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setup.c
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setup.c
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#include "lab3d.h"
#ifdef USE_OSS
#define MUSIC_SOURCES 3
#else
#ifdef WIN32
#define MUSIC_SOURCES 3
#include "objbase.h"
#include "shlobj.h"
#else
#define MUSIC_SOURCES 2
#endif
#endif
#ifdef WIN32
HRESULT CreateLink(LPCSTR lpszPathObj,
LPSTR lpszPathLink, LPSTR lpszDesc,
LPSTR lpszArgs) {
HRESULT hres;
IShellLink* psl;
char p[MAX_PATH];
CoInitialize(NULL);
hres = CoCreateInstance(&CLSID_ShellLink, NULL,
CLSCTX_INPROC_SERVER, &IID_IShellLink,
(void *)&psl);
if (SUCCEEDED(hres)) {
IPersistFile* ppf;
GetCurrentDirectory(MAX_PATH, p);
psl->lpVtbl->SetWorkingDirectory(psl, p);
hres=psl->lpVtbl->SetPath(psl, lpszPathObj);
psl->lpVtbl->SetArguments(psl, lpszArgs);
psl->lpVtbl->SetDescription(psl, lpszDesc);
hres = psl->lpVtbl->QueryInterface(psl, &IID_IPersistFile,
(void *)&ppf);
if (SUCCEEDED(hres)) {
WORD wsz[MAX_PATH];
fprintf(stderr,"Trying to save shortcut...\n");
MultiByteToWideChar(CP_ACP, 0, lpszPathLink, -1,
wsz, MAX_PATH);
hres = ppf->lpVtbl->Save(ppf, wsz, TRUE);
ppf->lpVtbl->Release(ppf);
if (SUCCEEDED(hres))
fprintf(stderr,"Done.\n");
}
psl->lpVtbl->Release(psl);
}
CoUninitialize();
return hres;
}
void createshortcut(void) {
ITEMIDLIST *l;
char p[MAX_PATH];
char p2[MAX_PATH];
char p3[MAX_PATH];
int i;
fprintf(stderr,"Getting desktop location.\n");
if (SHGetSpecialFolderLocation(GetDesktopWindow(),
CSIDL_DESKTOPDIRECTORY,&l)!=NOERROR)
return;
fprintf(stderr,"Converting...\n");
if (SHGetPathFromIDList(l,p)!=TRUE) return;
fprintf(stderr,"Desktop location is %s.\n",p);
i=strlen(p);
if (i>MAX_PATH-20) return;
if (p[i-1]=='\\') p[i-1]=0;
strcpy(p3,p);
strcat(p3,"\\Ken's Labyrinth.lnk");
fprintf(stderr,"Creating link as %s.\n",p3);
GetCurrentDirectory(MAX_PATH,p2);
i=strlen(p2);
if (i>MAX_PATH-10) return;
if (p2[i-1]=='\\') p2[i-1]=0;
strcat(p2,"\\ken.exe");
CreateLink(p2, p3,"Ken's Labyrinth","");
strcpy(p3,p);
strcat(p3,"\\Ken's Labyrinth Setup.lnk");
CreateLink(p2, p3,"Ken's Labyrinth Setup","-setup");
}
#endif
static int inputdevice=1,resolutionnumber=3,nearest=0;
static int music=1,sound=1,fullscr=1,cheat=0,channel=1,musicchannel=1;
static int soundblock=0,timing=0,texturedepth=1,scaling=2;
static char keynames[numkeys][30]={
"Move FORWARD",
"Move BACKWARD",
"Turn LEFT",
"Turn RIGHT",
"STRAFE (walk sideways)",
"STAND HIGH",
"STAND LOW",
"RUN",
"FIRE",
"FIREBALLS (red)",
"BOUNCY-BULLETS (green)",
"HEAT-SEEKING MISSILES",
"UNLOCK / OPEN / CLOSE / USE",
"CHEAT for more life",
"RAISE / LOWER STATUS BAR",
"PAUSE GAME",
"MUTE KEY",
"SHOW MENU"
};
static char axisnames[numaxes][30]={
"Move Forward/Back",
"Turn Left/Right",
"Strafe",
"Stand High/Low"
};
static char axisinst[numaxes][30]={
"FORWARD",
"LEFT",
"LEFT",
"UP"
};
static char jaxisnames[numjoyaxes][30]={
"X Axis",
"Y Axis",
"Axis 3",
"Axis 4",
"Axis 5",
"Axis 6"
};
static int newdefaultkey[numkeys]={
