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dmxgc.h

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00001 /* $XFree86$ */
00002 /*
00003  * Copyright 2001-2004 Red Hat Inc., Durham, North Carolina.
00004  *
00005  * All Rights Reserved.
00006  *
00007  * Permission is hereby granted, free of charge, to any person obtaining
00008  * a copy of this software and associated documentation files (the
00009  * "Software"), to deal in the Software without restriction, including
00010  * without limitation on the rights to use, copy, modify, merge,
00011  * publish, distribute, sublicense, and/or sell copies of the Software,
00012  * and to permit persons to whom the Software is furnished to do so,
00013  * subject to the following conditions:
00014  *
00015  * The above copyright notice and this permission notice (including the
00016  * next paragraph) shall be included in all copies or substantial
00017  * portions of the Software.
00018  *
00019  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
00020  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00021  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00022  * NON-INFRINGEMENT.  IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
00023  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
00024  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
00025  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
00026  * SOFTWARE.
00027  */
00028 
00029 /*
00030  * Authors:
00031  *   Kevin E. Martin <kem@redhat.com>
00032  *
00033  */
00034 
00038 #ifndef DMXGC_H
00039 #define DMXGC_H
00040 
00041 #include "gcstruct.h"
00042 
00044 typedef struct _dmxGCPriv {
00045     GCOps   *ops;
00046     GCFuncs *funcs;
00047     XlibGC   gc;
00048     Bool     msc;
00049 } dmxGCPrivRec, *dmxGCPrivPtr;
00050 
00051 
00052 extern Bool dmxInitGC(ScreenPtr pScreen);
00053 
00054 extern Bool dmxCreateGC(GCPtr pGC);
00055 extern void dmxValidateGC(GCPtr pGC, unsigned long changes,
00056                           DrawablePtr pDrawable);
00057 extern void dmxChangeGC(GCPtr pGC, unsigned long mask);
00058 extern void dmxCopyGC(GCPtr pGCSrc, unsigned long changes, GCPtr pGCDst);
00059 extern void dmxDestroyGC(GCPtr pGC);
00060 extern void dmxChangeClip(GCPtr pGC, int type, pointer pvalue, int nrects);
00061 extern void dmxDestroyClip(GCPtr pGC);
00062 extern void dmxCopyClip(GCPtr pGCDst, GCPtr pGCSrc);
00063 
00064 extern void dmxBECreateGC(ScreenPtr pScreen, GCPtr pGC);
00065 extern Bool dmxBEFreeGC(GCPtr pGC);
00066 
00068 extern int dmxGCPrivateIndex;
00069 
00071 #define DMX_GET_GC_PRIV(_pGC)                                           \
00072     (dmxGCPrivPtr)(_pGC)->devPrivates[dmxGCPrivateIndex].ptr
00073 
00074 #define DMX_GC_FUNC_PROLOGUE(_pGC)                                      \
00075 do {                                                                    \
00076     dmxGCPrivPtr _pGCPriv = DMX_GET_GC_PRIV(_pGC);                      \
00077     DMX_UNWRAP(funcs, _pGCPriv, (_pGC));                                \
00078     if (_pGCPriv->ops)                                                  \
00079         DMX_UNWRAP(ops, _pGCPriv, (_pGC));                              \
00080 } while (0)
00081 
00082 #define DMX_GC_FUNC_EPILOGUE(_pGC)                                      \
00083 do {                                                                    \
00084     dmxGCPrivPtr _pGCPriv = DMX_GET_GC_PRIV(_pGC);                      \
00085     DMX_WRAP(funcs, &dmxGCFuncs, _pGCPriv, (_pGC));                     \
00086     if (_pGCPriv->ops)                                                  \
00087         DMX_WRAP(ops, &dmxGCOps, _pGCPriv, (_pGC));                     \
00088 } while (0)
00089 
00090 #endif /* DMXGC_H */
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