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scummvm/scumm/script_v6he.cpp
Travis Howell 7989a98952 Add FBEAR: Partial fix for the piano, patch #977249 
svn-id: r13999
2004-06-22 10:39:46 +00:00

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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
* Copyright (C) 2001-2004 The ScummVM project
*
* 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.
*
* $Header$
*
*/
#include "stdafx.h"
#include "common/config-manager.h"
#include "scumm/actor.h"
#include "scumm/charset.h"
#include "scumm/intern.h"
#include "scumm/object.h"
#include "scumm/resource.h"
#include "scumm/scumm.h"
#include "scumm/sound.h"
#include "scumm/verbs.h"
#include "scumm/smush/smush_player.h"
#include "sound/mididrv.h"
#include "sound/mixer.h"
namespace Scumm {
// Compatibility notes:
//
// FBEAR (fbear, fbeardemo)
// transparency in akos.cpp
// negative size in file read/write
#define OPCODE(x) { &ScummEngine_v6he::x, #x }
void ScummEngine_v6he::setupOpcodes() {
static const OpcodeEntryV6he opcodes[256] = {
/* 00 */
OPCODE(o6_pushByte),
OPCODE(o6_pushWord),
OPCODE(o6_pushByteVar),
OPCODE(o6_pushWordVar),
/* 04 */
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_byteArrayRead),
OPCODE(o6_wordArrayRead),
/* 08 */
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_byteArrayIndexedRead),
OPCODE(o6_wordArrayIndexedRead),
/* 0C */
OPCODE(o6_dup),
OPCODE(o6_not),
OPCODE(o6_eq),
OPCODE(o6_neq),
/* 10 */
OPCODE(o6_gt),
OPCODE(o6_lt),
OPCODE(o6_le),
OPCODE(o6_ge),
/* 14 */
OPCODE(o6_add),
OPCODE(o6_sub),
OPCODE(o6_mul),
OPCODE(o6_div),
/* 18 */
OPCODE(o6_land),
OPCODE(o6_lor),
OPCODE(o6_pop),
OPCODE(o6_invalid),
/* 1C */
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
/* 20 */
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
/* 24 */
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
/* 28 */
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
/* 2C */
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
/* 30 */
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
/* 34 */
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
/* 38 */
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
/* 3C */
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
/* 40 */
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_writeByteVar),
OPCODE(o6_writeWordVar),
/* 44 */
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_byteArrayWrite),
OPCODE(o6_wordArrayWrite),
/* 48 */
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_byteArrayIndexedWrite),
OPCODE(o6_wordArrayIndexedWrite),
/* 4C */
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_byteVarInc),
OPCODE(o6_wordVarInc),
/* 50 */
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_byteArrayInc),
OPCODE(o6_wordArrayInc),
/* 54 */
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_byteVarDec),
OPCODE(o6_wordVarDec),
/* 58 */
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_byteArrayDec),
OPCODE(o6_wordArrayDec),
/* 5C */
OPCODE(o6_if),
OPCODE(o6_ifNot),
OPCODE(o6_startScript),
OPCODE(o6_startScriptQuick),
/* 60 */
OPCODE(o6_startObject),
OPCODE(o6_drawObject),
OPCODE(o6_drawObjectAt),
OPCODE(o6_drawBlastObject),
/* 64 */
OPCODE(o6_setBlastObjectWindow),
OPCODE(o6_stopObjectCode),
OPCODE(o6_stopObjectCode),
OPCODE(o6_endCutscene),
/* 68 */
OPCODE(o6_cutscene),
OPCODE(o6_stopMusic),
OPCODE(o6_freezeUnfreeze),
OPCODE(o6_cursorCommand),
/* 6C */
OPCODE(o6_breakHere),
OPCODE(o6_ifClassOfIs),
OPCODE(o6_setClass),
OPCODE(o6_getState),
/* 70 */
OPCODE(o6_setState),
OPCODE(o6_setOwner),
OPCODE(o6_getOwner),
OPCODE(o6_jump),
/* 74 */
OPCODE(o6_startSound),
OPCODE(o6_stopSound),
OPCODE(o6_startMusic),
OPCODE(o6_stopObjectScript),
/* 78 */
OPCODE(o6_panCameraTo),
OPCODE(o6_actorFollowCamera),
OPCODE(o6_setCameraAt),
OPCODE(o6_loadRoom),
/* 7C */
OPCODE(o6_stopScript),
OPCODE(o6_walkActorToObj),
OPCODE(o6_walkActorTo),
OPCODE(o6_putActorAtXY),