SDLK_UP,
SDLK_DOWN,
SDLK_LEFT,
SDLK_RIGHT,
SDLK_RCTRL,
SDLK_a,
SDLK_z,
SDLK_LSHIFT,
SDLK_LCTRL,
SDLK_F1,
SDLK_F2,
SDLK_F3,
SDLK_SPACE,
SDLK_BACKSPACE,
SDLK_RETURN,
SDLK_p,
SDLK_m,
SDLK_ESCAPE
};
static int newdefaultbutton[numkeys]={
-1,
-1,
-1,
-1,
-1,
-1,
-1,
-1,
0,
-1,
-1,
-1,
1,
-1,
-1,
-1,
-1,
-1
};
static int newdefaultaxis[numaxes]={
2,
1,
0,
0
};
static char inputdevicemenu[4][30]={
"Keyboard only",
"Keyboard + mouse",
"Keyboard + joystick",
"Keyboard + mouse + joystick"
};
/* Predefined resolutions for backward compatibility with early betas. */
static int resx[19]={360,512,640,800,1024,1152,1280,1600,
320,320,400,480,640,720,720,960,1920,1920,1280};
static int resy[19]={240,384,480,600,768,864,1024,1200,
200,240,300,360,400,480,576,720,1080,1200,960};
static char resolutiontypemenu[3][30]={
"Fullscreen resolutions",
/* "Standard resolutions",
"Non-standard resolutions",*/
"Custom resolution",
"Return to setup menu"
};
static char resolutionstandardmenu[8][30]={
"360x240",
"512x384",
"640x480",
"800x600",
"1024x768",
"1152x864",
"1280x1024",
"1600x1200"
};
static char resolutionspecialmenu[11][30]={
"320x200",
"320x240",
"400x300",
"480x360",
"640x400",
"720x480",
"720x576",
"960x720",
"1920x1080",
"1920x1200",
"1280x960"
};
static char configureinputmenu[4][30]={
"Set Keys",
"Set Joystick Buttons",
"Set Axes",
"Return to setup menu"
};
static char fullscreenmenu[2][30]={
"Windowed",
"Fullscreen"
};
static char filtermenu[3][30]={
"Anisotropic filtering",
"Trilinear filtering",
"No filtering"
};
static char musicmenu[3][30]={
"No music",
"Adlib emulation",
"General MIDI",
};
static char soundmenu[2][30]={
"No sound",
"Digital sound effects"
};
static char channelmenu[2][30]={
"Mono",
"Stereo"
};
static char cheatmenu[3][30]={
"No cheats",
"LSHIFT-RSHIFT",
"LSHIFT-LCTRL"
};
static char soundblockmenu[10][30]={
"Default (11.6 ms)",
"1.5 ms",
"2.9 ms",
"5.8 ms",
"11.6 ms",
"23.2 ms",
"46.4 ms",
"92.9 ms",
"185.8 ms",
"371.5 ms"
};
static char timingmenu[2][30]={
"System timer",
"Sound output"
};
static char texturedepthmenu[3][30]={
"Driver default",
"32 bit",
"16 bit"
};
static char scalingtypemenu[4][30]={
"Fill screen (4:3 view)",
"Integer scale (4:3 view)",
"Fill screen (square pixels)",
"Integer scale (square pixels)"
};
void selectionmenu(int alts,char titles[][30],int *value) {
int i;
int j=12*alts+24;
drawmenu(304,j,menu);
for(i=0;i<alts;i++) {
strcpy(textbuf,titles[i]);
textprint(71,120-6*alts+12*i,lab3dversion?32:34);
}
finalisemenu();
if (j>240)
i=getselection(28,97-6*alts,*value,alts);
else
i=getselection(28,99-6*alts,*value,alts);
if (i>=0) *value=i;
}
int resolutionmenu(int alts,int start,char titles[][30],int def) {
int i;
int j=12*alts+24;
char t[12];
if (start<0) {
for(i=0;i<alts;i++) {
if (def>=10000)
sprintf(t,"%dx%d",def/10000,def%10000);
else
sprintf(t,"%dx%d",resx[def],resy[def]);
if (!strcmp(t,titles[i]))
break;
}
if (i<alts)
def=i;
else
def=0;
} else {
def-=start;
if (def<0) def=0;
