1// fade.h  2  3/* Routines to fade the first 16 palette colors to and from black,  4   using the Linux console routines.  (See drivers/char/console.c, look  5   for ESpalette) */  6  7/* the default colour table, for VGA+ colour systems */  8int default_red[] = {0x00,0xaa,0x00,0xaa,0x00,0xaa,0x00,0xaa,0x55,0xff,0x55,0xff,0x55,0xff,0x55,0xff};  9int default_grn[] = {0x00,0x00,0xaa,0x55,0x00,0x00,0xaa,0xaa,0x55,0x55,0xff,0xff,0x55,0x55,0xff,0xff}; 10int default_blu[] = {0x00,0x00,0x00,0x00,0xaa,0xaa,0xaa,0xaa,0x55,0x55,0x55,0x55,0xff,0xff,0xff,0xff}; 11 12unsigned int steps=64; /* How many steps to fade in.  Can be decreased for 13             less smooth but quicker fading. */ 14 15/* Requires two args.  One is boolean (true for fade in, false for fade out), 16   second is fading time in ms. A third, if provided, will be used as nubmer  17   of steps.*/ 18 19int fadetime = 0; 20int FDE=1; 21 22int fadein() 23{ 24if (FDE == 1) { 25    unsigned long restsize; 26    unsigned int i; 27    unsigned char j, stepsize, red, green, blue; 28 29    stepsize=256/steps; 30    restsize=1000 * fadetime/steps; 31    for (i=0; i<=255; i+=stepsize) { 32        printf("\e[A"); 33        fflush(stdout); 34        for (j=0; j<=15; j++) { 35            red=default_red[j]*i/256; 36            green=default_grn[j]*i/256; 37            blue=default_blu[j]*i/256; 38            printf("\e]P%1X%02X%02X%02X",j,\ 39             red, green, blue); 40        } 41        usleep(restsize); 42    } 43    printf("\e]R"); 44} 45} 46 47int fadeout() 48{ 49if (FDE == 1) { 50    unsigned long restsize; 51    int i; 52    unsigned char j, stepsize, red, green, blue; 53 54    steps=64; 55    stepsize=256/steps; 56    restsize=1000 * fadetime/steps; 57    for (i=256; i>=0; i-=stepsize) { 58        printf("\e[A"); 59        fflush(stdout); 60        for (j=0; j<=15; j++) { 61            red=default_red[j]*i/256; 62            green=default_grn[j]*i/256; 63            blue=default_blu[j]*i/256; 64            printf("\e]P%1X%02X%02X%02X",j,\ 65            red, green, blue); 66        } 67        usleep(restsize); 68    } 69} 70} 71 72// fadein.c 73 74/* Routines to fade the first 16 palette colors to and from black, 75   using the Linux console routines.  (See drivers/char/console.c, look 76   for ESpalette) */ 77 78#include <stdio.h> /* do we need this anymore? */ 79#include <unistd.h> /* ioperm */ 80 81/* the default colour table, for VGA+ colour systems */ 82int default_red[] = {0x00,0xaa,0x00,0xaa,0x00,0xaa,0x00,0xaa,0x55,0xff,0x55,0xff,0x55,0xff,0x55,0xff}; 83int default_grn[] = {0x00,0x00,0xaa,0x55,0x00,0x00,0xaa,0xaa,0x55,0x55,0xff,0xff,0x55,0x55,0xff,0xff}; 84int default_blu[] = {0x00,0x00,0x00,0x00,0xaa,0xaa,0xaa,0xaa,0x55,0x55,0x55,0x55,0xff,0xff,0xff,0xff}; 85 86unsigned int steps=64; /* How many steps to fade in.  Can be decreased for 87             less smooth but quicker fading. */ 88 89/* Requires two args.  One is boolean (true for fade in, false for fade out), 90   second is fading time in ms. A third, if provided, will be used as nubmer 91   of steps.*/ 92 93int main(int argc, char *argv[]) 94{ 95    if (argc > 3) { steps=atoi(argv[3]); } 96    return ( atoi(argv[1]) ? fadein(atoi(argv[2])) : fadeout(atoi(argv[2])) ); 97} 98 99int fadein(int fadetime)100{101    unsigned long restsize;102    unsigned int i;103    unsigned char j, stepsize, red, green, blue;104105    stepsize=256/steps;106    restsize=1000 * fadetime/steps;107    for (i=0; i<=255; i+=stepsize) {108        printf("\e[A\n"); /* Because we get no output w/o newlines */109        for (j=1; j<=15; j++) {110            red=default_red[j]*i/256;111            green=default_grn[j]*i/256;112            blue=default_blu[j]*i/256;113            /* printf("P%1XR%dG%dB%d\t", j, red, green, blue); */114            printf("\e]P%1X%02X%02X%02X",j,\115             red, green, blue);116        }117        usleep(restsize);118    }119    printf("\e]R");120}121122int fadeout(int fadetime)123{124        unsigned long restsize;125        int i;126        unsigned char j, stepsize, red, green, blue;127128        steps=64;129        stepsize=256/steps;130        restsize=1000 * fadetime/steps;131        for (i=256; i>=0; i-=stepsize) {132                printf("\e[A\n"); /* Because we get no output w/o newlines */133                for (j=1; j<=15; j++) {134                        red=default_red[j]*i/256;135                        green=default_grn[j]*i/256;136                        blue=default_blu[j]*i/256;137                        /* printf("P%1XR%dG%dB%d\t", j, red, green, blue); */138                        printf("\e]P%1X%02X%02X%02X",j,\139                         red, green, blue);140                }141                usleep(restsize);142        }143}144145// fademe.c146147#include <stdio.h>148#include "fade.h"149150void main()151{152    fadeout();153    fadein();154}