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svn-id: r3408
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Ludvig Strigeus 2001-10-09 14:30:12 +00:00
commit c30932afbe
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26
Makefile Normal file
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CC = gcc
CFLAGS = -g -O2 -Wno-multichar
DEFINES = -DUNIX -DSCUMM_BIG_ENDIAN -DSCUMM_NEED_ALIGNMENT
LDFLAGS = `sdl-config --libs`
INCLUDES= `sdl-config --cflags`
CPPFLAGS= $(DEFINES) $(INCLUDES)
INCS = scumm.h scummsys.h stdafx.h
OBJS = actor.o boxes.o costume.o gfx.o object.o resource.o \
saveload.o script.o scummvm.o sound.o string.o \
sys.o verbs.o sdl.o
.cpp.o:
$(CC) $(CFLAGS) $(CPPFLAGS) -c $(<)
all: scummvm
scummvm: $(OBJS)
$(CC) $(LDFLAGS) -o $(@) $(OBJS) $(LIBS)
clean:
rm -f $(OBJS) scummvm
check:
$(OBJS): $(INCS)

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actor.cpp Normal file
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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Change Log:
* $Log$
* Revision 1.1 2001/10/09 14:30:14 strigeus
* Initial revision
*
*
*/
#include "stdafx.h"
#include "scumm.h"
void Scumm::initActor(Actor *a, int mode) {
if (mode) {
a->facing = 2;
a->costume = 0;
a->room = 0;
a->x = 0;
a->y = 0;
}
a->elevation = 0;
a->width = 0x18;
a->talkColor = 0xF;
a->scaley = a->scalex = 0xFF;
a->charset = 0;
a->sound = 0;
a->moving = 0;
setActorWalkSpeed(a, 8, 2);
a->ignoreBoxes = 0;
a->neverZClip = 0;
a->initFrame = 1;
a->walkFrame = 2;
a->standFrame = 3;
a->talkFrame1 = 4;
a->talkFrame2 = 5;
_classData[a->number] = 0;
}
void Scumm::setActorWalkSpeed(Actor *a, int speedx, int speedy) {
if (speedx == a->speedx && speedy == a->speedy)
return;
a->speedx = speedx;
a->speedy = speedy;
if (a->moving) {
calcMovementFactor(a, a->walkdata.newx, a->walkdata.newy);
}
}
int Scumm::calcMovementFactor(Actor *a, int newX, int newY) {
int actorX, actorY;
int diffX, diffY;
int32 XYFactor, YXFactor;
int32 tmp;
actorX = a->x;
actorY = a->y;
if (actorX == newX && actorY == newY)
return 0;
diffX = newX - actorX;
diffY = newY - actorY;
YXFactor = a->speedy<<16;
if (diffY < 0)
YXFactor = -YXFactor;
if (diffY != 0) {
XYFactor = YXFactor * diffX / diffY;
} else {
XYFactor = YXFactor * diffX;
YXFactor = 0;
}
tmp = XYFactor >> 16;
if (tmp<0)
tmp = -tmp;
if (tmp > a->speedx) {
XYFactor = a->speedx<<16;
if (diffX < 0)
XYFactor = -XYFactor;
if (diffX != 0) {
YXFactor = XYFactor * diffY / diffX;
} else {
YXFactor = XYFactor * diffY;
XYFactor = 0;
}
}
a->walkdata.x = actorX;
a->walkdata.y = actorY;
a->walkdata.newx = newX;
a->walkdata.newy = newY;
a->walkdata.XYFactor = XYFactor;
a->walkdata.YXFactor = YXFactor;
a->walkdata.xfrac = 0;
a->walkdata.yfrac = 0;
return actorWalkStep(a);
}
int Scumm::actorWalkStep(Actor *a) {
int32 XYFactor, YXFactor;
int actorX, actorY, newx, newy;
int newXDist;
int32 tmp,tmp2;
byte direction;
a->needRedraw = true;
a->needBgReset = true;
XYFactor = a->walkdata.XYFactor;
YXFactor = a->walkdata.YXFactor;
direction = XYFactor>0 ? 1 : 0;
if (abs(YXFactor) * 3 > abs(XYFactor))
direction = YXFactor>0 ? 2 : 3;
a->newDirection = direction;
direction = getProgrDirChange(a, 1);
if (!(a->moving&2) || a->facing!=direction) {
if (a->walkFrame != a->animIndex || a->facing != direction) {
startAnimActor(a, a->walkFrame, direction);
}
a->moving|=2;
}
actorX = a->walkdata.x;
actorY = a->walkdata.y;
newx = a->walkdata.newx;
newy = a->walkdata.newy;
if (a->walkbox != a->walkdata.curbox) {
if (checkXYInBoxBounds(a->walkdata.curbox, a->x, a->y)) {
a->walkbox = a->walkdata.curbox;
a->mask = getMaskFromBox(a->walkdata.curbox);
setupActorScale(a);
}
}
newXDist = abs(newx - actorX);
if (newXDist <= abs(a->x - actorX) &&
abs(newy - actorY) <= abs(a->y - actorY) ){
a->moving&=~2;
return 0;
}
XYFactor = (XYFactor>>8) * a->scalex;
YXFactor = (YXFactor>>8) * a->scalex;
tmp = ((a->x + 8000)<<16) + a->walkdata.xfrac + XYFactor;
tmp2 = (a->y<<16) + a->walkdata.yfrac + YXFactor;
a->x = (tmp>>16)-8000;
a->y = tmp2>>16;
if (abs(a->x - actorX) > newXDist) {
a->x = newx;
}
if (abs(a->y - actorY) > abs(newy - actorY)) {
a->y = newy;
}
a->walkdata.xfrac = tmp&0xFFFF;
a->walkdata.yfrac = tmp2&0xFFFF;
if (a->x == newx &&
a->y == newy) {
a->moving&=~2;
return 0;
}
return 1;
}
void Scumm::setupActorScale(Actor *a) {
uint16 scale;
byte *resptr;
if (a->ignoreBoxes != 0)
return;
scale = getBoxScale(a->walkbox);
if (scale & 0x8000) {
scale = (scale&0x7FFF)+1;
resptr = getResourceAddress(0xB, scale);
if (resptr==NULL)
error("Scale table %d not defined",scale);
if (a->y >= 0)
resptr += a->y;
scale = *resptr;
}
if (scale>255)
error("Actor %d at %d, scale %d out of range", a->number, a->y, scale);
a->scalex = (byte)scale;
a->scaley = (byte)scale;
}
int Scumm::getProgrDirChange(Actor *a, int mode) {
int flags;
byte facing, newdir;
byte XYflag, YXflag;
byte lookdir;
const byte direction_transtab[] = {
0,2,2,3,2,1,2,3,0,1,2,1,0,1,0,3
};
flags = 0;
if (!a->ignoreBoxes)
flags = getBoxFlags(a->walkbox);
facing = a->facing;
newdir = a->newDirection;
XYflag = a->walkdata.XYFactor>0 ? 1 : 0;
YXflag = a->walkdata.YXFactor>0 ? 1 : 0;
if ((flags&8) || getClass(a->number, 0x1E)) {
if (!(newdir&2))
newdir^=1;
XYflag = 1 - XYflag;
}
if ((flags&0x10) || getClass(a->number, 0x1D)) {
if (newdir&2)
newdir^=1;
YXflag = 1 - YXflag;
}
lookdir = direction_transtab[facing*4+newdir];
if (!(flags&=0x7))
return lookdir;
if (mode==0) {
lookdir = newdir;
if (flags==1 && newdir!=1)
lookdir = 0;
if (flags==2 && newdir!=3)
lookdir = 2;
} else {
if (flags==1)
lookdir = XYflag;
if (flags==2)
lookdir = 3 - YXflag;
}
if (flags==3)
lookdir=0;
if (flags==4)
lookdir=1;
if (flags==6)
lookdir=2;
if (flags==5)
lookdir = 3;
return lookdir;
}
void Scumm::startAnimActor(Actor *a, int frame, byte direction) {
if (frame==0x38)
frame = a->initFrame;
if (frame==0x39)
frame = a->walkFrame;
if (frame==0x3A)
frame = a->standFrame;
if (frame==0x3B)
frame = a->talkFrame1;
if (frame==0x3C)
frame = a->talkFrame2;
if (a->room == _currentRoom && a->costume) {
a->animProgress = 0;
a->cost.animCounter1 = 0;
a->needRedraw = true;
cost.loadCostume(a->costume);
if (a->initFrame==frame)
initActorCostumeData(a);
if (frame!=0x3E) {
decodeCostData(a, frame*4 + direction, -1);
}
if (a->facing != direction)
fixActorDirection(a, direction);
}
a->facing = direction;
a->needBgReset = true;
}
void Scumm::initActorCostumeData(Actor *a) {
CostumeData *cd = &a->cost;
int i;
cd->hdr = 0;
for (i=0; i<16; i++)
cd->a[i] = cd->b[i] = cd->c[i] = cd->d[i] = 0xFFFF;
}
void Scumm::fixActorDirection(Actor *a, byte direction) {
uint mask;
int i;
uint16 vald;
if (a->facing == direction)
return;
mask = 0x8000;
for (i=0; i<16; i++,mask>>=1) {
vald = a->cost.d[i];
if (vald==0xFFFF || (vald&3)==direction)
continue;
decodeCostData(a, (vald&0xFC)|direction, mask);
}
a->facing = direction;
}
void Scumm::decodeCostData(Actor *a, int frame, uint usemask) {
byte *p,*r;
uint mask,j;
int i;
byte extra,cmd;
byte *dataptr;
p = cost._ptr;
if (frame > p[6])
return;
r = p + READ_LE_UINT16(p + frame*2 + cost._numColors + 42);
if (r==p)
return;
dataptr = p + READ_LE_UINT16(p + cost._numColors + 8);
mask = READ_LE_UINT16(r);
r+=2;
i = 0;
do {
if (mask&0x8000) {
j = READ_LE_UINT16(r);
r+=2;
if (usemask&0x8000) {
if (j==0xFFFF) {
a->cost.a[i] = 0xFFFF;
a->cost.b[i] = 0;
a->cost.d[i] = frame;
} else {
extra = *r++;
cmd = dataptr[j];
if (cmd==0x7A) {
a->cost.hdr &= ~(1<<i);
} else if (cmd==0x79) {
a->cost.hdr |= (1<<i);
} else {
a->cost.a[i] = a->cost.b[i] = j;
a->cost.c[i] = j + (extra&0x7F);
if (extra&0x80)
a->cost.a[i] |= 0x8000;
a->cost.d[i] = frame;
}
}
} else {
if (j!=0xFFFF)
r++;
}
}
i++;
usemask <<= 1;
mask <<= 1;
} while ((uint16)mask);
}
void Scumm::putActor(Actor *a, int x, int y, byte room) {
if (a->visible && _currentRoom!=room && vm.vars[VAR_TALK_ACTOR]==a->number) {
clearMsgQueue();
}
a->x = x;
a->y = y;
a->room = room;
a->needRedraw = true;
a->needBgReset = true;
if (vm.vars[VAR_UNK_ACTOR]==a->number) {
dseg_3A76 = 1;
}
if (a->visible) {
if (_currentRoom == room) {
if (a->moving) {
startAnimActor(a, a->standFrame, a->facing);
a->moving = 0;
}
adjustActorPos(a);
} else {
hideActor(a);
}
} else {
if (_currentRoom == room)
showActor(a);
}
}
int Scumm::getActorXYPos(Actor *a) {
if (a->room != _currentRoom)
return -1;
_xPos = a->x;
_yPos = a->y;
return 0;
}
AdjustBoxResult Scumm::adjustXYToBeInBox(Actor *a, int x, int y) {
AdjustBoxResult abr,tmp;
int threshold;
uint best;
int box;
byte flags, b;
if (a && a->ignoreBoxes==0) {
threshold = 30;
while(1) {
box = getNumBoxes() - 1;
best = (uint)0xFFFF;
b = 0;
do {
flags = getBoxFlags(box);
if (flags&0x80 && (!(flags&0x20) || getClass(a->number, 0x1F)) )
continue;
if (!inBoxQuickReject(box, x, y, threshold))
continue;
if (checkXYInBoxBounds(box, x, y)) {
abr.x = x;
abr.y = y;
abr.dist = box;
return abr;
}
tmp = getClosestPtOnBox(box, x, y);
if (tmp.dist >= best)
continue;
abr.x = tmp.x;
abr.y = tmp.y;
if (tmp.dist==0) {
abr.dist = box;
return abr;
}
best = tmp.dist;
b = box;
} while (--box);
if (threshold==0 || threshold * threshold >= best) {
abr.dist = b;
return abr;
}
threshold = (threshold==30) ? 80 : 0;
}
} else {
abr.x = x;
abr.y = y;
abr.dist = 0;
}
return abr;
}
void Scumm::adjustActorPos(Actor *a) {
AdjustBoxResult abr;
byte flags;
abr = adjustXYToBeInBox(a, a->x, a->y);
a->x = abr.x;
a->y = abr.y;
a->walkbox = abr.dist; /* not a dist */
a->walkdata.destbox = abr.dist;
a->mask = getMaskFromBox(abr.dist);
a->walkdata.destx = -1;
setupActorScale(a);
a->moving = 0;
a->cost.animCounter2 = 0;
flags = getBoxFlags(a->walkbox);
if (flags&7) {
turnToDirection(a, a->facing);
}
}
void Scumm::hideActor(Actor *a) {
if (!a->visible)
return;
if (a->moving) {
startAnimActor(a, a->standFrame, a->facing);
a->moving = 0;
}
a->visible = false;
a->cost.animCounter2 = 0;
a->needRedraw = false;
a->needBgReset = true;
}
void Scumm::turnToDirection(Actor *a, int newdir) {
a->moving = 4;
a->newDirection = newdir;
}
void Scumm::showActor(Actor *a) {
if (_currentRoom == 0 || a->visible)
return;
adjustActorPos(a);
ensureResourceLoaded(3, a->costume);
if (a->costumeNeedsInit) {
startAnimActor(a, a->initFrame, a->facing);
a->costumeNeedsInit = false;
}
a->moving = 0;
a->visible = true;
a->needRedraw = true;
}
void Scumm::showActors() {
int i;
Actor *a;
for (i=1; i<13; i++) {
a = derefActor(i);
if (a->room == _currentRoom)
showActor(a);
}
}
void Scumm::stopTalk() {
int act;
_haveMsg = 0;
_talkDelay = 0;
act = vm.vars[VAR_TALK_ACTOR];
if (act && act<0x80) {
Actor *a = derefActorSafe(act, "stopTalk");
if (_currentRoom == a->room) {
startAnimActor(a, a->talkFrame2, a->facing);
}
vm.vars[VAR_TALK_ACTOR] = 0xFF;
}
_keepText = false;
restoreCharsetBg();
}
void Scumm::clearMsgQueue() {
_messagePtr = (byte*)" ";
stopTalk();
}
void Scumm::walkActors() {
int i;
Actor *a;
for (i=1; i<13; i++) {
a = derefActor(i);
if (a->room==_currentRoom)
walkActor(a);
}
}
void Scumm::playActorSounds() {
int i;
Actor *a;
for (i=1; i<13; i++) {
a = derefActor(i);
if (a->cost.animCounter2 && a->room==_currentRoom && a->sound) {
_currentScript = 0xFF;
addSoundToQueue(a->sound);
for (i=1; i<13; i++) {
a = derefActor(i);
a->cost.animCounter2 = 0;
}
return;
}
}
}
void Scumm::walkActor(Actor *a) {
int j;
if (!a->moving)
return;
if (!(a->moving&1)) {
if (a->moving&2 && actorWalkStep(a))
return;
if (a->moving&8) {
a->moving = 0;
j = a->walkdata.destbox;
if (j) {
a->walkbox = j;
a->mask = getMaskFromBox(j);
}
startAnimActor(a, a->standFrame, a->facing);
if (a->walkdata.destdir==0xFF ||
a->walkdata.destdir==a->newDirection)
return;
a->newDirection = a->walkdata.destdir;
a->moving = 4;
return;
}
if (a->moving&4) {
j = getProgrDirChange(a, 0);
if (a->facing != j)
startAnimActor(a, 0x3E, j);
else
a->moving = 0;
return;
}
a->walkbox = a->walkdata.curbox;
a->mask = getMaskFromBox(a->walkdata.curbox);
setupActorScale(a);
a->moving = (a->moving&2)|1;
}
do {
a->moving&=~1;
if (!a->walkbox) {
a->walkbox = a->walkdata.destbox;
a->walkdata.curbox = a->walkdata.destbox;
break;
}
if (a->walkbox == a->walkdata.destbox)
break;
j = getPathToDestBox(a->walkbox,a->walkdata.destbox);
if (j==0) {
a->walkdata.destbox = a->walkbox;
a->moving |= 8;
return;
}
a->walkdata.curbox = j;
if (findPathTowards(a, a->walkbox, j, a->walkdata.destbox))
break;
if (calcMovementFactor(a, _foundPathX, _foundPathY))
return;
a->walkbox = a->walkdata.curbox;
a->mask = getMaskFromBox(a->walkdata.curbox);
setupActorScale(a);
} while (1);
a->moving |= 8;
calcMovementFactor(a, a->walkdata.destx, a->walkdata.desty);
}
void Scumm::processActors() {
int i;
Actor *actors[13],*a,**ac,**ac2,*tmp;
int numactors = 0, cnt,cnt2;
for (i=1; i<13; i++) {
a = derefActor(i);
if (a->room == _currentRoom)
actors[numactors++] = a;
}
if (!numactors)
return;
ac = actors;
cnt = numactors;
do {
ac2 = actors;
cnt2 = numactors;
do {
if ( (*ac2)->y > (*ac)->y ) {
tmp = *ac;
*ac = *ac2;
*ac2 = tmp;
}
} while (ac2++, --cnt2);
} while (ac++,--cnt);
ac = actors;
cnt = numactors;
do {
a = *ac;
if (a->costume) {
setupActorScale(a);
setupCostumeRenderer(&cost, a);
setActorCostPalette(a);
checkHeap();
drawActorCostume(a);
checkHeap();
actorAnimate(a);
}
} while (ac++,--cnt);
}
void Scumm::setupCostumeRenderer(CostumeRenderer *c, Actor *a) {
c->_actorX = a->x - virtscr->xstart;
c->_actorY = a->y - a->elevation;
c->_zbuf = a->mask;
if (c->_zbuf > _numZBuffer)
c->_zbuf = _numZBuffer;
if (a->neverZClip)
c->_zbuf = a->neverZClip;
c->_scaleX = a->scalex;
c->_scaleY = a->scaley;
}
void Scumm::setActorCostPalette(Actor *a) {
int i;
byte color;
cost.loadCostume(a->costume);
for (i=0; i<cost._numColors; i++) {
color = a->palette[i];
if (color==255)
color = cost._ptr[8+i];
cost._palette[i] = color;
}
}
void Scumm::drawActorCostume(Actor *a) {
if (a==NULL || !a->needRedraw)
return;
a->top = 0xFF;
a->needRedraw = 0;
a->bottom = 0;
cost.loadCostume(a->costume);
cost._mirror = a->facing!=0 || (cost._ptr[7]&0x80);
if (cost.drawCostume(a)) {
a->needRedraw = true;
a->needBgReset = true;;
}
}
void Scumm::actorAnimate(Actor *a) {
if (a==NULL)
return;
a->animProgress++;
if (a->animProgress >= a->animSpeed) {
a->animProgress = 0;
cost.loadCostume(a->costume);
if (cost.animate(&a->cost)) {
a->needRedraw = true;
a->needBgReset = true;
}
}
}
void Scumm::setActorRedrawFlags() {
int i,j;
int bits;
for (i=0; i<40; i++) {
bits = actorDrawBits[_screenStartStrip+i];
if (bits&0x3FFF) {
for(j=0; j<13; j++) {
if ((bits&(1<<j)) && bits!=(1<<j)) {
Actor *a = derefActor(j);
a->needRedraw = true;
a->needBgReset = true;
}
}
}
}
}
int Scumm::getActorFromPos(int x, int y) {
uint16 drawbits;
int i;
drawbits = actorDrawBits[x>>3];
if (!(drawbits & 0x3FFF))
return 0;
for (i=1; i<13; i++) {
Actor *a = derefActor(i);
if (drawbits&(1<<i) && !getClass(i, 32) && y >= a->top && y <= a->bottom) {
return i;
}
}
return 0;
}
void Scumm::actorTalk() {
int oldact;
Actor *a;
_msgPtrToAdd = charset._buffer;
_messagePtr = addMessageToStack(_messagePtr);
if (_actorToPrintStrFor==0xFF) {
if (!_keepText)
stopTalk();
vm.vars[VAR_TALK_ACTOR] = 0xFF;
oldact = 0;
} else {
a = derefActorSafe(_actorToPrintStrFor, "actorTalk");
if (a->room!=_currentRoom) {
oldact = 0xFF;
} else {
if (!_keepText)
stopTalk();
vm.vars[VAR_TALK_ACTOR] = a->number;
startAnimActor(a,a->talkFrame1,a->facing);
oldact = vm.vars[VAR_TALK_ACTOR];
}
}
if (oldact>=0x80)
return;
if (vm.vars[VAR_TALK_ACTOR]>0x7F) {
_charsetColor = _stringColor[0];
} else {
a = derefActorSafe(vm.vars[VAR_TALK_ACTOR], "actorTalk(2)");
_charsetColor = a->talkColor;
}
charset._bufPos = 0;
_talkDelay = 0;
_haveMsg = 0xFF;
vm.vars[VAR_HAVE_MSG] = 0xFF;
CHARSET_1();
}
void Scumm::setActorCostume(Actor *a, int c) {
int i;
a->costumeNeedsInit = true;
if (a->visible) {
hideActor(a);
initActorCostumeData(a);
a->costume = c;
showActor(a);
} else {
a->costume = c;
initActorCostumeData(a);
}
for (i=0; i<32; i++)
a->palette[i] = 0xFF;
}
void Scumm::startWalkActor(Actor *a, int x, int y, int dir) {
AdjustBoxResult abr;
abr = adjustXYToBeInBox(a, x, y);
_xPos = abr.x;
_yPos = abr.y;
if (a->room != _currentRoom) {
a->x = _xPos;
a->y = _yPos;
if (dir != 0xFF)
a->facing = dir;
return;
}
if (a->ignoreBoxes!=0) {
abr.x = _xPos;
abr.y = _yPos;
abr.dist = 0;
a->walkbox = 0;
} else {
if (checkXYInBoxBounds(a->walkdata.destbox, _xPos,_yPos)) {
abr.x = _xPos;
abr.y = _yPos;
abr.dist = a->walkdata.destbox;
} else {
abr = adjustXYToBeInBox(a, _xPos, _yPos);
}
if (a->moving && a->walkdata.destdir == dir
&& a->walkdata.destx == abr.x
&& a->walkdata.desty == abr.y)
return;
}
if (a->x==abr.x && a->y==abr.y) {
if (dir!=0xFF && dir!=a->facing) {
a->newDirection = dir;
a->moving = 4;
}
return;
}
a->walkdata.destx = abr.x;
a->walkdata.desty = abr.y;
a->walkdata.destbox = abr.dist; /* a box */
a->walkdata.destdir = dir;
a->moving = (a->moving&2)|1;
a->walkdata.curbox = a->walkbox;
}
byte *Scumm::getActorName(Actor *a) {
byte *ptr = getResourceAddress(9, a->number);
if(ptr==NULL)
return (byte*)" ";
return ptr;
}

839
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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Change Log:
* $Log$
* Revision 1.1 2001/10/09 14:30:14 strigeus
* Initial revision
*
*
*/
#include "stdafx.h"
#include "scumm.h"
byte Scumm::getMaskFromBox(int box) {
Box *ptr = getBoxBaseAddr(box);
return ptr->mask;
}
byte Scumm::getBoxFlags(int box) {
Box *ptr = getBoxBaseAddr(box);
return ptr->flags;
}
int Scumm::getBoxScale(int box) {
Box *ptr = getBoxBaseAddr(box);
return FROM_LE_16(ptr->scale);
}
byte Scumm::getNumBoxes() {
byte *ptr = getResourceAddress(0xE, 2);
return ptr[8];
}
Box *Scumm::getBoxBaseAddr(int box) {
byte *ptr = getResourceAddress(0xE, 2);
checkRange(ptr[8]-1, 0, box, "Illegal box %d");
return (Box*)(ptr + box*SIZEOF_BOX + 10);
}
bool Scumm::checkXYInBoxBounds(int b, int x, int y) {
if (b==0)
return 0;
getBoxCoordinates(b);
if (x < box.upperLeftX && x < box.upperRightX &&
x < box.lowerLeftX && x < box.lowerRightX)
return 0;
if (x > box.upperLeftX && x > box.upperRightX &&
x > box.lowerLeftX && x > box.lowerRightX)
return 0;
if (y < box.upperLeftY && y < box.upperRightY &&
y < box.lowerLeftY && y < box.lowerRightY)
return 0;
if (y > box.upperLeftY && y > box.upperRightY &&
y > box.lowerLeftY && y > box.lowerRightY)
return 0;
if (box.upperLeftX == box.upperRightX &&
box.upperLeftY == box.upperRightY &&
box.lowerLeftX == box.lowerRightX &&
box.lowerLeftY == box.lowerRightY ||
box.upperLeftX == box.lowerRightX &&
box.upperLeftY == box.lowerRightY &&
box.upperRightX== box.lowerLeftX &&
box.upperRightY== box.lowerLeftY) {
Point pt;
pt = closestPtOnLine(box.upperLeftX, box.upperLeftY, box.lowerLeftX, box.lowerLeftY, x, y);
if (distanceFromPt(x, y, pt.x,pt.y) <= 4)
return 1;
}
if (!getSideOfLine(
box.upperLeftX, box.upperLeftY, box.upperRightX, box.upperRightY, x,y,b))
return 0;
if (!getSideOfLine(
box.upperRightX, box.upperRightY, box.lowerLeftX, box.lowerLeftY, x,y,b))
return 0;
if (!getSideOfLine(
box.lowerLeftX, box.lowerLeftY, box.lowerRightX, box.lowerRightY, x,y,b))
return 0;
if (!getSideOfLine(
box.lowerRightX, box.lowerRightY, box.upperLeftX, box.upperLeftY, x,y,b))
return 0;
return 1;
}
void Scumm::getBoxCoordinates(int b) {
Box *bp = getBoxBaseAddr(b);
box.upperLeftX = FROM_LE_16(bp->ulx);
box.upperRightX = FROM_LE_16(bp->urx);
box.lowerLeftX = FROM_LE_16(bp->llx);
box.lowerRightX = FROM_LE_16(bp->lrx);
box.upperLeftY = FROM_LE_16(bp->uly);
box.upperRightY = FROM_LE_16(bp->ury);
box.lowerLeftY = FROM_LE_16(bp->lly);
box.lowerRightY = FROM_LE_16(bp->lry);
}
uint Scumm::distanceFromPt(int x, int y, int ptx, int pty) {
int diffx, diffy;
diffx = ptx - x;
if (ptx < x) diffx = x - ptx;
if (diffx >= 0x100)
return 0xFFFF;
diffy = pty - y;
if (pty < y) diffy = y - pty;
if (diffy >= 0x100)
return 0xFFFF;
diffx *= diffx;
diffy *= diffy;
return diffx + diffy;
}
bool Scumm::getSideOfLine(int x1,int y1, int x2, int y2, int x, int y, int box) {
return (x-x1)*(y2-y1) <= (y-y1)*(x2-x1);
}
Point Scumm::closestPtOnLine(int ulx, int uly, int llx, int lly, int x, int y) {
int lydiff,lxdiff;
int32 dist,a,b,c;
int x2,y2;
Point pt;
if (llx==ulx) {
x2 = ulx;
y2 = y;
} else if (lly==uly) {
x2 = x;
y2 = uly;
} else {
lydiff = lly - uly;
lxdiff = llx - ulx;
if (abs(lxdiff) > abs(lydiff)) {
dist = lxdiff * lxdiff + lydiff * lydiff;
a = ulx * lydiff / lxdiff;
b = x * lxdiff / lydiff;
c = (a + b - uly + y) * lydiff * lxdiff / dist;
x2 = c;
y2 = c * lydiff / lxdiff - a + uly;
} else {
dist = lydiff * lydiff + lxdiff * lxdiff;
a = uly * lxdiff / lydiff;
b = y * lydiff / lxdiff;
c = (a + b - ulx + x) * lydiff * lxdiff / dist;
y2 = c;
x2 = c * lxdiff / lydiff - a + ulx;
}
}
lxdiff = llx - ulx;
lydiff = lly - uly;
if (abs(lydiff) < abs(lxdiff)) {
if (lxdiff > 0) {
if (x2 < ulx) {
type1:;
x2 = ulx;
y2 = uly;
} else if (x2 > llx) {
type2:;
x2 = llx;
y2 = lly;
}
} else {
if (x2 > ulx) goto type1;
if (x2 < llx) goto type2;
}
} else {
if (lydiff > 0) {
if (y2 < uly) goto type1;
if (y2 > lly) goto type2;
} else {
if (y2 > uly) goto type1;
if (y2 < lly) goto type2;
}
}
pt.x = x2;
pt.y = y2;
return pt;
}
bool Scumm::inBoxQuickReject(int b, int x, int y, int threshold) {
int t;
getBoxCoordinates(b);
if (threshold==0)
return 1;
t = x - threshold;
if (t > box.upperLeftX && t > box.upperRightX &&
t > box.lowerLeftX && t > box.lowerRightX)
return 0;
t = x + threshold;
if (t < box.upperLeftX && t < box.upperRightX &&
t < box.lowerLeftX && t < box.lowerRightX)
return 0;
t = y - threshold;
if (t > box.upperLeftY && t > box.upperRightY &&
t > box.lowerLeftY && t > box.lowerRightY)
return 0;
t = y + threshold;
if (t < box.upperLeftY && t < box.upperRightY &&
t < box.lowerLeftY && t < box.lowerRightY)
return 0;
return 1;
}
AdjustBoxResult Scumm::getClosestPtOnBox(int b, int x, int y) {
Point pt;
AdjustBoxResult best;
uint dist;
uint bestdist = (uint)0xFFFF;
getBoxCoordinates(b);
pt = closestPtOnLine(box.upperLeftX,box.upperLeftY,box.upperRightX,box.upperRightY,x,y);
dist = distanceFromPt(x, y, pt.x, pt.y);
if (dist < bestdist) {
bestdist = dist;
best.x = pt.x;
best.y = pt.y;
}
pt = closestPtOnLine(box.upperRightX,box.upperRightY,box.lowerLeftX,box.lowerLeftY,x,y);
dist = distanceFromPt(x, y, pt.x, pt.y);
if (dist < bestdist) {
bestdist = dist;
best.x = pt.x;
best.y = pt.y;
}
pt = closestPtOnLine(box.lowerLeftX,box.lowerLeftY,box.lowerRightX,box.lowerRightY,x,y);
dist = distanceFromPt(x, y, pt.x, pt.y);
if (dist < bestdist) {
bestdist = dist;
best.x = pt.x;
best.y = pt.y;
}
pt = closestPtOnLine(box.lowerRightX,box.lowerRightY,box.upperLeftX,box.upperLeftY,x,y);
dist = distanceFromPt(x, y, pt.x, pt.y);
if (dist < bestdist) {
bestdist = dist;
best.x = pt.x;
best.y = pt.y;
}
best.dist = bestdist;
return best;
}
byte *Scumm::getBoxMatrixBaseAddr() {
byte *ptr = getResourceAddress(0xE, 1) + 8;
if (*ptr==0xFF) ptr++;
return ptr;
}
int Scumm::getPathToDestBox(int from, int to) {
byte *boxm;
int i;
if (from==to)
return to;
boxm = getBoxMatrixBaseAddr();
i=0;
while (i != from) {
while (*boxm != 0xFF)
boxm += 3;
i++;
boxm++;
}
while (boxm[0]!=0xFF) {
if (boxm[0] <= to && boxm[1]>=to)
return boxm[2];
boxm+=3;
}
return 0;
}
int Scumm::findPathTowards(Actor *a, int box1, int box2, int box3) {
int upperLeftX, upperLeftY;
int upperRightX, upperRightY;
int lowerLeftX, lowerLeftY;
int lowerRightX, lowerRightY;
int i,j,m,n,p,q,r;
int tmp_x, tmp_y;
int tmp;
getBoxCoordinates(box1);
upperLeftX = box.upperLeftX;
upperLeftY = box.upperLeftY;
upperRightX = box.upperRightX;
upperRightY = box.upperRightY;
lowerLeftX = box.lowerLeftX;
lowerLeftY = box.lowerLeftY;
lowerRightX = box.lowerRightX;
lowerRightY = box.lowerRightY;
getBoxCoordinates(box2);
i = 0;
do {
if (i >= 4) goto ExitPos;
for (j=0; j<4; j++) {
if (upperRightX==upperLeftX &&
box.upperLeftX==upperLeftX &&
box.upperRightX==upperRightX) {
ExitPos:;
n = m = 0;
if (upperRightY < upperLeftY) {
m = 1;
SWAP(upperRightY, upperLeftY);
}
if (box.upperRightY < box.upperLeftY) {
n = 1;
SWAP(box.upperRightY, box.upperLeftY);
}
if (box.upperRightY >= upperLeftY &&
box.upperLeftY <= upperRightY &&
(box.upperLeftY != upperRightY &&
box.upperRightY!= upperLeftY ||
upperRightY==upperLeftY ||
box.upperRightY==box.upperLeftY)) {
if (box2==box3) {
m = a->walkdata.destx - a->x;
p = a->walkdata.desty - a->y;
tmp = upperLeftX - a->x;
i = a->y;
if (m) {
q = tmp * p;
r = q/m;
if (r==0 && (q<=0 || m<=0) && (q>=0 || m>=0)) {
r = -1;
}
i += r;
}
} else {
i = a->y;
}
q = i;
if (q < box.upperLeftY)
q = box.upperLeftY;
if (q > box.upperRightY)
q = box.upperRightY;
if (q < upperLeftY)
q = upperLeftY;
if (q > upperRightY)
q = upperRightY;
if (q==i && box2==box3)
return 1;
_foundPathX = upperLeftX;
_foundPathY = q;
return 0;
} else {
if (m) {
SWAP(upperRightY, upperLeftY);
}
if (n) {
SWAP(box.upperRightY, box.upperLeftY);
}
}
}
if (upperLeftY==upperRightY &&
box.upperLeftY==upperLeftY &&
box.upperRightY==upperRightY) {
n = m = 0;
if(upperRightX < upperLeftX) {
m = 1;
SWAP(upperRightX, upperLeftX);
}
if (box.upperRightX < box.upperLeftX) {
n = 1;
SWAP(box.upperRightX, box.upperLeftX);
}
if (box.upperRightX >= upperLeftX &&
box.upperLeftX <= upperRightX &&
(box.upperLeftX != upperRightX &&
box.upperRightX!= upperLeftX ||
upperRightX==upperLeftX ||
box.upperRightX==box.upperLeftX)) {
if (box2==box3) {
m = a->walkdata.destx - a->x;
p = a->walkdata.desty - a->y;
i = upperLeftY - a->y;
tmp = a->x;
if (p) {
tmp += i * m / p;
}
} else {
tmp = a->x;
}
q = tmp;
if (q < box.upperLeftX)
q = box.upperLeftX;
if (q > box.upperRightX)
q = box.upperRightX;
if (q < upperLeftX)
q = upperLeftX;
if (q > upperRightX)
q = upperRightX;
if (tmp==q && box2==box3)
return 1;
_foundPathX = q;
_foundPathY = upperLeftY;
return 0;
} else {
if (m != 0) {
SWAP(upperRightX, upperLeftX);
}
if (n != 0) {
SWAP(box.upperRightX, box.upperLeftX);
}
}
}
tmp_x = upperLeftX;
tmp_y = upperLeftY;
upperLeftX = upperRightX;
upperLeftY = upperRightY;
upperRightX = lowerLeftX;
upperRightY = lowerLeftY;
lowerLeftX = lowerRightX;
lowerLeftY = lowerRightY;
lowerRightX = tmp_x;
lowerRightY = tmp_y;
}
tmp_x = box.upperLeftX;
tmp_y = box.upperLeftY;
box.upperLeftX = box.upperRightX;
box.upperLeftY = box.upperRightY;
box.upperRightX = box.lowerLeftX;
box.upperRightY = box.lowerLeftY;
box.lowerLeftX = box.lowerRightX;
box.lowerLeftY = box.lowerRightY;
box.lowerRightX = tmp_x;
box.lowerRightY = tmp_y;
i++;
} while (1);
}
void Scumm::setBoxFlags(int box, int val) {
Box *b = getBoxBaseAddr(box);
b->flags = val;
}
void Scumm::setBoxScale(int box, int scale) {
Box *b = getBoxBaseAddr(box);
b->scale = scale;
}
#define BOX_MATRIX_SIZE 2000
void Scumm::createBoxMatrix() {
byte *matrix_ptr;
int num,i,j;
byte flags;
int table_1[66],table_2[66];
int counter,val;
int code;
PathVertex *vtx;
PathNode *node, *node2;
_maxBoxVertexHeap = 1000;
createResource(0xE, 4, 1000);
createResource(0xE, 3, 4160); //65 items of something of size 64
createResource(0xE, 1, BOX_MATRIX_SIZE+8);
matrix_ptr = getResourceAddress(0xE, 1);
/* endian & alignment safe */
((uint32*)matrix_ptr)[1] = TO_BE_32(BOX_MATRIX_SIZE+8);
((uint32*)matrix_ptr)[0] = MKID('BOXM');
_boxMatrixPtr4 = getResourceAddress(0xE, 4);
_boxMatrixPtr1 = getResourceAddress(0xE, 1) + 8;
_boxMatrixPtr3 = getResourceAddress(0xE, 3);
_boxPathVertexHeapIndex = _boxMatrixItem = 0;
num = getNumBoxes();
for (i=0; i<num; i++) {
for (j=0; j<num; j++) {
if (i==j) {
_boxMatrixPtr3[i*64+j] = 0;
} else if (areBoxesNeighbours(i, j)) {
_boxMatrixPtr3[i*64+j] = 1;
} else {
_boxMatrixPtr3[i*64+j] = 250;
}
}
}
for (j=0; j<num; j++) {
flags = getBoxFlags(j);
if (flags & 0x80) {
addToBoxMatrix(0xFF);
addToBoxMatrix(j);
addToBoxMatrix(j);
addToBoxMatrix(j);
} else {
vtx = addPathVertex();
for (i=0; i<num; i++) {
flags = getBoxFlags(j);
if (!(flags&0x80)) {
node = unkMatrixProc2(vtx, i);
if (i==j)
node2 = node;
}
}
table_1[j] = 0;
table_2[j] = j;
vtx = unkMatrixProc1(vtx, node2);
node = vtx ? vtx->left : NULL;
counter = 250;
while (node) {
val = _boxMatrixPtr3[j*64 + node->index];
table_1[node->index] = val;
if (val<counter) counter=val;
if (table_1[node->index]!=250)
table_2[node->index] = node->index;
else
table_2[node->index] = -1;
node = node->left;
}
while (vtx) {
counter = 250;
node2 = node = vtx->left;
while (node) {
if ( table_1[node->index] < counter ) {
counter = table_1[node->index];
node2 = node;
}
node = node->left;
}
vtx = unkMatrixProc1(vtx, node2);
node = vtx ? vtx->left : NULL;
while (node) {
code = _boxMatrixPtr3[node2->index * 64 + node->index];
code += table_1[node2->index];
if (code < table_1[node->index]) {
table_1[node->index] = code;
table_2[node->index] = table_2[node2->index];
}
node = node->left;
}
}
addToBoxMatrix(0xFF);
for (i=1; i<num;) {
if (table_2[i-1]!=-1) {
addToBoxMatrix(i-1); /* lo */
if (table_2[i-1] != table_2[i]) {
addToBoxMatrix(i-1); /* hi */
addToBoxMatrix(table_2[i-1]); /* dst */
} else {
while (table_2[i-1] == table_2[i]) {
if (++i==num)
break;
}
addToBoxMatrix(i-1); /* hi */
addToBoxMatrix(table_2[i-1]); /* dst */
}
}
if (++i==num && table_2[i-1]!=-1) {
addToBoxMatrix(i-1); /* lo */
addToBoxMatrix(i-1); /* hi */
addToBoxMatrix(table_2[i-1]); /* dest */
}
}
}
}
addToBoxMatrix(0xFF);
nukeResource(0xE, 4);
nukeResource(0xE, 3);
}
PathVertex *Scumm::unkMatrixProc1(PathVertex *vtx, PathNode *node) {
if (node==NULL || vtx==NULL)
return NULL;
if (!node->right) {
vtx->left = node->left;
} else {
node->right->left = node->left;
}
if (!node->left) {
vtx->right = node->right;
} else {
node->left->right = node->right;
}
if (vtx->left)
return vtx;
return NULL;
}
PathNode *Scumm::unkMatrixProc2(PathVertex *vtx, int i) {
PathNode *node;
if (vtx==NULL)
return NULL;
if (!vtx->right) {
node = (PathNode*)addToBoxVertexHeap(sizeof(PathNode));
vtx->left = vtx->right = node;
node->index = i;
node->left = 0;
node->right = 0;
} else {
node = (PathNode*)addToBoxVertexHeap(sizeof(PathNode));
vtx->right->left = node;
node->right = vtx->right;
node->index = i;
node->left = 0;
vtx->right = node;
}
return vtx->right;
}
/* Check if two boxes are neighbours */
bool Scumm::areBoxesNeighbours(int box1, int box2) {
int upperLeftX, upperLeftY;
int upperRightX, upperRightY;
int lowerLeftX, lowerLeftY;
int lowerRightX, lowerRightY;
int j,k,m,n;
int tmp_x, tmp_y;
bool result;
if (getBoxFlags(box1)&0x80 || getBoxFlags(box2)&0x80)
return false;
getBoxCoordinates(box1);
upperLeftX = box.upperLeftX;
upperLeftY = box.upperLeftY;
upperRightX = box.upperRightX;
upperRightY = box.upperRightY;
lowerLeftX = box.lowerLeftX;
lowerLeftY = box.lowerLeftY;
lowerRightX = box.lowerRightX;
lowerRightY = box.lowerRightY;
getBoxCoordinates(box2);
result = false;
j = 4;
do {
k = 4;
do {
if (upperRightX == upperLeftX &&
box.upperLeftX == upperLeftX &&
box.upperRightX == upperRightX) {
/* 5b74 */
n = m = 0;
if (upperRightY < upperLeftY) {
n = 1;
SWAP(upperRightY, upperLeftY);
}
if (box.upperRightY < box.upperLeftY) {
m = 1;
SWAP(box.upperRightY, box.upperLeftY);
}
if (box.upperRightY < upperLeftY ||
box.upperLeftY > upperRightY ||
(box.upperLeftY == upperRightY ||
box.upperRightY==upperLeftY) &&
upperRightY != upperLeftY &&
box.upperLeftY!=box.upperRightY) {
/* if_1_if */
if (n) {
SWAP(upperRightY, upperLeftY);
}
if (m) {
SWAP(box.upperRightY, box.upperLeftY);
}
} else {
/* if_1_else */
if (n) {
SWAP(upperRightY, upperLeftY);
}
if (m) {
SWAP(box.upperRightY, box.upperLeftY);
}
result = true;
}
}
/* do_it_for_y */
if (upperRightY == upperLeftY &&
box.upperLeftY == upperLeftY &&
box.upperRightY == upperRightY) {
n = m = 0;
if (upperRightX < upperLeftX) {
n = 1;
SWAP(upperRightX, upperLeftX);
}
if (box.upperRightX < box.upperLeftX) {
m = 1;
SWAP(box.upperRightX, box.upperLeftX);
}
if (box.upperRightX < upperLeftX ||
box.upperLeftX > upperRightX ||
(box.upperLeftX == upperRightX ||
box.upperRightX==upperLeftX) &&
upperRightX != upperLeftX &&
box.upperLeftX!=box.upperRightX) {
/* if_2_if */
if (n) {
SWAP(upperRightX, upperLeftX);
}
if (m) {
SWAP(box.upperRightX, box.upperLeftX);
}
} else {
/* if_2_else */
if (n) {
SWAP(upperRightX, upperLeftX);
}
if (m) {
SWAP(box.upperRightX, box.upperLeftX);
}
result = true;
}
}
tmp_x = upperLeftX;
tmp_y = upperLeftY;
upperLeftX = upperRightX;
upperLeftY = upperRightY;
upperRightX = lowerLeftX;
upperRightY = lowerLeftY;
lowerLeftX = lowerRightX;
lowerLeftY = lowerRightY;
lowerRightX = tmp_x;
lowerRightY = tmp_y;
} while (--k);
tmp_x = box.upperLeftX;
tmp_y = box.upperLeftY;
box.upperLeftX = box.upperRightX;
box.upperLeftY = box.upperRightY;
box.upperRightX = box.lowerLeftX;
box.upperRightY = box.lowerLeftY;
box.lowerLeftX = box.lowerRightX;
box.lowerLeftY = box.lowerRightY;
box.lowerRightX = tmp_x;
box.lowerRightY = tmp_y;
} while (--j);
return result;
}
void Scumm::addToBoxMatrix(byte b) {
if (++_boxMatrixItem > BOX_MATRIX_SIZE)
error("Box matrix overflow");
*_boxMatrixPtr1++ = b;
}
void *Scumm::addToBoxVertexHeap(int size) {
byte *ptr = _boxMatrixPtr4;
_boxMatrixPtr4 += size;
_boxPathVertexHeapIndex += size;
if (_boxPathVertexHeapIndex >= _maxBoxVertexHeap)
error("Box path vertex heap overflow");
return ptr;
}
PathVertex *Scumm::addPathVertex() {
_boxMatrixPtr4 = getResourceAddress(0xE, 4);
_boxPathVertexHeapIndex = 0;
return (PathVertex*)addToBoxVertexHeap(sizeof(PathVertex));
}

341
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@ -0,0 +1,341 @@
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
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0. This License applies to any program or other work which contains
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END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) 19yy <name of author>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) 19yy name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Library General
Public License instead of this License.

