int
main(int argc, char *argv[])
{
int i,j,k;
char c;
int res=0;
int x,y;
char buttons;
struct termios t_new,t_old;
FILE *fsc;
char buf[100];
progname=argv[0];
screen_gamma=1.5;
#ifdef DEBUG
log=fopen("/png/view.log","w");
#endif
while((c=getopt(argc,argv,"r:g:"))!=-1) {
switch(c) {
case 'r':
res=atoi(optarg);
if(res>0) max_screen_colors=256;
break;
case 'g':
screen_gamma=atof(optarg);
break;
case '?':
default:
usage();
exit(0);
}
}
switch(res) {
case 0:
VGLInit(SW_CG640x480);
break;
case 1:
VGLInit(SW_VGA_CG320);
break;
case 2:
VGLInit(SW_VGA_MODEX);
break;
default:
fprintf(stderr,"No such resolution!\n");
usage();
exit(-1);
}
#ifdef DEBUG
fprintf(log,"VGL initialised\n");
#endif
VGLSavePalette();
if(argc>optind) {
res=png_load(argv[optind]);
} else {
VGLEnd();
usage();
exit(0);
}
if(res) {
/* Hmm... Script? */
fsc=fopen(argv[optind],"r");
#ifdef DEBUG
fprintf(log,"Trying script %s\n",argv[optind]);
#endif
fgets(buf,99,fsc);
buf[strlen(buf)-1]='\0';
if(strncmp("VIEW SCRIPT",buf,11)!=NULL) {
VGLEnd();
usage();
}
if(strlen(buf)>12) {
auto_chg=atoi(buf+12);
}
fgets(buf,99,fsc);
buf[strlen(buf)-1]='\0';
nimg=atoi(buf);
if(nimg==0) {
VGLEnd();
usage();
}
pres=(char **)calloc(nimg,sizeof(char *));
for(i=0;i<nimg;i++) {
fgets(buf,99,fsc);
buf[strlen(buf)-1]='\0';
pres[i]=strdup(buf);
}
fclose(fsc);
cur_img=0;
#ifdef DEBUG
fprintf(log,"Script with %d entries\n",nimg);
#endif
png_load(pres[cur_img]);
}
VGLMouseInit(VGL_MOUSEHIDE);
/* Prepare the keyboard */
tcgetattr(0,&t_old);
memcpy(&t_new,&t_old,sizeof(struct termios));
cfmakeraw(&t_new);
tcsetattr(0,TCSAFLUSH,&t_new);
fcntl(0,F_SETFL,O_ASYNC);
/* XXX VGLClear doesn't work.. :-(( Prepare a blank background */
bkg.Bitmap=(byte *)calloc(VGLDisplay->Xsize*VGLDisplay->Ysize,1);
bkg.Xsize=VGLDisplay->Xsize;
bkg.Ysize=VGLDisplay->Ysize;
bkg.Type=VGLDisplay->Type;
signal(SIGIO,kbd_handler);
a.zoom=1;
a.Xshift=(VGLDisplay->Xsize-pic.Xsize)/2;
a.Yshift=(VGLDisplay->Ysize-pic.Ysize)/2;
a.rotate=0;
quit=0;
changed=0;
display(&pic,pal_red,pal_green,pal_blue,&a);
while(!quit) {
if(act) {
#ifdef DEBUG
fprintf(log,"kbd_action(%c)\n",act);
#endif
kbd_action(x,y,act);
}
if(quit) break;
if(changed) {
#ifdef DEBUG
fprintf(log,"changed, redisplaying\n");
#endif
display(&pic,pal_red,pal_green,pal_blue,&a);
changed=0;
}
if(auto_chg) {
sleep(auto_chg);
kbd_action(x,y,'n');
} else {
pause();
}
VGLMouseStatus(&x,&y,&buttons);
if(buttons & MOUSE_BUTTON3DOWN) {
#ifdef DEBUG
fprintf(log,"pop_up called\n");
#endif
pop_up("View",x,y);
}
}
VGLEnd();
#ifdef DEBUG
fclose(log);
#endif
exit(0);
}
int
main(int argc, char **argv)
{
int y, xsize, ysize, i,j;
VGLBitmap *tmp;
// set graphics mode, here 320x240 256 colors
// supported modes are (from <sys/consio.h>):
// SW_VGA_CG320: std VGA 320x200 256 colors
// SW_VGA_MODEX: Modex VGA 320x240 256 colors
// SW_VGA_VG640: std VGA 640x480 16 colors
VGLInit(SW_VGA_MODEX);
// initialize mouse and show pointer
VGLMouseInit(VGL_MOUSESHOW);
// VGLDisplay is a ptr to a struct Bitmap defined and initialized by
// libvgl. The Bitmap points directly to screen memory etc.
