44 lines
1.8 KiB
C
Executable File
44 lines
1.8 KiB
C
Executable File
/*
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* UPIWIN - Micro Pi Windowing Framework Kernel
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* Copyright (C) 2019 Amy Bowersox/Erbosoft Metaverse Design Solutions
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*-------------------------------------------------------------------------
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*/
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#ifndef __GFXOBJ_H_INCLUDED
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#define __GFXOBJ_H_INCLUDED
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#include "wintype.h"
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/* type definition for a graphics destructor */
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typedef void (*GFX_DTOR)(PVOID obj);
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/* A graphics object in memory always starts with this. */
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typedef struct tagGFXOBJECT {
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UINT32 sig; /* signature so we know what something is */
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UINT32 size; /* size of total allocated memory in block */
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INT32 refcnt; /* reference count */
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GFX_DTOR dtor; /* destructor function called when we're no longer needed */
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struct tagGFXOBJECT *next; /* support double linked lists of obejcts */
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struct tagGFXOBJECT *prev;
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} GFXOBJECT, *PGFXOBJECT;
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extern void _Go_init(PGFXOBJECT obj, UINT32 sig, UINT32 size);
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extern void Go_unchain(PGFXOBJECT obj);
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extern INT32 Go_addref(PGFXOBJECT obj);
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extern INT32 Go_release(PGFXOBJECT obj);
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#endif /* __GFXOBJ_H_INCLUDED */
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