0x08, 0x3F,
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0xD8, 0x41, 0x0F, 0x7E, 0xF0, 0xC3, 0x21, 0x1E, 0xD1, 0x07, 0x34, 0x88,
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0x61, 0x0D, 0x85, 0xA0, 0x04, 0x25, 0x36, 0x21, 0x8A, 0x4D, 0xFC, 0xE1,
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0x69, 0xFE, 0x68, 0x58, 0x83, 0xA0, 0x08, 0xA5, 0x86, 0x34, 0xA8, 0xA1,
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0x0D, 0x71, 0x90, 0x43, 0x1C, 0xEE, 0xE0, 0x88, 0x53, 0x7C, 0x82, 0x10,
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0x78, 0xA8, 0x83, 0x1F, 0x28, 0xD1, 0x89, 0x46, 0x28, 0xC2, 0x12, 0xBB,
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0xF3, 0xC4, 0xEE, 0x2C, 0x81, 0x89, 0x51, 0x78, 0xE2, 0x11, 0x8A, 0x68,
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0xC4, 0x28, 0x68, 0xA1, 0x0A, 0x4B, 0x40, 0xC2, 0x11, 0x8F, 0x98, 0x44,
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0x26, 0x3E, 0xD1, 0x89, 0x4C, 0x24, 0x66, 0x17, 0xCA, 0xA0, 0x55, 0x28,
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0x78, 0xD1, 0x0B, 0x52, 0x70, 0x02, 0x13, 0x95, 0xE0, 0x04, 0x2C, 0x80,
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0xA1, 0x0B, 0x5A, 0xCC, 0x22, 0x16, 0xB3, 0x38, 0x46, 0x34, 0x8C, 0x71,
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0x0B, 0xC3, 0xBD, 0xA2, 0x17, 0xD1, 0x88, 0x86, 0x2D, 0x4A, 0xD1, 0xBA,
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0x66, 0x61, 0x4E, 0x76, 0xA0, 0x10, 0x05, 0x29, 0x52, 0x11, 0x8B, 0xF7,
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0xC0, 0x22, 0x77, 0xBA, 0x6B, 0x05, 0x2C, 0x6A, 0xE1, 0x8B, 0x6C, 0xBC,
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0x83, 0x3F, 0x05, 0x68, 0xC0, 0x05, 0x54, 0xC0, 0x32, 0x14, 0x54, 0x40,
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0x79, 0x12, 0xB0, 0x57, 0xBC, 0x18, 0xA4, 0x3C, 0xE5, 0x55, 0x60, 0x04,
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0x25, 0x23, 0x41, 0x06, 0x24, 0xA4, 0x82, 0x10, 0x68, 0x00, 0x7B, 0x2C,
|
||
|
|
0x18, 0x42, 0x07, 0xC3, 0x14, 0x85, 0x1B, 0xB4, 0xC0, 0x05, 0x30, 0x80,
|
||
|
|
0xC1, 0x0A, 0x4C, 0x80, 0x82, 0x17, 0xE4, 0x40, 0x09, 0x47, 0xB0, 0x01,
|
||
|
|
