Felisp
84436a5ae0
http://my.svgalib.org/svgalib/svgalib-1.9.25.tar.gz http://my.svgalib.org/svgalib/
129 lines
2.4 KiB
C
129 lines
2.4 KiB
C
/* bg_test.c
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Copyright (c) 1997 Michael Friman. All rights reserved.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <strings.h>
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#include <vga.h>
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#include <vgagl.h>
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/*
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If you really want to see background runin, add after
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vga_setmode vga_runinbackground(1) in fun.
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Remember to compile the svgalib with background.
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*/
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int go = 0;
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int linear = 0;
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void drawline(int x1, int y1, int x2, int y2)
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{
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if (linear)
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{
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gl_line(x1,y1,x2,y2,vga_white());
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}
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else
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{
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vga_drawline(x1,y1,x2,y2);
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}
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}
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void set_go(void)
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{
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go=1;
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return;
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}
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int main(int argc, char *argv[])
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{
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int x[2];
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int y[2];
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int counter;
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int mode;
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if ((argc > 2) || ((argc == 2) && (strcmp(argv[1], "linear") != 0)))
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{
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fputs("Usage: bg_test [linear]\n", stderr);
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exit(2);
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}
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vga_init();
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printf("This is small test for background runin.\n");
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if (vga_runinbackground_version()==1 || vga_runinbackground_version()>=3)
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{
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printf("Background runin enabled. mode %d\n", vga_runinbackground_version());
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}
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else
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{
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printf("Svgalib is not background capable.\n");
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printf("Test ended.\n");
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return(0);
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}
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printf("Switch to another console when the box appears.\n");
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printf("Press enter to continue or CTRL-c to stop.\n");
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getchar();
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mode = vga_getdefaultmode();
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if (mode < 0)
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mode = G320x200x256;
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if (argc == 2)
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{
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if (vga_getmodeinfo(mode)->flags & CAPABLE_LINEAR)
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{
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vga_setlinearaddressing();
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fputs("Linear mode set.\n", stderr);
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linear = 1;
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}
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else
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{
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fputs("Linear mode unavailable.\n", stderr);
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}
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}
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vga_setmode(mode);
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if (linear)
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gl_setcontextvga(mode);
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vga_runinbackground(VGA_GOTOBACK,set_go);
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vga_runinbackground(1);
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x[0]=0;
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y[0]=0;
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x[1]=vga_getxdim()-1;
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y[1]=vga_getydim()-1;
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if (!linear)
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vga_setcolor(vga_white());
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counter=(y[1]/11)*5+1;
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while(counter<=(y[1]/11)*6)
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{
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drawline((x[1]/11)*5,counter,(x[1]/11)*6,counter);
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counter++;
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}
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/* Program won't go further without console switching. */
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while(!go) usleep(1000);
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drawline(x[0],y[0],x[1],y[0]);
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drawline(x[1],y[0],x[1],y[1]);
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drawline(x[1],y[1],x[0],y[1]);
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drawline(x[0],y[1],x[0],y[0]);
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drawline(x[0],y[0],x[1],y[1]);
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drawline(x[1],y[0],x[0],y[1]);
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while(!vga_getkey());
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vga_setmode(TEXT);
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printf("Ok.\n");
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return(0);
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}
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