if (def>=alts) def=0;
}
drawmenu(304,j,menu);
for(i=0;i<alts;i++) {
strcpy(textbuf,titles[i]);
textprint(71,120-6*alts+12*i,lab3dversion?32:34);
}
finalisemenu();
i=getselection(28,99-6*alts,def,alts);
if (i>=0) return i; else return -1;
}
int getnumber(void) {
unsigned char ch;
char buf[10];
K_INT16 i,j;
for(j=0;j<12;j++)
textbuf[j] = 8;
textbuf[12] = 0;
textprint(94,145+1,(char)0);
j = 0;
buf[0]=0;
ch = 0;
#if defined(USE_EGL_SDL)
SDL_EnableUNICODE(1);
#endif
while ((ch != 13) && (ch != 27))
{
while ((ch=getkeypress()) == 0)
{
textbuf[0] = 95;
textbuf[1] = 0;
textprint(94+(j<<3),145,(char)97);
glFlush();
SDL_Delay(10); /* Just to avoid soaking all CPU. */
textbuf[0] = 8;
textbuf[1] = 0;
textprint(94+(j<<3),145,(char)0);
glFlush();
SDL_Delay(10); /* Just to avoid soaking all CPU. */
}
if (ch == SDLK_DELETE)
{
buf[j] = ch;
for(j=0;j<10;j++)
buf[j] = 0;
for(j=0;j<12;j++)
textbuf[j] = 8;
textbuf[12] = 0;
textprint(94,145+1,(char)0);
j = 0;
ch = 0;
}
if ((ch == 8) && (j > 0))
{
j--, buf[j] = 0;
textbuf[0] = ch;
textbuf[1] = 0;
textprint(94+(j<<3),145+1,(char)0);
}
if ((ch >= 48) && (ch <= 57) && (j < 4))
{
textbuf[0] = ch;
textbuf[1] = 0;
textprint(94+(j<<3),145+1,(char)97);
buf[j] = ch;
if ((ch != 32) || (j > 0))
j++;
}
}
#if defined(USE_EGL_SDL)
SDL_EnableUNICODE(0);
#endif
for(i=0;i<256;i++)
keystatus[i] = 0;
if (ch==27) return -1;
return strtol(buf,NULL,10);
}
void customresolution(void) {
int x,y;
drawinputbox();
finalisemenu();
sprintf(&textbuf[0],"Enter screen width:");
textprint(180-(strlen(textbuf)<<2),135+1,(char)161);
x=getnumber();
if (x>0) {
drawinputbox();
finalisemenu();
sprintf(&textbuf[0],"Enter screen height:");
textprint(180-(strlen(textbuf)<<2),135+1,(char)161);
y=getnumber();
if (y>0)
resolutionnumber=x*10000+y;
}
}
void setupinputdevices(void) {
selectionmenu(4,inputdevicemenu,&inputdevice);
}
int modecompare(const void *a, const void *b) {
SDL_Rect *c=*(SDL_Rect **)a;
SDL_Rect *d=*(SDL_Rect **)b;
return ((K_INT32)d->w*((K_INT32)d->h)-((K_INT32)c->w)*((K_INT32)c->h));
}
void setupsetresolution(void) {
int a;
#if defined(USE_EGL_SDL)
int i,m;
int resolutionmenusize;
int detectedresolution[11];
char resolutiondetectmenu[11][30];
SDL_Rect **modes,**umodes;
#endif
a=resolutionmenu(3,0,resolutiontypemenu,0);
#if defined(USE_EGL_SDL)
switch(a) {
case 0:
modes=umodes=SDL_ListModes(NULL,SDL_FULLSCREEN);
if ((modes==NULL)||(modes==(SDL_Rect **)-1))
return;
m=0;
while(*modes) {
m++;
modes++;
}
modes=malloc(sizeof(SDL_Rect *)*(m+1));
for(i=0;i<=m;i++)
modes[i]=umodes[i];
qsort(modes, m, sizeof(SDL_Rect *), modecompare);
i=0;
do {
resolutionmenusize=0;
while(modes[i]&&(resolutionmenusize<10)) {
if (modes[i]->w<10000&&
modes[i]->h<10000) {
detectedresolution[resolutionmenusize]=
modes[i]->w*10000+modes[i]->h;
sprintf(resolutiondetectmenu[resolutionmenusize],
"%dx%d",
detectedresolution[resolutionmenusize]/10000,
detectedresolution[resolutionmenusize]%10000);
resolutionmenusize++;
}
i++;
}
if (modes[i]) {
