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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef M4_WSCRIPT_WS_CRUNCHER_H
#define M4_WSCRIPT_WS_CRUNCHER_H
#include "m4/m4_types.h"
#include "m4/wscript/ws_machine.h"
namespace M4 {
#define OP_INSTR 0xfe000000
#define OP_FORMAT1 0x01c00000
#define OP_FORMAT2 0x00380000
#define OP_FORMAT3 0x00070000
#define OP_HIGH_DATA 0xffff0000
#define OP_LOW_DATA 0x0000ffff
#define OP_DATA_SIGN 0x8000
#define OP_DATA_VALUE 0x7fff
#define FMT_NOTHING 0
#define FMT_LOCAL_SRC 1
#define FMT_GLOBAL_SRC 2
#define FMT_INT15 3
#define FMT_4_11 4
#define FMT_7_8 5
#define FMT_11_4 6
#define FMT_15_0 7
#define REG_SET_IDX 0x0fff
#define REG_SET_IDX_REG 0x8000
#define LOCAL_FMT 0x7000
#define LOCAL_FMT_PARENT 0x0000
#define LOCAL_FMT_REG 0x1000
#define LOCAL_FMT_DATA 0x2000
#define BRANCH_BR 0
#define BRANCH_BLT 1
#define BRANCH_BLE 2
#define BRANCH_BE 3
#define BRANCH_BNE 4
#define BRANCH_BGE 5
#define BRANCH_BGT 6
struct EOSreq {
EOSreq *next = nullptr;
EOSreq *prev = nullptr;
Anim8 *myAnim8 = nullptr;
};
struct cruncher {
Anim8 *backLayerAnim8;
Anim8 *frontLayerAnim8;
Anim8 *firstAnim8ToCrunch;
Anim8 *lastAnim8ToCrunch;
};
struct WSCruncher_Globals {
cruncher *_myCruncher = nullptr;
bool _cruncherInitialized = false;
EOSreq *_EOSreqList = nullptr;
int32 _memtypeEOS = -1;
int32 _stackSize = 0;
uint32 *_stackBase = nullptr;
uint32 *_stackTop = nullptr;
uint32 *_stackLimit = nullptr;
Anim8 *_crunchNext = nullptr;
// OPCODE PROCESSING GLOBALS
int16 *_myDepthTable = nullptr;
frac16 _dataArg1 = 0;
frac16 _dataArg2 = 0;
frac16 _dataArg3 = 0;
frac16 *_myArg1 = nullptr;
frac16 *_myArg2 = nullptr;
frac16 *_myArg3 = nullptr;
bool _keepProcessing = false, _terminated = false, _mapTheCel = false;
int32 _compareCCR = 0;
int32 _indexReg = 0;
int32 _pcOffsetOld = 0;
};
int32 *ws_GetDataFormats();
bool ws_InitCruncher();
void ws_KillCruncher();
Anim8 *ws_AddAnim8ToCruncher(machine *m, int32 sequHash);
/**
* This procedure assumes a machine has a slot with it's own memory
*/
bool ws_ChangeAnim8Program(machine *m, int32 newSequHash);
/**
* This procedure flags the anim8 slot as empty
*/
void ws_RemoveAnim8FromCruncher(Anim8 *myAnim8);
bool ws_PauseAnim8(Anim8 *myAnim8);
bool ws_ResumeAnim8(Anim8 *myAnim8);
/**
* Pre-processes a pcode instruction parameters.
* The instruction number is returned by this function, and the arguments are
* pointed to by these external globals:
* Frac16 *myArg1
* Frac16 *myArg2
* Frac16 *myArg3
*/
int32 ws_PreProcessPcode(uint32 **PC, Anim8 *myAnim8);
void ws_CrunchAnim8s(int16 *depth_table);
void ws_CrunchEOSreqs();
bool ws_OnEndSeqRequest(Anim8 *myAnim8, int32 pcOffset, int32 pcCount);
void ws_CancelOnEndSeq(Anim8 *myAnim8);
} // End of namespace M4
#endif
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