xsize=VGLDisplay->Xsize;
ysize=VGLDisplay->Ysize;
// alloc a new bitmap
tmp = VGLBitmapCreate(MEMBUF, 256, 256, NULL);
VGLBitmapAllocateBits(tmp);
VGLClear(tmp, 0);
// fill the screen with colored lines
for (y=0; y<ysize; y++)
VGLLine(VGLDisplay, 0, y, xsize-1, y, y/2 % 256);
// draw some lines and circles just to show off
VGLLine(VGLDisplay, 0, 0, xsize-1, ysize-1, 63);
VGLLine(VGLDisplay, 0, ysize-1, xsize-1, 0, 63);
VGLLine(VGLDisplay, 0, 0, 0, ysize-1, 63);
VGLLine(VGLDisplay, xsize-1, 0, xsize-1, ysize-1, 63);
VGLEllipse(VGLDisplay, 256, 0, 256, 256, 63);
VGLEllipse(VGLDisplay, 0, 256, 256, 256, 0);
// some text is also useful
VGLBitmapString(VGLDisplay, 100,100,
"This is text", 63, 0, 0, VGL_DIR_RIGHT);
sleep(2);
VGLBitmapString(VGLDisplay, 100,100,
"This is text", 63, 0, 0, VGL_DIR_UP);
sleep(2);
VGLBitmapString(VGLDisplay, 100,100,
"This is text", 63, 0, 0, VGL_DIR_LEFT);
sleep(2);
VGLBitmapString(VGLDisplay, 100,100,
"This is text", 63, 0, 0, VGL_DIR_DOWN);
sleep(2);
// now show some simple bitblit
for (i=0; i<256; i++)
for (j=0; j<256; j++)
tmp->Bitmap[i+256*j] = i%16;
VGLBitmapCopy(tmp, 0, 0, VGLDisplay, 0, 0, 128, 128);
for (i=0; i<256; i++)
for (j=0; j<256; j++)
tmp->Bitmap[i+256*j] = j%16;
VGLBitmapCopy(tmp, 0, 0, VGLDisplay, 3, 128, 128, 128);
sleep(2);
VGLBitmapCopy(VGLDisplay, 237, 311, tmp, 64, 64, 128, 128);
VGLBitmapCopy(tmp, 32, 32, VGLDisplay, 400, 128, 128, 128);
sleep(2);
VGLBitmapCopy(VGLDisplay, 300, 300, VGLDisplay, 500, 128, 128, 128);
sleep(5);
i=0;
// loop around drawing and copying
while (++i) {
VGLBitmapCopy(VGLDisplay, rand()%xsize, rand()%ysize,
VGLDisplay, rand()%xsize, rand()%ysize,
rand()%xsize, rand()%ysize);
VGLLine(VGLDisplay, rand()%xsize, rand()%ysize,
rand()%xsize, rand()%ysize, rand()%256);
VGLEllipse(VGLDisplay, rand()%xsize, rand()%ysize,
rand()%xsize/2, rand()%ysize/2, rand()%256);
rand();
if (i > 1000) break;
}
// restore screen to its original mode
VGLEnd();
return 0;
}