strcpy(resolutiondetectmenu[resolutionmenusize],"More...");
}
a=resolutionmenu(resolutionmenusize+(modes[i]!=0),
-100,resolutiondetectmenu,
resolutionnumber);
if (a<0) {free(modes); return;}
} while(a==resolutionmenusize);
resolutionnumber=detectedresolution[a];
free(modes);
break;
/*
case 1:
a=resolutionmenu(8,0,resolutionstandardmenu,resolutionnumber);
if (a>=0) resolutionnumber=a;
break;
case 2:
a=resolutionmenu(11,8,resolutionspecialmenu,resolutionnumber);
if (a>=0) resolutionnumber=a+8;
break;
*/
case 1:
customresolution();
break;
}
#endif
}
void setupsetfullscreen(void) {
selectionmenu(2,fullscreenmenu,&fullscr);
}
void setupsetfiltering(void) {
selectionmenu(3,filtermenu,&nearest);
}
void setupsetmusic(void) {
selectionmenu(MUSIC_SOURCES,musicmenu,&music);
}
void setupsetsound(void) {
selectionmenu(2,soundmenu,&sound);
}
void setupcheatmenu(void) {
selectionmenu(3,cheatmenu,&cheat);
}
void setupsetsoundchannels(void) {
selectionmenu(2,channelmenu,&channel);
}
void setupsetmusicchannels(void) {
selectionmenu(2,channelmenu,&musicchannel);
}
void setupsoundblockmenu(void) {
selectionmenu(10,soundblockmenu,&soundblock);
}
void setuptimingmenu(void) {
selectionmenu(2,timingmenu,&timing);
}
void setuptexturedepthmenu(void) {
selectionmenu(3,texturedepthmenu,&texturedepth);
}
void setupscalingmodemenu(void) {
selectionmenu(4,scalingtypemenu,&scaling);
}
void setupsetkeys(void) {
int i=0,j,quit=0,sk;
i=0;
while(!quit) {
drawmenu(360,240,menu);
for(j=0;j<numkeys;j++) {
strcpy(textbuf,keynames[j]);
textprint(31,13+12*j,lab3dversion?32:34);
strncpy(textbuf,SDL_GetKeyName(newkeydefs[j]),11);
textbuf[11]=0;
textprint(261,13+12*j,lab3dversion?32:34);
}
finalisemenu();
i=getselection(-12,-9,i,numkeys);
if (i<0) quit=1;
else if (i>=numkeys) quit=1;
else {
j=-1;
while(j<0) {
#if defined(WIZ) || defined(CAANOO)
j = sk = GetButtonsWizCaanoo();
#else
SDL_Event event;
while(SDL_PollEvent(&event))
{
switch(event.type)
{
case SDL_KEYDOWN:
sk=event.key.keysym.sym;
if (sk<SDLKEYS) {
j=sk;
}
break;
default:
break;
}
}
#endif
SDL_Delay(10);
}
newkeydefs[i]=j;
}
}
}
void setupsetbuttons(void) {
int i=0,j,quit=0,sk,cb;
SDL_Event event;
i=0;
while(!quit) {
drawmenu(360,240,menu);
for(j=0;j<numkeys;j++) {
strcpy(textbuf,keynames[j]);
textprint(31,13+12*j,lab3dversion?32:34);
cb=buttondefs[j];
if (cb==-1) {
strcpy(textbuf,"None");
} else {
sprintf(textbuf,"Button %d",cb+1);
}
textbuf[11]=0;
textprint(261,13+12*j,lab3dversion?32:34);
}
finalisemenu();
i=getselection(-12,-9,i,numkeys);
if (i<0) quit=1;
else if (i>=numkeys) quit=1;
else {
j=-2;
while(j<-1) {
while(SDL_PollEvent(&event))
{
switch(event.type)
{
case SDL_JOYBUTTONDOWN:
sk=event.jbutton.button;
if (sk<numjoybuttons) {
j=sk;
}
break;
case SDL_KEYDOWN:
j=-1;
break;
default:
break;
}
}
SDL_Delay(10);
}
buttondefs[i]=j;
}
}
}
#define AXIS_NOVALUE (~0)
void setupsetaxes(void) {
int i=0,j,quit=0,jdone=0,sk,cb;
int axisvalues[numjoyaxes];
SDL_Event event;
for (i=0;i<numjoyaxes;i++) {
axisvalues[i]=AXIS_NOVALUE;
