Home | History | Annotate | Line # | Download | only in cw 
      1 /*
      2  * Copyright  2004 Eric Anholt
      3  *
      4  * Permission to use, copy, modify, distribute, and sell this software and its
      5  * documentation for any purpose is hereby granted without fee, provided that
      6  * the above copyright notice appear in all copies and that both that
      7  * copyright notice and this permission notice appear in supporting
      8  * documentation, and that the name of Eric Anholt not be used in
      9  * advertising or publicity pertaining to distribution of the software without
     10  * specific, written prior permission.  Eric Anholt makes no
     11  * representations about the suitability of this software for any purpose.  It
     12  * is provided "as is" without express or implied warranty.
     13  *
     14  * ERIC ANHOLT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
     15  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
     16  * EVENT SHALL ERIC ANHOLT BE LIABLE FOR ANY SPECIAL, INDIRECT OR
     17  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
     18  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
     19  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
     20  * PERFORMANCE OF THIS SOFTWARE.
     21  */
     22 
     23 #ifdef HAVE_DIX_CONFIG_H
     24 #include <dix-config.h>
     25 #endif
     26 
     27 #include "gcstruct.h"
     28 #include "picturestr.h"
     29 #include "privates.h"
     30 
     31 /*
     32  * One of these structures is allocated per GC that gets used with a window with
     33  * backing pixmap.
     34  */
     35 
     36 typedef struct {
     37     GCPtr	    pBackingGC;	    /* Copy of the GC but with graphicsExposures
     38 				     * set FALSE and the clientClip set to
     39 				     * clip output to the valid regions of the
     40 				     * backing pixmap. */
     41     unsigned long   serialNumber;   /* clientClip computed time */
     42     unsigned long   stateChanges;   /* changes in parent gc since last copy */
     43     GCOps	    *wrapOps;	    /* wrapped ops */
     44     GCFuncs	    *wrapFuncs;	    /* wrapped funcs */
     45 } cwGCRec, *cwGCPtr;
     46 
     47 extern _X_EXPORT DevPrivateKeyRec cwGCKeyRec;
     48 #define cwGCKey (&cwGCKeyRec)
     49 
     50 #define getCwGC(pGC) ((cwGCPtr)dixLookupPrivate(&(pGC)->devPrivates, cwGCKey))
     51 #define setCwGC(pGC,p) dixSetPrivate(&(pGC)->devPrivates, cwGCKey, p)
     52 
     53 /*
     54  * One of these structures is allocated per Picture that gets used with a
     55  * window with a backing pixmap
     56  */
     57 
     58 typedef struct {
     59     PicturePtr	    pBackingPicture;
     60     unsigned long   serialNumber;
     61     unsigned long   stateChanges;
     62 } cwPictureRec, *cwPicturePtr;
     63 
     64 extern _X_EXPORT DevPrivateKeyRec cwPictureKeyRec;
     65 #define cwPictureKey (&cwPictureKeyRec)
     66 
     67 #define getCwPicture(pPicture) (pPicture->pDrawable ? \
     68     (cwPicturePtr)dixLookupPrivate(&(pPicture)->devPrivates, cwPictureKey) : 0)
     69 #define setCwPicture(pPicture,p) dixSetPrivate(&(pPicture)->devPrivates, cwPictureKey, p)
     70 
     71 extern _X_EXPORT DevPrivateKeyRec cwWindowKeyRec;
     72 #define cwWindowKey (&cwWindowKeyRec)
     73 
