mirror of
https://github.com/libretro/scummvm.git
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352 lines
10 KiB
C++
352 lines
10 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#ifndef M4_WOODSCRIPT_H
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#define M4_WOODSCRIPT_H
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#include "common/scummsys.h"
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#include "common/util.h"
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#include "common/str.h"
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#include "common/array.h"
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#include "common/stream.h"
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#include "graphics/surface.h"
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#include "m4/globals.h"
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#include "m4/assets.h"
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#include "m4/resource.h"
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#include "m4/sprite.h"
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#include "m4/m4.h"
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#include "m4/graphics.h"
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#include "m4/viewmgr.h"
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namespace M4 {
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class M4Engine;
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class WoodScript;
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class Machine;
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class Sequence;
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class AssetManager;
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class View;
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struct Instruction {
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int32 instr;
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long *argp[3];
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long argv[3];
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int argc;
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// Helper method; many opcode functions can get either a defined value or a random value
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long getValue() {
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if (argc == 3)
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return _vm->imath_ranged_rand16(argv[1], argv[2]);
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else
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return argv[1];
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}
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};
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class Bytecode {
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public:
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Bytecode(WoodScript *ws, byte *code, int32 codeSize, Sequence *seq);
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~Bytecode();
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int loadInstruction(Instruction &instruction);
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void jumpAbsolute(int32 ofs);
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void jumpRelative(int32 ofs);
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void setSequence(Sequence *sequence);
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void setCode(byte *code, int32 codeSize);
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Sequence *sequence() const;
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uint32 pos() const { return _code->pos() / 4; }
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protected:
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WoodScript *_ws;
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Common::MemoryReadStream *_code;
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Sequence *_sequence;
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static int32 _dataFormats[];
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bool decodeArgument(int32 format, int32 data, long *&arg, long &value);
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};
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struct EndOfSequenceRequestItem {
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int32 codeOffset, count;
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EndOfSequenceRequestItem() : codeOffset(-1) {}
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bool isValid() const { return codeOffset >= 0; }
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};
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typedef Common::Array<EndOfSequenceRequestItem> EndOfSequenceRequestList;
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class Sequence {
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public:
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Sequence(WoodScript *ws, Machine *machine, int32 sequenceHash);
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~Sequence();
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void pause();
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void resume();
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void issueEndOfSequenceRequest(int32 codeOffset, int32 count);
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void cancelEndOfSequenceRequest();
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bool runProgram();
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bool changeProgram(int32 sequenceHash);
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void clearVars();
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long *getVarPtr(int index);
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long *getParentVarPtr(int index);
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long *getDataPtr(int index);
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void setActive(bool active) { _active = active; }
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bool isActive() const { return _active; }
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bool isTerminated() const { return _terminated; }
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void draw(M4Surface *surface, const Common::Rect &clipRect, Common::Rect &updateRect);
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bool s1_end(Instruction &instruction);
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bool s1_clearVars(Instruction &instruction);
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bool s1_set(Instruction &instruction);
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bool s1_compare(Instruction &instruction);
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bool s1_add(Instruction &instruction);
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bool s1_sub(Instruction &instruction);
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bool s1_mul(Instruction &instruction);
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bool s1_div(Instruction &instruction);
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bool s1_and(Instruction &instruction);
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bool s1_or(Instruction &instruction);
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bool s1_not(Instruction &instruction);
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bool s1_sin(Instruction &instruction);
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bool s1_cos(Instruction &instruction);
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bool s1_abs(Instruction &instruction);
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bool s1_min(Instruction &instruction);
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bool s1_max(Instruction &instruction);
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bool s1_mod(Instruction &instruction);
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bool s1_floor(Instruction &instruction);
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bool s1_round(Instruction &instruction);
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bool s1_ceil(Instruction &instruction);
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bool s1_point(Instruction &instruction);
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bool s1_dist2d(Instruction &instruction);
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bool s1_crunch(Instruction &instruction);
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bool s1_branch(Instruction &instruction);
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bool s1_setFrame(Instruction &instruction);
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bool s1_sendMessage(Instruction &instruction);
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bool s1_push(Instruction &instruction);
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bool s1_pop(Instruction &instruction);
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bool s1_jumpSub(Instruction &instruction);
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bool s1_return(Instruction &instruction);
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bool s1_getFrameCount(Instruction &instruction);
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bool s1_getFrameRate(Instruction &instruction);
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bool s1_getCelsPixSpeed(Instruction &instruction);
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bool s1_setIndex(Instruction &instruction);
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bool s1_setLayer(Instruction &instruction);
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bool s1_setDepth(Instruction &instruction);
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bool s1_setData(Instruction &instruction);
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bool s1_openStream(Instruction &instruction);
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bool s1_streamNextFrame(Instruction &instruction);
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bool s1_closeStream(Instruction &instruction);
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int32 indexReg() const { return _indexReg; }
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EndOfSequenceRequestItem getEndOfSequenceRequestItem() const { return _endOfSequenceRequest; }
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bool hasEndOfSequenceRequestPending() const { return _endOfSequenceRequest.isValid(); }
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void resetEndOfSequenceRequest() { _endOfSequenceRequest.codeOffset = -1; }
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Machine *getMachine() const { return _machine; }
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protected:
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WoodScript *_ws;
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Bytecode *_code;
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long *_vars;
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bool _active, _terminated;
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Machine *_machine;
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Sequence *_parentSequence;
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int32 _layer;
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int32 _startTime, _switchTime;
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long *_dataRow;
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int32 _localVarCount;