}
i=0;
while(!quit) {
drawmenu(360,240,menu);
for(j=0;j<numaxes;j++) {
strcpy(textbuf,axisnames[j]);
textprint(31,13+12*j,lab3dversion?32:34);
cb=axisdefs[j];
if (cb==0) {
strcpy(textbuf,"None");
} else {
strncpy(textbuf,jaxisnames[abs(cb)-1],11);
}
textbuf[11]=0;
if (cb < 0)
strcat(textbuf," INV");
textbuf[11]=0;
textprint(261,13+12*j,lab3dversion?32:34);
}
finalisemenu();
i=getselection(-12,-9,i,numaxes);
if (i<0) quit=1;
else if (i>=numaxes) quit=1;
else {
drawmenu(304,72,menu);
strcpy(textbuf,"Move joystick in");
textprint((360-(8*strlen(textbuf)))/2,((240-72)/2)+12+0*12,lab3dversion?32:34);
strcpy(textbuf,axisinst[i]);
textprint((360-(8*strlen(textbuf)))/2,((240-72)/2)+12+1*12,0);
strcpy(textbuf,"direction, or press");
textprint((360-(8*strlen(textbuf)))/2,((240-72)/2)+12+2*12,lab3dversion?32:34);
strcpy(textbuf,"any key to delete");
textprint((360-(8*strlen(textbuf)))/2,((240-72)/2)+12+3*12,lab3dversion?32:34);
finalisemenu();
glFlush();
jdone=0;
while(!jdone) {
while(SDL_PollEvent(&event))
{
switch(event.type)
{
case SDL_JOYAXISMOTION:
sk=event.jaxis.axis;
if (sk<numjoyaxes) {
if (axisvalues[sk]!=AXIS_NOVALUE) {
int diff=event.jaxis.value-axisvalues[sk];
if (diff>8192) {
j=-sk-1;
jdone=1;
}
if (diff<-8192) {
j=sk+1;
jdone=1;
}
} else axisvalues[sk]=event.jaxis.value;
}
break;
case SDL_KEYDOWN:
j=0;
jdone=1;
break;
default:
break;
}
}
SDL_Delay(10);
}
axisdefs[i]=j;
}
}
}
void setupconfigureinput(void) {
int a,quit=0;
while (!quit) {
a=resolutionmenu(4,0,configureinputmenu,0);
switch(a) {
case 0:
setupsetkeys();
break;
case 1:
setupsetbuttons();
break;
case 2:
setupsetaxes();
break;
default:
quit=1;
break;
}
}
}
void setupmenu(void) {
int quit=0,sel=0;
while(!quit) {
drawmenu(360,240,menu);
strcpy(textbuf,"LAB3D/SDL setup menu");
textprint(81,22,126);
strcpy(textbuf,"Input: ");
strcat(textbuf,inputdevicemenu[inputdevice]);
textprint(51,36,lab3dversion?32:34);
strcpy(textbuf,"Configure Input");
textprint(51,48,lab3dversion?32:34);
strcpy(textbuf,"Resolution: ");
if (resolutionnumber<8)
strcat(textbuf,resolutionstandardmenu[resolutionnumber]);
else if (resolutionnumber<19)
strcat(textbuf,resolutionspecialmenu[resolutionnumber-8]);
else sprintf(textbuf,"Resolution: %dx%d",resolutionnumber/10000,
resolutionnumber%10000);
textprint(51,60,64);
strcpy(textbuf,"Display type: ");
strcat(textbuf,fullscreenmenu[fullscr]);
textprint(51,72,64);
strcpy(textbuf,"Filtering: ");
strcat(textbuf,filtermenu[nearest]);
textprint(51,84,64);
strcpy(textbuf,"Music: ");
strcat(textbuf,musicmenu[music]);
textprint(51,96,96);
strcpy(textbuf,"Effects: ");
strcat(textbuf,soundmenu[sound]);
textprint(51,108,96);
strcpy(textbuf,"Sound channels: ");
strcat(textbuf,channelmenu[channel]);
textprint(51,120,96);
strcpy(textbuf,"Music channels: ");
strcat(textbuf,channelmenu[musicchannel]);
textprint(51,132,96);
strcpy(textbuf,"Cheats: ");
strcat(textbuf,cheatmenu[cheat]);
textprint(51,144,96);
strcpy(textbuf,"Sound block size: ");
