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/*
SuperCollider real time audio synthesis system
Copyright (c) 2002 James McCartney. All rights reserved.
http://www.audiosynth.com
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
*/
/*
PyrObject represents the structure of all SC Objects.
*/
#ifndef _PYROBJECT_H_
#define _PYROBJECT_H_
#include "PyrSlot.h"
/* special gc colors */
enum {
obj_permanent = 1, // sent to gc->New as a flag
obj_gcmarker = 2 // gc treadmill marker
};
/* obj flag fields */
enum {
obj_immutable = 16,
obj_marked = 128
};
/* format types : */
enum {
obj_notindexed,
obj_slot,
obj_double,
obj_float,
obj_int32,
obj_int16,
obj_int8,
obj_char,
obj_symbol,
NUMOBJFORMATS
};
/*
PyrObjectHdr : object header fields
prev, next : pointers in the GC treadmill
classptr : pointer to the object's class
size : number of slots or indexable elements.
obj_format : what kind of data this object holds
obj_sizeclass : power of two size class of the object
obj_flags :
immutable : set if object may not be updated.
finalize : set if object requires finalization.
marked : used by garbage collector debug sanity check. may be used by primitives but must be cleared before exiting primitive.
gc_color : GC color : black, grey, white, free, permanent
scratch1 : undefined value. may be used within primitives as a temporary scratch value.
*/
struct PyrObjectHdr {
struct PyrObjectHdr *prev, *next;
struct PyrClass *classptr;
int size;
unsigned char obj_format;
unsigned char obj_sizeclass;
unsigned char obj_flags;
unsigned char gc_color;
int scratch1;
int SizeClass() { return obj_sizeclass; }
void SetMark() { obj_flags |= obj_marked; }
void ClearMark() { obj_flags &= ~obj_marked; }
bool IsMarked() { return obj_flags & obj_marked; }
bool IsPermanent() { return gc_color == obj_permanent; }
};
struct PyrObject : public PyrObjectHdr {
PyrSlot slots[1];
};
struct PyrList : public PyrObjectHdr
{
PyrSlot array;
};
struct PyrDoubleArray : public PyrObjectHdr
{
double d[1];
};
struct PyrFloatArray : public PyrObjectHdr
{
float f[1];
};
struct PyrInt32Array : public PyrObjectHdr
{
uint32 i[1];
};
struct PyrInt16Array : public PyrObjectHdr
{
uint16 i[1];
};
struct PyrInt8Array : public PyrObjectHdr
{
uint8 b[1];
};
struct PyrRGBArray : public PyrObjectHdr
{
RGBColor8 r[1];
};
struct PyrString : public PyrObjectHdr
{
char s[1];
};
struct PyrSymbolArray : public PyrObjectHdr
{
PyrSymbol* symbols[1];
};
extern struct PyrClass *class_object;
extern struct PyrClass *class_array;
extern struct PyrClass *class_list, *class_method, *class_fundef, *class_frame, *class_class;
extern struct PyrClass *class_symbol, *class_nil;
extern struct PyrClass *class_boolean, *class_true, *class_false;
extern struct PyrClass *class_int, *class_char, *class_float, *class_complex;
extern struct PyrClass *class_rawptr;
extern struct PyrClass *class_string;
extern struct PyrClass *class_magnitude, *class_number, *class_collection;
extern struct PyrClass *class_sequenceable_collection;
extern struct PyrClass *class_arrayed_collection;
extern struct PyrClass *class_simple_number;
extern struct PyrClass *class_signal;
extern struct PyrClass *class_wavetable;
extern struct PyrClass *class_rawarray;
extern struct PyrClass *class_int8array;
extern struct PyrClass *class_int16array;
extern struct PyrClass *class_int32array;
extern struct PyrClass *class_symbolarray;
extern struct PyrClass *class_floatarray;
extern struct PyrClass *class_doublearray;
extern struct PyrClass *class_func, *class_absfunc;
extern struct PyrClass *class_stream;
extern struct PyrClass *class_process;
extern struct PyrClass *class_thread;
extern struct PyrClass *class_routine;
extern struct PyrClass *class_inf;
extern struct PyrClass *class_finalizer;
extern PyrSymbol *s_none;
extern PyrSymbol *s_object;