701
costume.cpp Normal file
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@ -0,0 +1,701 @@
/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Change Log:
* $Log$
* Revision 1.1 2001/10/09 14:30:14 strigeus
* Initial revision
*
*
*/
#include "stdafx.h"
#include "scumm.h"
const byte revBitMask[8] = {0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01};
void CostumeRenderer::ignorePakCols(int a) {
int n;
n = _height;
if (a>1) n *= a;
do {
_repcolor = *_srcptr++;
_replen = _repcolor&_maskval;
if (_replen==0) {
_replen = *_srcptr++;
}
do {
if (!--n) {
_repcolor >>= _shrval;
return;
}
} while (--_replen);
} while (1);
}
const byte cost_scaleTable[256] = {
255, 253, 125, 189, 61, 221, 93, 157, 29, 237,
109, 173, 45, 205, 77, 141, 13, 245, 117, 181,
53, 213, 85, 149, 21, 229, 101, 165, 37, 197, 69,
133, 5, 249, 121, 185, 57, 217, 89, 153, 25, 233,
105, 169, 41, 201, 73, 137, 9, 241, 113, 177, 49,
209, 81, 145, 17, 225, 97, 161, 33, 193, 65, 129,
1, 251, 123, 187, 59, 219, 91, 155, 27, 235, 107,
171, 43, 203, 75, 139, 11, 243, 115, 179, 51, 211,
83, 147, 19, 227, 99, 163, 35, 195, 67, 131, 3,
247, 119, 183, 55, 215, 87, 151, 23, 231, 103,
167, 39, 199, 71, 135, 7, 239, 111, 175, 47, 207,
79, 143, 15, 223, 95, 159, 31, 191, 63, 127, 0,
128, 64, 192, 32, 160, 96, 224, 16, 144, 80, 208,
48, 176, 112, 240, 8, 136, 72, 200, 40, 168, 104,
232, 24, 152, 88, 216, 56, 184, 120, 248, 4, 132,
68, 196, 36, 164, 100, 228, 20, 148, 84, 212, 52,
180, 116, 244, 12, 140, 76, 204, 44, 172, 108,
236, 28, 156, 92, 220, 60, 188, 124, 252, 2, 130,
66, 194, 34, 162, 98, 226, 18, 146, 82, 210, 50,
178, 114, 242, 10, 138, 74, 202, 42, 170, 106,
234, 26, 154, 90, 218, 58, 186, 122, 250, 6, 134,
70, 198, 38, 166, 102, 230, 22, 150, 86, 214, 54,
182, 118, 246, 14, 142, 78, 206, 46, 174, 110,
238, 30, 158, 94, 222, 62, 190, 126, 254
};
byte CostumeRenderer::mainRoutine(Actor *a, int slot, int frame) {
int xmove, ymove, i,b,s;
uint scal;
byte scaling;
byte charsetmask, masking;
byte unk19;
checkHeap();
_maskval = 0xF;
_shrval = 4;
if (_numColors == 32) {
_maskval = 7;
_shrval = 3;
}
_width2 = _srcptr[0];
_width = _width2;
_height2 = _srcptr[2];
_height = _height2;
xmove = (int16)READ_LE_UINT16(_srcptr+4) + _xmove;
ymove = (int16)READ_LE_UINT16(_srcptr+6) + _ymove;
_xmove += (int16)READ_LE_UINT16(_srcptr+8);
_ymove -= (int16)READ_LE_UINT16(_srcptr+10);
_srcptr += 12;
_xpos = _actorX;
_ypos = _actorY;
scaling = _scaleX==255 && _scaleY==255 ? 0 : 1;
s = 0;
if (scaling) {
_scaleIndexXStep = -1;
if (xmove < 0) {
xmove = -xmove;
_scaleIndexXStep = 1;
}
if(_mirror) {
unk19 = _scaleIndexX = 128 - xmove;
for (i=0; i<xmove; i++) {
scal = cost_scaleTable[_scaleIndexX++];
if (scal < _scaleX)
_xpos -= _scaleIndexXStep;
}
_right = _left = _xpos;
_scaleIndexX = unk19;
for (i=0; i<_width; i++) {
if (_right < 0) {
s++;
unk19 = _scaleIndexX;
}
scal = cost_scaleTable[_scaleIndexX++];
if (scal < _scaleX)
_right++;
}
} else {
unk19 = _scaleIndexX = xmove + 128;
for (i=0; i<xmove; i++) {
scal = cost_scaleTable[_scaleIndexX--];
if (scal < _scaleX)
_xpos += _scaleIndexXStep;
}
_right = _left = _xpos;
_scaleIndexX = unk19;
for (i=0; i<_width; i++) {
if (_left > 319) {
s++;
unk19 = _scaleIndexX;
}
scal = cost_scaleTable[_scaleIndexX--];
if(scal < _scaleX)
_left--;
}
}
_scaleIndexX = unk19;
if (s)
s--;
_scaleIndexYStep = -1;
if (ymove < 0) {
ymove = -ymove;
_scaleIndexYStep = 1;
}
_scaleIndexY = 128 - ymove;
for (i=0; i<ymove; i++) {
scal = cost_scaleTable[_scaleIndexY++];
if (scal < _scaleY)
_ypos -= _scaleIndexYStep;
}
_top = _bottom = _ypos;
_scaleIndexY = 128 - ymove;
for (i=0; i<_height; i++) {
scal = cost_scaleTable[_scaleIndexY++];
if (scal < _scaleY)
_bottom++;
}
_scaleIndexY = _scaleIndexYTop = 128 - ymove;
} else {
if(_mirror==0)
xmove = -xmove;
_xpos += xmove;
_ypos += ymove;
if (_mirror) {
_left = _xpos;
_right = _xpos + _width;
} else {
_left = _xpos - _width;
_right = _xpos;
}
_top = _ypos;
_bottom = _top + _height;
}
_scaleIndexXStep = -1;
if (_mirror)
_scaleIndexXStep = 1;
_ypostop = _ypos;
_vscreenheight = _vm->virtscr[0].height;
_vm->updateDirtyRect(0, _left, _right+1,_top,_bottom,1<<a->number);
if ((int)_top >= (int)_vscreenheight || _bottom <= 0) {
checkHeap();
return 0;
}
_ypitch = _height * 320;
_docontinue = 0;
b = 1;
if (_left > 319 || _right <= 0)
return 0;
if (_mirror) {
_ypitch--;
if (scaling==0) {
s = -_xpos;
}
if (s > 0) {
_width2 -= s;
ignorePakCols(s);
_xpos = 0;
_docontinue = 1;
} else {
s = _right - 320;
if (s<=0) {
b = 2;
} else {
_width2 -= s;
}
}
} else {
_ypitch++;
if(scaling==0)
s = _right - 320;
if (s > 0) {
_width2 -= s;
ignorePakCols(s);
_xpos = 319;
_docontinue = 1;
} else {
s = -1 - _left;
if (s <= 0)
b = 2;
else
_width2 -= s;
}
}
if (_top > _vscreenheight || _top < 0)
_top = 0;
if (_bottom > _vscreenheight)
_bottom = _vscreenheight;
if (a->top > _top)
a->top = _top;
if (a->bottom < _bottom)
a->bottom = _bottom;
if (_height2 + _top >= 256) {
checkHeap();
return 2;
}
_where_to_draw_ptr = _vm->getResourceAddress(0xA, 5) + _vm->virtscr[0].xstart + _ypos*320 + _xpos;
_bg_ptr = _vm->getResourceAddress(0xA, 1) + _vm->virtscr[0].xstart + _ypos*320 + _xpos;
charsetmask = _vm->hasCharsetMask(_left, _top + _vm->virtscr[0].topline, _right, _vm->virtscr[0].topline + _bottom);
masking = 0;
if (_zbuf) {
masking = _vm->isMaskActiveAt(_left, _top, _right, _bottom,
_vm->getResourceAddress(0xA, 9) + _vm->_imgBufOffs[_zbuf] + _vm->_screenStartStrip
);
}
if (_zbuf || charsetmask) {
_mask_ptr = _vm->getResourceAddress(0xA, 9) + _ypos*40 + _vm->_screenStartStrip;
_imgbufoffs = _vm->_imgBufOffs[_zbuf];
if (!charsetmask && _zbuf!=0)
_mask_ptr += _imgbufoffs;
_mask_ptr_dest = _mask_ptr + _xpos / 8;
}
checkHeap();
switch ((scaling<<2)|(masking<<1)|charsetmask) {
case 0:
proc6();
break;
case 1: case 2:
proc5();
break;
case 3:
proc4();
break;
case 4:
proc1();
break;
case 5:case 6:
proc2();
break;
case 7:
proc3();
break;
}
checkHeap();
return b;
}
void CostumeRenderer::proc6() {
byte len;
byte *src, *dst;
byte width,height,pcolor;
int color;
uint y;
uint scrheight;
y = _ypos;
len = _replen;
src = _srcptr;
dst = _bg_ptr;
color = _repcolor;
scrheight = _vscreenheight;
width = _width2;
height = _height2;
if (_docontinue) goto StartPos;
do {
len = *src++;
color = len>>_shrval;
len &= _maskval;
if (!len) len = *src++;
do {
if (color && y < scrheight) {
pcolor = _palette[color];
if (pcolor==13) {
pcolor = _transEffect[*dst];
}
*dst = pcolor;
}
dst += 320;
y++;
if (!--height) {
if (!--width)
return;
height = _height;
dst -= _ypitch;
y = _ypostop;
}
StartPos:;
} while (--len);
} while (1);
}
void CostumeRenderer::proc5() {
byte *mask,*src,*dst;
byte maskbit,len,height,pcolor;
uint y,scrheight;
int color;
mask = _mask_ptr = _mask_ptr_dest;
maskbit = revBitMask[_xpos&7];
y = _ypos;
src = _srcptr;
dst = _bg_ptr;
len = _replen;
color = _repcolor;
scrheight = _vscreenheight;
height = _height2;
if (_docontinue) goto StartPos;
do {
len = *src++;
color = len>>_shrval;
len &= _maskval;
if (!len) len = *src++;
do {
if (color && y<scrheight && !(*mask&maskbit)) {
pcolor = _palette[color];
if (pcolor==13)
pcolor = _transEffect[*dst];
*dst = pcolor;
}
dst += 320;
y++;
mask += 40;
if (!--height) {
if(!--_width2)
return;
height = _height;
dst -= _ypitch;
y = _ypostop;
if(_scaleIndexXStep!=1) {
maskbit<<=1;
if (!maskbit) {
maskbit=1;
_mask_ptr--;
}
} else {
maskbit>>=1;
if (!maskbit) {
maskbit=0x80;
_mask_ptr++;
}
}
mask = _mask_ptr;
}
StartPos:;
} while (--len);
} while(1);
}
void CostumeRenderer::proc4() {
byte *mask,*src,*dst;
byte maskbit,len,height,pcolor;
uint y,scrheight;
int color;
mask = _mask_ptr = _mask_ptr_dest;
maskbit = revBitMask[_xpos&7];
y = _ypos;
src = _srcptr;
dst = _bg_ptr;
len = _replen;
color = _repcolor;
scrheight = _vscreenheight;
height = _height2;
if (_docontinue) goto StartPos;
do {
len = *src++;
color = len>>_shrval;
len &= _maskval;
if (!len) len = *src++;
do {
if (color && y<scrheight && !((*mask|mask[_imgbufoffs])&maskbit)) {
pcolor = _palette[color];
if (pcolor==13)
pcolor = _transEffect[*dst];
*dst = pcolor;
}
dst += 320;
y++;
mask += 40;
if (!--height) {
if(!--_width2)
return;
height = _height;
dst -= _ypitch;
y = _ypostop;
if(_scaleIndexXStep!=1) {
maskbit<<=1;
if (!maskbit) {
maskbit=1;
_mask_ptr--;
}
} else {
maskbit>>=1;
if (!maskbit) {
maskbit=0x80;
_mask_ptr++;
}
}
mask = _mask_ptr;
}
StartPos:;
} while (--len);
} while(1);
}
void CostumeRenderer::proc3() {
warning("COST_Proc3: not implemented");
}
void CostumeRenderer::proc2() {
byte *mask,*src,*dst;
byte maskbit,len,height,pcolor,width;
int color,t;
uint y;
mask = _mask_ptr_dest;
dst = _bg_ptr;
height = _height2;
width = _width2;
len = _replen;
color = _repcolor;
src = _srcptr;
maskbit = revBitMask[_xpos&7];
y = _ypos;
if (_docontinue) goto StartPos;
do {
len = *src++;
color = len>>_shrval;
len &= _maskval;
if (!len) len = *src++;
do {
if (cost_scaleTable[_scaleIndexY++] < _scaleY) {
if (color && y < _vscreenheight && !(*mask&maskbit)) {
pcolor = _palette[color];
if (pcolor==13)
pcolor = _transEffect[*dst];
*dst = pcolor;
}
dst += 320;
mask += 40;
y++;
}
if (!--height) {
if(!--width)
return;
height = _height;
y = _ypostop;
_scaleIndexY = _scaleIndexYTop;
t = _scaleIndexX;
_scaleIndexX = t + _scaleIndexXStep;
if (cost_scaleTable[t] < _scaleX) {
_xpos += _scaleIndexXStep;
if (_xpos >= 320)
return;
maskbit = revBitMask[_xpos&7];
_bg_ptr += _scaleIndexXStep;
}
dst = _bg_ptr;
mask = _mask_ptr + (_xpos>>3);
}
StartPos:;
} while (--len);
} while(1);
}
void CostumeRenderer::proc1() {
byte *mask,*src,*dst;
byte maskbit,len,height,pcolor,width;
uint y;
int color;
int t;
#if 0
debug(1, "proc1(): (%d %d),(%d %d %d),(%d %d %d),(%d %d,%d %d,%d %d),(%d %d)",
_xpos, _ypos,
_width2, _height2, _height,
_replen,_repcolor,_docontinue,
_scaleX, _scaleY, _scaleIndexX, _scaleIndexY,
_scaleIndexXStep, _scaleIndexYStep,
_scaleIndexYTop,_vscreenheight
);
#endif
mask = _mask_ptr = _mask_ptr_dest;
maskbit = revBitMask[_xpos&7];
y = _ypos;
dst = _bg_ptr;
height = _height2;
width = _width2;
len = _replen;
color = _repcolor;
src = _srcptr;
if (_docontinue) goto StartPos;
do {
len = *src++;
color = len>>_shrval;
len &= _maskval;
if (!len) len = *src++;
do {
if (cost_scaleTable[_scaleIndexY++] < _scaleY) {
if (color && y < _vscreenheight) {
pcolor = _palette[color];
if (pcolor==13)
pcolor = _transEffect[*dst];
*dst = pcolor;
}
dst += 320;
y++;
}
if (!--height) {
if(!--width)
return;
height = _height;
y = _ypostop;
_scaleIndexY = _scaleIndexYTop;
t = _scaleIndexX;
_scaleIndexX = t + _scaleIndexXStep;
if (cost_scaleTable[t] < _scaleX) {
_xpos += _scaleIndexXStep;
if (_xpos >= 320)
return;
_bg_ptr += _scaleIndexXStep;
}
dst = _bg_ptr;
}
StartPos:;
} while (--len);
} while(1);
}
void CostumeRenderer::loadCostume(int id) {
_ptr = _vm->getResourceAddress(3, id) + 2;
switch(_ptr[7]&0x7F) {
case 0x58:
_numColors = 16;
break;
case 0x59:
_numColors = 32;
break;
default:
error("Costume %d is invalid", id);
}
_dataptr = _ptr + READ_LE_UINT16(_ptr + _numColors + 8);
}
byte CostumeRenderer::drawOneSlot(Actor *a, int slot) {
int i;
int code;
CostumeData *cd = &a->cost;
if (cd->a[slot]==0xFFFF || cd->hdr & (1<<slot))
return 0;
i = cd->a[slot]&0x7FFF;
_frameptr = _ptr + READ_LE_UINT16(_ptr + _numColors + slot*2 + 10);
code = _dataptr[i]&0x7F;
_srcptr = _ptr + READ_LE_UINT16(_frameptr + code*2);
if (code != 0x7B) {
return mainRoutine(a, slot, code);
}
return 0;
}
byte CostumeRenderer::drawCostume(Actor *a) {
int i;
byte r = 0;
_xmove = _ymove = 0;
for (i=0; i<16; i++)
r|=drawOneSlot(a, i);
return r;
}
byte CostumeRenderer::animateOneSlot(CostumeData *cd, int slot) {
int highflag;
int i,end,code;
if (cd->a[slot]==0xFFFF)
return 0;
highflag = cd->a[slot]&0x8000;
i = cd->a[slot]&0x7FFF;
end = cd->c[slot];
code=_dataptr[i]&0x7F;
do {
if (!highflag) {
if (i++ >= end)
i = cd->b[slot];
} else {
if (i != end)
i++;
}
if (_dataptr[i]==0x7C) {
cd->animCounter1++;
if(cd->b[slot] != end)
continue;
}
if (_dataptr[i]==0x78) {
cd->animCounter2++;
if(cd->b[slot] != end)
continue;
}
cd->a[slot] = i|highflag;
return (_dataptr[i]&0x7F) != code;
} while(1);
}
byte CostumeRenderer::animate(CostumeData *cd) {
int i;
byte r = 0;
for (i=0; i<16; i++) {
if(cd->a[i]!=0xFFFF)
r+=animateOneSlot(cd, i);
}
return r;
}

