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Diffstat (limited to 'sc4pd/headers/lang/PyrObject.h')
| -rw-r--r-- | sc4pd/headers/lang/PyrObject.h | 288 |
1 files changed, 288 insertions, 0 deletions
diff --git a/sc4pd/headers/lang/PyrObject.h b/sc4pd/headers/lang/PyrObject.h new file mode 100644 index 0000000..05abf21 --- /dev/null +++ b/sc4pd/headers/lang/PyrObject.h @@ -0,0 +1,288 @@ +/* + 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 |