0x0C, 0x62, 0x40, 0x83, 0x8B, 0x2D, 0xB3, 0x99, 0x31, 0xA8, 0x91, 0x8B,
|
||
|
|
0x78, 0x54, 0x83, 0x1B, 0x54, 0xCF, 0x07, 0x40, 0xEA, 0x81, 0x11, 0xA4,
|
||
|
|
0x42, 0x15, 0xAB, 0x14, 0x81, 0x0A, 0x6D, 0x70, 0x43, 0x18, 0xAC, 0xD0,
|
||
|
|
0x04, 0xF8, 0x29, 0x41, 0x0A, 0x5B, 0x00, 0x43, 0x17, 0xAE, 0x00, 0x85,
|
||
|
|
0x25, 0x54, 0x69, 0x09, 0x4E, 0x98, 0x42, 0x16, 0xBA, 0xF0, 0x05, 0x33,
|
||
|
|
0x08, 0xC2, 0x11, 0x7C, 0xFE, 0x10, 0x83, 0x16, 0xB2, 0x90, 0x4E, 0x33,
|
||
|
|
0x8C, 0xD0, 0x11, 0x82, 0xA8, 0x43, 0x1C, 0xF2, 0xB0, 0x08, 0x46, 0xC8,
|
||
|
|
0x81, 0x0C, 0x60, 0x58, 0x83, 0x22, 0x30, 0x71, 0x46, 0x4B, 0x58, 0x82,
|
||
|
|
0x0F, 0x6B, 0x70, 0x49, 0x10, 0xD9, 0x20, 0x28, 0x43, 0xF9, 0x05, 0x0E,
|
||
|
|
0x72, 0x98, 0xC3, 0x1E, 0x2E, 0x51, 0x8A, 0x48, 0xF0, 0x61, 0x0E, 0x4B,
|
||
|
|
0x34, 0x04, 0x27, 0x46, 0xF1, 0x89, 0x4F, 0x7C, 0x6B, 0x93, 0xB3, 0xF8,
|
||
|
|
0x96, 0x2D, 0x56, 0x31, 0x89, 0x46, 0x4C, 0xA2, 0x15, 0xAE, 0x98, 0x04,
|
||
|
|
0x22, 0x06, 0x21, 0x88, 0xD0, 0x80, 0x2A, 0x12, 0x8F, 0x60, 0x04, 0x25,
|
||
|
|
0x68, 0xA1, 0x0C, 0xEC, 0xF4, 0x82, 0x73, 0x9C, 0xB0, 0x44, 0x25, 0x76,
|
||
|
|
0xC8, 0x0A, 0x5E, 0xE4, 0x82, 0x16, 0xB2, 0x70, 0x45, 0x2C, 0x8A, 0xB1,
|
||
|
|
0x0C, 0x5C, 0xB8, 0x02, 0xA6, 0xB6, 0x58, 0xC6, 0x34, 0x84, 0xC1, 0x8A,
|
||
|
|
0x51, 0xB4, 0xEE, 0x75, 0x5D, 0x83, 0xA4, 0x24, 0x4F, 0x87, 0x0B, 0x5E,
|
||
|
|
0xD4, 0xA2, 0x15, 0x8F, 0xA2, 0xCD, 0xAE, 0x86, 0x21, 0x0E, 0x79, 0x08,
|
||
|
|
0xC4, 0x3F, 0x1B, 0x98, 0x01, 0x10, 0x82, 0x10, 0x03, 0x0E, 0x4C, 0x20,
|
||
|
|
0x7A, 0x12, 0x70, 0x08, 0x05, 0x26, 0x52, 0x11, 0x08, 0xD8, 0x75, 0x7A,
|
||
|
|
0x33, 0x50, 0x42, 0x10, 0x4A, 0xC0, 0x01, 0x0F, 0x9C, 0xC0, 0x60, 0x1E,
|
||
|
|
0xE8, 0xEB, 0x09, 0x72, 0x40, 0x85, 0x2F, 0x68, 0x41, 0x0A, 0x4B, 0xB0,
|
||
|
|
0x41, 0x0A, 0x4E, 0xC0, 0x02, 0x18, 0xB8, 0xE0, 0x04, 0x26, 0x58, 0xC1,
|
||
|
|
0x0D, 0x3C, 0x62, 0x83, 0x16, 0xB0, 0xE0, 0x97, 0x2E, 0x78, 0x41, 0x0C,
|
||
|
|
0x9C, 0xF9, 0x4C, 0x1C, 0x80, 0x0C, 0x07, 0xE8, 0xDB, 0xC1, 0x4F, 0x7C,
|
||
|
|
0x60, 0x04, 0x23, 0xFC, 0x60, 0x65, 0xFA, 0xAA, 0xC2, 0x1A, 0xC6, 0x70,
|
||
|
|
0x05, 0x2C, 0xC4, 0xE4, 0x08, 0x4B, 0xA0, 0xFE, 0x42, 0x16, 0xAE, 0x30,
|
||
|
|
0x05, 0xB0, 0x28, 0x81, 0x4A, 0xF0, 0xB4, 0xC2, 0x17, 0xC8, 0xA0, 0x06,