     74 #define cwWindowPrivate(pWin) dixLookupPrivate(&(pWin)->devPrivates, cwWindowKey)
     75 #define getCwPixmap(pWindow)	    ((PixmapPtr) cwWindowPrivate(pWindow))
     76 #define setCwPixmap(pWindow,pPixmap) \
     77     dixSetPrivate(&(pWindow)->devPrivates, cwWindowKey, pPixmap)
     78 
     79 #define cwDrawableIsRedirWindow(pDraw)					\
     80 	((pDraw)->type == DRAWABLE_WINDOW &&				\
     81 	 getCwPixmap((WindowPtr) (pDraw)) != NULL)
     82 
     83 typedef struct {
     84     /*
     85      * screen func wrappers
     86      */
     87     CloseScreenProcPtr		CloseScreen;
     88     GetImageProcPtr		GetImage;
     89     GetSpansProcPtr		GetSpans;
     90     CreateGCProcPtr		CreateGC;
     91 
     92     CopyWindowProcPtr		CopyWindow;
     93 
     94     GetWindowPixmapProcPtr	GetWindowPixmap;
     95     SetWindowPixmapProcPtr	SetWindowPixmap;
     96 
     97     DestroyPictureProcPtr	DestroyPicture;
     98     ChangePictureClipProcPtr	ChangePictureClip;
     99     DestroyPictureClipProcPtr	DestroyPictureClip;
    100 
    101     ChangePictureProcPtr	ChangePicture;
    102     ValidatePictureProcPtr	ValidatePicture;
    103 
    104     CompositeProcPtr		Composite;
    105     CompositeRectsProcPtr	CompositeRects;
    106 
    107     TrapezoidsProcPtr		Trapezoids;
    108     TrianglesProcPtr		Triangles;
    109     TriStripProcPtr		TriStrip;
    110     TriFanProcPtr		TriFan;
    111 
    112     RasterizeTrapezoidProcPtr	RasterizeTrapezoid;
    113 } cwScreenRec, *cwScreenPtr;
    114 
    115 extern _X_EXPORT DevPrivateKeyRec cwScreenKeyRec;
    116 #define cwScreenKey (&cwScreenKeyRec)
    117 
    118 #define getCwScreen(pScreen) ((cwScreenPtr)dixLookupPrivate(&(pScreen)->devPrivates, cwScreenKey))
    119 #define setCwScreen(pScreen,p) dixSetPrivate(&(pScreen)->devPrivates, cwScreenKey, p)
    120 
    121 #define CW_OFFSET_XYPOINTS(ppt, npt) do { \
    122     DDXPointPtr _ppt = (DDXPointPtr)(ppt); \
    123     int _i; \
    124     for (_i = 0; _i < npt; _i++) { \
    125 	_ppt[_i].x += dst_off_x; \
    126 	_ppt[_i].y += dst_off_y; \
    127     } \
    128 } while (0)
    129 
    130 #define CW_OFFSET_RECTS(prect, nrect) do { \
    131     int _i; \
    132     for (_i = 0; _i < nrect; _i++) { \
    133 	(prect)[_i].x += dst_off_x; \
    134 	(prect)[_i].y += dst_off_y; \
    135     } \
    136 } while (0)
    137 
    138 #define CW_OFFSET_ARCS(parc, narc) do { \
    139     int _i; \
    140     for (_i = 0; _i < narc; _i++) { \
    141 	(parc)[_i].x += dst_off_x; \
    142 	(parc)[_i].y += dst_off_y; \
    143     } \
    144 } while (0)
    145 
    146 #define CW_OFFSET_XY_DST(x, y) do { \
    147     (x) = (x) + dst_off_x; \
    148     (y) = (y) + dst_off_y; \
    149 } while (0)
    150 
    151 #define CW_OFFSET_XY_SRC(x, y) do { \
    152     (x) = (x) + src_off_x; \
    153     (y) = (y) + src_off_y; \
    154 } while (0)
    155 
    156 /* cw.c */
    157 extern _X_EXPORT DrawablePtr
    158 cwGetBackingDrawable(DrawablePtr pDrawable, int *x_off, int *y_off);
    159 
    160 /* cw_render.c */
    161 
    162 extern _X_EXPORT void
    163 cwInitializeRender (ScreenPtr pScreen);
    164 
    165 extern _X_EXPORT void
    166 cwFiniRender (ScreenPtr pScreen);
    167 
    168 /* cw.c */
    169 
    170 extern _X_EXPORT void
    171 miInitializeCompositeWrapper(ScreenPtr pScreen);
    172