/* 80 */
OPCODE(o6_putActorAtObject),
OPCODE(o6_faceActor),
OPCODE(o6_animateActor),
OPCODE(o6_doSentence),
/* 84 */
OPCODE(o6_pickupObject),
OPCODE(o6_loadRoomWithEgo),
OPCODE(o6_invalid),
OPCODE(o6_getRandomNumber),
/* 88 */
OPCODE(o6_getRandomNumberRange),
OPCODE(o6_invalid),
OPCODE(o6_getActorMoving),
OPCODE(o6_isScriptRunning),
/* 8C */
OPCODE(o6_getActorRoom),
OPCODE(o6_getObjectX),
OPCODE(o6_getObjectY),
OPCODE(o6_getObjectOldDir),
/* 90 */
OPCODE(o6_getActorWalkBox),
OPCODE(o6_getActorCostume),
OPCODE(o6_findInventory),
OPCODE(o6_getInventoryCount),
/* 94 */
OPCODE(o6_getVerbFromXY),
OPCODE(o6_beginOverride),
OPCODE(o6_endOverride),
OPCODE(o6_setObjectName),
/* 98 */
OPCODE(o6_isSoundRunning),
OPCODE(o6_setBoxFlags),
OPCODE(o6_createBoxMatrix),
OPCODE(o6_resourceRoutines),
/* 9C */
OPCODE(o6_roomOps),
OPCODE(o6_actorOps),
OPCODE(o6_verbOps),
OPCODE(o6_getActorFromXY),
/* A0 */
OPCODE(o6_findObject),
OPCODE(o6_pseudoRoom),
OPCODE(o6_getActorElevation),
OPCODE(o6_getVerbEntrypoint),
/* A4 */
OPCODE(o6_arrayOps),
OPCODE(o6_saveRestoreVerbs),
OPCODE(o6_drawBox),
OPCODE(o6_pop),
/* A8 */
OPCODE(o6_getActorWidth),
OPCODE(o6_wait),
OPCODE(o6_getActorScaleX),
OPCODE(o6_getActorAnimCounter1),
/* AC */
OPCODE(o6_soundKludge),
OPCODE(o6_isAnyOf),
OPCODE(o6_quitPauseRestart),
OPCODE(o6_isActorInBox),
/* B0 */
OPCODE(o6_delay),
OPCODE(o6_delaySeconds),
OPCODE(o6_delayMinutes),
OPCODE(o6_stopSentence),
/* B4 */
OPCODE(o6_printLine),
OPCODE(o6_printCursor),
OPCODE(o6_printDebug),
OPCODE(o6_printSystem),
/* B8 */
OPCODE(o6_printActor),
OPCODE(o6_printEgo),
OPCODE(o6_talkActor),
OPCODE(o6_talkEgo),
/* BC */
OPCODE(o6_dimArray),
OPCODE(o6_dummy),
OPCODE(o6_startObjectQuick),
OPCODE(o6_startScriptQuick2),
/* C0 */
OPCODE(o6_dim2dimArray),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
/* C4 */
OPCODE(o6_abs),
OPCODE(o6_distObjectObject),
OPCODE(o6_distObjectPt),
OPCODE(o6_distPtPt),
/* C8 */
OPCODE(o6_kernelGetFunctions),
OPCODE(o6_kernelSetFunctions),
OPCODE(o6_delayFrames),
OPCODE(o6_pickOneOf),
/* CC */
OPCODE(o6_pickOneOfDefault),
OPCODE(o6_stampObject),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
/* D0 */
OPCODE(o6_getDateTime),
OPCODE(o6_stopTalking),
OPCODE(o6_getAnimateVariable),
OPCODE(o6_invalid),
/* D4 */
OPCODE(o6_shuffle),
OPCODE(o6_jumpToScript),
OPCODE(o6_band),
OPCODE(o6_bor),
/* D8 */
OPCODE(o6_isRoomScriptRunning),
OPCODE(o6_closeFile),
OPCODE(o6_openFile),
OPCODE(o6_readFile),
/* DC */
OPCODE(o6_writeFile),
OPCODE(o6_findAllObjects),
OPCODE(o6_deleteFile),
OPCODE(o6_rename),
/* E0 */
OPCODE(o6_soundOps),
OPCODE(o6_unknownE1),
OPCODE(o6_localizeArray),
OPCODE(o6_pickVarRandom),
/* E4 */
OPCODE(o6_setBoxSet),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
/* E8 */
OPCODE(o6_invalid),
OPCODE(o6_seekFilePos),
OPCODE(o6_redimArray),
OPCODE(o6_readFilePos),
/* EC */
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
/* F0 */
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
/* F4 */
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
/* F8 */
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
/* FC */
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
OPCODE(o6_invalid),
};
_opcodesV6he = opcodes;
}
void ScummEngine_v6he::executeOpcode(byte i) {
OpcodeProcV6he op = _opcodesV6he[i].proc;
(this->*op) ();
}
const char *ScummEngine_v6he::getOpcodeDesc(byte i) {
return _opcodesV6he[i].desc;
}
void ScummEngine_v6he::o6_setState() {
int state = pop();
int obj = pop();
if (state & 0x8000) {
state = state & 0x7F00;
putState(obj, state);
return;
}
putState(obj, state);
markObjectRectAsDirty(obj);
if (_BgNeedsRedraw)
clearDrawObjectQueue();
}
void ScummEngine_v6he::o6_startSound() {
// Seems to range between 952 - 9000
// In Fatty Bear's Birthday Surprise the piano uses offsets 1 - 23 to
// indicate which note to play, but only when using the standard piano
// sound. See also o6_soundOps().