|
||
|
|
0x3C, 0x28, 0x82, 0x11, 0x79, 0x28, 0x43, 0x18, 0x4A, 0x24, 0x06, 0x30,
|
||
|
|
0xA0, 0x81, 0x10, 0x8C, 0xB8, 0xC3, 0xA0, 0xEE, 0xD0, 0x88, 0x43, 0xAC,
|
||
|
|
0xE1, 0x0B, 0x5F, 0x58, 0x03, 0x22, 0x1E, 0x61, 0x07, 0x39, 0xAC, 0xC9,
|
||
|
|
0x10, 0x6F, 0x28, 0x03, 0x19, 0xCC, 0x90, 0x06, 0x21, 0x52, 0x94, 0xA2,
|
||
|
|
0x6D, 0x78, 0x43, 0xDA, 0xFC, 0xB0, 0x89, 0x50, 0x18, 0x42, 0x0F, 0x20,
|
||
|
|
0xA5, 0x83, 0x1F, 0x1E, 0xC1, 0xC8, 0x55, 0x24, 0xEB, 0x3D, 0xB4, 0xC0,
|
||
|
|
0xC5, 0x2E, 0x74, 0x01, 0x0B, 0x4F, 0x68, 0xC2, 0x14, 0xB4, 0x30, 0x05,
|
||
|
|
0x23, 0x68, 0x1A, 0x88, 0x9A, 0x16, 0x22, 0x11, 0x8F, 0xC8, 0xE9, 0x24,
|
||
|
|
0x60, 0xC1, 0x1D, 0x64, 0x04, 0x03, 0x18, 0xB2, 0xF0, 0x44, 0x26, 0x16,
|
||
|
|
0x1C, 0x0A, 0x5B, 0x08, 0x43, 0x17, 0xB1, 0x81, 0x85, 0x2C, 0xB6, 0x53,
|
||
|
|
0x0B, 0x53, 0x88, 0x62, 0x14, 0xAE, 0x58, 0x46, 0x33, 0x64, 0x71, 0x8A,
|
||
|
|
0x51, 0xB0, 0x22, 0x19, 0xD1, 0x9A, 0x56, 0xB5, 0x40, 0x11, 0x49, 0x46,
|
||
|
|
0xBE, 0xE2, 0x16, 0xBD, 0xB8, 0xC5, 0x6C, 0x5A, 0x01, 0x53, 0x59, 0xEC,
|
||
|
|
0x02, 0x1A, 0xEA, 0xA0, 0xC7, 0x59, 0x1D, 0xC0, 0x02, 0x22, 0x20, 0x01,
|
||
|
|
0x08, 0x2C, 0xE0, 0x40, 0x05, 0x96, 0x47, 0x01, 0x81, 0x5D, 0x00, 0x02,
|
||
|
|
0xF4, 0xB2, 0xAB, 0x04, 0x34, 0xD0, 0x82, 0x24, 0x44, 0xA1, 0x08, 0x22,
|
||
|
|
0x89, 0xAC, 0x0B, 0x50, 0x10, 0x82, 0x0F, 0x84, 0x20, 0x05, 0x39, 0x90,
|
||
|
|
0x82, 0x61, 0xC1, 0xB2, 0x03, 0x17, 0xAC, 0xC0, 0x05, 0x32, 0x88, 0xC1,
|
||
|
|
0x0A, 0x54, 0xE0, 0x82, 0x1C, 0x4C, 0x61, 0x0A, 0x39, 0x78, 0x81, 0x0B,
|
||
|
|
0xC6, 0x0C, 0x83, 0x15, 0xD9, 0x2F, 0x9A, 0x2B, 0xC2, 0xC1, 0xFE, 0x0E,
|
||
|
|
0x78, 0x04, 0x5A, 0x20, 0x24, 0x85, 0x07, 0x43, 0x48, 0xC2, 0x11, 0x4E,
|
||
|
|
0x9B, 0x24, 0x02, 0x76, 0xA1, 0x0D, 0x5E, 0xC9, 0x02, 0x16, 0xA0, 0x60,
|
||
|
|
0x25, 0x2A, 0x60, 0xC1, 0x0A, 0x27, 0x84, 0x42, 0x13, 0x96, 0xB0, 0x41,
|
||
|
|
0x9C, 0x81, 0xA1, 0x30, 0x7A, 0x28, 0x84, 0x22, 0xFA, 0xB0, 0x86, 0x33,
|
||
|
|
0x9C, 0xC1, 0x0C, 0x61, 0xF0, 0x42, 0x19, 0x04, 0x81, 0x88, 0x36, 0x94,
|
||
|
|
0x01, 0x0D, 0x79, 0x78, 0x44, 0x21, 0xD4, 0x00, 0xDD, 0x35, 0x24, 0x02,
|
||
|
|
0x12, 0x76, 0x80, 0xC3, 0x1D, 0x22, 0x21, 0x89, 0x3B, 0xA8, 0xE1, 0x4D,
|
||
|
|