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int32 _cmpFlags;
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EndOfSequenceRequestItem _endOfSequenceRequest;
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int32 _indexReg;
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M4Sprite *_curFrame;
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int32 _sequenceHash;
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int32 _returnHashes[8]; //FIXME: Use constant instead of 8
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uint32 _returnOffsets[8];
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int32 _returnStackIndex;
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Common::SeekableReadStream *_stream;
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SpriteAsset *_streamSpriteAsset;
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bool streamOpen();
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bool streamNextFrame();
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void streamClose();
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};
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class Machine {
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public:
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Machine(WoodScript *ws, int32 machineHash, Sequence *parentSeq, int32 dataHash,
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int32 dataRowIndex, int callbackHandler, Common::String machineName, int32 id);
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~Machine();
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void clearMessages();
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void clearPersistentMessages();
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void restorePersistentMessages();
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void sendMessage(uint32 messageHash, long messageValue, Machine *sender);
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void resetSwitchTime();
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bool changeSequenceProgram(int32 sequenceHash);
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bool searchMessages(uint32 messageHash, uint32 messageValue, Machine *sender);
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bool searchPersistentMessages(uint32 messageHash, uint32 messageValue, Machine *sender);
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void enterState();
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int32 execInstruction();
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void execBlock(int32 offset, int32 count);
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int32 getState() { return _currentState; }
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int32 getId() const { return _id; }
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bool m1_gotoState(Instruction &instruction);
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bool m1_jump(Instruction &instruction);
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bool m1_terminate(Instruction &instruction);
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bool m1_startSequence(Instruction &instruction);
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bool m1_pauseSequence(Instruction &instruction);
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bool m1_resumeSequence(Instruction &instruction);
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bool m1_storeValue(Instruction &instruction);
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bool m1_sendMessage(Instruction &instruction);
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bool m1_broadcastMessage(Instruction &instruction);
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bool m1_replyMessage(Instruction &instruction);
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bool m1_sendSystemMessage(Instruction &instruction);
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bool m1_createMachine(Instruction &instruction);
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bool m1_createMachineEx(Instruction &instruction);
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bool m1_clearVars(Instruction &instruction);
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void m1_onEndSequence(Instruction &instruction);
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void m1_onMessage(Instruction &instruction);
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void m1_switchLt(Instruction &instruction);
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void m1_switchLe(Instruction &instruction);
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void m1_switchEq(Instruction &instruction);
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void m1_switchNe(Instruction &instruction);
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void m1_switchGe(Instruction &instruction);
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void m1_switchGt(Instruction &instruction);
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long *dataRow() const { return _dataRow; }
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Sequence *parentSequence() const { return _parentSequence; }
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Common::String name() const { return _name; }
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protected:
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WoodScript *_ws;
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Bytecode *_code;
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Common::String _name;
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Sequence *_sequence, *_parentSequence;
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byte *_mach;
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int32 _machHash, _machineCodeOffset;
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int32 _stateCount, _stateTableOffset;
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long *_dataRow;
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int32 _id, _recursionLevel, _currentState, _targetCount;
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/* TODO:
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m->msgReplyXM = NULL;
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m->CintrMsg = CintrMsg;
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_walkPath
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_messages
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_persistentMessages
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_usedPersistentMessages
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*/
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};
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class WoodScript {
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public:
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WoodScript(M4Engine *vm);
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~WoodScript();
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Machine *createMachine(int32 machineHash, Sequence *parentSeq, int32 dataHash, int32 dataRowIndex, int callbackHandler, const char *machineName);
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Sequence *createSequence(Machine *machine, int32 sequenceHash);
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void runSequencePrograms();
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void runEndOfSequenceRequests();
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void runTimerSequenceRequests();
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/* Series */
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// Move to own class, e.g. SeriesPlayer
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int32 loadSeries(const char* seriesName, int32 hash, RGB8* palette);
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void unloadSeries(int32 hash);
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void setSeriesFramerate(Machine *machine, int32 frameRate);
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Machine *playSeries(const char *seriesName, long layer, uint32 flags, int32 triggerNum,
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int32 frameRate, int32 loopCount, int32 s, int32 x, int32 y,
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int32 firstFrame, int32 lastFrame);
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Machine *showSeries(const char *seriesName, long layer, uint32 flags, int32 triggerNum,
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int32 duration, int32 index, int32 s, int32 x, int32 y);
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Machine *streamSeries(const char *seriesName, int32 frameRate, long layer, int32 triggerNum);
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void update();
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void clear();
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/* Misc */
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void setDepthTable(int16 *depthTable);
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long *getGlobalPtr(int index);
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long getGlobal(int index);
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void setGlobal(int index, long value);
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AssetManager *assets() const { return _assets; }
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// Sets the untouched, clean surface which contains the room background
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void setBackgroundSurface(M4Surface *backgroundSurface);
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// Sets the view which is used for drawing
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void setSurfaceView(View *view);
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RGB8 *getMainPalette() const;
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void setInverseColorTable(byte *inverseColorTable) { _inverseColorTable = inverseColorTable; }
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byte *getInverseColorTable() const { return _inverseColorTable; }
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protected:
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M4Engine *_vm;
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AssetManager *_assets;
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Common::Array<Sequence*> _sequences, _layers;
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Common::Array<Machine*> _machines;
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int32 _machineId;
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long *_globals;
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Common::Array<Sequence*> _endOfSequenceRequestList;
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int32 _indexReg;
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/* Misc */
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int16 *_depthTable;
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byte *_inverseColorTable;
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M4Surface *_backgroundSurface;
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View *_surfaceView;
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};
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} // End of namespace M4
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#endif
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