int offset = pop();
debug(2, "o6_startSound: offset %d", offset);
_sound->addSoundToQueue(pop());
}
void ScummEngine_v6he::o6_roomOps() {
int a, b, c, d, e;
byte op;
op = fetchScriptByte();
switch (op) {
case 172: // SO_ROOM_SCROLL
b = pop();
a = pop();
if (a < (_screenWidth / 2))
a = (_screenWidth / 2);
if (b < (_screenWidth / 2))
b = (_screenWidth / 2);
if (a > _roomWidth - (_screenWidth / 2))
a = _roomWidth - (_screenWidth / 2);
if (b > _roomWidth - (_screenWidth / 2))
b = _roomWidth - (_screenWidth / 2);
VAR(VAR_CAMERA_MIN_X) = a;
VAR(VAR_CAMERA_MAX_X) = b;
break;
case 174: // SO_ROOM_SCREEN
b = pop();
a = pop();
initScreens(a, b);
break;
case 175: // SO_ROOM_PALETTE
d = pop();
c = pop();
b = pop();
a = pop();
setPalColor(d, a, b, c);
break;
case 176: // SO_ROOM_SHAKE_ON
setShake(1);
break;
case 177: // SO_ROOM_SHAKE_OFF
setShake(0);
break;
case 179: // SO_ROOM_INTENSITY
c = pop();
b = pop();
a = pop();
darkenPalette(a, a, a, b, c);
break;
case 180: // SO_ROOM_SAVEGAME
_saveTemporaryState = true;
_saveLoadSlot = pop();
_saveLoadFlag = pop();
break;
case 181: // SO_ROOM_FADE
a = pop();
if (a) {
_switchRoomEffect = (byte)(a & 0xFF);
_switchRoomEffect2 = (byte)(a >> 8);
} else {
fadeIn(_newEffect);
}
break;
case 182: // SO_RGB_ROOM_INTENSITY
e = pop();
d = pop();
c = pop();
b = pop();
a = pop();
darkenPalette(a, b, c, d, e);
break;
case 183: // SO_ROOM_SHADOW
e = pop();
d = pop();
c = pop();
b = pop();
a = pop();
setupShadowPalette(a, b, c, d, e);
break;
case 184: // SO_SAVE_STRING
error("save string not implemented");
break;
case 185: // SO_LOAD_STRING
error("load string not implemented");
break;
case 186: // SO_ROOM_TRANSFORM
d = pop();
c = pop();
b = pop();
a = pop();
palManipulateInit(a, b, c, d);
break;
case 187: // SO_CYCLE_SPEED
b = pop();
a = pop();
checkRange(16, 1, a, "o6_roomOps: 187: color cycle out of range (%d)");
_colorCycle[a - 1].delay = (b != 0) ? 0x4000 / (b * 0x4C) : 0;
break;
case 213: // SO_ROOM_NEW_PALETTE
a = pop();
setPalette(a);
break;
case 220:
a = pop();
b = pop();
warning("o6_roomops:220 (%d, %d): unimplemented", a, b);
break;
case 221:
int len;
len = resStrLen(_scriptPointer);
_scriptPointer += len + 1;
_saveLoadFlag = pop();
_saveLoadSlot = 1;
_saveTemporaryState = true;
break;
default:
error("o6_roomOps: default case %d", op);
}
}
void ScummEngine_v6he::o6_actorOps() {
Actor *a;
int i, j, k;
int args[8];
byte b;
b = fetchScriptByte();
if (b == 197) {
_curActor = pop();
return;
}
a = derefActorSafe(_curActor, "o6_actorOps");
if (!a)
return;
switch (b) {
case 30:
// _heversion >= 70
k = pop();
j = pop();
i = pop();
warning("o6_actorOps: stub case %d", b);
break;
case 76: // SO_COSTUME
a->setActorCostume(pop());
break;
case 77: // SO_STEP_DIST
j = pop();
i = pop();
a->setActorWalkSpeed(i, j);
break;
case 78: // SO_SOUND
k = getStackList(args, ARRAYSIZE(args));
for (i = 0; i < k; i++)
a->sound[i] = args[i];
break;
case 79: // SO_WALK_ANIMATION
a->walkFrame = pop();
break;
