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https://github.com/libretro/scummvm.git
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169 lines
4.7 KiB
C++
169 lines
4.7 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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*
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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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* Virtual processor definitions
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*/
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#ifndef TINSEL_PCODE_H // prevent multiple includes
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#define TINSEL_PCODE_H
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#include "tinsel/events.h" // for TINSEL_EVENT
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#include "tinsel/sched.h" // for PROCESS
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namespace Common {
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class Serializer;
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}
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namespace Tinsel {
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// forward declaration
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struct INV_OBJECT;
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enum RESUME_STATE {
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RES_NOT, RES_1, RES_2
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};
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enum {
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PCODE_STACK_SIZE = 128 ///< interpeters stack size
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};
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enum GSORT {
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GS_NONE, GS_ACTOR, GS_MASTER, GS_POLYGON, GS_INVENTORY, GS_SCENE,
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GS_PROCESS, GS_GPROCESS
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};
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enum RESCODE {RES_WAITING, RES_FINISHED, RES_CUTSHORT};
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struct WorkaroundEntry;
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struct INT_CONTEXT {
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// Elements for interpret context management
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PROCESS *pProc; ///< processes owning this context
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GSORT GSort; ///< sort of this context
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// Previously parameters to Interpret()
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SCNHANDLE hCode; ///< scene handle of the code to execute
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byte *code; ///< pointer to the code to execute
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TINSEL_EVENT event; ///< causal event
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HPOLYGON hPoly; ///< associated polygon (if any)
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int idActor; ///< associated actor (if any)
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INV_OBJECT *pinvo; ///< associated inventory object
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// Previously local variables in Interpret()
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int32 stack[PCODE_STACK_SIZE]; ///< interpeters run time stack
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int sp; ///< stack pointer
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int bp; ///< base pointer
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int ip; ///< instruction pointer
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bool bHalt; ///< set to exit interpeter
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bool escOn;
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int myEscape; ///< only initialised to prevent compiler warning!
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uint32 waitNumber1; // The waiting numbert
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uint32 waitNumber2; // The wait for number
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RESCODE resumeCode;
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RESUME_STATE resumeState;
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// Used to store execution state within a script workaround fragment
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const WorkaroundEntry *fragmentPtr;
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void syncWithSerializer(Common::Serializer &s);
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};
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typedef INT_CONTEXT *PINT_CONTEXT;
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/*----------------------------------------------------------------------*\
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|* Interpreter Function Prototypes *|
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\*----------------------------------------------------------------------*/
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// Interprets the PCODE instructions in the code array
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void Interpret(CORO_PARAM, INT_CONTEXT *ic);
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INT_CONTEXT *InitInterpretContext(
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GSORT gsort,
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SCNHANDLE hCode, // code to execute
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TINSEL_EVENT event, // causal event
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HPOLYGON hpoly, // associated polygon (if any)
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int actorid, // associated actor (if any)
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INV_OBJECT *pinvo,
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int myEscape = -1); // associated inventory object
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INT_CONTEXT *RestoreInterpretContext(INT_CONTEXT *ric);
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void FreeMostInterpretContexts();
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void FreeMasterInterpretContext();
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void SaveInterpretContexts(INT_CONTEXT *sICInfo);
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void RegisterGlobals(int num);
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void FreeGlobals();
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void AttachInterpret(INT_CONTEXT *pic, PROCESS *pProc);
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void WaitInterpret(CORO_PARAM, PPROCESS pWaitProc, bool *result);
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#define NUM_INTERPRET (NUM_PROCESS - 20)
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#define MAX_INTERPRET (MAX_PROCESSES - 20)
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/*----------------------------------------------------------------------*\
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|* Library Procedure and Function codes parameter enums *|
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\*----------------------------------------------------------------------*/
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#define TAG_DEF 0 // For tagactor()
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#define TAG_Q1TO3 1 // tag types
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#define TAG_Q1TO4 2 // tag types
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#define CONV_DEF 0 //
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#define CONV_BOTTOM 1 // conversation() parameter
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#define CONV_END 2 //
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#define CONTROL_OFF 0 // control()
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#define CONTROL_ON 1 // parameter
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#define CONTROL_OFFV 2 //
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#define CONTROL_OFFV2 3 //
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#define CONTROL_STARTOFF 4 //
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#define NULL_ACTOR (-1) // For actor parameters
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#define LEAD_ACTOR (-2) //
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#define RAND_NORM 0 // For random() frills
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#define RAND_NORPT 1 //
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#define D_UP 1
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#define D_DOWN 0
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#define TW_START 1 // topwindow() parameter
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#define TW_END 2 //
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#define MIDI_DEF 0
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#define MIDI_LOOP 1
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#define FM_IN 0 //
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#define FM_OUT 1 // fademidi()
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#define FG_ON 0 //
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#define FG_OFF 1 // FrameGrab()
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#define ST_ON 0 //
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#define ST_OFF 1 // SubTitles()
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} // End of namespace Tinsel
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#endif // TINSEL_PCODE_H
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