1 /* 2 * Copyright 2001-2004 Red Hat Inc., Durham, North Carolina. 3 * 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining 7 * a copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation on the rights to use, copy, modify, merge, 10 * publish, distribute, sublicense, and/or sell copies of the Software, 11 * and to permit persons to whom the Software is furnished to do so, 12 * subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial 16 * portions of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 19 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 21 * NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS 22 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 23 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 24 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 25 * SOFTWARE. 26 */ 27 28 /* 29 * Authors: 30 * Kevin E. Martin <kem@redhat.com> 31 * 32 */ 33 34 /** \file 35 * Interface for GC support. \see dmxgc.c */ 36 37 #ifndef DMXGC_H 38 #define DMXGC_H 39 40 #include "gcstruct.h" 41 42 /** GC private area. */ 43 typedef struct _dmxGCPriv { 44 const GCOps *ops; 45 const GCFuncs *funcs; 46 XlibGC gc; 47 Bool msc; 48 } dmxGCPrivRec, *dmxGCPrivPtr; 49 50 extern Bool dmxInitGC(ScreenPtr pScreen); 51 52 extern Bool dmxCreateGC(GCPtr pGC); 53 extern void dmxValidateGC(GCPtr pGC, unsigned long changes, 54 DrawablePtr pDrawable); 55 extern void dmxChangeGC(GCPtr pGC, unsigned long mask); 56 extern void dmxCopyGC(GCPtr pGCSrc, unsigned long changes, GCPtr pGCDst); 57 extern void dmxDestroyGC(GCPtr pGC); 58 extern void dmxChangeClip(GCPtr pGC, int type, void *pvalue, int nrects); 59 extern void dmxDestroyClip(GCPtr pGC); 60 extern void dmxCopyClip(GCPtr pGCDst, GCPtr pGCSrc); 61 62 extern void dmxBECreateGC(ScreenPtr pScreen, GCPtr pGC); 63 extern Bool dmxBEFreeGC(GCPtr pGC); 64 65 /** Get private. */ 66 #define DMX_GET_GC_PRIV(_pGC) \ 67 (dmxGCPrivPtr)dixLookupPrivate(&(_pGC)->devPrivates, dmxGCPrivateKey) 68 69 #define DMX_GC_FUNC_PROLOGUE(_pGC) \ 70 do { \ 71 dmxGCPrivPtr _pGCPriv = DMX_GET_GC_PRIV(_pGC); \ 72 DMX_UNWRAP(funcs, _pGCPriv, (_pGC)); \ 73 if (_pGCPriv->ops) \ 74 DMX_UNWRAP(ops, _pGCPriv, (_pGC)); \ 75 } while (0) 76 77 #define DMX_GC_FUNC_EPILOGUE(_pGC) \ 78 do { \ 79 dmxGCPrivPtr _pGCPriv = DMX_GET_GC_PRIV(_pGC); \ 80 DMX_WRAP(funcs, &dmxGCFuncs, _pGCPriv, (_pGC)); \ 81 if (_pGCPriv->ops) \ 82 DMX_WRAP(ops, &dmxGCOps, _pGCPriv, (_pGC)); \ 83 } while (0) 84 85 #endif /* DMXGC_H */ 86