strcat(textbuf,soundblockmenu[soundblock]);
textprint(51,156,lab3dversion?32:34);
strcpy(textbuf,"Texture colour depth: ");
strcat(textbuf,texturedepthmenu[texturedepth]);
textprint(51,168,lab3dversion?32:34);
strcpy(textbuf,"View: ");
strcat(textbuf,scalingtypemenu[scaling]);
textprint(51,180,lab3dversion?32:34);
strcpy(textbuf,"Exit setup");
textprint(51,192,lab3dversion?128:130);
#ifdef WIN32
strcpy(textbuf,"Create desktop shortcuts");
textprint(51,204,96);
#endif
strcpy(textbuf,"Use cursor keys and Return to select.");
textprint(31,220,lab3dversion?32:34);
finalisemenu();
#ifdef WIN32
if ((sel = getselection(12,15,sel,15)) < 0)
#else
if ((sel = getselection(12,15,sel,14)) < 0)
#endif
quit=1;
else {
switch(sel) {
case 0:
setupinputdevices();
break;
case 1:
setupconfigureinput();
break;
case 2:
setupsetresolution();
break;
case 3:
setupsetfullscreen();
break;
case 4:
setupsetfiltering();
break;
case 5:
setupsetmusic();
break;
case 6:
setupsetsound();
break;
case 7:
setupsetsoundchannels();
break;
case 8:
setupsetmusicchannels();
break;
case 9:
setupcheatmenu();
break;
case 10:
setupsoundblockmenu();
break;
case 11:
setuptexturedepthmenu();
break;
case 12:
setupscalingmodemenu();
break;
#ifdef WIN32
case 14:
createshortcut();
break;
#endif
case 13:
quit=1;
break;
}
}
}
}
void configure(void) {
int div1,div2;
if (resolutionnumber<19) {
screenwidth=resx[resolutionnumber];
screenheight=resy[resolutionnumber];
} else {
/* Encoding chosen to be human-readable. Backwards compatibility
kludge. */
screenwidth=resolutionnumber/10000;
screenheight=resolutionnumber%10000;
}
fullscreen=fullscr;
fullfilter=nearest==2?GL_NEAREST:GL_LINEAR_MIPMAP_LINEAR;
partialfilter=nearest==2?GL_NEAREST:GL_LINEAR;
anisotropic=(nearest==0);
speechstatus = sound?2:0;
switch(music) {
case 2:
musicsource=1;
break;
case 1:
musicsource=2;
break;
default:
musicsource=-1;
break;
}
moustat = ((3-inputdevice)&1);
joystat = ((3-inputdevice)>>1);
cheatenable=cheat;
if (channel||musicchannel)
channels=2;
else
channels=1;
soundpan=channel;
musicpan=musicchannel;
soundblocksize=/* channels* */
((musicsource==2)?SOUNDBLOCKSIZE44KHZ:SOUNDBLOCKSIZE11KHZ);
if (soundblock>0) {
soundblocksize>>=4;
soundblocksize<<=soundblock;
}
soundtimer=0;
#ifdef OPENGLES
colourformat = GL_RGBA;
#else
switch(texturedepth) {
case 1:
colourformat=GL_RGBA8;
break;
case 2:
colourformat=GL_RGBA4;
break;
default:
colourformat=GL_RGBA;
}
#endif
aspw=1.0;
asph=1.0;
switch(scaling) {
case 1:
case 3:
div1=screenwidth/320;
div2=screenheight/200;
if (div2<div1) div1=div2;
if (div1<1) {
fprintf(stderr,
"Warning: resolution must be 320x200 or more"
" for integer scaling.\n");
virtualscreenwidth=360;
virtualscreenheight=240;
} else {
virtualscreenwidth=screenwidth/div1;
virtualscreenheight=screenheight/div1;
}
if (scaling==3) {
if (screenwidth*3>screenheight*4)
aspw=((((double)screenwidth*3.0))/(((double)screenheight)*4.0));
else
asph=((((double)screenheight)*4.0))/(((double)screenwidth*3.0));
}
break;
case 0: