void
vgainit(void)
{
{int b=0; while (b);}
if (geteuid() != 0) {
fprintf(stderr, "The current graphics console architecture only permits " \
"super-user to access it, therefore you either have to obtain such permissions" \
"or ask your sysadmin to put set-user-id on digger executable.\n");
exit(1);
}
if (VGLInit(SW_VESA_CG640x400) != 0) {
fprintf(stderr, "WARNING! Could not initialise VESA mode. " \
"Trying to fallback to the VGA 640x480 mode\n");
if (VGLInit(SW_CG640x480) == 0)
yoffset = 40; /* Center the image */
else {
fprintf(stderr, "WARNING! Could not initialise VGA mode either. " \
"Please check your kernel.\n");
exit(1);
}
}
vgl_inited = 1;
sVGLDisplay = VGLBitmapCreate(MEMBUF, 640, 400, NULL);
VGLBitmapAllocateBits(sVGLDisplay);
VGLClear(sVGLDisplay, 0);
/*
* Since the VGL library doesn't provide a default way to restore console
* and keyboard after uncatched by the program signal, we should try to
* catch at least what we could catch and pray to God that he would not
* send SIGKILL to us.
*/
signal(SIGHUP, catcher);
signal(SIGINT, catcher);
signal(SIGQUIT, catcher);
signal(SIGABRT, catcher);
signal(SIGTERM, catcher);
signal(SIGSEGV, catcher);
signal(SIGBUS, catcher);
signal(SIGILL, catcher);
}
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;
}
SDL_Surface *VGL_SetVideoMode(_THIS, SDL_Surface *current,
int width, int height, int bpp, Uint32 flags)
{
int mode_found;
int i;
VGLMode **modes;
modes = VGLListModes(bpp, V_INFO_MM_DIRECT | V_INFO_MM_PACKED);
mode_found = 0;
for (i = 0; modes[i] != NULL; i++) {
if ((modes[i]->ModeInfo.Xsize == width) &&
(modes[i]->ModeInfo.Ysize == height) &&
((modes[i]->ModeInfo.Type == VIDBUF8) ||
(modes[i]->ModeInfo.Type == VIDBUF16) ||
(modes[i]->ModeInfo.Type == VIDBUF32))) {
mode_found = 1;
break;
}
}
if (mode_found == 0) {
SDL_SetError("No matching video mode found");
return NULL;
}
if (VGLCurMode != NULL)
VGLEnd();
if (VGLInit(modes[i]->ModeId) != 0) {
SDL_SetError("Unable to switch to requested mode");
return NULL;
}
VGLCurMode = SDL_realloc(VGLCurMode, sizeof(VGLMode));
VGLCurMode->ModeInfo = *VGLDisplay;
VGLCurMode->Depth = modes[i]->Depth;
VGLCurMode->ModeId = modes[i]->ModeId;
VGLCurMode->Rmask = modes[i]->Rmask;
VGLCurMode->Gmask = modes[i]->Gmask;
VGLCurMode->Bmask = modes[i]->Bmask;
if (VGLCurMode->ModeInfo.PixelBytes == 0)
(VGLCurMode->ModeInfo.PixelBytes = 1);
current->w = VGLCurMode->ModeInfo.Xsize;
current->h = VGLCurMode->ModeInfo.Ysize;
current->pixels = VGLCurMode->ModeInfo.Bitmap;
current->pitch = VGLCurMode->ModeInfo.Xsize *
VGLCurMode->ModeInfo.PixelBytes;
current->flags = (SDL_FULLSCREEN | SDL_HWSURFACE);
if (VGLCurMode->ModeInfo.Type == VIDBUF8)
current->flags |= SDL_HWPALETTE;
if (flags & SDL_DOUBLEBUF) {
if (VGLCurMode->ModeInfo.Xsize * 2 <=
VGLCurMode->ModeInfo.VYsize) {
current->flags |= SDL_DOUBLEBUF;
flip_page = 0;
flip_address[0] = (byte *)current->pixels;
flip_address[1] = (byte *)current->pixels +
current->h * current->pitch;
VGL_FlipHWSurface(this, current);
}
}
if (! SDL_ReallocFormat(current, modes[i]->Depth, VGLCurMode->Rmask,
VGLCurMode->Gmask, VGLCurMode->Bmask, 0)) {
return NULL;
}
VGL_UpdateVideoInfo(this);
this->UpdateRects = VGL_DirectUpdate;
return current;
}
int GGI_vgl_setmode(ggi_visual *vis, ggi_mode *tm)
{
struct vgl_priv *priv = VGL_PRIV(vis);
ggi_graphtype gt = tm->graphtype;
video_info_t modeinfo;
unsigned long modenum = 0;
char sugname[GGI_MAX_APILEN];
char args[GGI_MAX_APILEN];
int err = 0;
int id, i;
int pixelBytes;
err = GGI_vgl_checkmode(vis, tm);
if (err) return err;
/* reset the modeinfo structure as expected by query_mode */
memset(&modeinfo, 0, sizeof(modeinfo));
switch(gt) {
case GT_1BIT : modeinfo.vi_depth = 1; pixelBytes = 1; break;
case GT_4BIT : modeinfo.vi_depth = 4; pixelBytes = 1; break;
case GT_8BIT : modeinfo.vi_depth = 8; pixelBytes = 1; break;
case GT_16BIT: modeinfo.vi_depth = 16; pixelBytes = 2; break;
case GT_32BIT: modeinfo.vi_depth = 32; pixelBytes = 4; break;
/* Unsupported mode depths */
case GT_15BIT:
case GT_24BIT:
default:
return GGI_ENOMATCH;
}
modeinfo.vi_width = tm->visible.x;
modeinfo.vi_height = tm->visible.y;
/* XXX should be added to libvgl */
if (ioctl(0, FBIO_FINDMODE, &modeinfo))
return -1;
DPRINT("Setting VGLlib mode %d (0x%x)\n",
modeinfo.vi_mode, modeinfo.vi_mode);
/* Terminate any current mode before initialising another */
if (priv->vgl_init_done) {
priv->vgl_init_done = 0;
VGLEnd();
}
/* XXX should be in VGL */
if ((modeinfo.vi_mode >= M_B40x25) && (modeinfo.vi_mode <= M_VGA_M90x60))
modenum = _IO('S', modeinfo.vi_mode);
if ((modeinfo.vi_mode >= M_TEXT_80x25) && (modeinfo.vi_mode <= M_TEXT_132x60))
modenum = _IO('S', modeinfo.vi_mode);
if ((modeinfo.vi_mode >= M_VESA_CG640x400) &&
(modeinfo.vi_mode <= M_VESA_FULL_1280))
modenum = _IO('V', modeinfo.vi_mode - M_VESA_BASE);
if ((err = VGLInit(modenum)) != 0) {
DPRINT("display-vgl: setting mode 0x%x failed with error %d\n",
modeinfo.vi_mode, err);
return GGI_EFATAL;
}
priv->vgl_init_done = 1;
if (priv->vgl_use_db) {
_GGI_vgl_freedbs(vis);
/* Set up DirectBuffer(s) */
for (i = 0; i<tm->frames; i++) {
if (LIBGGI_FB_SIZE(tm) >
(unsigned)(VGLDisplay->Xsize*VGLDisplay->Ysize*
pixelBytes)) {
fprintf(stderr, "display-vgl: framebuffer too large! (%d > %d*%d*%d)\n",
LIBGGI_FB_SIZE(tm),
VGLDisplay->Xsize, VGLDisplay->Ysize,
pixelBytes);
return GGI_ENOMEM;
}
_ggi_db_add_buffer(LIBGGI_APPLIST(vis), _ggi_db_get_new());
LIBGGI_APPBUFS(vis)[i]->frame = i;
LIBGGI_APPBUFS(vis)[i]->type = GGI_DB_NORMAL | GGI_DB_SIMPLE_PLB;
LIBGGI_APPBUFS(vis)[i]->read = VGLDisplay->Bitmap;
LIBGGI_APPBUFS(vis)[i]->write = VGLDisplay->Bitmap;
