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# dmxgc.h

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    00001 /*
    00002  * Copyright 2001-2004 Red Hat Inc., Durham, North Carolina.
    00003  *
    00004  * All Rights Reserved.
    00005  *
    00006  * Permission is hereby granted, free of charge, to any person obtaining
    00007  * a copy of this software and associated documentation files (the
    00008  * "Software"), to deal in the Software without restriction, including
    00009  * without limitation on the rights to use, copy, modify, merge,
    00010  * publish, distribute, sublicense, and/or sell copies of the Software,
    00011  * and to permit persons to whom the Software is furnished to do so,
    00012  * subject to the following conditions:
    00013  *
    00014  * The above copyright notice and this permission notice (including the
    00015  * next paragraph) shall be included in all copies or substantial
    00016  * portions of the Software.
    00017  *
    00018  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
    00019  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
    00020  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
    00021  * NON-INFRINGEMENT.  IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
    00022  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
    00023  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
    00024  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
    00025  * SOFTWARE.
    00026  */
    00027
    00028 /*
    00029  * Authors:
    00030  *   Kevin E. Martin <kem@redhat.com>
    00031  *
    00032  */
    00033
    00037 #ifndef DMXGC_H
    00038 #define DMXGC_H
    00039
    00040 #include "gcstruct.h"
    00041
    00043 typedef struct _dmxGCPriv {
    00044     GCOps   *ops;
    00045     GCFuncs *funcs;
    00046     XlibGC   gc;
    00047     Bool     msc;
    00048 } dmxGCPrivRec, *dmxGCPrivPtr;
    00049
    00050
    00051 extern Bool dmxInitGC(ScreenPtr pScreen);
    00052
    00053 extern Bool dmxCreateGC(GCPtr pGC);
    00054 extern void dmxValidateGC(GCPtr pGC, unsigned long changes,
    00055                           DrawablePtr pDrawable);
    00056 extern void dmxChangeGC(GCPtr pGC, unsigned long mask);
    00057 extern void dmxCopyGC(GCPtr pGCSrc, unsigned long changes, GCPtr pGCDst);
    00058 extern void dmxDestroyGC(GCPtr pGC);
    00059 extern void dmxChangeClip(GCPtr pGC, int type, pointer pvalue, int nrects);
    00060 extern void dmxDestroyClip(GCPtr pGC);
    00061 extern void dmxCopyClip(GCPtr pGCDst, GCPtr pGCSrc);
    00062
    00063 extern void dmxBECreateGC(ScreenPtr pScreen, GCPtr pGC);
    00064 extern Bool dmxBEFreeGC(GCPtr pGC);
    00065
    00067 #define DMX_GET_GC_PRIV(_pGC)                                           \
    00068     (dmxGCPrivPtr)dixLookupPrivate(&(_pGC)->devPrivates, dmxGCPrivateKey)
    00069
    00070 #define DMX_GC_FUNC_PROLOGUE(_pGC)                                      \
    00071 do {                                                                    \
    00072     dmxGCPrivPtr _pGCPriv = DMX_GET_GC_PRIV(_pGC);                      \
    00073     DMX_UNWRAP(funcs, _pGCPriv, (_pGC));                                \
    00074     if (_pGCPriv->ops)                                                  \
    00075         DMX_UNWRAP(ops, _pGCPriv, (_pGC));                              \
    00076 } while (0)
    00077
    00078 #define DMX_GC_FUNC_EPILOGUE(_pGC)                                      \
    00079 do {                                                                    \
    00080     dmxGCPrivPtr _pGCPriv = DMX_GET_GC_PRIV(_pGC);                      \
    00081     DMX_WRAP(funcs, &dmxGCFuncs, _pGCPriv, (_pGC));                     \
    00082     if (_pGCPriv->ops)                                                  \
    00083         DMX_WRAP(ops, &dmxGCOps, _pGCPriv, (_pGC));                     \
    00084 } while (0)
    00085
    00086 #endif /* DMXGC_H */