case 80: // SO_TALK_ANIMATION
a->talkStopFrame = pop();
a->talkStartFrame = pop();
break;
case 81: // SO_STAND_ANIMATION
a->standFrame = pop();
break;
case 82: // SO_ANIMATION
// dummy case in scumm6
pop();
pop();
pop();
break;
case 83: // SO_DEFAULT
a->initActor(0);
break;
case 84: // SO_ELEVATION
a->setElevation(pop());
break;
case 85: // SO_ANIMATION_DEFAULT
a->initFrame = 1;
a->walkFrame = 2;
a->standFrame = 3;
a->talkStartFrame = 4;
a->talkStopFrame = 5;
break;
case 86: // SO_PALETTE
j = pop();
i = pop();
checkRange(255, 0, i, "Illegal palette slot %d");
a->remapActorPaletteColor(i, j);
break;
case 87: // SO_TALK_COLOR
a->talkColor = pop();
break;
case 88: // SO_ACTOR_NAME
loadPtrToResource(rtActorName, a->number, NULL);
break;
case 89: // SO_INIT_ANIMATION
a->initFrame = pop();
break;
case 91: // SO_ACTOR_WIDTH
a->width = pop();
break;
case 92: // SO_SCALE
i = pop();
a->setScale(i, i);
break;
case 93: // SO_NEVER_ZCLIP
a->forceClip = 0;
break;
case 94: // SO_ALWAYS_ZCLIP
a->forceClip = pop();
break;
case 95: // SO_IGNORE_BOXES
a->ignoreBoxes = 1;
a->forceClip = 0;
if (a->isInCurrentRoom())
a->putActor(a->_pos.x, a->_pos.y, a->room);
break;
case 96: // SO_FOLLOW_BOXES
a->ignoreBoxes = 0;
a->forceClip = 0;
if (a->isInCurrentRoom())
a->putActor(a->_pos.x, a->_pos.y, a->room);
break;
case 97: // SO_ANIMATION_SPEED
a->setAnimSpeed(pop());
break;
case 98: // SO_SHADOW
a->shadow_mode = pop();
break;
case 99: // SO_TEXT_OFFSET
a->talkPosY = pop();
a->talkPosX = pop();
break;
case 198: // SO_ACTOR_VARIABLE
i = pop();
a->setAnimVar(pop(), i);
break;
case 215: // SO_ACTOR_IGNORE_TURNS_ON
a->ignoreTurns = true;
break;
case 216: // SO_ACTOR_IGNORE_TURNS_OFF
a->ignoreTurns = false;
break;
case 217: // SO_ACTOR_NEW
a->initActor(2);
break;
case 218:
{
// TODO: this opcode is used in the putt-putt fun pack, in 'checkers" mini game
// and in fbear at original save screen
int top_actor = a->top;
int bottom_actor = a->bottom;
a->forceClip = 1;
a->needRedraw = true;
a->drawActorCostume();
a->forceClip = 0;
a->needRedraw = true;
a->drawActorCostume();
a->needRedraw = false;
if (a->top > top_actor)
a->top = top_actor;
if (a->bottom < bottom_actor)
a->bottom = bottom_actor;
//FIXME Trigger redraw
a->bottom = top_actor;
}
break;
case 219:
a->forceClip = false;
a->needRedraw = true;
a->needBgReset = true;
break;
case 225: // SO_ALWAYS_ZCLIP
i = pop(); // talkie slot
warning("o6_actorOps: stub case %d", b);
break;
default:
error("o6_actorOps: default case %d", b);
}
}
void ScummEngine_v6he::o6_wait() {
int actnum;
int offs = -2;
Actor *a;
byte subOp = fetchScriptByte();
switch (subOp) {
case 168: // SO_WAIT_FOR_ACTOR Wait for actor
offs = fetchScriptWordSigned();
actnum = pop();
a = derefActor(actnum, "o6_wait:168");
if (a->moving)
break;
return;
case 169: // SO_WAIT_FOR_MESSAGE Wait for message
if (VAR(VAR_HAVE_MSG))
break;
return;
case 170: // SO_WAIT_FOR_CAMERA Wait for camera
if (camera._cur.x / 8 != camera._dest.x / 8)
break;
return;