LIBGGI_APPBUFS(vis)[i]->layout = blPixelLinearBuffer;
LIBGGI_APPBUFS(vis)[i]->buffer.plb.stride
= GT_ByPPP(tm->virt.x, tm->graphtype);
}
}
/* Save mode info returned by the VESA driver */
bcopy(&modeinfo, &priv->modeinfo, sizeof(priv->modeinfo));
/* Palette */
if (vis->palette) {
free(vis->palette);
vis->palette = NULL;
}
if (priv->savepalette) {
free(priv->savepalette);
priv->savepalette = NULL;
}
if (GT_SCHEME(tm->graphtype) == GT_PALETTE) {
int len = 1 << GT_DEPTH(tm->graphtype);
vis->palette = malloc(len * sizeof(ggi_color));
if (vis->palette == NULL) return GGI_EFATAL;
priv->savepalette = malloc(sizeof(int) * (len*3));
if (priv->savepalette == NULL) return GGI_EFATAL;
/* Set an initial palette */
ggiSetColorfulPalette(vis);
}
/* Set up pixel format */
memset(LIBGGI_PIXFMT(vis), 0, sizeof(ggi_pixelformat));
LIBGGI_PIXFMT(vis)->size = GT_SIZE(gt);
LIBGGI_PIXFMT(vis)->depth = GT_DEPTH(gt);
switch (GT_SCHEME(gt)) {
case GT_PALETTE:
case GT_GREYSCALE:
LIBGGI_PIXFMT(vis)->clut_mask = (1 << GT_DEPTH(gt)) - 1;
break;
case GT_TRUECOLOR:
DPRINT_MODE("display-vgl: RGB %d:%d:%d offsets %d:%d:%d\n",
priv->modeinfo.vi_pixel_fsizes[VGL_RED_INDEX],
priv->modeinfo.vi_pixel_fsizes[VGL_GREEN_INDEX],
priv->modeinfo.vi_pixel_fsizes[VGL_BLUE_INDEX],
priv->modeinfo.vi_pixel_fields[VGL_RED_INDEX],
priv->modeinfo.vi_pixel_fields[VGL_GREEN_INDEX],
priv->modeinfo.vi_pixel_fields[VGL_BLUE_INDEX]);
LIBGGI_PIXFMT(vis)->red_mask =
((1 << priv->modeinfo.vi_pixel_fsizes[VGL_RED_INDEX]) - 1) <<
priv->modeinfo.vi_pixel_fields[VGL_RED_INDEX];
LIBGGI_PIXFMT(vis)->green_mask =
((1 << priv->modeinfo.vi_pixel_fsizes[VGL_GREEN_INDEX]) - 1) <<
priv->modeinfo.vi_pixel_fields[VGL_GREEN_INDEX];
LIBGGI_PIXFMT(vis)->blue_mask =
((1 << priv->modeinfo.vi_pixel_fsizes[VGL_BLUE_INDEX]) - 1) <<
priv->modeinfo.vi_pixel_fields[VGL_BLUE_INDEX];
break;
case GT_TEXT:
/* Assumes VGA text */
LIBGGI_PIXFMT(vis)->texture_mask = 0x00ff;
LIBGGI_PIXFMT(vis)->fg_mask = 0x0f00;
LIBGGI_PIXFMT(vis)->bg_mask = 0xf000;
break;
}
_ggi_build_pixfmt(LIBGGI_PIXFMT(vis));
memcpy(LIBGGI_MODE(vis),tm,sizeof(ggi_mode));
_ggiZapMode(vis, 0);
for(id = 1; 0 == GGI_vgl_getapi(vis, id, sugname, args); id++) {
if (_ggiOpenDL(vis, _ggiGetConfigHandle(), sugname, args, NULL)) {
fprintf(stderr,"display-vgl: Can't open the %s (%s) library.\n",
sugname, args);
return GGI_EFATAL;
} else {
DPRINT("Success in loading %s (%s)\n", sugname, args);
}
}
if (!priv->vgl_use_db) {
vis->opdraw->putpixel = GGI_vgl_putpixel;
vis->opdraw->putpixel_nc = GGI_vgl_putpixel_nc;
vis->opdraw->getpixel = GGI_vgl_getpixel;
vis->opdraw->drawpixel = GGI_vgl_drawpixel;
vis->opdraw->drawpixel_nc = GGI_vgl_drawpixel_nc;
vis->opdraw->drawhline = GGI_vgl_drawhline;
vis->opdraw->drawhline_nc = GGI_vgl_drawhline_nc;
vis->opdraw->drawvline = GGI_vgl_drawvline;
vis->opdraw->drawvline_nc = GGI_vgl_drawvline_nc;
vis->opdraw->drawbox = GGI_vgl_drawbox;
vis->opdraw->drawline = GGI_vgl_drawline;
vis->opdraw->puthline = GGI_vgl_puthline;
vis->opdraw->putbox = GGI_vgl_putbox;
} else {
vis->opdraw->setorigin = GGI_vgl_setorigin;
}
if (GT_SCHEME(tm->graphtype) == GT_PALETTE) {
vis->opcolor->setpalvec = GGI_vgl_setpalvec;
}
if(priv->vgl_use_db) {
for(i = 0; i<tm->frames; i++)
LIBGGI_APPBUFS(vis)[i]->buffer.plb.pixelformat =
LIBGGI_PIXFMT(vis);
}
ggiIndicateChange(vis, GGI_CHG_APILIST);
return 0;
}
SDL_Surface *VGL_SetVideoMode(_THIS, SDL_Surface *current,
int width, int height, int bpp, Uint32 flags)
{
int mode_found;
int i;
VGLMode **modes;
modes = VGLListModes(bpp, V_INFO_MM_DIRECT | V_INFO_MM_PACKED);
mode_found = 0;
for (i = 0; modes[i] != NULL; i++) {
if ((modes[i]->ModeInfo.Xsize == width) &&
(modes[i]->ModeInfo.Ysize == height) &&
((modes[i]->ModeInfo.Type == VIDBUF8) ||
(modes[i]->ModeInfo.Type == VIDBUF16) ||
(modes[i]->ModeInfo.Type == VIDBUF32))) {
mode_found = 1;
break;
}
}
if (mode_found == 0) {
SDL_SetError("No matching video mode found");
return NULL;
}
/* Shutdown previous videomode (if any) */
if (VGLCurMode != NULL)
VGLEnd();
/* Try to set the requested linear video mode */
if (VGLInit(modes[i]->ModeId) != 0) {
SDL_SetError("Unable to switch to requested mode");
return NULL;
}
VGLCurMode = SDL_realloc(VGLCurMode, sizeof(VGLMode));
VGLCurMode->ModeInfo = *VGLDisplay;
VGLCurMode->Depth = modes[i]->Depth;
VGLCurMode->ModeId = modes[i]->ModeId;
VGLCurMode->Rmask = modes[i]->Rmask;
VGLCurMode->Gmask = modes[i]->Gmask;
VGLCurMode->Bmask = modes[i]->Bmask;
/* Workaround a bug in libvgl */
if (VGLCurMode->ModeInfo.PixelBytes == 0)
(VGLCurMode->ModeInfo.PixelBytes = 1);
current->w = VGLCurMode->ModeInfo.Xsize;
current->h = VGLCurMode->ModeInfo.Ysize;
current->pixels = VGLCurMode->ModeInfo.Bitmap;
current->pitch = VGLCurMode->ModeInfo.Xsize *
VGLCurMode->ModeInfo.PixelBytes;
current->flags = (SDL_FULLSCREEN | SDL_HWSURFACE);
/* Check if we are in a pseudo-color mode */
if (VGLCurMode->ModeInfo.Type == VIDBUF8)
current->flags |= SDL_HWPALETTE;
/* Check if we can do doublebuffering */
if (flags & SDL_DOUBLEBUF) {
if (VGLCurMode->ModeInfo.Xsize * 2 <=
VGLCurMode->ModeInfo.VYsize) {
current->flags |= SDL_DOUBLEBUF;
flip_page = 0;
flip_address[0] = (byte *)current->pixels;
flip_address[1] = (byte *)current->pixels +
current->h * current->pitch;
VGL_FlipHWSurface(this, current);
}
}
if (! SDL_ReallocFormat(current, modes[i]->Depth, VGLCurMode->Rmask,
VGLCurMode->Gmask, VGLCurMode->Bmask, 0)) {
return NULL;
}
/* Update hardware acceleration info */
VGL_UpdateVideoInfo(this);
/* Set the blit function */
this->UpdateRects = VGL_DirectUpdate;
/* We're done */
return current;
}