extern PyrSymbol *s_bag;
extern PyrSymbol *s_set;
extern PyrSymbol *s_identityset;
extern PyrSymbol *s_dictionary;
extern PyrSymbol *s_identitydictionary;
extern PyrSymbol *s_linkedlist;
extern PyrSymbol *s_sortedlist;
extern PyrSymbol *s_array;
extern PyrSymbol *s_list, *s_method, *s_fundef, *s_frame, *s_class;
extern PyrSymbol *s_symbol, *s_nil, *s_inf;
extern PyrSymbol *s_boolean, *s_true, *s_false;
extern PyrSymbol *s_int, *s_char, *s_color, *s_float, *s_complex;
extern PyrSymbol *s_rawptr, *s_objptr;
extern PyrSymbol *s_string;
extern PyrSymbol *s_magnitude, *s_number, *s_collection;
extern PyrSymbol *s_ordered_collection;
extern PyrSymbol *s_sequenceable_collection;
extern PyrSymbol *s_arrayed_collection;
extern PyrSymbol *s_simple_number;
extern PyrSymbol *s_signal;
extern PyrSymbol *s_wavetable;
extern PyrSymbol *s_int8array;
extern PyrSymbol *s_int16array;
extern PyrSymbol *s_int32array;
extern PyrSymbol *s_symbolarray;
extern PyrSymbol *s_floatarray;
extern PyrSymbol *s_doublearray;
extern PyrSymbol *s_point;
extern PyrSymbol *s_rect;
extern PyrSymbol *s_stream;
extern PyrSymbol *s_process;
extern PyrSymbol *s_main;
extern PyrSymbol *s_thread;
extern PyrSymbol *s_routine;
extern PyrSymbol *s_linear, *s_exponential, *s_gate;
extern PyrSymbol *s_env;
extern PyrSymbol *s_audio, *s_control, *s_scalar;
extern PyrSymbol *s_run;
extern PyrSymbol *s_next;
extern PyrSymbol *s_at;
extern PyrSymbol *s_put;
extern PyrSymbol *s_series, *s_copyseries, *s_putseries;
extern PyrSymbol *s_value;
extern PyrSymbol *s_performList;
extern PyrSymbol *s_superPerformList;
extern PyrSymbol *s_ugen, *s_outputproxy;
extern PyrSymbol *s_new, *s_ref;
extern PyrSymbol *s_synth, *s_spawn, *s_environment, *s_event;
extern PyrSymbol *s_interpreter;
extern PyrSymbol *s_finalizer;
extern PyrSymbol *s_awake;
extern PyrSymbol *s_appclock;
extern PyrSymbol *s_systemclock;
extern int gFormatElemSize[NUMOBJFORMATS];
extern int gFormatElemCapc[NUMOBJFORMATS];
extern int gFormatElemTag[NUMOBJFORMATS];
void dumpObject(PyrObject *obj);
void dumpObjectSlot(PyrSlot *slot);
bool respondsTo(PyrSlot *slot, PyrSymbol *selector);
bool isSubclassOf(struct PyrClass *classobj, struct PyrClass *testclass);
const int kFloatTagIndex = 12;
extern struct PyrClass* gTagClassTable[16];
inline struct PyrClass* classOfSlot(PyrSlot *slot)
{
PyrClass *classobj;
int tag;
if (IsFloat(slot)) classobj = gTagClassTable[kFloatTagIndex];
else if ((tag = slot->utag & 0xF) == 1) classobj = slot->uo->classptr;
else classobj = gTagClassTable[tag];
return classobj;
}
typedef int (*ObjFuncPtr)(struct VMGlobals*, struct PyrObject*);
void stringFromPyrString(PyrString *obj, char *str, int maxlength);
void pstringFromPyrString(PyrString *obj, unsigned char *str, int maxlength);
int instVarOffset(char *classname, char *instvarname);
int classVarOffset(char *classname, char *classvarname, PyrClass** classobj);
void fillSlots(PyrSlot* slot, int size, PyrSlot* fillslot);
void nilSlots(PyrSlot* slot, int size);
void zeroSlots(PyrSlot* slot, int size);
int calcHash(PyrSlot *a);
int getIndexedFloat(struct PyrObject *obj, int index, float *value);
int getIndexedDouble(struct PyrObject *obj, int index, double *value);
void getIndexedSlot(struct PyrObject *obj, PyrSlot *a, int index);
int putIndexedSlot(struct VMGlobals *g, struct PyrObject *obj, PyrSlot *c, int index);
int putIndexedFloat(PyrObject *obj, double val, int index);
inline int ARRAYMAXINDEXSIZE(PyrObjectHdr* obj)
{
return (1L << obj->obj_sizeclass);
}
inline int MAXINDEXSIZE(PyrObjectHdr* obj)
{
return ((1L << obj->obj_sizeclass) * gFormatElemCapc[ obj->obj_format ]);
}
void InstallFinalizer(VMGlobals* g, PyrObject *inObj, int slotIndex, ObjFuncPtr inFunc);
/////
#endif
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