case 171: // SO_WAIT_FOR_SENTENCE
if (_sentenceNum) {
if (_sentence[_sentenceNum - 1].freezeCount && !isScriptInUse(VAR(VAR_SENTENCE_SCRIPT)))
return;
break;
}
if (!isScriptInUse(VAR(VAR_SENTENCE_SCRIPT)))
return;
break;
default:
error("o6_wait: default case 0x%x", subOp);
}
_scriptPointer += offs;
o6_breakHere();
}
void ScummEngine_v6he::o6_soundKludge() {
int list[16];
getStackList(list, ARRAYSIZE(list));
}
void ScummEngine_v6he::o6_dummy() {
stopObjectCode();
}
void ScummEngine_v6he::o6_drawBlastObject() {
int args[16];
getStackList(args, ARRAYSIZE(args));
pop();
pop();
pop();
pop();
pop();
}
void ScummEngine_v6he::o6_setBlastObjectWindow() {
pop();
pop();
pop();
pop();
}
void ScummEngine_v6he::o6_kernelSetFunctions() {
int args[29];
int num;
num = getStackList(args, ARRAYSIZE(args));
switch (args[0]) {
case 1:
// Used to restore images when decorating cake in
// Fatty Bear's Birthday Surprise
virtScreenLoad(args[1], args[2], args[3], args[4], args[5]);
break;
case 3:
case 4:
case 5:
//Used before mini games in 3DO versions, seems safe to ignore.
break;
default:
error("o6_kernelSetFunctions: default case %d (param count %d)", args[0], num);
break;
}
}
void ScummEngine_v6he::virtScreenLoad(int resIdx, int x1, int y1, int x2, int y2) {
debug(1, "ScummEngine_v6he::virtScreenLoad(%d, %d, %d, %d, %d)", resIdx, x1, y1, x2, y2);
vsUnpackCtx ctx;
memset(&ctx, 0, sizeof(ctx));
int vs = 0; // XXX gdi_virtScreen = 0;
ArrayHeader *ah = (ArrayHeader *)getResourceAddress(rtString, resIdx);
virtScreenLoadUnpack(&ctx, ah->data);
for (int j = y1; j <= y2; ++j) {
uint32 yoff = (j - virtscr[kMainVirtScreen].topline) * 320;
uint8 *p1 = getResourceAddress(rtBuffer, vs + 1);
p1 += yoff + virtscr[kMainVirtScreen].xstart + x1;
uint8 *p2 = getResourceAddress(rtBuffer, vs + 5);
p2 += yoff + virtscr[kMainVirtScreen].xstart + x1;
if (x2 >= x1) {
uint32 w = x2 - x1 + 1;
while (w--) {
uint8 decByte = virtScreenLoadUnpack(&ctx, 0);
*p1++ = decByte;
*p2++ = decByte;
}
}
}
markRectAsDirty(kMainVirtScreen, x1, x2, y1, y2 + 1); // XXX , 0x4000);
}
uint8 ScummEngine_v6he::virtScreenLoadUnpack(vsUnpackCtx *ctx, byte *data) {
uint8 decByte;
if (data != 0) {
ctx->type = 0;
ctx->ptr = data;
decByte = 0;
} else {
uint8 a;
if (ctx->type == 0) {
a = *(ctx->ptr)++;
if (a & 1) {
ctx->type = 1;
ctx->b = *(ctx->ptr)++;
} else {
ctx->type = 2;
}
ctx->size = a;
a = (a >> 1) + 1;
} else {
a = ctx->size;
}
if (ctx->type == 2) {
ctx->b = *(ctx->ptr)++;
}
ctx->size = a - 1;
if (ctx->size == 0) {
ctx->type = 0;
}
decByte = ctx->b;
}
return decByte;
}
void ScummEngine_v6he::o6_kernelGetFunctions() {
int args[29];
int retval;
ArrayHeader *ah;
getStackList(args, ARRAYSIZE(args));
switch (args[0]) {
case 1:
// Used to store images when decorating cake in
// Fatty Bear's Birthday Surprise
// XXX gdi_virtScreen = 0;
writeVar(0, 0);
defineArray(0, rtCostume, 0, virtScreenSave(0, args[1], args[2], args[3], args[4]));
retval = readVar(0);
ah = (ArrayHeader *)getResourceAddress(rtString, retval);
virtScreenSave(ah->data, args[1], args[2], args[3], args[4]);
push(retval);
break;
default:
error("o6_kernelGetFunctions: default case %d", args[0]);
}
}
int ScummEngine_v6he::virtScreenSave(byte *dst, int x1, int y1, int x2, int y2) {
debug(1, "ScummEngine_v6he::virtScreenSave(%d, %d, %d, %d)", x1, y1, x2, y2);
int packedSize = 0;
int vs = 0; // XXX = gdi_virtScreen;
for (int j = y1; j <= y2; ++j) {
// FIXME - to match the disassembly, we should save buffer (vs + 5),
// but if we do that, then the cake decoration in Fatty Bear's Birthday
// Surprise is not saved at all
uint8 *p = getResourceAddress(rtBuffer, vs + 1);
p += virtscr[kMainVirtScreen].xstart;
p += (j - virtscr[kMainVirtScreen].topline) * 320 + x1;
int size = virtScreenSavePack(dst, p, x2 - x1 + 1, 0);
if (dst != 0) {
dst += size;
}
packedSize += size;
}
return packedSize;
}
int ScummEngine_v6he::virtScreenSavePack(byte *dst, byte *src, int len, int unk) {
vsPackCtx ctx;
memset(&ctx, 0, sizeof(ctx));
uint8 prevByte, curByte;
ctx.buf[0] = prevByte = *src++;
int flag = 0;
int iend = 1;
int ibeg = 0;
for (--len; len != 0; --len, prevByte = curByte) {
bool pass = false;
assert(iend < 0x100);
ctx.buf[iend] = curByte = *src++;
++iend;
if (flag == 0) {
if (iend > 0x80) {
virtScreenSavePackBuf(&ctx, dst, iend - 1);
ctx.buf[0] = curByte;
iend = 1;
ibeg = 0;
continue;
}
if (prevByte != curByte) {
ibeg = iend - 1;
continue;
}
if (iend - ibeg < 3) {
if (ibeg != 0) {
pass = true;
} else {
flag = 1;
}
} else {
if (ibeg > 0) {
virtScreenSavePackBuf(&ctx, dst, ibeg);
}
flag = 1;
}
}
if (flag == 1 || pass) {
if (prevByte != curByte || iend - ibeg > 0x80) {
virtScreenSavePackByte(&ctx, dst, iend - ibeg - 1, prevByte);
ctx.buf[0] = curByte;
iend = 1;
ibeg = 0;
flag = 0;
}
}
}
if (flag == 0) {
virtScreenSavePackBuf(&ctx, dst, iend);
} else if (flag == 1) {
virtScreenSavePackByte(&ctx, dst, iend - ibeg, prevByte);
}
return ctx.size;
}
void ScummEngine_v6he::virtScreenSavePackBuf(vsPackCtx *ctx, uint8 *&dst, int len) {
if (dst) {
*dst++ = (len - 1) * 2;
}
++ctx->size;
if (len > 0) {
ctx->size += len;
if (dst) {
memcpy(dst, ctx->buf, len);
dst += len;
}
}
}
void ScummEngine_v6he::virtScreenSavePackByte(vsPackCtx *ctx, uint8 *&dst, int len, uint8 b) {
if (dst) {
*dst++ = ((len - 1) * 2) | 1;
}
++ctx->size;
if (dst) {
*dst++ = b;
}
++ctx->size;
}
void ScummEngine_v6he::o6_openFile() {
int mode, len, slot, l, r;
byte filename[100];
addMessageToStack(_scriptPointer, filename, sizeof(filename));
len = resStrLen(_scriptPointer);
_scriptPointer += len + 1;
for (r = strlen((char*)filename); r != 0; r--) {
if (filename[r - 1] == '\\')
break;
}
mode = pop();
slot = -1;
for (l = 0; l < 17; l++) {
if (_hFileTable[l].isOpen() == false) {
slot = l;
break;
}
}
if (slot != -1) {
if (mode == 1)
_hFileTable[slot].open((char*)filename + r, getGameDataPath(), File::kFileReadMode);
else if (mode == 2)
_hFileTable[slot].open((char*)filename + r, getGameDataPath(), File::kFileWriteMode);
else
error("o6_openFile(): wrong open file mode");
if (_hFileTable[slot].isOpen() == false)
slot = -1;
debug(1, "%d = o6_openFile(\"%s\", %d)", slot, filename + r, mode);
}
push(slot);
}
void ScummEngine_v6he::o6_closeFile() {
int slot = pop();
debug(1, "o6_closeFile(%d)", slot);
if (slot != -1)
_hFileTable[slot].close();
}
void ScummEngine_v6he::o6_deleteFile() {
int len, r;
byte filename[100];
addMessageToStack(_scriptPointer, filename, sizeof(filename));
len = resStrLen(_scriptPointer);
_scriptPointer += len + 1;
for (r = strlen((char*)filename); r != 0; r--) {
if (filename[r - 1] == '\\')
break;
}
debug(1, "stub o6_deleteFile(\"%s\")", filename + r);
}
void ScummEngine_v6he::o6_rename() {
int len, r1, r2;
byte filename[100],filename2[100];
addMessageToStack(_scriptPointer, filename, sizeof(filename));
len = resStrLen(_scriptPointer);
_scriptPointer += len + 1;
for (r1 = strlen((char*)filename); r1 != 0; r1--) {
if (filename[r1 - 1] == '\\')
break;
}
addMessageToStack(_scriptPointer, filename2, sizeof(filename2));
len = resStrLen(_scriptPointer);
_scriptPointer += len + 1;
for (r2 = strlen((char*)filename2); r2 != 0; r2--) {
if (filename2[r2 - 1] == '\\')
break;
}
debug(1, "stub o6_rename(\"%s\" to \"%s\")", filename + r1, filename2 + r2);
}
int ScummEngine_v6he::readFileToArray(int slot, int32 size) {
if (size == 0)
size = _hFileTable[slot].size() - _hFileTable[slot].pos();
writeVar(0, 0);
// define size as size-1 because in defineArray it gets incremented
ArrayHeader *ah = defineArray(0, rtCostume, 0, size-1);
_hFileTable[slot].read(ah->data, size);
return readVar(0);
}
void ScummEngine_v6he::o6_readFile() {
int32 size = pop();
int slot = pop();
int val;
debug(1, "o6_readFile(%d, %d)", slot, size);
// Fatty Bear uses positive values
if (_gameId == GID_FBEAR)
size = -size;
if (size == -2) {
val = _hFileTable[slot].readUint16LE();
push(val);
} else if (size == -1) {
val = _hFileTable[slot].readByte();
push(val);
} else {
val = readFileToArray(slot, size);
push(val);
}
}
void ScummEngine_v6he::writeFileFromArray(int slot, int resID) {
ArrayHeader *ah = (ArrayHeader *)getResourceAddress(rtString, resID);
int32 size = FROM_LE_16(ah->dim1) * FROM_LE_16(ah->dim2);
_hFileTable[slot].write(ah->data, size);
}
void ScummEngine_v6he::o6_writeFile() {
int32 size = pop();
int16 resID = pop();
int slot = pop();
debug(1, "o6_writeFile(%d, %d, %d)", slot, resID, size);
// Fatty Bear uses positive values
if (_gameId == GID_FBEAR)
size = -size;
if (size == -2) {
_hFileTable[slot].writeUint16LE(resID);
} else if (size == -1) {
_hFileTable[slot].writeByte(resID);
} else {
writeFileFromArray(slot, resID);
}
}
void ScummEngine_v6he::o6_soundOps() {
byte subOp = fetchScriptByte();
int volume = pop();
switch (subOp) {
case 0xde:
_mixer->setMusicVolume(volume);
break;
case 0xe0:
// Fatty Bear's Birthday surprise uses this when playing the
// piano, but only when using one of the digitized instruments.
// See also o6_startSound().
_sound->setOverrideFreq(volume);
break;
}
}
void ScummEngine_v6he::o6_localizeArray() {
int stringID = pop();
if (stringID < _numArray) {
_baseArrays[stringID][0] = (byte)_currentScript;
} else {
warning("o6_localizeArray(%d): too big scriptID", stringID);
}
}
void ScummEngine_v6he::o6_seekFilePos() {
int mode, offset, slot;
mode = pop();
offset = pop();
slot = pop();
debug(1, "o6_seekFile(%d, %d, %d)", slot, offset, mode);
switch (mode) {
case 1:
seekFilePos(slot, offset, 0);
break;
case 2:
seekFilePos(slot, offset, 1);
break;
case 3:
seekFilePos(slot, offset, 2);
break;
default:
break;
}
}
void ScummEngine_v6he::seekFilePos(int slot, int offset, int mode) {
if (slot == 1)
return;
switch (mode) {
case 0:
_hFileTable[slot].seek(offset, SEEK_SET);
break;
case 1:
_hFileTable[slot].seek(offset, SEEK_CUR);
break;
case 2:
_hFileTable[slot].seek(offset, SEEK_END);
break;
}
}
void ScummEngine_v6he::o6_readFilePos() {
int slot = pop();
debug(1, "o6_tellFile(%d)", slot);
if (slot == -1) {
push(0);
return;
}
push(_hFileTable[slot].pos());
}
void ScummEngine_v6he::o6_redimArray() {
int subcode, newX, newY;
newY = pop();
newX = pop();
if (newY == 0)
SWAP(newX, newY);
subcode = fetchScriptByte();
switch (subcode) {
case 199:
redimArray(fetchScriptWord(), newX, newY, rtInventory);
break;
case 202:
redimArray(fetchScriptWord(), newX, newY, rtCostume);
break;
default:
break;
}
}
void ScummEngine_v6he::redimArray(int arrayId, int newX, int newY, int type) {
// Used in mini game at Cosmic Dust Diner in puttmoon
int var_2, var_4, ax, cx;
if (readVar(arrayId) == 0)
error("redimArray: Reference to zeroed array pointer");
ArrayHeader *ah = (ArrayHeader *)getResourceAddress(rtString, readVar(arrayId));
if (!ah)
error("redimArray: Invalid array (%d) reference", readVar(arrayId));
if (type == rtInventory)
var_2 = 2;
else // rtCostume
var_2 = 1;
if (FROM_LE_16(ah->type) == rtInventory)
var_4 = 2;
else
var_4 = 1;
cx = var_2 * (newX + 1) * (newY + 1);
ax = var_4 * FROM_LE_16(ah->dim1) * FROM_LE_16(ah->dim2);
if (ax != cx)
error("redimArray: array %d redim mismatch", readVar(arrayId));
ah->type = TO_LE_16(type);
ah->dim1 = TO_LE_16(newY + 1);
ah->dim2 = TO_LE_16(newX + 1);
}
void ScummEngine_v6he::decodeParseString(int m, int n) {
byte b;
int c;
b = fetchScriptByte();
switch (b) {
case 65: // SO_AT
_string[m].ypos = pop();
_string[m].xpos = pop();
_string[m].overhead = false;
break;
case 66: // SO_COLOR
_string[m].color = pop();
break;
case 67: // SO_CLIPPED
_string[m].right = pop();
break;
case 69: // SO_CENTER
_string[m].center = true;
_string[m].overhead = false;
break;
case 71: // SO_LEFT
_string[m].center = false;
_string[m].overhead = false;
break;
case 72: // SO_OVERHEAD
_string[m].overhead = true;
_string[m].no_talk_anim = false;
break;
case 73: // SO_SAY_VOICE
error("decodeParseString: case 73");
break;
case 74: // SO_MUMBLE
_string[m].no_talk_anim = true;
break;
case 75: // SO_TEXTSTRING
switch (m) {
case 0:
actorTalk(_scriptPointer);
break;
case 1:
drawString(1, _scriptPointer);
break;
case 2:
unkMessage1(_scriptPointer);
break;
case 3:
unkMessage2(_scriptPointer);
break;
}
_scriptPointer += resStrLen(_scriptPointer) + 1;
break;
case 0xF9:
c = pop();
if (c == 1) {
_string[m].color = pop();
} else {
push(c);
int args[16];
getStackList(args, ARRAYSIZE(args));
}
warning("decodeParseString case 0xF9 stub");
break;
case 0xFE:
_string[m].loadDefault();
if (n)
_actorToPrintStrFor = pop();
break;
case 0xFF:
_string[m].saveDefault();
break;
default:
error("decodeParseString: default case 0x%x", b);
}
}
} // End of namespace Scumm
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