1645
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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Change Log:
* $Log$
* Revision 1.1 2001/10/09 14:30:14 strigeus
* Initial revision
*
*
*/
#include "stdafx.h"
#include "scumm.h"
bool Scumm::getClass(int obj, int cls) {
checkRange(_maxNrObjects-1, 0, obj, "Object %d out of range in getClass");
cls &= 0x7F;
checkRange(32,1,cls,"Class %d out of range in getClass");
return (_classData[obj] & (1<<(cls-1))) != 0;
}
void Scumm::putClass(int obj, int cls, bool set) {
checkRange(_maxNrObjects-1, 0, obj, "Object %d out of range in getClass");
cls &= 0x7F;
checkRange(32,1,cls,"Class %d out of range in getClass");
if (set)
_classData[obj] |= (1<<(cls-1));
else
_classData[obj] &= ~(1<<(cls-1));
}
int Scumm::getOwner(int obj) {
checkRange(_maxNrObjects-1, 0, obj, "Object %d out of range in getOwner");
return _objectFlagTable[obj]&0xF;
}
void Scumm::putOwner(int act, int owner) {
checkRange(_maxNrObjects-1, 0, act, "Object %d out of range in putOwner");
checkRange(15, 0, owner, "Owner %d out of range in putOwner");
_objectFlagTable[act] = (_objectFlagTable[act]&0xF0) | owner;
}
int Scumm::getState(int act) {
checkRange(_maxNrObjects-1, 0, act, "Object %d out of range in getState");
return _objectFlagTable[act]>>4;
}
void Scumm::putState(int act, int state) {
checkRange(_maxNrObjects-1, 0, act, "Object %d out of range in putState");
checkRange(15, 0, state, "State %d out of range in putState");
_objectFlagTable[act] = (_objectFlagTable[act]&0x0F) | (state<<4);
}
int Scumm::getObjectIndex(int object) {
int i;
if ((_objectFlagTable[object]&0xF)!=0xF) {
for (i=0; i<_maxInventoryItems; i++)
if (_inventory[i] == object)
return i;
return -1;
} else {
for (i=_numObjectsInRoom; i>0; i--) {
if (objs[i].obj_nr==object)
return i;
}
return -1;
}
}
int Scumm::whereIsObject(int object) {
int i;
if ((_objectFlagTable[object]&0xF)!=0xF) {
for (i=0; i<_maxInventoryItems; i++)
if (_inventory[i] == object)
return 0;
return -1;
}
for (i=_numObjectsInRoom; i>0; i--)
if (objs[i].obj_nr == object) {
if (objs[i].fl_object_index)
return 4;
return 1;
}
return -1;
}
int Scumm::getObjectOrActorXY(int object) {
if (object <= vm.vars[VAR_NUM_ACTOR]) {
return getActorXYPos(derefActorSafe(object, "getObjectOrActorXY"));
}
switch(whereIsObject(object)) {
case -1:
return -1;
case 0:
return getActorXYPos(derefActorSafe(_objectFlagTable[object]&0xF,"getObjectOrActorXY(2)"));
}
getObjectXYPos(object);
return 0;
}
void Scumm::getObjectXYPos(int object) {
ObjectData *od = &objs[getObjectIndex(object)];
AdjustBoxResult abr;
abr = adjustXYToBeInBox(0, od->cdhd_10, od->cdhd_12);
_xPos = abr.x;
_yPos = abr.y;
_dir = od->actordir&3;
}
int Scumm::getObjActToObjActDist(int a, int b) {
int x,y;
Actor *acta = NULL;
Actor *actb = NULL;
if (a<=vm.vars[VAR_NUM_ACTOR])
acta = derefActorSafe(a, "getObjActToObjActDist");
if (b<=vm.vars[VAR_NUM_ACTOR])
actb = derefActorSafe(b, "getObjActToObjActDist(2)");
if (acta && actb && acta->room==actb->room && acta->room &&
acta->room != _currentRoom)
return 0xFF;
if (getObjectOrActorXY(a)==-1)
return 0xFF;
x = _xPos;
y = _yPos;
if (getObjectOrActorXY(b)==-1)
return 0xFF;
/* XXX: bug here? should be <= */
if (acta) {
AdjustBoxResult r = adjustXYToBeInBox(acta, _xPos, _yPos);
_xPos = r.x;
_yPos = r.y;
}
y = abs(y-_yPos);
x = abs(x-_xPos);
if (y>x) x=y;
return x;
}
int Scumm::findObject(int x, int y) {
int i,a,b;
for (i=1; i<=_numObjectsInRoom; i++) {
if (!objs[i].obj_nr || getClass(objs[i].obj_nr, 32))
continue;
b = i;
do {
a = objs[b].cdhd_0e;
b = objs[b].cdhd_0f;
if (b==0) {
if (objs[i].x_pos <= (x>>3) &&
objs[i].numstrips + objs[i].x_pos > (x>>3) &&
objs[i].y_pos <= (y>>3) &&
objs[i].height + objs[i].y_pos > (y>>3))
return objs[i].obj_nr;
break;
}
} while ( (objs[b].ownerstate&0xF0) == a);
}
return 0;
}
void Scumm::drawRoomObjects(int arg) {
int num = _numObjectsInRoom;
ObjectData *od;
int a;
if (num==0)
return;
do {
od = &objs[num];
if (!od->obj_nr || !(od->ownerstate&0xF0))
continue;
do {
a = od->cdhd_0e;
if (!od->cdhd_0f) {
drawObject(num, arg);
break;
}
od = &objs[od->cdhd_0f];
} while ((od->ownerstate & 0xF0)==a);
} while (--num);
}
const uint32 state_tags[] = {
MKID('IM00'),
MKID('IM01'),
MKID('IM02'),
MKID('IM03'),
MKID('IM04'),
MKID('IM05'),
MKID('IM06'),
MKID('IM07'),
MKID('IM08'),
MKID('IM09'),
MKID('IM0A'),
MKID('IM0B'),
MKID('IM0C'),
MKID('IM0D'),
MKID('IM0E'),
MKID('IM0F')
};
void Scumm::drawObject(int obj, int arg) {
ObjectData *od;
int xpos, ypos, height, width;
byte *ptr;
int x,a,b;
if (_BgNeedsRedraw)
arg = 0;
gdi.virtScreen = 0;
od = &objs[obj];
xpos = od->x_pos;
ypos = od->y_pos;
width = od->numstrips;
height = od->height;
if (width==0 || xpos > _screenEndStrip || xpos + width < _screenStartStrip)
return;
if (od->fl_object_index) {
ptr = getResourceAddress(0xD, od->fl_object_index);
ptr = findResource(MKID('OBIM'), ptr);
} else {
ptr = getResourceAddress(1, _roomResource);
ptr = ptr + od->offs_obim_to_room;
}
ptr = findResource(state_tags[getState(od->obj_nr)], ptr);
if (!ptr)
return;
x = 0xFFFF;
for (a=b=0; a<width; a++) {
_drawBmpX = xpos + a;
if (arg==1 && _screenStartStrip!=_drawBmpX)
continue;
if (arg==2 && _screenEndStrip!=_drawBmpX)
continue;
if (_screenStartStrip > _drawBmpX || _drawBmpX > _screenEndStrip)
continue;
actorDrawBits[_drawBmpX] |= 0x8000;
if (_drawBmpX < x)
x = _drawBmpX;
b++;
}
if (b==0)
return;
_drawBmpY = ypos << 3;
gdi.numLinesToProcess = height << 3;
_drawBmpX = x;
drawBmp(ptr, x - xpos, b, 1, "Object", od->obj_nr);
}
void Scumm::loadRoomObjects() {
int i,j;
ObjectData *od;
byte *ptr;
uint16 obim_id;
byte *room,*tmp_room;
ImageHeader *imhd;
RoomHeader *roomhdr;
CodeHeader *cdhd;
checkHeap();
room = getResourceAddress(1, _roomResource);
roomhdr = (RoomHeader*)findResource(MKID('RMHD'), room);
_numObjectsInRoom = READ_LE_UINT16(&roomhdr->numObjects);
if (_numObjectsInRoom == 0)
return;
if (_numObjectsInRoom > 200)
error("More than %d objects in room %d", 200, _roomResource);
tmp_room = room;
od = &objs[1];
for (i=1; i<=_numObjectsInRoom; i++,od++) {
ptr = findResource(MKID('OBCD'), tmp_room);
if (ptr==NULL)
error("Room %d missing object code block(s)", _roomResource);
od->offs_obcd_to_room = ptr - room;
cdhd = (CodeHeader*)findResource2(MKID('CDHD'), ptr);
od->obj_nr = READ_LE_UINT16(&cdhd->obj_id);
#ifdef DUMP_SCRIPTS
do {
char buf[32];
sprintf(buf,"roomobj-%d-",_roomResource);
dumpResource(buf, od->obj_nr, ptr);
} while (0);
#endif
tmp_room = NULL;
}
tmp_room = room;
for (i=1; i<=_numObjectsInRoom; i++) {
ptr = findResource(MKID('OBIM'), tmp_room);
if (ptr==NULL)
error("Room %d missing image blocks(s)", _roomResource);
imhd = (ImageHeader*)findResource2(MKID('IMHD'), ptr);
obim_id = READ_LE_UINT16(&imhd->obj_id);
for(j=1; j<=_numObjectsInRoom; j++) {
if (objs[j].obj_nr==obim_id)
objs[j].offs_obim_to_room = ptr - room;
}
tmp_room = NULL;
}
od = &objs[1];
for (i=1; i<=_numObjectsInRoom; i++,od++) {
ptr = room + objs[i].offs_obcd_to_room;
cdhd = (CodeHeader*)findResource2(MKID('CDHD'), ptr);
objs[i].obj_nr = READ_LE_UINT16(&cdhd->obj_id);
objs[i].numstrips = cdhd->w;
objs[i].height = cdhd->h;
objs[i].x_pos = cdhd->x;
objs[i].y_pos = cdhd->y;
if (!(cdhd->flags&0x80)) {
objs[i].cdhd_0e = 0x10;
} else {
objs[i].cdhd_0e = cdhd->flags;
}
objs[i].cdhd_0f = cdhd->unk1;
objs[i].cdhd_10 = READ_LE_UINT16(&cdhd->unk2);
objs[i].cdhd_12 = READ_LE_UINT16(&cdhd->unk3);
objs[i].actordir = cdhd->unk4;
objs[i].fl_object_index = 0;
}
checkHeap();
}
void Scumm::fixObjectFlags() {
int i;
ObjectData *od = &objs[1];
for (i=1; i<=_numObjectsInRoom; i++,od++) {
od->ownerstate = _objectFlagTable[od->obj_nr];
}
}
void Scumm::processDrawQue() {
int i, j;
for (i=0; i<_drawObjectQueNr; i++) {
j = _drawObjectQue[i];
if (j)
drawObject(j,0);
}
_drawObjectQueNr = 0;
}
void Scumm::clearOwnerOf(int obj) {
int i,j;
uint16 *a;
byte *ptr;
stopObjectScript(obj);
if (getOwner(obj)==0xF) {
i = 0;
do {
if (objs[i].obj_nr==obj) {
if (!objs[i].fl_object_index)
return;
nukeResource(0xD, objs[i].fl_object_index);
objs[i].obj_nr = 0;
objs[i].fl_object_index = 0;
}
} while(++i <= _numObjectsInRoom);
return;
}
for (i=1; i<_maxInventoryItems; i++) {
if (_inventory[i] == obj) {
j = whereIsObject(obj);
if (j==0) {
nukeResource(5, i);
_inventory[i] = 0;
}
a = &_inventory[2];
for (i=1; i < _maxInventoryItems-1; i++) {
if (!a[-1] && a[0]) {
a[-1] = a[0];
ptr = getResourceAddress(5, i+1);
_baseInventoryItems[i] = _baseInventoryItems[i+1];
/* TODO: some wacky write is done here */
error("clearOwnerOf: not fully implemented");
}
}
return;
}
}
}
void Scumm::removeObjectFromRoom(int obj) {
int i,cnt;
uint16 *ptr;
for(i=1; i<=_numObjectsInRoom; i++) {
if (objs[i].obj_nr==obj) {
if (objs[i].numstrips != 0) {
ptr = &actorDrawBits[objs[i].x_pos];
cnt = objs[i].numstrips;
do {
*ptr++ |= 0x8000;
} while (--cnt);
}
_BgNeedsRedraw = 1;
return;
}
}
}
void Scumm::addObjectToDrawQue(int object) {
_drawObjectQue[_drawObjectQueNr++] = object;
if (_drawObjectQueNr > 200)
error("Draw Object Que overflow");
}
void Scumm::clearDrawObjectQueue() {
_drawObjectQueNr = 0;
}
byte *Scumm::getObjOrActorName(int obj) {
byte *objptr;
if (obj <= vm.vars[VAR_NUM_ACTOR])
return getActorName(derefActorSafe(obj, "getObjOrActorName"));
objptr = getObjectAddress(obj);
if (objptr==NULL)
return (byte*)" ";
return findResource(MKID('OBNA'), objptr) + 8;
}
uint32 Scumm::getOBCDOffs(int object) {
int i;
if ((_objectFlagTable[object]&0xF)!=0xF)
return 0;
for (i=_numObjectsInRoom; i>0; i--) {
if (objs[i].obj_nr == object) {
if (objs[i].fl_object_index!=0)
return 8;
return objs[i].offs_obcd_to_room;
}
}
return 0;
}
byte *Scumm::getObjectAddress(int obj) {
int i;
if ((_objectFlagTable[obj]&0xF)!=0xF) {
for(i=0; i<_maxInventoryItems; i++) {
if (_inventory[i] == obj)
return getResourceAddress(5, i);
}
} else {
for(i=_numObjectsInRoom; i>0; --i) {
if (objs[i].obj_nr==obj) {
if (objs[i].fl_object_index)
return getResourceAddress(0xD, objs[i].fl_object_index)+8;
return getResourceAddress(1, _roomResource) + objs[i].offs_obcd_to_room;
}
}
}
return 0;
}
void Scumm::addObjectToInventory(int obj, int room) {
int i, slot;
byte *ptr,*obcdptr;
uint32 size,cdoffs;
int numobj;
byte *tmp_roomptr,*roomptr;
CodeHeader *cdhd;
RoomHeader *roomhdr;
debug(1,"Adding object %d from room %d into inventory", obj, room);
checkHeap();
if (whereIsObject(obj)==4) {
i = getObjectIndex(obj);
ptr = getResourceAddress(0xD, objs[i].fl_object_index) + 64;
size = READ_BE_UINT32_UNALIGNED(ptr+4);
slot = getInventorySlot();
_inventory[slot] = obj;
createResource(5, slot, size);
ptr = getResourceAddress(0xD, objs[i].fl_object_index) + 64;
memcpy(getResourceAddress(5, slot), ptr, size);
checkHeap();
return;
}
ensureResourceLoaded(1, room);
roomptr = getResourceAddress(1, room);
roomhdr = (RoomHeader*)findResource(MKID('RMHD'), roomptr);
numobj = READ_LE_UINT16(&roomhdr->numObjects);
if (numobj==0)
error("addObjectToInventory: No object found in room %d", room);
if (numobj > 200)
error("addObjectToInventory: More (%d) than %d objects in room %d", numobj, 200, room);
tmp_roomptr = roomptr;
for (i=1; i<=numobj; i++) {
obcdptr = findResource(MKID('OBCD'), tmp_roomptr);
if(obcdptr==NULL)
error("addObjectToInventory: Not enough code blocks in room %d", room);
cdhd = (CodeHeader*)findResource2(MKID('CDHD'), obcdptr);
if ( READ_LE_UINT16(&cdhd->obj_id) == obj) {
cdoffs = obcdptr - roomptr;
size = READ_BE_UINT32_UNALIGNED(obcdptr+4);
slot = getInventorySlot();
_inventory[slot] = obj;
createResource(5, slot, size);
obcdptr = getResourceAddress(1, room) + cdoffs;
memcpy(getResourceAddress(5,slot),obcdptr,size);
checkHeap();
return;
}
tmp_roomptr = NULL;
}
error("addObjectToInventory: Object %d not found in room %d", obj, room);
}
int Scumm::getInventorySlot() {
int i;
for (i=1; i<=_maxInventoryItems; i++) {
if (_inventory[i]==0)
return i;
}
error("Inventory full, %d max items", _maxInventoryItems);
}

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2001-10-08
This is the first pre-alpha release of ScummVM. It is an implementation of the SCUMM engine used in various Lucas Arts games such as Monkey Island and Day of the Tentacle.
The engine is far from complete, and thus only Monkey Island 2 is supported at the moment.
Please be aware that the engine contains bugs and non-implemented-features that make it impossible to finish the game. Other stuff that's missing is sound and savegames.
Compiling:
--------
You need SDL-1.2.2 (maybe older versions will work), and a supported compiler. At the moment only GCC and Microsoft Visual C++ are supported.
GCC:
----
* Edit the makefile and replace /usr/local/include/SDL/ with the path to your SDL include files.
If your processor architecture is big endian, replace -DSCUMM_LITTLE_ENDIAN by -DSCUMM_BIG_ENDIAN -DSCUMM_NEED_ALIGNMENT
* Now type make (or gmake if that's what GNU make is called on your system) and hopefully ScummVM will compile for you.
Please note that big endian support is preliminary and contains bugs.
Microsoft Visual C++:
---------------------
* Open the workspace, scummwm.dsw
* If you want to compile the GDI version, remove sdl.cpp from the project and add windows.cpp.
for the SDL version, remove windows.cpp from the project and add sdl.cpp.
* Enter the path to the SDL include files in Tools|Options|Directories
* Now it should compile successfully.
Running:
--------
Before you run the engine, you need to put the game's datafiles in the same directory as the scummvm executable. The filenames must be in lowercase (monkey2.000 and monkey2.001).
Good Luck,
Ludvig Strigeus

647
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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Change Log:
* $Log$
* Revision 1.1 2001/10/09 14:30:14 strigeus
* Initial revision
*
*
*/
#include "stdafx.h"
#include "scumm.h"
/* Open a room */
void Scumm::openRoom(int room) {
uint room_offs;
char buf[256];
debug(9, "openRoom(%d)",room);
/* Don't load the same room again */
if (_lastLoadedRoom == room)
return;
_lastLoadedRoom = room;
/* Room -1 means close file */
if (room==-1) {
_encbyte = 0;
deleteRoomOffsets();
fileClose(_fileHandle);
_fileHandle = NULL;
return;
}
/* Either xxx.lfl or monkey.xxx file name */
while (!_resFilePrefix) {
#if REAL_CODE
room_offs = _roomFileOffsets[room];
#else
room_offs = room ? _roomFileOffsets[room] : 0;
#endif
if (room_offs == 0xFFFFFFFF)
break;
if (room_offs != 0 && room != 0) {
_fileOffset = _roomFileOffsets[room];
return;
}
if (room==0) {
sprintf(buf, "%s.000", _exe_name);
} else {
sprintf(buf, "%s.%.3d", _exe_name, res.roomno[1][room]);
}
_encbyte = 0x69;
if (openResourceFile(buf)) {
if (room==0)
return;
readRoomsOffsets();
_fileOffset = _roomFileOffsets[room];
if (_fileOffset != 8)
return;
error("Room %d not in %s", room, buf);
return;
}
askForDisk();
}
do {
sprintf(buf, "%.3d.lfl", room);
_encbyte = 0;
if (openResourceFile(buf))
break;
askForDisk();
} while(1);
deleteRoomOffsets();
_fileOffset = 0; /* start of file */
}
/* Delete the currently loaded room offsets */
void Scumm::deleteRoomOffsets() {
if (!_dynamicRoomOffsets)
return;
for (int i=0; i<_maxRooms; i++) {
if (_roomFileOffsets[i]!=0xFFFFFFFF)
_roomFileOffsets[i] = 0;
}
}
/* Read room offsets */
void Scumm::readRoomsOffsets() {
int num,room;
debug(9, "readRoomOffsets()");
deleteRoomOffsets();
if (!_dynamicRoomOffsets)
return;
fileSeek(_fileHandle, 16, SEEK_SET);
num = fileReadByte();
while (num) {
num--;
room = fileReadByte();
if (_roomFileOffsets[room]!=0xFFFFFFFF) {
_roomFileOffsets[room] = fileReadDwordLE();
} else {
fileReadDwordLE();
}
}
}
bool Scumm::openResourceFile(const char *filename) {
char buf[256];
debug(9, "openResourceFile(%s)",filename);
if (_resFilePath) {
sprintf(buf, "%s.%d\\%s", _resFilePath, _resFilePathId, filename);
} else if (_resFilePrefix) {
sprintf(buf, "%s%s", _resFilePrefix, filename);
} else {
strcpy(buf, filename);
}
if (_fileHandle != NULL) {
fileClose(_fileHandle);
_fileHandle = NULL;
}
_fileHandle = fileOpen(buf, 1);
return _fileHandle != NULL;
}
void Scumm::askForDisk() {
/* TODO: Not yet implemented */
error("askForDisk: not yet implemented");
}
void Scumm::readIndexFile(int mode) {
uint32 blocktype,itemsize;
int numblock = 0;
#if defined(SCUMM_BIG_ENDIAN)
int i;
#endif
debug(9, "readIndexFile(%d)",mode);
openRoom(-1);
openRoom(0);
while (1) {
blocktype = fileReadDword();
if (fileReadFailed(_fileHandle))
break;
itemsize = fileReadDwordBE();
numblock++;
switch(blocktype) {
case MKID('DCHR'):
readResTypeList(6,MKID('CHAR'),"charset");
break;
case MKID('DOBJ'):
_maxNrObjects = fileReadWordLE();
_objectFlagTable = (byte*)alloc(_maxNrObjects);
if (mode==1) {
fileSeek(_fileHandle, itemsize - 10, 1);
break;
}
_classData = (uint32*)alloc(_maxNrObjects * sizeof(uint32));
fileRead(_fileHandle, _objectFlagTable, _maxNrObjects);
fileRead(_fileHandle, _classData, _maxNrObjects * sizeof(uint32));
#if defined(SCUMM_BIG_ENDIAN)
for (i=0; i<_maxNrObjects; i++)
_classData[i] = FROM_LE_32(_classData[i]);
#endif
break;
case MKID('RNAM'):
fileSeek(_fileHandle, itemsize-8,1);
break;
case MKID('DROO'):
readResTypeList(1,MKID('ROOM'),"room");
break;
case MKID('DSCR'):
readResTypeList(2,MKID('SCRP'),"script");
break;
case MKID('DCOS'):
readResTypeList(3,MKID('COST'),"costume");
break;
case MKID('MAXS'):
fileReadWordLE();
fileReadWordLE();
fileReadWordLE();
fileReadWordLE();
fileReadWordLE();
fileReadWordLE();
fileReadWordLE();
fileReadWordLE();
fileReadWordLE();
break;
case MKID('DSOU'):
readResTypeList(4,MKID('SOUN'),"sound");
break;
default:
error("Bad ID %c%c%c%c found in directory!", blocktype&0xFF, blocktype>>8, blocktype>>16, blocktype>>24);
return;
}
}
clearFileReadFailed(_fileHandle);
if (numblock!=8)
error("Not enough blocks read from directory");
openRoom(-1);
_numGlobalScriptsUsed = _maxScripts;
_dynamicRoomOffsets = true;
}
void Scumm::readResTypeList(int id, uint32 tag, const char *name) {
int num;
#if defined(SCUMM_BIG_ENDIAN)
int i;
#endif
debug(9, "readResTypeList(%d,%x,%s)",id,FROM_LE_32(tag),name);
num = fileReadWordLE();
if (num>0xFF) {
error("Too many %ss (%d) in directory", name, num);
}
allocResTypeData(id, tag, num, name, 1);
fileRead(_fileHandle, res.roomno[id], num);
fileRead(_fileHandle, res.roomoffs[id], num*sizeof(uint32));
#if defined(SCUMM_BIG_ENDIAN)
for (i=0; i<num; i++)
res.roomoffs[id][i] = FROM_LE_32(res.roomoffs[id][i]);
#endif
}
void Scumm::allocResTypeData(int id, uint32 tag, int num, const char *name, int mode) {
debug(9, "allocResTypeData(%d,%x,%d,%s,%d)",id,FROM_LE_32(tag),num,name,mode);
res.mode[id] = mode;
res.num[id] = num;
res.tags[id] = tag;
res.name[id] = name;
res.address[id] = (byte**)alloc(num*sizeof(void*));
res.flags[id] = (byte*)alloc(num*sizeof(byte));
if (mode) {
res.roomno[id] = (byte*)alloc(num*sizeof(byte));
res.roomoffs[id] = (uint32*)alloc(num*sizeof(uint32));
}
}
void Scumm::loadCharset(int no) {
int i;
byte *ptr;
debug(9, "loadCharset(%d)",no);
checkRange(_maxCharsets-1, 1, no, "Loading illegal charset %d");
ensureResourceLoaded(6, no);
ptr = getResourceAddress(6, no);
for (i=0; i<15; i++) {
_charsetData[no][i+1] = ptr[i+14];
}
}
void Scumm::nukeCharset(int i) {
checkRange(_maxCharsets-1, 1, i, "Nuking illegal charset %d");
nukeResource(6, i);
}
void Scumm::ensureResourceLoaded(int type, int i) {
void *addr;
debug(9, "ensureResourceLoaded(%d,%d)", type, i);
if (type==1 && i>127) {
i = _resourceMapper[i&127];
}
if (i==0)
return;
addr = res.address[type][i];
if (addr)
return;
loadResource(type, i);
if (type==1 && i==_roomResource)
vm.vars[VAR_ROOM_FLAG] = 1;
}
int Scumm::loadResource(int type, int index) {
int roomNr, i;
uint32 fileOffs;
uint32 size, tag;
debug(9, "loadResource(%d,%d)", type,index);
roomNr = getResourceRoomNr(type, index);
if (roomNr == 0 || index >= res.num[type]) {
error("%s %d undefined",
res.name[type],index);
}
if (type==1) {
fileOffs = 0;
} else {
fileOffs = res.roomoffs[type][index];
if (fileOffs==0xFFFFFFFF)
return 0;
}
do {
for (i=0; i<5; i++) {
_resIndexToLoad = index;
_resTypeToLoad = type;
openRoom(roomNr);
fileSeek(_fileHandle, fileOffs + _fileOffset, SEEK_SET);
if (type==4) {
fileReadDwordLE();
fileReadDwordLE();
return readSoundResource(type, index);
}
tag = fileReadDword();
if (tag != res.tags[type]) {
error("%s %d not in room %d at %d+%d",
res.name[type], type, roomNr, _fileOffset, fileOffs);
}
size = fileReadDwordBE();
fileSeek(_fileHandle, -8, SEEK_CUR);
fileRead(_fileHandle, createResource(type, index, size), size);
/* dump the resource */
#ifdef DUMP_SCRIPTS
if(type==2) {
dumpResource("script-", index, getResourceAddress(2, index));
}
#endif
if (!fileReadFailed(_fileHandle)) {
_scummTimer = 0;
return 1;
}
nukeResource(type, index);
}
error("Cannot read resource");
} while(1);
}
int Scumm::readSoundResource(int type, int index) {
uint32 resStart, size, tag, size2;
byte *ptr;
int i;
debug(9, "readSoundResource(%d,%d)", type, index);
resStart = 0;
fileReadDwordLE();
size = fileReadDwordBE();
while (size>resStart) {
tag = fileReadDword();
size2 = fileReadDwordBE();
resStart += size2 + 8;
for (i=0,ptr=_soundTagTable; i<_numSoundTags; i++,ptr+=5) {
/* endian OK, tags are in native format */
if (READ_UINT32_UNALIGNED(ptr) == tag) {
fileSeek(_fileHandle, -8, SEEK_CUR);
fileRead(_fileHandle,createResource(type, index, size2+8), size+8);
return 1;
}
}
fileSeek(_fileHandle, size2, SEEK_CUR);
}
res.roomoffs[type][index] = 0xFFFFFFFF;
return 0;
}
int Scumm::getResourceRoomNr(int type, int index) {
if (type==1)
return index;
return res.roomno[type][index];
}
byte *Scumm::getResourceAddress(int type, int index) {
byte *ptr;
debug(9, "getResourceAddress(%d,%d)", type, index);
checkHeap();
validateResource("getResourceAddress", type, index);
if (res.mode[type] && !res.address[type][index]) {
ensureResourceLoaded(type, index);
}
setResourceFlags(type, index, 1);
ptr=(byte*)res.address[type][index];
if (!ptr)
return NULL;
return ptr + 8;
}
void Scumm::setResourceFlags(int type, int index, byte flag) {
res.flags[type][index] &= 0x80;
res.flags[type][index] |= flag;
}
byte *Scumm::createResource(int type, int index, uint32 size) {
byte *ptr;
checkHeap();
debug(9, "createResource(%d,%d,%d)", type, index,size);
if (size > 65536*4+37856)
error("Invalid size allocating");
validateResource("allocating", type, index);
nukeResource(type, index);
ptr = (byte*)alloc(size + 8);
if (ptr==NULL) {
error("Out of memory while allocating %d", size);
}
res.address[type][index] = ptr;
setResourceFlags(type, index, 1);
return ptr + 8; /* skip header */
}
void Scumm::validateResource(const char *str, int type, int index) {
if (type<1 || type>15 || index<0 || index >= res.num[type]) {
error("%d Illegal Glob type %d num %d", str, type, index);
}
}
void Scumm::nukeResource(int type, int index) {
debug(9, "nukeResource(%d,%d)", type, index);
checkHeap();
assert( res.address[type] );
assert( index>=0 && index < res.num[type]);
if (res.address[type][index]) {
free(res.address[type][index]);
res.address[type][index] = 0;
}
}
void Scumm::unkResourceProc() {
int i;
for (i=1; i<16; i++) {
}
/* TODO: not implemented */
warning("unkResourceProc: not implemented");
}
byte *Scumm::findResource(uint32 tag, byte *searchin) {
uint32 size;
if (searchin) {
searchin+=4;
_findResSize = READ_BE_UINT32_UNALIGNED(searchin);
_findResHeaderSize = 8;
_findResPos = searchin+4;
goto startScan;
}
do {
size = READ_BE_UINT32_UNALIGNED(_findResPos+4);
if ((int32)size <= 0) {
error("(%c%c%c%c) Not found in %d... illegal block len %d",
tag&0xFF,(tag>>8)&0xFF,(tag>>16)&0xFF,(tag>>24)&0xFF,
0,
size);
return NULL;
}
_findResHeaderSize += size;
_findResPos += size;
startScan:;
if (_findResHeaderSize >= _findResSize)
return NULL;
/* endian OK, tags are in native format */
} while (READ_UINT32_UNALIGNED(_findResPos) != tag);
return _findResPos;
}
byte *Scumm::findResource2(uint32 tag, byte *searchin) {
uint32 size;
if (searchin) {
searchin+=4;
_findResSize2 = READ_BE_UINT32_UNALIGNED(searchin);
_findResHeaderSize2 = 8;
_findResPos2 = searchin+4;
goto startScan;
}
do {
size = READ_BE_UINT32_UNALIGNED(_findResPos2+4);
if ((int32)size <= 0) {
error("(%c%c%c%c) Not found in %d... illegal block len %d",
tag&0xFF,(tag>>8)&0xFF,(tag>>16)&0xFF,(tag>>24)&0xFF,
0,
size);
return NULL;
}
_findResHeaderSize2 += size;
_findResPos2 += size;
startScan:;
if (_findResHeaderSize2 >= _findResSize2)
return NULL;
/* endian OK, tags are in native format */
} while (READ_UINT32_UNALIGNED(_findResPos2) != tag);
return _findResPos2;
}
void Scumm::lock(int type, int i) {
validateResource("Locking", type, i);
res.flags[type][i] |= 0x80;
}
void Scumm::unlock(int type, int i) {
validateResource("Unlocking", type, i);
res.flags[type][i] &= ~0x7F;
}
void Scumm::loadPtrToResource(int type, int resindex, byte *source) {
byte *ptr, *alloced;
int i,len;
nukeResource(type, resindex);
if (!source) {
ptr = _scriptPointer;
} else {
ptr = source;
}
len = 0;
do {
i = *ptr++;
if (!i) break;
len++;
if (i==0xFF)
ptr += 3, len += 3;
} while (1);
if (++len <= 1)
return;
alloced = createResource(type, resindex, len);
if (!source) {
alloced[0] = fetchScriptByte();
for (i=1; i<len; i++)
alloced[i] = *_scriptPointer++;
} else {
for(i=0; i<len; i++)
alloced[i] = source[i];
}
}
void Scumm::heapClear(int mode) {
/* TODO: implement this */
warning("heapClear: not implemented");
}
void Scumm::unkHeapProc2(int a, int b) {
warning("unkHeapProc2: not implemented");
}
void Scumm::unkResProc(int a, int b) {
error("unkResProc:not implemented");
}

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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Change Log:
* $Log$
* Revision 1.1 2001/10/09 14:30:13 strigeus
* Initial revision
*
*
*/
#include "stdafx.h"
#include "scumm.h"
bool Scumm::saveState(const char *filename) {
FILE *out = fopen(filename,"wb");
if (out==NULL)
return false;
saveOrLoad(out,true);
fclose(out);
return true;
}
bool Scumm::loadState(const char *filename) {
FILE *out = fopen(filename,"rb");
if (out==NULL)
return false;
saveOrLoad(out,false);
fclose(out);
return true;
}
void Scumm::saveOrLoad(FILE *inout, bool mode) {
_saveLoadStream = inout;
_saveOrLoad = mode;
}
void Scumm::saveLoadBytes(void *b, int len) {
if (_saveOrLoad)
fwrite(b, 1, len, _saveLoadStream);
else
fread(b, 1, len, _saveLoadStream);
}

2857
script.cpp Normal file
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File diff suppressed because it is too large Load diff

1234
scumm.h Normal file
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scummsys.h Normal file
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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Change Log:
* $Log$
* Revision 1.1 2001/10/09 14:30:14 strigeus
* Initial revision
*
*
*/
#if defined(WIN32)
#define SCUMM_LITTLE_ENDIAN
#define FORCEINLINE __forceinline
#define NORETURN _declspec(noreturn)
typedef unsigned char byte;
typedef unsigned char uint8;
typedef unsigned short uint16;
typedef unsigned long uint32;
typedef unsigned int uint;
typedef signed char int8;
typedef signed short int16;
typedef signed long int32;
#define START_PACK_STRUCTS pack (push,1)
#define END_PACK_STRUCTS pack(pop)
#elif defined(UNIX)
#define FORCEINLINE inline
#define NORETURN
#define CDECL
typedef unsigned char byte;
typedef unsigned char uint8;
typedef unsigned short uint16;
typedef unsigned long uint32;
typedef unsigned int uint;
typedef signed char int8;
typedef signed short int16;
typedef signed long int32;
#define START_PACK_STRUCTS pack (1)
#define END_PACK_STRUCTS pack ()
#else
#error No system type defined
#endif
#if defined(SCUMM_LITTLE_ENDIAN)
#if defined(SCUMM_NEED_ALIGNMENT)
#error Little endian processors that need alignment is not implemented
#endif
#define MKID(a) ((((a)>>24)&0xFF) | (((a)>>8)&0xFF00) | (((a)<<8)&0xFF0000) | (((a)<<24)&0xFF000000))
int FORCEINLINE READ_LE_UINT16(void *ptr) {
return *(uint16*)(ptr);
}
int FORCEINLINE READ_BE_UINT16(void *ptr) {
return (((byte*)ptr)[0]<<8)|((byte*)ptr)[1];
}
uint32 FORCEINLINE READ_LE_UINT32(void *ptr) {
return *(uint32*)(ptr);
}
uint32 FORCEINLINE READ_BE_UINT32(void *ptr) {
byte *b = (byte*)ptr;
return (b[0]<<24)+(b[1]<<16)+(b[2]<<8)+(b[3]);
}
#define READ_BE_UINT32_UNALIGNED READ_BE_UINT32
#define READ_BE_UINT16_UNALIGNED READ_BE_UINT16
#define READ_UINT32_UNALIGNED(a) (*((uint32*)a))
#define FROM_LE_32(__a__) __a__
#define FROM_LE_16(__a__) __a__
#define TO_BE_32(a) ((((a)>>24)&0xFF) | (((a)>>8)&0xFF00) | (((a)<<8)&0xFF0000) | (((a)<<24)&0xFF000000))
#elif defined(SCUMM_BIG_ENDIAN)
#define MKID(a) (a)
uint32 FORCEINLINE FROM_LE_32(uint32 a) {
return ((a>>24)&0xFF) + ((a>>8)&0xFF00) + ((a<<8)&0xFF0000) + ((a<<24)&0xFF000000);
}
uint16 FORCEINLINE FROM_LE_16(uint16 a) {
return ((a>>8)&0xFF) + ((a<<8)&0xFF00);
}
uint32 FORCEINLINE READ_LE_UINT32(void *ptr) {
byte *b = (byte*)ptr;
return (b[3]<<24)+(b[2]<<16)+(b[1]<<8)+(b[0]);
}
uint32 FORCEINLINE READ_BE_UINT32(void *ptr) {
return *(uint32*)(ptr);
}
int FORCEINLINE READ_LE_UINT16(void *ptr) {
byte *b = (byte*)ptr;
return (b[1]<<8) + b[0];
}
int FORCEINLINE READ_BE_UINT16(void *ptr) {
return *(uint16*)(ptr);
}
int FORCEINLINE READ_BE_UINT16_UNALIGNED(void *ptr) {
return (((byte*)ptr)[0]<<8)|((byte*)ptr)[1];
}
uint32 FORCEINLINE READ_BE_UINT32_UNALIGNED(void *ptr) {
byte *b = (byte*)ptr;
return (b[0]<<24)+(b[1]<<16)+(b[2]<<8)+(b[3]);
}
#define READ_UINT32_UNALIGNED READ_BE_UINT32_UNALIGNED
#define TO_BE_32(a) (a)
#else
#error No endianness defined
#endif

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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Change Log:
* $Log$
* Revision 1.1 2001/10/09 14:30:13 strigeus
* Initial revision
*
*
*/
#include "stdafx.h"
#include "scumm.h"
void Scumm::initThings() {
readIndexFile(1);
allocResTypeData(5, MKID('NONE'), 0x50, "inventory", 0);
allocResTypeData(12,MKID('NONE'),10, "temp", 0);
allocResTypeData(11,MKID('NONE'),5, "scale table", 0);
allocResTypeData(9, MKID('NONE'),13,"actor name", 0);
allocResTypeData(10, MKID('NONE'),10,"buffer", 0);
allocResTypeData(8, MKID('NONE'),100,"verb", 0);
allocResTypeData(7, MKID('NONE'),0x32,"string", 0);
allocResTypeData(13, MKID('NONE'),0x32,"flobject", 0);
allocResTypeData(14, MKID('NONE'),10,"boxes", 0);
readIndexFile(2);
initVideoMode();
initKbdAndMouse();
detectSound();
initRandSeeds();
}
void Scumm::initVideoMode() {
}
void Scumm::initKbdAndMouse() {
}
void Scumm::detectSound() {
}
void Scumm::initRandSeeds() {
_randSeed1 = 0xA943DE35;
_randSeed2 = 0x37A9ED27;
}
uint Scumm::getRandomNumber(uint max) {
/* TODO: my own random number generator */
_randSeed1 = 0xDEADBEEF * (_randSeed1 + 1);
_randSeed1 = (_randSeed1>>13) | (_randSeed1<<19);
return _randSeed1%(max+1);
}
void Scumm::scummInit() {
int i;
Actor *a;
debug(9, "scummInit");
readIndexFile(3);
loadCharset(1);
initScreens(0, 16, 320, 144);
setShake(0);
setCursor(0);
for (i=1,a=getFirstActor(); ++a,i<13; i++) {
a->number = i;
initActor(a, 1);
}
memset(vm.vars, 0, sizeof(vm.vars));
memset(vm.bitvars, 0, sizeof(vm.bitvars));
memset(vm.scriptoffs, 0, sizeof(vm.scriptoffs));
memset(vm.inventory, 0, sizeof(vm.inventory));
_defaultTalkDelay = 60;
vm.vars[37] = 4;
_numNestedScripts = 0;
vm.cutSceneStackPointer = 0;
memset(vm.cutScenePtr, 0, sizeof(vm.cutScenePtr));
memset(vm.cutSceneData, 0, sizeof(vm.cutSceneData));
for (i=0; i<_maxVerbs; i++) {
verbs[i].verbid = 0;
verbs[i].right = 319;
verbs[i].oldleft = -1;
verbs[i].type = 0;
verbs[i].color = 2;
verbs[i].hicolor = 0;
verbs[i].charset_nr = 1;
verbs[i].curmode = 0;
verbs[i].saveid = 0;
verbs[i].center=0;
verbs[i].key = 0;
}
camera._leftTrigger = 10;
camera._rightTrigger = 30;
camera._mode = 0;
camera._follows = 0;
virtscr[0].xstart = 0;
vm.vars[9] = 11;
_lightsValueA = _lightsValueB = 7;
vm.vars[59] = 3;
mouse.x = 104;
mouse.y = 56;
_ENCD_offs = 0;
_EXCD_offs = 0;
_unkTabIndex = 0xFF;
_currentScript = 0xFF;
_currentRoom = 0;
_numObjectsInRoom = 0;
_actorToPrintStrFor = 0;
charset._bufPos = 0;
_haveMsg = 0;
_screenStartStrip = 0;
vm.vars[25] = 0;
_talkDelay = 0;
_keepText = false;
_cursorState = 0;
_userPut = 0;
_newEffect = 129;
_fullRedraw = 1;
clearDrawObjectQueue();
for (i=0; i<6; i++) {
textslot.x[i] = 2;
textslot.y[i] = 5;
textslot.right[i] = 319;
textslot.color[i] = 0xF;
textslot.center[i] = 0;
textslot.charset[i] = 0;
}
_numInMsgStack = 0;
createResource(0xC, 6, 500);
initScummVars();
vm.vars[54] = -0x50;
getGraphicsPerformance();
}
void Scumm::initScummVars() {
vm.vars[VAR_CURRENTDRIVE] = _currentDrive;
vm.vars[VAR_FIXEDDISK] = checkFixedDisk();
vm.vars[VAR_SOUNDCARD] = _soundCardType;
vm.vars[VAR_VIDEOMODE] = _videoMode;
vm.vars[VAR_HEAPSPACE] = _heapSpace;
vm.vars[VAR_MOUSEPRESENT] = _mousePresent;
vm.vars[VAR_SOUNDPARAM] = _soundParam;
vm.vars[VAR_SOUNDPARAM2] = _soundParam2;
vm.vars[VAR_SOUNDPARAM3] = _soundParam3;
}
void Scumm::checkRange(int max, int min, int no, const char *str) {
if (no < min || no > max) {
error("Value %d is out of bounds (%d,%d) msg %s", no, min,max, str);
}
}
void Scumm::scummMain() {
int tmr, i;
Actor *a;
charset._vm = this;
cost._vm = this;
_exe_name = "monkey2";
_fileHandle = NULL;
_bootParam = 0;
_debugMode = 1;
initThings();
scummInit();
vm.vars[VAR_VERSION] = 21;
vm.vars[VAR_DEBUGMODE] = _debugMode;
runScript(1,0,0,&_bootParam);
_scummTimer = 0;
do {
if (_playBackFile) {
while ((_scummTimer>>2) < vm.vars[VAR_PLAYBACKTIMER]) {}
_scummTimer = vm.vars[VAR_PLAYBACKTIMER] << 2;
}
updateScreen(this);
vm.vars[VAR_TIMER] = _scummTimer >> 2;
do {
waitForTimer(this);
tmr = _scummTimer >> 2;
if (_fastMode)
tmr += 15;
} while (tmr < vm.vars[VAR_TIMER_NEXT]);
_scummTimer = 0;
vm.vars[VAR_TMR_1] += tmr;
vm.vars[VAR_TMR_2] += tmr;
vm.vars[VAR_TMR_3] += tmr;
vm.vars[VAR_TMR_4] += tmr;
if (tmr > 15)
tmr = 15;
decreaseScriptDelay(tmr);
_talkDelay -= tmr;
if (_talkDelay<0) _talkDelay=0;
processKbd();
/* XXX: memory low check skipped */
vm.vars[VAR_CAMERA_CUR_POS] = camera._curPos;
vm.vars[VAR_HAVE_MSG] = _haveMsg;
vm.vars[VAR_VIRT_MOUSE_X] = _virtual_mouse_x;
vm.vars[VAR_VIRT_MOUSE_Y] = _virtual_mouse_y;
vm.vars[VAR_MOUSE_X] = mouse.x;
vm.vars[VAR_MOUSE_Y] = mouse.y;
vm.vars[VAR_DEBUGMODE] = _debugMode;
if (_saveLoadFlag) {
error("Loading/saving not implemented");
}
if (_completeScreenRedraw) {
_completeScreenRedraw = 0;
clearUpperMask();
charset._hasMask = false;
redrawVerbs();
_fullRedraw = 1;
for (i=0,a=getFirstActor(); i<13; i++,a++)
a->needRedraw = 1;
}
runAllScripts();
checkExecVerbs();
checkAndRunVar33();
if (_currentRoom==0) {
gdi.unk4 = 0;
CHARSET_1();
unkVirtScreen2();
unkSoundProc22();
camera._lastPos = camera._curPos;
continue;
}
walkActors();
moveCamera();
fixObjectFlags();
CHARSET_1();
if (camera._curPos != camera._lastPos || _BgNeedsRedraw || _fullRedraw) {
redrawBGAreas();
}
processDrawQue();
setActorRedrawFlags();
resetActorBgs();
if (!(vm.vars[VAR_DRAWFLAGS]&2) && vm.vars[VAR_DRAWFLAGS]&4) {
error("Flashlight not implemented in this version");
}
processActors(); /* process actors makes the heap invalid */
clear_fullRedraw();
cyclePalette();
palManipulate();
if (dseg_4F8A) {
screenEffect(_newEffect);
dseg_4F8A = 0;
clearClickedStatus();
}
if (_cursorState > 0) {
verbMouseOver(checkMouseOver(mouse.x, mouse.y));
}
gdi.unk4 = _cursorState > 0;
unkVirtScreen2();
playActorSounds();
unkSoundProc22();
camera._lastPos = camera._curPos;
} while (1);
}
void Scumm::startScene(int room, Actor *a, int objectNr) {
int i;
Actor *at;
checkHeap();
removeMouseCursor();
clearMsgQueue();
unkVirtScreen4(_switchRoomEffect2);
_newEffect = _switchRoomEffect;
if (_currentScript!=0xFF) {
if (vm.slot[_currentScript].type==1 || vm.slot[_currentScript].type==4) {
if(vm.slot[_currentScript].cutsceneOverride!=0)
error("Object %d stopped with active cutscene/override in exit", vm.slot[_currentScript].number);
_currentScript = 0xFF;
} else if (vm.slot[_currentScript].type==3) {
if (vm.slot[_currentScript].cutsceneOverride!=0)
error("Script %d stopped with active cutscene/override in exit", vm.slot[_currentScript].number);
_currentScript = 0xFF;
}
}
vm.vars[VAR_NEW_ROOM] = room;
runExitScript();
killScriptsAndResources();
stopCycle(0);
for(i=1,at=getFirstActor(); ++at,i<13; i++) {
if (at->visible)
hideActor(at);
}
for (i=0; i<0x100; i++)
cost._transEffect[i] = i;
clearDrawObjectQueue();
vm.vars[VAR_ROOM] = room;
_fullRedraw = 1;
_roomResource = _currentRoom = 0xFF;
unkResourceProc();
_currentRoom = room;
vm.vars[VAR_ROOM] = room;
if (room >= 0x80)
_roomResource = _resourceMapper[room&0x7F];
else
_roomResource = room;
vm.vars[VAR_ROOM_RESOURCE] = _roomResource;
if (room!=0)
ensureResourceLoaded(1, room);
if (_currentRoom == 0) {
_ENCD_offs = _EXCD_offs = 0;
_numObjectsInRoom = 0;
return;
}
initRoomSubBlocks();
loadRoomObjects();
camera._mode = 1;
camera._curPos = camera._destPos = 160;
if (_roomResource == 0)
return;
vm.vars[VAR_CAMERA_MAX] = (_scrWidthIn8Unit<<3) - 160;
vm.vars[VAR_CAMERA_MIN] = 160;
memset(actorDrawBits, 0, sizeof(actorDrawBits));
if (a) {
if (whereIsObject(objectNr)!=1 &&
whereIsObject(objectNr)!=4)
error("startScene: Object %d is not in room %d", objectNr, _currentRoom);
getObjectXYPos(objectNr);
putActor(a, _xPos, _yPos, _currentRoom);
startAnimActor(a, 0x3E, _dir^1);
a->moving = 0;
}
showActors();
dseg_3A76 = 0;
runEntryScript();
if (a && dseg_3A76==0) {
getObjectXYPos(objectNr);
putActor(a, _xPos, _yPos, _currentRoom);
a->moving = 0;
}
dseg_4F8A = 1;
checkHeap();
}
void Scumm::initRoomSubBlocks() {
int i,offs;
byte *ptr;
byte *roomptr;
_ENCD_offs = 0;
_EXCD_offs = 0;
nukeResource(0xE, 1);
nukeResource(0xE, 2);
for (i=1; i<_maxScaleTable; i++)
nukeResource(0xB, i);
roomptr = getResourceAddress(1, _roomResource);
ptr = findResource(MKID('RMHD'), roomptr);
_scrWidthIn8Unit = READ_LE_UINT16(&((RoomHeader*)ptr)->width) >> 3;
_scrHeight = READ_LE_UINT16(&((RoomHeader*)ptr)->height);
_IM00_offs = findResource(MKID('IM00'), findResource(MKID('RMIM'), roomptr)) -
roomptr;
ptr = findResource(MKID('EXCD'), roomptr);
if (ptr) {
_EXCD_offs = ptr - roomptr;
#ifdef DUMP_SCRIPTS
dumpResource("exit-", _roomResource, ptr);
#endif
}
ptr = findResource(MKID('ENCD'), roomptr);
if (ptr) {
_ENCD_offs = ptr - roomptr;
#ifdef DUMP_SCRIPTS
dumpResource("entry-", _roomResource, ptr);
#endif
}
ptr = findResource(MKID('BOXD'), roomptr);
if (ptr) {
int size = READ_BE_UINT32_UNALIGNED(ptr+4);
createResource(0xE, 2, size);
roomptr = getResourceAddress(1, _roomResource);
ptr = findResource(MKID('BOXD'), roomptr);
memcpy(getResourceAddress(0xE, 2), ptr, size);
}
ptr = findResource(MKID('BOXM'), roomptr);
if (ptr) {
int size = READ_BE_UINT32_UNALIGNED(ptr+4);
createResource(0xE, 1, size);
roomptr = getResourceAddress(1, _roomResource);
ptr = findResource(MKID('BOXM'), roomptr);
memcpy(getResourceAddress(0xE, 1), ptr, size);
}
ptr = findResource(MKID('SCAL'), roomptr);
if (ptr) {
offs = ptr - roomptr;
for (i=1; i<_maxScaleTable; i++, offs+=8) {
int a = READ_LE_UINT16(roomptr + offs + 8);
int b = READ_LE_UINT16(roomptr + offs + 10);
int c = READ_LE_UINT16(roomptr + offs + 12);
int d = READ_LE_UINT16(roomptr + offs + 14);
if (a || b || c || d) {
setScaleItem(i, b, a, d, c);
roomptr = getResourceAddress(1, _roomResource);
}
}
}
memset(_localScriptList, 0, (0x100 - _numGlobalScriptsUsed) * 4);
roomptr = getResourceAddress(1, _roomResource);
ptr = findResource(MKID('LSCR'), roomptr);
while (ptr) {
_localScriptList[ptr[8] - _numGlobalScriptsUsed] = ptr - roomptr;
#ifdef DUMP_SCRIPTS
do {
char buf[32];
sprintf(buf,"room-%d-",_roomResource);
dumpResource(buf, ptr[8], ptr);
} while (0);
#endif
ptr = findResource(MKID('LSCR'), NULL);
}
_CLUT_offs = findResource(MKID('CLUT'), roomptr) - roomptr;
ptr = findResource(MKID('EPAL'), roomptr);
if (ptr)
_EPAL_offs = ptr - roomptr;
setPaletteFromRes();
initCycl(findResource(MKID('CYCL'), roomptr) + 8);
ptr = findResource(MKID('TRNS'), roomptr);
if (ptr)
gdi.transparency = ptr[8];
else
gdi.transparency = 255;
initBGBuffers();
}
void Scumm::setScaleItem(int slot, int a, int b, int c, int d) {
byte *ptr;
int cur,amounttoadd,i,tmp;
ptr = createResource(0xB, slot, 200);
if (a==c)
return;
cur = (b-d)*a;
amounttoadd = d - b;
for (i=200; i>0; i--) {
tmp = cur / (c - a) + b;
if (tmp<1) tmp=1;
if (tmp>255) tmp=255;
*ptr++ = tmp;
cur += amounttoadd;
}
}
void Scumm::dumpResource(char *tag, int index, byte *ptr) {
char buf[256];
FILE *out;
return;
uint32 size = READ_BE_UINT32_UNALIGNED(ptr+4);
sprintf(buf, "d:\\monkey2\\dumps\\%s%d.dmp", tag,index);
out = fopen(buf,"rb");
if (!out) {
out = fopen(buf, "wb");
if (!out)
return;
fwrite(ptr, size, 1, out);
}
fclose(out);
}
void Scumm::clear_fullRedraw() {
_fullRedraw = 0;
}
void Scumm::clearClickedStatus() {
checkKeyHit();
_mouseButStat = 0;
_leftBtnPressed = 0;
_rightBtnPressed = 0;
}
int Scumm::checkKeyHit() {
int a = _keyPressed;
_keyPressed = 0;
return a;
}
void Scumm::unkRoomFunc3(int a, int b, int c, int d, int e) {
warning("stub unkRoomFunc3(%d,%d,%d,%d,%d)",a,b,c,d,e);
}
void Scumm::unkRoomFunc2(int a, int b, int c, int d, int e) {
byte *cptr, *cur;
int num;
byte color;
if (_videoMode==0xE) {
warning("stub unkRoomFunc2(%d,%d,%d,%d,%d)",a,b,c,d,e);
}
if (_videoMode==0x13) {
cptr = getResourceAddress(1, _roomResource) + _CLUT_offs + 8 + a*3;
cur = _currentPalette + a*3;
if (a <= b) {
num = b - a + 1;
do {
if (c != 0xFF) {
color = *cptr++ * (c>>2) / 0xFF;
} else {
color = *cptr++ >> 2;
}
if(color>63) color = 63;
*cur++=color;
if (d != 0xFF) {
color = *cptr++ * (d>>2) / 0xFF;
} else {
color = *cptr++ >> 2;
}
if(color>63) color = 63;
*cur++=color;
if (e != 0xFF) {
color = *cptr++ * (e>>2) / 0xFF;
} else {
color = *cptr++ >> 2;
}
if(color>63) color = 63;
*cur++=color;
} while (--num);
}
setDirtyColors(a,b);
}
}
void Scumm::unkRoomFunc4(int a, int b, int c, int d, int e) {
/* TODO: implement this */
warning("unkRoomFunc4: not implemented");
}
void Scumm::pauseGame(int i) {
/* TODO: implement this */
warning("pauseGame: not implemented");
}
void Scumm::shutDown(int i) {
/* TODO: implement this */
warning("shutDown: not implemented");
}
void Scumm::processKbd() {
getKeyInput(0);
_virtual_mouse_x = mouse.x + virtscr[0].xstart;
_virtual_mouse_y = mouse.y + virtscr[0].topline;
if (_virtual_mouse_y < 0)
_virtual_mouse_y = -1;
if (_virtual_mouse_y >= virtscr[0].height)
_virtual_mouse_y = -1;
if (!_lastKeyHit)
return;
if (_lastKeyHit==vm.vars[VAR_RESTART_KEY]) {
warning("Restart not implemented");
pauseGame(1);
return;
}
if (_lastKeyHit==vm.vars[VAR_PAUSE_KEY]) {
warning("Pause not implemented");
/* pause */
return;
}
if (_lastKeyHit==vm.vars[VAR_CUTSCENEEXIT_KEY]) {
uint32 offs = vm.cutScenePtr[vm.cutSceneStackPointer];
if (offs) {
ScriptSlot *ss = &vm.slot[vm.cutSceneScript[vm.cutSceneStackPointer]];
ss->offs = offs;
ss->status = 2;
ss->freezeCount = 0;
ss->cutsceneOverride--;
vm.vars[VAR_OVERRIDE] = 1;
vm.cutScenePtr[vm.cutSceneStackPointer] = 0;
}
}
if (_lastKeyHit==vm.vars[VAR_TALKSTOP_KEY]) {
_talkDelay = 0;
return;
}
_mouseButStat = _lastKeyHit;
}
int Scumm::getKeyInput(int a) {
_mouseButStat = 0;
_lastKeyHit = checkKeyHit();
if (a==0)
convertKeysToClicks();
if (mouse.x<0) mouse.x=0;
if (mouse.x>319) mouse.x=319;
if (mouse.y<0) mouse.y=0;
if (mouse.y>199) mouse.y=199;
if (_leftBtnPressed&1 && _rightBtnPressed&1) {
_mouseButStat = 0;
_lastKeyHit = vm.vars[VAR_CUTSCENEEXIT_KEY];
} else if (_leftBtnPressed&1) {
_mouseButStat = 0x8000;
} else if (_rightBtnPressed&1) {
_mouseButStat = 0x4000;
}
_leftBtnPressed &= ~1;
_rightBtnPressed &= ~1;
return _lastKeyHit;
}
void Scumm::convertKeysToClicks() {
if (_lastKeyHit && _cursorState>0) {
if (_lastKeyHit==9) {
_mouseButStat = 0x4000;
} else if (_lastKeyHit==13) {
_mouseButStat = 0x8000;
} else
return;
_lastKeyHit = 0;
}
}
Actor *Scumm::derefActorSafe(int id, const char *errmsg) {
if (id<1 || id>=13)
error("Invalid actor %d in %s", id, errmsg);
return derefActor(id);
}
extern Scumm scumm;
void NORETURN CDECL error(const char *s, ...) {
char buf[1024];
va_list va;
va_start(va, s);
vsprintf(buf, s, va);
va_end(va);
if (scumm._currentScript != 0xFF) {
fprintf(stderr, "Error(%d): %s!\nPress a key to quit.\n", scumm.vm.slot[scumm._currentScript].number, buf);
} else {
fprintf(stderr, "Error: %s!\nPress a key to quit.\n", buf);
}
exit(1);
}
void CDECL warning(const char *s, ...) {
char buf[1024];
va_list va;
va_start(va,s);
vsprintf(buf, s, va);
va_end(va);
fprintf(stderr, "WARNING: %s!\n", buf);
}
void CDECL debug(int level, const char *s, ...) {
char buf[1024];
va_list va;
if (level>5)
return;
va_start(va,s);
vsprintf(buf, s, va);
va_end(va);
printf("%s\n", buf);
fflush(stdout);
}
void checkHeap() {
#if 0
if (_heapchk() != _HEAPOK) {
error("Heap is invalid!");
}
#endif
}

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scummvm.dsp Normal file
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# Microsoft Developer Studio Project File - Name="scummvm" - Package Owner=<4>
# Microsoft Developer Studio Generated Build File, Format Version 6.00
# ** DO NOT EDIT **
# TARGTYPE "Win32 (x86) Console Application" 0x0103
CFG=scummvm - Win32 Debug
!MESSAGE This is not a valid makefile. To build this project using NMAKE,
!MESSAGE use the Export Makefile command and run
!MESSAGE
!MESSAGE NMAKE /f "scummvm.mak".
!MESSAGE
!MESSAGE You can specify a configuration when running NMAKE
!MESSAGE by defining the macro CFG on the command line. For example:
!MESSAGE
!MESSAGE NMAKE /f "scummvm.mak" CFG="scummvm - Win32 Debug"
!MESSAGE
!MESSAGE Possible choices for configuration are:
!MESSAGE
!MESSAGE "scummvm - Win32 Release" (based on "Win32 (x86) Console Application")
!MESSAGE "scummvm - Win32 Debug" (based on "Win32 (x86) Console Application")
!MESSAGE
# Begin Project
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# PROP Scc_ProjName ""
# PROP Scc_LocalPath ""
CPP=cl.exe
RSC=rc.exe
!IF "$(CFG)" == "scummvm - Win32 Release"
# PROP BASE Use_MFC 0
# PROP BASE Use_Debug_Libraries 0
# PROP BASE Output_Dir "Release"
# PROP BASE Intermediate_Dir "Release"
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# PROP Use_Debug_Libraries 0
# PROP Output_Dir "Release"
# PROP Intermediate_Dir "Release"
# PROP Ignore_Export_Lib 0
# PROP Target_Dir ""
# ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /Yu"stdafx.h" /FD /c
# ADD CPP /nologo /Zp4 /W3 /GX /O1 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /Yu"stdafx.h" /FD /c
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BSC32=bscmake.exe
# ADD BASE BSC32 /nologo
# ADD BSC32 /nologo
LINK32=link.exe
# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386
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# ADD CPP /nologo /W3 /Gm /GX /Zi /Od /D "WIN32" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /Yu"stdafx.h" /FD /GZ /c
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# ADD RSC /l 0x41d /d "_DEBUG"
BSC32=bscmake.exe
# ADD BASE BSC32 /nologo
# ADD BSC32 /nologo
LINK32=link.exe
# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
# ADD LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib sdl.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
!ENDIF
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# Name "scummvm - Win32 Release"
# Name "scummvm - Win32 Debug"
# Begin Group "Source Files"
# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat"
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SOURCE=.\costume.cpp
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SOURCE=.\gfx.cpp
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SOURCE=.\object.cpp
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SOURCE=.\resource.cpp
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SOURCE=.\saveload.cpp
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SOURCE=.\script.cpp
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SOURCE=.\scummvm.cpp
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SOURCE=.\sdl.cpp
# End Source File
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SOURCE=.\sound.cpp
# End Source File
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SOURCE=.\StdAfx.cpp
# ADD CPP /Yc"stdafx.h"
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SOURCE=.\string.cpp
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# End Source File
# End Group
# Begin Group "Resource Files"
# PROP Default_Filter "ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe"
# End Group
# Begin Source File
SOURCE=.\ReadMe.txt
# End Source File
# End Target
# End Project

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Microsoft Developer Studio Workspace File, Format Version 6.00
# WARNING: DO NOT EDIT OR DELETE THIS WORKSPACE FILE!
###############################################################################
Project: "scummvm"=.\scummvm.dsp - Package Owner=<4>
Package=<5>
{{{
}}}
Package=<4>
{{{
}}}
###############################################################################
Global:
Package=<5>
{{{
}}}
Package=<3>
{{{
}}}
###############################################################################

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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Change Log:
* $Log$
* Revision 1.1 2001/10/09 14:30:13 strigeus
* Initial revision
*
*
*/
#include "stdafx.h"
#include "scumm.h"
#define SCALEUP_2x2
Scumm scumm;
static SDL_Surface *screen;
void updatePalette(Scumm *s) {
SDL_Color colors[256];
int first = s->_palDirtyMin;
int num = s->_palDirtyMax - first + 1;
int i;
byte *data = s->_currentPalette;
data += first*3;
for (i=0; i<num; i++,data+=3) {
colors[i].r = data[0]<<2;
colors[i].g = data[1]<<2;
colors[i].b = data[2]<<2;
colors[i].unused = 0;
}
SDL_SetColors(screen, colors, first, num);
s->_palDirtyMax = -1;
s->_palDirtyMin = 0x3E8;
}
void waitForTimer(Scumm *s) {
SDL_Event event;
byte dontPause = true;
do {
while (SDL_PollEvent(&event)) {
switch(event.type) {
case SDL_KEYDOWN:
s->_keyPressed = event.key.keysym.sym;
break;
case SDL_MOUSEMOTION:
#if !defined(SCALEUP_2x2)
s->mouse.x = event.motion.x;
s->mouse.y = event.motion.y;
#else
s->mouse.x = event.motion.x>>1;
s->mouse.y = event.motion.y>>1;
#endif
break;
case SDL_MOUSEBUTTONDOWN:
if (event.button.button==SDL_BUTTON_LEFT)
s->_leftBtnPressed |= 1;
else if (event.button.button==SDL_BUTTON_RIGHT)
s->_rightBtnPressed |= 1;
break;
#if 0
case SDL_ACTIVEEVENT:
if (event.active.state & SDL_APPINPUTFOCUS) {
dontPause = event.active.gain;
}
break;
#endif
case SDL_QUIT:
exit(1);
break;
}
}
SDL_Delay(dontPause ? 10 : 100);
} while (!dontPause);
s->_scummTimer+=3;
}
#define MAX_DIRTY_RECTS 40
SDL_Rect dirtyRects[MAX_DIRTY_RECTS];
int numDirtyRects;
bool fullRedraw;
/* Copy part of bitmap */
void blitToScreen(Scumm *s, byte *src,int x, int y, int w, int h) {
byte *dst;
SDL_Rect *r;
int i;
if (SDL_LockSurface(screen)==-1)
error("SDL_LockSurface failed: %s.\n", SDL_GetError());
#if !defined(SCALEUP_2x2)
dst = (byte*)screen->pixels + y*320 + x;
if (numDirtyRects==MAX_DIRTY_RECTS)
fullRedraw = true;
else if (!fullRedraw) {
r = &dirtyRects[numDirtyRects++];
r->x = x;
r->y = y;
r->w = w;
r->h = h;
}
do {
memcpy(dst, src, w);
dst += 640;
src += 320;
} while (--h);
#else
dst = (byte*)screen->pixels + y*640*2 + x*2;
if (numDirtyRects==MAX_DIRTY_RECTS)
fullRedraw = true;
else if (!fullRedraw) {
r = &dirtyRects[numDirtyRects++];
r->x = x*2;
r->y = y*2;
r->w = w*2;
r->h = h*2;
}
do {
i=0;
do {
dst[i*2] = dst[i*2+1] = src[i];
} while (++i!=w);
memcpy(dst+640, dst, w*2);
dst += 640*2;
src += 320;
} while (--h);
#endif
SDL_UnlockSurface(screen);
}
void updateScreen(Scumm *s) {
if(s->_palDirtyMax != -1) {
updatePalette(s);
}
if (fullRedraw) {
SDL_UpdateRect(screen, 0,0,0,0);
#if defined(SHOW_AREA)
debug(2,"update area 100 %%");
#endif
} else if (numDirtyRects) {
#if defined(SHOW_AREA)
int area = 0,i;
for (i=0; i<numDirtyRects; i++)
area += (dirtyRects[i].w * dirtyRects[i].h);
debug(2,"update area %f %%", (float)area/640);
#endif
SDL_UpdateRects(screen, numDirtyRects, dirtyRects);
}
numDirtyRects = 0;
}
#undef main
int main(int argc, char* argv[]) {
if (SDL_Init(SDL_INIT_VIDEO)==-1) {
printf("Could not initialize SDL: %s.\n", SDL_GetError());
return -1;
}
printf("%d %d, %d %d, %d %d %d, %d %d %d %d %d\n",
sizeof(int8), sizeof(uint8),
sizeof(int16), sizeof(uint16),
sizeof(int32), sizeof(uint32),
sizeof(void*),
sizeof(Box), sizeof(MouseCursor),sizeof(CodeHeader),
sizeof(ImageHeader),
&((CodeHeader*)0)->unk4
);
/* Clean up on exit */
atexit(SDL_Quit);
#if !defined(SCALEUP_2x2)
screen = SDL_SetVideoMode(320, 200, 8, SDL_SWSURFACE);
#else
screen = SDL_SetVideoMode(640, 400, 8, SDL_SWSURFACE);
#endif
scumm._videoMode = 0x13;
scumm.scummMain();
return 0;
}

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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Change Log:
* $Log$
* Revision 1.1 2001/10/09 14:30:13 strigeus
* Initial revision
*
*
*/
#include "stdafx.h"
#include "scumm.h"
void Scumm::addSoundToQueue(int sound) {
vm.vars[VAR_LAST_SOUND] = sound;
ensureResourceLoaded(4, sound);
addSoundToQueue2(sound);
}
void Scumm::addSoundToQueue2(int sound) {
if (_soundQue2Pos < 10) {
_soundQue2[_soundQue2Pos++] = sound;
}
}
void Scumm::unkSoundProc22() {
byte d;
int i,j;
int num;
int16 data[16];
while (_soundQue2Pos){
d=_soundQue2[--_soundQue2Pos];
if (d)
playSound(d);
}
#if 0
for (i=0; i<_soundQuePos; ) {
num = _soundQue[i++];
for (j=0; j<16; j++)
data[j] = 0;
if (num>0) {
for (j=0; j<num; j++)
_soundQue[i+j] = data[j];
i += num;
/* XXX: not implemented */
warning("unkSoundProc22: not implemented");
// vm.vars[VAR_SOUNDRESULT] = soundProcPtr1(...);
}
}
#endif
_soundQuePos = 0;
}
void Scumm::playSound(int sound) {
getResourceAddress(4, sound);
/* XXX: not implemented */
warning("stub playSound(%d)", sound);
}
int Scumm::unkSoundProc23(int a) {
/* TODO: implement this */
warning("unkSoundProc23: not implemented");
return 0;
}
void Scumm::unkSoundProc1(int a) {
/* TODO: implement this */
warning("unkSoundProc: not implemented");
}

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// stdafx.cpp : source file that includes just the standard includes
// scummvm.pch will be the pre-compiled header
// stdafx.obj will contain the pre-compiled type information
#include "stdafx.h"
// TODO: reference any additional headers you need in STDAFX.H
// and not in this file

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#if defined(WIN32)
#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
#define WIN32_LEAN_AND_MEAN // Exclude rarely-used stuff from Windows headers
#define NOGDICAPMASKS
#define OEMRESOURCE
#define NONLS
#define NOICONS
#define NOMCX
#define NOPROFILER
#define NOKANJI
#define NOSERVICE
#define NOMETAFILE
#define NOCOMM
#define NOCRYPT
#define NOIME
#define NOATOM
#define NOCTLMGR
#define NOCLIPBOARD
#define NOMEMMGR
#define NOSYSMETRICS
#define NOMENUS
#define NOOPENFILE
#define NOWH
#define NOSOUND
#define NODRAWTEXT
#include <SDL.h>
#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <io.h>
#include <stdarg.h>
#include <fcntl.h>
#include <conio.h>
#include <malloc.h>
#include <assert.h>
#else
#include <SDL.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <unistd.h>
#include <stdio.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <assert.h>
#endif

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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Change Log:
* $Log$
* Revision 1.1 2001/10/09 14:30:13 strigeus
* Initial revision
*
*
*/
#include "stdafx.h"
#include "scumm.h"
int CharsetRenderer::getStringWidth(int arg, byte *text, int pos) {
byte *ptr;
int width,offs,w;
byte chr;
width = 1;
ptr = _vm->getResourceAddress(6, _curId) + 29;
while ( (chr = text[pos++]) != 0) {
if (chr==0xD)
break;
if (chr=='@')
continue;
if (chr==254) chr=255;
if (chr==255) {
chr=text[pos++];
if (chr==3)
break;
if (chr==8) {
if (arg==1)
break;
while (text[pos]==' ')
text[pos++] = '@';
continue;
}
if (chr==1 || chr==2)
break;
}
offs = READ_LE_UINT32(ptr + chr*4 + 4);
if (offs) {
if (ptr[offs+2]>=0x80) {
w = ptr[offs+2] - 0x100;
} else {
w = ptr[offs+2];
}
width += ptr[offs] + w;
}
}
return width;
}
void CharsetRenderer::addLinebreaks(int a, byte *str, int pos, int maxwidth) {
int lastspace = -1;
int curw = 1;
int offs,w;
byte *ptr;
byte chr;
ptr = _vm->getResourceAddress(6, _curId) + 29;
while ( (chr=str[pos++]) != 0) {
if (chr=='@')
continue;
if (chr==254) chr=255;
if (chr==255) {
chr = str[pos++];
if (chr==3)
break;
if (chr==8) {
if (a==1) {
curw = 1;
} else {
while (str[pos]==' ')
str[pos++] = '@';
}
continue;
}
if (chr==1) {
curw = 1;
continue;
}
if (chr==2)
break;
}
if (chr==' ')
lastspace = pos - 1;
offs = READ_LE_UINT32(ptr + chr*4 + 4);
if (offs) {
if (ptr[offs+2]>=0x80) {
w = ptr[offs+2] - 0x100;
} else {
w = ptr[offs+2];
}
curw += w + ptr[offs];
}
if (lastspace==-1)
continue;
if (curw > maxwidth) {
str[lastspace] = 0xD;
curw = 1;
pos = lastspace + 1;
lastspace = -1;
}
}
}
void Scumm::unkMessage1() {
byte buf[100];
_msgPtrToAdd = buf;
_messagePtr = addMessageToStack(_messagePtr);
}
void Scumm::unkMessage2() {
byte buf[100], *tmp;
_msgPtrToAdd = buf;
tmp = _messagePtr = addMessageToStack(_messagePtr);
if (_stringColor[3]==0)
_stringColor[3] = 4;
error("unkMessage2: call to printScummMessage(%s)", buf);
vm.vars[0] = 0;
_messagePtr = tmp;
}
void Scumm::CHARSET_1() {
int s, i, t, c;
int frme;
Actor *a;
if (!_haveMsg || (camera._destPos>>3) != (camera._curPos>>3) ||
camera._curPos != camera._lastPos
) return;
a = NULL;
if (vm.vars[VAR_TALK_ACTOR] != 0xFF)
a = derefActorSafe(vm.vars[VAR_TALK_ACTOR], "CHARSET_1");
if (a && _stringOverhead[0]!=0) {
_stringXpos[0] = a->x - camera._curPos + 160;
if (vm.vars[VAR_TALK_STRING_Y] < 0) {
s = (a->scaley * (int)vm.vars[VAR_TALK_STRING_Y]) / 0xFF;
_stringYpos[0] = ((vm.vars[VAR_TALK_STRING_Y]-s)>>1) + s - a->elevation + a->y;
} else {
_stringYpos[0] = vm.vars[VAR_TALK_STRING_Y];
}
if (_stringYpos[0] < 1)
_stringYpos[0] = 1;
if (_stringXpos[0] < 80)
_stringXpos[0] = 80;
if (_stringXpos[0] > 240)
_stringXpos[0] = 240;
}
charset._top = _stringYpos[0];
charset._left = _stringXpos[0];
charset._left2 = _stringXpos[0];
charset._curId = _stringCharset[0];
if (a && a->charset)
charset._curId = a->charset;
charset._center = _stringCenter[0];
charset._right = _stringRight[0];
charset._color = _charsetColor;
dseg_4E3C = 0;
for (i=0; i<4; i++)
charset._colorMap[i] = _charsetData[charset._curId][i];
if (_keepText) {
charset._strLeft = charset._mask_left;
charset._strRight = charset._mask_right;
charset._strTop = charset._mask_top;
charset._strBottom = charset._mask_bottom;
}
if (!_haveMsg || _talkDelay)
return;
if (_haveMsg!=0xFF) {
stopTalk();
return;
}
if (a) {
startAnimActor(a, a->talkFrame1, a->facing);
}
_talkDelay = _defaultTalkDelay;
if (!_keepText) {
restoreCharsetBg();
_stringXpos2[0] = _stringXpos[0];
_stringYpos2[0] = _stringYpos[0];
}
t = charset._right - _stringXpos2[0] - 1;
if (charset._center) {
if (t > _stringXpos2[0])
t = _stringXpos2[0];
t <<= 1;
}
charset.addLinebreaks(0, charset._buffer, charset._bufPos, t);
_lastXstart = virtscr[0].xstart;
if (charset._center) {
_stringXpos2[0] -= charset.getStringWidth(0, charset._buffer, charset._bufPos) >> 1;
}
charset._disableOffsX = charset._unk12 = !_keepText;
do {
c = charset._buffer[charset._bufPos++];
if (c==0) {
_haveMsg = 1;
_keepText = false;
break;
}
if (c != 13) {
if (c==0xFE)
c=0xFF;
if (c!=0xFF) {
PrintChar:;
charset._left = _stringXpos2[0];
charset._top = _stringYpos2[0];
if (!vm.vars[VAR_CHARFLAG]) {
charset.printChar(c);
}
_stringXpos2[0] = charset._left;
_stringYpos2[0] = charset._top;
_talkDelay += vm.vars[VAR_CHARINC];
continue;
}
c = charset._buffer[charset._bufPos++];
if (c==3) {
_haveMsg = 0xFF;
_keepText = false;
break;
}
if (c!=1) {
if (c==2) {
_haveMsg = 0;
_keepText = true;
break;
}
if (c==9) {
frme = charset._buffer[charset._bufPos++];
frme |= charset._buffer[charset._bufPos++]<<8;
if (a)
startAnimActor(a, frme, a->facing);
}
goto PrintChar;
}
}
_stringXpos2[0] = _stringXpos[0];
if (charset._center) {
_stringXpos2[0] -= charset.getStringWidth(0, charset._buffer, charset._bufPos)>>1;
}
_stringYpos2[0] += getResourceAddress(6,charset._curId)[30];
charset._disableOffsX = 1;
} while (1);
charset._mask_left = charset._strLeft;
charset._mask_right = charset._strRight;
charset._mask_top = charset._strTop;
charset._mask_bottom = charset._strBottom;
}
void Scumm::drawString(int a) {
byte buf[256];
byte *charsetptr,*space;
int i;
byte byte1, chr;
_msgPtrToAdd = buf;
_messagePtr = addMessageToStack(_messagePtr);
charset._left2 = charset._left = _stringXpos[a];
charset._top = _stringYpos[a];
charset._curId = _stringCharset[a];
charset._center = _stringCenter[a];
charset._right = _stringRight[a];
charset._color = _stringColor[a];
dseg_4E3C = 0;
charset._unk12 = 1;
charset._disableOffsX = 1;
charsetptr = getResourceAddress(6, charset._curId);
assert(charsetptr);
charsetptr += 29;
for(i=0; i<4; i++)
charset._colorMap[i] = _charsetData[charset._curId][i];
byte1 = charsetptr[1];
_msgPtrToAdd = buf;
/* trim from the right */
space = NULL;
while (*_msgPtrToAdd){
if (*_msgPtrToAdd==' ') {
if (!space) space = _msgPtrToAdd;
} else {
space = NULL;
}
_msgPtrToAdd++;
}
if(space) *space='\0';
if (charset._center) {
charset._left -= charset.getStringWidth(a, buf, 0) >> 1;
}
charset._ignoreCharsetMask = 1;
if (!buf[0]) {
buf[0] = ' ';
buf[1] = 0;
}
for (i=0; (chr=buf[i++]) != 0; ) {
if (chr==254) chr=255;
if (chr==255) {
chr = buf[i++];
switch(chr) {
case 9:
i += 2;
break;
case 1: case 8:
if (charset._center) {
charset._left = charset._left2 - charset.getStringWidth(a, buf, i);
} else {
charset._left = charset._left2;
}
charset._top += byte1;
}
} else {
charset.printChar(chr);
}
}
charset._ignoreCharsetMask = 0;
_stringXpos2[a] = charset._left;
_stringYpos2[a] = charset._top;
}
byte *Scumm::addMessageToStack(byte *msg) {
int num, numorg;
byte *ptr, chr;
numorg = num = _numInMsgStack;
ptr = getResourceAddress(0xC, 6);
if (ptr==NULL)
error("Message stack not allocated");
while ( (chr=*msg++) != 0) {
if (num > 500)
error("Message stack overflow");
ptr[num++] = chr;
if (chr==255) {
ptr[num++] = chr = *msg++;
if (chr==0 || chr!=2 && chr!=3 && chr!=8) {
ptr[num++] = chr = *msg++;
ptr[num++] = chr = *msg++;
}
}
}
ptr[num++] = 0;
_numInMsgStack = num;
num = numorg;
while (1) {
ptr = getResourceAddress(0xC, 6);
chr = ptr[num++];
if (chr == 0)
break;
if (chr == 0xFF) {
ptr = getResourceAddress(0xC, 6);
chr = ptr[num++];
switch(chr) {
case 4:
unkAddMsgToStack2(
READ_LE_UINT16(getResourceAddress(0xC, 6)+ num)
);
num+=2;
break;
case 5:
unkAddMsgToStack3(
READ_LE_UINT16(getResourceAddress(0xC, 6)+ num)
);
num+=2;
break;
case 6:
unkAddMsgToStack4(
READ_LE_UINT16(getResourceAddress(0xC, 6)+ num)
);
num+=2;
break;
case 7:
unkAddMsgToStack5(
READ_LE_UINT16(getResourceAddress(0xC, 6)+num)
);
num+=2;
break;
case 9:
*_msgPtrToAdd++ = 0xFF;
*_msgPtrToAdd++ = chr;
*_msgPtrToAdd++ = getResourceAddress(0xC, 6)[num++];
*_msgPtrToAdd++ = getResourceAddress(0xC, 6)[num++];
break;
default:
*_msgPtrToAdd++ = 0xFF;
*_msgPtrToAdd++ = chr;
}
} else {
if (chr!='@') {
*_msgPtrToAdd++ = chr;
}
}
}
*_msgPtrToAdd = 0;
_numInMsgStack = numorg;
return msg;
}
void Scumm::unkAddMsgToStack2(int var) {
int num,max;
byte flag;
num = readVar(var);
if (num < 0) {
*_msgPtrToAdd++ = '-';
num = -num;
}
flag = 0;
max = 10000;
do {
if (num>=max || flag) {
*_msgPtrToAdd++ = num/max + '0';
num -= (num/max)*max;
flag=1;
}
max/=10;
if (max==1) flag=1;
} while (max);
}
void Scumm::unkAddMsgToStack3(int var) {
int num,i;
num = readVar(var);
if (num) {
for (i=1; i<_maxVerbs; i++) {
if (num==verbs[i].verbid && !verbs[i].type && !verbs[i].saveid) {
addMessageToStack(getResourceAddress(8, i));
break;
}
}
} else {
addMessageToStack((byte*)"");
}
}
void Scumm::unkAddMsgToStack4(int var) {
int num;
num = readVar(var);
if (num) {
addMessageToStack(getObjOrActorName(num));
} else {
addMessageToStack((byte*)"");
}
}
void Scumm::unkAddMsgToStack5(int var) {
byte *ptr;
if (var) {
ptr = getResourceAddress(7, var);
if (ptr) {
addMessageToStack(ptr);
return;
}
}
addMessageToStack((byte*)"");
}
void Scumm::initCharset(int charsetno) {
int i;
if (!getResourceAddress(6, charsetno))
loadCharset(charsetno);
textslot.charset[0] = charsetno;
textslot.charset[1] = charsetno;
for (i=0; i<0x10; i++)
charset._colorMap[i] = _charsetData[charsetno][i];
}
void CharsetRenderer::printChar(int chr) {
int d,right;
VirtScreen *vs;
_vm->checkRange(_vm->_maxCharsets-1, 1, _curId, "Printing with bad charset %d");
if (_vm->findVirtScreen(_top)==-1)
return;
vs = &_vm->virtscr[_vm->gdi.virtScreen];
if (chr=='@')
return;
_ptr = _vm->getResourceAddress(6, _curId) + 29;
_bpp = _unk2 = *_ptr;
_invNumBits = 8 - _bpp;
_bitMask = 0xFF << _invNumBits;
_colorMap[1] = _color;
_charOffs = READ_LE_UINT32(_ptr + chr*4 + 4);
if (!_charOffs)
return;
assert(_charOffs < 0x10000);
_charPtr = _ptr + _charOffs;
_width = _charPtr[0];
_height = _charPtr[1];
if (_unk12) {
_strLeft = 0;
_strTop = 0;
_strRight = 0;
_strBottom = 0;
}
if (_disableOffsX) {
_offsX = 0;
} else {
d = _charPtr[2];
if (d>=0x80)
d -= 0x100;
_offsX = d;
}
d = _charPtr[3];
if(d>=0x80)
d -= 0x100;
_offsY = d;
_top += _offsY;
_left += _offsX;
right = _left + _width;
if (right>_right+1 || _left < 0) {
_left = right;
_top -= _offsY;
return;
}
_disableOffsX = 0;
if (_unk12) {
_strLeft = _left;
_strTop = _top;
_strRight = _left;
_strBottom = _top;
_unk12 = 0;
}
if (_left < _strLeft)
_strLeft = _left;
if (_top < _strTop)
_strTop = _top;
_drawTop = _top - vs->topline;
_bottom = _drawTop + _height + _offsY;
_vm->updateDirtyRect(_vm->gdi.virtScreen, _left, right, _drawTop, _bottom, 0);
if (_vm->gdi.virtScreen==0)
_hasMask = true;
_bg_ptr = _vm->getResourceAddress(0xA, _vm->gdi.virtScreen+1)
+ vs->xstart + _drawTop * 320 + _left;
_where_to_draw_ptr = _vm->getResourceAddress(0xA, _vm->gdi.virtScreen+5)
+ vs->xstart + _drawTop * 320 + _left;
_mask_ptr = _vm->getResourceAddress(0xA, 9)
+ _drawTop * 40 + _left/8
+ _vm->_screenStartStrip;
_revBitMask = revBitMask[_left&7];
_virtScreenHeight = vs->height;
_charPtr += 4;
drawBits();
_left += _width;
if (_left > _strRight)
_strRight = _left;
if (_top + _height > _strBottom)
_strBottom = _top + _height;
_top -= _offsY;
}
void CharsetRenderer::drawBits() {
bool usemask;
byte *dst, *mask,maskmask;
int y,x;
int maskpos;
int color;
byte numbits,bits;
usemask = (_vm->gdi.virtScreen==0 && _ignoreCharsetMask==0);
bits = *_charPtr++;
numbits = 8;
dst = _bg_ptr;
mask = _mask_ptr;
y = 0;
for(y=0; y<_height && y+_drawTop < _virtScreenHeight;) {
maskmask = _revBitMask;
maskpos = 0;
for (x=0; x<_width; x++) {
color = (bits&_bitMask)>>_invNumBits;
if (color) {
if (usemask) {
mask[maskpos] |= maskmask;
}
*dst = _colorMap[color];
}
dst++;
bits <<= _bpp;
if ((numbits -= _bpp)==0) {
bits = *_charPtr++;
numbits = 8;
}
if ((maskmask>>=1)==0) {
maskmask = 0x80;
maskpos++;
}
}
dst = (_bg_ptr += 320);
mask += 40;
y++;
}
}

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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Change Log:
* $Log$
* Revision 1.1 2001/10/09 14:30:13 strigeus
* Initial revision
*
*
*/
#include "stdafx.h"
#include "scumm.h"
void *Scumm::fileOpen(const char *filename, int mode) {
_fileMode = mode;
_whereInResToRead = 0;
clearFileReadFailed(_fileHandle);
if (mode==1)
return fopen(filename, "rb");
if (mode==2) {
error("fileOpen: write not supported");
}
return NULL;
}
void Scumm::fileClose(void *file) {
if (_fileMode==1 || _fileMode==2)
fclose((FILE*)file);
}
bool Scumm::fileReadFailed(void *file) {
return _fileReadFailed != 0;
}
void Scumm::clearFileReadFailed(void *file) {
_fileReadFailed = false;
}
bool Scumm::fileEof(void *file) {
FILE *a = (FILE*)file;
return feof((FILE*)file) != 0;
}
void Scumm::fileSeek(void *file, long offs, int whence) {
switch(_fileMode) {
case 1: case 2:
fseek((FILE*)file, offs, whence);
return;
case 3:
_whereInResToRead = offs;
return;
}
}
void Scumm::fileRead(void *file, void *ptr, uint32 size) {
byte *ptr2 = (byte*)ptr, *src;
switch(_fileMode) {
case 1:
if (size==0)
return;
if ((uint32)fread(ptr2, size, 1, (FILE*)file) != 1)
_fileReadFailed = true;
do {
*ptr2++ ^= _encbyte;
} while(--size);
return;
case 3:
if (size==0)
return;
src = getResourceAddress(0xC, 3) + _whereInResToRead;
_whereInResToRead += size;
do {
*ptr2++ = *src++ ^ _encbyte;
} while (--size);
return;
}
}
int Scumm::fileReadByte() {
byte b;
byte *src;
switch(_fileMode) {
case 1:
if (fread(&b,1,1,(FILE*)_fileHandle) != 1)
_fileReadFailed = true;
return b ^ _encbyte;
case 3:
src = getResourceAddress(0xC, 3) + _whereInResToRead;
_whereInResToRead++;
return *src ^ _encbyte;
}
return 0;
}
uint Scumm::fileReadWordLE() {
uint a = fileReadByte();
uint b = fileReadByte();
return a|(b<<8);
}
uint32 Scumm::fileReadDwordLE() {
uint a = fileReadWordLE();
uint b = fileReadWordLE();
return (b<<16)|a;
}
uint Scumm::fileReadWordBE() {
uint b = fileReadByte();
uint a = fileReadByte();
return a|(b<<8);
}
uint32 Scumm::fileReadDwordBE() {
uint b = fileReadWordBE();
uint a = fileReadWordBE();
return (b<<16)|a;
}
byte *Scumm::alloc(int size) {
byte *me = (byte*)::calloc(size+4,1);
*((uint32*)me) = 0xDEADBEEF;
return me + 4;
}
void Scumm::free(void *mem) {
byte *me = (byte*)mem - 4;
if ( *((uint32*)me) != 0xDEADBEEF) {
error("Freeing invalid block.");
}
*((uint32*)me) = 0xC007CAFE;
::free(me);
}
bool Scumm::checkFixedDisk() {
return true;
}

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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Change Log:
* $Log$
* Revision 1.1 2001/10/09 14:30:13 strigeus
* Initial revision
*
*
*/
#include "stdafx.h"
#include "scumm.h"
void Scumm::redrawVerbs() {
int i;
for (i=0; i<_maxVerbs; i++)
drawVerb(i, 0);
verbMouseOver(0);
}
void Scumm::checkExecVerbs() {
int i,over;
VerbSlot *vs;
if (_userPut<=0 || _mouseButStat==0)
return;
if (_mouseButStat < 0x200) {
/* Check keypresses */
vs = &verbs[1];
for (i=1; i<_maxVerbs; i++,vs++) {
if (vs->verbid && vs->saveid && vs->curmode==1) {
if (_mouseButStat == vs->key) {
runInputScript(1, vs->verbid, 1);
return;
}
}
}
runInputScript(4, _mouseButStat, 1);
} else if (_mouseButStat&0xC000) {
byte code = _mouseButStat&0x8000 ? 1 : 2;
if (virtscr[0].topline <= mouse.y || virtscr[0].topline + virtscr[0].height > mouse.y) {
over = checkMouseOver(mouse.x, mouse.y);
if (over != 0) {
runInputScript(1,verbs[over].verbid,code);
return;
}
runInputScript(2, 0, code);
} else {
over=checkMouseOver(mouse.x, mouse.y);
runInputScript(1, over!=0 ? verbs[over].verbid : 0, code);
}
}
}
void Scumm::verbMouseOver(int verb) {
if (_verbMouseOver==verb)
return;
if (verbs[_verbMouseOver].type!=1) {
drawVerb(_verbMouseOver, 0);
_verbMouseOver = verb;
}
if (verbs[verb].type!=1 && verbs[verb].hicolor) {
drawVerb(verb, 1);
_verbMouseOver = verb;
}
}
int Scumm::checkMouseOver(int x, int y) {
VerbSlot *vs;
int i = _maxVerbs;
vs = &verbs[i];
do {
if (vs->curmode!=1 || !vs->verbid || vs->saveid ||
y < vs->y || y >= vs->bottom)
continue;
if (vs->center) {
if (x < -(vs->right - vs->x - vs->x) || x >= vs->right)
continue;
} else {
if (x < vs->x || x >= vs->right)
continue;
}
return i;
} while (--vs, i--);
return 0;
}
void Scumm::drawVerb(int vrb, int mode) {
VerbSlot *vs;
byte color;
byte tmp;
if (!vrb)
return;
vs = &verbs[vrb];
if (!vs->saveid && vs->curmode && vs->verbid) {
if (vs->type==1) {
drawVerbBitmap(vrb, vs->x, vs->y);
return;
}
restoreVerbBG(vrb);
_stringCharset[4] = vs->charset_nr;
_stringXpos[4] = vs->x;
_stringYpos[4] = vs->y;
_stringRight[4] = 319;
_stringCenter[4] = vs->center;
if (mode && vs->hicolor)
color = vs->hicolor;
else
color = vs->color;
_stringColor[4] = color;
if (vs->curmode==2)
_stringColor[4] = vs->dimcolor;
_messagePtr = getResourceAddress(8, vrb);
assert(_messagePtr);
tmp = charset._center;
charset._center = 0;
drawString(4);
charset._center = tmp;
vs->right = charset._strRight;
vs->bottom = charset._strBottom;
vs->oldleft = charset._strLeft;
vs->oldright = charset._strRight;
vs->oldtop = charset._strTop;
vs->oldbottom = charset._strBottom;
charset._strLeft = charset._strRight;
} else {
restoreVerbBG(vrb);
}
}
void Scumm::restoreVerbBG(int verb) {
VerbSlot *vs;
vs = &verbs[verb];
if (vs->oldleft != -1) {
dseg_4E3C = vs->bkcolor;
restoreBG(vs->oldleft, vs->oldtop, vs->oldright, vs->oldbottom);
vs->oldleft = -1;
}
}
void Scumm::drawVerbBitmap(int vrb, int x, int y) {
int nozbufs;
VirtScreen *vs;
VerbSlot *vst;
byte twobufs, *imptr;
int ydiff, xstrip;
int imgw, imgh;
int i;
byte *IMHD_ptr;
if (findVirtScreen(y) == -1)
return;
_lastXstart = virtscr[0].xstart;
nozbufs = _numZBuffer;
_numZBuffer = 0;
vs = &virtscr[gdi.virtScreen];
twobufs = vs->alloctwobuffers;
vs->alloctwobuffers = 0;
xstrip = x>>3;
ydiff = y - vs->topline;
IMHD_ptr = findResource2(MKID('IMHD'), getResourceAddress(8, vrb));
imgw = READ_LE_UINT16(IMHD_ptr+0x14) >> 3;
imgh = READ_LE_UINT16(IMHD_ptr+0x16) >> 3;
imptr = findResource2(MKID('IM01'), NULL);
if (!imptr)
error("No image for verb %d", vrb);
for (i=0; i<imgw; i++) {
_drawBmpX = xstrip + i;
if (_drawBmpX < 40) {
_drawBmpY = ydiff;
gdi.numLinesToProcess = imgh<<3;
drawBmp(imptr, i, 1, 1, "Verb", READ_LE_UINT16(IMHD_ptr+8));
}
}
vst = &verbs[vrb];
vst->right = vst->x + imgw*8;
vst->bottom = vst->y + imgh*8;
vst->oldleft = vst->x;
vst->oldright = vst->right;
vst->oldtop = vst->y;
vst->oldbottom = vst->bottom;
_numZBuffer = nozbufs;
vs->alloctwobuffers = twobufs;
}
int Scumm::getVerbSlot(int id, int mode) {
int i;
for (i=1; i<_maxVerbs; i++) {
if (verbs[i].verbid == id && verbs[i].saveid == mode) {
return i;
}
}
return 0;
}
void Scumm::killVerb(int slot) {
VerbSlot *vs;
if (slot==0)
return;
vs = &verbs[slot];
vs->verbid = 0;
vs->curmode = 0;
nukeResource(8, slot);
if (vs->saveid==0) {
drawVerb(slot, 0);
verbMouseOver(0);
}
vs->saveid = 0;
}
void Scumm::setVerbObject(int room, int object, int verb) {
int numobj, i;
byte *obimptr;
uint32 imoffs,size;
byte *roomptr,*tmp_roomptr;
ImageHeader *imhd;
RoomHeader *roomhdr;
if (whereIsObject(object) == 4)
error("Can't grab verb image from flobject");
ensureResourceLoaded(1,room);
roomptr = getResourceAddress(1, room);
roomhdr = (RoomHeader*)findResource(MKID('RMHD'), roomptr);
numobj = READ_LE_UINT16(&roomhdr->numObjects);
if (numobj==0)
error("No images found in room %d", room);
if (numobj > 200)
error("More (%d) than %d objects in room %d", numobj, 200, room);
tmp_roomptr = roomptr;
for (i=1; i<=numobj; i++) {
obimptr = findResource(MKID('OBIM'), tmp_roomptr);
if (obimptr==NULL)
error("Not enough image blocks in room %d", room);
imhd = (ImageHeader*)findResource2(MKID('IMHD'), obimptr);
if ( READ_LE_UINT16(&imhd->obj_id) == object) {
imoffs = obimptr - roomptr;
size = READ_BE_UINT32_UNALIGNED(obimptr+4);
createResource(8, verb, size);
obimptr = getResourceAddress(1, room) + imoffs;
memcpy(getResourceAddress(8, verb), obimptr, size);
return;
}
tmp_roomptr = NULL;
}
error("Image %d not found in room %d", object, room);
}

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0.0.1 (2001-10-08):
- initial version

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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Change Log:
* $Log$
* Revision 1.1 2001/10/09 14:30:13 strigeus
* Initial revision
*
*
*/
#if USE_DIRECTX
#define INITGUID
#include <ddraw.h>
#endif
#include "stdafx.h"
#include <assert.h>
#if USE_DRAWDIB
#include <vfw.h>
#endif
#include "scumm.h"
#define SRC_WIDTH 320
#define SRC_HEIGHT 200
#define SRC_PITCH (320)
#define DEST_WIDTH 320
#define DEST_HEIGHT 200
#define USE_DIRECTX 0
#define USE_DRAWDIB 0
#define USE_GDI 1
#if USE_GDI
typedef struct DIB {
HBITMAP hSect;
byte *buf;
RGBQUAD *pal;
bool new_pal;
} DIB;
#endif
class WndMan {
HMODULE hInst;
HWND hWnd;
bool terminated;
#if USE_GDI
// BITMAPINFO *biHeader;
// byte *BmpBG;
public:
DIB dib;
private:
#endif
#if USE_DRAWDIB
BITMAPINFOHEADER *biHeader;
HDRAWDIB hdb;
#endif
public:
byte *_vgabuf;
Scumm *_scumm;
#if USE_DIRECTX
IDirectDrawSurface4 *MainSurf,*Surf2;
IDirectDraw *DxObject;
IDirectDraw4 *Dx4Object;
IDirectDrawPalette *DxPal;
bool OutOfGame;
void InitDirectX();
#endif
public:
void init();
bool handleMessage();
void run();
void setPalette(byte *ctab, int first, int num);
void writeToScreen();
#if USE_GDI
bool allocateDIB(int w, int h);
#endif
};
void Error(const char *msg) {
OutputDebugString(msg);
MessageBoxA(0, msg, "Error", MB_ICONSTOP);
exit(1);
}
int sel;
Scumm scumm;
WndMan wm[1];
void modifyslot(int sel, int what);
static LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) {
WndMan *wm = (WndMan*)GetWindowLong(hWnd, GWL_USERDATA);
switch (message)
{
case WM_DESTROY:
case WM_CLOSE:
PostQuitMessage(0);
break;
case WM_CHAR:
wm->_scumm->_keyPressed = wParam;
break;
case WM_MOUSEMOVE:
wm->_scumm->mouse.x = ((int16*)&lParam)[0];
wm->_scumm->mouse.y = ((int16*)&lParam)[1];
break;
case WM_LBUTTONDOWN:
wm->_scumm->_leftBtnPressed |= 1;
break;
case WM_RBUTTONDOWN:
wm->_scumm->_rightBtnPressed |= 1;
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;
}
#if USE_GDI
void copy_320x200_to_640x400(byte *s, byte *d) {
_asm {
push ebp
mov esi,s
mov edi,d
mov ebp,SRC_HEIGHT
againouter:
mov ebx,320/4
againinner:
mov eax,[esi]
mov dl,ah
mov dh,ah
shl edx,16
mov dl,al
mov dh,al
shr eax,16
mov cl,ah
mov ch,ah
shl ecx,16
mov cl,al
mov ch,al
mov [edi],edx
mov [edi+4],ecx
mov [edi+640],edx
mov [edi+644],ecx
add esi,4
add edi,8
dec ebx
jnz againinner
// add esi,15
add edi,640
dec ebp
jnz againouter
pop ebp
}
}
bool WndMan::allocateDIB(int w, int h) {
struct {
BITMAPINFOHEADER bih;
RGBQUAD rgb[256];
} d;
if (dib.hSect)
return true;
memset(&d.bih, 0, sizeof(d.bih));
d.bih.biSize = sizeof(d.bih);
d.bih.biWidth = w;
d.bih.biHeight = -h;
d.bih.biPlanes = 1;
d.bih.biBitCount = 8;
d.bih.biCompression = BI_RGB;
memcpy(d.rgb, dib.pal, 256*sizeof(RGBQUAD));
dib.new_pal=false;
dib.hSect = CreateDIBSection(0, (BITMAPINFO*)&d, DIB_RGB_COLORS, (void**)&dib.buf,
NULL, NULL);
return dib.hSect != NULL;
}
void WndMan::writeToScreen() {
RECT r;
HDC dc,bmpdc;
HBITMAP bmpOld;
// if (!BmpBG)
// BmpBG = (byte*)LocalAlloc(LMEM_FIXED, DEST_WIDTH*DEST_HEIGHT);
#if DEST_WIDTH==640
copy_320x200_to_640x400(_vgabuf, dib.buf);
#endif
#if DEST_WIDTH==320
if (_vgabuf) {
for (int y=0; y<200; y++) {
memcpy(dib.buf + y*320,_vgabuf + y*320, 320);
}
}
#endif
// setsel(dib.buf);
r.left = r.top = 0;
r.right = DEST_WIDTH;
r.bottom = DEST_HEIGHT;
dc = GetDC(hWnd);
bmpdc = CreateCompatibleDC(dc);
bmpOld = (HBITMAP)SelectObject(bmpdc, dib.hSect);
if (dib.new_pal) {
dib.new_pal = false;
SetDIBColorTable(bmpdc, 0, 256, dib.pal);
}
SetStretchBltMode(dc, BLACKONWHITE);
#if DEST_WIDTH==640
StretchBlt(dc, r.left, r.top, r.right-r.left, r.bottom-r.top, bmpdc, 0, 0, 640,480, SRCCOPY);
#endif
#if DEST_WIDTH==320
StretchBlt(dc, r.left, r.top, r.right-r.left, r.bottom-r.top, bmpdc, 0, 0, 320,200, SRCCOPY);
#endif
// //StretchDIBits(dc, r.left, r.top, r.right - r.left, r.bottom - r.top, 0, 0, DEST_WIDTH, DEST_HEIGHT, BmpBG, biHeader, DIB_RGB_COLORS, SRCCOPY);
SelectObject(bmpdc, bmpOld);
DeleteDC(bmpdc);
ReleaseDC(hWnd, dc);
}
void WndMan::setPalette(byte *ctab, int first, int num) {
int i;
#if 1
for (i=0; i<256; i++) {
dib.pal[i].rgbRed = ctab[i*3+0]<<2;
dib.pal[i].rgbGreen = ctab[i*3+1]<<2;
dib.pal[i].rgbBlue = ctab[i*3+2]<<2;
}
#else
for (i=0; i<256; i++) {
dib.pal[i].rgbRed = i;
dib.pal[i].rgbGreen = i;
dib.pal[i].rgbBlue = i;
}
#endif
dib.new_pal = true;
}
#endif
#if USE_DIRECTX
void WndMan::writeToScreen() {
RECT r;
DDSURFACEDESC2 dd;
r.left = r.top = 0;
r.right = SRC_WIDTH;
r.bottom = SRC_HEIGHT;
if (OutOfGame) {
if (GetForegroundWindow() != hWnd) return;
OutOfGame = false;
}
dd.dwSize = sizeof(dd);
int j;
do {
j = MainSurf->Lock(NULL, &dd, DDLOCK_WRITEONLY, NULL);
if (j!=DDERR_SURFACELOST) break;
if (MainSurf->Restore() != DD_OK) {
OutOfGame = true;
return;
}
} while (1);
if (j == DD_OK) {
byte *d = (byte*)dd.lpSurface;
byte *s = _vgabuf;
for(int h=SRC_HEIGHT;--h>=0; ) {
memcpy(d, s, SRC_WIDTH);
d+=dd.lPitch;
s+=SRC_PITCH;
}
MainSurf->Unlock(NULL);
}
}
void WndMan::setPalette(byte *ctab, int first, int num) {
PALETTEENTRY pal[256];
for (int i=0; i<256; i++) {
pal[i].peFlags = 0;
pal[i].peRed = *ctab++;
pal[i].peGreen = *ctab++;
pal[i].peBlue = *ctab++;
}
DxPal->SetEntries(0, 0, 256, (PALETTEENTRY*)&pal);
}
IDirectDrawSurface4 *CreateMainSurface(IDirectDraw4 *dd);
void WndMan::InitDirectX() {
if (DirectDrawCreate(NULL, &DxObject, NULL) != DD_OK) Error("DirectDrawCreate failed!");
if (DxObject->QueryInterface(IID_IDirectDraw4, (void**)&Dx4Object) != DD_OK) Error("QueryInterface failed!");
if (Dx4Object->SetCooperativeLevel(hWnd,DDSCL_NORMAL) != DD_OK) Error("SetCooperativeLevel failed!");
DDCAPS ddcaps;
BOOL bHasOverlay, bHasColorKey, bCanStretch;
ddcaps.dwSize = sizeof( ddcaps );
if (Dx4Object->GetCaps(&ddcaps, NULL ) != DD_OK) Error("GetCaps failed!");
/* Determine if the hardware supports overlay surfaces */
bHasOverlay = ddcaps.dwCaps & DDCAPS_OVERLAY;
/* Determine if the hardware supports colorkeying */
bHasColorKey = ((ddcaps.dwCaps & DDCAPS_COLORKEY) == DDCAPS_COLORKEY) ? TRUE : FALSE;
/* Determine if the hardware supports scaling of the overlay surface */
bCanStretch = ((ddcaps.dwCaps & DDCAPS_OVERLAYSTRETCH) == DDCAPS_OVERLAYSTRETCH) ? TRUE : FALSE;
if ( ( ddcaps.dwCaps & DDCAPS_ALIGNBOUNDARYDEST ) ||
( ddcaps.dwCaps & DDCAPS_ALIGNBOUNDARYSRC ) ||
( ddcaps.dwCaps & DDCAPS_ALIGNSIZEDEST ) ||
( ddcaps.dwCaps & DDCAPS_ALIGNSIZESRC ) ) {
Error("Alignment restriction!");
}
// Are any overlays available for use?
if ( ddcaps.dwMaxVisibleOverlays ==
ddcaps.dwCurrVisibleOverlays )
{
Error("No overlay free");
}
if (!bHasOverlay || !bHasColorKey || !bCanStretch) {
Error("Bad hardware!");
}
/* Create primary surface */
DDSURFACEDESC2 ddsd;
DDSCAPS ddscaps;
LPDIRECTDRAWSURFACE4 lpFrontBuffer;
LPDIRECTDRAWSURFACE4 lpBackBuffer;
LPDIRECTDRAWSURFACE4 lpPrimary;
HRESULT LastError;
RECT rectOverlaySource, rectOverlayDest;
DDOVERLAYFX ddofx;
// if (!CreateMainSurface(Dx4Object))
// Error("sad");
/* Create the primary surface */
memset(&ddsd, 0, sizeof(ddsd));
ddsd.dwSize = sizeof(ddsd);
ddsd.dwFlags = DDSD_CAPS | DDSD_BACKBUFFERCOUNT;
ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE|DDSCAPS_FLIP |
DDSCAPS_COMPLEX |
DDSCAPS_VIDEOMEMORY;
ddsd.dwBackBufferCount = 1;
if (Dx4Object->CreateSurface(&ddsd, &lpPrimary, NULL) != DD_OK)
Error("Main surface creation failed!");
/* Create a flippable scaleable overlay surface */
ddsd.dwSize = sizeof(ddsd);
ddsd.dwFlags = DDSD_CAPS | DDSD_WIDTH | DDSD_HEIGHT | DDSD_BACKBUFFERCOUNT | DDSD_PIXELFORMAT;
ddsd.ddsCaps.dwCaps = DDSCAPS_OVERLAY | DDSCAPS_FLIP | DDSCAPS_COMPLEX | DDSCAPS_VIDEOMEMORY;
ddsd.dwBackBufferCount = 1; /* One back buffer for triple buffering, set to 2 */
ddsd.dwWidth = 320;
ddsd.dwHeight = 240;
// ddsd.ddckCKDestOverlay.dwColorSpaceLowValue = 0x123456;
// ddsd.ddckCKDestOverlay.dwColorSpaceHighValue = 0x123456;
ddsd.ddpfPixelFormat.dwSize = sizeof(ddsd.ddpfPixelFormat);
ddsd.ddpfPixelFormat.dwFlags = DDPF_RGB;
ddsd.ddpfPixelFormat.dwFourCC = 0;
ddsd.ddpfPixelFormat.dwRGBBitCount = 16;
ddsd.ddpfPixelFormat.dwRBitMask = 0x7C00; //0x7C00 is a hexadecimal memory address
ddsd.ddpfPixelFormat.dwGBitMask = 0x03e0;
ddsd.ddpfPixelFormat.dwBBitMask = 0x001F;
ddsd.ddpfPixelFormat.dwRGBAlphaBitMask = 0;
// ddsd.ddpfPixelFormat.dwFlags = DDPF_RGB | DDPF_PALETTEINDEXED8;
// ddsd.ddpfPixelFormat.dwRGBBitCount = 8;
if ((LastError = Dx4Object->CreateSurface(&ddsd, &lpFrontBuffer, NULL)) != DD_OK) {
if (LastError==DDERR_NOOVERLAYHW )
Error("No hardware!");
else
Error("2nd surface failed");
}
#if 0
if (Dx4Object->SetCooperativeLevel(hWnd, DDSCL_FULLSCREEN | DDSCL_EXCLUSIVE) != DD_OK) Error("SetCooperativeLevel failed!");
// if (Dx4Object->SetDisplayMode(SRC_WIDTH,SRC_HEIGHT,8,0,DDSDM_STANDARDVGAMODE) != DD_OK) Error("SetDisplayMode failed!");
if (!(MainSurf = CreateMainSurface(Dx4Object))) Error("CreateMainSurface failed!");
if (!(Surf2 = Create2ndSurface(Dx4Object, _vgabuf))) Error("Create 2ndSurface failed!");
if (!(DxPal = CreateGamePalette(Dx4Object))) Error("CreateGamePalette failed!");
if (MainSurf->SetPalette(DxPal) != DD_OK) Error("SetPalette Failed!");
#endif
}
IDirectDrawSurface4 *CreateMainSurface(IDirectDraw4 *dd) {
DDSURFACEDESC2 d;
IDirectDrawSurface4 *ds;
// if(dd->GetGDISurface(&ds) != DD_OK)
// return NULL;
memset(&d, 0, sizeof(d));
d.dwSize = sizeof(d);
d.dwFlags = DDSD_CAPS;
d.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;
int i;
if ((i = dd->CreateSurface(&d, &ds, NULL)) != DD_OK)
return NULL;
return ds;
}
IDirectDrawSurface4 *Create2ndSurface(IDirectDraw4 *dd, byte *surfmem) {
DDSURFACEDESC2 d;
IDirectDrawSurface4 *ds;
memset(&d, 0, sizeof(d));
d.dwSize = sizeof(d);
d.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH | DDSD_PITCH | /*DDSD_LPSURFACE |*/ DDSD_PIXELFORMAT;
d.dwWidth = 640/*SRC_WIDTH*/;
d.dwHeight = 480/*SRC_HEIGHT*/;
d.lPitch = 640;
d.lpSurface = surfmem;
d.ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
d.ddpfPixelFormat.dwFlags = DDPF_RGB | DDPF_PALETTEINDEXED8;
d.ddpfPixelFormat.dwRGBBitCount = 8;
d.ddsCaps.dwCaps = DDSCAPS_OVERLAY;
int i;
if ((i = dd->CreateSurface(&d, &ds, NULL)) != DD_OK)
return NULL;
return ds;
}
IDirectDrawPalette *CreateGamePalette(IDirectDraw4 *dd) {
PALETTEENTRY pal[256];
int i;
IDirectDrawPalette *p;
memset(&pal, 0, sizeof(pal));
if ((i=dd->CreatePalette(DDPCAPS_8BIT | DDPCAPS_ALLOW256, pal, &p, NULL)) != DD_OK)
return NULL;
return p;
}
#endif
#if USE_DRAWDIB
void WndMan::writeToScreen() {
RECT r;
HDC dc;
r.left = r.top = 0;
r.right = DEST_WIDTH/2;
r.bottom = DEST_HEIGHT/2;
dc = GetDC(hWnd);
DrawDibRealize(hdb, dc, TRUE);
DrawDibDraw(hdb, dc, r.left, r.top, r.right-r.left, r.bottom-r.top, biHeader, _vgabuf, 0, 0, 320, 240, 0);
// StretchDIBits(dc, r.left, r.top, r.right - r.left, r.bottom - r.top, 0, 0, DEST_WIDTH, DEST_HEIGHT, BmpBG, biHeader, DIB_RGB_COLORS, SRCCOPY);
ReleaseDC(hWnd, dc);
}
void WndMan::setPalette(byte *ctab, int first, int num) {
PALETTEENTRY pal[256];
for (int i=0; i < num; i++,ctab+=3) {
pal[i].peFlags = 0;
pal[i].peRed = ctab[0];
pal[i].peGreen = ctab[1];
pal[i].peBlue = ctab[2];
}
DrawDibChangePalette(hdb, 0, 16, pal);
GetLastError();
}
#endif
HWND globWnd;
void WndMan::init() {
/* Retrieve the handle of this module */
hInst = GetModuleHandle(NULL);
/* Register the window class */
WNDCLASSEX wcex;
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.style = CS_HREDRAW | CS_VREDRAW;
wcex.lpfnWndProc = (WNDPROC)WndProc;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = hInst;
wcex.hIcon = 0;
wcex.hCursor = ::LoadCursor(NULL, IDC_ARROW);
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wcex.lpszMenuName = 0;
wcex.lpszClassName = "ScummVM";
wcex.hIconSm = 0;
if (!RegisterClassEx(&wcex))
Error("Cannot register window class!");
#if USE_DIRECTX
hWnd = CreateWindow("ScummVM", "ScummVM", 0,
CW_USEDEFAULT, CW_USEDEFAULT, SRC_WIDTH, SRC_HEIGHT, NULL, NULL, hInst, NULL);
SetWindowLong(hWnd, GWL_USERDATA, (long)this);
SetWindowLong(hWnd, GWL_STYLE, 0);
ShowCursor(false);
InitDirectX();
ShowWindow(hWnd, SW_SHOW);
#endif
#if USE_GDI
globWnd = hWnd = CreateWindow("ScummVM", "ScummVM", WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT, DEST_WIDTH+10, DEST_HEIGHT+30, NULL, NULL, hInst, NULL);
SetWindowLong(hWnd, GWL_USERDATA, (long)this);
// ShowCursor(false);
dib.pal = (RGBQUAD*)calloc(sizeof(RGBQUAD),256);
dib.new_pal = false;
if (!allocateDIB(DEST_WIDTH, DEST_HEIGHT))
Error("allocateDIB failed!");
#if 0
biHeader = (BITMAPINFO*)LocalAlloc(LMEM_FIXED, sizeof(BITMAPINFOHEADER) + 1024 );
memset(biHeader, 0, sizeof(BITMAPINFOHEADER) + 1024);
biHeader->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
biHeader->bmiHeader.biWidth = DEST_WIDTH;
biHeader->bmiHeader.biHeight = -DEST_HEIGHT; /* top down */
biHeader->bmiHeader.biPlanes = 1;
biHeader->bmiHeader.biBitCount = 8; /* 256 colors */
biHeader->bmiHeader.biCompression = BI_RGB; /* uncompressed */
#endif
ShowWindow(hWnd, SW_SHOW);
#endif
#if USE_DRAWDIB
hdb = DrawDibOpen();
hWnd = CreateWindow("ScummVM", "ScummVM", WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT, DEST_WIDTH+10, DEST_HEIGHT+30, NULL, NULL, hInst, NULL);
SetWindowLong(hWnd, GWL_USERDATA, (long)this);
ShowCursor(false);
biHeader = (BITMAPINFOHEADER*)LocalAlloc(LMEM_FIXED, sizeof(BITMAPINFOHEADER));
memset(biHeader, 0, sizeof(BITMAPINFOHEADER));
biHeader->biSize = sizeof(BITMAPINFOHEADER);
biHeader->biWidth = SRC_PITCH;
biHeader->biHeight = SRC_HEIGHT; /* top down */
biHeader->biPlanes = 1;
biHeader->biBitCount = 8; /* 256 colors */
biHeader->biCompression = BI_RGB; /* uncompressed */
ShowWindow(hWnd, SW_SHOW);
// int k = DrawDibProfileDisplay(biHeader);
// printf("%d\n", k&PD_CAN_STRETCHDIB);
#endif
}
bool WndMan::handleMessage() {
MSG msg;
if (!PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
return false;
if (msg.message==WM_QUIT) {
terminated=true;
exit(1);
return true;
}
TranslateMessage(&msg);
DispatchMessage(&msg);
return true;
}
unsigned long rdtsc_timer;
void _declspec(naked) beginpentiumtest() {
_asm {
rdtsc
mov rdtsc_timer,eax
ret
}
}
int _declspec(naked) endpentiumtest() {
_asm {
rdtsc
sub eax,rdtsc_timer
ret
}
}
#ifdef _DEBUG
void decompressMask(byte *d, byte *s) {
int x,y;
byte bits = 0x80, bdata = *s++;
for (y=0; y<144; y++)
for (x=0; x<320; x++) {
*d++ = (bdata & bits) ? 128 : 0;
bits>>=1;
if (!bits) {
bdata = *s++;
bits=0x80;
}
}
}
void outputdisplay2(Scumm *s, int disp) {
byte *old = wm->_vgabuf;
switch(disp) {
case 0:
wm->_vgabuf = s->getResourceAddress(0xA, 5);
break;
case 1:
wm->_vgabuf = s->getResourceAddress(0xA, 1);
break;
case 2:
wm->_vgabuf = NULL;
decompressMask(wm->dib.buf, s->getResourceAddress(0xA, 9)+s->_screenStartStrip);
break;
case 3:
wm->_vgabuf = NULL;
decompressMask(wm->dib.buf, s->getResourceAddress(0xA, 9)+5920+s->_screenStartStrip);
break;
case 4:
wm->_vgabuf = NULL;
decompressMask(wm->dib.buf, s->getResourceAddress(0xA, 9)+5920*2+s->_screenStartStrip);
break;
case 5:
wm->_vgabuf = NULL;
decompressMask(wm->dib.buf, s->getResourceAddress(0xA, 9)+5920*3+s->_screenStartStrip);
break;
}
wm->writeToScreen();
wm->_vgabuf = old;
}
#endif
#if 0
void outputdisplay(Scumm *s) {
s->drawMouse();
wm->writeToScreen();
}
#endif
void blitToScreen(Scumm *s, byte *src,int x, int y, int w, int h) {
byte *dst;
SDL_Rect *r;
int i;
dst = (byte*)wm->_vgabuf + y*320 + x;
do {
memcpy(dst, src, w);
dst += 320;
src += 320;
} while (--h);
}
void updateScreen(Scumm *s) {
if (s->_palDirtyMax != -1) {
wm->setPalette(s->_currentPalette, 0, 256);
s->_palDirtyMax = -1;
}
wm->writeToScreen();
}
void waitForTimer(Scumm *s) {
Sleep(10);
s->_scummTimer+=2;
wm->handleMessage();
}
#undef main
int main(int argc, char* argv[]) {
scumm._videoMode = 0x13;
wm->init();
wm->_vgabuf = (byte*)calloc(320,200);
wm->_scumm = &scumm;
scumm.scummMain();
return 0;
}