0x6A, 0x60, 0x43, 0x38, 0x21, 0x13, 0xCE, 0x37, 0x28, 0x6A, 0x10, 0xA1,
|
||
|
|
0x18, 0xC5, 0x22, 0x00, 0xA1, 0x87, 0x3C, 0xEC, 0x61, 0x10, 0x91, 0x08,
|
||
|
|
0x45, 0x29, 0x4C, 0x01, 0x9B, 0x5C, 0xD8, 0x62, 0x57, 0xBD, 0xD8, 0x85,
|
||
|
|
0x8A, 0x57, 0x11, 0xDF, 0x53, 0x48, 0xA2, 0x11, 0xC8, 0x46, 0x63, 0x1A,
|
||
|
|
0x31, 0x81, 0x09, 0x4B, 0x6C, 0x82, 0x16, 0xC8, 0x68, 0x06, 0xE7, 0x6C,
|
||
|
|
0x31, 0x0B, 0x53, 0x90, 0x62, 0x14, 0xA5, 0x68, 0x85, 0x2F, 0x0C, 0x8C,
|
||
|
|
0x8B, 0x5B, 0xE0, 0x22, 0x17, 0xBF, 0x50, 0x46, 0x2F, 0x4A, 0xD1, 0x89,
|
||
|
|
0x4F, 0xB0, 0x22, 0x56, 0xB3, 0x40, 0x45, 0x29, 0x5C, 0xC1, 0x0C, 0x6C,
|
||
|
|
0x04, 0x03, 0x15, 0xE7, 0x49, 0x8F, 0x7A, 0x4E, 0xE1, 0x8A, 0x5A, 0xF0,
|
||
|
|
0xE2, 0x17, 0xB6, 0x78, 0xEA, 0x2B, 0x5E, 0x11, 0x0B, 0x5A, 0xFC, 0x62,
|
||
|
|
0x1B, 0xEF, 0xA8, 0xC7, 0x59, 0x1F, 0x00, 0x03, 0xD8, 0x1E, 0xC1, 0x07,
|
||
|
|
0x2E, 0xD8, 0xC0, 0xBD, 0x2E, 0xC0, 0xA1, 0x0C, 0x44, 0xA0, 0x01, 0x0D,
|
||
|
|
0x52, 0xDE, 0x04, 0x3E, 0xC0, 0x83, 0x29, 0x5C, 0x41, 0x0A, 0x4A, 0x10,
|
||
|
|
0x02, 0xCB, 0x72, 0x50, 0x4B, 0x0F, 0x88, 0xC0, 0x05, 0x43, 0x88, 0x02,
|
||
|
|
0x3D, 0xE8, 0xAF, 0xD0, 0x04, 0x1F, 0xD4, 0x40, 0x7F, 0x35, 0x98, 0x41,
|
||
|
|
0x8D, 0x6E, 0x20, 0x84, 0x7D, 0xA6, 0x28, 0x64, 0x1A, 0x13, 0xCA, 0x8F,
|
||
|
|
0xEC, 0xC7, 0x22, 0x1D, 0x14, 0x05, 0x47, 0x3E, 0x18, 0xC2, 0x10, 0x82,
|
||
|
|
0x30, 0x04, 0x25, 0x94, 0xF3, 0x07, 0x07, 0x0C, 0x42, 0x12, 0xBE, 0xC0,
|
||
|
|
0x86, 0x2F, 0x6C, 0xC1, 0xE8, 0x88, 0x6D, 0x42, 0x15, 0xB8, 0x10, 0x86,
|
||
|
|
0x31, 0x84, 0x61, 0x0B, 0x53, 0x70, 0x82, 0xCF, 0xA6, 0xA0, 0x05, 0x31,
|
||
|
|
0xA4, 0x41, 0x51, 0x79, 0x38, 0xC4, 0x21, 0xF2, 0x60, 0xE9, 0xE2, 0x7E,
|
||
|
|
0xE1, 0x0C, 0x84, 0x58, 0x04, 0x1D, 0xCE, 0x06, 0x88, 0x47, 0x0C, 0xA2,
|
||
|
|
0x0D, 0x64, 0x18, 0x43, 0x1B, 0x18, 0xB1, 0x89, 0x48, 0x14, 0xA2, 0x10,
|
||
|
|
0x97, 0xE0, 0x44, 0x21, 0xE2, 0xA0, 0x6A, 0xC9, 0xC0, 0xE1, 0xEE, 0x6F,
|
||
|
|
0x88, 0x4C, 0x1C, 0xEA, 0xD0, 0x07, 0x4A, 0xA8, 0x02, 0x6F, 0x95, 0x58,
|
||
|
|
0xC4, 0xA5, 0x32, 0x81, 0x8A, 0x56, 0x9C, 0x42, 0x31, 0xB2, 0x38, 0xEA,
|
||
|
|
0x2A, 0x38, 0xF9, 0x8B, 0x5E, 0xD8, 0xE2, 0x15, 0x2E, 0xC6, 0x05, 0x2C,
|
||
|
|
0x58, 0xEC, 0x8A, 0xC3, 0x49, 0xD8, 0x16, 0xB7, 0xA8, 0x05, 0x2E, 0x86,
|
||
|
|
0xC1, 0x8C, 0x67, 0x28, 0x63, 0x18, 0xC3, 0x20, 0xC6, 0x2F, 0x32, 0xCF,
|
||
|
|
0x0B, 0x5E, 0xDC, 0x46, 0x18, 0xBF, 0x38, 0x06, 0x33, 0x92, 0x71, 0x0C,
|
||
|
|
0x67, 0x10, 0x23, 0x15, 0x9F, 0x08, 0xC5, 0x2B, 0x9C, 0x71, 0x8D, 0x61,
|
||
|
|
0x94, 0xE6, 0xDC, 0xDD, 0x58, 0xC6, 0x2A, 0xE2, 0xAD, 0x1E, 0xAB, 0xFA,
|
||
|
|
0x1B, 0x19, 0xC0, 0xA8, 0x45, 0xE5, 0x5F, 0x01, 0x0B, 0x70, 0x0D, 0x23,
|
||
|
|
0x1C, 0xF1, 0xA8, 0x47, 0x40, 0x00 };
|
||
|
|
int i, r, g, b, colour_change;
|
||
|
|
|
||
|
|
/* GIF header */
|
||
|
|
printf("GIF"); /* signature */
|
||
|
|
printf("87a"); /* version */
|
||
|
|
/* logical screen descriptor */
|
||
|
|
putchar(0); putchar(1); /* width */
|
||
|
|
putchar(8); putchar(0); /* height */
|
||
|
|
putchar(0xF7); /* 256 colours with table to follow */
|
||
|
|
putchar(0); /* background colour */
|
||
|
|
putchar(0); /* reserved (aspect ratio in 89a) */
|
||
|
|
/* global colour table - do'n't mess the colours up, just the colour table;
|
||
|
|
like the old trick with 256-colour games where they do animation with
|
||
|
|
colour cycling */
|
||
|
|
r = 0xF0, g = 0x00, b = 0x32; /* aiming for 0x50 0xA0 0xC0 */
|
||
|
|
if(parm < 40) {
|
||
|
|
colour_change = (40 - parm) << 1;
|
||
|
|
r -= colour_change;
|
||
|
|
g += colour_change;
|
||
|
|
b += colour_change;
|
||
|
|
}
|
||
|
|
for(i = 0; i <= 0xFF; i++) {
|
||
|
|
if(i >= parm - 40 && i < parm + 40) {
|
||
|
|
r -= 2; g += 2; b += 2;
|
||
|
|
}
|
||
|
|
putchar(r); putchar(g); putchar(b);
|
||
|
|
}
|
||
|
|
/* image descriptor */
|
||
|
|
putchar(','); /* image separator */
|
||
|
|
putchar(0); putchar(0); /* image left position */
|
||
|
|
putchar(0); putchar(0); /* image top position */
|
||
|
|
putchar(0); putchar(1); /* image width */
|
||
|
|
putchar(8); putchar(0); /* image height */
|
||
|
|
putchar(0); /* packed flags - use global table */
|
||
|
|
/* image data block, *ptr, size, ntimes, stream */
|
||
|
|
if(fwrite(image_data, sizeof(char), sizeof(image_data), stdout) != sizeof(image_data))
|
||
|
|
{ perror("stdout"); }
|
||
|
|
putchar(0); /* terminating empty sub-block */
|
||
|
|
/* GIF trailer */
|
||
|
|
putchar(';'); /* trailer */
|
||
|
|
}
|