xserver/include/dristruct.h

/**************************************************************************

Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
All Rights Reserved.

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"Software"), to deal in the Software without restriction, including
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The above copyright notice and this permission notice (including the
next paragraph) shall be included in all copies or substantial portions
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
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**************************************************************************/

/*
 * Authors:
 *   Jens Owen <jens@tungstengraphics.com>
 *
 */

#ifndef DRI_STRUCT_H
#define DRI_STRUCT_H

#include "dri.h"
#include "sarea.h"
#include "xf86drm.h"
#include "xf86Crtc.h"

#define DRI_DRAWABLE_PRIV_FROM_WINDOW(pWin) ((DRIDrawablePrivPtr) \
    dixLookupPrivate(&(pWin)->devPrivates, DRIWindowPrivKey))
#define DRI_DRAWABLE_PRIV_FROM_PIXMAP(pPix) ((DRIDrawablePrivPtr) \
    dixLookupPrivate(&(pPix)->devPrivates, DRIWindowPrivKey))

typedef struct _DRIDrawablePrivRec {
    drm_drawable_t hwDrawable;
    int drawableIndex;
    ScreenPtr pScreen;
    int refCount;
    int nrects;
} DRIDrawablePrivRec, *DRIDrawablePrivPtr;

struct _DRIContextPrivRec {
    drm_context_t hwContext;
    ScreenPtr pScreen;
    Bool valid3D;
    DRIContextFlags flags;
    void **pContextStore;
};

#define DRI_SCREEN_PRIV_FROM_INDEX(screenIndex) ((DRIScreenPrivPtr) \
    dixLookupPrivate(&screenInfo.screens[screenIndex]->devPrivates, \
		     DRIScreenPrivKey))

#define DRI_ENT_PRIV(pScrn)  \
    ((DRIEntPrivIndex < 0) ? \
     NULL:		     \
     ((DRIEntPrivPtr)(xf86GetEntityPrivate((pScrn)->entityList[0], \
					   DRIEntPrivIndex)->ptr)))

typedef struct _DRIScreenPrivRec {
    Bool directRenderingSupport;
    int drmFD;                  /* File descriptor for /dev/video/?   */
    drm_handle_t hSAREA;        /* Handle to SAREA, for mapping       */
    XF86DRISAREAPtr pSAREA;     /* Mapped pointer to SAREA            */
    drm_context_t myContext;    /* DDX Driver's context               */
    DRIContextPrivPtr myContextPriv;    /* Pointer to server's private area   */
    DRIContextPrivPtr lastPartial3DContext;     /* last one partially saved  */
    void **hiddenContextStore;  /* hidden X context          */
    void **partial3DContextStore;       /* parital 3D context        */
    DRIInfoPtr pDriverInfo;
    int nrWindows;
    int nrWindowsVisible;
    int nrWalked;
    drm_clip_rect_t private_buffer_rect;        /* management of private buffers */
    DrawablePtr fullscreen;     /* pointer to fullscreen drawable */
    drm_clip_rect_t fullscreen_rect;    /* fake rect for fullscreen mode */
    DRIWrappedFuncsRec wrap;
    void *_dummy1; // required in place of a removed field for ABI compatibility
    DrawablePtr DRIDrawables[SAREA_MAX_DRAWABLES];
    DRIContextPrivPtr dummyCtxPriv;     /* Pointer to dummy context */
    Bool createDummyCtx;
    Bool createDummyCtxPriv;
    Bool grabbedDRILock;
    Bool drmSIGIOHandlerInstalled;
    Bool wrapped;
    Bool windowsTouched;
    int lockRefCount;
    drm_handle_t hLSAREA;       /* Handle to SAREA containing lock, for mapping */
    XF86DRILSAREAPtr pLSAREA;   /* Mapped pointer to SAREA containing lock */
    int *pLockRefCount;
    int *pLockingContext;
    xf86_crtc_notify_proc_ptr xf86_crtc_notify;
} DRIScreenPrivRec, *DRIScreenPrivPtr;

typedef struct _DRIEntPrivRec {
    int drmFD;
    Bool drmOpened;
    Bool sAreaGrabbed;
    drm_handle_t hLSAREA;
    XF86DRILSAREAPtr pLSAREA;
    unsigned long sAreaSize;
    int lockRefCount;
    int lockingContext;
    ScreenPtr resOwner;
    Bool keepFDOpen;
    int refCount;
} DRIEntPrivRec, *DRIEntPrivPtr;

#endif                          /* DRI_STRUCT_H */